News: Global related to Chalmers University of TechnologyWed, 27 May 2020 11:44:39 +0200 CEO of Chalmers Ventures<p><b>​After five years, Chalmers Ventures has established itself as an internationally leading incubator and investment business. Now, its focus is increasingly on deriving greater benefit from Chalmers research, and, in collaboration with other actors, building companies to address major societal challenges. The new CEO of Chalmers Ventures will be Sara Wallin, current CEO of Almi Väst.</b></p>​<span style="background-color:initial;font-size:14px">Since its founding in 2015, Chalmers Ventures has had a fantastic development, and established itself as an internationally leading incubator and investment business. In November 2019, the company was named one of the world's ten best university incubators at the World Incubation Summit in Doha, Qatar.</span><div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">Now, halfway into the ten-year establishment period, a strategic review has been conducted, and a new ownership directive has been set. The goal is that the company should, to an even higher degree, increase the societal benefit of Chalmers’ excellent research, through investments and collaboration with other actors. It is in this new, more expansive phase, that Chalmers Ventures has appointed a new CEO. </span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">Sara Wallin has had a long career in areas such as finance, entrepreneurship, venture capital, marketing and sales, with many leading and strategic roles. She has been CEO of Almi Väst since 2009 and has active board assignments for, among others, Tillväxtverket and the University of Gothenburg.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">“For me, the work that Chalmers Ventures does is a crucial piece of the puzzle for Sweden's future,” says Sara Wallin.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">“We make a difference by creating opportunities for start-up entrepreneurs and established companies to build competitive, international businesses around unique, research-based ideas. At the same time, we make a difference by having our companies tackle global and complex societal challenges, such as fighting antibiotic resistance, developing future cancer diagnostics and future energy solutions from solar cells to marine energy. I am proud to be part of all this and to be able to contribute as we go forward.”</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">With Sara Wallin at the helm, Chalmers Ventures welcomes a CEO with a wide and long-established network in business, academia and public administration, according to Johan Inden, Chair of the Board of Chalmers Ventures.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">“I feel that Sara has a genuine passion for people, a very strong sense of the future and an excellent ability to communicate and engage. We are happy to be able to welcome her here on the journey further,” says Johan Inden.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">Sara Wallin will take over as CEO by 1 December. Until then, the organisation is being led by Acting CEO Gunnar Fernström.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>Text:</strong> Christian Borg</span></div> <div><span style="font-size:14px"><strong>Photo:</strong> Anna Sigvardsson Högborg</span></div> <div><br /></div> Wed, 27 May 2020 08:00:00 +0200 receives the Win Win award<p><b>​Win win Gothenburg Sustainability Award is one of the world’s leading sustainability awards, and the prize consists of 1 000 000 SEK.​ Friday 22 May, on the International Day of Biodiversity, the Intergovernmental science-policy Platform on Biodiversity and Ecosystem Services (IPBES) was awarded this year’s Win win Gothenburg Sustainability award. Amongst other endeavours, IPBES published the report ”Global Assessment of Biodiversity and Ecosystem Services” that confirms that around one million of Earth’s estimated eight million species of plants and animals are now threatened with extinction, many within decades.​</b></p><div><span style="background-color:initial">IPBES is an intergovernmental science-policy platform and can be compared to IPCC, the Intergovernmental Panel of Climate Change. IPBES</span><span style="background-color:initial"> was founded in 2012 and the organisation is since then gathering people of knowledge and experience together with stakeholders and decision makers from all regions of the world.</span><br /></div> <div><br /></div> <div>IPBES has had a decisive role in outlining the drivers of biodiversity loss, communicating the magnitude of the problem and laying the groundwork for a new agenda. According to the Win win Award jury, IPBES’ report ”Global Assessment of Biodiversity and Ecosystem Services” from 2019,​ made information about biodiversity and ecosystems accessible to more than just experts and scientists.</div> <div><br /></div> <div>“PBES has managed to summarize and explain the importance of biodiversity and the implication of the threat against it in a way that few others have. Thanks to their work, this issue is now finally in focus and that’s why it feels great to be able to present them as this year’s winner”, says Emma Dalväg, Chairperson of the jury.</div> <h2 class="chalmersElement-H2">Connected to UN Sustainable Development Goals</h2> <div>The Win win Award has during the past years been working on integrating the United Nations Sustainable Development Goals into its annual themes. In the 2030 Agenda for Sustainable Development, two of the goals specifically targets ecosystems and biodiversity - on land and in water. Biodiversity and nature’s contributions to people are believed to be essential for the possibility to succeed in all of the 17 goals.</div> <div><br /></div> <div>As the world’s first and only intergovernmental platform for biodiversity, IPBES is providing knowledge as well as tools to protect, and sustainably access, nature’s vital resources. IPBES executive secretary Dr. Anne Larigauderie points out that it is very significant that the award has been given in 2020 – the point at which decisions are being taken about the framework for global action on nature for the next decade. </div> <div><br /></div> <div>&quot;The IPBES secretariat receives this award on behalf of our 136 member states and dedicates it to the thousands of scientists, knowledge-holders and stakeholders who have already contributed so much of their time and expertise to our work. This success is their success. This award is further proof that scientific expertise and better evidence must be at the heart of the decisions we take today about our shared future&quot;, says Dr. Anne Larigauderie.</div> <div><br /></div> <div><strong>​</strong><span style="background-color:initial"><strong>Text: </strong>Julia Jansson</span><div><strong>Photo: </strong>Unsplash/Boris Smokrovic</div></div>Mon, 25 May 2020 19:00:00 +0200 spreadable way to stabilise solid state batteries<p><b>Solid state batteries are of great interest to the electric vehicle industry. Scientists at Chalmers and Xi&#39;an Jiaotong University, China now present a new way of taking this promising concept closer to large-scale application. An interlayer, made of a spreadable, ‘butter-like’ material helps improve the current density tenfold, while also increasing performance and safety.​​​​​​​​</b></p><div><span style="background-color:initial"><img src="/SiteCollectionImages/Institutioner/F/350x305/Shizhao_Xiong_350x305.jpg" class="chalmersPosition-FloatRight" alt="Porträtt av forskaren Shizhao Xiong " style="margin:5px;width:170px;height:150px" /><div>“This interlayer makes the battery cell significantly more stable, and therefore able to withstand much higher current density. What is also important is that it is very easy to apply the soft mass onto the lithium metal anode in the battery – like spreading butter on a sandwich,” says researcher Shizhao Xiong at the Department of Physics at Chalmers.</div> <div><br /></div> <div>Alongside Chalmers Professor Aleksandar Matic and Professor Song's research group in Xi'an, Shizhao Xiong has been working for a long time on crafting a suitable interlayer to stabilise the interface for solid state battery. The new results were recently presented in the prestigious scientific journal Advanced Functional Materials.</div> <div><br /></div></span><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/solidstatebatterilabb750x.jpg" class="chalmersPosition-FloatLeft" alt="Bild från batterilabbet på Fysik på Chalmers." style="margin-top:5px;margin-bottom:5px;margin-left:10px;height:263px;width:350px" /><span style="background-color:initial"><div>Solid state batteries could revolutionise electric transport. Unlike today's lithium-ion batteries, solid-state batteries have a solid electrolyte and therefore contain no environmentally harmful or flammable liquids.</div> <div>Simply put, a solid-state battery can be likened to a dry sandwich. A layer of the metal lithium acts as a slice of bread, and a ceramic substance is laid on top like a filling. This hard substance is the solid electrolyte of the battery, which transports lithium ions between the electrodes of the battery. But the ‘sandwich’ is so dry, it is difficult to keep it together – and there are also problems caused by the compatibility between the ‘bread’ and the ‘topping’. Many researchers around the world are working to develop suitable resolutions to address this problem.</div> <div><br /></div> <div>The material which the researchers in Gothenburg and Xi'an are now working with is a soft, spreadable, ‘butter-like’ substance, made of nanoparticles of the ceramic electrolyte, LAGP, mixed with an ionic liquid. The liquid encapsulates the LAGP particles and makes the interlayer soft and protective. The material, which has a similar texture to butter from the fridge, fills several functions and can be spread easily.</div> <div>Although the potential of solid-state batteries is very well known, there is as yet no established way of making them sufficiently stable, especially at high current densities, when a lot of energy is extracted from a battery cell very quickly, that is at fast charge or discharge. The Chalmers researchers see great potential in the development of this new interlayer.</div></span><img src="/SiteCollectionImages/Institutioner/F/350x305/AleksandarMatic_200314_350x305.jpg" class="chalmersPosition-FloatRight" alt="Porträtt av professor Aleksandar Matic" style="margin:5px;height:150px;width:170px" /><span style="background-color:initial"><div><br /></div> <div>&quot;This is an important step on the road to being able to manufacture large-scale, cost-effective, safe and environmentally friendly batteries that deliver high capacity and can be charged and discharged at a high rate,&quot; says Aleksandar Matic, Professor at the Department of Physics at Chalmers, who predicts that solid state batteries will be on the market within five years.</div> <div><br /></div></span></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the scientific paper in </a><span style="font-size:10pt;background-color:initial"><a href="">Advanced Functional Materials.</a></span></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the press release and dowload high resolution images. ​</a></div> <div><span style="background-color:initial"><br /></span></div> <div><strong>Text and photo​: </strong>Mia Halleröd Palmgren, <a href=""></a></div> <div><br /></div> <div><span style="background-color:initial">Caption: </span><span style="background-color:initial">A large part of the experimental work on developing a multifunctional spreadable interlayer for the solid-state batteries of the future has been done in the battery lab at the Department of Physics at Chalmers.</span><br /></div> <div><br /></div> <h2 class="chalmersElement-H2">More on the scientific paper </h2> <div>The paper <a href="">”Design of a Multifunctional Interlayer for NASCION‐Based Solid‐State Li Metal Batteries”</a>  has been published in Advanced Functional Materials. It is written by <span style="background-color:initial">Shizhao Xiong, Yangyang Liu, Piotr Jankowski, Qiao Liu, Florian Nitze, Kai Xie, Jiangxuan Song and Aleksandar Matic. </span></div> <div>The researchers are active at Chalmers University of Technology, Xi'an Jiaotong University, China, the Technical University of Denmark and the National University of Defense Technology, Changsha, Hunan, China.</div> <div><br /></div> <h2 class="chalmersElement-H2">For more information, contact: </h2> <div><strong><a href="/en/Staff/Pages/Shizhao-Xiong.aspx">Shizhao Xiong</a></strong>, Post doc, Department of Physics, Chalmers University of Technology, +46 31 772 62 84, <a href=""> </a></div> <div><strong><a href="/en/Staff/Pages/Aleksandar-Matic.aspx">Aleksandar Matic​</a></strong>, Professor, <span style="background-color:initial">Department of Physics, Chalmers University of Technology,</span><span style="background-color:initial"> +46 </span><span style="background-color:initial">31 772 51 76, </span><a href=""> ​</a></div> <span></span><div></div> <div><br /></div> <h2 class="chalmersElement-H2">Further battery research at Chalmers​</h2> <div><a href="/en/areas-of-advance/Transport/news/Pages/Testbed-for-electromobility-gets-575-million-SEK.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Testbed for electromobility gets 575 million SEK​​</a><br /></div> <div><a href="/en/departments/physics/news/Pages/A-new-concept-could-make-more-environmentally-friendly-batteries-possible-.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />A new concept for more sustainable batteries</a></div> <div><span></span><a href="/sv/institutioner/fysik/nyheter/Sidor/Grafensvamp-kan-gora-framtidens-batterier-mer-effektiva.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" /></a><span style="background-color:initial"><font color="#5b97bf"><b><a href="/en/departments/physics/news/Pages/Graphene_sponge_paves_the_way_for_future_batteries.aspx">Graphene sponge paves the way for future batteries​</a></b></font></span></div> <div><a href="/en/departments/ims/news/Pages/carbon-fibre-can-store-energy.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" /></a><span style="background-color:initial"><font color="#5b97bf"><b><a href="/en/departments/ims/news/Pages/carbon-fibre-can-store-energy.aspx">Carbon fibre can store energy in the body of a vehicle</a></b></font></span></div> <div><a href="/en/departments/chem/news/Pages/Liquid-storage-of-solar-energy-–-more-effective-than-ever-before.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Liquid storage of solar energy – more effective than ever before</a></div>Tue, 19 May 2020 07:00:00 +0200's-technology.aspx's-technology.aspxEmissions from road construction could be halved<p><b>​The construction sector accounts for a quarter of carbon dioxide emissions, in Sweden and globally. Researchers from Chalmers University of Technology and the University of Gothenburg studied the construction of an eight km stretch of road in detail and calculated how much emissions can be reduced now and until 2045, looking at everything from materials choice, production technology, supply chains and transport.</b></p><div><span style="background-color:initial">“We identified several low hanging fruits, and if we address those first, it will become easier and cheaper to make bigger emission reductions in the future,” says Ida Karlsson, PhD student at Chalmers, and participant in the Mistra Carbon Exit project.</span></div> <div> </div> <div> </div> <div> </div> <div> </div> <div>The researchers evaluated opportunities for reducing emissions in an eight kilometre stretch of the Swedish highway 44 between Lidköping and Källby, which was finished in 2019. It was one of the Swedish Transport Agency’s first projects in which a complete climate calculation was made. All the materials and activities involved in its construction were calculated for their total climate impact – energy and materials used in the construction and what emissions these contribute to.<br /></div> <div> </div> <div> </div> <div> </div> <div> </div> <div>“We used the contractor Skanska's climate calculation as an input for breaking down emissions by materials and activities and then analysed how much they could be reduced. What materials are used? How are they produced? What alternatives are available, and how might those alternatives develop until 2045?” explains Ida Karlsson.  </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>The climate calculation showed that the contractor would be able to reduce emissions by 20 percent compared to the Swedish Transport Agency's reference values. But the researchers also demonstrated that emissions could be halved with technology already available today – and completely eliminated by the year 2045.<br /></div> <div> </div> <div> </div> <div> </div> <div> </div> <div>Ida Karlsson's research is part of the project Mistra Carbon Exit, which focuses on what are termed transformative solutions. These require both time and large investments and include, for example, production of steel, cement, concrete and asphalt without carbon dioxide emissions, as well as fossil-free or electric vehicles. Solutions are being developed and implemented, but climate-saving technologies and choices exist already today. Ida Karlsson wants to highlight four of these:</div> <div> </div> <div> </div> <div> </div> <div>• Transport optimisation</div> <div> </div> <div> </div> <div> </div> <div>• Recycling and reuse of excavation masses, asphalt and steel</div> <div> </div> <div> </div> <div> </div> <div>• Material efficiency and design optimisation</div> <div> </div> <div> </div> <div> </div> <div>• Replacement of cement clinker as a binder in concrete</div> <div><br /></div> <div> </div> <div> </div> <div> </div> <div>“If you were to optimise the transportation of materials, excavation masses and waste, for example, large gains could be made. We could be better at transport logistics in Sweden. In addition to transporting materials and waste to and from a road construction site, many movements also take place within projects,” she explains. </div> <div> </div> <div> </div> <div> </div> <div> </div> <div>The study ‘Reaching net-zero carbon emissions in construction supply chains - Analysis of a Swedish road construction project’ was published earlier this year in the journal Renewable and Sustainable Energy Reviews, and was written by Ida Karlsson together with colleague Filip Johnsson of Chalmers and Johan Rootzén, at the Gothenburg School of Business, Economics and Law.</div> <div> </div> <h2 class="chalmersElement-H2"> </h2> <div> </div> <h2 class="chalmersElement-H2">Biomass an important issue</h2> <div> </div> <div> </div> <div> </div> <div>Biomass plays an important role in both the short and long term. Many industries need biomass to reduce their emissions. It can be used for example as a fuel in the production of asphalt, cement and steel, for electricity production or as a vehicle fuel. Already today Sweden imports 95 per cent of the raw materials needed for transport biofuel because it is cheaper than using domestic material. It is hardly a sustainable solution when more and more countries import biomass. Ida believes that we need a coherent national strategy for biomass production and use.<br /></div> <div> </div> <div> </div> <div> </div> <div> </div> <div>“Where there are fossil-free alternatives, such as electrification, these should be used. But then the politics must clearly steer towards such a development. Otherwise, the biomass will simply go to the one who pays the most and not to where it would have the best use.”</div> <div> </div> <div> </div> <div> </div> <h2 class="chalmersElement-H2">Further areas for improvement</h2> <div> </div> <div> </div> <div> </div> <div>Another area for improvement could be the recycling of asphalt, explains Ida Karlsson.<br /></div> <div> </div> <div> </div> <div> </div> <div> </div> <div>“The legislation for this has recently changed but new, more efficient ways of working are not yet fully implemented. There are also different technologies to choose from depending on the quality of the tarmac, how heavy the vehicles which travel the route are and so on. Recycling requires energy but can still reduce emissions considerably, since asphalt is largely made up of bitumen, a variant of crude oil.” <br /></div> <div> </div> <div> </div> <div> </div> <div> </div> <div>Concrete is another major source of emissions. In Sweden, cement clinker is used as a binder in infrastructural concrete, but in other countries, materials such as slag from steel production or fly ash from coal-fired power plants is used as partial replacement of cement clinker, reducing emissions considerably.</div> <div> </div> <div> </div> <div> </div> <div>“Here we must dare to recognise the long positive experiences from its use in other countries, like Norway, and adopt these techniques and measures even if they have not been used before in Sweden.”</div> <h2 class="chalmersElement-H2"> </h2> <h2 class="chalmersElement-H2"> </h2> <h2 class="chalmersElement-H2"> </h2> <h2 class="chalmersElement-H2">Time to take a clear path forward</h2> <div> </div> <div> </div> <div> </div> <div>Ida Karlsson calls for clear plans, first until 2030, then onwards to 2045 as well.</div> <div> </div> <div> </div> <div> </div> <div> </div> <div>“If you already know what you want in 2030, you can make demands today. And then companies can also know that ‘OK, if we have to be able to meet these requirements by 2030, then we have the opportunity to invest in technology to achieve that’. Because large investments will be needed to change production and haulage operations. Then you have to make sure that there are requirements, needs, incentives and not least that there is climate neutral electricity available.”<br /></div> <div> </div> <div> </div> <div> </div> <div> </div> <div>“The transformative solutions - electrification, carbon capture, carbon-free steel and concrete - require time and significant investment. But if we have already picked the low hanging fruits, the cost increase for the transformative solutions need not be so great. That is why the low-hanging fruits are so important to get started with, because they make it easier cut emissions further in the future, at a lower cost.”</div> <div> </div> <div> </div> <div> </div> <div> </div> <div><div><strong>For more information, contact:</strong></div> <div>Ida Karlsson</div> <div>PhD student, Department of Space, Earth and Environment, Chalmers University of Technology</div> <div><a title="mail" href=""><span>​​</span>​</a><br /></div> <div>+46317726517</div></div> <div> </div> <div> </div> <div> </div> <div><br /> </div> <div><strong>Text: </strong>Christian Löwhagen </div>Mon, 18 May 2020 00:00:00 +0200 semester will start both on campus and remotely<p><b>In order to reduce the risk of spreading the coronavirus further, teaching in the autumn will be carried out with a mixture of remote and campus-based education. For educational and social reasons, Chalmers sees it necessary for certain parts of our education, for example laboratory exercises, simulations or group work, to be carried out on campus. Such teaching elements will therefore take place on campus, to the extent that the authorities’ recommendations allow. This applies to all Chalmers education, both undergraduate and master’s level.</b></p><div><span></span><div><span style="font-size:14px">“It is very important for us that our new students get a good start to their university studies! At Chalmers, we are now preparing our welcoming activities so that they can be carried out under the framework of recommendations from the authorities, without large gatherings and with social distancing,” says Chalmers President Stefan Bengtsson. </span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">“At the same time, our teachers are working hard to design courses and teaching elements so that they can work in a combination of remote and campus-based education. In particular, we want to ensure that out new students feel welcome and become part of the Chalmers community,” says Anna Karlsson-Bengtsson, Vice President for Education and Lifelong Learning at Chalmers. </span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">In the spring, Chalmers switched to remote education for all courses. This rapid change has been educational and has increased Chalmers' capacity to conduct good education, even remotely. This development has been very valuable and can be utilised in the planning of the autumn semester 2020.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px">Teaching elements and examinations that are considered to be important to carry out on campus may go ahead on campus. This may include, for example, laboratory work, simulations, projects or internships (VFU) and vessel-based education (FFU). The size of groups shall be evaluated in relationship to the size of the rooms being used, considering social distancing and the authorities’ recommendations. A risk analysis of those elements taking place on campus shall also be carried out. Other teaching must be carried out remotely.</span></div> <div><br /></div> <div><span style="font-size:14px">Conditions and restrictions from the authorities can change quickly, and Chalmers may need to make new decisions. If restrictions ease or end, more of the teaching can be conducted on campus.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>New Chalmerists will be able to be introduced to Chalmers life</strong></span></div> <div><span style="font-size:14px">In order for new students starting their undergraduate education, including the Technical Preparatory Year or Ship’s Officer training, Class VII, to be well-familiarised to studying and student life at Chalmers, teaching and introductions for new students will be given prominence in the planning and execution of campus-based elements. Social student-welcoming activities on campus may only happen if they can be carried out with social distancing and following the restrictions from the authorities.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>International students will be able to participate remotely</strong></span></div> <div><span style="font-size:14px">Depending on the global situation by the autumn, it may be impossible, difficult or too expensive for accepted international students to travel to Sweden for the start of the semester, due to travel restrictions. It may also be difficult to get residence permits in time. Therefore, for international students who cannot be on campus from the beginning of the autumn term, all activities that take place on campus should also be possible to participate in remotely.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>Tuition fees for international students can be refunded</strong></span></div> <div><span style="font-size:14px">Fee-paying international students who have paid tuition fees for the autumn semester 2020, but who, due to current circumstances, choose not to attend Chalmers this autumn, can get their tuition refunded. An application for reimbursement must be submitted to Chalmers by 31 August 2020. This also applies to second-year students, if they do not want to continue their education during the autumn semester.</span></div> <div><span style="font-size:14px">A decision on whether inbound and outbound student exchanges can go ahead during the autumn semester 2020 will be shortly.</span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><strong>Read more</strong></span></div> <div><span style="font-size:14px">At <a href="/sv/nyheter/info/Sidor/default.aspx"></a>, you can find collected information and advice regarding the situation with Covid-19. The information will be updated continuously. </span></div> <div><span style="font-size:14px"><br /></span></div> <div><span style="font-size:14px"><a href="/en/news/corona-virus/Pages/for-newly-admitted-students.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Questions concerning this decision can be found in our FAQ​</a>.</span></div></div> <div><br /></div> <div><strong>​Text:</strong> Sophia Kristensson<br /></div> <div><strong>Photo: </strong>Johan Bodell</div> <p class="MsoNormal"><i><span lang="EN-GB"> </span></i></p>Sun, 17 May 2020 15:30:00 +0200 opportunities to study at Chalmers<p><b>As a result of the coronavirus pandemic, Chalmers will offer summer courses in both English and Swedish this year.</b></p><div>Chalmers, with support of the government, takes its social responsibility and will offer more chances to be able to study this summer. </div> <div><br /></div> <div>“We know there will be an urge for something meaningful <span style="background-color:initial">to</span><span style="background-color:initial"> </span><span style="background-color:initial">do</span><span style="background-color:initial"> </span><span style="background-color:initial">during the</span><span style="background-color:initial"> summer</span><span style="background-color:initial"> for people who have not found a summer job or have been laid off. A summer course to complement your education or to get knowledge in a whole new field can be very valuable. And since we are able to, we definitely want to contribute to that”, says Anna Karlsson-Bengtsson, Vice President of Education and Lifelong Learning at Chalmers.</span></div> <div><br /></div> <div><div><span style="font-weight:700">Summer courses</span> – We will offer digital, summer courses in fields such as project management and real estate finance. Keep up to date when we open for registration for summer courses via the link below.</div> <a href="/en/education/for-working-professionals/Pages/Summer-courses-2020.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" /></a><div style="display:inline !important"><a href="/en/education/for-working-professionals/Pages/Summer-courses-2020.aspx">Read more about our summer courses</a></div> <br /></div> <div><br /></div> <div>Text: Vedrana Sivac / Helena Österling af Wåhlberg</div>Fri, 15 May 2020 08:00:00 +0200 increases the number of solar panels on Swedish rooftops<p><b>​A new study from Chalmers University of Technology found that an information campaign led to a significant increase in the number of residential solar photovoltaic (PV) adoption in Sweden. The results have now been published in a scientific journal.</b></p>​<span style="background-color:initial">Chalmers researchers Alvar Palm and Björn Lantz, at the Department of Technology Management and Economics, have studied the effect of a Swedish information campaign for solar photovoltaics (PV) adoption that took place in Sweden in 2017. The campaign was led by municipal energy advisers. </span><div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">The campaign's goal was to increase the number of solar PV adoption on residential roofs in Sweden by providing information and raising awareness through seminars and individual counseling to homeowners. The initiative was carried out in more than 100 municipalities. </span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">&quot;Information initiatives promoting sustainable behavior are common. However, little is known about whether the campaigns work as intended. It is a complex topic to study, as it is difficult to know how the actual behavior of the target group changes after they have learned the information&quot;, says Alvar Palm.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">The researchers' analysis shows that the campaign significantly increased the number of solar PV adoption in the participating municipalities. During the campaign, the number of submitted and approved subsidy applications for solar PV adoption increased by 29 percent in the participating municipalities, compared to other municipalities. </span><span style="background-color:initial">The results still stand, even after removing applications that did not lead to an installation.​</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">The study has now been published in the scientific journal Energy Policy.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><div><span style="background-color:initial">&quot;In the article, we argue, based on the results, that information campaigns can be a cost-effective way to increase the number of solar cells around the world and reduce carbon dioxide emissions in the energy sector&quot;, says Alvar Palm.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"></span></div> <div><span style="background-color:initial"><img src="/en/departments/tme/news/Documents/AlvarPalm_BjörnLantz_650x240px.jpg" alt="AlvarPalm_BjörnLantz_650x240px.jpg" class="chalmersPosition-FloatLeft" style="margin:5px;width:540px;height:200px" /><br /></span>​</div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">Ch</span><span style="background-color:initial">almers researchers Alvar Palm and Björn Lantz.</span><br /></div> <div><span style="background-color:initial"><em>Photo: Ulrika Ernström and </em></span><span></span><span style="background-color:initial"><em>Oscar Mattsson​ respectively.</em></span></div> <em> </em><h3 class="chalmersElement-H3">About the study</h3> <div> </div> <div>In the study, Alvar Palm and Björn Lantz examined the effects of solar photovoltaics (PV)</div> <div> </div> <div>information campaign conducted in 2017 by municipal energy advisers in more than 100 municipalities. The outcome of the campaign in these municipalities was compared with other municipalities in a regression model with control variables.</div> <div> </div> <div><br /></div> <div> </div> <div>The analysis considered a set of control variables, such as irradiance (the amount of sunshine), population density, percental of green party support, the proportion of detached homes, and average income. The researchers also ensured that the installations were not more frequent in the participating municipalities even before the campaign.</div> <div> </div> <div><br /></div> <div> </div> <div>The increase in the number of solar photovoltaic adoptions also stands after the removal of applications that did not lead to confirmed installation. As the subsidy is generous and relatively easy to apply, the researchers estimate that the number of applications granted well reflects the number of actual installations. This is also shown by previous experience.</div> <div> </div> <div><br /></div> <div> </div> <div>Finally, it was ensured that the number of installations did not decrease under normal conditions after the end of the campaign, which could have indicated that the observed effect did not reflect a real increase but merely a displacement of time for the installations. All in all, the researchers believe that the evidence is strong for the observed effect to be real.</div> <h3 class="chalmersElement-H3"><span>Article</span></h3> <div><span style="background-color:initial;color:rgb(33, 33, 33)">Palm, A., Lantz, B., 2020. <a href="" target="_blank">&quot;Information dissemination and residential solar PV adoption rates: The effect of an information campaign in Sweden&quot;</a>. Energy Policy, vol. 142. </span><span style="background-color:initial;color:rgb(33, 33, 33)">(article free to read until 24 June)</span><span style="background-color:initial;color:rgb(33, 33, 33)"> </span></div> <h3 class="chalmersElement-H3">Contact</h3> <div> </div> <div><a href="/en/staff/Pages/alvar-palm.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Alvar Palm</a></div> <div> </div> <div><a href="/en/staff/Pages/lantzb.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Björn Lantz​</a></div> <div> </div></div>Mon, 11 May 2020 10:00:00 +0200 mechanical phase forms a crystal<p><b>​Researchers at Chalmers University of Technology in Sweden and Montana State University in the US have developed a theory that derives a so-called &quot;phase crystal&quot;, that elicits spontaneous magnetic fields and circulating currents. The theory predicts when a phase crystal can arise, explaining previous numerical results, and is presented in an article recently published in the scientific journal Physical Review Research.</b></p><div>Quantum mechanical states are described by a complex-valued wave function, which similar to a wave has both an amplitude and a phase. In contrast to a classical wave, the amplitude and phase of the wave function are related to purely quantum mechanical phenomena which lack an analogue in classical physics.</div> <div> </div> <div>“A perfect example is superconductivity, which is a quantum-mechanical state that arises in certain materials due to electron pairing. The pairs have a quantum-mechanical wave function with an amplitude corresponding to the pair density, and a phase which is related to the pair momentum. The pairs move like an inviscid fluid through the material, with zero electrical resistance”, explains Patric Holmvall (below to the left), researcher at the Applied Quantum Physics Laboratory at MC2, and the lead author of the article.</div> <div> </div> <div><img src="/SiteCollectionImages/Institutioner/MC2/News/pholmvall_350x305.jpg" alt="Picture of Patric Holmvall." class="chalmersPosition-FloatLeft" style="margin:5px" />The researchers’ study shows that in certain superconductors with pathological edges that destroy superconductivity, the kinetic energy can change sign and become favorable as it “heals” the destroyed superconductivity. </div> <div>“We find that the phase crystallizes and form a periodic pattern, which in turn creates a checker-board pattern of circulating currents and spontaneous magnetic fields”, says Patric Holmvall.</div> <div> </div> <div>Currents and magnetic fields usually only enter superconductors under external influence and perturbations, but now arise spontaneously. This is an example of spontaneous pattern-formation, where inhomogeneities which usually cost energy instead heal a destroyed system. </div> <div>“We have derived the conditions for phase crystallization and use a microscopic theory to show that these conditions are satisfied in for example the material YBCO. Our theory combines and explains a number of theoretical studies reaching all the way back to the 1990s, in particular our previous numerical results, which were recently published in Nature Physics and Nature Communications”, says Patric Holmvall.</div> <div> </div> <div>The researchers' studies show that phase crystals represent a unique class of inhomogeneous ground states. </div> <div>“To derive the conditions for phase crystallization, we had to generalize the commonly used Ginzburg-Landau theory, to take into account non-local interactions. Since this theory is used not just to study superconductivity, but also in, for instance, biological physics and liquid crystals, we think that new interesting phenomena might be discovered within these disciplines through a similar generalization”, says Patric Holmvall.</div> <div> </div> <div>The new study has several connections to previous research at Chalmers. Patric Holmvall gives examples of the beautiful patterns found in liquid crystals, the organization of cells and bacteria in thin films, or structural coloration and iridescence in plants and animals, the latter caused by so-called photonic structures. These exemplify how surface interactions can trigger spontaneous pattern formation.</div> <div> </div> <div>In addition to Patric Holmvall, the Chalmers professors Mikael Fogelström and Tomas Löfwander, as well as Anton Vorontsov at Montana State University in the US, have co-authored the article “Phase crystals”. It was highlighted as Editor's Suggestion, where extra interesting and well-written articles are selected.</div> <div> </div> <div>Text: Michael Nystås</div> <div>Illustration: Patric Holmvall</div> <div>Photo of Patric Holmvall: Kevin Marc Seja</div> <div> </div> <div><strong>Contact:</strong></div> <div>Patric Holmvall, Applied Quantum Physics Laboratory, Department of Microtechnology and Nanoscience – MC2, Chalmers University of Technology, </div> <div> </div> <div><a href="">Read the article in Physical Review Research</a> &gt;&gt;&gt;</div> <div> </div> <h3 class="chalmersElement-H3">FACTS ABOUT PHASE CRYSTALS</h3> <div>Phase crystals differ from other inhomogeneous superconducting states (e.g. Abrikosov-vortices and the Fulde-Ferell-Larkin-Ovchinnikov state), as they appear mainly at low temperatures even in the absence of external magnetic fields. Furthermore, an analysis of the free energy shows that it is mainly the phase rather than the amplitude which drives and characterizes the phase transition, in contrast to the traditional picture in superconductivity.</div> <div> </div> <h3 class="chalmersElement-H3">FACTS ABOUT SUPERCONDUCTORS</h3> <div>The superconducting ground state is characterized by the pair wave function, with an amplitude proportional to the pair density, and where variations in the phase are proportional to both the pair momentum and the electromagnetic potential. For a given system, the wave function assumes the amplitude and phase with the lowest free energy. Since pairs with a finite momentum (i.e. finite variations in the phase) lead to a kinetic energy, the ground state normally assumes a uniform phase without variations. The ground state is thereby mainly characterized by the amplitude and has zero kinetic energy.</div> <div> </div> <h3 class="chalmersElement-H3">RELATED CHALMERS RESEARCH</h3> <div><strong>Associate Professor Per Rudquist's Liquid Crystals Research:</strong></div> <div><a href=""></a> </div> <div> </div> <div><strong>Photonic Structures - research at the Photonics Laboratory, among others:</strong></div> <div><a href=";query=photonic+structures">;query=photonic+structures </a></div> <div> </div> <div><strong>The conditions for the formation of phase crystals are fulfilled in, for example, superconductors of the material YBCO:</strong></div> <div> </div> <div>Gustafsson, D., Golubev, D., Fogelström, M. et al. Fully gapped superconductivity in a nanometre-size YBa2Cu3O7–δ island enhanced by a magnetic field. Nature Nanotech 8, 25–30 (2013). <br /><a href=""> </a></div> <div> </div> <div><strong>The theory combines and explains a number of theoretical studies since the 1990s, especially previous numerical results:</strong></div> <strong> </strong><div><strong> </strong></div> <strong> </strong><div><strong>High temperature superconductors can fulfill the hairy ball theorem</strong></div> <div>The hairy ball theorem in mathematics says that one cannot comb a hairy ball smoothly without forming a vortex. One consequence of this is that there must always be at least one cyclone somewhere on earth. In 2018, researchers at Chalmers conducted a theoretical study of high-temperature superconductors and concluded that there is a low-temperature phase at the edges of the material described by an order parameter, a two-dimensional vector field, which must also fulfill a variant of the hairy ball theorem.</div> <div> </div> <div>Holmvall, P., Vorontsov, A.B., Fogelström, M., and Löfwander, T., Broken translational symmetry at edges of high-temperature superconductors, Nature Communications 9, 2190 (2018).</div> <div><a href=""></a> </div> <div> </div> <div><strong>A necklace of fractional vortices</strong></div> <div>Researchers at Chalmers have arrived at how what is known as time-reversal symmetry can break in a class of superconducting materials. Small circulating currents and magnetic fields are created at their edges. Adjacent circulating currents have opposite circulation, which generates magnetic fields of opposite sign. This effect causes the material to appear to have been dressed with a necklace of small magnetic fluxes.</div> <div><a href="/en/departments/mc2/news/Pages/A-necklace-of-fractional-vortices.aspx"> </a></div> <div> </div> <div>Håkansson, M., Löfwander, T. and Fogelström, M. (2015) Spontaneously broken time-reversal symmetry in high-temperature superconductors, Nature Physics (1745-2473), Vol. 11 (2015), 9, pp. 755-760.</div> <div><a href=""></a></div>Fri, 08 May 2020 09:00:00 +0200 effects of fibre rich diets depend on gut microbiota<p><b>​Foods rich in wholegrains have been associated with lower risk of developing type 2 diabetes and cardiovascular disease. However, the content of dietary fibre and bioactive compounds, such as lignans, differ between cereals.  In a new study, researchers from Chalmers University of Technology show that wholegrain rye lowers serum LDL-cholesterol compared to wholegrain wheat. The effect was linked to the composition of the gut microbiota of the individual. There was no difference in glucose metabolism between wheat and rye diet, and lignan supplementation did not affect any parameter. ​</b></p><p class="chalmersElement-P">​<span>High wholegrain intake is associated with lower risk of developing non-communicable diseases such as type 2 diabetes and cardiovascular disease. In a new study, recently published in <em>The American Journal of Clinical Nutrition</em>, effects on metabolic parameters and risk factors was assessed between wholegrain wheat and rye for the first time, in subjects with so-called metabolic syndrome. People with metabolic syndrome have increased risk of cardiovascular disease and have elevated risk factors such as high blood pressure, high levels of blood cholesterol, obesity or abdominal obesity.</span></p> <div> </div> <h2 class="chalmersElement-H2"><span>​Lignan supplements to rye diet<br /></span></h2> <div> </div> <p class="chalmersElement-P">There is a difference of dietary fibre quality in wholegrain wheat and rye, and the cereals also have different contents of bioactive compounds. Rye has the highest content of both dietary fibres and bioactive compounds. For example, wholegrain rye is rich in lignans, so-called phytoestrogens, which are substances that are similar to the hormone oestrogen. </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">Various studies have shown that lignans have protective effects against the risk of developing hormone-dependent cancers, such as breast cancer and prostate cancer. Recently, several studies have also shown that the levels of enterolactone and entradiol, molecules formed by the gut microbiota when degrading plant-based phytoestrogens, are strongly linked to reduced risk of developing type 2 diabetes.</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">&quot;We wanted to see if supplementation of lignans could enhance the effect of wholegrain rye. We added more lignans to the subjects' rye diet than any other study has done so far, and we measured the highest levels ever detected of enterolactone and enteradiol in humans. Despite this, we saw no effects on glucose turnover and metabolic risk factors. This is an indication that phytoestrogens are not enhancing the positive effects of the rye,&quot; says Rikard Landberg, Professor of Food and Nutritional Science at Chalmers.</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p></p> <div> </div> <h2 class="chalmersElement-H2">Lower cholesterol levels dependent on gut microbiota</h2> <div> </div> <p></p> <div> </div> <p class="chalmersElement-P">The researchers showed, though, that cholesterol blood levels can be lowered with the intake of wholegrain rye. This has also been confirmed in recent, unpublished, studies. In addition, they discovered that the decrease of cholesterol levels was dependent on the subjects’ gut microbiota in the beginning of the trial. This provides a possible mechanistic link between dietary fibre-rich foods, microbiota and lipid metabolism.</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">&quot;More studies are needed to investigate the mechanisms behind these results. Interestingly, only one of three enterotypes, (i.e. the sets of microorganisms found in the gut), was linked to lowering cholesterol levels. This may be the result of high levels of short chain fatty acids generated by this enterotype. <span style="background-color:initial">There have been drug development studies where the gut microbiota was shown to boost the effect of lipid-lowering drugs. But the exact role of gut microbiota in the cholesterol turnover is still to be unrevealed a</span><span style="background-color:initial">nd more studies are needed,&quot; says Rikard Landberg.</span></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">The cholesterol levels of the subjects were, however, back to normal after four to eight weeks.</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">&quot;We have seen this in other studies as well. This may be due to the subjects getting tired of eating the intervention diet, in other words lack of compliance. It might also happen because, for some reason, you get an adaptation effect,&quot; says Rikard Landberg.</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p></p> <div> </div> <h2 class="chalmersElement-H2">Want to investigate the potential of enterotype adapted diet</h2> <div> </div> <p></p> <div> </div> <p class="chalmersElement-P">New studies focus on screening individuals with different enterotypes and evaluating the effects of fermentable fibres compared to non-fermentable fibres on metabolic risk factors across enterotypes. The researchers hope this will confirm the results from the recently published study. They will also get an estimate of how much greater the potential for prevention is with a diet adapted for the gut microbiota compared to diet that is not.</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">The current study was a collaboration between researchers at the Department of Biology and Biotechnology at Chalmers University of Technology, the Danish Cancer Society Research Center in Copenhagen, Denmark, Uppsala University and Aarhus University, Denmark.</p> <p class="chalmersElement-P"> </p> <p></p> <p class="chalmersElement-P"><span><strong>​Text: </strong></span><span>Susanne Nilsson LIndh​</span></p> <p></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><br /></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>The study</strong></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"></p> <div> </div> <ul><li>40 men with a risk profile for metabolic syndrome were randomly assigned diets of wholegrain rye or wholegrain wheat in an 8-week crossover study, in which all subjects received both treatments but in reverse order.</li> <li>The rye diet was supplemented with additions of lignans at weeks 4–8.</li></ul> <div> </div> <p></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><br /></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong>Read the article in </strong><em><strong>The America Journal of Clinical Nutrition</strong></em></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><a href="" style="background-color:rgb(255, 255, 255)"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /></a><span style="color:rgb(51, 51, 51)"> </span><a href="" style="background-color:rgb(255, 255, 255)">Effects on whole-grain wheat, rye, and lignan suplementation on cardiometabolic risk factors in men with metabolic syndrome: a randomized crossover trial</a><br /></p> <div> </div> <p class="chalmersElement-P"></p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P"><strong style="background-color:initial">Also read </strong><br /></p> <div> </div> <p class="chalmersElement-P"><a href="" style="outline:0px"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /></a><span style="background-color:initial"> ​</span><a href="/en/departments/bio/news/Pages/Wholegrains-important-for-preventing-type-2-diabetes.aspx">Wholegrains important for preventing type 2 diabetes</a></p> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <div> </div> <div> </div> <div><br /></div> <div> </div> <div> </div>Thu, 07 May 2020 16:00:00 +0200 approval of locomotives enables more goods by rail<p><b>​Thanks to experience and knowledge built up within the Chalmers Railway Mechanics competence center, numerical tools were able to replace expensive geotechnical investigations. This gave Green Cargo the clear sign to use stronger locomotives, with just a few restrictions from the Swedish Transport Administration.</b></p>​In the short term, it means millions of Swedish crowns in savings. In the longer term, it strengthens the competitiveness of train transport and enables the transfer of transport from road to rail. This means reduced carbon dioxide emissions for heavier transport. <div><br /></div> <div>The classification of railway vehicles affects the distances they can operate. The freight train operator Green Cargo needed to install locomotives with greater traction to get a reasonable economy in their freight transport. This meant that heavier locomotives with three-axis bogies would have to operate lanes that were normally operated by lighter, two-axis locomotives. However, the Swedish Transport Administration could not allow the heavier three-axis locomotives to traffic the lanes if the safety could not be guaranteed. The situation was so critical that it became a standing point at the meetings between the Swedish Transport Administration's Director General and Green Cargo's CEO. </div> <div><br /></div> <div>The classification of Green Cargo's three-axis locomotive meant that the locomotive was in a higher class than many lanes have been classified for, which could mean low operating speeds. For bridges, calculation tools are available to analyze the impact of specific vehicles, but for geotechnics the situation was more complicated. An analysis may require expensive and cumbersome soil samples and the remaining geotechnical restrictions were numerous. <img src="/SiteCollectionImages/Institutioner/M2/Nyheter/andersekberg.jpg" class="chalmersPosition-FloatRight" alt="Anders Ekberg" style="margin:5px" /><br /><br /></div> <div><span style="background-color:initial">Anders Ekberg is the director of the competence center Chalmers Railway Mechanics (Charmec). He says that the main challenge for Charmec was to understand the problem. But with the help of the contacts and the understanding built up between Charmec's partners, a solution was soon to be found. </span><br /></div> <div><br /></div> <div>“In a few meetings with intermediate analyzes, we were able to gain insight through the experience and knowledge we have gained in previous projects. Once the solution method was identified, we could relatively easily reach a solution using our numerical tools” says Anders Ekberg. </div> <h2 class="chalmersElement-H2"><span>In-house models from Chalmers provided a solution</span><span>​</span></h2> <div>The researchers from Chalmers proposed a comparative analysis between the stress resulting from a two-axis locomotive and that of a three-axis locomotive. Using in-house models their analysis showed that the marginally lower load per axis of the locomotive actually made the resulting stress in the ground lower for the three-axis locomotive despite this loco having an additional axle. To further analyze load, the Swedish Transport Administration conducted a dynamic analysis using software developed within Charmec.​</div> <div><br /></div> <div>“The analysis supported the conclusion that the locomotives provided a lower load on filling material and the underlying soil. The Swedish Transport Administration was now able to reduce the number of restrictions for Green Cargo's three-axis locomotives” says Ibrahim Coric head of Maintenance Railway system Permission Construction at the Swedish Transport Administration. </div> <div><br /></div> <div>Markus Gardbring is head of Green Cargo's operations and believes that it is of great importance for their operations. </div> <div><br /></div> <div>&quot;Green Cargo can now use stronger locomotives and demolish a large number of circulations for a number of larger customers, which leads to more efficient freight transport and is a prerequisite for us to be able to have more goods on the railway&quot; says Markus Gardbring. </div> <h2 class="chalmersElement-H2"><span>Contributes to reduced carbon dioxide emissions</span><span>​</span></h2> <div>Another benefit is that heavier locomotives with more redundant traction slip less, which reduces maintenance costs. Markus Gardbring also sees gains in the longer term. The Swedish rail network is being rebuilt to allow longer trains. The Swedish government has decided to reduce 70 percent of all carbon dioxide emissions for heavier transport by 2030. The segment that can easily be transferred to rail is intermodal goods. Longer trains are more cost-effective and a prerequisite for enabling competition with trucks in an extremely competitive market. The traction force of the locomotive will be decisive as the weight rather than the length becomes limiting for the number of wagons per train.</div> <h2 class="chalmersElement-H2">Read more about Charmec</h2> <div><a href="/en/departments/m2/news/Pages/Railway-researchers-awarded-for-societal-impact.aspx">Railway researchers awarded for societal impact​</a><br /></div> <div><a href="/en/departments/m2/news/Pages/European-railway-harmony-better-for-the-climate.aspx">European railway harmony is better for the climate​</a><br /></div> <div><a href="/en/departments/m2/news/Pages/Prediction-of-cracking-increases-the-railway%27s-reliability.aspx">Prediction of cracking increases the railway's reliability​</a><br /></div> <div><a href="/en/departments/m2/news/Pages/CHARMEC---A-prerequisite-for-a-functioning-railway.aspx">CHARMEC - A prerequisite for a functioning railway​</a><br /></div>Wed, 06 May 2020 00:00:00 +0200 produce aprons for the healthcare system<p><b>​In a room at Johanneberg Science Park on Chalmers campus, volunteers are making protective aprons for the healthcare system. In two weeks, over 2000 aprons have been produced.“We can see that our initiative is helping,” says Carl Strandby, a student at Chalmers University of Technology.</b></p><div>​<span style="background-color:initial">Förklädeshjälpen (The Apron Help) started 17 April when a group of people came together to try to help the healthcare system during the corona crisis, by producing protective equipment other than visors. They quickly got the opportunity to house the initiative in a newly renovated room at Johanneberg Science Park, and just hours after they had gained access to the room, the production of protective aprons was up and running. One of the initiators is Carl Strandby, who is studying Engineering Physics at Chalmers.</span><br /></div> <div><span style="background-color:initial"><br /></span></div> <span></span><div>“Many people are worried and scared when everything feels uncertain, and we want to show how to turn that worry into something productive where we work together to find solutions. There is also a responsibility in this kind of situation, you cannot just rely on others to take care of everything, you need to think about how you can help,” says Carl Strandby.</div> <h2 class="chalmersElement-H2">Helps health centers and retirement homes</h2> <div>On the first day of production, Förklädeshjälpen produced 100 aprons, and just over two weeks later, they have produced over 2000. The aprons go to health centers and retirement homes that work with corona infected patients. The initiative consists of a core group of about 10 people and, in addition, about 100 people have done at least one shift at Förklädeshjälpen, and three or four new people come every day.</div> <div><br /></div> <div>“We can see that our initiative is helping. Some people who come here to collect aprons, for retirement homes for example, say that they do not have any aprons at all, so it shows that initiatives such as Förklädeshjälpen are needed,” says Carl Strandby.</div> <h2 class="chalmersElement-H2">Plastic aprons with &quot;welded&quot; seams</h2> <div>When the volunteers come to help produce aprons, they first have to prepare by washing their hands and using disinfectant. The actual production consists of cutting out patterns from a plastic roll according to a template. They have received the templates from their sister initiative in Stockholm. Heat guns and irons are used to fuse the sleeves in the plastic, and then the aprons are folded together and packed in boxes. They always wait three days before delivering the finished aprons to the health care, to avoid the spread of infection.</div> <div><br /></div> <div>In a Facebook group, Förklädeshjälpen continuously shares information about the initiative and this is also where you sign up for shifts.</div> <div><br /></div> <div>“There is still a great need for aprons, and we will continue to produce them as long as there is a demand,” says Carl Strandby.</div> <div>​<br /></div> <div><strong>Text: </strong>Sophia Kristensson</div> <strong><div><strong><br /></strong></div> Read more:</strong> <a href="/en/news/Pages/Students-supply-staff-in-the-west-with-visors.aspx" target="_blank">Students supply staff in the west with visors​</a>Wed, 06 May 2020 00:00:00 +0200 keeps the highest mark in internationalisation<p><b>​Chalmers retains its position as one of Sweden&#39;s most international universities. For the fourth year in a row, Chalmers is awarded the highest mark by The Swedish Foundation for International Cooperation in Research and Higher Education, Stint, presenting its Internationalisation Index for 2020.</b></p>​<span style="background-color:initial">The index is based on six different dimensions related to research, access to education in a language other than Swedish, and students and employees' international mobility. The index measures a total of 28 universities in Sweden and as one of three universities, Chalmers receives five out of five stars.</span><div><br /><span style="background-color:initial"></span><div>“We are happy to maintain our position as a very internationalised university. The award is a mark on Chalmers' long-term work on internationalisation. We work strategically to recruit internationally, both Researchers as well as Postdocs and Assistant Professors. It creates an international environment at Chalmers and strengthens our international collaborations,” says Stefan Bengtsson, President and CEO at Chalmers.</div> <div><br /></div> <div>For Chalmers, one of the factors that has created an international environment on campus is that all Master Programmes except one are taught in English, where Swedish programme students and international students study together. Chalmers' work with various international networks also strengthens research, innovation and education in various ways.</div> <div><br /></div> <div>“With the pandemic, climate crisis and trends of decreasing globalisation, the coming years will present a challenge to internationalisation more broadly and also here at Chalmers. We will endeavour to maintain strong international ties, even as some different solutions may be needed in the future. Internationalisation is important to Chalmers,” says Stefan Bengtsson.</div> <div><br /></div> <div>Stint has developed the index to promote a fact-based discussion about internationalisation and to show development. New for this year is also that Stint has made overviews of each university that show the development of the university in relation to the different dimensions of the index. For Chalmers, this shows, among other things, that the share of faculty with PhDs from abroad is increasing.</div> <div><br /></div> <div>In addition to Chalmers, KTH and Stockholm School of Economics received five stars in the index.</div> <div><br /></div> <div><strong>Text:</strong> Sophia Kristensson</div> <h3 class="chalmersElement-H3">Read more</h3> <div><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />How international are Swedish universities? New data from STINT​</a>, Stint website.<br /></div> </div>Tue, 05 May 2020 00:00:00 +0200 prostheses that “feel” for real<p><b>For the first time, people with arm amputations can experience sensations of touch in a mind-controlled arm prosthesis that they use in everyday life. Three Swedish patients have lived, for several years, with this new technology – one of the world’s most integrated interfaces between human and machine. ​</b></p>​<span style="background-color:initial">The advance is unique: the patients have used a mind-controlled prosthesis in their everyday life for up to seven years. For the last few years, they have also lived with a new function – sensations of touch in the prosthetic hand. This is a new concept for artificial limbs, which are called neuromusculoskeletal prostheses – as they are connected to the user’s nerves, muscles, and skeleton.</span><div><br /></div> <div><a href="" target="_blank">A study in the New England Journal of Medicine</a> reports that these prostheses have a natural function in the patients' daily lives.</div> <div><br /></div> <img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Ny%20teori%20om%20fantomsmärtor%20visar%20vägen%20mot%20effektivare%20behandling/max_ortiz_catalan_250px.jpg" class="chalmersPosition-FloatRight" alt="Max Ortiz Catalan" style="margin:5px;height:252px;width:215px" /><div>The research was led by <a href="/en/Staff/Pages/max-jair-ortiz-catalan.aspx">Max Ortiz Catalan</a>, Associate Professor at Chalmers University of Technology, in collaboration with <a href="" target="_blank">Sahlgrenska University Hospital​</a>, <a href=";disableRedirect=true&amp;returnUrl=" target="_blank">University of Gothenburg</a>, and <a href="" target="_blank">Integrum AB</a>, all in Gothenburg, Sweden. Researchers at <a href="" target="_blank">Medical University of Vienna</a> in Austria and the <a href="" target="_blank">Massachusetts Institute of Technology​</a> in theUSA were also involved.</div> <div><br /></div> <div><span style="background-color:initial">Our study shows that a prosthetic hand attached to the bone and controlled by electrodes implanted in nerves and muscles can operate much more precisely than conventional prosthetic hands. We further improved the use of the prosthesis by integrating tactile sensory feedback that the patients use to mediate how hard to grab or squeeze an object. Over time, the ability of the patients to discern smaller changes in the intensity of sensations has improved,” says Max Ortiz Catalan. </span><br /></div> <div><br /></div> <img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Tankestyrda%20armproteser%20med%20känsel%20har%20blivit%20en%20del%20av%20vardagen/patient_340x500px.jpg" class="chalmersPosition-FloatLeft" alt="Patient with a prosthetic arm" style="margin:5px;height:388px;width:260px" /><div>“The most important contribution of this study was to demonstrate that this new type of prosthesis is a clinically viable replacement for a lost arm. No matter how sophisticated a neural interface becomes, it can <span style="background-color:initial">only deliver real benefit to patients if the connection between the patient and the prosthesis is safe and reliable in the long-term. Our results are the product of many years of work, and now we can finally present the first bionic arm prosthesis that can be reliably controlled using implanted electrodes, while also conveying sensations to the user in everyday life&quot;, continues Max Ortiz Catalan.</span></div> <div><br /></div> <div>​Since receiving their prostheses, the patients have used them daily in all their professional and personal activities.</div> <div><br /></div> <div><br /></div> <div><em style="background-color:initial">One of the patients in the study has had his mind-controlled arm prosthesis since the beginning of 2017, with artificial sensation since September 2018. </em><br /></div> <div><div><em>“The prosthesis has changed my life a lot,” he says. “The traditional socket prosthesis I had before was a tool I wore. The new prosthesis does not feel like something I wear but as part of me. I use it all day, so for me it's so natural, it's not something I really think about.”</em></div> <div><br /></div> <div><strong style="background-color:initial">This makes the prosthesis unique</strong><br /></div></div> <div>The new concept of a neuromusculoskeletal prosthesis is unique in that it delivers several different features which have not been presented together in any other prosthetic technology in the world:</div> <div><ul><li>It has a direct connection to a person's nerves, muscles, and skeleton.</li> <li>It is mind-controlled and delivers sensations that are perceived by the user as arising from the missing hand.</li> <li>It is self-contained; all electronics needed are contained within the prosthesis, so patients do not need to carry additional equipment or batteries.</li> <li>It is safe and stable in the long-term; the technology has been used without interruption by patients during their everyday activities, without supervision from the researchers, and it is not restricted to confined or controlled environments.<br /></li></ul> <div><div>The newest part of the technology, the sensation of touch, is possible through stimulation of the nerves that used to be connected to the biological hand before the amputation. Force sensors located in the thumb of the prosthesis measure contact and pressure applied to an object while grasping. This information is transmitted to the patients’ nerves leading to their brains. Patients can thus feel when they are touching an object, its characteristics, and how hard they are pressing it, which is crucial for imitating a biological hand.</div> <div><br /></div> <div>“Currently, the sensors are not the obstacle for restoring sensation,” says Max Ortiz Catalan. “The challenge is creating neural interfaces that can seamlessly transmit large amounts of artificially collected information to the nervous system, in a way that the user can experience sensations naturally and effortlessly.”</div> <div><br /></div> <div>The implantation of this new technology took place at Sahlgrenska University Hospital, led by Professor Rickard Brånemark and Doctor Paolo Sassu. Over a million people worldwide suffer from limb loss, and the end goal for the research team, in collaboration with Integrum AB, is to develop a widely available product suitable for as many of these people as possible.</div> <div><br /></div> <div>“Right now, patients in Sweden are participating in the clinical validation of this new prosthetic technology for arm amputation,” says Max Ortiz Catalan. “We expect this system to become available outside Sweden within a couple of years, and we are also making considerable progress with a similar technology for leg prostheses, which we plan to implant in a first patient later this year.”</div></div></div> <div><br /><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Tankestyrda%20armproteser%20med%20känsel%20har%20blivit%20en%20del%20av%20vardagen/Max_och_patient_750x500px.jpg" class="chalmersPosition-FloatRight" alt="Max Ortiz Catalan with a patient" style="margin:5px" /><br /><br /><em>Max Ortiz Catalan in a follow up appointment with one of the patients, at the Chalmers Biomechatronics and Neurorehabilitation Laboratory.</em><br /></div> <div><h2 class="chalmersElement-H2">More about: How the technology works</h2> <div>The implant system for the arm prosthesis is called e-OPRA and is based on the OPRA implant system created by Integrum AB. The implant system anchors the prosthesis to the skeleton in the stump of the amputated limb, through a process called osseointegration (osseo = bone). Electrodes are implanted in muscles and nerves inside the amputation stump, and the e-OPRA system sends signals in both directions between the prosthesis and the brain, just like in a biological arm.</div> <div><br /></div> <div>The prosthesis is mind-controlled, via the electrical muscle and nerve signals sent through the arm stump and captured by the electrodes. The signals are passed into the implant, which goes through the skin and connects to the prosthesis. The signals are then interpreted by an embedded control system developed by the researchers. The control system is small enough to fit inside the prosthesis and it processes the signals using sophisticated artificial intelligence algorithms, resulting in control signals for the prosthetic hand's movements.</div> <div><br /></div> <div>The touch sensations arise from force sensors in the prosthetic thumb. The signals from the sensors are converted by the control system in the prosthesis into electrical signals which are sent to stimulate a nerve in the arm stump. The nerve leads to the brain, which then perceives the pressure levels against the hand.</div> <div><br /></div> <div>The neuromusculoskeletal implant can connect to any commercially available arm prosthesis, allowing them to operate more effectively.</div> <div><br /></div> <img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Tankestyrda%20armproteser%20med%20känsel%20har%20blivit%20en%20del%20av%20vardagen/Tankestyrd_protes_illustration_eng_400x311px.jpg" class="chalmersPosition-FloatRight" alt="An illustration of the mind-controlled prosthesis with sensation" style="margin:5px" /><div><div><span style="background-color:initial"><em>The neuromusculoskeletal prosthesis has a direct connection to a person's nerves, muscles and skeleton. The neural interfaces are electrodes wrapped around the severed nerves. The muscular interfaces consist of electrodes implanted on the biceps and triceps muscles. The skeletal interface comprises a titanium screw that is osseointegrated within the bone – meaning that the bone cells are directly attached to it, providing mechanical stability. Part of the skeletal interface extends out of the body through the skin and connects to the prosthetic arm. Electrical connectors embedded in the skeletal interface provide bidirectional communication between the prosthesis and the electrodes implanted in nerves and muscles.</em></span><br /></div></div> <div><br /></div> <div><h2 class="chalmersElement-H2">More about: How the artificial sensation is experienced</h2> <div>People who lose an arm or leg often experience phantom sensations, as if the missing body part remains although not physically present. When the force sensors in the prosthetic thumb react, the patients in the study feel that the sensation comes from their phantom hand. Precisely where on the phantom hand varies between patients, depending on which nerves in the stump receive the signals. The lowest level of pressure can be compared to touching the skin with the tip of a pencil. As the pressure increases, the feeling becomes stronger and increasingly ‘electric’.</div> <div>​<br /></div></div> <div><h2 class="chalmersElement-H2">More about: The research</h2> <div>The current study dealt with patients with above-elbow amputations, and this technology is close to becoming a finished product. The research team is working in parallel with a new system for amputations below the elbow. In those cases, instead of one large bone (humerus), there are two smaller bones (radius and ulna) to which the implant needs to be anchored. The group is also working on adapting the system for leg prostheses.</div> <div><br /></div> <div>In addition to applications within prosthetics, the permanent interface between human and machine provides entirely new opportunities for scientific research into how the human muscular and nervous systems work.</div> <div><br /></div> <div>Associate Professor Max Ortiz Catalan heads the<a href="" target="_blank"> Biomechatronics and Neurorehabilitation Laboratory​</a> at Chalmers University of Technology and is currently establishing the new Center for Bionics and Pain Research at Sahlgrenska University Hospital, in close collaboration with Chalmers and the University of Gothenburg, where this work will be further developed and clinically implemented.</div> <div><br /></div> <div>The research has been funded by the Promobilia Foundation, the IngaBritt and Arne Lundbergs Research Foundation, Region Västra Götaland (ALF grants), Vinnova, the Swedish Research Council, and the European Research Council.</div></div> <div><br /></div> <div>Chalmers University of Technology develops its collaboration with health care and medical research through the <a href="/en/areas-of-advance/health/Pages/default.aspx">Health Engineering Area of Advance​</a>.<br /></div> <div>​<br /></div> <div><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Tankestyrda%20armproteser%20med%20känsel%20har%20blivit%20en%20del%20av%20vardagen/mindcontrolled_prosthesis_750px.jpg" class="chalmersPosition-FloatLeft" alt="The sensations of touch in a mind-controlled arm prosthesis " style="margin:5px" /><br /><br /><em>With the prosthesis, the patients can feel when they are holding an object, and how hard they are gripping, which is essential for imitating a biological hand.</em><br /></div> <div><h3 class="chalmersElement-H3">​<span>For more information, please contact</span></h3></div> <div><a href="/en/staff/Pages/max-jair-ortiz-catalan.aspx">Max Ortiz Catalan</a>, Department of Electrical Engineering, Chalmers University of Technology, Sweden, +46 70 846 10 65, <a href="">​​</a></div></div> <div><br /></div> <div><div><em>Text: Johanna Wilde<br /></em></div> <div><em>Portrait photo of Max Ortiz Catalan: Oscar Mattsson</em></div> <em> </em><div><em>Film and other photos: Johan Bodell</em></div> <em> </em><div><em>Illustration: Sara Manca /Yen Strandqvist</em></div></div>Wed, 29 Apr 2020 23:00:00 +0200 for electromobility gets 575 million SEK<p><b>​One of Europe’s leading testbeds for electric and charging vehicles is now one step closer to realisation. The Swedish Energy Agency grants SEEL, Swedish Electric Transport Laboratory, 575 million SEK in support.</b></p>​<span style="background-color:initial">The important development of electrified vehicles, vessels and aircraft is in full progress. But there are knowledge gaps in the area of electric and charging vehicles, at both industrial and societal levels. New experience is needed, and innovative concepts are tested and evaluated.<br /></span><div>Swedish Electric Transport Laboratory, SEEL, is a comprehensive investment in a testbed for electric and charging vehicles. The corporation Swedish Electric Transport Laboratory AB is founded by Chalmers University of Technology and RISE (Research Institutes of Sweden), and a wide range of players will operate within the SEEL testbed.</div> <div><div> “It is very positive news to now have another piece of this puzzle in place. In order to deliver world-leading expertise within electrified transportation, we now also need to secure the conditions for academic research and education of the highest international standard. This requires new public research resources within SEEL’s field of activity”, says Stefan Bengtsson, President and CEO of Chalmers.</div> <h2 class="chalmersElement-H2">&quot;A big step towards a more sustainable society&quot;</h2></div> <div>Robert Andrén, Director General at the Swedish Energy Agency, is counting on the project to help fight climate change as it focuses on batteries and electromobility.</div> <div>“Also, it is a big step towards a more sustainable society and more green jobs. In these Corona times, it is especially important that we support this type of forward-looking efforts that contribute to a climate-smart restart of society”, he says.</div> <div>Advanced knowledge development is required in the field of electromobility, and in the conditions for translating new insights into innovative solutions. In order to achieve this, close cooperation between academia, research institutes and industry is required.</div> <div> “SEEL has the right conditions to become a world-leading test facility for electromobility and thus very important for the vehicle industry’s conversion. SEEL will strengthen the competitiveness of the Swedish automotive industry, and help Sweden to remain at the forefront of innovations in the transport sector”, says RISE CEO Pia Sandvik.</div> <h2 class="chalmersElement-H2">FACTS: SEEL</h2> <div>Swedish Electric Transport Laboratory, SEEL, is an electromobility testbed for electric and charging vehicles. The purpose of the initiative is to strengthen the conditions for cooperation within electromobility. Actors in small and medium-sized companies in the automotive industry, the aviation industry and the maritime sector, as well as other companies that develop technology in relevant areas, will have a common platform at SEEL. Researchers at universities and research institutes will also have access to an advanced research infrastructure. SEEL is expected to be operational by 2023.</div> <div>In the summer of 2018, the Swedish Energy Agency was commissioned by the Swedish Government to provide funding of 575 million SEK for the construction of a test center for electromobility. In December 2019, the European Commission approved state support for SEEL within the framework of an IPCEI, i.e. an important project of common European interest, to build a European battery value chain.<br /><br /></div> <div><a href="">Read the full text in Swedish at the Swedish Energy Agency.​</a></div> Wed, 29 Apr 2020 16:00:00 +0200 Chalmers Cortège becomes the Mini-Cortège<p><b>​Spring 2020 is by all means unusual and the spread of the Covid-19 corona virus has far-reaching consequences for everyone. For the first time since 1940, during the Second World War, the traditional Chalmers Cortège is cancelled. But a chalmerist finds a solution to anything – the Chalmers Cortège becomes the Mini-Cortège 2020.</b></p>​&quot;<span style="background-color:initial">The background to the Mini-Cortège is to spread joy to Gothenburg and show the traditional sign of Spring. Keeping up with a cortège is very important to us and during the circumstances this year we believe this is a perfect way to keep the Cortège alive, to be able to delight young and old people and spread &quot;Spring joy&quot; to the city of Gothenburg,&quot; says Emma Dahlin, student and PR manager for the </span>Chalmers Cortège Committé<span style="background-color:initial">.</span><div><br /></div> <div>The Mini-Cortège 2020 consists of 12 selected equipages in mini format (scale 1: 22.5 and 1:32) which will be placed in different places around the center of Gothenburg where everyone can come and look at them.</div> <div><br /></div> <div>&quot;Information about the equipages will also be available on our website and on instagram so you can see them from home and get more information about the background of the different news and equipage solutions,&quot; says Emma Dahlin.</div> <div><br /></div> <div><div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more on the Chalmers Cortège website</a> (in Swedish)</div> <div><br /></div> <div>Follow the Cortège on Instagram <a href="">@chalmerscortegecommitte</a></div> <div>Follow Chalmers on Instagram<a href="" target="_blank" style="font-family:&quot;open sans&quot;, sans-serif"> @c​ ​</a></div></div>Wed, 29 Apr 2020 10:00:00 +0200