News: KoMhttp://www.chalmers.se/sv/nyheterNews related to Chalmers University of TechnologyWed, 17 Apr 2019 11:02:15 +0200http://www.chalmers.se/sv/nyheterhttps://www.chalmers.se/en/departments/physics/news/Pages/Tailor-made-materials-with-ultrafast-connections.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Tailor-made-materials-with-ultrafast-connections.aspxTailor-made materials with ultrafast connections<p><b>Through magic twist angles and unique energy states, it is possible to design tailor-made, atomically thin materials that could be invaluable for future electronics. Now, researchers at Chalmers University of Technology, Sweden, and Regensburg University in Germany have shed light on the ultrafast dynamics in these novel materials. The results were recently published in the prestigious journal Nature Materials.​​​</b></p><div><div>Imagine you are building an energy-efficient and super-thin solar cell. You have one material that conducts current and another that absorbs light. You must therefore use both materials to achieve the desired properties, and the result may not be as thin as you hoped.</div> <div><br /></div> <div>Now imagine instead that you have atomically thin layers of each material, that you place on top of each other. You twist one layer towards the other a certain amount, and suddenly a new connection is formed, with special energy states – known as interlayer excitons – that exist in both layers. You now have your desired material at an atomically thin level.</div> <div><br /></div> <div>Ermin Malic, researcher at Chalmers University of Technology, in collaboration with German research colleagues around Rupert Huber at Regensburg University, has now succeeded in showing how fast these states are formed and how they can be tuned through twisting angles. Stacking and twisting atomically thin materials like Lego bricks, into new materials known as ‘heterostructures’, is an area of research that is still at its beginning.</div></div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/ErminMalic_190415_05_350xwebb.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" /><div>“These heterostructures have tremendous potential, as we can design tailor-made materials. The technology could be used in solar cells, flexible electronics, and even possibly in quantum computers in the future,” says Ermin Malic, Professor at the Department of Physics at Chalmers.</div> <div><br /></div> <div>Ermin Malic and his doctoral students Simon Ovesen and Samuel Brem recently collaborated with researchers at Regensburg University. The Swedish group has been responsible for the theoretical part of the project, while the German researchers conducted the experiments. For the first time, with the help of unique methods, they succeeded in revealing the secrets behind the ultrafast formation and dynamics of interlayer excitons in heterostructure materials. They used two different lasers to follow the sequence of events. By twisting atomically thin materials towards each other, they have demonstrated that it is possible to control how quickly the exciton dynamics occurs.</div> <div><br /></div> <div>“This emerging field of research is equally fascinating and interesting for academia as it is for industry,” says Ermin Malic. He leads the Chalmers Graphene Centre, which gathers research, education and innovation around graphene, other atomically thin materials and heterostructures under one common umbrella.</div> <div><br /></div> <div>These kinds of promising materials are known as two-dimensional (2D) materials, as they only consist of an atomically thin layer. Due to their remarkable properties, they are considered to have great potential in various fields of technology. Graphene, consisting of a single layer of carbon atoms, is the best-known example. It is starting to be applied in industry, for example in super-fast and highly sensitive detectors, flexible electronic devices and multifunctional materials in  automotive, aerospace and packaging industries.</div> <div><br /></div> <div>But graphene is just one of many 2D materials that could be of great benefit to our society. There is currently a lot of discussion about heterostructures consisting of graphene combined with other 2D materials. In just a short time, research on heterostructures has made great advances, and the journal Nature has recently published several breakthrough articles in this field of research. </div> <div><br /></div> <div>At Chalmers, several research groups are working at the forefront of graphene. The Graphene Centre is now investing in new infrastructure in order to be able to broaden the research area to include other 2D materials and heterostructures as well.</div> <div><br /></div> <div>“We want to establish a strong and dynamic hub for 2D materials here at Chalmers, so that we can build bridges to industry and ensure that our knowledge will benefit society,” says Ermin Malic.</div></div> <div>​<br /></div> <div></div> <div><span style="background-color:initial">Text and image: Mia Halleröd Palmgren, </span><a href="mailto:mia.hallerodpalmgren@chalmers.se">mia.hallerodpalmgren@chalmers.se</a><br /></div> <div>Translation to English: Joshua Worth,<a href="mailto:%20joshua.worth@chalmers.se"> joshua.worth@chalmers.se</a></div> <div><br /></div> <div>Read the scientific paper <span style="background-color:initial"><a href="https://www.nature.com/articles/s41563-019-0337-0">Ultrafast transition between exciton phases in van der Waals heterostructures</a> </span><span style="background-color:initial">in Nature Materials.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><div><a href="https://idw-online.de/en/news713803"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the press release from Regensburg University, Germany. </a></div> <div><br /></div> <div><a href="/sv/centrum/graphene/Sidor/default.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about the Graphene Centre at Chalmers (GCC)</a></div> <span style="background-color:initial"></span></div> <div><br /></div> <h3 class="chalmersElement-H3">For more information: </h3> <div><a href="/sv/personal/Sidor/ermin-malic.aspx">Ermin Malic,​</a> Professor, Department of Physics and Director of the Graphene Centre, Chalmers University of Technology, Sweden, +46 31 772 32 63, +46 70 840 49 53, <a href="mailto:ermin.malic@chalmers.se">ermin.malic@chalmers.se​</a></div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/F/750x340/SamuelBremErminMalic_20190415_bannerwebb.jpg" alt="" style="margin:5px" /><br />Professor Ermin Malic (to the right) and his doctoral students Samuel Brem (left) and <span style="background-color:initial">Simon Ovesen (not pictured) r</span><span style="background-color:initial">ecently collaborated with researchers at Regensburg University. The Swedish group has been responsible for the theoretical part of the project, while the German researchers conducted the experiments.</span><span style="background-color:initial"> </span><span style="background-color:initial">​</span></div> <span></span><div><span style="background-color:initial"></span></div>Wed, 17 Apr 2019 07:00:00 +0200https://www.chalmers.se/en/departments/e2/news/Pages/Smarter-charging-is-key-to-electromobility.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/Smarter-charging-is-key-to-electromobility.aspxSmarter charging is key to electromobility<p><b>​For electric vehicles to be implemented on a large ​scale, smart solutions for charging are required. Currently, development of digital systems is under way that in real time will control and distribute the available power, depending on such factors as how much each driver is prepared to pay, and how fast the vehicle must be fully charged for the next trip.</b></p>​<img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Smartare%20laddning%20nyckeln%20till%20elektromobilitet/Lang_Tong2_300px.jpg" class="chalmersPosition-FloatLeft" alt="Lang Tong" style="margin:5px" /><span style="background-color:initial">During nine months, Chalmers University of Technology is reinforced by Professor Lang Tong from Cornell University, USA. As a guest professor, one of his tasks will be to contribute to Chalmers' research in the field of electric power engineering, primarily focusing on digitalization in large-scale infrastructure for the charging of electric vehicles.</span><div><br /></div> <div>“Being a researcher interested in electromobility, Chalmers is an attractive place to visit”, says Lang Tong. “The close relation to industry as well as Chalmers' often application-driven research on electrified vehicles are interesting to me. In return, I hope to be able to contribute with my knowledge of applying ideas from artificial intelligence and data science in power and energy systems.”</div> <div><br /></div> <div>Lang Tong was in 2018 awarded the prestigious Fulbright Distinguished Chair in Alternative Energy Technology. His visit to Chalmers is funded by the Fulbright Scholar Program, a bi-national organization promoting exchange between Sweden and the US with government funding from both nations.</div> <div><br /></div> <h5 class="chalmersElement-H5">Developing smart charging of electrified vehicles</h5> <div>He is currently engaged in a collaborative research project at the department of Electrical Engineering aiming at developing technology and software systems for smart charging of electrified vehicles.</div> <div><br /></div> <div>“In 12-14 years, the proportion of electric cars is forecasted to increase to about 10 percent of the vehicle fleet”, Lang Tong says. “The infrastructure for charging the vehicles must, by then, be upgraded to become sufficient and robust enough to handle the increasing demand. Otherwise the lack of infrastructure risks hampering the development.”</div> <div><br /></div> <div>What will happen if thousands of drivers in Gothenburg, when they get home from work in the evening, plug in their electric cars for charging at the same time?</div> <div><br /></div> <div>“Well, it won´t be possible to charge all those vehicles at the same time”, Lang Tong notes. “The local distribution network will get overloaded; the power demand will be too heavy.”</div> <div><br /></div> <div>Instead, the solution lies in applying digital systems that in real time control and distribute the available power depending on the demand. </div> <div><br /></div> <div>“To match supply and demand of energy the development of smart systems is required. The systems need to be so smart that they also can take into account such factors as how much each driver is prepared to pay, and how fast the vehicles must be fully charged for the next trip.”</div> <div><br /></div> <div>At times, when there is a high strain on the grid from prioritized electrical equipment, the charging of some vehicles could be planned to be conducted later. Or the stored energy in the batteries of the car could even be used as a reinforcement or backup to the grid.</div> <div><br /></div> <h5 class="chalmersElement-H5">The potential of digitalization</h5> <div>“I am very pleased with the help Lang Tong gives us to grasp the new possibilities and to develop the use of data science and artificial intelligence in our research and in our education of power engineers for the future,” says Jörgen Blennow, Head of division Electric Power Engineering. “Digitalization will emerge in more and more areas, and it is important for us to fully understand what that means in terms of reliability, controllability and optimization of power systems.”</div> <div><br /></div> <div>During his stay at Chalmers, Professor Lang Tong also will be giving courses on machine learning and artificial intelligence in power systems to doctoral students.</div> <div><br /></div> <h5 class="chalmersElement-H5">A sustainable approach to future power systems</h5> <div>“In Scandinavia, I experience that there are strong environmental concerns against the use of fossil fuels, which in turn support the development of more sustainable solutions for transportation, generation of electricity and heating”, Lang Tong says. “However, for the electrified transportation system to be expanded on a large scale, there is also a need for political long-term policies and incentives supporting electrification, along with the expansion of infrastructure for charging the vehicles.”</div> <div><br /></div> <div>“The current power system is going through a transformation”, he continues. “In my opinion, this development is driven by two technological areas that require the attention of the researchers of today. On one hand, there is the development of electromobility. On the other hand, there is the need of an expanded system for solar energy combined with batteries to store the energy. A new power system design will make it possible for people to produce their own energy, in a small scale at home, and to save surplus electricity for later.” </div> <div><br /></div> <div>If electricity does not necessarily need to be produced at the same time as it is consumed, to maintain the balance in the electrical grid, conditions are created for more producers to enter the system, while a higher share of renewable energy sources also can be introduced.</div> <div><br /></div> <h5 class="chalmersElement-H5">Visiting together</h5> <div>Professor Lang Tong and his wife, Professor Qing Zhao also from Cornell University, have accompanied each other to Sweden and Chalmers. Both are visiting professors at the department of Electrical Engineering, <a href="/en/departments/e2/news/Pages/A-Jubilee-Professor-that-unwinds-complexity.aspx">Qing Zhao being a Jubilee Professor of Chalmers 2019.​</a> </div> <div><br /></div> <div>“Indeed, this was a good opportunity for us both to come to Chalmers and Gothenburg. We like the city, not least we enjoy shopping fresh food in the local market.”</div> <div><br /></div> <div>Before Lang Tong leaves Sweden, he would like to visit some more parts of the country. Accompanied by family and friends, he took a trip to Lapland during the winter season to experience the climate and the culture up north.</div> <div><br /></div> <div><div>Text and photo: Yvonne Jonsson​</div></div> <div><br /></div> <div><div><span style="background-color:initial"><a href="https://www.cies.org/" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more about the Fulbright Scholar Progra</a>m</span><span style="background-color:initial">​</span><br /></div></div> <div><span style="background-color:initial"><br /></span></div> <div><strong>​</strong><span style="background-color:initial"><strong>For more information, please contact:</strong></span><br /></div> <div><a href="https://people.ece.cornell.edu/ltong/" target="_blank">Lang Tong</a>, guest professor from Cornell University, USA</div> <div><a href="/en/Staff/Pages/jorgen-blennow.aspx">Jörgen Blennow​</a>, head of division Electric Power Engineering, department of Electrical Engineering, Chalmers University of Technology<br /></div> ​Tue, 16 Apr 2019 07:30:00 +0200https://www.chalmers.se/en/departments/physics/news/Pages/Worlds-fastest-hydrogen-sensor-could-pave-the-way-for-clean-hydrogen-energy.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Worlds-fastest-hydrogen-sensor-could-pave-the-way-for-clean-hydrogen-energy.aspxWorld&#39;s fastest hydrogen sensor could pave the way for clean energy<p><b>Hydrogen is a clean and renewable energy carrier that can power vehicles, with water as the only emission. Unfortunately, hydrogen gas is highly flammable when mixed with air, so very efficient and effective sensors are needed. Now, researchers from Chalmers University of Technology, Sweden, present the first hydrogen sensors ever to meet the future performance targets for use in hydrogen powered vehicles.</b></p><div><p class="chalmersElement-P">​<span style="background-color:initial">The researchers’ ground-breaking results were recently <a href="https://www.nature.com/articles/s41563-019-0325-4">published in the prestigious scientific journal Nature Materials.​</a> The discovery is an optical nanosensor encapsulated in a plastic material. The sensor works based on an optical phenomenon – a plasmon – which occurs when metal nanoparticles are illuminated and capture visible light. The sensor simply changes colour when the amount of hydrogen in the environment changes.</span></p> <p class="chalmersElement-P">The plastic around the tiny sensor is not just for protection, but functions as a key component. It increases the sensor’s response time by accelerating the uptake of the hydrogen gas molecules into the metal particles where they can be detected. At the same time, the plastic acts as an effective barrier to the environment, preventing any other molecules from entering and deactivating the sensor. The sensor can therefore work both highly efficiently and undisturbed, enabling it to meet the rigorous demands of the automotive industry – to be capable of detecting 0.1 percent hydrogen in the air in less than a second.</p> <img src="/SiteCollectionImages/Institutioner/F/350x305/Ferry_portratt_350x305.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;height:216px;width:250px" /><p class="chalmersElement-P">“We have not only developed the world's fastest hydrogen sensor, but also a sensor that is stable over time and does not deactivate. Unlike today's hydrogen sensors, our solution does not need to be recalibrated as often, as it is protected by the plastic,” says Ferry Nugroho, a researcher at the Department of Physics at Chalmers.</p> <p class="chalmersElement-P">It was during his time as a PhD student that Ferry Nugroho and his supervisor Christoph Langhammer realised that they were on to something big. After reading a scientific article stating that no one had yet succeeded in achieving the strict response time requirements imposed on hydrogen sensors for future hydrogen cars, they tested their own sensor. They realised that they were only one second from the target – without even trying to optimise it. The plastic, originally intended primarily as a barrier, did the job better than they could have imagined, by also making the sensor faster. The discovery led to an intense period of experimental and theoretical work.</p> <p class="chalmersElement-P">“In that situation, there was no stopping us. We wanted to find the ultimate combination of nanoparticles and plastic, understand how they worked together and what made it so fast. Our hard work yielded results. Within just a few months, we achieved the required response time as well as the basic theoretical understanding of what facilitates it,” says Ferry Nugroho.</p> <p class="chalmersElement-P">Detecting hydrogen is challenging in many ways. The gas is invisible and odourless, but volatile and extremely flammable. It requires only four percent hydrogen in the air to produce oxyhydrogen gas, sometimes known as knallgas, which ignites at the smallest spark. In order for hydrogen cars and the associated infrastructure of the future to be sufficiently safe, it must therefore be possible to detect extremely small amounts of hydrogen in the air. The sensors need to be quick enough that leaks can be rapidly detected before a fire occurs.</p> <img src="/SiteCollectionImages/Institutioner/F/350x305/ChristophLanghammerfarg350x305.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;height:216px;width:250px" /><p class="chalmersElement-P">​“It feels great to be presenting a sensor that can hopefully be a part of a major breakthrough for hydrogen-powered vehicles. The interest we see in the fuel cell industry is inspiring,” says Christoph Langhammer, Professor at Chalmers Department of Physics.</p> <p class="chalmersElement-P">Although the aim is primarily to use hydrogen as an energy carrier, the sensor also presents other possibilities. Highly efficient hydrogen sensors are needed in the electricity network industry, the chemical and nuclear power industry, and can also help improve medical diagnostics.</p> <p class="chalmersElement-P">“The amount of hydrogen gas in our breath can provide answers to, for example, inflammations and food intolerances. We hope that our results can be used on a broad front. This is so much more than a scientific publication,” says Christoph Langhammer.</p> <p class="chalmersElement-P">In the long run, the hope is that the sensor can be manufactured in series in an efficient manner, for example using 3D printer technology.<br /><br /></p> <div><strong>Text: </strong><span style="background-color:initial">Mia Halleröd Palmgren,</span><span style="background-color:initial"> </span><a href="mailto:mia.hallerodpalmgren@chalmers.se">mia.hallerodpalmgren@chalmers.se</a> and <span style="background-color:initial">Joshua Worth,</span><a href="mailto:joshua.worth@chalmers.se"> joshua.worth@chalmers.se</a><span style="background-color:initial">​ </span></div> <div><strong>Image</strong> of C<span style="background-color:initial">hristoph</span><span style="background-color:initial"></span><span style="background-color:initial"></span><span style="background-color:initial"></span><span style="background-color:initial"></span><span style="background-color:initial"></span><span style="background-color:initial"></span><span style="background-color:initial"></span><span style="background-color:initial"></span><span style="background-color:initial"> Langhammer: Henrik Sandsjö</span><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><strong>Illustration</strong> of the sensor technique: </span><span style="background-color:initial">Ella Marushchenko<br /></span><span style="background-color:initial">Images of Ferry Nugroho, the sensor and the group picture: Mia Halleröd Palmgren​</span></div></div> <div><img src="/SiteCollectionImages/Institutioner/F/750x340/Vatgassensor_750x340.jpg" alt="" style="color:rgb(33, 33, 33);font-family:&quot;open sans&quot;, sans-serif;font-size:24px;background-color:initial;margin:5px" /> ​</div> <h4 class="chalmersElement-H4"><span>Facts: The world's fastest hydrogen sensor​</span><span>​</span></h4> <div><span style="color:rgb(33, 33, 33);font-family:&quot;open sans&quot;, sans-serif;background-color:initial"><br /></span></div> <div><ul><li><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/vätgassensor_amerikansk_illu350x460.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:250px;height:324px" /><span style="background-color:initial">The Chalmers-developed sensor is based on an optical phenomenon – a plasmon – which occurs when metal nanoparticles are illuminated and capture light of a certain wavelength.</span></li> <li><span style="background-color:initial"></span>The optical nanosensor contains millions of metal nanoparticles of a palladium-gold alloy, a material which is known for its sponge-like ability to absorb large amounts of hydrogen. The plasmon phenomenon then causes the sensor to change colour when the amount of hydrogen in the environment changes.</li> <li>The plastic around the sensor is not only a protection, but also increases the sensor’s response time by facilitating hydrogen molecules to penetrate the metal particles more quickly and thus be detected more rapidly. At the same time, the plastic acts as an effective barrier to the environment because no other molecules than hydrogen can reach the nanoparticles, which prevents deactivation.</li> <li>The efficiency of the sensor means that it can meet the strict performance targets set by the automotive industry for application in hydrogen vehicles of the future by being capable of detecting 0.1 percent hydrogen in the air in less than one second.</li> <li>The research was funded by the Swedish Foundation for Strategic Research, within the framework of the Plastic Plasmonics project.​<br /><br /></li></ul> <div><div></div></div></div> <div> </div> <h4 class="chalmersElement-H4">About the scientific article: </h4> <div> </div> <div><span style="background-color:initial">The article</span><span style="background-color:initial"> </span><a href="https://www.nature.com/articles/s41563-019-0325-4">”Metal – Polymer Hybrid Nanomaterials for Plasmonic Ultrafast Detection” ​</a><span style="background-color:initial">has been published in Nature Materials and is written by Chalmers researchers Ferry Nugroho, Iwan Darmadi, Lucy Cusinato, Anders Hellman, Vladimir P. Zhdanov and Christoph Langhammer. The results have been developed in collaboration with Delft Technical University in the Netherlands, the Technical University of Denmark and the University of Warsaw, Poland.</span><span style="background-color:initial">​</span></div> <div> </div> <div><br /></div> <div> </div> <div><img src="/SiteCollectionImages/Institutioner/F/750x340/Vatgassensor_forskarnabakom_20190404_750x340.jpg" alt="" style="margin:5px" /><br /> <span style="background-color:initial">Chalmers researchers</span><span style="background-color:initial"> ​</span><span style="background-color:initial">F</span><span style="background-color:initial">erry Nugroho, Iwan Darmadi, Christoph Langhammer, Lucy Cusinato och Anders Hellman. </span></div> <span></span><div></div> <div> </div> <div><br /></div> <div> </div> <div><h4 class="chalmersElement-H4" style="font-family:&quot;open sans&quot;, sans-serif">For more information:​</h4> <div><a href="/en/Staff/Pages/Ferry-Anggoro-Ardy-Nugroho.aspx">Ferry Nugroho</a>, <span></span>Researcher, Department of Physics, Chalmers University of Technology, +46 31 772 54 21, <a href="mailto:ferryn@chalmers.se">ferryn@chalmers.se</a><br /><br /></div> <div><a href="/en/staff/Pages/Christoph-Langhammer.aspx">Christoph Langhammer</a>, Professor, Department of Physics, Chalmers University of Technology, +46 31 772 33 31, ​ <a href="mailto:clangham@chalmers.se">clangham@chalmers.se</a></div></div>Thu, 11 Apr 2019 07:00:00 +0200https://www.chalmers.se/en/departments/see/news/Pages/the-first-image-of-a-black-hole.aspxhttps://www.chalmers.se/en/departments/see/news/Pages/the-first-image-of-a-black-hole.aspxThe first image of a black hole<p><b>Astronomers at Chalmers have been part of an international collaboration presenting the first observations of the black hole at the heart of distant galaxy Messier 87.</b></p>​<span style="background-color:initial">The Event Horizon Telescope (EHT) — a planet-scale array of eight ground-based radio telescopes forged through international collaboration — was designed to capture images of a black hole. On April 10, in coordinated press conferences across the globe, EHT researchers reveal that they have succeeded, unveiling the first direct visual evidence of a supermassive black hole and its shadow.</span><div><br /></div> <div>This breakthrough was announced in a series of six papers published in a special issue of The Astrophysical Journal Letters. The image reveals the black hole at the center of Messier 87, a massive galaxy in the nearby Virgo galaxy cluster. This black hole resides 55 million light-years from Earth and has a mass 6.5 billion times that of the Sun.</div> <div><br /></div> <div>The EHT links telescopes around the globe to form an Earth-sized virtual telescope with unprecedented sensitivity and resolution. The EHT is the result of years of international collaboration, and offers scientists a new way to study the most extreme objects in the Universe predicted by Einstein’s general relativity during the centennial year of the historic experiment that first confirmed the theory.</div> <div><br /></div> <div>&quot;We have taken the first picture of a black hole,&quot; says EHT project director Sheperd S. Doeleman of the Center for Astrophysics | Harvard &amp; Smithsonian. &quot;This is an extraordinary scientific feat accomplished by a team of more than 200 researchers.&quot;</div> <div><br /></div> <div><img src="/SiteCollectionImages/Centrum/Onsala%20rymdobservatorium/340x/eht_chalmers_foton_72dpi_340x157.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />Of these researchers, three are from Chalmers: John Conway and Michael Lindqvist at Onsala Space Observatory and the Department of Space, Earth and Environment, as well as Ivan Martí-Vidal, formerly of Onsala Space Observatory and now astronomer at the Instituto Geográfico Nacional in Spain.<br /></div> <div><br /></div> <div><div><span style="background-color:initial">– These results are incredibly exciting. But they are just the beginning of what I think will be a fantastic adventure when it comes to depicting black holes, </span><span style="background-color:initial">says</span><span style="background-color:initial"> </span><span style="background-color:initial">John Conway, professor of radio astronomy at Chalmers and director of Onsala Space Observatory.</span></div> <div><br /></div> <div>At Chalmers, the Group for Advanced Receiver Development at <span style="background-color:initial">Onsala Space Observatory,</span><span style="background-color:initial"> </span><span style="background-color:initial">GARD</span><span style="background-color:initial">, are developing receivers and frequency mixers for expanding EHT's possibilities to look even further into the universe. </span></div> <span></span><div></div></div> <div><br /></div> <div>More information and more images can be found in the <a href="https://www.eso.org/public/news/eso1907/?lang">press release from ESO, the European Southern Observatory</a>. </div>Thu, 11 Apr 2019 00:00:00 +0200https://www.chalmers.se/en/news/Pages/Hakan-Frisinger-scholarship-goes-to-Chalmers-professor.aspxhttps://www.chalmers.se/en/news/Pages/Hakan-Frisinger-scholarship-goes-to-Chalmers-professor.aspxHåkan Frisinger scholarship to Chalmers professor<p><b>​Håkan Frisinger Foundation for Means of Transport Research awards its 2018 scholarship to Chalmers Professor Sonia Yeh. The scholarship, amounting to 250 000 SEK, rewards Sonia Yeh for her innovative research concerning sustainable transport and developing solutions for mobility.</b></p>​<span style="background-color:initial">Sonia Yeh is a professor at Physical Resource Theory at the Department of Space, Earth and Environment at Chalmers University of Technology. Her fields of research centres on alternative transportation fuels, consumer behaviour, urban mobility and sustainability standards. Her research has made her an internationally recognized expert on energy economics and modulation of energy systems.</span><div><br /></div> <div>Among other things she co-led a large collaborative team from the University of California Davis and UC Berkeley advising the U.S. states of California and Oregon, and British Columbia, Canada to design and implement a market-based carbon policy targeting GHG emission reductions from the transport sector.</div> <div><br /></div> <div>Sonia Yeh came to Chalmers as Adlerbertska visiting professor and U.S Fulbright Distinguished Chair Professor in Alternative Energy Technology to foster the exchange of transport research among the U.S, Sweden and the rest of Europe.</div> <div><br /></div> <div>Appointed permanently at Chalmers since 2017, she now aims to promote sustainable transport by linking innovative Big Data techniques with emerging developments in human mobility. With the focus on designing solutions that minimize the system-wide, drawbacks of transportation, such as pollution, while enhancing the societal benefits, or convenience and access to mobility.</div> <div><br /></div> <div>Håkan Frisinger was CEO of Volvo in 1983–1987, and Chairman of the Board in 1997-1999. The nomination of recipients of the Frisinger scholarship is conducted by the Chalmers University of Technology and Volvo Research and Educational Foundations (VREF). The decision about the scholarship is taken by the Board of the VREF.<br /></div> <div><br /></div> <div>The scholarship will be presented by the Håkan Frisinger Foundation at a seminar on Monday May 6 from 13.00, at Chalmerska Huset, Gothenburg. The seminar will be held in English.</div> <div><br /></div> <div><div><a href="/en/about-chalmers/calendar/Pages/Håkan-Frisinger-Seminar.aspx">Click here for more information and to register for the seminar​</a></div></div> <div><br /></div> <div>Text: AB Volvo<br />Photo: Anna-Lena Lundqvist</div> <div></div>Wed, 10 Apr 2019 15:35:00 +0200https://www.chalmers.se/en/departments/see/news/Pages/Jubilee-conference-looking-into-space-and-to-the-future.aspxhttps://www.chalmers.se/en/departments/see/news/Pages/Jubilee-conference-looking-into-space-and-to-the-future.aspxJubilee conference looking into space and the future<p><b>​On April 15 international researchers working on instrumentation and technologies for astronomy, planetary and remote sensing gather at Chalmers for ISSTT 2019, the 30th International Symposium on Space Terahertz Technology. – This is a relatively small and highly specialized research field, contributing absolute top-class instruments and research to many other fields, says Victor Belitsky, head of ISSTT’s local organizing committee at Chalmers.</b></p>​This also marks the second time the ISSTT is arranged at Chalmers, who was first to arrange the symposium outside of the US, in 2005. The symposium topics range from instrumentation for miniature “shoe box” satellites and how to probe the trail of water in distant space in search of habitable planets, to the development strategies for the <a href="https://www.almaobservatory.org/en/home/">ALMA Observatory in Chile</a>.<div><div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/RoG/Profilbilder/belitsky-victor.JPG" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />– What is perhaps “exotic” for our field is that it covers many areas. It’s rooted in basic physics, we have first-rate engineering of micro components down to Nano levels, as well as practical installations in full scale telescopes – and there are many connections and active feedback from users and researchers. This is also reflected in the wide variety of topics during the conference, says Victor Belitsky. </div> <div><br /></div> <div>Victor is professor and head of the Group for Advanced Receiver Development (GARD) at Chalmers. GARD is part of the division Onsala Space Observatory at the Department of Space, Earth and Environment and the group is responsible for designing and delivering instruments and receiver systems to some of the world’s largest astronomy observatories such as ALMA, <a href="http://www.apex-telescope.org/">APEX</a> and <a href="https://www.cosmos.esa.int/web/herschel">Herschel</a>.</div> <div><br /></div> <div><div>Victor describes the atmosphere at ISSTT to be both informal and productive, mainly since many of over the 130 coming researchers are returning ISSTT participants, willing to share ideas and discoveries. But there are also new researchers coming every year. To encourage young participants the symposium arranges a student competition for the first time this year, to “identify and recognize outstanding technical contributions from individual students”. Five students from the master program in Wireless, Photonics and Space Engineering are also participating in the symposium. </div> <div><br /></div> <div>The five keynote speakers are: </div> <div><div><ul><li><span style="background-color:initial">Susanne Aalto, </span><span style="background-color:initial">Extragalactic Astronomy, Space, Earth and Environment, Chalmers. </span></li> <li><span style="background-color:initial">Donal Murtagh, Microwave and optical remote sensing, </span><span style="background-color:initial">S</span><span style="background-color:initial">pace, Earth and Environment, </span><span style="background-color:initial">Chalmers. ​</span></li> <li><span style="background-color:initial">Leonardo Testi, </span>Professor, Head of the ESO ALMA Support Centre</li> <li><span style="background-color:initial">Paola Caselli, </span>the Max-Planck-Institute, and Space, Earth and Environment , Chalmers</li> <li><span style="background-color:initial">Karl-Friedrich Schuster, </span>Institut de Radioastronomie Millimétrique</li></ul></div> <div><span style="background-color:initial">When considering the symposium programme, Victor is most looking forward to the last day of the conference, which focuses on new devices and future developments. But he also knows to expect the unexpected during the ISSTT. </span><br /></div></div> <div><br /></div> <div>– The abstracts from our invited speakers look very promising, but I also know that we are in for some surprises, as some of the speakers will present their very latest work, and even works in progress for others to comment. So, I am most looking forward to the surprises! </div></div> <div><br /></div> <div><em>Text: Christian Löwhagen.</em></div> <div><br /></div> <h5 class="chalmersElement-H5">Read more: ​​</h5> <div><a href="https://www.isstt2019.com/">ISSTT 2019 official web site​</a>. </div> <div><a href="/en/departments/see/research/OSO/gard/Pages/default.aspx">GARD, the Group for Advanced Receiver Development at Chalmers</a>. </div> <div><a href="/en/departments/see/news/Pages/Will-image-the-distant-universe.aspx">News item about the ALMA receivers, developed and produced by GARD</a>.</div> <div><p class="MsoNormal"><br /></p></div></div>Tue, 09 Apr 2019 00:00:00 +0200https://www.chalmers.se/en/departments/math/news/Pages/The-Wallenberg-investment-in-mathematics-continues.aspxhttps://www.chalmers.se/en/departments/math/news/Pages/The-Wallenberg-investment-in-mathematics-continues.aspxThe Wallenberg investment in mathematics continues<p><b>​This year’s funding from the Wallenberg mathematics programme goes to 15 mathematicians, amongst them Julia Brandes who receives a grant to recruit a postdoctoral researcher, Stephen Pankavich who will be visiting professor at Mathematical Sciences, and Jakob Hultgren who will receive a postdoctoral position abroad.</b></p><p>​The Knut and Alice Wallenberg Foundation has since 2014, together with the Royal Swedish Academy of Sciences, supported the mathematical research in Sweden through an extensive mathematics programme. The aim is for Sweden to recover its position at the international cutting edge by giving the best young researchers international experience and by recruiting young as well as more experienced mathematicians to Sweden.</p> <p><a href="https://kaw.wallenberg.org/en/press/continuing-major-investments-mathematics">Press release from the Knut and Alice Wallenberg Foundation &gt;&gt;</a></p> <h4><a href="https://kaw.wallenberg.org/en/julia-brandes">New solutions to ancient problems </a></h4> <p><img class="chalmersPosition-FloatRight" alt="Photo Julia Brandes" src="/SiteCollectionImages/Institutioner/MV/Nyheter/JuliaBrandes200x250.jpg" style="margin:5px" />Julia Brandes plans in her project to make use of the improved precision of the circle method to study the number of integer solutions to certain equation systems under certain extra conditions. Two cases are particularly interesting. On the one hand, she studies such equation systems where the variables lie in widely differing ranges – some variables are large while others are small. The other part of the project is about solutions which, if they are written in a number system with a certain prime base p, avoid certain digits. Such numbers are of interest because they have a strange but regular fractal structure. By making use of this special structure it is expected that it will be possible to predict how many such solutions there are.</p> <p>– I think that research in mathematics should be supported for two reasons. On the one hand, there is a certain romance in fundamental mathematical research, as in fundamental research in terms of space travel or particle accelerators. That romance is not to be underestimated as the source of inspiration for future researchers. How many young people interested in mathematics do not read popular science books on, for example, Ramanujan or Fermat’s last theorem? The second reason is less romantic: A large part of the science and engineering research had not been imagined without mathematics.</p> <p><a href="https://science.gu.se/aktuellt/nyheter/Nyheter+Detalj//satsar-pa-matematiker.cid1622485">The whole interview with Julia Brandes at the Faculty of Science web site, in Swedish &gt;&gt;</a></p> <h4><a href="https://kaw.wallenberg.org/en/stephen-pankavich">Cosmic plasma in a mathematical suit </a></h4> <p><img class="chalmersPosition-FloatRight" alt="Photo Stephen Pankavich" src="/SiteCollectionImages/Institutioner/MV/Nyheter/StephanPankavich200x250.jpg" style="margin:5px" />Stephen Pankavich is an associate professor at the Colorado School of Mines, Golden, USA. He will be a visiting professor at the Department of Mathematical Sciences and together with researchers here develop new methods for solving different mathematical problems in the kinetic theory of plasma dynamics. Plasma is a special kind of gas in which electrons are stripped from the atoms, making the gas electrically charged. Plasma is therefore of practical interest; for example, plasma engines have been developed to drive probes that are sent far out in space. Plasma is regarded as the fourth form of matter, after gases, liquids and solids, and is the most common state of matter in the universe. Galactic clouds, tails of comets and the solar wind, among many other things, consist of plasma’s electrically charged particles.</p> <p>The motions of plasma are described by a number of complicated partial differential equations. The purpose of this project is to show that the equations have realistic solutions, and to determine the properties of these solutions, such as development over time, and calculate their sensitivity with respect to the plasma’s state, such as its mass, charge, or temperature. Since the mathematical models always have physical counterparts, the challenge of analyzing a problem mathematically also becomes a challenge in understanding the physical phenomena it describes at a deeper level. Therefore, a discovery of a specific behavior in solutions to partial differential equations can be translated into real knowledge of problems in plasma physics or astrophysics.</p> <h4><a href="https://kaw.wallenberg.org/en/jakob-hultgren">New tools for capturing the unruly </a></h4> <p><img class="chalmersPosition-FloatRight" alt="Photo Jakob Hultgren" src="/SiteCollectionImages/Institutioner/MV/Nyheter/JakobHultqvistKAW200x250.jpg" style="margin:5px" />Jakob Hultgren receives a postdoctoral position at a foreign university and funding for two years after his return to Sweden. The project’s title is “New notions of canonical metrics and stability in complex geometry” and contains two separate parts. The first is based on the new types of canonical metrics and stability conditions that Jakob introduced together with David Witt Nyström when he was a doctoral student (<a href="/sv/institutioner/math/nyheter/Sidor/Pa-jakt-efter-det-unika.aspx">interview before the thesis defence at Chalmers University of Technology last year</a>, in Swedish). There are many different things that needs investigation, but the overall goal is to establish new connections between geometric analysis and other fields such as algebraic geometry and probability theory. The second part of the project is about a question related to mirror symmetry in string theory that was posed in the early 2000s (the Gross-Wilson conjecture). This is a very algebraic problem and the new part of the approach is an analytical tool that Jakob developed together with Magnus Önnheim at Chalmers. </p> <p>– At the University of Maryland, I will mainly work with Yanir Rubinstein. He has made many important contributions to the field but is also very broad and flexible in his interests, so there will probably appear many unexpected and interesting angles during the time of the project. Many of our ideas and tools come from geometric analysis where <a href="http://www.abelprize.no/c73996/seksjon/vis.html?tid=74011&amp;strukt_tid=73996">Karen Uhlenbeck, who received the Abel Prize last week</a>, is active.<br />For example, one of the inspirations for the first part of the project is one of her results: the Donaldon-Uhlenbeck-Yau theorem.<br /><br /><strong>Texts</strong>: Carina Eliasson, Simone Calogero, Jakob Hultgren<br /><strong>Photos</strong>: Johan Bodell (Julia Brandes), private (Stephen Pankavich, Jakob Hultgren)</p>Thu, 28 Mar 2019 03:30:00 +0100https://www.chalmers.se/en/departments/see/news/Pages/EU-consumption-plays-major-role-in-tropical-deforestation.aspxhttps://www.chalmers.se/en/departments/see/news/Pages/EU-consumption-plays-major-role-in-tropical-deforestation.aspxEU consumption linked to tropical deforestation<p><b>A sixth of all emissions resulting from the typical diet of an EU citizen can be directly linked to deforestation of tropical forests. Two new studies, from Chalmers University of Technology, Sweden, shed new light on this impact, by combining satellite imagery of the rainforest, global land use statistics and data of international trade patterns.  “In effect, you could say that the EU imports large amounts of deforestation every year. If the EU really wants to achieve its climate goals, it must set harder environmental demands on those who export food to the EU,” says Martin Persson from Chalmers, one of the researchers behind the studies.</b></p><div><img src="/SiteCollectionImages/Institutioner/SEE/Nyheter/Martin-Florence.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />​<span style="background-color:initial">The link between production of certain foods and deforestation has been known before. But what Martin Persson and Chalmers colleague Florence Pendrill have now investigated is the extent to which deforestation in the tropics is linked to food production, and then where those foods are eventually consumed. In the first study (</span><a href="https://iopscience.iop.org/article/10.1088/1748-9326/ab0d41" style="outline:currentcolor none 0px">Deforestation displaced: trade in forest-risk commodities and the prospects for a global forest transition</a>)<span style="background-color:initial">, they focused on how the expansion of cropland, pastures, and forestry plantations has taken place at the expense of the rainforest.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">“We can see that more than half of deforestation is due to production of food and animal feed, such as beef, soy beans and palm oil. There is big variation between different countries and goods, but overall, exports account for about a fourth of that deforestation which is connected to food production. And these figures have also increased during the period we looked at,” says Florence Pendrill.</span></div> <div> </div> <div><br /></div> <div>Using this information, the researchers investigated, in the second study (<span style="background-color:initial">(</span><a href="https://www.sciencedirect.com/science/article/pii/S0959378018314365" style="outline:currentcolor none 0px">Agricultural and forestry trade drives large share of tropical deforestation emissions</a>)<span style="background-color:initial">,</span><span style="background-color:initial"> the amount of carbon dioxide </span><span style="background-color:initial">emissions resulting from this production (see the picture below), and where the produce is then consumed. The figures for the EU are particularly interesting, since the EU is a large food importer. Furthermore, the EU shall soon present a plan for how to reduce its contribution to deforestation.</span></div> <span></span><div></div> <div> </div> <div><br /></div> <div>The EU already has strict requirements in place connected to deforestation which producers of timber and wood products must adhere to in order to export their goods to the EU. This demonstrates their ability to influence other countries’ work in protecting the rainforest.</div> <div><br /></div> <div> </div> <div>“Now, as the connection between food production and deforestation is made clearer, we should start to discuss possibilities for the EU to adopt similar regulations for food imports. Quite simply, deforestation should end up costing the producer more. If you give tropical countries support in their work to protect the rainforest, as well as giving farmers alternatives to deforestation to increase production, it can have a big impact,” says Florence Pendrill. </div> <div><br /></div> <div> </div> <div>The current studies were done in collaboration with researchers from the Stockholm Environment Institute in Sweden, Senckenberg Biodiversity and Climate Research Centre in Germany, and NTNU, the Norwegian University of Science and Technology. They are a continuation of research which was done through the Prince project (Policy Relevant Indicators for National Consumption and Environment), where the connections between Swedish consumption and emissions from deforestation were presented in the autumn. </div> <div><br /></div> <div> </div> <div>The studies indicate that, although there is a big variation between different EU countries, on average a sixth of the emissions from a typical EU diet can be directly traced back to deforestation in the tropics. Emissions from imports are also high when compared with domestic agricultural emissions. For several EU countries, import emissions connected to deforestation are equivalent to more than half of the emissions from their own, national agricultural production. </div> <div><br /></div> <div> </div> <div>“If the EU really wants to do something about its impact on the climate, this is an important emissions source. There are big possibilities here to influence production so that it avoids expanding into tropical forests,” says Martin Persson. </div> <div><br /></div> <div> </div> <div>Above all, Martin Persson believes the responsibility for achieving these changes lies with bigger actors, such as countries and large international organisations. But he also sees a role for the consumer to get involved and have an influence.</div> <div><br /></div> <div> </div> <div>“Public opinion is vital for the climate question – not least in influencing politicians, but also commercially. We can see already that several companies have made commitments to protecting tropical forests, through voluntarily pledging to avoid products which are farmed on deforested land. And in large part, that results from the fact that popular opinion is so strong on this issue,” he concludes. </div> <div><br /></div> <div><em>Text: Christian Löwhagen. </em></div> <div><em>Photos: Anna-Lena Lundqvist and Christian Löwhagen.</em></div> <em> </em><div><em> </em></div> <em> </em><div>​<br /></div> <div> </div> <div><h5 class="chalmersElement-H5"><span>More information on: Carbon dioxide emissions due to tropical deforestation</span></h5></div> <h5 class="chalmersElement-H5"> </h5> <div>For the period 2010–2014, the researchers estimate net emissions of 2.6 gigatonnes of carbon dioxide due to deforestation associated to the expansion of croplands, pastures and forestry plantations in the tropics. The main commodity groups associated with these emissions were cattle meat (0.9 gigatonnes of CO2) and oilseed products (including both palm oil and soybeans; 0.6 gigatonnes of CO2).</div> <div> </div> <div>There are large geographic variations in what commodities are associated with deforestation-related emissions. In Latin America, cattle meat is the dominant contributor (0.8 gigatonnes of CO2), mainly attributed to Brazilian production. In Indonesia almost half of the emissions (0.3 gigatonnes of CO2) come from oilseeds (mainly oil palm). In the rest of Asia-Pacific and Africa, a more diverse mix of commodities drives emissions from deforestation.</div> <div> </div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/SEE/Nyheter/Diagram-fordelning-utslapp.jpg" alt="" style="margin:5px" /><br /><br /><h5 class="chalmersElement-H5">Emissions sources for deforestation-related carbon dioxide emissions</h5> <div>Emissions sources for deforestation-related carbon dioxide emissions are diverse and vary by region. Emissions embodied in production are shown for each commodity group within each region. A region’s width on the x-axis corresponds to the embodied emissions produced in that region, while the y-axis shows the share of emission attributed to each commodity group within each region, implying that the rectangles within the plot are scaled according to the emissions embodied in each region-commodity combination. The percentages within the rectangles indicate the share of the total embodied emissions; 2.6 gigatonnes of carbon dioxide due to tropical deforestation during the period 2010–2014.</div></div> <div><em>Image: Florence Pendrill.</em></div> <em> </em><div>​<br /></div> <div> </div>Wed, 27 Mar 2019 06:00:00 +0100https://www.chalmers.se/en/news/Pages/This-year's-Chalmers-Fence-measure-the-horse's-speed.aspxhttps://www.chalmers.se/en/news/Pages/This-year's-Chalmers-Fence-measure-the-horse's-speed.aspxThe Chalmers Fence measures the horse&#39;s speed<p><b>​Gothenburg Horse Show and Chalmers University of Technology collaborate for the fourth year in a row to increase knowledge about how horses cross a barrier. This year, the smart fence measures the horse&#39;s speed – something that has never been done before.</b></p>​<span style="background-color:initial">This year, the group of Chalmers students use state-of-the-art radar equipment, originally developed for self-driving vehicles which now comes in handy to measure the horse's speed towards, over and after the fence.</span><div>“It is a good example of how we re-use our research and are able apply it in many different areas”, says Magnus Karlsteen, responsible for Chalmers horse sports venture.</div> <div><br /></div> <div><strong>The riders come to the exhibition stand</strong></div> <div>Just like in previous years, the audience will be able to see the results on the jumbotron in the arena. But a novelty this year is that the riders are invited to the Chalmers exhibition stand, which this year is located right outside the arena. There they can go through their horse's unique results together with an expert from the fence team.</div> <div>“One great thing about having the exhibition stand in the Scandinavium lobby is that the riders get a golden opportunity to immerse in how their horse moves and thus how they can improve their training. And it also gives the audience a chance to meet their heroes”, says Magnus Karlsteen.</div> <div><br /></div> <div><strong>Combining studies with their hobby</strong></div> <div>The project Chalmers Fence is run by Chalmers students who use their knowledge to build world-unique measurement systems with a focus on the horse's well-being, health and comfort. Many of the students are intrigued by the possibility to combine their passion for horses with their studies.</div> <div>“That is an opportunity you get when you study at Chalmers, that you can combine your hobby with your studies”, says Magnus Karlsteen.</div> <div><br /></div> <div><strong>Gothenburg Horse Show self-signed partner</strong></div> <div>The information from this year's fence measurements is combined with the results from previous years. And the goal is that the analyzes of the horses’ movement patterns will result in a more sustainable training, competition and breeding environment in the horse industry.</div> <div>“The collaboration with Chalmers is part of Gothenburg Horse Show's work to support development! The equestrian sport has been given new scientific facts which supports our work on horse training and competition”, says Tomas Torgersen, race director for the Gothenburg Horse Show.</div> <div><br /></div> <div>Text: Helena Österling af Wåhlberg</div> <div>Photo/video: Johan Bodell and students for the fence group 2019</div> <div><br /></div> Thu, 21 Mar 2019 07:00:00 +0100https://www.chalmers.se/en/departments/physics/news/Pages/Heading-towards-a-tsunami-of-light.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Heading-towards-a-tsunami-of-light.aspxHeading towards a tsunami of light<p><b>​​Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters. ​​​​​</b></p><img class="chalmersPosition-FloatRight" src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/IlliaThiele_190312_01_beskuren_webb.jpg" alt="" style="margin:5px;width:150px;height:224px" /><span style="background-color:initial"><div>“This source of radiation lets us look at reality through a new angle – it is like twisting a mirror and discovering something completely different,” says Illia Thiele, a theoretical physicist at Chalmers University of Technology. <br /></div> <div> </div> <div>Together with Dr Evangelos Siminos at the University of Gothenburg, and Tünde Fülöp, Professor of Physics at Chalmers, Illia Thiele now presents a theoretical method for creating the fastest possible single wave motion. This kind of radiation has never yet been observed in the universe or even the lab.<br /></div> <div> </div> <div>The radiation source is interesting for understanding the properties of different materials. Since it offers an ultra-fast switching of light matter interactions, it can be useful in material science, or sensor related research, for example. Moreover, it can be used as a driver for other types of radiation, and to push the limits of how short a light pulse could be. <br /></div> <div> </div> <div>“An ultra-intense pulse is like a great tsunami of light. ​The wave can pull an electron out of an atom, accelerating it to almost the speed of light, creating exotic quantum states. This is the fastest and strongest switch possible, and it paves the way for advances in fundamental research,” says Dr Illia Thiele. <br /></div> <div> </div> <div><span><span style="background-color:initial"><img src="/en/departments/physics/news/Documents/siminos_large.jpg_webb_300x450.jpg" alt="siminos_large.jpg_webb_300x450.jpg" class="chalmersPosition-FloatRight" style="margin:5px;width:150px;height:225px" /></span></span>The new pulses can be used to probe and control matter in unique ways. While other light pulses, with multiple wave periods, impose changes in the material properties gradually, pulses with a single strong wave period cause sudden and unexpected reactions. <br /><br />&quot;The uniqueness of our method lies in the fact that an indestructible medium <span><span style="background-color:initial">–<span style="display:inline-block"></span></span></span> an electron beam <span><span style="background-color:initial">–<span style="display:inline-block"></span></span></span> is used as an amplifier, allowing more intense pulses to be created,&quot; says Evangelos Siminos, Assistant Professor at the University of Gothenburg.<br /></div> <div><span style="background-color:initial"></span> </div> </span><span style="background-color:initial"><div>Researchers worldwide have tried to create this source of radiation, since it is of high interest for the scientific communities within physics and material science.  <br /></div> <div> </div> <div><span><span style="background-color:initial"><img class="chalmersPosition-FloatRight" src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/TundeFulop_180829_270x.jpg" alt="" style="margin:5px;width:150px;height:223px" /><span style="background-color:initial"></span></span></span>“Now, we hope to be able to bring our theoretical setup to the lab. Our method could help close the existing gaps in the scientific landscape of light sources,” says Tünde Fülöp, Professor of Physics at Chalmers. <br /> </div> <div>Read the scientific paper <a href="https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.104803">Electron beam driven generation of frequency-tunable isolated relativistic sub-cycle pulses ​</a>in Physical Review Letters. ​<br /></div> <div> </div> <div>Text: Mia Halleröd Palmgren, <a href="mailto:mia.hallerodpalmgren@chalmers.se">mia.hallerodpalmgren@chalmers.se</a></div> <div><span style="background-color:initial">Photo of Tünde Fülöp: </span><span style="background-color:initial">Johan Bodell</span><br /></div> <div>Photo of Illia Thiele: Mia Halleröd Palmgren ​<span style="background-color:initial">​</span><br /></div> <div><span style="background-color:initial">Photo of Evangelos Siminos: Adam Stahl</span></div> <div><br /> </div> <h4 class="chalmersElement-H4">The new method to create ultra-intense light pulses</h4> <div>The researchers propose a method for the generation of ultra-intense light pulses containing less than a single oscillation of the electromagnetic field. These so-called sub-cycle pulses can be used to probe and control matter in unique ways. Conventional methods can only produce sub-cycle pulses of limited field strength: above a certain threshold the amplifying medium would be ionized by the intense fields. The researchers propose to use an electron beam in a plasma, which is not subject to a damage threshold, as an amplifying medium for a seed electromagnetic pulse. To ensure that energy is transferred from the electron beam to the pulse in such a way that a sub-cycle pulse is produced, the beam needs to be introduced at an appropriate phase of the oscillation of the electromagnetic field. This can be achieved by using a mirror to reflect the seed pulse while the electron beam is being injected. This scenario leads to significant amplification of the seed pulse and the formation of an intense, isolated, sub-cycle pulse. Readily available terahertz seed pulses and electron bunches from laser-plasma accelerators could generate mid-infrared sub-cycle pulses with millijoule-level energies, which are highly desirable as probes of matter but not possible to produce with conventional sources.</div> <div><br /> </div> <h4 class="chalmersElement-H4">For more information: </h4> <div><a href="http://www.chalmers.se/en/Staff/Pages/Illia-Thiele.aspx">Illia Thiele</a>, Postdoctoral researcher, Department of Physics, Chalmers University of Technology, +46 76 607 82 79,<a href="mailto:illia.thiele@chalmers.se"> illia.thiele@chalmers.se</a><br /></div> <div> </div> <div><span style="background-color:initial"><a href="/en/staff/Pages/Tünde-Fülöp.aspx">Tünde Fülöp,​</a> Professor, Department of Physics, Chalmers University of Technology, +46 72 986 74 40, </span><a href="mailto:tunde.fulop@chalmers.se">tunde.fulop@chalmers.se</a></div> <div><br /><a href="https://www.physics.gu.se/english/about-the-department/staff/?languageId=100001&amp;disableRedirect=true&amp;returnUrl=http://www.physics.gu.se/om-institutionen/personal/?languageId%3D100000%26userId%3Dxsimev&amp;userId=xsimev">Evangelos Siminos</a>, Assistant Professor, Department of Physics, University of Gothenburg</div></span><div><span style="background-color:initial">+46 31 786 9161, <a href="mailto:evangelos.siminos@physics.gu.se">evangelos.siminos@physics.gu.se</a></span></div>Tue, 19 Mar 2019 07:00:00 +0100https://www.chalmers.se/en/departments/see/news/Pages/Spiralling-giants-Alma-massive-binary-star.aspxhttps://www.chalmers.se/en/departments/see/news/Pages/Spiralling-giants-Alma-massive-binary-star.aspxSpiralling giants: Alma witnesses the birth of a massive binary star<p><b>​A team of astronomers, among them Jonathan Tan (Chalmers) have made new observations with Alma of a molecular cloud that is collapsing to form two massive protostars that will eventually become a binary star system.</b></p>​<span style="background-color:initial">While it is known that most massive stars possess orbiting stellar companions it has been unclear how this comes about. Are the stars born together from a common, spiralling gas disk at the center of a collapsing cloud, or do they pair up later by chance encounters in a crowded star cluster?</span><div><br /></div> <div>Understanding the dynamics of forming binaries has been difficult because the protostars in these systems are still enveloped in a thick cloud of gas and dust that prevents most light from escaping. Fortunately, it is possible to see them using radio waves, as long as they can be imaged with sufficiently high spatial resolution.</div> <div>         <span style="white-space:pre"> </span></div> <div>In the current research, published in Nature Astronomy, the researchers led by Yichen Zhang (<a href="http://www.riken.jp/">RIKEN Cluster for Pioneering Research​</a>, Japan) and Jonathan Tan (Chalmers and University of Virginia), used the Atacama Large Millimeter/Submillimeter Array (Alma) telescope array in northern Chile to observe, at high spatial resolution, a star-forming region known as IRAS07299-1651, which is located about 5,500 light years (<span style="background-color:initial">1.68 kiloparsecs</span><span style="background-color:initial">) away in the constellation Puppis.</span></div> <span></span><div></div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/SEE/Nyheter/spiralling_giants_figure1_2_72dpi_340x340.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />The observations showed that already at this early stage, the cloud contains two objects, a massive “primary” central star and another “secondary” forming star, also of high mass. For the first time, the research team were able to use these observations to deduce the dynamics of the system. The observations showed that the two forming stars are <span style="background-color:initial">quite far apart, </span><span style="background-color:initial">separated by a distance of about 180 astronomical units (180 times the distance </span><span style="background-color:initial">from </span><span style="background-color:initial">the E</span><span style="background-color:initial">arth to the S</span><span style="background-color:initial">un)</span><span style="background-color:initial">.</span><span style="background-color:initial"> They are cur</span><span style="background-color:initial">rently orbiting each other with a period of at most 600 years, and have a total mass at least 18 times that of our Sun.</span></div> <div></div> <div><br /></div> <div>“This is an exciting finding because we have long been perplexed by the question of whether stars form into binaries during the initial collapse of the star-forming cloud or whether they are created during later stages. Our observations clearly show that the division into binary stars takes place early on, while they are still in their infancy,” says Yichen Zhang.</div> <div><br /></div> <div>Another finding of the study was that the binary stars are being nurtured from a common disk fed by the collapsing cloud and favoring a scenario in which the secondary star of the binary formed as a result of fragmentation of the disk originally around the primary. This allows the initially smaller secondary protostar to “steal” infalling matter from its sibling. Eventually they should emerge as quite similar &quot;twins”.</div> <div><br /></div> <div>“This is an important result for understanding the birth of massive stars. Such stars are important throughout the universe, not least for producing, at the ends of their lives, the heavy elements that make up our Earth and are in our bodies”, says Jonathan Tan.</div> <div><br /></div> <div>“What is important now is to look at other examples to see whether this is a unique situation or something that is common for the birth of all massive stars”, concludes Yichen Zhang.</div> <div><br /></div> <div>See also: <a href="https://public.nrao.edu/news/2019-alma-image-spiral-stars/">press release at NRAO</a>, <a href="http://astronomy.as.virginia.edu/news/spiraling-giants-witnessing-birth-massive-binary-star">press release at University of Virginia</a>. </div> <div> </div> <div><div><span style="font-weight:700">Contacts</span></div> <div><br /></div> <div>Robert Cumming, communicator, Onsala Space Observatory, Chalmers University of Technology, +46 31-772 5500, +46 70-493 31 14, robert.cumming@chalmers.se</div> <div><br /></div> <div>Jonathan Tan, professor of astrophysics, Chalmers University of Technology, +46 31 772 6516, jonathan.tan@chalmers.se</div> <div><br /></div> <div><strong><em>Image and film clip</em></strong></div></div> <div><br /></div> <div><em>Image A (top and above right): Alma’s view of the IRAS-07299 star-forming region and the massive binary system at its center. </em><em style="background-color:initial"><div style="display:inline !important">The background image shows dense, dusty streams of gas (shown in green) that appear to be flowing toward the center of the system. Gas that is moving toward us -- as traced by the methanol molecule -- is shown in blue; motions away from us in red. The inset image shows a zoom-in view of the massive forming binary, with the brighter, primary protostar moving toward us shown in blue and the fainter, secondary protostar moving away from us shown in red. The blue and red dotted lines show an example of orbits of the primary and secondary spiraling around their center of mass (marked by the cross). <a href="/SiteCollectionImages/Institutioner/SEE/Nyheter/spiralling_giants_figure1_2_300dpi_full.jpg">Link to full-resolution image​</a></div></em></div> <div><em><div><br /></div></em></div> <div><em>Image credit: ALMA (ESO/NAOJ/NRAO)/Y. Zhang et al</em></div> <div><em> </em></div> <div><em>Film clip:</em></div> <div><a href="https://youtu.be/7kSQRckQrdo"><em><span>See film clip on YouTube at address</span> </em>https://youtu.be/7kSQRckQrdo​</a><br /></div> <div><br /></div> <div><span style="background-color:initial"><em></em></span><i><span style="background-color:initial">A movie composed of images taken by Alma showing the gas streams, as traced by the methanol molecule, with different line-of-sight color-coded velocities, around the massive binary protostar system. The grey background image shows the overall distribution, from all velocities, of dust emission from the dense gas streams.</span><span style="background-color:initial"><br /></span></i></div> <div><br /></div> <div><br /></div> <div><strong>More about the research and about Alma</strong></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">The research findings are reported in Nature Astronomy in the article </span><span style="background-color:initial">Dynamics of a massive binary at birth by </span><span style="background-color:initial">Yichen Zhang, Jonathan C. Tan, Kei E. I. </span><span style="background-color:initial">Tanaka, James M. De Buizer, Mengyao Liu, Maria T. Beltrán, Kaitlin Kratter, Diego Mardones and Guido Garay, </span><span style="background-color:initial"> doi: 10.1038/s41550-019-0718-y</span></div> <div>Link to paper: <a href="https://www.nature.com/articles/s41550-019-0718-y">https://www.nature.com/articles/s41550-019-0718-y​</a></div> <div><br /></div> <div><div><span style="background-color:initial">The Atacama Large Millimeter/submillimeter Array (ALMA), an international astronomy facility, is a partnership of the European Organisation for Astronomical Research in the Southern Hemisphere (ESO), the U.S. National Science Foundation (NSF) and the National Institutes of Natural Sciences (NINS) of Japan in cooperation with the Republic of Chile. ALMA is funded by ESO on behalf of its Member States, by NSF in cooperation with the National Research Council of Canada (NRC) and the Ministry of Science and Technology (MOST) and by NINS in cooperation with the Academia Sinica (AS) in Taiwan and the Korea Astronomy and Space Science Institute (KASI). ALMA construction and operations are led by ESO on behalf of its Member States; by the National Radio Astronomy Observatory (NRAO), managed by Associated Universities, Inc. (AUI), on behalf of North America; and by the National Astronomical Observatory of Japan (NAOJ) on behalf of East Asia. The Joint ALMA Observatory (JAO) provides the unified leadership and management of the construction, commissioning and operation of ALMA.</span><br /></div> <div> </div></div>Mon, 18 Mar 2019 19:00:00 +0100https://www.chalmers.se/en/departments/tme/news/Pages/New-global-standard-counts-the-cost-of-environmental-damage.aspxhttps://www.chalmers.se/en/departments/tme/news/Pages/New-global-standard-counts-the-cost-of-environmental-damage.aspxGlobal standard counts the cost of environmental damage<p><b>Environmental damage costs society enormous amounts of money – and often leaves future generations to foot the bill. Now, a new ISO standard will help companies valuate and manage the impact of their environmental damage, by providing a clear figure for the cost of their goods and services to the environment.</b></p><p></p> <div>We know what goods and services cost us, but what does the environment pay? For many years now, this question has been the focus of several global companies and researchers at the Swedish Life Cycle Center, a competence centre hosted by Chalmers University of Technology, Sweden. For as long as 30 years, they have been using the so-called <a href="https://www.lifecyclecenter.se/projects/environmental-priority-strategies-in-product-design-eps/">EPS tool</a> to place a monetary value on environmental damage.</div> <div> </div> <div>Over the past three years, Bengt Steen, Professor Emeritus at Chalmers, has led the development of a new ISO standard for monetary valuation. The work has been in collaboration with AB Volvo, Essity, Nouryon (formerly Akzo Nobel Specialty Chemicals) and the IVL Swedish Environmental Institute. The initiative was taken by Swedish Life Cycle Center.</div> <div> </div> <div>“One reason why sustainable development does not move fast enough is that it is not linked to the economy,” says Bengt Steen. “Experts speak one language, and business leaders another. The negative environmental effects often remain just figures on paper. But by translating environmental issues into a monetary value, it becomes much easier to present the whole picture to an organisation and influence their strategic decisions.”</div> <div> </div> <div>Unlike many other tools, EPS weighs different types of environmental impacts, not just the effect on climate. For example, a given course of action may be beneficial for the climate but damaging for biodiversity or public health. With this approach, an overall picture is reached of what impact a product or service has on the environment, throughout its entire life cycle. A large variety of aspects are covered. Until now, this has been complex work, requiring a lot of manual input and expert knowledge.</div> <div> </div> <div>“With this standard, we can remove several of the obstacles to increased usage of monetary valuation. In a few years, when users can routinely assess the total environmental damage cost for a given investment, supplier, product design and so on, environmental issues can occupy a more central place in the boardroom. Costs to the environment can be presented side by side with profits for the company,” says Bengt Steen.</div> <div> </div> <div>Emma Ringström, Sustainability Manager at Nouryon, says that monetary valuation has given the company much valuable insight.</div> <div> </div> <div>“We have made monetary valuation of a number of our value chains and included the results of this ​​in our annual report. The analyses include financial, social, human and environmental capital, where environmental capital is partly calculated with life cycle assessment and with EPS as a valuation method. The tool has also used to see which activities in the value chain have a large total environmental damage cost compared to profit, and therefore need to be prioritised to become more sustainable.”</div> <div> </div> <div>Although tools such as EPS have existed for 30 years, and many companies like Nouryon use them to calculate their costs to the environment, Bengt Steen believes their development moves too slowly. There is no standardised framework, and few databases exist that enable their use in a uniform manner.</div> <div> </div> <div>Therefore, in 2015, the idea of a new ISO standard was born within Swedish Life Cycle Center. Together with SIS – the Swedish Standards Institute – a proposal was written that now after just over three years of work, together with many internationally recognised experts, is launched.</div> <div> </div> <div>“Few things yield such an impact as these type of heavyweight, international standards,” explains Bengt Steen. “When companies in the future can see where there are clear environmental benefits, investments are stimulated for a sustainable business.”</div> <div> </div> <div><a href="https://www.iso.org/standard/43243.html">The ISO standard</a> contains a guide for how monetary valuation should be made, defines terms and sets requirements for documentation. By extension, the standard is expected to lead to increased collaboration between experts of various kinds, as well as helping to create credible databases and software.</div> <div> </div> <div><strong>How to calculate a monetary valuation of environmental impacts </strong></div> <div>With monetary valuation of environmental impacts, many different aspects are taken into consideration. These can include energy consumption, climate impact, material use and emissions into water, air and soil. During a product’s lifetime, the amount of emissions generated, and amount of resources expended can also be measured. These lead to many demonstrable environmental effects, such as reduced crop yields, lower fish stocks and shortened human life spans, due to floods and heat waves.</div> <div> </div> <div>Finally, using generally accepted sources, such as the OECD's estimate of people's productivity value, and market prices for cereals, fish and meat, the cost of the impact can be ascertained. The end result is a concrete figure, calculated in Euros.</div> <div>In some cases, the figure represents a real incurred cost for the company, in the form of taxation or fees. In other cases, the figure signals possible future economic liabilities, or is simply a sign that the product results in environmental damage that the company wants to avoid.</div> <div> </div> <div><strong>A simple example of environmental impact valuation</strong></div> <div>Imagine a wooden chair, which is worn out and needs to be disposed of. The chair weighs 12 kg. There are two options:</div> <div> </div> <div>1. Throw the chair into a nearby rubbish bin, after which it ends up in landfill.</div> <div>2. Drive the chair to a heating plant 10 km away, where it will be burned, and used for local heating instead of fossil fuels.</div> <div> </div> <div>In the first case, the cost of transport and the landfill is low – 0.40 Euros, and the emissions from the transport are largely negligible. But, the degradation of the wood in the landfill takes place under oxygen-poor conditions, resulting in 4 kg of methane being formed. This leaks into the atmosphere and contributes to the greenhouse effect. The environmental cost of methane emissions has been calculated at EUR 3.80/kg using the EPS methodology. In total, therefore, there is a conventional cost of 0.40 Euros, and an environmental damage cost of 4 X 3.80 = <strong>15.20 Euros.</strong></div> <div> </div> <div>In the second case, the transport costs 5 Euros. The transport gives an emission of 3.8 kg carbon dioxide, but the thermal energy derived from the chair means that 6 kg of coal does not have to be burned for the heating plant to produce the heat needed. This results in a saving of about 20 kg of carbon dioxide emissions, and 6 kg of the finite natural resource, coal. With EPS, the environmental damage cost for carbon dioxide has been calculated at EUR 0.135/kg and the natural resource value of coal at EUR 0.161/kg. Therefore, this method of disposal results in a total conventional cost of 5 Euro, but a saving of environmental damage costs, an actual environmental gain, of 0.135 X (20 - 3.80) + 0.161 X 6 = <strong>3.153 Euros.</strong></div> <div> </div> <div><span><span><strong>Text: Ulrika Georgsson<span style="display:inline-block"></span></strong></span></span><br /></div> <h4 class="chalmersElement-H4">More about: ISO</h4> <div>ISO is an international standardisation body, consisting of national standardisation organisations. ISO has been operating since 1947, and works with industrial and commercial standardisation.</div> <div> </div> <div>While ISO defines itself as a non-governmental organisation, their ability to set standards is much more powerful than other non-governmental agencies, and in practice, they act as a consortium with strong ties to national governments. The members are national standardisation bodies from each country, as well as larger companies. Sweden is represented by SIS – the Swedish Standards Institute.</div> <div> </div> <div>The ISO standards have quickly been accepted internationally and are used by almost all countries. The country's size, level of development and geography have no significance in this context, as these standards are universal and are used in a similar way around the world.</div> <div> </div> <div><h4 class="chalmersElement-H4"> More about: The standard for environmental damage costs</h4> <ul><li>Full name: ISO 14008 - Monetary valuation of environmental impacts and related environmental aspects<br /><br /></li> <li>Content: A framework, processes, terms and documentation for monetary valuation of environmental damage costs <br /><br /></li> <li>Developed by: Working group WG7 within ISO TC207/SC1.<br /><br /></li> <li>Initiative taken by/participants/financiers: Swedish Life Cycle Center hosted by Chalmers University of Technology, Nouryon, Essity, Volvo Group, Vattenfall, IVL Swedish Environmental Research Institute, Nordic Investment Bank, Swedish Energy Agency, VINNOVA Sweden's innovation agency<br /><br /></li></ul> <h4 class="chalmersElement-H4">For more information, please contact</h4> <ul><li>Bengt Steen, Professor Emeritus in Environmental Science at Chalmers University of Technology and project manager, Sweden, +46 70 816 29 31, <a href="mailto:bengt.steen@chalmers.se">bengt.steen@chalmers.se</a><br /><br /> </li> <li>Sara Palander, Director of the Swedish Life Cycle Center, +46 72 352 61 25, <a href="mailto:sara.palander@chalmers.se">sara.palander@chalmers.se<br /></a><br /> </li> <li>Jimmy Yoler, Project manager SIS, Swedish Standards Insitute, +46 85 555 20 16, <a href="mailto:jimmy.yoler@sis.se">jimmy.yoler@sis.se</a></li></ul></div> <p></p>Mon, 18 Mar 2019 08:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/The-EU-pays-tribute-to-research-on-ultra-efficient-aero-engines.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/The-EU-pays-tribute-to-research-on-ultra-efficient-aero-engines.aspxUltra-efficient aero engines are praised by the EU<p><b>​Three years ago, the EU invested over EUR 3 million in innovative research on aero-engine technologies. The project abbreviated &quot;Ultimate&quot;, which was coordinated by Chalmers, is now being praised by the EU.</b></p>The project &quot;Ultra Low emission Technology Innovations for Mid-century Aircraft Turbine Engines&quot;, abbreviated &quot;Ultimate&quot; has been running for three years targeted radical concepts for new aero engines, in line with the EU’s long-term emissions reduction target for 2050.  The EU is highlighting the project as a success.  <h5 class="chalmersElement-H5">Could save 3 billion tonnes of CO2 emissions over the first 20 years after 2050 </h5> <div>To address this challenge, the ULTIMATE project has developed radical new propulsion concepts that should help the aviation industry meet the targets. The partners have studied how different technologies could be combined to work together in synergy to improve efficiency and reduce emissions. If fully implemented, the engine concepts proposed by the ULTIMATE project could save 3 billion tonnes of CO2 emissions over the first 20 years after 2050. <img src="/SiteCollectionImages/Institutioner/M2/Nyheter/tgartikel.jpg" class="chalmersPosition-FloatRight" alt="Tomas Grönstedt" style="margin:5px;width:200px;height:300px" /><br /><br /></div> <div>“The technologies combined in our new engine systems benefit one another. This is the first time that the synergies between different radical engine technologies have been explored systematically to create low-emission propulsion engines.” says project lead Tomas Grönstedt of the Department of Mechanics and Maritime Sciences at Chalmers University of Technology. </div> <div><br /></div> <div>From a long list of possible aero-engine technologies, the ULTIMATE team has focused on those that will work most effectively together. Next, the project team made system models and based on efficiency estimates for each component, they were able to accurately predict how new and existing engine system components would interact and optimise the engine performance cycles. These new jet engines could dramatically improve aircraft efficiency and reduce emissions. They may also be used in novel aircraft designs, with new fuels such as biofuels, hydrogen or methane, and together with turboelectric systems. </div> <h5 class="chalmersElement-H5">Radical engine concepts work </h5> <div>Grönstedt emphasises the importance of the project outcomes: “Radical improvements to aviation will only happen if the engineering community believes they are possible. Engineers don’t like to introduce unnecessary technical risk and they need to know that improvements can be made economically. The ULTIMATE project has indicated that such engines are feasible, which will help to increase confidence in these radical concepts.” </div> <h5 class="chalmersElement-H5">Read more </h5> <div><a href="http://ec.europa.eu/research/infocentre/article_en.cfm?artid=49940">EU Research Success Story - Synergistic jet engines for cleaner aviation  </a></div> <div><a href="/en/departments/m2/news/Pages/The-EU-commits-to-research-into-ultra-efficient-aero-engines.aspx">The EU commits to research into ultra-efficient aero engines </a></div>Fri, 08 Mar 2019 11:00:00 +0100https://www.chalmers.se/en/news/Pages/Plants,-drinking-water,-and-marine-technology-–-2019s-honorary-doctorates.aspxhttps://www.chalmers.se/en/news/Pages/Plants,-drinking-water,-and-marine-technology-%E2%80%93-2019s-honorary-doctorates.aspxPlants, drinking water, and marine technology – 2019&#39;s honorary doctorates<p><b>​Three researchers have been awarded honorary doctorates at Chalmers for 2019. Atilla Incecik is honoured for his pioneering efforts in maritime environmental research. Tomoko M Nakanishi is recognised for her interdisciplinary research on plant physiology, and developing pioneering new imaging methods, and Olof Bergstedt is awarded for his research work as an expert in safe drinking water, contributing to an overall safer supply of drinkable water.</b></p><h4 class="chalmersElement-H4">​​<span>Atilla Incecik</span></h4> <div>Atilla Incecik is a professor at the Department of Naval Architecture and Ocean Engineering at the University of Strathclyde, Glasgow. He is a leading researcher in marine technology and was formerly at Newcastle University as the holder of the Lloyd's Register Chair of Offshore Engineering. He has been a member of the Lighthouse Scientific Advisory Board for several years and has contributed constructively to the development of sustainable shipping research.</div> <div><br /></div> <div> </div> <div>Atilla Incecik is awarded an honorary doctorate for his pioneering efforts together with Chalmers researchers in maritime environmental science.</div> <div><br /></div> <div> </div> <div>He has much research experience in traditional shipbuilding and offshore construction. The shipping world first began to pay attention to environmental issues in 2005, after reports of tens of thousands of early deaths caused by emissions from ships. Around the same time, public awareness of the need to reduce CO2 emissions was increasing, and so the focus of his research area expanded to emissions reduction and energy efficiency. Meanwhile at Chalmers, the research group maritime environmental science was being established. The cooperation between the groups provided access to supplementary networks, insight into national research projects, contacts through exchange of doctoral students, participation in seminars and workshops, and several research applications.</div> <div><br /></div> <div> </div> <h4 class="chalmersElement-H4">Tomoko M. Nakanishi</h4> <div> </div> <div>Tomoko M. Nakanishi is a professor at the Graduate School of Agricultural and Life Sciences, Laboratory of Radio-Plant Physiology, The University of Tokyo, Japan. She is also Vice President of The Engineering Academy of Japan and President of The Japan Society of Nuclear and Radiochemical Sciences. Professor Nakanishi's research group is world leading in radioisotope-based imaging methods for the uptake and utilisation of water and nutrition materials in plants. Her research opens new possibilities for resource-efficient and sustainable cultivation of crops, as well as increases our understanding of the interaction of plants with radioactive substances.</div> <div><br /></div> <div> </div> <div>Tomoko M. Nakanishi is awarded an honorary doctorate at Chalmers for her outstanding interdisciplinary research on plant physiology, the development of ground-breaking new imaging methods for this purpose, as well as for surveying the agricultural and environmental consequences of the Fukushima accident and planning remediation work in the affected areas.</div> <div><br /></div> <div> </div> <div>Tomoko M. Nakanishi has an active and extensive contact list and collaborates with researchers at Chalmers and Gothenburg University. She has visited Chalmers several times and has also been hosting Chalmers researchers in Japan. She was elected as a foreign member of the Royal Swedish Academy of Engineering Sciences in 2015 and the Royal Society of Arts and Sciences in Gothenburg in 2017.</div> <div><br /></div> <div> </div> <h4 class="chalmersElement-H4">Olof Bergstedt</h4> <div> </div> <div>Olof Bergstedt holds a Master of Science degree in Engineering from Chalmers and is an adjunct professor at the Department of Architecture and Civil Engineering. He is also a drinking water specialist at Sustainable Waste and Water, City of Gothenburg. His research has focused on developing and improving drinking water preparations in waterworks, and consequently public health. He has also assisted the national water disaster group VAKA with water crises in Sweden. Olof Bergstedt has received several awards from industry and societal organisations. In particular, he was the recipient of <em>the Pumphandle Award in 2008</em>, from the John Snow Society Scandinavia, where he was praised for his research contributing to safer ​drinking water.</div> <div> </div> <div><br /></div> <div>Olof Bergstedt is awarded an honorary doctorate for his significant research work in the field of applied drinking water technology. His expertise has proven central in strengthening the collaboration between drinking water researchers at Chalmers, and water producers in Sweden and the Nordics.</div> <div><br /></div> <div> </div> <div>Olof Bergstedt completed his Master of Science degree in 1987 and has remained in contact with Chalmers ever since. He has contributed to many national and international research projects, mainly through his involvement in the research centre DRICKS at Chalmers.</div> <div> </div> <div><br /></div> <div> </div> <div>The trio will receive their awards during the Chalmers doctoral degree ceremony in Gothenburg Concert Hall in Gothenburg on May 18, 2019.</div> <div> </div> <div><br /></div> <div> </div> <div> ​</div> <div> </div>Thu, 28 Feb 2019 07:30:00 +0100https://www.chalmers.se/en/news/Pages/joint-collaboration-on-sustainable-urban-development-research.aspxhttps://www.chalmers.se/en/news/Pages/joint-collaboration-on-sustainable-urban-development-research.aspxJoint collaboration on sustainable urban development research<p><b>​Chalmers and the University of Gothenburg have decided to continue to develop the research area sustainable urban development together. The joint centre Mistra Urban Futures is now getting a changed organisational form. Both Mistra Urban Futures’ Gothenburg platform and the international secretariat will be organized within the Gothenburg Centre for Sustainable Development, GMV.</b></p>​<span style="background-color:initial">Mistra Urban Futures is an international research centre that since 2010 conducts research on sustainable urban development in close cooperation between researchers and practitioners. Chalmers has since the start been the host of the centre which now engages about 40 partners across the globe. </span><div><br /><span style="background-color:initial"></span><div>A future commission has investigated possible scenarios for the continued operations and, based on the Commission's report, the President and CEO of Chalmers and Vice-Chancellor of University of Gothenburg, have decided to continue investing in Mistra Urban Futures. The centre will continue to be a transdisciplinary research environment that addresses urban challenges in collaboration between researchers and practitioners.</div> <div><br /></div> <div>The continued operations will be organised within the joint organisation of University of Gothenburg and Chalmers: the Gothenburg Centre for Sustainable Development, GMV, which has extensive experience of conducting interdisciplinary projects, networks and activities.</div> <div><br /></div> <div>&quot;It is very welcome that Chalmers and the University of Gothenburg continues to invest jointly in sustainable urban development and that the work is now being organised within the Gothenburg Centre for Sustainable Development,&quot; says director Jan Pettersson. We work to promote collaboration between the two universities and we see many synergies with other projects within sustainable development that we run.”</div> <div><br /></div> <div>Mistra Urban Futures is organised through a international secretariat and platforms in Gothenburg,  Sheffield-Manchester, Kisumu, Cape Town, Skåne and a node in Stockholm. The decision about the continued organisation means that both Mistra Urban Futures international secretariat and the platform in Gothenburg from 15th of February 2019 will be two separate, but closely collaborating, entities within GMV. </div> <div><br /></div> <div>“We are very grateful for the hard work and dedication that has gone into the report from the Future Commision that has enable this decision from Chalmers. We also look forward to the new possibilities of having both Chalmers and the University of Gothenburg committed as co-hosts for Mistra Urban Futures”, says David Simon, Director of Mistra Urban Futures. </div> <div><br /></div> <div><strong>Read more: </strong></div> <div>Gothenburg Centre for Sustainable Development, GMV</div> <div><a href="https://gmv.chalmers.gu.se/">https://gmv.chalmers.gu.se/</a></div> <div>Mistra Urban Futures</div> <div><a href="https://www.mistraurbanfutures.org/">https://www.mistraurbanfutures.org</a></div> <div><br /></div> <div><strong>For more information, contact: </strong></div> <div>David Simon, Director, Mistra Urban Futures</div> <div>e-mail: <a href="mailto:david.simon@chalmers.se">david.simon@chalmers.se</a></div> <div>phone: + 46 708 64 27 80</div> <div><br /></div> <div>Jan Pettersson, Director, Gothenburg Centre for Sustainable Development, GMV</div> <div>e-mail: <a href="mailto:janp@chalmers.se">janp@chalmers.se</a></div> <div>phone: +46 31 772 4930</div> </div>Fri, 22 Feb 2019 13:00:00 +0100