News: KoMhttp://www.chalmers.se/sv/nyheterNews related to Chalmers University of TechnologyMon, 17 Jun 2019 10:14:13 +0200http://www.chalmers.se/sv/nyheterhttps://www.chalmers.se/en/departments/physics/news/Pages/Soon,-air-pollution-could-be-measured-on-every-street-corner.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Soon,-air-pollution-could-be-measured-on-every-street-corner.aspxAir pollution could be measured on every street corner<p><b>​​Air pollution is responsible for 550,000 premature deaths a year in Europe – and 7 million worldwide, according to the WHO. Measuring it can be a challenge, however, as the equipment tends to be large and expensive. But soon, this may change, thanks to a small, optical nano-sensor, developed at Chalmers, which can be mounted onto an ordinary streetlight.​</b></p><div>​The technology is already in use in western Sweden, and researchers and other interested parties hope that the sensor could soon be used in many broad contexts. A collaboration with the University of Sheffield is also underway. <br /><span style="background-color:initial"><img src="/SiteCollectionImages/Institutioner/F/350x305/350x305_IremTanyeli_labb_20190405.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px" />“Air pollution is a global health problem. To be able to contribute to increased knowledge and a better environment feels great. With the help of these small, portable sensors, it can become both simpler and cheaper to measure dangerous emissions extremely accurately,” says Chalmers researcher Irem Tanyeli, who has helped develop the small sensors, which measure nitrogen dioxide with great precision. <br /><br /></span></div> <div>For the hi-tech sensors to make the move from the lab out into the real world, Irem Tanyeli worked with the Gothenburg-based company Insplorion, co-founded by Chalmers researcher Christoph Langhammer in 2010. With help from financier Mistra Innovation, he has been involved with the company’s efforts at taking on the great environmental challenge of precisely mapping air pollution. <br /><br /></div> <div><img src="/SiteCollectionImages/Institutioner/F/350x305/ChristophLanghammerfarg350x305.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:250px;height:218px" />“This is a great example of how a university and a company can collaborate. Both parties contribute with their expertise to create a new product, contributing to a more sustainable society,” says Christoph Langhammer, Professor at the Chalmers Department of Physics.<br /><br /></div> <div>Exhaust gases from road traffic are responsible for the majority of nitrogen dioxide pollution in the air. Breathing in nitrogen dioxide is harmful to our health, even at very low levels, and can damage our respiratory systems and lead to cardiac and vascular diseases. According to the World Health Organisation, air pollution is the single biggest environmental health risk worldwide. <br /><br /></div> <div>The new optical nano-sensor can detect low concentrations of nitrogen dioxide very precisely – down to the parts-per-billion level (ppb). The measuring technique is built upon an optical phenomenon which is called a plasmon. It arises when metal nanoparticles are illuminated and absorb light of certain wavelengths. Christoph Langhammer and his research group have been working in this area for over a decade, and now innovations are starting to see the light of day. <br /></div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/F/350x305/350x305Leading%20Light%20armatur.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />For the last two years, Irem Tanyeli has been working with optimising the sensor material and conducting tests under differently simulated environmental conditions. The technology is now installed in a streetlight in Gothenburg, as part of a collaboration with lighting company Leading Light, to measure the quantity of nitrogen dioxide molecules in the urban environment. <br /><br /></div> <div>“In the future, we hope that the technology also can be integrated into other urban infrastructure, like traffic lights or speed cameras, or for measuring air quality indoors,” says Irem Tanyeli. </div> <div><br /><br /></div> <div><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/250px_Installation%20IVL%20Nordstanstaket.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:200px;height:307px" /></div> <div><a href="http://www.loviot.se/who-we-are/">A sensor is also installed on the roof of Nordstan in Gothenburg, ​</a>one of Scandinavia’s biggest shopping malls, and soon more will be placed along the route of Västlänken, a major railway tunnel construction project, also in Gothenburg.<br /><br /></div> <div>The technology has already raised interest from several organisations, including the Urban Flows Observatory, an air quality centre at the University of Sheffield. They will conduct field testing, comparing the nanosensors’ results with data from a number of British reference stations. </div> <div>“There is a lack of small functional nitrogen dioxide sensors on the market. We find this nano plasmonic solution interesting, and look forward to the test results,” says Professor Martin Mayfield at Urban Flows Observatory, University of Sheffield. <br /><br /></div> <div>Other interested parties include Stenhøj Sverige, a company, which develops gas and smoke analysers for automotive repair shops and vehicle inspection companies, as well as IVL, Swedish Environmental Research Institute.IVL works with applied research and development in close collaboration with industry and the public sphere to address environmental issues.<br /><br /></div> <div>The new sensor technology is not limited to measuring nitrogen dioxide but can also be adapted to other types of gases. There is therefore potential for further innovation. <br /><br /></div> <div>“Nitrogen dioxide is just one of the many substances which can be detected with the help of optical nanosensors. There are great opportunities for this type of technology,” says Christoph Langhammer. </div> <div><br /></div> <div><p class="chalmersElement-P" style="margin-bottom:10px;background-color:transparent"><span style="font-weight:700">Text: </span><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></p> <p class="chalmersElement-P" style="margin-bottom:10px;background-color:transparent"><span style="background-color:initial">and </span><span style="background-color:transparent">Mia Halleröd Palmgren, </span><a href="mailto:mia.hallerodpalmgren@chalmers.se">mia.hallerodpalmgren@chalmers.se</a><span style="background-color:transparent"> </span></p> <span style="background-color:transparent"></span><p class="chalmersElement-P" style="margin-bottom:10px;background-color:transparent"></p> <span style="background-color:transparent"></span><p class="chalmersElement-P" style="margin-bottom:10px;background-color:transparent"><span style="font-weight:700">Photos</span> by Insporion/Johan Bodell (banner image), Mia Halleröd Palmgren (Irem Tanyeli), Henrik Sandsjö (Christoph Langhammer) and Jonas Tobin (Jenny Lindén).<span style="background-color:initial;color:rgb(51, 51, 51)"> ​</span></p></div> <div><img src="/SiteCollectionImages/Institutioner/F/750x340/750x340Sensor_bred_20190305.jpg" alt="" style="margin:5px" /><br /><div><span style="background-color:initial">The prototype consists of a sensor, which is connected to a box which both shows the emissions levels in real time, and saves the results over time. </span><span style="background-color:initial">​</span><br /></div> <br /></div> <div><span style="background-color:initial;font-family:inherit;font-size:20px;color:rgb(33, 33, 33)">For more information, contact: </span><br /></div> <div><br /></div> <div><span style="background-color:initial"><a href="/en/Staff/Pages/Irem-Tanyeli.aspx">Irem Tanyeli</a>, Researcher, Department of Physics, Chalmers, <a href="mailto:irem.tanyeli@chalmers.se,">irem.tanyeli@chalmers.se,</a> +46 79 337 25 66 </span><br /></div> <div><span style="background-color:initial"><br /></span></div> <div><a href="/en/Staff/Pages/Christoph-Langhammer.aspx">Christoph Langhammer​</a>, Professor, Department of Physics, Chalmers, +46 31 772 33 31, <a>clangham@chalmers.se​</a></div> <div><a><br /></a></div> <div><a href="https://www.mynewsdesk.com/uk/chalmers/pressreleases/soon-air-pollution-could-be-measured-on-every-street-corner-2885458"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the press release and download high resolution images.​</a></div> <div><br /></div> <div><a href="http://www.euro.who.int/__data/assets/pdf_file/0012/385959/fs-sdg-3-9-air-eng.pdf?ua=1"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more on the World Health Organisation’s facts on air pollution.​</a></div>Thu, 13 Jun 2019 07:00:00 +0200https://www.chalmers.se/en/departments/e2/news/Pages/Innovative-prosthetic-teamwork-rewarded.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/Innovative-prosthetic-teamwork-rewarded.aspxInnovative prosthetic teamwork rewarded<p><b>​The research team behind a new generation of bionic limbs has been awarded this year’s Henry Wallman prize in medical technology. In the winning trio is Max Ortiz Catalan from Chalmers University of Technology.​</b></p>​​<img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Nytänkande%20protessamarbete%20prisas/Upper-limb_400px.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" /><span style="background-color:initial">The team, consisting of Rickard Brånemark, Max Ortiz Catalan and Kerstin Hagberg, has successfully developed a new type of prosthesis for patients with amputations. The new prosthesis is directly attached to the skeleton in the amputation stump with an abutment penetrating the skin. </span><div><br /><span style="background-color:initial"></span><div><div>Rickard Brånemark and Kerstin Hagberg have dedicated decades to clinically implement this superior method of mechanical attachment of a limb prosthesis to the body. Further collaborative work by Max Ortiz Catalan allowed to also connect the prosthesis to the users’ nervous system, so patients can control the artificial limb as their own biological extremity.</div> <div><br /></div> <div>In the justification of the prize, it is emphasized that the trio demonstrates how a good collaboration between representatives for different competences can combine basic research with surgery, medical engineering, and clinical work to create products and solutions that can benefit a large group of patients.</div> ​<img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Nytänkande%20protessamarbete%20prisas/Lower-limb_250px.jpg" alt="Lower-limb prosthesis" class="chalmersPosition-FloatRight" /></div> <div><div>As the team includes rehabilitation in their work, the real-life use of the innovative prosthetic solution is ensured. The latter is also strengthened by the formation of Integrum AB; a company that further develops and markets the results.</div> <div><br /></div> <div>”Collaborative work between different disciplines is often sought but hard to achieve. I feel honored to have the possibility to work with highly competent individuals of a variety of backgrounds, who are willing to go through the hurdles of multi-disciplinary collaborations for a greater good. Several people have contributed to the creation and implementation of this technology, and I’m very grateful for their efforts. We will continue developing this technology further to restore even more function and reduce disability,” says Max Ortiz Catalan.  </div> <div><br /></div> <div><strong>The awarded team 2019</strong></div> <div>Rickard Brånemark – MSc (Chalmers), PhD, MD orthopaedic surgeon</div> <div>Max Ortiz Catalan – PhD, biomedical engineer</div> <div>Kerstin Hagberg – PhD, physiotherapist</div> <div><br /></div> <div>The prize will be awarded at a ceremony this autumn. Date will be announced after the summer.</div> <div><br /></div> <div><br /></div> <div><strong style="background-color:initial">About the prize</strong><br /></div> <div>The Henry Wallman prize is an innovation prize in medical technology, awarded annually since 2018 to researchers or graduate students who, in close collaboration between expertise in technology and health care, successfully have transferred new knowledge from academia to practical medical care. The Foundation for Biomedical Engineering (Stiftelsen Medicin &amp; Teknik) at Chalmers is hosting the prize. </div> <div>Henry Wallman came to Chalmers in 1948 and was a pioneer in biomedical engineering research and development. An important part of Henry Wallman’s deed was his philosophy and vision around close collaboration between technical and medical expertise to achieve success.</div> <div><a href="http://www.medtechwest.se/collaboration-platforms/henry-wallman/" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />More about the Henry Wallman prize​</a></div> <div>​<br /></div> <div><strong>Contact</strong></div> <div><a href="/en/Staff/Pages/max-jair-ortiz-catalan.aspx">Max Ortiz Catalan</a>, Associate Professor, Department of Electrical Engineering, Chalmers University of Technology, <a href="mailto:%20maxo@chalmers.se">maxo@chalmers.se​</a></div> <div>Dr. Max Ortiz Catalan is an Associate Professor at the Biomedical Signals and Systems research unit at Chalmers, and founder of the Biomechatronics and Neurorehabilitation Laboratory (@ChalmersBNL). His research focus on neural control of artificial limbs via osseointegrated implants. This involves bio-electric signals acquisition and processing, neural interfaces, machine learning, osseointegration, and neurostimulation. Max Ortiz Catalan is leading the development and clinical implementation of the <a href="/en/projects/Pages/Natural-control-of-artificial-limb.aspx">Osseointegrated Human-Machine Gateway​</a>.</div> <div><br /></div> </div></div>Wed, 12 Jun 2019 14:00:00 +0200https://www.chalmers.se/en/departments/physics/news/Pages/Light-box-that-opens-new-doors-into-the-nanoworld.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Light-box-that-opens-new-doors-into-the-nanoworld.aspxLight box that opens new doors into the nanoworld<p><b>Researchers at Chalmers have discovered a completely new way of capturing, amplifying and linking light to matter at the nanolevel. Using a tiny box, built from stacked atomically thin material, they have succeeded in creating a type of feedback loop in which light and matter become one. The discovery, which was recently published in Nature Nanotechnology, opens up new possibilities in the world of nanophotonics.</b></p><div><span style="background-color:initial"><div><span style="background-color:initial">Photonics is concerned with various means of using light. Fibre-optic communication is an example of photonics, as is the technology behind photodetectors and solar cells. When the photonic components are so small that they are measured in nanometres, this is called nanophotonics. In order to push the boundaries of what is possible in this tiny format, progress in fundamental research is crucial. The innovative ‘light box’ of the Chalmers researchers makes the alternations between light and matter take place so rapidly that it is no longer possible to distinguish between the two states. Light and matter become one. </span><br /></div> <div><span style="background-color:initial"><br /></span></div></span><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/RuggeroVerre_200px.jpg" class="chalmersPosition-FloatRight" alt="" /><span style="background-color:initial"></span><span style="background-color:initial"><div>“We have created a hybrid consisting of equal parts of light and matter. The concept opens completely new doors in both fundamental research and applied nanophotonics and there is a great deal of scientific interest in this,” says Ruggero Verre, a researcher in the Department of Physics at Chalmers and one of the authors of the scientific article.</div> <div><br /></div> <div>The discovery came about when Verre and his departmental colleagues Timur Shegai, Denis Baranov, Battulga Munkhbat and Mikael Käll combined two different concepts in an innovative way. Mikael Käll’s research team is working on what are known as nanoantennas, which can capture and amplify light in the most efficient way. Timur Shegai’s team is conducting research into a certain type of atomically thin two-dimensional material known as TMDC material, which resembles graphene. It was by combining the antenna concept with stacked two-dimensional material that the new possibilities were created. </div> <div><br /></div> <div>The researchers used a well-known TMDC material – tungsten disulphide – but in a new way. By creating a tiny resonance box – much like the sound box on a guitar – they were able to make the light and matter interact inside it. The resonance box ensures that the light is captured and bounces round in a certain ‘tone’ inside the material, thus ensuring that the light energy can be efficiently transferred to the electrons of the TMDC material and back again. It could be said that the light energy oscillates between the two states – light waves and matter – while it is captured and amplified inside the box. The researchers have succeeded in combining light and matter extremely efficiently in a single particle with a diameter of a mere 100 nanometres, or 0.00001 centimetres. </div> <div><br /></div></span><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/TimurShegai_190510.jpg300x.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px;height:355px;width:280px" /><span style="background-color:initial"><div>This all-in-one solution is an unexpected advance in fundamental research, but can hopefully also contribute to more compact and cost-effective solutions in applied photonics. </div> <div>“We have succeeded in demonstrating that stacked atomically thin materials can be nanostructured into tiny optical resonators, which is of great interest for photonics applications. Since this is a new way of using the material, we are calling this ‘TMDC nanophotonics’. I am certain that this research field has a bright future,” says Timur Shegai, Associate Professor in the Department of Physics at Chalmers and one of the authors of the article.<span style="background-color:initial">​</span></div></span></div> <div><br /></div> <div><span style="background-color:initial">Text: Mia Halleröd Palmgren, </span><a href="mailto:mia.hallerodpalmgren@chalmers.se">miahallerodpalmgren@chalmers.se​</a><br /></div> <div> <div>Foto:  Aykut Argun (Ruggero Verre) and Mia Halleröd Palmgren (Timur Shegai and group photo below). <span style="background-color:initial">​</span></div></div> <div><span style="background-color:initial"><br /></span></div> <div><br /></div> <div><a href="https://www.nature.com/articles/s41565-019-0442-x"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /> </a><div style="display:inline !important"><a href="https://www.nature.com/articles/s41565-019-0442-x">Read the scientific article Transition metal dichalcogenide nanodisks as high-index dielectric Mie nanoresonators i Nature Nanotechnology.</a></div></div> <div><br /></div> <div><a href="https://www.mynewsdesk.com/uk/chalmers/pressreleases/tiny-light-box-opens-new-doors-into-the-nanoworld-2884296"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the press release and download high resolution images. ​</a></div> <div><br /></div> <div><h2 class="chalmersElement-H2">For more information: <span style="font-family:inherit;background-color:initial">​</span><br /></h2></div> <div><div></div> <div><p class="chalmersElement-P"><a href="/en/Staff/Pages/Ruggero-Verre.aspx">Ruggero Verre</a>, Researcher, Department of Physics, Chalmers University of Technology, +46 31 772 80 39, <a href="mailto:ruggero.verre@chalmers.se">ruggero.verre@chalmers.se</a></p></div> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"><br /></p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"><a href="/en/Staff/Pages/Mikael-Käll.aspx">Mikael Käll,</a> Professor and Head of the Division of Bionanophotonics, Department of Physics, Chalmers University of Technology, +46 31 772 31 39, <a href="mailto:mikael.kall@chalmers.se">mikael.kall@chalmers.se</a></p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"><br /></p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"><a>Timur Shegai,​</a> Associate Professor, Department of Physics, Chalmers University of Technology, +46 31 772 31 23, <a href="mailto:timurs@chalmers.se">timurs@chalmers.se​</a></p> <p class="chalmersElement-P"><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/1_Kall_grupp_750px.jpg" alt="" style="margin:5px" /><br />The researchers behind the new results: Timur Shegai, Ruggero Verre, Mikael Käll, Denis Baranov and <span style="background-color:initial">Battulga Munkhbat. </span></p></div> <div></div>Tue, 11 Jun 2019 07:00:00 +0200https://www.chalmers.se/en/areas-of-advance/energy/news/Pages/Researchers-in-quest-for-sustainable-food.aspxhttps://www.chalmers.se/en/areas-of-advance/energy/news/Pages/Researchers-in-quest-for-sustainable-food.aspxResearchers in quest for sustainable food<p><b>​“Forgotten” plants, insects and crops. A new initiative sees researchers studying knowledge from rural Kenya, in the hopes that it will lead to better health and a sustainable food supply.</b></p><div><span><img class="chalmersPosition-FloatLeft" alt="Ulf Svanberg. Photo: Maria Grahn" src="/sv/styrkeomraden/energi/nyheter/PublishingImages/Kenya%20Ulf%20Svanberg.jpg" style="margin:5px" /><strong>“</strong></span><span><strong>Fundamentally</strong></span><span><strong>, my approach is </strong>that </span><span>“Fundamentally, my approach is that challenges should be defined by those facing the problem. Sometimes, where we’re trying to improve the situation, we have ideas which seem good but which don’t really focus on the major problems. However, in this case I think we’re spot-on”, says Ulf Svanberg, Professor of Food and Nutrition Science at Chalmers.</span><br /></div> <div><span><br /></span> </div> <div><div><strong>The initiative was launched </strong>by President and CEO of Chalmers, Stefan Bengtsson, to bring about greater collaboration with Universities in East Africa. Keeping in mind the UN’s 17 Sustainable Development Goals - aimed at combating extreme poverty, reducing inequality and injustice in the world, promoting peace and justice and solving the climate crisis - Chalmers has identified three focus areas: food, water and energy. The partnership has been formed around Chalmers researchers from these fields.</div> <div>In early April, researchers from Chalmers and the Jaramogi Oginga Odinga University of Science and Technology, JOOUST met for a workshop in the Kenyan port of Kisumu, on the northern shores of Lake Victoria.</div></div> <div> </div> <div><strong><img class="chalmersPosition-FloatRight" alt="Monica Awuor Ayieko, photo by Maria Grahn" src="/sv/styrkeomraden/energi/nyheter/PublishingImages/Monica_A_JOOUSTIMG_7194-(002).jpg" style="margin:5px" />Before travelling, the researchers</strong> had sent descriptions of their specialist fields. But when Svanberg tried to find a potential partner with a background in food, he found that there really weren’t any.</div> <div>Then, along came Monica Awuor Ayieko, heading a research group whose focus included the nutritional value of insects, at the Africa Center of Excellence in Sustainable Use of Insects as Food and Feeds, INSEFOODS.</div> <div>“I had no expertise in that area, so I read a comprehensive research article from the Netherlands. Insects are eaten in Africa and Asia and I immediately saw the connection between Monica’s research and my own”.<br /><br /></div> <div>Svanberg has a well-established background in food and nutrition science. In the early 1980s, his first doctoral student was Alex Mosha in Tanzania, who worked at the country’s Food and Nutrition Centre. They travelled around, weighing and measuring children in rural areas to investigate the prevalence of malnutrition and anaemia.</div> <div>Iron deficiency anaemia and malnutrition are global health problems entailing diminished quality-of-life and increased risk of death from infectious diseases like measles and malaria. Currently, over half of preschool children in Africa are affected by iron deficiency anaemia.</div> <div><br /> </div> <div><strong>Svanberg and his doctoral student discovered Power Flour. </strong>This sprouted flour could transform the thick porridge the children were eating into a nutritious gruel and help reduce the number of malnourished children in the region. </div> <div>“Without enough protein, children will be of shorter stature relative to their age. There is research showing the societal effect of this, including lower GDP in countries where the population is iron-deficient,” explains Svanberg, pointing out that food and nutrition are at the centre of the UN’s global goals.</div> <div>“That’s how I got involved. I’ve also run research projects in a number of other countries such as Ethiopian, Uganda and Mozambique. But, up to now, Kenya was one of the few East African countries where I didn’t have a partnership.” </div> <div><br /></div> <div><strong>So, how do insects help? </strong><span>Iron from animal foods is easily absorbed by the body but the iron present in cereals such as rice and maize is much less absorbed.</span></div> <div>“This is the cunning part. If you add a little bit of meat with the cereals, more of the iron from the cereals is absorbed. Mixing insects into cereal foods may therefore have a   positive effect on iron uptake”, says Svanberg.</div> <div> </div> <div>At the Kisumu workshop, the researchers brought together a research project which they called “Hidden treasures of underutilised plants and insects: from molecule to landscape”.</div> <div>Svanberg explains that they set out to study and map insects and “forgotten” plants; nutrient-rich green leaves used in rural villages for purposes unknown to us. Researchers will also study land use in cultivation. Food wastage is a problem in Kenya, with some 30 percent of perishable foods in the cities going to waste.</div> <div><br /> </div> <div><img class="chalmersPosition-FloatLeft" alt="Cakes with a base of insects, photo by Maria Grahn" src="/sv/styrkeomraden/energi/nyheter/PublishingImages/Kenya_kakor.jpg" style="margin:5px" /><strong>“So, there’s a lot to do in this project. </strong>This is a new university, but the researchers we met are incredibly talented. They have a drive and a positive attitude to research collaboration. We’ve already appointed a tentative doctoral student for our project and a partnership within the other fields is also underway.</div> <div><br /></div> <div>Svanberg received a pack of biscuits from JOOUST, to which Monica had added 10 percent insects.</div> <div>“It tastes pretty much like shortbread but with a slightly bitter aftertaste. In June, when we discuss this partnership with the department, I’m going to hand those biscuits around at coffeetime!”</div> <div> </div> <div><strong>Just as the interview is ending</strong>, Svanberg mentions a quote from then US president, John F. Kennedy, at the first World Food Congress, held in Washington on June 4,1963:</div> <div>“We have the ability, as members of the human race, we have the means, we have the capacity to eliminate hunger from the face of the earth in our lifetime. We only need the will”.</div> <div>“President Kennedy was right. He understood and had the vision. It’s 40 years since I first came to Africa but now we’re finally here to realise the UN’s Sustainable Development Goals; to eliminate hunger and malnourishment by 2030.<br /><br /></div> <div>Maria Grahn is the photographer for all photos. From the top: Ulf Svanberg, Monica Awuor Ayieko and the biscuits.​<br />Text by: Ann-Christine Nordin<br /><br /><span style="font-weight:700">RELATED:</span><br /><a href="https://www.jooust.ac.ke/" style="background-color:rgb(255,255,255)"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />JOOUST: Jaramogi Oginga Odinga University of Science and Technology​</a><br /><a href="/sv/styrkeomraden/energi/nyheter/Sidor/Halla-dar-Maria-Grahn.aspx" style="background-color:rgb(255,255,255)"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Bygger broar med Östafrika</a> (More about the initiative in Swedish)<br /><a href="/en/departments/bio/news/Pages/Collaboration-with-Chalmers-to-reduce-malnutrition.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Reduces malnutrition using germinated fluor</a><br /><a href="https://www.globalgoals.org/"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />The Global Goals​</a><br /><br /></div>Fri, 07 Jun 2019 15:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/The-EU-is-investing-EUR-4-million-in-autonomous-vehicles.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/The-EU-is-investing-EUR-4-million-in-autonomous-vehicles.aspxInvestigates the safety effect of automated vehicles<p><b>​How can we make humans and automated vehicles cooperate? There are several unanswered questions about autonomous vehicles. The EU is, therefore, investing EUR 4 million in research within this research field. Chalmers has been entrusted with the task of coordinating the Marie Curie project.</b></p>​The researcher who has been entrusted with the task is Jonas Bärgman who works at the Department of Mechanics and Maritime Sciences and the Division of Vehicle Safety. The Marie Curie project has the title SHAPE-IT, Supporting the interaction of Humans and Automated vehicles: Preparing for the Environment of Tomorrow. It runs for four years and will fund 15 doctoral students, spread over six universities across the EU. The overall goal of the project is to enable rapid and reliable development of safe and user-centred automated vehicles for urban environments. <div><br /></div> <div>”In the project, we will conduct research with the goal to understand the interaction between humans and automated vehicles, how to best develop and design human-machine interfaces for automated vehicles, and how to evaluate the traffic safety effect of automated vehicles” says Jonas Bärgman. </div> <div><br /></div> <div>For each of these areas, two different aspects will be addressed: the interaction between humans and automated vehicles inside and outside automated vehicles, respectively. In addition to the coordination and project management, Chalmers will, and more specifically, the unit Crash Analysis and Prevention at the division of Vehicle Safety, have two PhD students. </div> <div><br /></div> <div>“One of the PhD-students will focus on quantitative modelling of the interaction between bicyclist and automated vehicles. The other PhD student will continue the research to develop and validate methods for assessment of traffic safety benefits of automated vehicles through virtual simulations of different scenarios” </div> <div><br /></div> <div>The Department of Computer Science and Engineering, which is a department shared between Chalmers and the University of Gothenburg, will also participate in the project with two doctoral students who, among other things, will do research on artificial intelligence (AI) linked to self-driving vehicles. This includes using AI- methods to provide a better understanding of the interaction between humans and automated vehicles, and about developing methods to integrate knowledge from the research domain of Human Factors Engineering and driver behaviour, into frameworks that are used to develop AI-based automated vehicles. </div> <div><br /></div> <div>Jonas Bärgman thinks that they will be able to address many of the questions that today there are no answers to with respect to automated vehicles and how they will/should interact with humans in city/urban environment – both from a designer perspective and from a traffic safety perspective. </div> <div><br /></div> <div>”My hopes are that we will be able to make automated vehicles much safer, while we improve the usability and acceptance for them, and, in general, build competencies around human behaviour inside and outside automated vehicles.&quot;</div> <div><div> </div></div> <h3 class="chalmersElement-H3">Read more</h3> <div><a href="/en/departments/m2/research/vehiclesafety">The Division of Vehicle Safety​​</a></div>Wed, 29 May 2019 14:00:00 +0200https://www.chalmers.se/en/departments/physics/news/Pages/Colliding-lasers-double-the-energy-of-proton-beams.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Colliding-lasers-double-the-energy-of-proton-beams.aspxColliding lasers double the energy of proton beams<p><b>​Researchers from Sweden’s Chalmers University of Technology and the University of Gothenburg present a new method which can double the energy of a proton beam produced by laser-based particle accelerators. The breakthrough could lead to more compact, cheaper equipment that could be useful for many applications, including proton therapy.​​​</b></p><div><p class="chalmersElement-P">Proton therapy involves firing a beam of accelerated protons at cancerous tumours, killing them through irradiation. But the equipment needed is so large and expensive that it only exists in a few locations worldwide. ​</p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <p class="chalmersElement-P">Modern high-powered lasers offer the potential to reduce the equipment’s size and cost, since they can accelerate particles over a much shorter distance than traditional accelerators – reducing the distance required from kilometres to metres. The problem is, despite efforts from researchers around the world, laser generated proton beams are currently not energetic enough. But now, the Swedish researchers present a new method which yields a doubling of the energy – a major leap forward. </p> <div> </div> <p class="chalmersElement-P"> </p> <div> </div> <div><p class="chalmersElement-P">The standard approach involves firing a laser pulse at a thin metallic foil, with the interaction resulting in a beam of highly charged protons. The new method involves instead first splitting the laser into two less intense pulses, before firing both at the foil from two different angles simultaneously. When the two pulses collide on the foil, the resultant electromagnetic fields heat the foil extremely efficiently. The technique results in higher energy protons whilst using the same initial laser energy as the standard approach.<span style="background-color:initial;color:rgb(51, 51, 51)"> </span></p></div> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> <img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/JulienFerri_190508_200x300.jpg" class="chalmersPosition-FloatLeft" alt="" style="width:180px;height:270px" /> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P">“This has worked even better than we dared hope. The aim is to reach the energy levels that are actually used in proton therapy today. In the future it might then be possible to build more compact equipment, just a tenth of the current size, so that a normal hospital could be able to offer their patients proton therapy,” says Julien Ferri, a researcher at the Department of Physics at Chalmers, and one of the scientists behind the discovery. <br /></p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P">The unique advantage of proton therapy is its precision in targeting cancer cells, killing them without injuring healthy cells or organs close by. The method is therefore crucial for treating deep-seated tumours, located in the brain or spine, for example. The higher energy the proton beam has, the further into the body it can penetrate to fight cancer cells.  </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P">Although the researchers’ achievement in doubling the energy of the proton beams represents a great breakthrough, the end goal is still a long way off. </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> <img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/TundeFulop_180829_270x.jpg" class="chalmersPosition-FloatRight" alt="" style="width:180px;height:270px" /> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P">“We need to achieve up to 10 times the current energy levels to really target deeper into the body. One of my ambitions is to help more people get access to proton therapy. Maybe that lies 30 years in the future, but every step forward is important,” says Tünde Fülöp, Professor at the Department of Physics at Chalmers. </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P">Accelerated protons are not only interesting for cancer treatment. They can be used to investigate and analyse different materials, and to make radioactive material less harmful. They are also important for the space industry. Energetic protons constitute a large part of cosmic radiation, which damages satellites and other space equipment. Producing energetic protons in the lab allows researchers to study how such damage occurs, and to develop new materials which can better withstand the stresses of space travel. </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P">Together with research colleague Evangelos Siminos at the University of Gothenburg, Chalmers researchers Julian Ferri and Tünde Fülöp used numerical simulations to show the feasibility of the method. Their next step is to conduct experiments in collaboration with Lund University. </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P">“We are now looking at several ways to further increase the energy level in the proton beams.  Imagine focusing all the sunlight hitting the Earth at a given moment onto a single grain of sand – that would still be less than the intensity of the laser beams that we are working with. The challenge is to deliver even more of the laser energy to the protons.” says Tünde Fülöp. </p> <div><p class="chalmersElement-P"><span style="background-color:initial">The new scientific results have been published in the respected journal Communications Physics, part of the Nature family.</span><br /></p></div> <p class="chalmersElement-P"></p> <p class="chalmersElement-P"></p> <p class="chalmersElement-P"><a href="https://www.nature.com/articles/s42005-019-0140-x"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the scientific article &quot;Enhanced target normal sheath acceleration using colliding laser pulses. </a><span style="background-color:initial"> ​<br /><br /></span></p></div> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"><span><strong>Text: </strong></span><span>Mia Halleröd Palmgren, </span><a href="mailto:mia.hallerodpalmgren@chalmers.se">mia.hallerodpalmgren@chalmers.se</a> and <span>Joshua Worth,</span><a href="mailto:joshua.worth@chalmers.se"> joshua.worth@chalmers.se</a><span>​ </span></p> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P"><strong>Photos</strong> by Johan Bodell (Tünde Fülöp) and Mia Halleröd Palmgren</p> <p class="chalmersElement-P"><span style="background-color:initial"></span></p> <p class="chalmersElement-P"> </p> <div><h3 class="chalmersElement-H3">More about the research:</h3> <p class="chalmersElement-P"> </p> <p class="chalmersElement-P">The research has been financed by the Knut and Alice Wallenberg Foundation, within the framework for the project <a href="http://kaw.wallenberg.org/forskning/laser-ska-ge-energirika-joner-forskning-och-medicin">“Plasma based compact ion sources”.</a> <span>Other financiers include the European Research Council and the Swedish Research Council.  The simulations have been done at the national data centre Chalmers Centre for computational Science and Engineering. (C3SE)</span></p> <p class="chalmersElement-P"> </p> <div><br /></div></div> <div> </div> <div><span style="background-color:initial"><img src="/SiteCollectionImages/Institutioner/F/750x340/Tünde_Julien_Evangelos750x340.jpg" alt="" style="margin:5px" /><br /></span><span style="background-color:initial">The researchers behind the method: Tünde Fülöp and Julien Ferri at Chalmers University of Technology and Evangelos Siminos at the University of Gothenburg have recently presented a technique which makes it possible to create proton beams with double the energy, through the use of colliding laser pulses.​<br /></span></div> <div> </div> <div><span style="background-color:initial"><br /></span></div> <div> </div> <div><h3 class="chalmersElement-H3">For more information, contact: </h3></div> <div> </div> <div><div class="page-content"><a href="/sv/personal/redigera/Sidor/Tünde-Fülöp.aspx"></a><div> <a href="/en/staff/Pages/Julien-Ferri.aspx">Julien Ferri​</a><span style="background-color:initial">, Postdoctoral researcher, Department of Physics, Chalmers University of Technology, +46 70 986 74 76, </span><a href="mailto:julien.ferri@chalmers.se​​">julien.ferri@chalmers.se​​​</a><br /></div> <div><br /></div> <div><a href="/en/staff/Pages/Tünde-Fülöp.aspx">Tünde Fülöp</a>, <span style="background-color:initial">Professor, Department of Physics, Chalmers University of Technology, </span><span style="background-color:initial">+46 72 986 74 40</span>,<a href="mailto:tunde.fulop@chalmers.se"> tunde.fulop@chalmers.se​</a></div> <div><br /></div> <div> <a href="https://www.physics.gu.se/english/about-the-department/staff?languageId=100001&amp;userId=xsimev">Evangelos Siminos,​</a><span style="background-color:initial"> </span><span style="background-color:initial">Assistant Professor, Department of Physics, University of Gothenburg,  ​</span><span style="background-color:initial"><br /></span><span style="background-color:initial">+46 31 786 91 61,</span><span style="background-color:initial"> </span><a href="mailto:evangelos.siminos@physics.gu.se">evangelos.siminos@physics.gu.se</a></div></div></div>Mon, 27 May 2019 07:00:00 +0200https://www.chalmers.se/en/departments/see/news/Pages/climate-smart-vacation.aspxhttps://www.chalmers.se/en/departments/see/news/Pages/climate-smart-vacation.aspxNew tool lets you plan climate smart vacations<p><b>​​As the climate issue heats up, consumers are becoming more conscious of their impact on the environment. ‘Flygskam’, or ‘flight shame’ is a growing trend that reflects the increasing awareness of flying’s harm to the environment. Now, researchers from Chalmers present a tool that allows consumers to evaluate the outcome of their different travel options.</b></p>​<span style="background-color:initial">The new website – <a href="https://travelandclimate.org/">Travel and Climate</a> – gives an instant and simple calculation of the emissions from different modes of travel for a given journey. </span><span style="background-color:initial"></span><div>For example, for 2 people travelling from London to Barcelona, the tool gives a calculation of 130kg of carbon dioxide equivalent emitted for a train or bus journey, 244kg by private car, and 371kg by plane. </div> <div>The Swedish version of the tool has already existed for around a year, receiving coverage in most of the major Swedish media outlets, and has had over 50,000 unique visitors since it began. Alongside the launch of the English version, the Swedish version - <a href="https://klimatsmartsemester.se/">Klimatsmart Semester</a> - has been revamped with more information and a new design. </div> <div><span style="background-color:initial"><img src="/SiteCollectionImages/Institutioner/SEE/Profilbilder/Jorgen_Larsson170x220_2.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />The website is based on research by Jörgen Larsson and his group from Chalmers University of Technology, looking at the impact of Swedish flying habits on the climate. </span><br /></div> <div>“Our studies have shown that Swedish flying results in emissions of about a tonne of carbon dioxide equivalents per citizen. This is around five times higher than the global average, and roughly the same as Sweden’s total emissions from car usage,” says Jörgen Larsson.</div> <div><span style="background-color:initial">Their analysis of historical data from 1990 to 2017 has also shown the dramatic increase in flying overall. International flights from Sweden have doubled, from 0.5 trips per person in 1990 to 1.0 trips per person in 2017. The average distance of these trips is about 2700 km one-way – roughly the distance from Stockholm to Madrid. </span></div> <div><span style="background-color:initial">Continued rising emissions from aviation threaten the target of the Paris Agreement, of keeping global warming well below two degrees. Jörgen Larsson hopes the new tool will help to further spread knowledge of flying’s damaging effects and contribute to fewer flights. </span></div> <div>“Reaching the two-degree target will require changes in our lifestyle. Maybe if everyone adopted a vegan diet instead, flight emissions would not have to decrease so much,” he explains. “But that would also be a large intervention in our lifestyle.”</div> <div>Much is made of the technical developments of aircraft and engines, with better aerodynamics and more efficient operations. It is true that these have had an effect, and emissions per passenger kilometre have fallen by roughly 2% each year in the period. “The problem is that air travel has simultaneously risen by over 3%,” says Jörgen Larsson. Emissions in total have therefore increased. </div> <div><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">The data behind the tool:</span><br /></div> <div>The new website offers consumers a chance to easily and quickly calculate the impact of different transport methods for their travel plans, offering a side by side comparison. </div> <div><a href="https://www.youtube.com/watch?v=ssLsUHfi0hE&amp;feature=youtu.be">Watch a video trailer for the new website here</a>.  </div> <div><span style="background-color:initial">“Previous methods of measurement had only accounted for the fuel tanked in each country. This meant that a flight from Stockholm to New York, via Amsterdam for example, only the fuel loaded in Stockholm would be measured,” explains Jörgen Larsson. The researchers’ new methods have been developed to account for the whole trip. </span><br /></div> <div>All the calculations and figures for the tool are available in a methodological report on the site. It is currently only available in Swedish, but an English version will be published in June. </div> <div><br /></div> <div>The following organisations have supported the development of the platform: </div> <div><ul><li>Region Västra Götaland via Klimat 2030</li> <li>the Centre for Tourism at the University of Gothenburg</li> <li>Chalmers University of Technology</li> <li>West Sweden Tourism Board</li> <li>The City of Gothenburg</li> <li>Göteborg &amp; Co</li> <li>Mistra Urban Futures, and </li> <li>Mistra Sustainable Consumption. </li></ul></div> <div><a href="https://travelandclimate.org/who-behind-it">More about the funding, organisations and the researchers behind the project can be found here​</a>. </div> <div><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">More info:</span><br /></div> <div>Criticism of such a powerful industry as aviation has not been met without resistance. Last year, Jörgen Larsson found himself the centre of a media storm, with the Swedish Air Transport Society accusing him and his colleagues of conducting unscientific research. The ensuing debate resulted in the Presidents of both Chalmers University of Technology and KTH publishing an<a href="https://www.dn.se/debatt/hyfs-och-kunskap-kravs-i-debatten-om-flyg-och-klimat/"> article in a Swedish national newspaper condemning the hypocrisy and incorrect information being spread from the Swedish aviation industry</a>.</div> <div>Eventually, the researchers met with representatives from the Swedish Air Transport Society to clear the air, and a positive working relationship developed. Now, the researchers have started a collaboration with Swedavia, the national Swedish airport operator, giving them direct access to large amounts of data for use in further research.</div> Thu, 23 May 2019 15:00:00 +0200https://www.chalmers.se/en/departments/see/news/Pages/More-stars-will-surround-the-Horsehead.aspxhttps://www.chalmers.se/en/departments/see/news/Pages/More-stars-will-surround-the-Horsehead.aspxMore stars will surround the Horsehead in the future, new study reveals<p><b>​​​Why are so few stars born around the Horsehead Nebula, even though all the conditions seem to be there? That question can now answer a Chalmers-led research team.</b></p><img src="/SiteCollectionImages/Institutioner/SEE/Nyheter/Orion-horsehead-340.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:210px;height:210px" />​<span style="background-color:initial">The Horsehead Nebula in the constellation Orion is one of the most famous shapes in the sky, as was recently seen in <a href="https://www.svtplay.se/video/21925806/eurovision-song-contest-2019/eurovision-song-contest-2019-semifinal-1-14-maj-21-00?position=3531&amp;cmpid=del:tw:20190522:semifinal-1:pla:lp">Australia’s spectacular performance in the Eurovision Song Contest</a>. </span><div><br /></div> <div>The Horsehead is located in Orion B, one of two main molecular clouds in the constellation Orion’s “belt”.</div> <div>In this cloud, astronomers believe that many new stars could be born - but on the contrary, the birth rate is unusually low. <span style="background-color:initial">In a new study, a research team led by Chalmers astronomer Jan Orkisz explains why: the cosmic filaments in Orion B are still young, and star formation in the filaments might become more active in the future.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">– Comparing the filaments of Orion B with other clouds, such as the nearby cloud Orion A where the filaments are more massive, gravitationally bound and actively forming stars, can show that Orion B is a very peculiar cloud. Despite its size and mass, it is known for its very low star formation activity, says Jan Orkisz, at the Department of Space, Earth and Environment at Chalmers. </span><br /></div> <div> </div> <div><img src="/SiteCollectionImages/Institutioner/SEE/Profilbilder/Jan_Orkisz_170.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />– However, we rather interpret it as the fact that Orion B is simply a cloud in an early evolutionary stage: <span style="background-color:initial">its filamentary architecture already shows similarities with more evolved environments, and star formation in the filaments might become more active in the future. </span><span style="background-color:initial">If this is the case, then it also shows that filaments play an important part early in the evolution of interstellar matter, as they start to structure the gas before gravity has taken over, says Jan.</span></div> <div><span style="background-color:initial"><br /></span></div> <div>Further studies of the Orion Molecular Cloud Complex can thus help understanding all the stages of the cycle through which the Galactic matter goes.</div> <div><br /></div> <div><span style="background-color:initial">The text is based on the press release: </span><a href="https://www.iram-institute.org/EN/news/2019/174.html">Filaments around the Horsehead Nebula are still too young to form stars, from I​RAM, Institut de Radioastronomie Millimétrique</a><span style="background-color:initial">.</span><br /></div> <div><div><br /></div> <div><a href="https://www.aanda.org/articles/aa/pdf/2019/04/aa33410-18.pdf">Read the full article about the study: A dynamically young, gravitationally stable network of filaments in Orion B, published in Astronomy &amp; Astrophysics</a>.  </div></div> ​​<div><em>Image credits: </em></div> <div><em>Top image: IRAM, Institut de Radioastronomie Millimétrique. ​</em><br /><em>Image of the Horsehead Nebula: </em><a href="https://commons.wikimedia.org/wiki/Category:Horsehead_Nebula#/media/File:Barnard_33.jpg"><em>Ken Crawford. (Click to see high resolution image)</em></a><em>.</em><br /><em>Portrait Jan Orkisz: Christian Löwhagen</em><br /></div>Wed, 22 May 2019 15:00:00 +0200https://www.chalmers.se/en/departments/e2/news/Pages/The-app-that-alarms-by-itself-at-a-motorbike-accident.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/The-app-that-alarms-by-itself-at-a-motorbike-accident.aspxThe app that alarms motorbike accidents by itself<p><b>​A new motorcycle accident alerting system is currently being tested on Swedish roads. Thanks to an algorithm developed at Chalmers University of Technology, information from the sensors in the motorcyclist’s mobile phone can be used to identify that an accident has occurred and automatically call for help via SOS Alarm.</b></p>​<span style="background-color:initial">Motorcyclists are exposed and unprotected in traffic compared to most road users. Every year, around 250 drivers are seriously injured in Sweden, according to statistics from the Swedish Transport Agency. The trend is increasing – in 2018, 47 motorcyclists was killed, which is the highest rating in ten years.</span><div><br /></div> <div>”If a single vehicle accident occurs and the driver ends up unconscious in the ditch, it may take a long time before anyone notices what has happened”, says Chalmers researcher Stefan Candefjord, being a biker himself, and also one of the originators of the algorithm that is now used by SOS Alarm in a pilot project.</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Appen%20som%20själv%20larmar%20vid%20en%20mc-olycka/Stefan_och_BAS_500px.jpg" class="chalmersPosition-FloatLeft" alt="Stefan Candefjord and Bengt Arne Sjöqvist" style="margin:5px" /><em>T</em><em>he researchers Stefan Candefjord and Bengt Arne Sjöqvist have developed the algorithm that makes it possible to automatically trigger an alarm to SOS Alarm, via an app in the mobile phone, in the event of a motorcycle accident. The sensor alarm technology could also be used for other unprotected road users such as horse riders and all-terrain vehicle drivers.</em></div> <div><i><br /></i></div> <div><br /></div> <div><strong><br /></strong></div> <div><strong><br /></strong></div> <div><strong>Fast and safe help for unprotected road users</strong></div> <div>Stefan Candefjord and Bengt Arne Sjöqvist, who both do research at the department of Electrical Engineering, are active in the field of prehospital e-health/Digital Health. The research is about developing smart IT solutions as support for decisions, aiming at to provide the right care and prompt treatment, even before the patient is brought to hospital. In this case, it is important to rapidly detect that an accident has occurred to alert the right rescue resources and thus minimizing injuries and deaths.</div> <div><br /></div> <div>“Our starting point was to develop a function that is similar to eCall, which modern cars of today are equipped with, though instead directed to unprotected road users”, says Bengt Arne Sjöqvist. “The advantage of a mobile app is that it is considerably easier to distribute to the users than a specially designed hardware would be – since a smartphone already is present in almost every person's pocket.”</div> <div><br /></div> <div>Initially, the intended target group was single practitioners such as cyclists, horse riders and all-terrain vehicle drivers. In 2017, the researchers got in touch with a group of master’s students via Chalmers Ventures, who signed up for the idea. The company Detecht was founded with a focus on motorcycle drivers – a homogeneous target group with similar interests and a high safety awareness, that the app can satisfy.</div> <div><br /></div> <div>“The two of us and Detecht are complementing each other. They are knowledgeable in the field and are driving the business model, while we can concentrate on the actual research part of the project,” says Stefan, who also holds a seat in the company board and will continue to contribute to the development of the functions of the algorithm.</div> <div><br /></div> <div>For his part, Bengt Arne works within the framework of the &quot;Prehospital ICT Arena&quot;, with a related research project called TEAPaN (Traffic Event Assessment, Prioritizing and Notification). The purpose is to establish an IT structure that, in a coordinated way, is able to connect various eCall solutions – the motorcycle app being one of several examples – with the society's rescue resources so that they are prioritized correctly, and the effort is optimized based on what actually has happened.</div> <div><br /></div> <div>In addition to the safety aspect, the app also offers the users some social features such as sharing routes, pictures and statistics with other motorcyclists. This is something that hopefully makes the app even more interesting to use. In Sweden alone, there are more than 300 000 registered motorcycles, and internationally the interest is also very widespread – the market is considered to be substantial.</div> <div><br /></div> <div><strong>Being tested by SOS Alarm and 15 000 bikers</strong></div> <div>For three months, including May with a possibility of an extension, the app is tested in a pilot project at SOS Alarm.</div> <div><br /></div> <div>“SOS Alarm is usually being restrictive in integrating new functions into their system, so it is gratifying that they are welcoming this technology and want to evaluate how sensor-controlled alarms can aid in their work”, Bengt Arne says.</div> <div><br /></div> <div>Nor has it been difficult to recruit motorcycle drivers who want to take part in the test.</div> <div><br /></div> <div>“The test results for April show that the about 15 000 motorcyclists involved in the project altogether have driven 120 000 kilometers, corresponding to three laps around the globe. One single minor accident did occur. The crash was correctly detected, the alarm was triggered as planned, and the operator at SOS Alarm sent intended rescue units to the position of the accident”, Stefan says.</div> <div><br /></div> <div>“The number of false alarms has been low, only once was the alarm released unjustified. One possible reason is that the driver probably had the phone lying loosely during the ride, which may have affected the data that the app registered and therefore incorrectly was interpreted as if the motorcycle overturned at speed. We will analyze all such events to decide what further improvements in the algorithm that can be made.”</div> <div><br /></div> <div>In the future, functions based on artificial intelligence are planned to be integrated, which will enhance the motorcyclists’ experiences. For example, the app can then recommend roads, fika stops and driving routes based on previous choices and preferences of the driver.</div> <div><br /></div> <div>From a societal perspective, it is the possibility to save lives that is the crucial factor. The time that elapses from the occurrence of an accident until the victims get help can be directly decisive for the outcome. In addition to providing increased safety for the driver, the app is also giving reassurance for family and friends, who quickly can get a notice about an accident.</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Appen%20som%20själv%20larmar%20vid%20en%20mc-olycka/5-Mockups-midle-min_750px.jpg" class="chalmersPosition-FloatLeft" alt="Features from mororcycle app" style="margin:5px" /><br /><br /><br /></div> <div><br /></div> <div><strong>This is how the app works</strong></div> <div>The mobile phone's built-in sensors record speed, g-force and rotation. The information from the run is analyzed using an algorithm that identifies driving behavior that indicates that the driver is no longer in control of the motorcycle. If the alarm is activated, the driver has 60 seconds to turn off the alarm, otherwise, an alarm message is automatically triggered, contacting SOS Alarm with information about the position. Then, the alarm operator first tries to establish contact with the driver over the phone. If the driver is in need of assistance, alternatively is not contactable, rescue units are alerted to the current location.</div> <div>Basically any smartphone can be used, the only requirement is that the driver downloads and activates the app &quot;Detecht – your motorcycle app&quot;. Anyone interested can participate as a test driver.</div> <div><br /></div> <div>Text: Yvonne Jonsson</div> <div>Photo: Detecht and Yvonne Jonsson (portrait photo)</div> <div><br /></div> <div><a href="https://www.detecht.se/" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more about Detecht – Automatic Crash Detection for Motorcyclists</a><br /></div> <div><br /></div> <div><a href="https://www.sosalarm.se/pilotprojekt-sensorlarm-mc/" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more on SOS Alarm´s webpage (in Swedish): Pilotprojekt för sensorlarm vid mc-olyckor​</a><br /></div> <div><br /></div> <div><br /></div> <div><div><strong>For more information please contact:</strong></div> <div><a href="/en/staff/Pages/stefan-candefjord.aspx">Stefan Candefjord</a>, Assistant Professor in the Biomedical electromagnetics research group, Department of Electrical Engineering, Chalmers University of Technology, <a href="mailto:%20stefan.candefjord@chalmers.se">stefan.candefjord@chalmers.se</a></div> <div><br /></div> <div><a href="/en/staff/Pages/bengt-arne-sjoqvist.aspx">Bengt Arne Sjöqvist,</a> Associate Professor and former Professor of Practice in the Biomedical signals and systems research group, <a href="mailto:%20bengt.arne.sjoqvist@chalmers.se">bengt.arne.sjoqvist@chalmers.se</a>, and Programme Manager for <a href="https://picta.lindholmen.se/en" target="_blank">Prehospital ICT Arena (PICTA) at Lindholmen Science Park​</a></div></div> <div><br /></div> Thu, 16 May 2019 12:30:00 +0200https://www.chalmers.se/en/departments/bio/news/Pages/Big-grant-to-develop-new-robust-microorganisms.aspxhttps://www.chalmers.se/en/departments/bio/news/Pages/Big-grant-to-develop-new-robust-microorganisms.aspxBig grant to develop new, robust microorganisms<p><b>​She wants to develop more robust microorganisms, with a high capacity for producing environmentally friendly materials, chemicals and fuels. For this, Professor Lisbeth Olsson receives over SEK 14 million from the Novo Nordisk Foundation.</b></p>​The news came a few days ago: Lisbeth Olsson receives the prestigious grant as Distinguished Investigator from the Danish founding agency Novo Nordisk Foundation, NNF. The grant is given to established and senior researchers, who do pioneering research in biotechnology, and it entails a total of 14.3 million SEK over five years.<br /><br />“This feels great. The NNF grant makes it possible for me to focus, with a large project that go into depths of my research,” says Professor Lisbeth Olsson, also Head of the division of Industrial Biotechnology at Chalmers Department of Biology and Biological Engineering.<br /><br />“I will hire two doctoral students and a post-doc in this project, and expect them to join us this fall.”<br /><br /><strong>Environmentally friendly production with microorganisms<br /></strong><br />Microorganisms can produce many of the substances we need – like bioethanol, plastics and pharmaceutical proteins – using, for example, biomass as raw material. But when the microorganisms are removed from their natural habitat to work in another environment, they may become stressed. This stress causes damage to the cell, and its attempt to repair the damage costs a lot of energy. Ultimately, the production capacity of the microorganisms, or even their survival ability, will be at stake.<br /><br />Further knowledge is therefore needed to start new industrial processes where microorganisms are used, and also to streamline existing processes. The researchers want to find out how the microorganisms can become more robust, to withstand challenging environmental conditions.<br /><br />“As I first came to Chalmers, 11 years ago, I defined microbial robustness as one of the areas where I wanted to focus. Over the years, we have also had a number of doctoral students working with this. Now it’s time to further develop the concept,” says Lisbeth Olsson.<br /><br />“We will use large-scale tools, and take advantage of biodiversity existing in nature, as well as the one we have created in our lab. Our methods will be new, while taking advantage of the research we have done before. This will be &quot;microbial robustness 2.0&quot;. Previously, we have also focused mainly on biomass. Now, we are working with a more generalized technology.”<br /><br /><strong>Writing about biotechnology<br /></strong><br />The researchers' work while seeking grants means putting a lot of thought into every relevant problem, Lisbeth Olsson says.<br /><br />“For each grant application you twist and turn your research issues, and dwell on the relevant questions. It is great to have received this grant – now I have the opportunity to realize what’s been on my mind.”<br /><br />She is working in parallel with editing and writing chapters of a book on biofuels, where a chapter also is devoted to microbial robustness. This will be a follow-up to a book that came out ten years ago.<br /><br />“It is really exciting to work with colleagues around the world, and reflect on the learnings from developing this research area in recent years,” Lisbeth Olsson concludes.<br /><br />Note: Read more about the Research Leader Programme at Novo Nordisk Foundation <a href="https://researchleaderprogramme.com/">here</a>. You can also read the announcement text about the grants <a href="https://researchleaderprogramme.com/news/the-novo-nordisk-foundation-awards-dkk-99-million-to-excellent-research-leaders-within-biotechnology-based-synthesis-and-production-research/">here​</a>, or more about the recipients for research within biotechnology-based synthesis and production <a href="https://researchleaderprogramme.com/recipients/?a=biotechnology-based-synthesis-and-production-research">here​</a>.<br /><br /><br />Text: Mia Malmstedt<br />Photo: Martina Butorac<br />Thu, 09 May 2019 14:00:00 +0200https://www.chalmers.se/en/departments/e2/news/Pages/40-years-of-bone-conduction-hearing.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/40-years-of-bone-conduction-hearing.aspx40 years of bone conduction hearing<p><b>​About 40 years ago, Mona Andersson in Gothenburg got the chance to live a new hearing life. She became one of three patients who received a new kind of hearing aid, anchored via a skin penetrating titanium screw to the skull bone. This was the starting point for a unique collaboration between Chalmers and Sahlgrenska University Hospital.​​</b></p>​​<span style="background-color:initial">Today, nearly 300 000 people worldwide have been able to improve their quality of life thanks to the bone anchored hearing aid, BAHA. The main reason behind the success is the innovative technical solution, combined with the ability to unite research and entrepreneurship.</span><div><br /></div> <div>In connection to the anniversary, the 'BAHA pioneers' reunited – the patient Mona Andersson, the medical doctor Anders Tjellström and the engineer Bo Håkansson. Their collaboration started in the late 1970s, and they have many memories and stories to share about how the bone anchored hearing aid went from a prototype to a worldwide success.</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Pionjärerna%20som%20öppnat%20en%20ny%20värld%20av%20ljud/Mona-och-Bo_400px.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px" /><br /><em><br /></em></div> <div><em>Mona Andersson visiting Bo Håkansson's laboratory at Chalmers in the late 1970s. (Picture to the left, from Chalmers archives)</em></div> <div><em></em><i><br /></i><br /></div> <div><br /></div> <div>Bone anchored hearing aids are suitable for patients who have some form of mechanical hearing impairment in the outer or middle ear. The hearing aid utilizes the ability of bone to transmit vibrations in the body, thus creating an alternative path for the sound to travel to the inner ear, via bone instead of air.</div> <div><br /></div> <div>“Initially, there were a lot of people, both in academia and in industry, who were hesitant about the benefits of the technology and gave us the advice to devote ourselves to something else”, Bo Håkansson says. “However, we were convinced that the idea had a future, and eventually we succeeded in gaining acceptance for it.”</div> <div><br /></div> <div>It took almost 15 years before the healthcare system began to use hearing aids based on bone conduction attached to the done directly. Since then the Gothenburg region has become somewhat of a center for companies engaged in that kind of hearing products.</div> <div><br /></div> <div>The diagnosis of dizziness is another promising research area where the bone conduction technology also can be used. Bo Håkansson and his research colleagues at Chalmers have developed a new type of bone conduction transducer to make diagnoses more accurate in a way that is also more comfortable for the patient. Dizziness and problems related to the balance organs affect about half of all over 65 years.</div> <div>So, the development of bone conduction seems to have a bright future as well...</div> <div><br /></div> <div>Text: Yvonne Jonsson</div> <div><br /></div> <div><div><strong>For more information, please contact:</strong></div> <div><a href="/en/Staff/Pages/bo-hakansson.aspx">Bo Håkansson</a>, Professor in Biomedical Engineering at the Department of Electrical Engineering at Chalmers University of Technology, +46 31 772 18 07, <a href="mailto:%20boh@chalmers.se">boh@chalmers.se</a></div></div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Pionjärerna%20som%20öppnat%20en%20ny%20värld%20av%20ljud/BAHA_350px.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div> <div><div><em>A titanium screw is anchored in the skull bone, transmitting sound vibrations to the inner ear. Illustration: Oticon Medical</em></div> <div><br /></div> <div><a href="/en/projects/Pages/BAHA.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about BAHA​</a></div></div> <div><br /></div> <div><a href="/sv/institutioner/e2/nyheter/Sidor/Mot-pionjarerna-.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read an article about 'the BAHA pioneers' in Swedish​</a></div>Tue, 07 May 2019 14:00:00 +0200https://www.chalmers.se/en/centres/gmv/news/Pages/new-online-tool-shows-impact-on-the-global-goals.aspxhttps://www.chalmers.se/en/centres/gmv/news/Pages/new-online-tool-shows-impact-on-the-global-goals.aspxNew online tool shows impact on the Global Goals<p><b>A newly launched free online tool wants to help the academia and other businesses to describe their impact on the 17 Global Goals. The purpose is to raise the level of awareness about the whole Agenda 2030 and to strengthen users&#39; contributions to sustainable development.</b></p><div><div>The tool is called the SDG Impact Assessment Tool and is developed by the Gothenburg Center for Sustainable Development at Chalmers University of Technology and the University of Gothenburg, in collaboration with SDSN Northern Europe and Mistra Carbon Exit, and with financial support from the Region Västra Götaland via the Maritime Cluster of Western Sweden.</div> <div><br /></div> <div>The Gothenburg Center for Sustainable Development is the owner of the tool. Director Jan Pettersson says that this is a very important asset, initiated for researchers and other actors to be able to work with and relate to the Global Goals in their own business.</div> <div><br /></div> <div>– We want to offer a tool to strengthen the work on sustainable development within research, education, and collaboration within both Chalmers and the University of Gothenburg. But the tool is not just for the universities. It is also valuable for all types of businesses that want to strengthen their contribution to the Global Goals.</div> <div><br /></div> <div>The tool is free and available online for anyone to use. The base for the tool is a method that has been used previously but then only in a paper format. By launching a web version of the tool, the project manager Anders Ahlbäck hopes to reach more people with the message that a holistic view of the Global Goals is important.</div> <div><br /></div> <div>– Today, many businesses spend time selecting &quot;their&quot; goals in Agenda 2030, often through mapping. With the SDG Impact Assessment Tool, we try to reverse the perspective. The tool offers a structured way to describe the impact on the Global Goals, based on the users’ own knowledge. Do we have positive, negative or no impact on a goal? Do we know, or do we lack knowledge? By thinking about these issues, we hope that users can strengthen their contributions to Agenda 2030 and the Global Goals for sustainable development.</div> <div><br /></div> <div>There are many ways to address the Global Goals and the tool reflects that fact. Depending on how the user defines the purpose of making an assessment in the tool, it can fulfill different objectives. Some examples are: to identify risks and opportunities related to the Global Goals; to set own goals adapted to sustainable development; to tell shareholders and other stakeholders about what impact one's business has; or to engage all employees in promoting the goals and allocating responsibility across the organization to achieve progress. All these variants differ in mindset – but differences can also be turned into coherence.</div> <div><br /></div> <div>– If, for example, several municipalities, county councils and regions use the tool in the same way, it will be easier to achieve consensus on common challenges, says Anders Ahlbäck.</div> <div><br /></div> <div><br /></div> <div>To access the web tool, just follow the <a href="https://sdgimpactassessmenttool.org/">direct link to the SDG Impact Assessment Tool</a> and create a user account.</div> <div><br /></div> <div>More information on assessments regarding the Global Goals for sustainable development can be found on the <a href="https://www.unsdsn-ne.org/our-actions/initiatives/sdg-impact-tool/">SDSN Northern Europe website​</a>.</div> <div><br /></div></div> <div><br /></div> <div><em style="background-color:window;font-size:8pt">By: Nina Silow</em><br /></div>Mon, 06 May 2019 17:00:00 +0200https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Chalmers-in-new-Nordic-network-for-artificial-intelligence.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Chalmers-in-new-Nordic-network-for-artificial-intelligence.aspxNew Nordic network for artificial intelligence<p><b>​The Nordic Five Tech alliance of leading technical universities announce the creation of the Nordic Artificial Intelligence Network. The Nordic AI Network will make the region a global hub in AI research, education and innovation.</b></p>​With global interest in the many opportunities of artificial intelligence (AI), the network will bring together, and harness, leading expertise in the field with the aim of taking the landmark step to make the region a global hub in AI research, education and innovation. <br /><br />The Nordic AI Network will begin activities already in 2019 with selected events. In coming years, it will share educational resources, stimulate research collaborations, as well as study and share best practices and business models for collaboration with industry. Its activities will, overall, set the stage to communicate Nordic excellence in the field of AI and obtain competitive funding at both the national and European levels. <br /><br />“AI is set to change the world and the Nordics must be part of this tremendous shift. Bringing expertise from across our countries under one umbrella through the Nordic AI Network is a crucial step in making the Nordics a global hub in artificial intelligence. We are very pleased to launch the network and build up activities in coming months”, says Ilkka Niemelä, President of Aalto University in Finland. <br /><br /><img src="/SiteCollectionImages/Nya%20bilder/Porträtt%20-%20Chalmersanställda/Stefan-Bengtsson_portrait.jpg" class="chalmersPosition-FloatRight" alt="Chalmers President Stefan Bengtsson" style="margin:5px" />“Chalmers has, since 2018 committed to a big investment in Artificial Intelligence, that will raise research, development and innovation in this area to a new level. Chalmers AI Research Centre spans research and education at several departments, as well as close collaboration with industry. With this new Nordic AI network, we are further strengthening our activities, while benefiting the entire Nordic region”, says Stefan Bengtsson, President of Chalmers University of Technology.<br /><br />Made up of Aalto University, Chalmers University of Technology, the Technical University of Denmark, KTH Royal Institute of Technology and the Norwegian University of Science and Technology (NTNU), the Nordic Five Tech universities are each home to research institutes and centres dedicated to AI. The decision to create the Nordic AI Network was made at the meeting of Nordic Five Tech presidents on 26 April 2019. <br /><br /><strong>Read more:</strong><br />Nordic Five Tech: <a href="http://www.nordicfivetech.org/" target="_blank">www.nordicfivetech.org</a><br />Chalmers AI Research Centre: <a href="/en/centres/chair/Pages/default.aspx" target="_blank">www.chalmers.se/chair</a> <br /><div><br /></div> <div><br /></div> <em>Photo above</em><br /><em>Back row from left: Ilkka Niemelä, President of Aalto University, Anders O. Bjarklev, President of the Technical University of Denmark, Gunnar Bovim, President of NTNU, Stefan Bengtsson, President of Chalmers University of Technology.</em><br /><br /><em>Front row from left: Lars Kai Hansen (DTU), Annika Stensson Trigell (KTH), Kolbjörn Tunström (Chalmers), Giuseppe Durisi (Chalmers), Ole Jakob Mengshoel (NTNU), Ivica Crnkovic (Chalmers), Ville Kyrki (Aalto).</em>Thu, 02 May 2019 12:00:00 +0200https://www.chalmers.se/en/departments/physics/news/Pages/Graphene_sponge_paves_the_way_for_future_batteries.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Graphene_sponge_paves_the_way_for_future_batteries.aspxGraphene sponge paves the way for future batteries<p><b>​To meet the demands of an electric future, new battery technologies will be essential. One option is lithium sulphur batteries, which offer a theoretical energy density roughly five times that of lithium ion batteries. Researchers at Chalmers University of Technology, Sweden, recently unveiled a promising breakthrough for this type of battery, using a catholyte with the help of a graphene sponge. ​​​</b></p><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/Graphene%20aerogel%20toppbild%202.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;height:181px;width:250px" /><div><span style="background-color:initial">The researchers’ novel idea is a porous, sponge-like aerogel, made of reduced graphene oxide, that acts as a free-standing electrode in the battery cell and allows for better and higher utilisation of sulphur. <br /></span><br /></div> <div>A traditional battery consists of four parts. First, there are two supporting electrodes coated with an active substance, which are known as an anode and a cathode. In between them is an electrolyte, generally a liquid, allowing ions to be transferred back and forth. The fourth component is a separator, which acts as a physical barrier, preventing contact between the two electrodes whilst still allowing the transfer of ions. <br /><br /></div> <div>The researchers previously experimented with combining the cathode and electrolyte into one liquid, a so-called ‘catholyte’. The concept can help save weight in the battery, as well as offer faster charging and better power capabilities. Now, with the development of the graphene aerogel, the concept has proved viable, offering some very promising results. <br /><br /></div> <div>Taking a standard coin cell battery case, the researchers first insert a thin layer of the porous graphene aerogel.</div> <div><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/Carmen%20Cavallo.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:250px;height:218px" />“You take the aerogel, which is a long thin tube, and then you slice it – almost like a salami. You take that slice, and compress it, to fit into the battery,” says Carmen Cavallo of the Department of Physics at Chalmers, and lead researcher on the study. <br /><span style="background-color:initial">Then, a sulphur-rich solution – the catholyte – is added to the battery. The highly porous aerogel acts as the support, soaking </span><span style="background-color:initial">up the solution like a sponge. </span><br /></div> <div>“The porous structure of the graphene aerogel is key. It soaks up a high amount of the catholyte, giving you high enough sulphur loading to make the catholyte concept worthwhile. This kind of semi-liquid catholyte is really essential here. It allows the sulphur to cycle back and forth without any losses. It is not lost through dissolution – because it is already dissolved into the catholyte solution,” says Carmen Cavallo. <br /><br /></div> <div>Some of the catholyte solution is applied to the separator as well, in order for it to fulfil its electrolyte role. This also maximises the sulphur content of the battery. </div> <div>Most batteries currently in use, in everything from mobile phones to electric cars, are lithium-ion batteries. But this type of battery is nearing its limits, so new chemistries are becoming essential for applications with higher power requirements. Lithium sulphur batteries offer several advantages, including much higher energy density. The best lithium ion batteries currently on the market operate at about 300 watt-hours per kg, with a theoretical maximum of around 350. Lithium sulphur batteries meanwhile, have a theoretical energy density of around 1000 to 1500 watt-hours per kg. </div> <div><br /><img src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/Aleksandar%20Matic.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;height:218px;width:250px" />“Furthermore, sulphur is cheap, highly abundant, and much more environmentally friendly. Lithium sulphur batteries also have the advantage of not needing to contain any environmentally harmful fluorine, as is commonly found in lithium ion batteries,” says Aleksandar Matic, Professor at Chalmers Department of Physics, who leads the research group behind the paper. <br /><br /></div> <div>The problem with lithium sulphur batteries so far has been their instability, and consequent low cycle life. Current versions degenerate fast and have a limited life span with an impractically low number of cycles. But in testing of their new prototype, the Chalmers researchers demonstrated an 85% capacity retention after 350 cycles. <br /><br /></div> <div>The new design avoids the two main problems with degradation of lithium sulphur batteries – one, that the sulphur dissolves into the electrolyte and is lost, and two, a ‘shuttling effect’, whereby sulphur molecules migrate from the cathode to the anode. In this design, these undesirable issues can be drastically reduced. </div> <div><br /></div> <div><span style="background-color:initial">The researchers note, however, that there is still a long journey to go before the technology can achieve full market potential. <br />&quot;Since these batteries are produced in an alternative way from most normal batteries, new manufacturing processes will need to be developed to make them commercially viable,&quot; says Aleksandar Matic.<br /></span><br /></div> <div><span style="background-color:initial">Text: Joshua Worth,<a href="mailto:%20joshua.worth@chalmers.se"> joshua.worth@chalmers.se</a></span></div> <div><span style="background-color:initial">Images: Johan Bodell, <a href="mailto:%20johan.bodell@chalmers.se​">johan.bodell@chalmers.se</a></span></div> <div><span style="background-color:initial"><br /></span></div> <div>Read the article,<a href="https://www.sciencedirect.com/science/article/pii/S0378775319300916?via%3Dihub"> “A free-standing reduced graphene oxide aerogel as supporting electrode in a fluorine-free Li2S8 catholyte Li-S battery,”</a> published in the Journal of Power Sources. ​<span style="background-color:initial"><br /></span></div> <div><h3 class="chalmersElement-H3" style="font-family:&quot;open sans&quot;, sans-serif"><img src="/SiteCollectionImages/Institutioner/F/750x340/Graphene%20Aerogel%20Toppbild.jpg" alt="" style="font-size:14px;font-weight:300;margin:5px" />​​​​<span style="background-color:initial;color:rgb(51, 51, 51);font-family:&quot;open sans&quot;, sans-serif;font-size:14px;font-weight:300">The reduced graphene oxide aerogel developed by the researchers, that makes the catholyte concept viable.</span></h3></div> <div>​<br /><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">M</span><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">ore about the Chalmers lab used in this research </span></div> <div>The researchers investigated the structure of the graphene aerogel at the <a href="/en/researchinfrastructure/CMAL/Pages/default.aspx">Chalmers Materials Analysis Laboratory (CMAL)​</a>. CMAL has advanced instruments for material research. The laboratory formally belongs to the Department of Physics, but is open to all researchers from universities, institutes and industry. The experiments in this study have been carried out using advanced and high-resolution electron microscopes.</div> <div>Major investments, totalling around 66 million Swedish kronor have recently been made to further push CMAL to the forefront of material research.</div> <div>The investments included the purchase of a monochromated and double aberration corrected (CETCOR image and ASCOR probe Cs-correctors) TEM JEOLARM (200 kV) 40-200, equipped with a field emission gun (FEG). This was the first paper to be published with the use of this brand-new microscope, which was used to investigate the structure of the aerogel. <br /><br /></div> <div><a href="/en/departments/physics/news/Pages/Come-and-experience-Chalmers’-unique-electron-microscope.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />The new electron microscope, which weighs as much as a full grown elephant, will be formally inaugurated on 15 May in a ceremony at Chalmers. </a></div> <div>The Knut and Alice Wallenberg Foundation has contributed around half of the investments.</div> <div><br /></div> <div><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">For more information, contact:</span><br /></div> <div><strong><a href="/en/Staff/Pages/Carmen-Cavallo.aspx">Carmen Cavallo</a></strong>, <span style="background-color:initial">Researcher, Department of Physics, Chalmers University of Technology, </span><span style="background-color:initial">+46 31 772 33 10, </span><span style="background-color:initial"><a href="mailto:carmen.cavallo@chalmers.se">carmen.cavallo@chalmers.se​</a></span></div> <div><br /></div> <div><strong><a href="/en/staff/Pages/Aleksandar-Matic.aspx">Aleksandar Matic​</a></strong>, P<span style="background-color:initial">rofessor, Department of Physics, Chalmers University of Technology, </span><span style="background-color:initial">+46 31 772 51 76, </span><span style="background-color:initial"><a href="mailto:matic@chalmers.se">matic@chalmers.se </a></span></div>Mon, 29 Apr 2019 07:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/The-researcher-helps-the-wave-power-industry-forward.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/The-researcher-helps-the-wave-power-industry-forward.aspxThe researcher helps the wave power industry forward<p><b>​With the ocean covering approximately 72% of the earth’s surface, wave energy is thereby holding great potential to satisfy a significant percentage of the worldwide energy supply. The challenge is to reduce costs and improve the performance of wave energy systems. In that case, the Chalmers researcher Shun-Han Yang has helped the industry to boost their positions.</b></p><div>​<img src="/SiteCollectionImages/Institutioner/M2/Nyheter/shunhanyang.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />Shun-Han Yang is a researcher at the Department of Mechanics and Maritime Sciences at the Division of Marine Technology. She has developed a numerical analysis procedure that can be used for assessing the long-term structural service life of the components used in wave energy systems. </div> <div><br /></div> <div> </div> <div>“The procedure allows the industry to assess the damage the waves impose mooring devices and power cables, etc., while calculating the wave power system’s power performance and energy cost” says Shun-Han Yang. </div> <div> </div> <div><br /></div> <div> </div> <div>The developed methodology has supported the industry and taken them from a stage of concept design validation to a full-scale prototype testing at sea. In technical terms from at TRL-level* of 3-4 to a TRL-level of 6-7. By using the numerical method, the potential structural failure or operation obstacles are identified, which would otherwise be devastating if the situation was encountered in reality. </div> <div> </div> <div><br /></div> <div> </div> <div>Jonas Kamf is CEO of Waves4Power, one of the industrial partners that Chalmers cooperates with. He explains that Waves4Power is a company under development with limited resources and therefore a strong partner network becomes a key resource. He sees Chalmers as an extra important partner for their business. </div> <div> </div> <div><br /></div> <div> </div> <div>“It's a lot of idea development but also verification of results from our test activities. Real results are set against theoretical calculations and in this way, we can link theory and reality in order to get even closer to reality in our forward-looking work” says Jonas Kamf. </div> <div> </div> <div><br /></div> <div> </div> <div>The collaboration with Chalmers in various fields also opens up for Waves4Power to be able to apply for extra financial support for technical development that would otherwise have been difficult to take part in. The connection between academia and industry is very important for this part of their development financing, he says, but perhaps even more importantly he sees Chalmers as a partner who can make them more realistic. </div> <div> </div> <div><br /></div> <div> </div> <div>“As a research resource, Chalmers is trustworthy and gives us as a collaborative partner an honest image, not a glorified picture of our reality. It’s easy to become blind in a development company and just see advantages. In this way, Chalmers is good at taking us down to earth and show us the reality as it is. It has laid a good foundation for good work in research and development.” </div> <div> </div> <div><br /></div> <div> </div> <div>For Chalmers, collaboration is a prerequisite for research. Shun-Han Yang believes that the close cooperation between academia and industry is what made her research possible. </div> <div> </div> <div><br /></div> <div> </div> <div>“To ensure the practicality of the numerical method, constant feedback given by the industry which highlights that challenges are necessary” says Shun-Han Yang. </div> <div> </div> <div><br /></div> <div> </div> <div>Waves4Power expects that within the next two years they will be fully commercial with a couple of installed wave power parks based on their latest technology, but it will continue to be a technology in development and Chalmers is a key resource.</div> <div> </div> <div><br /></div> <div> </div> <div><em>*TRL, Technology readiness levels are a method of estimating technology maturity of critical technology elements of a program during the acquisition process. They are determined during a technology readiness assessment that examines program concepts, technology requirements, and demonstrated technology capabilities.</em></div> <div> </div> <div><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial"><br /></span></div> <div><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">Read more</span></div> <p class="chalmersElement-P"><span><a href="/en/departments/m2/research/marinetechnology/Pages/default.aspx">Division of Marine Technology</a></span></p> <h3 class="chalmersElement-H3"> </h3>Fri, 26 Apr 2019 08:00:00 +0200