News: Mechanics and Maritime Scienceshttp://www.chalmers.se/sv/nyheterNews related to Chalmers University of TechnologyTue, 05 Jul 2022 23:54:22 +0200http://www.chalmers.se/sv/nyheterhttps://www.chalmers.se/en/departments/m2/news/Pages/New-tool-could-lead-to-fewer-fatal-truck-accidents.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/New-tool-could-lead-to-fewer-fatal-truck-accidents.aspxNew tool could lead to fewer fatal truck accidents<p><b>​Each year, heavy trucks are involved in over 40,000 traffic accidents in Europe. And compared to other collisions, truck accidents are three times more common to end in fatalities. “If we want to achieve the Vision Zero - no more traffic deaths - we need to address the over-representation of heavy goods vehicles in fatal crashes. With this framework, we can contribute to developers and society at large by getting better safety systems on the market and thereby reduce the number of collisions and injuries in the future,” says Ron Schindler. By analyzing data from truck collisions throughout Europe, he and his colleagues have developed a framework for developing better truck safety systems. </b></p>​<span style="background-color:initial">Each year, more than 1.1 million road crashes occur in Europe. Of these, 23,000 have a fatal outcome. And despite the fact that heavy trucks are involved in only about four percent of these crashes, their share in fatal crashes is three times higher. With his dissertation<a href="https://research.chalmers.se/publication/fa257c57-5742-4d59-94e0-137f304859c1"> &quot;A holistic safety benefit assessment framework for heavy goods vehicles&quot;​</a>, Ron Schindler, PhD student in the Crash Analysis and Prevention group at the division for Vehicle Safety at Chalmers, wants to find a way to increase road safety for heavy trucks. The result is a newly developed framework designed to better evaluate safety systems introduced for truck traffic.<br /><br /></span><div><strong>“If we want to achieve the Vision Zero</strong> - no more traffic deaths - we need to address the over-representation of heavy goods vehicles in fatal crashes. With this framework, we can contribute to developers and society at large by getting better safety systems on the market and thereby reduce the number of collisions and injuries in the future,” says Ron Schindler.<br /></div> <h2 class="chalmersElement-H2">Unique analysis of European truck collision data and driver behaviour</h2> <div><span style="background-color:initial">T</span><span style="background-color:initial">o increase traffic safety, we need to implement both active and passive safety systems. Seat belts and airbags are examples of two passive safety systems, i.e. systems that are activated when the collision has already taken place. In recent years, there has been an increasing focus on the development of active safety systems that are activated before the crash takes place, such as automatic braking systems. Before introducing new safety systems on the market, it is important that they are evaluated in an effective way, to ensure that only the best ones are used in traffic. Until now, a large part of the research in road safety has focused on passenger cars, and no effective ways of evaluating safety systems have been available. <br /></span><br /></div> <div><strong>“A lot of research has so far focused on cars</strong>, but they are completely different from heavy goods vehicles. The vehicle design itself looks completely different and, also, those who drive the different vehicles do so under very different circumstances. So, we cannot just use all the work and research that has been invested into passenger car drivers, but we needed to work with data related to heavy goods vehicles,” explains Ron. <br /><br /></div> <div>When evaluating safety systems, virtual simulations based on driver behavior models are used. However, these models are based on drivers in passenger cars and information on how truck drivers behave in critical situations has not been available. To create an effective framework, Ron and his research colleagues have therefore analyzed data from truck collisions from all over Europe.<br /><br /></div> <div>“<strong>We needed to collect data on typical crash patterns</strong> that involved heavy goods vehicles from various European crash databases. We have also collected and analyzed detailed driver behavior data from a test track experiment and developed a new methodology to create synthetic populations of drivers,” explains Ron. </div> <div>The result is a unique framework that aims to provide manufacturers and system developers with a tool to understand how well a newly designed safety system would work in real truck traffic.<br /></div> <h2 class="chalmersElement-H2">Paves the way for increased truck safety</h2> <div>In the study results, Ron and his research colleagues were able to see how the behavior of truck drivers changed in situations where so-called vulnerable road users - pedestrians and cyclists - were present. The research group could identify differences both in the trucks’ movement patterns as well as in the truck drivers gaze behavior when a vulnerable road user was nearby. The results have implications for new regulations and system evaluation strategies (such as done by Euro NCAP for example), and may not only be used when designing frameworks that evaluates safety systems, but can also inform the design of new safety systems for truck traffic in the future.<br /><br /></div> <div><strong>“If we can identify the driver's behavior </strong>change when a cyclist is present, we can suppress a warning to not &quot;disturb&quot; the driver. If a cyclist is present, but the driver behaves instead in a way that is normal for when no cyclist is present, a warning could be triggered as it is likely that the driver has not noticed the cyclist and that there is an imminent danger for a conflict or collision,” says Ron.<br /><br /></div> <div>Read more about the research project <a href="https://research.chalmers.se/publication/fa257c57-5742-4d59-94e0-137f304859c1">A Holistic Safety Benefit Assessment Framework for Heavy Goods Vehicles</a></div> <div><br /></div> <strong> </strong><div><strong>Contact info: </strong></div> <div>Ron Schindler, PhD student in the Crash Analysis and Prevention group at the division for Vehicle Safety at Chalmers at the department of Mechanics and Maritime sciences, Chalmers. </div> <div>+46-31-7721536 </div> <div>ron.schindler@chalmers.se</div> <div><br /></div> <div>Text: Lovisa Håkansson</div>Fri, 01 Jul 2022 00:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/Railway-maintenance-robot-paves-the-way-for-societal-benefits.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Railway-maintenance-robot-paves-the-way-for-societal-benefits.aspxRailway maintenance robot paves the way for societal benefits<p><b>​Autonomous robots that detect and repair damages on railway tracks may soon become a reality. Now, a Chalmers-developed maintenance robot is the first of its kind in Europe to be tested on a real railway. The innovation is expected to lead to major savings for society as well as increased safety and accessibility in train traffic.</b></p>​<span style="background-color:initial">Inspection and maintenance of railway tracks causes major delays and stops in Swedish train traffic every year, entailing consequences for travelers and great costs for society. <br /><br /></span><div><strong>But now, researchers at Chalmers University of Technology</strong> have developed an innovation that might remedy the problem. The solution is an autonomous railway robot that is able to make regular inspections of the railway tracks and not only detect damages that have already occurred but also predict where maintenance needs will occur in the near future - with major societal benefits as a result.<br /><br /></div> <div>&quot;Today, damages on tracks are often taken care of only after they’ve occurred and it’s expensive for society to close off tracks for longer time periods. Using this robot, we’re able to quickly detect and fix problems before an accident or derailment occurs, while increasing the accessibility for travelers and freight traffic and saving money for society. In addition, it increases the safety for those working with railway maintenance,” says Krister Wolff, Associate Professor at the Division for Vehicle Engineering and Autonomous Systems at Chalmers and project manager for the development of the railway robot.<br /></div> <h2 class="chalmersElement-H2">Unique test on a real railway</h2> <div>At the beginning of June, the robot was tested for the first time on a real railway. The test was carried out on a 1.7 kilometer long railway section in Tortuna outside Västerås. The researchers had previously rigged a fabricated &quot;damage&quot; to the rails - a 6 millimeter thick plate - which they hoped the railway robot would be able to detect. Equipped with cameras, 3D lidar, GPS and a so-called accelerometer - a sensor that can detect any movements in height - the challenge for the robot was to detect the damage, stop and send information about exactly where the damage is and at what time it was discovered. The test was a success and can now be seen as the first of its kind in Sweden and Europe. You can <a href="https://chalmers-my.sharepoint.com/:v:/g/personal/wolff_chalmers_se/EcrAy0tkpP5DspwrzbUPrKUBkuxeEgELkdvI5BEykAyA5w?e=rYaTcU">watch a film from the test here. </a></div> <div><br /></div> <div>“There are some similar railway robot projects in the world, but not with the same holistic approach as this. In Sweden, it’s definitely the first time an autonomous robot has been tested on real railways and it’s probably also the first one in Europe,” says Krister Wolff.<br /></div> <h2 class="chalmersElement-H2">Part of major railway research investment in European</h2> <div>The project is funded by the Swedish Transport Administration and is part of the EU project IN2SMART2 focusing on railway research coordinated by the British Network Rail. The robot development project itself is project-led and carried out at Chalmers and was initiated in 2020 when project manager Krister Wolff began converting a conventional railway vehicle into an autonomous robot.</div> <div><br /></div> <div><strong>By feeding it with great amounts of training data</strong>, the robot can currently recognize and make the right decision based on what it encounters in its surroundings. This means that, for example, it slows down when encountering other trains and when passing road crossings, and it’s able to reads signs and signals at the track. So far it is not yet self-learning, but the long-term ambition is to make it able to not only predict or detect damage and send information about the need for maintenance, but also with the assistance of drones, for example, be able to carry out simpler maintenance on the tracks.<br /><br /></div> <div>“Let’s say that a train needs to make a sharp deceleration and the train driver suspects that it caused damage to the rails. The train driver may then signal to get a robot sent out to make a quick damage assessment and perhaps even fix the damage on the spot,” says Krister Wolff.<br /><br /></div> <div><strong>Contact</strong>: Krister Wolff, Associate Professor at the Division for Vehicle Engineering and Autonomous Systems at the Department of Mechanics and Maritime Sciences at Chalmers University of Technology and project manager for the robot development project.</div> <div><strong>Tel</strong>: +46-31-7723625</div> <div><strong>Email</strong>: krister.wolff@chalmers.se<br /><br /></div> <div>Text: Lovisa Håkansson</div> ​Thu, 30 Jun 2022 00:00:00 +0200https://www.chalmers.se/en/areas-of-advance/materials/news/Pages/2022-tandem-seminar.aspxhttps://www.chalmers.se/en/areas-of-advance/materials/news/Pages/2022-tandem-seminar.aspx2022 year's Tandem Webinars<p><b>​Here you will find 2022 all Tandem Webinars. All the webinars can be watched afterwards via Chalmers Play. </b></p><div></div> <div><span style="background-color:initial"><b>Upcoming webinars:</b><br /><div>8 September, <a href="/en/areas-of-advance/materials/Calendar/Pages/Tandem-WebinarNew-Insulation-Materials-for-High-Voltage-Power-Cables.aspx">New Insulation Materials for High Voltage Power Cables</a></div> <div>5 October, <a href="/en/areas-of-advance/materials/Calendar/Pages/Tandem-Webinar-Metallic-nanoalloys-for-next-generation-optical-hydrogen-sensors.aspx">Metallic nanoalloys for next generation optical hydrogen sensors</a><br />November, TBA</div> <br /><b>Wat</b></span><span style="background-color:initial;font-weight:700">ch 2022 year´s seminars on Chalmers Play</span><span style="background-color:initial;font-weight:700">:<br /><br /></span><div><span style="background-color:initial;font-weight:700">11 April</span><span style="background-color:initial;font-weight:700">: </span><span style="background-color:initial;font-weight:700">TANDEM SEMINAR</span><span style="background-color:initial"> </span><span style="font-weight:700;background-color:initial">– </span><span style="background-color:initial"><b>Perspectives on cellulose nanocrystals<br /></b></span><span style="font-size:16px">In this tandem webinar</span><span style="font-size:16px;background-color:initial"> </span><span style="font-size:16px">we have two hot topics dedicated to Cellulose nanocrystals: Cellulose nanocrystals in simple and not so simple flows &amp; Using liquid crystal phase separation to fractionate cellulose nanocrystals.</span><br /></div> <div><a href="https://play.chalmers.se/media/Tandem%20Webinar%20%E2%80%93%20Perspectives%20on%20cellulose%20nanocrystals/0_lqpv4rvq" style="outline:0px"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Watch the webinar on Chalmers Play</a><div><br /></div> <div><div><span style="font-weight:700">Program:</span></div> <div><ul><li>Moderator: Leif Asp, Co-Director Chalmers Area of Advance Materials Science</li> <li>C<span style="background-color:initial">ellulose nanocrystals in simple and not so simple flows, <a href="/en/staff/Pages/roland-kadar.aspx">Roland Kádár</a>, Associate Professor, Chalmers University of Technology.</span></li> <li>U<span style="background-color:initial">sing liquid crystal phase separation to fractionate cellulose nanocrystals.<a href="https://wwwen.uni.lu/recherche/fstm/dphyms/people/jan_lagerwall"> Jan Lagerwall</a>, Professor at the Physics &amp; Materials Science Research Unit in the University of Luxembourg.</span> </li></ul></div></div></div> <div><br /></div> <div><span style="font-weight:700;background-color:initial">30 May: </span><span style="background-color:initial;font-weight:700">TANDEM SEMINAR</span><span style="background-color:initial"> </span><span style="background-color:initial;font-weight:700">– </span><b><span></span>Lipid nanoparticles for mRNA delivery</b><br /><span style="background-color:initial"><a href="https://play.chalmers.se/media/Watch%20the%20webinar%20%E2%80%93%20Lipid%20nanoparticles%20for%20mRNA%20delivery/0_4y0mw1ss"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Watch the webinar on Chalmers Play</a><br />Organizer: Chalmers Area of Advance Mater</span><span style="background-color:initial">ials Science.<br /></span>The role of supramolecular lipid self assembly and protein corona formation for functional mRNA delivery to cells. Two hot topics will be covered by Elin Esbjörner and Fredrik Höök​.<br /><div><br /></div> <div><ul><li>Moderator: Maria Abrahamsson, Director of Materials Science Area of Advance </li> <li><a href="/en/staff/Pages/Fredrik-Höök.aspx">Fredrik Höök</a>, <em>Professor, Nano and Biophysics, Department of Physics, Chalmers University of Technology</em>.</li> <li><span style="background-color:initial"><a href="/en/staff/Pages/Elin-Esbjörner-Winters.aspx">Elin Esbjörner</a>, </span><i>Associate Professor, Biology and Biological Engineering, Chemical Biology, Chalmers University of Technology.</i></li></ul></div></div> <div> <div><strong>Read more:</strong></div></div></div> <a href="/en/areas-of-advance/materials/news/Pages/2021-tandem-seminars.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />2021 year's Tandem Webinars</a>​.​Wed, 15 Jun 2022 00:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/Greener-shipping-with-flying-ferries.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Greener-shipping-with-flying-ferries.aspxMajor climate benefits when ships “fly” over the surface<p><b>​Soon, electric passenger ferries skimming above the surface across the seas may become a reality. At Chalmers University of Technology, Sweden, a research team has created a unique method for further developing hydrofoils that can significantly increase the range of electric vessels and reduce the fuel consumption of fossil-powered ships by up to 80 per cent.</b></p>​<span style="background-color:initial">While the electrification of cars is well advanced, the world's passenger ferries are still powered almost exclusively by fossil fuels. The limiting factor is battery capacity, which is not enough to power ships and ferries across longer distances. But now researchers at <strong>Chalmers and the marine research facility SSPA</strong> have succeeded in developing a method that can make the shipping industry significantly greener in the future. The focus is on hydrofoils that, like wings, lift the boat’s hull above the surface of the water and allow the boat to travel with considerably less water resistance. A technology that in recent years has revolutionised sailing, by which hydrofoils make elite sailors' boats fly over the surface of the water at a very high speed. <br /></span><div>The researchers at Chalmers and SSPA now want to enable the sailboats' hydrofoil principle to be used on larger passenger ferries as well, resulting in enormous benefits for the climate. <br /><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/Arash%20200x200.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 15px" /><br /><span style="background-color:initial"><strong>&quot;</strong></span><span style="background-color:initial"><strong>The electrification of ferries cannot be done</strong> without drastically reducing their water resistance. This method will allow the development of new foil designs that can reduce resistance by up to 80 per cent , which in turn would significantly increase the range of a battery powered ship. In this way, we could also use electric ferries on longer distances in the future,&quot; says research leader <strong>Arash Eslamdoost</strong>, Associate Professor in Applied Hydrodynamics at Chalmers and author of the study Fluid-Structure Interaction of a Foiling Craft published in the Journal of Marine Science and Engineering.</span><br /></div> <div><br /></div> <div>Even for ships that today run on fossil fuels the climate benefit could be enormous, as similar hydrofoil technology could reduce fuel consumption by no less than 80 per cent. <br /></div> <h2 class="chalmersElement-H2">Unique measurement method arouses broad interest </h2> <div>At the centre of the research project is a unique measurement technique that the researchers have put together in order to understand in detail how hydrofoils behave in the water when, for example, the load or speed increases or the positioning of the hydrofoil changes. Using the data collected from the experiments, the team has developed and validated a method to simulate and predict with great precision how the hydrofoil would behave under a variety of conditions. The method is unique of its kind and can now be used to develop the design of hydrofoils for electric powered hydrofoil ferries.<br /></div> <div><br /><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/Laura%20200x200.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px 15px" />The study was conducted in collaboration with the research facility SSPA – one of only a few of its kind in the world – where <strong>Laura Marimon Giovannetti</strong> works as a researcher and project manager. She is the lead author of the study and has herself competed at the elite level for both the British and Italian national sailing teams. Today she is a research and development adviser to Sweden's Olympic committee and the Swedish national team with her sights set on helping the team win more medals at the Olympics in 2024. Marimon Giovannetti sees many possibilities for the unique measurement method developed by the team: </div> <div><br /></div> <div><div><strong>&quot;At the Americas Cup in San Francisco Bay in 2013</strong>, it was the first time we saw a 72-foot sailing boat learning how to “fly” using hydrofoils during the competition. And since then, we've seen a huge increase in sailing boats with hydrofoils. With this new method and knowledge we are able to bring together a range of different branches of engineering – naval architecture, advanced materials and aeronautics as well as renewable energy.&quot;</div></div> <h2 class="chalmersElement-H2">Paving the way for hydrofoils on electric ferries </h2> <div>Hydrofoil technology is not in itself a novelty, but was developed as early as the 60s and 70s. Back then the focus was on getting boats to travel at as fast as possible and the hydrofoils were made of steel, a heavy material with higher maintenance costs. Today's modern hydrofoils are made of carbon fibre, a much lighter and stiffer material that can maintain its rigidity even under high loads – and can be tailored to the expected loads. Part of the research project was therefore to fully understand how a carbon fibre structure behaves underwater during different operational conditions. The research team's method developed in association with modern technology is now paving the way for the use of carbon fibre hydrofoils on larger passenger ships that can travel in a safe, controlled and climate-friendly way even at low speeds. <br /><br /></div> <div><strong>&quot;You want the foil to be as efficient as possible</strong>, which means carrying as much weight as possible at as low a speed as possible with the least resistance. Our next goal is to use this method when designing more efficient hydrofoils for ferries in the future,&quot; says Eslamdoost.</div> <div><br /></div> <div><strong>More about the scientific article </strong></div> <div>The study <a href="https://www.mdpi.com/2077-1312/10/3/372">&quot;Fluid-Structure Interaction of a Foiling Craft&quot;</a> has been published in the Journal of Marine Science and Engineering. The authors are Laura Marimon Giovannetti, Ali Farousi, Fabian Ebbesson, Alois Thollot, Alex Shiri and Arash Eslamdoost. The researchers are active at SSPA and Chalmers University of Technology in Sweden and INP-ENSEEITH in France. <br /><br /></div> <div>Hugo Hammar’s funding from SSPA and Rolf Sörman’s funding from Chalmers University of Technology provided the financial support to run the experimental tests at SSPA. This study also received funding from the Chalmers University of Technology Foundation for the strategic research project Hydro- and Aerodynamics.<br /></div> <a href="https://www.mdpi.com/2077-1312/10/3/372"><div>https://doi.org/10.3390/jmse10030372<br /><br /></div> </a><div><strong>For more information, please contact:</strong></div> <div><strong>Arash Eslamdoost,</strong> Associate Professor in Applied Hydrodynamics at the Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Sweden</div> <div> +46 31 772 36 84  arash.eslamdoost@chalmers.se<br /><br /></div> <strong> </strong><div><strong>Laura Marimon Giovannetti,</strong> Senior Researcher and Project Manager, SSPA, Sweden</div> <div>+46 730729182, laura.marimongiovannetti@sspa.se</div> ​<div>Text: Lovisa Håkansson</div>Thu, 02 Jun 2022 00:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/Mission-make-the-car-autonomous.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Mission-make-the-car-autonomous.aspxMission: make the car autonomous!<p><b>​“I really like cars! So, this is fun! says 15-year-old Elin, one of the many high school students who got the chance to try out how to make cars autonomous in the workshop &quot;Get started with self-driving vehicles and AI&quot; which took place at Chalmers during this year's edition of the International Science Festival.</b></p>​<span style="background-color:initial">It's Friday morning in May and the Science Festival is in full swing in Gothenburg. In one of the larger classrooms at Chalmers, about 30 ninth graders from Fridaskolan in Kvillebäcken are waiting for a workshop in AI and self-driving vehicles to start. The benches are placed in a U-shape and the students' attention is directed towards the small cones in yellow, blue and white that are already lined up in a kind of track curling up on the space between them.<br /><br /></span><div><strong>Millie Skoglund</strong>, project assistant at the Division of Vehicle Technology and Autonomous Systems, is running today’s workshop along with <strong>Ola Benderius</strong>, associate professor at the division, and <strong>Liv Johansson</strong>, also a project assistant. Millie first came to Chalmers not even a year ago as a “Tekniksprånget” intern straight from high school. And there’s no doubt that she’s already more than comfortable in the topic autonomous vehicles.<br /><br /></div> <div>“There’s a lot of exciting stuff here at Chalmers. But the thing that we enjoy more than anything is self-driving <br />vehicles! declares Millie to the students before kick starting the workshop.<br /></div> <h2 class="chalmersElement-H2">A crash course in autonomous systems</h2> <div>First thing on the agenda: movie time! </div> <div>Scenes from a busy motorway are played on the screen, but from an unknown perspective. The students observe with curiosity. Vehicles - buses, cars and trucks - pass by at high speed. With each vehicle, a number appears. And a little further down on the screen, a diagram with a graph that moves up and down as the vehicles pass. What exactly are we watching? Millie throws the question out to her audience. No one seems willing to take a guess. <br /><br /></div> <div><strong>Let’s make it a cliff hanger</strong>, she states and approaches the three objects that are placed on a table - a camera, a GPS antenna and a lidar. All sensors that self-driving vehicles need to collect data from their surroundings. The camera that can identify which vehicles are nearby, the GPS antenna that can determine the distance to oncoming vehicles and the lidar, arguably the star in the crowd - at least if you ask Millie:<br /><br /></div> <div>“So, this one is the coolest! The lidar. It works like a radar, but it sends out millions of laser beams to be able to make very precise 3D scans of its surroundings,” she explains and goes on to revealing what the film was actually about. <br /><br /></div> <div>“It was a Chalmers truck equipped with sensors like these that drives every day from the harbor of Gothenburg to Borås. The numbers that popped up around the oncoming cars were a value of how certain the truck was in its assessment of what type of vehicle it encountered,” says Millie. <br /><br /></div> <div><strong>The topic brings us to the next</strong> step in the process of developing self-driving vehicles: the AI part. Because it’s not enough to be able to collect data from the car’s surroundings. The autonomous vehicle must be able to understand the information, as well. Which somehow becomes the &quot;cue&quot; for Millie’s colleague Ola Benderius to take over. He’s a researcher focusing on self-driving systems in cars, trucks, and aircrafts.<br /><br /></div> <div>“I develop programs that make it possible for self-driving cars to understand, interpret and make decisions based on the data that the sensors have collected. For example, if a camera on the car can detect white lines on the road, the program can make the car understand where it should drive,” he explains to the students.<br /></div> <h2 class="chalmersElement-H2">Say hello to the Kiwi car</h2> <div><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/kiwi%20200x200.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 10px" /><br />After the theoretical crash course in autonomous vehicles, it’s become high time for the students to try for themselves what it’s like to work with self-driving vehicles. The star of the show is the so-called Kiwi car. A small 3D-printed model car with black body frames and a red bumper with small glued-on eyes at the front. In the middle of the car, heaves of tangled cords in all the colors of the spectrum. And at the top, a small royal crown. The Kiwi car is part of a learning platform that Ola and his research team have been working on for several years. The purpose? To get young people to learn to program autonomous vehicles already in school.<br /><br /></div> <div><strong>The group is divided into smaller</strong> teams, half of which are stationed in a nearby room. Assignments are distributed. <span style="background-color:initial">In one room, the challenge is to use a program developed for self-driving cars to get the Kiwi car to autonomously get around the track outlined with cones. But to succeed, the teams need to set the car's ability to perceive the colors of the cones correctly – making blue look like blue and white look like white - so that the car knows how to navigate among the cones. Using an iPad, the students start to pull the controls with great enthusiasm to adjust the color perception in the car's camera so that they correspond to reality. <br />An exciting but not entirely simple task, it should turn out.<br /><br /></span></div> <div>At a table in one corner, Sanna, Elin, Noa and Carl-Johan are leaning over the iPad. They pull the controls up and down, trying to find the right levels. <br /><br /></div> <div>“We’re able to find the blue one but not the yellow one,” says Carl-Johan a bit frustrated.</div> <div>“Yes, the yellow ones can be a bit tricky,” says Ola and tries to help the group fine-tune some more with the controls. <br /><br /></div> <div>The group members take turns trying to find the right color coding on the iPad. At the same time, the group - not entirely unexpectedly – start talking about the subject of self-driving cars.<br /><br /><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/Elin%20kiwi%20200x200.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px 10px" /><strong style="background-color:initial">“We haven’t talked that much</strong><span style="background-color:initial"> about self-driving cars at school. But I think it’s interesting, says Elin who already has a great interest in cars. After the summer, she will start studying at a technical high school. </span><br /></div> <div>“I really like cars! So, this is fun,” she says, reaching for the iPad to give it another try.<br /><br /></div> <div>Classmate Sanna doesn’t really share Elin's passion for cars and technology, but still finds the workshop somewhat useful. In the autumn, she will go on to studying hairdressing, if everything goes according to plan.<br /><br /></div> <div>“I'm usually not that interested in things like this. But I think it's interesting to see how the systems work. It’s most fascinating to see how cars can drive themselves,” she says and delves into a possible future scenario:<br /><br /></div> <div>“Imagine if you’re a truck driver and the truck is self-driving. Then you can continue driving while being asleep,”<br />Sanna says and makes the whole group laugh.<br /><br /></div> <div>Suddenly all eyes are turned to the cut path on the floor. One of the other groups has made the car work.<br /><br /></div> <div><strong>“This looks great!” </strong>exclaims Ola.</div> <div><br />The small Kiwi car finds its way between the cones at a steady speed, completely by itself. And even though it looks promising, it soon gets into problem as it drives straight into a yellow cone. The group has no choice but to return to the drawing board. Ola tries to explain what went wrong. <br /><br /></div> <div>“Do you see that the image is fuzzy? It’s not completely clear. This means that the car will beware of everything,” he explains.<br /></div> <h2 class="chalmersElement-H2">Can you beat the record?</h2> <div>In the other room, the groups are battling another task. The focus here is not on getting the car to drive by itself. It’s about getting the Kiwi car around the track with the help of hand control with human help. <br /><br /></div> <div>“The previous groups’ record was 18 seconds! Which is really good. Can you beat it?” Millie asks.</div> <div><br /><strong>The teams immediately accept </strong>the challenge and throw themselves over the cars on the floor. Here, too, cones are lined up in a formation that forms a track for the cars. One in each group times with a timer clock while someone else in the group tries to steer the Kiwi car correctly, without hitting any cone. With mixed success. Cones are slightly overturned here and there, and the timer is consequently zeroed. But no one wants to be a quitter. After a few attempts and with a lot of focus - and quite a lot of laughter - some groups manage to get the car around the track in just over a minute.<br /><br /></div> <div>And pretty soon it's time to gather all the groups and finish the workshop.</div> <div>Once gathered in the classroom, Ola demonstrates what an optimal color setting looks like for the Kiwi car to perceive its surroundings in the best way. They try out together using the iPad controls while the camera view of the Kiwi car is projected on a screen. <br /><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/ola%20visar%20200x200.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 15px" /><br /><strong style="background-color:initial">“So, what seems to be the problem now</strong><strong style="background-color:initial">?” </strong><span style="background-color:initial">The question is directed to the class.</span><br /></div> <div>“The blue one!” the group agrees.</div> <div><div>“Yes exactly! The blue color needs to be adjusted a bit. I can tell that you’re getting the core of the principle, and that’s the most important thing,” says Ola.</div> <div> </div> <div>He continues to show the students pictures of real self-driving trucks and cars that, just like the Kiwi car, have been developed at Chalmers. Soon they will be tested on a nearby track. The students listen attentively, as if they’re really taking in what it means that the systems that they’ve just tested can be used on real roads. </div></div> <h2 class="chalmersElement-H2">&quot;It’s the future&quot;</h2> <div>The workshop seems to have left an impression on the students. Even on those who may not be planning for a career in technology.<br /><br /></div> <div>“I probably won’t work with things like this, but it's very cool. It's the future,” Noa states and leaves the Science Festival this time around.</div> <div><br />At the same time, Ola, Millie and Liv are getting ready to receive the next group of school students.<br /><br /></div> <div><strong>“We believe that it can be difficult </strong>to deal with these technically complex subjects in school. Our intention is to peel off the technically difficult but still give a good insight into how the technology works. It’s important to make these subjects easily accessible, partly to educate the public, but also to attract interest for technology among students in these age groups. And that we managed to show that what the students did is relevant to real vehicles, was really good,” says Ola.<br /><br /></div> <div>“I thought it became clear that the students got curious about how self-driving cars work. And when they got to try it out themselves and drive the Kiwi car, they became very engaged and interested,” Millie concludes.<br /><br /></div> <div>Text: Lovisa Håkansson</div>Thu, 19 May 2022 00:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/Extremely-quiet-fans-can-improve-our-health.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Extremely-quiet-fans-can-improve-our-health.aspxExtremely quiet fans can improve our health<p><b>​We spend more of our time indoors than ever. But the noise levels we are exposed to at home, in workplaces and schools have been shown to increase the risk of high blood pressure, mental illness and hearing damage – and may even have a detrimental effect on children's cognitive development. Now, a unique new study from Chalmers University of Technology, Sweden, has identified and eliminated the harmful noise that occurs in ventilation system fans – something that could significantly improve our physical and mental health.</b></p>​<span style="background-color:initial">Today, we spend as much as 87% of our lives indoors, according to <a href="https://www.buildinggreen.com/blog/we-spend-90-our-time-indoors-says-who">an American study​</a>. The quality of indoor environments has therefore become an increasingly important factor for health and well-being. Temperature, carbon dioxide levels and humidity are just some of the factors known to influence our indoor environments, but lately, studies have also shown how indoor noise can have a significant negative impact. <br /><br /></span><div>One contributing factor to the constant noise in indoor environments is the fans used in ventilation systems in homes, workplaces, and schools. The core of the problem – and what irritates the human ear – occurs when the fan blades rotate, generating a sound with a consistent and predictable frequency, known as a ‘tonal’ noise. Identifying exactly how this sound occurs, and how to remove it, has been a long-standing quest that researchers and fan manufacturers have not been able to find an answer to. <br /><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/Martin%20Ottersten_02.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 15px;width:200px;height:300px" /><br /></div> <div>“The source of the tonal sound has never before been identified on this type of fan. When you can reduce this tone, the fans become extremely quiet and, in that respect, unique. This is the first time someone has succeeded in both identifying and eliminating the source of the noise,” says Martin Ottersten, industrial PhD student in Fluid Dynamics at Chalmers University of Technology and Research and Innovation Engineer at Swegon, and lead author of the study.<br /></div> <h2 class="chalmersElement-H2">Increased risks of physical and mental illness</h2> <div>According to a report from the WHO, tonal noise of the kind that occurs in ventilation systems can negatively affect human health. The study shows that long-term exposure to this kind of sound increases the risk of high blood pressure, cardiac arrest, tinnitus, hearing damage, sleeping problems and stress. Children's cognitive development can also be negatively affected by the noise levels stemming from ventilation systems.</div> <div>Finding the source of what causes the tonal sound has therefore been of great interest to researchers and fan manufacturers for many years. <br /><br /></div> <div>“I am sensitive to sound and sometimes have difficulty concentrating and sleeping with disturbing sounds. And I know that tonal sound can disturb our brain. When I read the WHO's reports on how tonal sound can also lead to diseases such as high blood pressure and even cardiac arrest, the work took on a whole new dimension,” says Martin Ottersten, who has worked with the project for four years.</div> <h2 class="chalmersElement-H2">Lower energy usage another benefit</h2> <div>With the help of advanced computer calculations, sometimes lasting weeks at a time, Martin Ottersten was able to study how air flows through the fan during rotation and where turbulence occurs. The calculations also provided audio data for the fan, which was used to locate the source of the tones.</div> <div><br /></div> <div>After several variations, he managed to design a fan in such a way that the tonal sound decreased drastically, an improvement which could allow for much quieter and healthier indoor environments.<br /><br /></div> <div>“By trying out different modifications to the fans and measuring the sound levels using very complex calculations on hundreds of computers, over several weeks, we could determine exactly where in the fan's construction the tonal sound originated and how to eliminate it. And what is more, we also observed that the efficiency of the fan increases as the tonal sound decreases,” says Martin Ottersten.<br /><br /></div> <div>He believes that this research now has great potential to be put into practice, and that extremely quiet fans which do not produce tonal noise could soon be commercially available. <br /><br /></div> <div>“We are currently seeking a patent for this technology and implementing it into our fans. After that we want to get them out to market, so that we can contribute to creating healthier indoor environments – as well as helping reduce energy consumption and carbon dioxide emissions.<br /><br /></div> <div>The results of the study <a href="https://aip.scitation.org/doi/10.1063/5.0055242">&quot;A numerical method to predict and minimize fan tonal noise&quot; </a>have been published in the scientific journal Physics of Fluids.</div> <div>The study was carried out at the Division of Fluid Dynamics at the Department of Mechanics and Maritime Sciences, Chalmers University of Technology and was financed by Swegon AB.<br /><br /></div> <div><strong>More about the different types of sound generated by fans</strong></div> <div>Sound from fans consists of two types of sound: broadband and tonal sound. The broadband sound is heavier, but it’s the tonal sound – which is regular and reoccurring – that irritates and affects us humans the most. To reduce noise levels in workplaces, homes and schools, silencers are therefore installed so that people can stay in the premises for a longer period of time. These mufflers remove much of the broadband sound but are not as good at absorbing the more harmful tonal sound. In addition, the mufflers contribute to increased energy consumption and higher carbon dioxide emissions.</div> <div><br /></div> <div><strong>For more information, contact:</strong></div> <div>Martin Ottersten</div> <div>Industrial PhD Student</div> <div>martin.ottersten@chalmers.se</div> <div>+46-73-1502818</div> <div><br />Text: Lovisa Håkansson and Joshua Worth </div>Thu, 21 Apr 2022 00:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/How-e-scooters-can-safely-operate-in-a-city-.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/How-e-scooters-can-safely-operate-in-a-city-.aspxHow e-scooters can safely operate in a city <p><b>​E-scooters have become a familiar sight in cities worldwide in recent years, with many new companies renting them for use. But their arrival has also brought new safety concerns. Now, researchers from Chalmers University of Technology, Sweden, present a framework for comparing how different micromobility vehicles, such as e-scooters, and bicycles move in cities, a methodology that can benefit companies and local authorities alike, and - most importantly - contribute to improving traffic safety.​​</b></p>​<span style="background-color:initial">In recent years, e-scooters have proliferated in cities worldwide, offering citizens a novel and convenient way to get around. However, their swift arrival has often left local authorities unprepared for the challenges that such a new technology inevitably brings to the transport system. Commonly voiced concerns are that e-scooter riders break traffic rules, ride too fast, and park inappropriately. Perhaps of most concern is that crash databases, as well as insurance claims, show a clear and disproportionate rise in crashes as the number of e-scooters rises. </span><div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><strong>Local authorities have sought to </strong>address these concerns through measures such as speed restrictions, requiring users to wear helmets, designated parking areas, and limiting the number of scooters or operators allowed in the city - or even outright bans.<br /></span><span style="background-color:initial"><br />“E-Scooters are not necessarily more danger</span><span style="background-color:initial">ous than bicycles, but they are often perceived as such, possibly because of their unfamiliarity and the behavior of their riders,” explains Marco Dozza, Professor in Active Safety and Road-User Behaviour at Chalmers University of Technology, and lead author of the new study.<br /><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/Marco%20Dozza%20180x180.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 15px;width:180px;height:180px" /><br /></span><span style="background-color:initial">“</span><span style="background-color:initial">While bicycling benefits from established social norms, regulations, and infrastructure, the same is not true for newer micromobility vehicles, such as e-scooters, Segways, monowheels, electric skateboards and so on. The spread and usage of these vehicles is only likely to increase in the near future; so, finding ways to safely integrate them in the transport system is a vital and urgent challenge.”</span><p class="MsoNormal"><span lang="EN-US"><br /></span></p> <p class="MsoNormal"><span lang="EN-US"><strong>To understand what makes</strong> riding new micromobility vehicles unsafe and how that compares to riding a more traditional bicycle, extensive data is needed. Scooter companies already have access to huge amounts of data, because they track every ride using GPS, but the quality of the data tends to only be useful for logistics and mapping services, while providing insufficient information about safety. Hospital admissions data and police reports may help appreciate the size of the safety problem - but cannot explain <i>why</i> crashes happen.</span></p> <p class="MsoNormal"><span lang="EN-US">What is missing is a framework for collecting and analysing data to understand what makes rider behavior unsafe and causes the crashes. Now, Marco Dozza and colleagues present a framework for exactly this.<br /></span></p> <h2 class="chalmersElement-H2">Two different strategies: braking or steering away</h2> <p class="MsoNormal"><span lang="EN-US">The researchers have outlined a process for data-collection in the field and analysis, that is intended to be repeatable and adaptable for different vehicles from identifying useful test-maneuvers, to measuring and analysing the results of subsequent experiments. In their pilot study, the researchers compared bikes and e-scooters directly, equipping them with measuring instruments and testing the riders on various maneuvers, involving combinations of braking - both planned, and in reaction to a random signal - and steering at different speeds.<br /><br /></span></p> <p class="MsoNormal"><span lang="EN-US"><a href="https://www.youtube.com/watch?v=FWWfsQrtDQY">Watch a video of the research tests here ​</a><br /> <br /> <strong>One of the most relevant findings</strong> of the new research was the fact that the braking performance of a bicycle proved consistently superior to the one of an e-scooter - offering faster deceleration and up to two times shorter stopping distance. In contrast, the e-scooter performed better during the steering maneuvers, involving a slalom through traffic cones - likely due to its shorter wheelbase and no need to pedal. The participants were also questioned about their experience and confirmed that braking felt more comfortable on the bicycle and steering more so on the e-scooter.<br /><span style="background-color:initial"><br />“The t</span><span style="background-color:initial">wo vehicles showed distinct advantages and disadvantages through the different scenarios,” explains Marco Dozza. “We can say that the best strategy for a cyclist and an e-scooterist to avoid the same crash may be different - either braking or steering away.”</span><br /></span></p> <p class="MsoNormal"><span lang="EN-US"><br /><strong>The results from these experiments</strong> may inform how the infrastructure might be designed to benefit all riders - for example, a winding path might be easier for e-scooterists than for cyclists, whereas a cyclist might find a narrower path, with low light less challenging than an e-scooterist.<br /><span style="background-color:initial"><br />“Of cours</span><span style="background-color:initial">e, this experiment was small, and the data far from conclusive. However, this pilot experiment demonstrates the potential for field data to describe rider behavior and help understand the causes of crashes. With more data from a larger sample of riders, we may reach a comprehensive picture of the rider behaviors that makes riding an e-scooter safe. This information may help the authorities to devise innovative safety measures and motivate their decisions to the public with objective data” explains Marco Dozza.</span><br /></span></p> <h2 class="chalmersElement-H2">Potential application in smart future cities</h2> <p class="MsoNormal"><span lang="EN-US">The researchers will now, in collaboration with Scandinavian scooter company Voi, collect more field data to account for differences between riders and scenarios. Eventually, findings such as the one presented here could teach future automated vehicles and intelligent-transport-systems how to best interact with scooterists and cyclists by anticipating their behavior. Other safety measures that could be based on results from field-data analyses include dynamic geofencing - limiting the scooters’ speed depending on how crowded an area is, or the time of the day or week. <br /><span style="background-color:initial">Voi were not involved in the research project outlined here in any form.</span><br /></span></p> <p class="MsoNormal"><span lang="EN-US"> <br /> The article <a href="https://doi.org/10.1016/j.jsr.2022.01.007">&quot;<i>A data-driven framework for the safe integration of micro-mobility into the transport system: Comparing bicycles and e-scooters in field trial&quot;</i> ​</a>was published in the Journal of Safety Research and was written by Marco Dozza, Alessio Violin, and Alexander Rasch. <br /></span></p> <br /> <p class="MsoNormal"><span lang="EN-US">The research was supported by several students from the Master Programme in Automotive Engineering, for instance via the Automotive Engineering Project which will be part of the new Master programme in Mobility Engineering at Chalmers. The Area of Advance Transport and Trafikverket sponsored this work.<br /><br /><b></b></span></p> <p class="MsoNormal"><b>For more information on scooters and micromobility vehicles in cities, contact: </b><br /></p> <p class="MsoNormal"><span lang="EN-US">Marco Dozza<br /> Professor at Mechanics and Maritime Sciences, Division of Vehicle Safety<br /> </span><a href="mailto:marco.dozza@chalmers.se">marco.dozza@chalmers.se</a><span lang="EN-US"><br /> +46 31 772 3621</span></p> <span style="background-color:initial"> ​</span><div><span style="background-color:initial">Text: Lovisa Håkansson ​and Joshua Worth </span></div></div> ​Thu, 31 Mar 2022 07:00:00 +0200https://www.chalmers.se/en/areas-of-advance/energy/news/Pages/Invitation-apply-for-funding-for-interdisciplinary-research-ideas-within-all-energy-fields.aspxhttps://www.chalmers.se/en/areas-of-advance/energy/news/Pages/Invitation-apply-for-funding-for-interdisciplinary-research-ideas-within-all-energy-fields.aspxInvitation – Apply for funding for interdisciplinary research ideas within all energy fields<p><b>​Call: Invitation to apply for funding from Energy Area of Advance, for interdisciplinary research ideas within all energy fields. Chalmers Energy Area of Advance allocates 12 MSEK per year over 2023 and 2024 for interdisciplinary projects in the size of 1.25 - 2.5 MSEK/year for two years). The call is open for base funded faculty, externally funded faculty, and assistant professors.</b></p><strong>​</strong><span style="background-color:initial"><strong>The projects must focus on </strong><strong>aspects </strong>connected to a future sustainable energy system. It should be interdisciplinary and include expertise from at least two different research groups or two different research approaches or analyse the same question from two different angles. <br /><br /><strong>Example of two different approaches </strong>could be: theory + experiment, technology + behaviour, component + system, interviews + model, any method 1 + method 2. <br /><br /><strong>Collaboration with external partners</strong> is positive but remember that AoA-funding only can be used by employees at Chalmers, for details see below. It is also possible to form projects as a complement to already ongoing projects to add additional aspects.<br /><br /></span><div><strong>For instructions, see the template.</strong></div> <div>Special considerations will be given to projects that are connected to the following themes:</div> <div><strong>1.)</strong><span style="white-space:pre"> </span>Collaboration projects where scientists with projects further away from implementation collaborate with those that are close to implementation.</div> <div>If advice is needed, please contact Chalmers innovation office where Anne Alsholm, <a href="mailto:anne.alsholm@chalmers.se">anne.alsholm@chalmers.se​</a>, is the contact person for energy related questions.</div> <div><strong>2.)</strong><span style="white-space:pre"><strong> </strong></span>Research supporting resilient energy systems and European energy and energy technology autonomy.</div> <div>Evaluation criteria:</div> <div><ul><li>Relevance for the energy research field.</li> <li>Interdisciplinary (include expertise from at least two different research groups or two different research approaches, or analyse the same question from two different angles, see examples above).</li> <li>Scientific quality.</li> <li>Potential for successful implementation (competence, project- and time- plan etc).</li> <li>Potential for continuation in future externally funded projects is welcome but not mandatory.</li> <li>Also consider criteria as gender and the UN sustainability goals.</li></ul></div> <div>Costs that can be covered by AoA funding:</div> <div><ul><li>Salary for senior researchers including assistant professors (max 25% of full time, exceptions need to be motivated, names should be listed).</li> <li>Postdocs – full cost coverage (list name if already known. Write “to be announced” if so).</li> <li>S<span style="background-color:initial">alary for already employed postdocs must be motivated and the employees name should be listed.</span></li> <li>AoA funding cannot be used to recruit PhD students. However, PhD students already employed at Chalmers can work in the project (name should be listed).</li> <li>Relevant experiment or lab costs (max. 20% of total budget and costs should be specified).</li> <li>T<span style="background-color:initial">r</span><span style="background-color:initial">avel costs.</span></li></ul></div> <div><strong>Funds should be used</strong> during each budget-year as presented in your budget. Delays caused by legal rights of staff maybe accepted, but not delays caused by project management issues.<br /><br /></div> <div><strong>The project proposal,</strong> of max. 4 A4 pages, should be sent to the Energy Area of Advance <a href="mailto:energy@chalmers.se">energy@chalmers.se</a> <strong>no later than 13th May 2022.</strong> <br /><br /><strong>A decision will be made</strong> by the management team Tomas Kåberger, Sonia Yeh, Cecilia Geijer, Anders Hellman and Annemarie Wöhri before summer.<br /><br /></div> <div><strong>Please note that costs</strong> connected mobility, visiting researchers, support for applications, conferences, community building, seed funding or the equivalent that contribute to the strategic development of the Energy Area of Advance, can be applied for separately on an ongoing basis. Templates for this separate application can be found at <a href="https://intranet.chalmers.se/en/tools-support/research-utilisation/funding-of-research-innovation/funding-from-chalmers-aoa-and-ei/">Chalmers intranet.</a> <br /><br /></div> <div><strong>Template interdisciplinary project proposal Energy Area of Advance</strong></div> <div>(max 4 A4 – after erasing the instructions)</div> <div>The application can be written in Swedish or English and should contain clear motivations for why the suggested project should be prioritised.<br /><br /></div> <div><strong>Aim</strong>. Overreaching goal of the project (approx. 0.5 A4).<br /><br /></div> <div><strong>Project description.</strong> Background (problem description, state of the art, knowledge gap), Research question(s), Methods, Project plan including time plan and other relevant information, e.g. goals and milestones (approx. 2-3 A4).<br /><br /></div> <div><strong>Organisation and Budget.</strong> State affiliation (department and division) for the main project leader(s) and list names of people involved, both the researcher(s) that will take part of this funding as well as other researchers involved (if the project is larger than this funding). Main applicant should have a tenure position (permanent employment, faculty or specialist) at Chalmers or being assistant professor, but funds can be used by other Chalmers’ research staff categories. Please list a preliminary distribution of annual fund between different staff categories (approx. 0.5 A4).</div> <div>Co-funding option. Please specify in your application if you are willing to share your project proposal with our industry partners ABB, Göteborg Energi and Preem for eventual co-funding. If agreed upon, a project list including titles and participants are send out to our partners, followed by sending the full proposal upon further request.<br /><br /></div> <div><span style="white-space:pre"> </span>I do not want to share my proposal with Chalmers industry partners</div> <div><span style="white-space:pre"> </span>It is ok to share my proposal with ABB</div> <div><span style="white-space:pre"> </span>It is ok to share my proposal with Göteborg Energi</div> <div><span style="white-space:pre"> </span>It is ok to share my proposal with Preem<br /><br /></div> <div>CV. A maximum 2 pages CV for the main applicant(s) and if applicable also the researcher(s) that will use most of the funding.</div> Thu, 31 Mar 2022 00:00:00 +0200https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Call-for-ICT-seed-projects-2022.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Call-for-ICT-seed-projects-2022.aspxCall for ICT seed projects 2023<p><b> Call for proposals within ICT strategic areas and involving interdisciplinary approaches.​</b></p><h3 class="chalmersElement-H3" style="color:rgb(153, 51, 0)"><br /></h3> <h3 class="chalmersElement-H3">Important dates:</h3> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div><ul><li><b>NEW! Submission date: </b><span>9 May, at 09.00</span>, 2022</li> <li><b>Notification:</b> mid-June, 2022</li> <li><b>Expected start of the project:</b> January 2023</li></ul></div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <h3 class="chalmersElement-H3">Background</h3> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div><b>The Information and Communication Technology (ICT) Area of Advance</b> (AoA) provides financial support for SEED projects, i.e., projects involving innovative ideas that can be a starting point for further collaborative research and joint funding applications. </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>We will prioritize research projects that <strong>involve researchers from different research communities</strong> (for example across ICT departments or between ICT and other Areas of Advances) and who have not worked together before (i.e., have no joint projects/publications). </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>Research projects involving a <strong>gender-balanced team and younger researchers</strong>, e.g., assistant professors, will be prioritized. Additionally, proposals related to <strong>sustainability</strong> and the UN Sustainable Development Goals are encouraged.</div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div><b><em>Note: </em></b><em>Only researchers employed at Chalmers can apply and can be funded. PhD students cannot be supported by this call.  Applicants and co-applicants of research proposals funded in the 2021 and 2022 ICT SEED calls cannot apply. </em></div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div><em><br /></em></div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div><b>The total budget of the call is 1 MSEK.</b> We expect to fund 3-5 projects</div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <h3 class="chalmersElement-H3">Details of the call</h3> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div><ul><li>The project should include at least two researchers from different divisions at Chalmers (preferably two different departments) who should have complementary expertise, and no joint projects/publications.</li> <li>Proposals involving teams with good gender balance and involving assistant professors will be prioritized.</li> <li>The project should contribute to sustainable development. </li> <li>The budget must be between 100 kSEK and 300 kSEK, including indirect costs (OH). The budget is mainly to cover personnel costs for Chalmers employees (but not PhD students). The budget cannot cover costs for equipment or travel costs to conferences/research visits. </li> <li>The project must start in early 2023 and should last 3-6 months. </li></ul></div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <h3 class="chalmersElement-H3">What must the application contain?</h3> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>The application should be at most 3 pages long, font Times–Roman, size 11. In addition, max 1 page can be used for references. Finally, an additional one-page CV of each one of the applicants must be included (max 4 CVs). Proposals that do not comply with this format will be desk rejected (no review process).</div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>The proposal should include:</div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>a)<span style="white-space:pre"> </span>project title </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>b)<span style="white-space:pre"> </span>name, e-mail, and affiliation (department, division) of the applicants</div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>c)<span style="white-space:pre"> </span>the research challenges addressed and the objective of the project; interdisciplinary aspects should be highlighted; also the applicant should discuss how the project contributes to sustainable development, preferably in relation to the <a href="https://www.un.org/sustainabledevelopment/sustainable-development-goals/" title="link to UN webpage">UN Sustainable Development Goals (SDG)</a>. Try to be specific and list the targets within each Goal that are addressed by your project.</div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>d)<span style="white-space:pre"> </span>the project description </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>e)<span style="white-space:pre"> </span>the expected outcome (including dissemination plan) and the plan for further research and funding acquisition</div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>f)<span style="white-space:pre"> </span>the project participants and the planned efforts</div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>g)<span style="white-space:pre"> </span>the project budget and activity timeline
</div> <div><div><br /></div> <h3 class="chalmersElement-H3">Evaluation criteria</h3> <div><ul><li>Team composition</li> <li>Interdisciplinarity</li> <li>Novelty</li> <li>Relevance to AoA ICT and Chalmers research strategy as well as to SDG</li> <li>Dissemination plan</li> <li>Potential for further research and joint funding applications</li> <li>Budget and project feasibility​</li></ul></div></div> <div><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial"><br /></span></div> <div><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">Submission</span></div> <div> </div> <div> </div> <div> </div> <div>The application should be submitted as <b>one PDF document</b>.<span style="background-color:initial"></span></div> <div><br /></div> <div><a href="https://easychair.org/conferences/?conf=aoaictseed2023" target="_blank" title="link to submission"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Submit​</a></div> <div><br /></div> <div> </div> <div> </div> <div> </div> <p class="chalmersElement-P"><span><br /></span></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div><span style="background-color:initial">The proposals will be evaluated by the AoA ICT management group and selected Chalmers researchers.

</span></div> <div><span style="background-color:initial"><b><br /></b></span></div> <div><span style="background-color:initial"><b>Questions</b> can be addressed to <a href="mailto:erik.strom@chalmers.se">Erik Ström</a></span></div> <div> </div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">General information about the ICT Area of Advance can be found at <a href="/en/areas-of-advance/ict/Pages/default.aspx">www.chalmers.se/ict ​</a></span><br /></div> <div> </div> <div><span style="background-color:initial"><br /></span></div> <div> </div> <div><img src="/SiteCollectionImages/Areas%20of%20Advance/Information%20and%20Communication%20Technology/About%20us/IKT_logo_600px.jpg" alt="" /><span style="background-color:initial">​​<br /></span></div>Wed, 30 Mar 2022 00:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/This-day-will-probably-define-whether-I-choose-technology-in-the-future.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/This-day-will-probably-define-whether-I-choose-technology-in-the-future.aspx"Today will probably define whether I choose technology in the future"<p><b>​“Yes! I love six-cylinder engines!” The quote belongs to high school student Chloé as she, along with 20 other young girls, faced the task of disassembling a car engine during the IGE-day 2022, which took place at the division for Combustion and propulsion system at Chalmers last week.</b></p>​<span style="background-color:initial">On March 25, the 2022 edition of the &quot;IGE-day&quot; kicked off as 75 companies in Sweden - including Chalmers - welcomed girls aged 13 - 19 under the slogan “Introduce a Girl to Engineering.” The purpose? To give young girls the chance to meet role models in technology and explore what it would be like to study and eventually work as an engineer.<br /><br /></span><div>The venue for the day at Chalmers was the Division of Combustion and Propulsion Systems at the Department of Mechanics and Maritime Studies. Around 20 high school and secondary school students entered the division’s laboratories to get a glimpse of what it might look like when the university students and researchers try to develop internal combustion engines powered by renewable fuels - and thereby contribute to a more sustainable transport system.<br /><br /></div> <div><strong>Lisa Hedlund, a second-year studen</strong>t in the Master of Engineering program Automation and Mechatronics, was there to inspire and kick-start the day. During her training, she’s learning to develop transport solutions that are cheaper, more energy-efficient and environmentally friendly than today. By no means an obvious study choice for Lisa, looking back:  <br /><br /></div> <div>“I honestly didn’t think this was something for me. But now I love it! There’s so much exciting to study in this field. I’m considering going into AI and data science once I’ve finished my studies. It would be really cool to work with self-driving cars,” she says.<br /><br /></div> <div>After some introductory coffee and cake, it's time to take a closer look at the research conducted in the labs. Responsible for the tour are Head of Division Lucien Koopmans, professor of combustion and propulsion systems, and Lena Lang, Tekniksprånget trainee, who’s not only conducting lab work during her trainee semester, but also is a keen collector of social media content from the research work carried out at the division. <br /><br /></div> <div><strong>One of the girls taking part</strong> in the IGE-day is Iman, a 9th grader from Kviberg's high school in Gothenburg. For <span style="background-color:initial">her, today's visit will probably play a crucial role in her future study choices.</span></div> <div><br /></div> <div>“I’ve actually chosen a program in social science in high school. But I'm interested in programming and considering if I might go on to a technical education later. This day will probably define whether I choose technology in the future,” she explains.<br /><br /></div> <div>The first stop on the tour is the spray lab. Here, laser diagnostics are used to see how hydrogen, for example, is mixed with air in an internal combustion engine. When liquid fuel is injected into an engine, it’s done under high pressure which creates a cloud of fuel droplets. The effect is almost spray-like, hence the name. The researchers are studying what the injection process looks like and what emissions are produced. A relatively unexplored but highly interesting topic in the search for sustainable fuels.<br /><br /></div> <div>“Our job is to contribute with knowledge that does not yet exist. That’s what we call research. And that happens here in the lab,” Lucien explains to the group.<br /><br /></div> <div><strong>The next stop takes place</strong> at the engine lab, where the researchers try to measure what the fuel consumption looks like in an internal combustion engine and what emissions come out. Right now, it’s hydrogen gas that is being tested. And what about hydrogen - will there be any harmful emissions? Lucien throws out a question:<br /><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/Lucien%20visar%20motor%20600x340.jpg" alt="" style="margin:20px 40px" /><br /></div> <div>“What happens when hydrogen meets air?”</div> <div>The answer is immediate: </div> <div>“It becomes water,” the group agrees.</div> <div>“Yes, that’s right. But will there be any carbon dioxide? Well, actually, there will. But just a little. And not from the hydrogen gas itself, but from the oil in the engine. We learned that here in the lab,” Lucien explains.<br /><br /></div> <div>The group continues to explore the premises. After another quick stop among oily pistons and all sorts of tools, the group has approached the final destination on the lab trip. Scattered in a large room are four huge car engines. A modern Volvo petrol engine, an old six-cylinder engine, a diesel engine and a special Mitsubishi engine. Because now, it’s time to walk the talk. <br /><br /></div> <div><strong>“So, now you can start unscrewing</strong> these engines and see what is hidden underneath! I want you to remove the cylinder head so that you get down to the pistons,” Lucien instructs.<br /><br /></div> <div>After a quick demonstration of the box's most useful tools and an equally quick division into four groups, the students equip themselves with coats, gloves and tools and immediately start working. <br /><br /></div> <div>By the six-cylinder engine, the high school girls Fatima, Matilda and Chloé have already come a long way.</div> <div><br /><strong>“Yes! I love six-cylinder engines</strong>, says Chloé, a Natural Science Program student at Franklins High school in Gothenburg. In school, math and programming are her favorites, and she really likes watching You tube videos on people disassembling engines.<br /><br /></div> <div>“It’s fun to understand how things in our everyday life work,” she continues. “I usually sit at the kitchen table mending and picking stuff apart.”<br /><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/Chloe%20kollar%20verktygslåda%20200x200.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 15px" /><br /><span style="background-color:initial">Her group members Matilda and Fatima, students in Urban planning and Environment at Lindholmens Technical high school, may not be as keen on the topic of car engines, but still want to explore what a future in the field of technology might look like.</span><br /></div> <div><br /></div> <div>“I’ve always wanted to be an architect, ever since I was little. But then when I started high school, I became interested in becoming an engineer. Above all, it is programming that I like, but so far, I’ve only learned the basics,” says Fatima.<br /><br /></div> <div><strong>And when asked what </strong>she thinks about today’s assignment to unscrew a car engine?</div> <div>“Yes, well, I believe everything is fun if you know what you’re doing.”<br /><br /></div> <div>Her group member Matilda is more into car design. And architecture. Her technical interest comes from home, more specifically from her mom who is Matilda’s biggest source of inspiration.<br /><br /></div> <div>“Mom is building bridges and roads at the Swedish Transport Administration. In that sense she takes part in changing the city and that’s inspiring,” says Matilda.<br /><br /></div> <div>Following the tour, although from the back seat, is Mitra Sarchami, teacher of math, physics, chemistry, biology and programming at Kviberg's Secondary school. By visiting Chalmers, she wants to inspire her students, especially the girls, to choose a career path in technology in the future. <br /><br /></div> <div><b>“I want to make these subjects feel</b> more like everyday matters and less distant from my students. 20 years ago, teaching consisted only of theories and what was in the textbook. But today when we get out and make visits like this, the students understand that this is actually about real matters like the environment and health. These topics become more tied to their everyday lives. This will be a real eye-opener to many students,” Mitra explains.<br /><br /></div> <div>And for motor enthusiast Chloé, it’s already a done deal. </div> <div>“Most likely, I’ll be a Chalmers student in a couple of years,” she concludes and returns to the six cylinders.<br /><br /></div> <div>Text: Lovisa Håkansson​<span style="background-color:initial">​</span></div>Wed, 30 Mar 2022 00:00:00 +0200https://www.chalmers.se/en/areas-of-advance/Transport/news/Pages/Rapid-transformation-of-the-transport-sector-is-changing-research.aspxhttps://www.chalmers.se/en/areas-of-advance/Transport/news/Pages/Rapid-transformation-of-the-transport-sector-is-changing-research.aspxRapid transformation of the transport sector is changing research<p><b>​The transport sector has undergone revolutionary changes over the past decade and the pace of change continues to increase. This has entailed a transition from traditional vehicle research to completely new research areas that span several disciplines. Sinisa Krajnovic, who is leaving the position as Director of Transport Area of Advance on 31 March after a total of six years, has extensive experience of these changes.</b></p><div><span style="background-color:initial"><strong>What changes have you seen during this period?<br /></strong></span><br /></div> <div><img src="/sv/styrkeomraden/transport/nyheter/PublishingImages/Sinisa_Krajnovic_230x300.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px" />“So much has happened in recent years and the major restructuring of the transport system has created a need for compl​etely new research and education in new disciplines”, says Sinisa Krajnovic.<br /><br /></div> <div>“The first major shift is related to new vehicle technologies such as electrification and automation, which have driven development forward at a very fast pace. But also new technology such as AI (Artificial Intelligence). A good example is that today we have electrified trucks. Who would have thought that development would go so fast?”<br /><br /></div> <div>“The second major shift in the transport industry is the development from product to service orientation. It has fundamentally changed the industry. Today, the automotive industry is talking less and less about the manufacture of cars and more and more about the services it offers.”<br /><br /></div> <div>“Our partners in the transport industry say that they have to run faster and faster to keep up with the development. This means that we at Chalmers must run even faster to ensure that we can meet the needs for research, education and competence provisioning, both next year, and in five and ten years.&quot;</div> <div><br /></div> <div>“Simultaneously with the changes in the transport system, a change in the energy system is also underway. This means that boundaries between different research areas are blurred. Transport issues are integrated with both energy issues and urbanisation issues, as well as digitization issues.<br /><br /></div> <div>“Our way of working in areas of advances is a huge advantage that makes it easy for us to quickly adapt to changes in the world around us. We can create new research areas and adapt our education.”<br /><br /></div> <div><strong>What are you most proud of having accomplished?</strong></div> <div><strong><br /></strong></div> <div>“To prepare our researchers for the major societal challenges, we in the Transport Area of Advance have <br />created a way of working that is based on close collaboration between different departments, divisions and research groups. But also with the University of Gothenburg, which complements our competencies, and with authorities in the transport sector. It has been a key to success, and I am very proud that together we have developed an effective organisation for education, research, skills supply, infrastructure issues and utilisation.”</div> <div><br /></div> <div>“We have a very strong network at Chalmers, but we have also created a great deal of trust externally. We have developed clear strategies for our cooperation with the Chalmers strategic partners: Volvo Group, Volvo Cars, CEVT and the Norwegian Transport Authority, Statens vegvesen. Together with the industry, we have built strong infrastructures such as Asta Zero (the world's first full-scale test environment for road safety), Revere (a 400 square meter lab for test vehicles, environmental sensors and simulators) and we are now building SEEL (a national test bed for electromobility).”</div> <div><br /></div> <div>“I am also proud that we have created completely new forms of cooperation. For example, through projects with our researchers as academic experts in industry. The fact that researchers can divide their working time between academia and industry and gain direct insight into the needs of industry is very valuable. So-called capstone projects at bachelor's level that are based on collaboration between industry, Chalmers and foreign universities are other initiatives that we have supported and that aim to equip our students for the future.&quot;</div> <div><br /></div> <div>“Our formation of an EU group to effectively organise efforts around funding from the EU is also worth mentioning.”</div> <div><br /></div> <div><strong>What have been the greatest challenges?<br /><br /></strong></div> <div>“Internally, developments in society have placed great demands on our researchers to switch from being specialists in an area to increased collaboration across disciplinary boundaries to address common challenges.”<br /><br /></div> <div>“We have needed to create new meeting places and forums that provide opportunities for increased dialogue. We have also created thematic calls in response to the needs of industry, government agencies and research funders.”</div> <div><br /></div> <div>“As development goes faster and faster, we have seen a tendency for transport research to be characterized by short-term projects. The short-term perspective entails a risk that we stress research and development and do not have time to work with fundamental research in the new research areas. New research must have a chance to mature and it is important to work actively for a long-term perspective in the education of engineers and PhDs.”</div> <div><br /></div> <div><strong>What will be your focus going forward?</strong></div> <div><strong><br /></strong></div> <div>“I have had a lot of fun in my role as Director of Transport Area of Advance during these six years, but I also think it is useful to change perspectives and assignments from time to time.”</div> <div><br /></div> <div>“In addition to my regular position as a professor of Computational Fluid Dynamics, I have already got a few new assignments. Since last autumn, I am Assistant Head of Department at the Department of Mechanics and Maritime Sciences. There, my experience and the network from the assignment as a Director of Transport Area of Advance will be very useful. In collaboration with the industry, I will also continue to work with long-term funding for vehicle research.”</div> <div><br /></div> <div>“Additionally, I will continue to work with gender equality, including in Chalmers Genie initiative (Gender Initiative for Excellence), after the mentoring program for senior female researchers at Chalmers that I have been involved in and initiated”, says Sinisa Krajnovic.</div> <div><br /></div> <div><em>On 1 April 2022, Sinisa Krajnovic is succeeded by Balázs Kulcsár in the position as Director of Transport Area of Advance. </em><br /><br />Text: Linda Wallgren Jirvén</div> <div><br /></div>Wed, 23 Mar 2022 13:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/New-Covid-research-Face-masks-play-a-crucial-role.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/New-Covid-research-Face-masks-play-a-crucial-role.aspxNew Covid research: Face masks play a crucial role<p><b>​An international research team from universities including Chalmers University of Technology, Sweden, the University of Padua and the University of Udine in Italy, and the University of Vienna, Austria, has developed a new theoretical model to better assess the risks of spreading viruses such as Covid-19 – with and without a face mask. The results show how the standard ‘safe’ distance of two meters does not always apply but varies greatly depending on a range of environmental factors, and that face masks can indeed play a crucial role. ​</b></p><span style="background-color:initial">The current recommendations and understanding around the transmission of respiratory infectious diseases are often based on a diagram developed by the American scientist William Firth Wells in 1934.. But this model is very simplified and does not account for the true complexity of transmission. <br /><br /></span><div>Now, in the new study <a href="https://doi.org/10.1098/rsif.2021.0819">“Modelling the direct virus exposure risk associated with respiratory events”</a>, the researchers developed a more advanced model to show that it is possible to more efficiently calculate the direct risk of spreading Covid infection by including a number of factors, such as interpersonal distance, temperature, humidity levels, viral load and type of exhalation. They also managed to demonstrate how these risks change with and without a face mask.<br /><br /></div> <div>The study revealed, for example, that a person talking without a face mask can spread infected droplets one meter away. Should the same person cough, the drops can be spread up to three meters and if the person sneezes, the spread distance can be up to seven meters. But using a face mask, the risk of spreading the infection decreases significantly.</div> <div><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/gaetanosardina_jpg.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:200px;height:200px" /><br /></div> <div><span style="background-color:initial">“If you wear a surgical mask or an FFP2 mask*, the risk of infection is reduced to such an extent that it is </span><span style="background-color:initial">practically negligible – even if you’re only standing one meter away from an infected person,” explains Gaetano Sardina, Associate Professor of Fluid Mechanics at the Department of Mechanics and Maritime Sciences at Chalmers University of Technology, who is one of the researchers behind the study.</span></div> <div><br /></div> <div>In the study, published in the &quot;Journal of the Royal Society Interface&quot;, the researchers tested the new model using data from recent numerical experiments on droplet emissions. This allowed them to take several factors into account and quantify the risk of infection, with and without a face mask.<br /></div> <h2 class="chalmersElement-H2">Size a factor in droplet behavior </h2> <div>Viruses, such as SARS-COV-2, are spread from an infected individual to other susceptible individuals through virus-filled droplets that are released when talking, coughing, or sneezing. Droplets emitted from the salivary glands are sprayed out through the exhaled air. Once out of the mouth, these drops can either evaporate, settle or remain floating. Larger and heavier droplets tend to fall in a ballistic motion before evaporating, while smaller droplets behave like aerosols that spray and remain airborne. <br /></div> <div><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/Droplet%20behaviour.png" alt="" style="margin:5px;width:400px;height:279px" /><br /><br /><br /></div> <div>The results show that a surgical face mask and, to an even greater extent, an FFP2 mask provide excellent protection that significantly reduces the risk of infection. Provided that the face mask is worn correctly, the risk of infection is negligible even at distances as short as one meter, regardless of environmental conditions and if the person is talking, coughing or sneezing. <br /></div> <h2 class="chalmersElement-H2">Next step – a study on airborne spread </h2> <div>With this study complete, the research team is now already working on a new study aiming to explore the airborne spread of the disease. </div> <div><br /></div> <div>“The published study addresses direct droplet transmission of Covid – another important transmission path is the indirect and airborne route in poorly ventilated rooms. We are currently working on this aspect and our preliminary results show the effectiveness of face masks is also preventing the airborne spread of the disease”, says Gaetano Sardina.<br /><br /></div> <div>The international study was led by the University of Padua, Italy, and conducted in collaboration with Chalmers University of Technology, the University of Udine, Italy, and the University of Vienna, Austria.<br /><br /></div> <div>Read the study <a href="https://doi.org/10.1098/rsif.2021.0819">Modelling the direct virus exposure risk associated with respiratory events ​</a>published in the Journal of the Royal Society Interface.<br /><br /></div> <div>*​FFP stands for “filtering face piece” and is a European standard for mask efficiency, ranging from 1, the lowest grade, to 3, the highest. These disposable masks have several layers of different fabrics, including a polypropylene filter, that can trap the even the smallest airborne particles. ​<br /><br /></div> <div><strong>For more information, contact: </strong></div> <div>Gaetano Sardina<span style="white-space:pre"> </span></div> <div>Associate Professor, Division of Fluid Dynamics, Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Sweden</div> <div>sardina@chalmers.se</div> <div>+46 31 772 1417</div> ​<div>Text: Lovisa Håkansson and Mia Halleröd Palmgren</div>Fri, 04 Mar 2022 07:00:00 +0100https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/the-allwise-alvis.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/the-allwise-alvis.aspx​Time to inaugurate all-wise computer resource<p><b>​Alvis is an old Nordic name meaning &quot;all-wise&quot;. An appropriate name, one might think, for a computer resource dedicated to research in artificial intelligence and machine learning. The first phase of Alvis has been used at Chalmers and by Swedish researchers for a year and a half, but now the computer system is fully developed and ready to solve more and larger research tasks.​</b></p><br /><div><img src="/SiteCollectionImages/Areas%20of%20Advance/Information%20and%20Communication%20Technology/300x454_Alvis_infrastructure_1.png" alt="A computer rack" class="chalmersPosition-FloatRight" style="margin:10px;width:270px;height:406px" />Alvis is a national computer resource within the <strong><a href="https://www.snic.se/">Swedish National Infrastructure for Computing, SN​IC,</a></strong> and started on a small scale in the autumn of 2020, when the first version began being used by Swedish researchers. Since then, a lot has happened behind the scenes, both in terms of use and expansion, and now it's time for Chalmers to give Swedish research in AI and machine learning access to the full-scale expanded resource. The digital inauguration will take place on <span style="font-weight:normal"><a href="/en/areas-of-advance/ict/calendar/Pages/Alvis-inauguration-phase-2.aspx">February 25, 202</a>2.</span></div> <div><br /></div> <div><b>What can Alvis contribute to, then? </b>The purpose is twofold. On the one hand, one addresses the target group who research and develop methods in machine learning, and on the other hand, the target group who use machine learning to solve research problems in basically any field. Anyone who needs to improve their mathematical calculations and models can take advantage of Alvis' services through SNIC's application system – regardless of the research field.</div> <div><span style="background-color:initial">&quot;Simply put, Alvis works with pattern recognition, according to the same principle that your mobile uses to recognize your face. What you do, is present very large amounts of data to Alvis and let the system work. The task for the machines is to react to patterns - long before a human eye can do so,&quot; says <b>Mikael Öhman</b>, system manager at Chalmers e-commons.</span><br /></div> <div><br /></div> <h3 class="chalmersElement-H3">How can Alvis help Swedish research?</h3> <div><b>Thomas Svedberg</b> is project manager for the construction of Alvis:</div> <div>&quot;I would say that there are two parts to that answer. We have researchers who are already doing machine learning, and they get a powerful resource that helps them analyse large complex problems.</div> <div>But we also have those who are curious about machine learning and who want to know more about how they can work with it within their field. It is perhaps for them that we can make the biggest difference when we now can offer quick access to a system that allows them to learn more and build up their knowledge.&quot;</div> <div><br /></div> <div>The official inauguration of Alvis takes place on February 25. It will be done digitally, and you will find all <a href="/en/areas-of-advance/ict/calendar/Pages/Alvis-inauguration-phase-2.aspx">information about the event here.</a></div> <div><br /></div> <h3 class="chalmersElement-H3">Facts</h3> <div>Alvis, which is part of the national e-infrastructure SNIC, is located at Chalmers. <a href="/en/researchinfrastructure/e-commons/Pages/default.aspx">Chalmers e-commons</a> manages the resource, and applications to use Alvis are handled by the <a href="https://www.snic.se/allocations/snac/">Swedish National Allocations Committee, SNAC</a>. Alvis is financed by the <b><a href="https://kaw.wallenberg.org/">Knut and Alice Wallenberg Foundation</a></b> with SEK 70 million, and the operation is financed by SNIC. The computer system is supplied by <a href="https://www.lenovo.com/se/sv/" target="_blank">Lenovo​</a>. Within Chalmers e-commons, there is also a group of research engineers with a focus on AI, machine learning and data management. Among other things, they have the task of providing support to Chalmers’ researchers in the use of Alvis.</div> <div> </div> <h3 class="chalmersElement-H3">Voices about Alvis:</h3> <div><b>Lars Nordström</b>, director of SNIC: &quot;Alvis will be a key resource for Swedish AI-based research and is a valuable complement to SNIC's other resources.&quot;</div> <div><br /></div> <div><span style="background-color:initial"><strong>Sa</strong></span><span style="background-color:initial"><strong>ra Mazur</strong>, Director of Strategic Research, Knut and Alice Wallenberg Foundation: &quot;</span>A high-performing national computation and storage resource for AI and machine learning is a prerequisite for researchers at Swedish universities to be able to be successful in international competition in the field. It is an area that is developing extremely quickly and which will have a major impact on societal development, therefore it is important that Sweden both has the required infrastructure and researchers who can develop this field of research. It also enables a transfer of knowledge to Swedish industry.&quot;<br /></div> <div><br /></div> <div><b>Philipp Schlatter</b>, Professor, Chairman of SNIC's allocation committee Swedish National Allocations Committee, SNAC: &quot;Calculation time for Alvis phase 2 is now available for all Swedish researchers, also for the large projects that we distribute via SNAC. We were all hesitant when GPU-accelerated systems were introduced a couple of years ago, but we as researchers have learned to relate to this development, not least through special libraries for machine learning, such as Tensorflow, which runs super fast on such systems. Therefore, we are especially happy to now have Alvis in SNIC's computer landscape so that we can also cover this increasing need for GPU-based computer time.&quot;</div> <div><br /></div> <div><strong>Scott Tease</strong>, Vice President and General Manager of Lenovo’s High Performance Computing (HPC) and Artificial Intelligence (AI) business: <span style="background-color:initial">“Lenovo </span><span style="background-color:initial">is grateful to be selected by Chalmers University of Technology for the Alvis project.  Alvis will power cutting-edge research across diverse areas from Material Science to Energy, from Health care to Nano and beyond. </span><span style="background-color:initial">Alvis is truly unique, built on the premise of different architectures for different workloads.</span></div> <div>Alvis leverages Lenovo’s NeptuneTM liquid cooling technologies to deliver unparalleled compute efficiency.  Chalmers has chosen to implement multiple, different Lenovo ThinkSystem servers to deliver the right NVIDIA GPU to their users, but in a way that prioritizes energy savings and workload balance, instead of just throwing more underutilized GPUs into the mix. Using our ThinkSystem SD650-N V2 to deliver the power of NVIDIA A100 Tensor Core GPUs with highly efficient direct water cooling, and our ThinkSystem SR670 V2 for NVIDIA A40 and T4 GPUs, combined with a high-speed storage infrastructure,  Chalmers users have over 260,000 processing cores and over 800 TFLOPS of compute power to drive a faster time to answer in their research.”</div> <div><br /></div> <div><br /></div> <div><a href="/en/areas-of-advance/ict/calendar/Pages/Alvis-inauguration-phase-2.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" /></a><a href="/en/areas-of-advance/ict/calendar/Pages/Alvis-inauguration-phase-2.aspx">SEE INAUGURATION PROGRAMME​</a></div> <div><br /></div> <div><em>Text: Jenny Palm</em></div> <em> </em><div><em>Photo: Henrik Sandsjö</em></div> <div><em>​<br /></em></div> <div><em><img src="/SiteCollectionImages/Areas%20of%20Advance/Information%20and%20Communication%20Technology/750x422_Alvis_infrastructure_3_220210.png" alt="Overview computor" style="margin:5px;width:690px;height:386px" /><br /><br /><br /></em></div> <div><br /></div> <div><br /></div> ​Sun, 13 Feb 2022 00:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/New-summer-course-focusing-on-emissions-from-transportation.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/New-summer-course-focusing-on-emissions-from-transportation.aspxNew summer course focusing on emissions from transportation<p><b>​​Emissions from traffic cause great damage to both the environment as well as human health. Chalmers’ new summer course &quot;Emissions from transportation&quot; wishes to equip society – students, engineers and politicians – with better knowledge on how to build a sustainable transport system for the future. </b></p>​<span style="background-color:initial">Today, the transport system is absolutely vital for our society to function. At the same time, it’s necessary to minimize the harmful effects that the transport system has on the environment and human health. However, a future sustainable transport system requires a broad understanding of transport technology and its emissions. That is why Chalmers now launches a new summer course that provides an introduction to current transport technology and the various impacts from emissions.</span><div><span style="background-color:initial"><img src="/SiteCollectionImages/Institutioner/M2/Personal/Jonas%20Sjöblom%20NYNY.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;height:200px;width:200px" /></span><div>&quot;This course is about air pollution that in Sweden alone causes nearly 8000 premature deaths – every year! Like half a pandemic, but continuously! Although the knowledge exists, far too little is done in this area. What we can do is to educate as many people as possible in the basics of emissions from transportation. It’s a very broad area, but very interesting,&quot; says Jonas Sjöblom, coordinator for the course.<br /></div> <h2 class="chalmersElement-H2">An interdisciplinary approach to societal problems</h2> <div>&quot;Emissions from transportation&quot; is an interdisciplinary course and is based on the so-called Tracks pedagogy, which gives participants the opportunity to gain new knowledge by tackling real and socially important problems together with project-based working methods. It’s a freestanding course and doesn’t require any programme enrollment, which opens up for a wider group of people to apply.<br /><br /></div> <div>&quot;Society is transforming at an extremely fast pace and we need to make sure to keep the course content up to date. This course enables for lifelong learning and for competence development in several areas for students and PhD students, as well as for engineers, high school teachers and policy-makers,&quot; says Jonas.<br /></div> <h2 class="chalmersElement-H2">Relevant to many</h2> <div>The course is held remotely and consists of pre-recorded lectures given by no less than 16 guest lecturers who will contribute with state-of-the-art knowledge and perspectives, most of whom belong to the Department of Mechanics and Maritime Sciences. Course coordinator Jonas Sjöblom, associate professor in Combustion and Propulsion Systems at the department, believes that the course content is beneficial to many, regardless of background.<br /><br /></div> <div>&quot;As an undergraduate student, you should take this course to better understand the world and to get inspired to continue studying. As a PhD student, you should take this course as a way to broaden your research, given that it’s related to transport. As a citizen, you should take this course for lifelong learning, as competence development or just because it’s interesting and fun!&quot;<br /><br /></div> <div><span style="font-weight:700">&quot;Emissions from transport&quot;</span> contains four blocks connected to air pollution:<br /><br /></div> <div>• The energy and transport system</div> <div>• Energy carriers (fuels, batteries)</div> <div>• Energy converters (especially internal combustion engines)</div> <div>• Social impact<br /><br /></div> <div>The course also includes a practical laboratory and a project that covers all four subject blocks. </div> <div>Application will be open from <strong>18 February</strong> to <span><strong>March 15</strong>, but will be kept open until the course is full.  </span><br /><br /></div> <div>Further information about the course and its content, as well as how to apply <a href="/en/education/continuing-education/Pages/Summer-courses.aspx">can be found here</a>.​ </div> <div>If you have questions about the course, please get in contact with course coordinator Jonas Sjöblom at <a href="mailto:%20jonas.sjoblom@chalmers.se">jonas.sjoblom@chalmers.se​</a><br /><br />The course is also offered within the framwork for Tracks: <br /><a href="https://student.portal.chalmers.se/en/chalmersstudies/tracks/Pages/current-courses-within-tracks.aspx">https://student.portal.chalmers.se/en/chalmersstudies/tracks/Pages/current-courses-within-tracks.aspx​</a><br /><br /></div> <div><span style="background-color:initial">Text: Lovisa Håkanson​</span><br /></div></div>Wed, 09 Feb 2022 00:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/TechForH2---for-a-sustainable-hydrogen-economy-of-tomorrow.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/TechForH2---for-a-sustainable-hydrogen-economy-of-tomorrow.aspxFor a sustainable hydrogen economy of tomorrow<p><b>​“Getting a node for vehicle research and hydrogen with its main focus in the western part of Sweden is fantastic. And it’s of course also great that we’ll now get a center that focuses on collaboration between different modes of transport,” says Tomas Grönstedt, coordinator of the competence center TechforH2, which now receives almost SEK 54 million from the Swedish Energy Agency in order to develop new technology in hydrogen propulsion as a step towards conversion to fossil freedom.</b></p>​<span style="background-color:initial">It was just before Christmas that the Swedish Energy Agency announced their large investments in centers that research sustainable energy systems. A total of SEK 600 million is to be distributed in grants to eleven different competence centers, of which more than half are based at Chalmers - as the main applicant in four cases and co-applicants in two. The centers’ overall purpose is to build knowledge and competence that accelerates the transition away from the fossil society and strengthens Sweden's competitiveness.</span><div><br /><span style="background-color:initial"></span><div>One of the competence centers that receives grants from the Swedish Energy Agency is TechForH2 at the Department of Mechanics and Maritime Studies, which receives almost SEK 54 million to develop new technology and innovations for the integration of hydrogen propulsion focused on heavier transports. The center's total budget, including funding from the industry and Chalmers, amounts to almost SEK 162 million over a five-year period in a first stage, with the possibility of extension for another five years.</div> <div><br /></div> <div>“Getting a node for vehicle research and hydrogen with its main focus in the western part of Sweden is fantastic. And it’s of course also great that we’ll now get a center that focuses on collaboration between different modes of transport. Personally, I’ve always enjoyed networking and seeking collaborations within the academy, it will be fun to be able to do this wholeheartedly,” says Tomas Grönstedt, professor of fluid dynamics at the Department of Mechanic and Maritime Studies and coordinator for TechForH2.</div> <h2 class="chalmersElement-H2">Hydrogen - for a fossil-free Sweden</h2> <div>To achieve Sweden's goal of zero net greenhouse gas emissions by 2045, a fossil-free transport system and renewable fuels are an absolute must. The focus so far has been mainly on the importance of electrification, especially in the automotive industry. But for heavier vehicles and trucks, which account for 30% of the transport system's total carbon dioxide emissions, electrification is somewhat trickier as it would entail a very large number of batteries to drive such heavy vehicles, which in turn comes with consequences in terms of weight, space and costs.</div> <div><br /></div> <div>Subsequently, there has been a need for research that develops new technical solutions that reduce greenhouse gases and harmful emissions, that aren’t dependent on fossil energy sources, and that, at the same time, answers to the needs of the truck industry and other industries that depend on heavy transport, such as aviation.</div> <div><br /></div> <div>With the Swedish Energy Agency's major investment in TechForH2, the hope is now to be able to contribute to knowledge building and education in the area, accelerate the introduction of new technology and thereby contribute to the transition to fossil freedom. More specifically, TechForH2's focus areas will include composites and lightweight structures for vehicle-integrated hydrogen storage and the manufacture and post treatment of metallic materials for, among other things, hydrogen use and sensors. Additionally, the center will further research on fuel cells and vehicle integration and technology/instruments and innovations in a future hydrogen society.</div> <h2 class="chalmersElement-H2">New recruitments on the way</h2> <div>TechForH2 is coordinated and led by Chalmers, which owns the center together with RISE. A number of industry partners are also involved in the centre's activities; Volvo, Scania, PowerCell, JohnsonMatthey, Oxeon, GKN Aerospace, Insplorion, Siemens Energy and Stena.<span style="background-color:initial">The</span><span style="background-color:initial"></span><span style="background-color:initial"> Swedish Energy Agency's investment in TechForH2 means that it's now facing a staff expansion. </span></div> <div><span style="background-color:initial"><br /></span></div> <div> “With this funding, we’ll be able to recruit nine new PhD students. In addition, the Transport Area of Advance is contributing with a number of post-docs specialized in hydrogen use to co-finance Chalmers' operations, while partners from the industry contribute with their own operations to the same extent,” says Tomas Grönstedt.</div> <div><br /></div> <div>For more info about TechForH2, please contact <a href="/en/Staff/Pages/tomas-gronstedt.aspx">Tomas Grönstedt​</a>, coordinator of TechForH2</div> ​<br />Text: Lovisa Håkansson</div>Wed, 26 Jan 2022 00:00:00 +0100