News: Research Video related to Chalmers University of TechnologyMon, 01 Jun 2020 10:12:48 +0200 saves Swedish water from oil leakage<p><b>​Some of the 30 most environmentally hazardous wrecks in Swedish water have been investigated and recovered on 360,000 litres of oil during 2017-2019. To prioritize among the wrecks and carry out oil recovery operations where they are most useful, the Swedish Agency for Marine and Water Management (SwAM) has used the risk assessment tool VRAKA, which was developed by Chalmers.</b></p><p>​There are about 17 000 shipwrecks along the coasts of Sweden and the Swedish Maritime Administration, in collaboration with among others Chalmers and SwAM classified 300 of them as hazardous for the environment. About 30 of the shipwrecks pose an acute environmental threat. They contain large amounts of oil that may leak. Shipwrecks leaking oil pose risk to marine life in Swedish waters. Organisms living in the vicinity of the shipwreck are mainly affected but the oil can also spread to other areas with the water currents. </p> <p><br /></p> <p>SwAM has since 2016 had the responsibility to coordinate the investigations and the recovery of oil and ghost nets (old fishing gear that has remained in the sea and lakes that can continue to fish and catch birds, and other marine animals) from shipwrecks. With the help of Chalmers model, they have been able to prioritize among the wrecks. </p> <p><br /></p> <p>“Before we decide which shipwreck to be recovered from oil, we can use the model to estimate the probability of a leak, the volume of oil in the wreck and where the oil is likely to end up in case of an oil leakage” says Fredrik Lindgren, an analyst at SwAM who previously worked on VRAKA during his doctoral studies at Chalmers. </p> <p></p> <h2 class="chalmersElement-H2"><span>To date, 360,000 litres of oil have been </span><span>recovered </span></h2> <p></p> <p><span style="background-color:initial">Since 2017, the model has been used for investigation and oil recovery operations of the six wrecks Thetis, Skytteren, Sandön, Hoheneichen, Lindesnäs and Finnbirch. They are all close to sensitive natural areas where oil leaks could have major, negative impacts on the environment, outdoor life and tourism. </span></p> <p><span style="background-color:initial"><br /></span></p> <p><span style="background-color:initial">Sandön and Hoheneichen proved to be empty of oil but from Thetis, Lindesnäs and Finnbirch they managed to recover a total of about 360,000 litres of oil and a large amount of ghost net. From Thetis, they also manage to recover 12 tonnes of purse seine (a kind of fishing gear) and during the recovery operation of Lindesnäs, a 46-meter long ghost net was found which was stuck to the wreck. The ghost net was recovered and left ashore for recycling or destruction. </span></p> <p><span style="background-color:initial"><br /></span></p> <p><span style="background-color:initial">The purpose of the investigation of Skytteren was, among other things, to get data to VRAKA for assessment. SwAM's assessment, however, was that an oil recovery operation is very likely to cost more than SwAM's annual budget for environmentally hazardous shipwrecks in Swedish waters. SwAM has requested funding from the government to increase the budget during a financial year, so that they can recover oil from Skytteren as well. </span></p> <p><span style="background-color:initial"><br /></span></p> <p><span style="background-color:initial">From 2018, SwAM was granted SEK 25 million per year until 2027 for research and oil recovery operations. Starting in 2020, the budget is SEK 30 million per year. VRAKA made the funding possible. Carrying out oil recovery operations is costly, from five to hundreds of millions. It is important to make qualified assessments of which wrecks that should be prioritized for oil recovery operations. VRAKA made the prioritization possible and SwAM can now use the funds to make the greatest environmental benefit by removing the threats to the environment from the wrecks that pose the greatest risk.</span></p> <p><span style="background-color:initial"><br /></span></p> <p><span style="background-color:initial"><img src="/SiteCollectionImages/Institutioner/M2/Nyheter/eulogo.jpg" class="chalmersPosition-FloatLeft" alt="Logotypes from the EU" style="margin:5px" /><br /><br /><br /></span></p> <p></p>Fri, 29 May 2020 08:00:00 +0200 avoids collisions with self-driving cars<p><b>​In order for self-driving cars to be safe, they must be able to communicate with each other.</b></p>​<span style="background-color:initial">Using drones and algorithms, <a href="/sv/personal/Sidor/olafl.aspx">Olaf Landsiedel</a> and his researchers are developing the technology.</span><div><br /></div> <div>The film is produced by <strong>the Swedish Foundation for Strategic Research, SSF</strong>.</div> Fri, 07 Jun 2019 00:00:00 +0200–-the-transport-solution-for-the-future-with-new-materials.aspx cell – the transport solution for the future with new materials<p><b>​So far, the fuel cell has been too expensive to break through as an energy and transport solution.</b></p><a href="/sv/personal/redigera/Sidor/Anna-Martinelli.aspx">​Anna Martinelli</a> and her research team are developing new materials that can make the cell more efficient and cheaper.<div><br /></div> <div>The film is produced by <strong>the Swedish Foundation for Strategic Research, SSF</strong>.​</div>Mon, 20 May 2019 10:00:00 +0200 little and few particles can a sensor detect?<p><b>​The presence of specific biological molecules in the blood can indicate disease. To be able to diagnose at an early stage, one wants to be able to measure a few of these. Therefore, super-efficient sensors are required.</b></p><div><a href="/sv/personal/redigera/Sidor/Christoph-Langhammer.aspx">Christoph Langhammer</a> and his team of researchers are developing nanosensors.</div> <div><br /></div> <div>The film is produced by <strong>the Swedish Foundation for Strategic Research, SSF</strong>.</div> Mon, 13 May 2019 10:00:00 +0200 losses reduced with new cable technology<p><b>​DC cables have little energy losses and carry electric current long distances more efficiently than AC cables. But to be able to use DC cables more, better insulation is needed around the cables.</b></p>​That is what <span style="background-color:initial"><a href="/sv/personal/Sidor/Christian-Müller.aspx">Christian Müller</a> and his team of researchers are developing.</span><div><br /></div> <div>The film is produced by <strong>the Swedish Foundation for Strategic Research, SSF</strong>.</div> Mon, 11 Mar 2019 00:00:00 +0100 mathematical proofs make software safer<p><b>​​Self-driving cars, bank apps, and pacemakers. As a society we depend more and more on software, but how can we make sure that software always works? Magnus Myreen and his colleagues at the department of Computer Science and Engineering investigate how to mathematically prove that an application is working correctly.</b></p>”The research I am doing aims to produce software that is as reliable as possible so that in the future we can build even more complex software.”<br /><br />Our mobile phones and computers contain a lot of private information. One important aspect of the research project is to make sure that applications don’t leak sensitive information.<br /><br />”If you have a banking app on your phone, and you also have some game, you don’t want the game to be able to tap in to your bank account.”<br /><br />Instead of testing the software the research team uses mathematics to prove the software is always working to its specification. <br /><br /><a href="">Click here to learn more in SSF's ”Future research leaders” video &gt;</a><br /><br /><em>The Swedish Foundation for Strategic Research, SSF, supports research in science, engineering and medicine for the purpose of strengthening Sweden´s future competitiveness.  SSF provided funding of around SEK 600 million per annum and has a capital of approximately 11 billion as a basis for its activities.</em><br />Tue, 19 Feb 2019 00:00:00 +0100 Nobel Laureate in Chemistry<p><b>​One of this year&#39;s Nobel Laureates in chemistry, Richard Henderson, met a doctoral student and a master student at Chalmers University of Technology when he visited Gothenburg to hold an open lecture at the university.</b></p><p class="MsoNormal">Doctoral student Cecilia Fager and master student Gustav Persson had an opportunity to talk with Richard Henderson about where he received his inspiration, cryoelectron microscopy and what advice he has for young researchers.<br /><br /> <a href="">Richard Henderson</a> shared the Nobel Prize in Chemistry 2017 with Jacques Dobochet and Joachim Frank for developing cryo-electron microscopy for the high-resolution structure determination of biomolecules in solution. <a href="/sv/personal/Sidor/fagerc.aspx">Cecilia Fager </a>is a PhD student at Eva Olsson Group at the Department of Physics and uses electron microscopy in her research. Gustav Persson takes the master's program Applied Physics and works simultaneously in the Eva Olsson Group.<br /><br /> See the interview above or at <a href="">Chalmers University of Technology Youtubechannel</a>.</p> Wed, 20 Dec 2017 00:00:00 +0100 crucial for transitioning to a sustainable society<p><b>​How do we successfully transition to a sustainable society, as fast as the climate requires? It’s complex, and many categories need to take action – politicians, companies and researchers. They all met at the 8th International Sustainability Transitions conference at Chalmers in June 2017.</b></p>​​Nearly all the countries in the world have subscribed to the vision of a sustainable future. But how do we achieve it? What obstacles are in the way? What roles should various players have, and how do we make the transition go fast enough? <br /><br />At the 8th International Sustainability Transitions Conference, hosted by Chalmers, scientists, politicians, organisations, and industry representatives addressed these questions. Watch the video above to hear some prominent voices from the conference.<br /><br />Read more:<br /><a href="/en/areas-of-advance/energy/joint_initiatives/Pages/Chalmers-Initiative-in-Innovation-and-Sustainability-Transitions.aspx">Sustainability transitions research at Chalmers</a><br /><a href="">8th International Sustainability Transitions Conference</a><br /><br />Video: Torgil Störner and Ingela RoosThu, 22 Jun 2017 00:00:00 +0200 video with Åsa Haglund on blue lasers<p><b>​Åsa Haglund, associate professor at the Photonics Laboratory at MC2, talks on her research on blue lasers in a new video published by the Swedish Foundation for Strategic Research (SSF). SSF is also funding Åsa Haglund&#39;s research as well.</b></p><p>​Blue light – that is what Åsa Haglund her researchers at Chalmers aim to create. In 2014, the Nobel Prize in physics was awarded to the invention of blue light emitting diodes used as bright, low energy sources of white light, a good replacement for the old energy guzzling incandescent light bulbs. However, Åsa Haglund wants to take it one step further.</p> <p>&quot;What we a<span></span>re interested in is whether it is possible to use laser-based lightning instead of LED lamps. LED lamps are very good, they are very energy efficient when you are not trying to get a lot of light from them. But you do want quite a lot of light from a lamp , so in order to get more light from the LED lamp you have to add a lot more current. However, in doing so, the efficiency drops dramatically, perhaps as much as from 80 percent to 40 percent&quot;, Åsa Haglund says in the video from SSF.<br /><br />Åsa Haglund is a member of the SSF career development programme for future research leaders, and funded with 6 MSEK for 2014-2019. Hear her tell more about her research, and future applications of the blue laser light, in the six minute film.</p>Fri, 09 Jun 2017 09:00:00 +0200 cars negotiating their way through the intersection<p><b>​In the video above we see three cars heading for an intersection, at a speed of 50 km/h, and passing the intersection almost simultaneously. The self-driving cars are initially on a collision course, but negotiate with each other and adjust their speeds to avoid collisions and maximize the traffic flow.</b></p>​ <br />Intersections are particularly challenging and dangerous in today’s traffic system. A large number of cars need to share the same crossing and, to avoid accidents, traffic lights, signs and rules are necessary. Unfortunately, this causes the traffic flow to slow down and queues to arise, and fuel consumption to increase. With communicating self-driving vehicles there is a great potential for improvement and many problems could be alleviated.<br /><br />The demonstration shown in the video is conducted at the AstaZero test track by a group of researchers from Chalmers. When the self-driving vehicles approach the intersection, they communicate with the other vehicles and a joint decision is taken on how to cross the intersection in an optimal way.<br /><br />&quot;Today's traffic system is both accident-prone and inefficient. Often the vehicles are forced to halt unnecessary. With our method, we can automatically find the most energy efficient and safe solution. For example, a smaller vehicle would accelerate through the intersection in order to avoid slowing down a truck”, says Robert Hult, researcher at the Electrical Engineering Department.<br /><br />The decision-making process is very fast and is repeated as the cars approach the intersection to adapt to unforeseen events. The demonstration is developed to promote efficient traffic flow and the method is scalable and can be applied to more than three cars.<br /><br />What does it feel like sitting in a self-driving car passing another car with such small margins?<br />&quot;The passenger's experience must of course be taken into account, and although the comfort was very good, the crossing felt a little tight at first. After a couple of times, however, it became quite natural&quot;, says Mario Zanon, researcher at the Department of Electrical Engineering.<br /><br />The research involves several research groups at Chalmers, and is partly performed within the research project Copplar. Copplar stands for Campus Shuttle cooperative perception and planning platform, which aims to develop a self-driving vehicle for city traffic, regardless of weather conditions, which can be run between Chalmers two campuses Johanneberg and Lindholmen.<br /> <br /><br /><strong>The results have been published:</strong><br /><a href="" target="_blank">Primal decomposition of the optimal coordination of vehicles at traffic intersections</a><br />Robert Hult; Mario Zanon; Sébastien Gros; Paolo Falcone, Chalmers University of Technology<br /><br /><a href="" target="_blank">An Asynchronous Algorithm for Optimal Coordination at Traffic Intersections</a><br />Mario Zanon; Sébastien Gros; Paolo Falcone; Henk Wymeersch, Chalmers University of Technology<br /> <br /><br />The research has been funded by VR, the Swedish Research Council, FFI, Strategic Vehicle Research and Innovation, Vinnova grant no 2015-03075, the research project Copplar, and Chalmers Area of Advance Transport. The demonstration was carried out with support from Volvo Cars, Fengco Real Time Control and Leica Geosystems.<br /><br /><strong>Contact:</strong><br />Department of Electrical Engineering, Division of Systems and Control<br />Robert Hult, PhD student, <a href=""></a><br />Mario Zanon, Postdoc, <a href=""></a><br />Sébastien Gros, Associate Professor, <a href=""></a><br />Paolo Falcone, Associate Professor, <a href=""></a>Tue, 16 May 2017 10:00:00 +0200 Delsing in new tv show<p><b>​Per Delsing, well-known professor in experimental physics at MC2, stars in the first episode of the new science show &quot;Researchers for the future&quot; (&quot;Forskare för framtiden&quot;), which premiered on Sveriges Television (SVT) on 10 May.</b></p>​<img src="/SiteCollectionImages/Institutioner/MC2/News/pdelsing_urplay_170510_665x330_adj.jpg" alt="" style="margin:5px" /><br /><br />Per Delsing explains the twin paradox, and reveals how his own interest for science and technology once were born and tells about other research interests. <br />&quot;When I was nine, ten years old, I watched on tv how they landed on the moon, and I thought it was so amazing. That's when I decided that I wanted to work with technology and science&quot;, he says in the programme.<br />The 7 minute long programme also features scenes filmed in the Nanofabrication Laboratory, guided by Per Delsing.<br />The series is produced in Swedish by the Swedish Educational Broadcasting Company (UR).<br /><br />Text: Michael NyståsMon, 15 May 2017 09:00:00 +0200 optimist dinghy proves it can fly<p><b>​Students and researchers at Chalmers and SSPA have together designed and developed an optimist dinghy with supreme capabilities. By using a carbon fibre  composite with added graphene, the hull is made stronger and lighter. Hydrofoils are added to lift the boat, decreasing drag and allowing greater speeds. After tests performed in SSPAs towing tank, the dinghy was ready to be tried out at sea for the first time.</b></p>​A relatively new occurrence within the sailing world is to mount hydrofoils on small sailing dinghies. Chalmers and SSPA wanted the challenge to do this on “the world´s least advanced sailboat” – the optimist dinghy. The main question and problem for the students and the researchers of this project has been: can an optimist foil and how will this be done? <br /> <br />The optimist dinghy has, since it was conceived in 1947, become one of the world’s most popular sailing dinghies, with over 150 000 boats registered. The boat, only 2.3 metres in length and with a sail area of 3.3 square metres, is normally limited to speeds below 4 knots. <br /> <br />However, by building the boat in carbon fibre and graphene, and fitting it with hydrofoils lifting the hull out of the water, the hydrodynamic resistance can be reduced dramatically. <br /> <br />The hydrofoils, constructed and tested at SSPA, allowed the optimist dinghy to sail as fast as the wind in the recently conducted sea trials, achieving a maximum boat speed of 12 knots in only 12 knots of wind.<br /><br />Watch a video about <a href="">the premiere of the foiling optimist</a><br /><br /><strong>For more information, please contact:</strong><br />Christian Finnsgård, +46- 31 772 9156, mobile +46-730729156, <a href=""></a>Fri, 07 Apr 2017 00:00:00 +0200 interviewing Nobel Prize Winner Sir James Fraser Stoddart<p><b>​VIDEO: Two undergraduate students, Ellen and Vincent, got the opportunity to meet the 2016 Nobel Laureate  in chemistry, Sir James Fraser Stoddart at his visit to Chalmers.</b></p><p>​<span>Their talk was about dedication and passion for research, and anecdotes from an impressive career in the field of chemistry.<br /> <br />PARTICIPANTS: Sir James Fraser Stoddart Nobel laureate in Chemistry in 2016, Chalmers students Ellen Augustsson and Vincent Ssenteza<span style="display:inline-block"></span><span style="display:inline-block"></span></span></p>Fri, 16 Dec 2016 15:00:00 +0100 low energy light to high energy light<p><b>​​Damir Dzebo defends his PhD- thesis September 28. Here he explains his research in up-conversion of green light to blue light, which may be of great value for solar energy technology.</b></p><p></p> <p>Dissertation date: 2016-09-28<br />Location: KA, Chemistry building <br />Time: 13:00-15:00 <br /></p>Fri, 16 Sep 2016 00:00:00 +0200 Jelena Lovric<p><b>​​Jelena Lovric, PhD Student at the Department of Chemistry and Chemical Engineering explains what her research is about.</b></p>The name of the thesis is <a href="">Probing secretory vesicles and liposome model systems using nanoscale electrochemistry and mass spectrometry</a> and has been supervised by prof. Andrew Ewing. <br /><br />Dissertation date: 2016-09-29<br />Location: FB, Physics building <br />Time: 10:00-12:00 Fri, 16 Sep 2016 00:00:00 +0200