News: Globalhttp://www.chalmers.se/sv/nyheterNews related to Chalmers University of TechnologyThu, 22 Feb 2018 17:50:23 +0100http://www.chalmers.se/sv/nyheterhttps://www.chalmers.se/en/news/Pages/The-Chalmers-fence-2018.aspxhttps://www.chalmers.se/en/news/Pages/The-Chalmers-fence-2018.aspxMeasuring the take-off force to spare the horses<p><b>​When Gothenburg Horse Show 2018 sets off, it’s world premier for the down-dug weight scales, and measures, the students at Chalmers have developed during a year at the university. By measuring the force of the horse jump, they hope to be able to spare the horses.</b></p><p></p> <div>​For the third year in a row, the Gothenburg Horse Show is working with Chalmers University of Technology to determine the ultimate jump trajectory for horses. This year, they’ll be measuring the force of the horses’ take-off and landing through help from the Chalmers students – something that has never been done before. We met large parts of the project group at the Johanneberg campus.<br /><br /></div> <div>– We’re developing a technique to measure the force the horse’s uses in the jump-off and landing, which is big weight scales that we dig down underneath the ground, in front of and after the fence. We want to evaluate how the horses are jumping, in order to optimize their movement and in that way improve the sport, says Alexandra Kettil who’s project manager and at the same time study her fourth year at industrial economy.<br /><br /></div> <div>– We’re trying to use this data to help horses and to help this sport to improve more, says Ammar Kreish who is studying his second year at automation and mechatronics. As a child he rode for five years, and chose last fall to be a part of this project since it’s for the horses best interest.<br /><br /></div> <div>Another one of the student’s in the project, Patrik Jalnäs, is showing us the test sensor they use to simulate a horse’s jump, as the real ones are too big to move around. When his finger covers the light sensor, digital pulses are sent to the computer softwear. <br /><br /></div> <div>– It’s interesting to get the chance to implement the knowledge you get from studying into this. Hopefully the entire procedure will be automatic during the competition, but we’ll be there in case something would go wrong, says Patrik Jalnäs.<br /><br /></div> <div>As in previous years, the audience will see the results directly on the screens in the arena. The findings will be used as additional information which will allow Chalmers’ students to continue analysing jump trajectories.</div> <div> </div> <h4 class="chalmersElement-H4">About the project </h4> <div>The Chalmers Fence project is the work of Chalmers students who are using their expertise to develop unique measuring systems focusing on the health and well-being of the horses.<br /></div> <div>– We’re continuing to gather new information on how horses actually jump, findings that challenge the traditional image of horse jumping, says Magnus Karlsteen, Associate Professor at Chalmers University of Technology.<br /><br /></div> <div>Many of the students are pleased to be able to combine a passion for horses with their studies.<br /><br /></div> <div>– It’s fun to be a part of a project like this, as it’s not very usual to work with students from other programmes and grades at Chalmers. Horses is also one of my biggest interests and it means a lot being able to work with them in my studies, says Alexandra Kettil. </div> <div> </div> <div>The EuroHorse equestrian fair, taking place at the same time as the Gothenburg Horse Show, will feature jumping obstacles as well as other equestrian research projects.<br /><br /></div> <div>For more information on Chalmers’ equestrian projects, visit: <a href="/en/centres/sportstechnology/research/equestrian-sports/Pages/default.aspx">Equestrian sports at Chalmers</a><br /><a href="/en/centres/sportstechnology/research/equestrian-sports/Pages/default.aspx"></a><br /><a href="/en/centres/sportstechnology/research/equestrian-sports/Pages/default.aspx"></a></div> <div>Read more: <a href="/en/news/Pages/This-years-Chalmers-fence-measures-the-force-of-the-jumps-.aspx">This year's Chalmers fence measures the force of the jumps</a></div> <div> </div> <h4 class="chalmersElement-H4">For more information, please contact: </h4> <div>Magnus Karlsteen</div> <div>Associate Professor in Physics, responsible for Equestrian sports at Chalmers University of Technology</div> <div>+46-73-079 42 47</div> <div>magnus.karlsteen@chalmers.se<br /><br /><strong>Text:</strong> Sofia Larsson-Stern<br /><strong>Photo and video:</strong> Johan Bodell<br /></div> <p></p>Thu, 22 Feb 2018 17:00:00 +0100https://www.chalmers.se/en/areas-of-advance/production/news/Pages/Seed-bed-for-future-production-researchers.aspxhttps://www.chalmers.se/en/areas-of-advance/production/news/Pages/Seed-bed-for-future-production-researchers.aspxSeed-bed for future production researchers<p><b>​During 2018, the Production Area of Advance launches a new Research Associate Programme. Four students from four different master programs have been appointed as the pioneering research associates. Product development in sports, Scandinavia-Balkan industrial design comparison, sustainability in connection to digital technologies and bio-composites are their topics of interest.</b></p>​<span style="background-color:initial">The number of young educated people is decreasing around the world and in the future it will be a fierce competition regarding recruiting young engineers. This is recognized in industry but also by universities. Chalmers wants to secure a new generation of researchers but not everyone knows what it is like to work as a researcher. The Production Area of Advance now launches a new Research Associate Programme. <a href="https://en/Staff/Pages/johan-malmqvist.aspx">Professor Johan Malmqvist who is the Education Officer within the Production Area of Advance​</a> explains the purpose of the programme.</span><div><br /></div> <div>– I really like my job as a researcher and this is an opportunity to show students some of the benefits of being a researcher. With this programme, we want to enable talented students from our master programmes to obtain some experience from research activities such as developing research plans, carrying out simulations or experiments, analyzing data and presenting or publishing your results.</div> <div><br /></div> <div>The programme is inspired by the “Undergraduate Research Opportunity Programs” often found at US universities. However, the structure is unique for the Production Area of Advance Research Associate Programme. It is meant to have a bottom-up approach. If interested in applying for a position in the programme, students are urged to take the initiative to make contact with a faculty member with a project idea. The idea is then put into an application and, if the application is granted, the research associate will receive a senior researcher as mentor during the project. Projects are to be reported both mid-term and in the end of the spring term. </div> <div><br /></div> <div><strong>The pioneers of this seed-bed programme are four students from four different master programmes.</strong></div> <div><br /></div> <div><strong>Priska Herzog</strong> is studying <a href="/en/education/programmes/masters-info/Pages/Product-Development.aspx" target="_blank">Product Development</a> and her mentor is <a href="/en/staff/Pages/iola.aspx">Professor Ola Isaksson</a>. Priska is very active in her spare time and like adventurous sports like snowboarding, surfing, kayaking and mountain biking. She also takes her interest a step further and has e.g. developed and built an own snowboard. Her research associate project is therefore linked to her burning interest in sports. The title is “Involve R&amp;D in sports in product development”. But why is sports interesting for product development research? Priska explains her view.</div> <div><br /></div> <div>– Sport athletes differs from other consumers in that they are very experimental in finding advantages that can make them win in a competition. Sports technology therefore often includes short product development cycles, rapid prototyping, and a collaborative customer that need better products to win and brings immediate feedback and a personal connection. This area is also somewhat less cost sensitivity than other consumer areas. We tend to put money on our hobbies.</div> <div><br /></div> <div>With this project Priska wants to raise awareness about sports technology in product development to improve the offering of sports projects for students and to improve the contact areas between Chalmers and sports.</div> <div><br /></div> <div><strong>Adis Imsirovic </strong>is a student in <a href="/en/education/programmes/masters-info/Pages/Industrial-Design-Engineering.aspx" target="_blank">Industrial Design Engineering</a> with <a href="/en/Staff/Pages/helena-stromberg.aspx">Senior Lecturer Helena Strömberg</a> as his mentor. </div> <div><br /></div> <div>– I am born and raised in Sweden but my family is from Bosnia and we have spent all summer holidays there. During my upbringing I have developed a curiosity about if the design thinking in the two cultures differs. </div> <div><br /></div> <div>The research associate programme gives Adis the opportunity to dive into this question. His project is called “Do designers from Scandinavia interpret design differently from designers in Balkan?”. Adis wants to perform a study where he meets universities and teachers as well as product development departments in companies in both Sweden and Balkan countries. Are there any differences? If yes, how would it be possible to cooperate spite the differences and what difficulties would occur? </div> <div><br /></div> <div><strong>Hasnain Thathia</strong> is a student in <a href="/en/education/programmes/masters-info/Pages/Production-Engineering.aspx" target="_blank">Production Engineering</a> mentored by <a href="/en/Staff/Pages/melanie-despeisse.aspx">Assistant Professor Mélanie Despeisse</a>. His project focuses on the new challenges faced by the manufacturing industry as a result of the increased need for mass-customised products while improving the sustainability performance of production systems. The title of Hasnain’s project is “The influence of digital technologies towards sustainable production”.</div> <div><br /></div> <div>– My aim is to review digital technologies in the manufacturing industry and assess their potential to improve performance with a specific focus on environmental sustainability. These technologies include software for modelling and simulation, virtual/digital factory, cloud computing and sensors which play a huge role in Industry 4.0. I would like to evaluate the performance of these digital technologies implemented in industries and compare them with the traditional technologies from a sustainable perspective (energy, waste, material usage, data accuracy).</div> <div><br /></div> <div><strong>Shankar Paramasivam</strong> is a student in <a href="/en/education/programmes/masters-info/Pages/Applied-Mechanics.aspx" target="_blank">Applied Mechanics</a> with <a href="/en/staff/Pages/martin-fagerstrom.aspx">Associate Professor Martin Fagerström</a> and <a href="/en/staff/Pages/gunnar-westman.aspx">Professor Gunnar Westman​</a> as his mentors. In his project, Shankar faces a bit of a challenge since his background is from mechanical engineering and the projects includes quite a lot of chemistry. This project also differs from the others since it is initiated by the mentor and not the student. The title is “Supporting the upscaling of sustainable biocomposites from cellulose fibres for use in structural components”.</div> <div> </div> <div>– The aim of the project is to support research to find a more sustainable alternative to the commonly used composites carbon fiber composites and glass fiber composites that are non-biodegradable and takes a lot of energy to produce.</div> <div><br /></div> <div>Even if the subject is new to Shankar, he finds the project very interesting.</div> <div><br /></div> <div>– It combines the mechanical engineering knowledge that I already have with a new area. Even though the project includes chemical knowledge, I feel confident since I will have two mentors by my side. I look forward to learn more about biocomposites.</div> <div><br /></div> <div><br /></div> <div><em>We will follow these projects and report the results in the end of the spring term. Did the concept of the research associate programme turn out successful? Stay tuned to find out.</em></div> <div><br /></div> <div><br /></div> <div><strong>For more information, please contact:</strong></div> <div><a href="/en/Staff/Pages/johan-malmqvist.aspx">Professor Johan Malmqvist</a>, Dean of education MATS and Educational Officer of the Production Area of Advance.</div> <div><br /></div> <div><br /></div> <div>Text: Nina Silow</div>Tue, 20 Feb 2018 00:00:00 +0100https://www.chalmers.se/en/centres/gmv/news/Pages/Chalmers-and-the-University-of-Gothenburg-Intensifying-Sustainable-Development-Cooperation.aspxhttps://www.chalmers.se/en/centres/gmv/news/Pages/Chalmers-and-the-University-of-Gothenburg-Intensifying-Sustainable-Development-Cooperation.aspxThey are intensifying sustainable development cooperation<p><b>​​​Chalmers University of Technology and the University of Gothenburg have signed a renewed collaboration agreement for sustainable development, which also implies a new plan for the joint organisation named the Centre for Environment and Sustainability. The new agreement encompasses a broader approach that covers all aspects of sustainable development with a clearer focus on the United Nation s 17 global sustainable development goals. The organisation will also be renamed Gothenburg Centre for Sustainable Development.</b></p>The collaboration that has evolved into today’s joint organisation was initiated already in the early 1990s by 20 professors at Chalmers and the University of Gothenburg’s Faculty of Science, when the Section for Environmental Science was formed. The operations were gradually expanded, and in the year 2000, the organisation was renamed the Centre for Environment and Sustainability.<br /><br /><div>Since then, the organisation’s environmental focus has been complemented with additional aspects of sustainable development. The new agreement gives the joint organisation a clear instruction to focus its work around the implementation of the global sustainable development goals, and also to host the regional SDSN Northern Europe network, which is part of the global Sustainable Development Solutions Network, SDSN.</div> <div>‘A lot has happened since environmental considerations were seen as something foreign at a technological university. Since then, the environmental perspectives have been integrated into the economic and social dimensions of sustainable development. Research and education with a sustainability focus are obvious, important and necessary components of everything we do. Cooperation with subjects and disciplines at the University of Gothenburg has reinforced this development. The new agreement will enable us to keep developing our cooperation further and also to connect with other actors locally and globally even better,’ says Stefan Bengtsson, president and CEO of Chalmers University of Technology.<br /><br /></div> <div>‘The University of Gothenburg sees the focus on sustainable development as a key aspect of our future and has decided that it should permeate all parts of our operations. As part of our ambition to help solve the global challenges, it is also important that our sustainability efforts are connected to the UN’s 17 global sustainability goals, Agenda 2030. The renewed collaboration agreement will strengthen our joint focus on sustainable development,’ says Eva Wiberg, Vice-Chancellor of the University of Gothenburg.<br /><br /></div> <div>Gothenburg Centre for Sustainable Development is organised directly under the two university heads and is tasked to inspire the sustainable development work at Chalmers and the University of Gothenburg and create strategic cooperation both internally and with various external actors. The organisation will continue to serve as a forum for various areas of expertise and a platform for projects, initiatives and networks. Another important task is to contribute and disseminate knowledge in the area of sustainable development and to arrange trainings, seminars and other events for various target groups.<br /><br /></div> <div>‘As a result of the renewed collaboration agreement, we will be able to continue our core assignment with full force: to promote cooperation with an aim to generate and implement knowledge about sustainable development. The collaboration between Chalmers and the University of Gothenburg implies a huge potential to help find solutions to global challenges together with external actors,’ says Anders Ekbom, acting director of Gothenburg Centre for Sustainable Development.<br /><br /></div> <div><a class="pdficon" href="https://gmv.chalmers.gu.se/digitalAssets/1673/1673585_avtal-om-samverkan-inom-omr--det-h--llbar-utveckling-signerad.pdf">Agreement (in Swedish)</a></div> <div><a class="pdficon" href="https://gmv.chalmers.gu.se/digitalAssets/1673/1673586_verksamhetsuppdrag-till-g--teborgs-centrum-f--r-h--llbar-utveckling-signerad.pdf">Gothenburg Centre for Sustainable Development’s official assignment (in Swedish)<span></span></a><a class="pdficon" href="https://gmv.gu.se/digitalAssets/1679/1679785_tidslinje_ny.pdf"><u><font color="#0066cc"></font></u></a></div> <div><a class="pdficon" href="https://gmv.gu.se/digitalAssets/1679/1679785_tidslinje_ny.pdf"><u><font color="#0066cc">Timeline 1990–2017 (in Swedish)</font></u></a>​<br /></div> <a class="pdficon" href="https://gmv.chalmers.gu.se/digitalAssets/1673/1673586_verksamhetsuppdrag-till-g--teborgs-centrum-f--r-h--llbar-utveckling-signerad.pdf"></a>Mon, 19 Feb 2018 13:00:00 +0100https://www.chalmers.se/en/departments/mc2/news/Pages/Unconventional-superconductor-may-be-used-to-create-quantum-computers-of-the-future.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Unconventional-superconductor-may-be-used-to-create-quantum-computers-of-the-future.aspxExciting new technology for quantum computing<p><b>​With their insensitivity to decoherence what are known as Majorana particles could become stable building blocks of a quantum computer. The problem is that they only occur under very special circumstances. Now researchers at Chalmers University of Technology have succeeded in manufacturing a component that is able to host the sought-after particles.</b></p>​Researchers throughout the world are struggling to build a quantum computer. One of the great challenges is to overcome the sensitivity of quantum systems to decoherence, collaps of superpositions. One track within quantum computer research is therefore to make use of what are known as Majorana particles, which are also called Majorana fermions. Microsoft is also committed to the development of this type of quantum computer.<br /><br />Majorana fermions are highly original particles, quite unlike those that make up the materials around us. In highly simplified terms, they can be seen as half electron. In a quantum computer the idea is to encode information in a pair of Majorana fermions which are separated in the material, which should, in principle, make the calculations immune to decoherence.<br /><br />So where do you find Majorana fermions? <br /><br />In solid state materials they only appear to occur in what are known as topological superconductors – a new type of superconductor that is so new and special that it is hardly ever found in practice. But a research team at Chalmers University of Technology is now among the first in the world to submit results indicating that they have actually succeeded in manufacturing a topological superconductor.<span></span><br /><br />“Our experimental results are consistent with topological superconductivity,” says Floriana Lombardi, Professor at the Quantum Device Physics Laboratory at Chalmers.<br /><br />To create their unconventional superconductor they started with what is called a topological insulator made of bismuth telluride, Be2Te3. A topological insulator is mainly just an insulator – in other words it does not conduct current – but it conducts current in a very special way on the surface. The researchers have placed a layer of a conventional superconductor on top, in this case aluminium, which conducts current entirely without resistance at really low temperatures.<br /><br /><img src="/SiteCollectionImages/Institutioner/MC2/QDPL/ThiloBauch_180218_01_300px.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px" />“The superconducting pair of electrons then leak into the topological insulator which also becomes superconducting,” explains Thilo Bauch, Associate Professor in Quantum Device Physics.<br /><br />However, the initial measurements all indicated that they only had standard superconductivity induced in the Bi2Te3 topological insulator. But when they cooled the component down again later, to routinely repeat some measurements, the situation suddenly changed – the characteristics of the superconducting pairs of electrons varied in different directions.<br /><br />“And that isn’t compatible at all with conventional superconductivity. Suddenly unexpected and exciting things occurred,” says Lombardi.<br /><br />Unlike other research teams, Lombardi’s team used platinum to assemble the topological insulator with the aluminium. Repeated cooling cycles gave rise to stresses in the material (see image below), which caused the superconductivity to change its properties.<br /><br />After an intensive period of analyses the research team was able to establish that they had probably succeeded in creating a topological superconductor.<br /><img src="/SiteCollectionImages/Institutioner/MC2/News/floriana_300.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:200px;height:304px" /><br />“For practical applications the material is mainly of interest to those attempting to build a topological quantum computer. We ourselves want to explore the new physics that lies hidden in topolo<span><span><span></span></span></span>gical superconductors – this is a new chapter in physics,” Lombardi says.<span><span></span></span><br /><br />The results were recently published in the scientific journal Nature Communications: <a href="https://www.nature.com/articles/s41467-017-02069-z">Induced unconventional superconductivity on the surface states of Bi2Te3 topological insulator</a><br /><br />More about quantum computers and the Majorana particle<br />A large Quantum computer project in the <a href="/en/centres/wacqt/Pages/default.aspx" target="_blank">Wallenberg Quantum Technology Centre</a> is underway at Chalmers University of Technology. It is, however, based on technology other than topological superconductors.<br /><a href="https://en.wikipedia.org/wiki/Majorana_fermion">The Majorana particle</a> was predicted by the Italian physicist Ettore Majorana in 1937. It is a highly original fundamental particle which – like electrons, neutrons and protons – belongs to the group of fermions. Unlike all other fermions the Majorana fermion is its own antiparticle.<br /><br />Text: Ingela Roos/Chalmers<br /><br /><strong>For more information, please contact:</strong><br />Floriana Lombardi, Professor in Quantum Device Physics, Department of Microtechnology and Nanoscience (MC2), Chalmers University of Technology, +46-31-772 33 18, <a href="mailto:floriana.lombardi@chalmers.se">floriana.lombardi@chalmers.se</a><br />Thilo Bauch, Associate Professor in Quantum Device Physics, Department of Microtechnology and Nanoscience (MC2), Chalmers University of Technology, +46-31-772 33 97, <a href="mailto:thilo.bauch@chalmers.se">thilo.bauch@chalmers.se</a><br />Mon, 19 Feb 2018 08:00:00 +0100https://www.chalmers.se/en/departments/see/news/Pages/Will-image-the-distant-universe.aspxhttps://www.chalmers.se/en/departments/see/news/Pages/Will-image-the-distant-universe.aspxReceivers from Chalmers will image the distant universe<p><b>​From March 1, 2018, when the world&#39;s most powerful telescope will target the most distant universe it is equipped with new receivers that have been developed and produced at Chalmers University. The extremely sensitive instruments also provide new opportunities to search for water in space and in our solar system.&quot;Being the best in the world is part of our daily life. There are simply no other options if you wish to participate on this level, &quot;says Victor Belitsky, professor and leader of the Research Group for Advanced Receiver Development (GARD) at Chalmers.</b></p>​<span style="background-color:initial">The ALMA telescope consists of 66 dish antennas located 5000 meters above sea level in Chile on a high plateau in the Andes. The dishes work linked together as one telescope and can make far sharper observations than individual radio telescopes can do.</span><div>Each of the 66 antennas has several receivers for observation at different wavelengths. The Chalmers receivers now being used allow observations of light with a wavelength of between 1.4 and 1.8 millimeters – known as Alma’s Band 5. This is microwave radiation, which can be compared with visible light whose longest wavelengths are around 740 nanometres (less than a thousandth of a millimetre).</div> <div>“At these frequencies we can observe cold parts of the universe. For example, regions where stars and planets are formed are of great interest. When ALMA's dishes work together, you get significantly higher resolution than you can do with current optical telescopes, &quot;says Victor Belitsky, whose research group is part of Onsala Space Observatory at the Department of Space, Earth and Environment.</div> <div>- The frequencies that are now accessible can give scientists for example a new understanding of how stars, planets and galaxies are born, he says.</div> <h6 class="chalmersElement-H6">Perfect timing​</h6> <div><a href="/SiteCollectionImages/Institutioner/SEE/Nyheter/GARD_names.jpg"><img class="chalmersPosition-FloatRight" src="/SiteCollectionImages/Institutioner/SEE/Nyheter/GARD-Chalmers-small.jpg" alt="" style="margin:5px" /></a>The receivers were developed by the GARD group (click on the image for a larger version with all names) in a project funded by the EU program <a href="https://ec.europa.eu/growth/sectors/space/research/fp6_sv">EC FP6​</a> in 2006-2012. The timing proved to be perfect. When the first receivers were ready, new research areas were opening up that specifically required ALMA to be able to observe in Band 5.</div> <div>Victor and his colleagues had completed six complete receivers, but to handle the order for a further 73, a team from NOVA (Netherlands Research School for Astronomy) was invited to participate. They integrated GARD’s components in the receiver cassettes.</div> <div>&quot;Their effort was important to complete the delivery, but the major challenge was to develop the receiver and manufacture the components. We are delivering to the world's best and most advanced telescope, and thanks to our knowledge and experience, they have now got the best possible receivers”.</div> <h6 class="chalmersElement-H6">Cool receivers</h6> <div>The biggest challenge in the production of receivers for radio telescopes is how to reduce noise from their surroundings and get as clean a signal as possible.</div> <div>“The noise sets the limit for how weak signals can be detected. It’s like finding the right station on a regular FM-radio, but a million times more sensitive! So, the more we can reduce different types of noise, the more we increase the possibilities for new discoveries in space”, says Victor Belitsky.</div> <div><img class="chalmersPosition-FloatRight" src="/SiteCollectionImages/Institutioner/SEE/Nyheter/Cryostat-01_300.jpg" alt="" style="margin:5px" />For example, the receivers operate at -269 degrees Celsius, four degrees above absolute zero, to counteract interference from thermal radiation. The image shows the receivers housed in their cryostat, which is designed to maintain such low temperatures.</div> <div>Reducing loss of signal in Earth's atmosphere is also the reason that the ALMA telescope is located at 5000 meters above sea level, in one of the driest places in the world. There is very little water vapor in the atmosphere above the telescope, which means the Band 5 receivers can look for water in space, both nearby and far away, Victor Belitsky explains.</div> <div>&quot;There are many uses for our receivers, both in our solar system and in distant galaxies. It depends on which research applications and topics the Alma Research Committee selects, but we know there is a lot of interest to observe water in our own solar system”.</div> <h6 class="chalmersElement-H6">Sweden among world leaders​</h6> <div>Sweden’s success with Alma is not limited to delivering instruments. Swedish researchers were among the most frequent users of the telescopes last year, second only to Japan. </div> <div>“Second place! That shows the strength and position of Swedish astronomical research in international terms. With the support of instrumentation, we are at one of the world's leading positions - both in terms of research and technology. That’s something to be proud of&quot;, says Victor Belitsky.</div> <div>​<br /></div> <div><em>Text: Christian Löwhagen.</em></div> <div><em>Photo: </em><span style="background-color:initial"><em>Oscar Mattson - GARD-Group. Receivers in the cryostat</em></span><span style="background-color:initial"><em>: </em></span><span style="background-color:initial"><em>ESO/P. Yagoubov.</em></span></div> <em> </em><div><br /> </div> <div><div><em>Contact</em>:  </div> <div><a href="/en/Staff/Pages/victor-belitsky.aspx">Victor Belitsky</a>​, professor, and Head of unit, Department of Space, Earth and Environment, Onsala Space Observatory, Advanced receiver development (GARD), +46 31 772 18 93. </div></div> Mon, 19 Feb 2018 06:00:00 +0100https://www.chalmers.se/en/departments/physics/news/Pages/Major-investment-in-safer-nuclear-fuel.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Major-investment-in-safer-nuclear-fuel.aspxMajor investment in safer nuclear fuel<p><b>​​Today’s nuclear fuel has to evolve for achieving safer nuclear power plants. Then, materials are needed which can withstand high temperatures and counteract release of dangerous substances if an accident would occur. The Chalmers researcher Mattias Thuvander has recently been granted over 33 million Swedish kronor from the Swedish Foundation for Strategic Research for developing new fuels for safer nuclear power.</b></p><span><span><img width="307" height="267" class="chalmersPosition-FloatRight" src="/SiteCollectionImages/Institutioner/F/Blandade%20dimensioner%20inne%20i%20artikel/Mattias%20Thuvander350x305.jpg" alt="" style="margin:5px" /></span></span>The Chalmers colleagues Itai Panas, Teodora Retegan and Christian Ekberg at the <span><span style="display:inline-block"></span></span>Department of Chemistry and Chemical Engineering are also part of the project team, as well as researchers at KTH and Uppsala University.<br />Together, the researchers will develop a new and more accident tolerant nuclear fuel. Both the so-called fuel pellets and the cladding tubes in which they are enclosed will have to be improved. The cladding tubes will get a chromium coating and the fuel pellets will be made from uranium nitride, instead of the uranium dioxide which is used today.<br />&quot;The new material is expected to decrease the releases of dangerous substances at high temperatures, and in this way, the consequences of an accident are mitigated,&quot; says Mattias Thuvander, Associate Professor at the Department of Physics at Chalmers University of Technology.<br />The researchers will also try new ways to improve the corrosion resistance of the fuel, in order to improve the safety margins further. In addition, they will evaluate how the fuel behaves, both during normal operation and simulated accidents.<br /><br /><strong>What is the first step in the project?</strong><br />&quot;Now I will gather the team behind the application, draw some outlines of the project and start to employ PhD students.&quot;<br /><br /><strong>What does this investment mean to your research?</strong><br />&quot;This will be a good contribution to my research, and means that we will be more people who collaborate. This is good for nuclear fuel research within Sweden.&quot;<br /><br /><strong>How can nuclear safety be improved?</strong><br />&quot;We saw in Fukushima that extreme events can have severe consequences. This has led to major research efforts globally for developing fuels that can manage without cooling for a longer period of time, giving the operator more time to undertake countermeasures. Our research aims to make the fuel more accident tolerant, and thus, safety is improved.&quot;<br /><br /><strong>Nuclear power is not often mentioned when energy research is discussed. How do you see the role of nuclear power in the future?</strong><br />&quot;Nuclear power is a proven technology for large scale electricity production with very small CO2 emissions. It will be globally important during many years, but in the future, electricity will probably be produced in other ways, such as solar, wind, hydro power and maybe so-called generation 4 nuclear power, nuclear fusion or carbon capture.  The day we can store large amounts of energy in for example batteries, maybe we can do with only solar power. But I think that day lays several decades away, and until then, we need many fossil-free technologies.&quot;<br /><br /><strong>What do you hope that your research will lead to in the long run?</strong><br />&quot;I hope to be able to contribute to safer nuclear power, but also to reinforce the Swedish nuclear fuel industry, which will probably remain for a long time, even if we decommission our nuclear power plants.&quot;<br /><br />Text: Mia Halleröd Palmgren,<a href="mailto:mia.hallerodpalmgren@chalmers.se"> mia.hallerodpalmgren@chalmers.se</a><br />Translation: Klara Insulander Björk, <a href="mailto:klaraib@chalmers.se">klaraib@chalmers.se</a><br /><a href="https://strategiska.se/pressmeddelande/deras-nya-material-ska-ge-effektivare-energisystem/"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the press release from the Swedish Foundation for Strategic Research (In Swedish).</a><br /><h5 class="chalmersElement-H5">More information: </h5> <div><a href="/en/Staff/Pages/Mattias-Thuvander.aspx">Mattias Thuvander</a>, Associate Professor, Department of Physics, Chalmers University of Technology, <a href="mailto:mattias.thuvander@chalmers.se">mattias.thuvander@chalmers.se</a>, +46 31 772 33 22<br /></div> <br />Mon, 19 Feb 2018 00:00:00 +0100https://www.chalmers.se/en/departments/e2/news/Pages/Mats-Leijon-comes-full-circle-by-joining-Chalmers.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/Mats-Leijon-comes-full-circle-by-joining-Chalmers.aspxA profile in renewables returns<p><b>​After 35 productive years as a researcher, inventor and entrepreneur, Mats Leijon has returned to Chalmers, where he once started his career, now as a Professor in Electrical Engineering.</b></p>​“This is a new and exciting step for me”, Mats Leijon says. “I see myself as a resource for younger researchers, with the purpose to contribute with my knowledge where I can make the most of it.”<br /><br />His career started with studies in electrical engineering at Chalmers in the 1980s. After having defended his doctoral thesis in high voltage engineering in 1987 he started working at ABB in Västerås. During his 13 years at the company he had several positions and worked as head of research, developing technology for measurements of diagnostics and monitoring of insulation systems and electrical power devices. In addition, he has invented and developed products in power generation. Most known is perhaps the Powerformer, a high voltage generator for connection to the grid without any intermediate transformer.<br /><br /><strong>Developing renewables</strong><br />Since 2000, Mats Leijon is a Professor in electrical science at Uppsala University. He has got about 1500 patents and has published more than 300 scientific articles. Developing renewable energy sources by using waves, wind and tidal currents have become his specialty. In parallel he has started the company Seabased, which plans, builds and installs complete, grid-connected wave parks at sea. Research and demonstration facilities are located outside Lysekil.<br /><br />He is now phasing out part of his many commitments to be able to take on the assignment at Chalmers.<br /><br />&quot;I look forward to combining theory and practice to a larger extent than I have been able to do previously in academia&quot;, says Mats Leijon. “Here at the division of Electrical Power Engineering, there are good laboratory activities.”<br /><br />In his opinion, setting high goals is crucial to success.<br /><br />“First of all, I'm going to familiarise myself with the research activities here, and then apply for funding to do exciting research, but it is still too early to say in what areas this will be.”<br /><br /><strong><img class="chalmersPosition-FloatRight" src="/SiteCollectionImages/Institutioner/E2/Profilbilder%20Elkraftteknik/Mats-Leijon_300x300px.jpg" alt="" style="margin:5px;width:250px;height:250px" />Important to do one´s homework</strong><br />“As a researcher, it is important not to limit your mind. One prerequisite is that you have done your homework and have a solid and stable knowledge base founded in basic theory”, Mats emphasises. “That gives you qualifications to take responsibility for development in society.”<br /><br />&quot;In order to implement your ideas, as an engineer, you can´t ignore what is possible to put into practice and what is commercially viable”, he states. “It is important to understand how your own research fits into the big picture.”<br /><br />He sees the conformity within academia as a problem.<br /><br />”People of the same type tend to choose the same type of solutions. The question is then if the right solutions really are highlighted? At Uppsala University, women account for about 40 percent in the field of electrical engineering. Perhaps I have some lessons learnt, that I could bring here”, Mats Leijon concludes.<br /><br />Text: Yvonne Jonsson<br /><br /><strong>Contact: </strong><a href="/en/Staff/Pages/Mats-Leijon.aspx">Mats Leijon</a>, Professor, Department of Electrical Engineering, Chalmers Fri, 16 Feb 2018 08:30:00 +0100https://www.chalmers.se/en/departments/e2/news/Pages/International-award-in-mechanical-pulping-to-Anders-Karlstrom.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/International-award-in-mechanical-pulping-to-Anders-Karlstrom.aspxRewarded for new paradigm in pulping technology<p><b>​The Arne Asplund Mechanical Pulping Award 2018 has been granted to Professor Anders Karlström, Head of the department Electrical Engineering at Chalmers.</b></p>​The award is given out every two years by Arne Asplund Mechanical Pulping Award Foundation to promote the development of new technology for the manufacture of high-yield pulp. It is awarded in recognition of outstanding achievement in research and development of mechanical pulping technology.<br /><br /><span>“To receive this award is a great honor for me”, Anders Karlström says. “I have been working with this for many years and it feels fantastic to get a confirmation that the struggle really has been worthwhile.”<span style="display:inline-block"></span></span><br /><br />The justification for the award reads as follows: “Based on his deep understanding of the fundamentals of refining in mechanical and chemimechanical pulping, Anders Karlström has initiated a paradigm shift regarding the theory of refining by introducing the entropy model. This new approach offers tools to understand the interplay in the refining zone with regards to refiner operation, plate patterns and the produced pulp quality. These new findings are already in use in several production lines offering a set of possible ways to optimise quality and specific energy input.”<br /><br />The award consists of a gold medal and an honorarium of SEK 25,000. The prize ceremony will take place at the International Mechanical Pulping Conference, IMPC, in Trondheim on 29 May. <br /><br />Regarded as the &quot;Nobel Prize&quot; in the field of mechanical pulping, the Arne Asplund Mechanical Pulping Award was established in 1985 to commemorate the Swedish engineer Arne Asplund’s contribution to the pulp and paper industry worldwide. He was the inventor of the thermomechanical pulping technique, known as the defibrator-method, also called the Asplund-method, for pulping wooden chips.<br /><br /><a href="http://www.valmet.com/media/news/press-releases/2018/the-arne-asplund-mechanical-pulping-award-2018-granted-to-anders-karlstrom/" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the press release</a><br /><br /><strong>Contact:</strong> <a href="/en/Staff/Pages/anders-karlstrom.aspx">Anders Karlström</a>, Professor and Head of the Department Electrical Engineering, Chalmers<br />Thu, 15 Feb 2018 13:00:00 +0100https://www.chalmers.se/en/areas-of-advance/materials/news/Pages/Innovation-competition-in-chemistry-for-researchers-and-start-up-companies.aspxhttps://www.chalmers.se/en/areas-of-advance/materials/news/Pages/Innovation-competition-in-chemistry-for-researchers-and-start-up-companies.aspxInnovation competition in chemistry for researchers and start-up companies<p><b>​Do you have an idea which could make the chemical industry more sustainable? Imagine Chemistry is a competition where the participants get help from experts in the field to develop their concept. The finale will be held at Chalmers in the end of May.</b></p>​This year, Chalmers is one of the partners in the chemical company Akzonobel’s innovation competition Imagine Chemistry. The competition targets start-up companies and researchers, with the aim of finding new solutions which can make the chemical industry more sustainable.<br /><br />This year’s competition calls for solutions within the following six areas:<br />•    sustainable small particle technologies<br />•    wastewater-free chemical sites<br />•    intelligent chemical plats<br />•    revolutionizing chlorate production<br />•    sustainable liquid to powder technologies<br />•    zero-footprint surfactant platforms<br /><br />In the first phase all the participants will receive coaching from experts in order to enrich their ideas. Then, 20 finalists will be chosen to spend three intense days at Chalmers in the end of May. During these days, the finalists will receive individual reviews by expert groups who will give advices and feedback on different aspects of the idea.   <br /><br />– I believe that is really rewarding, just making it to the finale. You will learn a lot and get aware of the strengths and weaknesses of your idea, says Per Thorén, communications offices for the Materials Area of Advance at Chalmers.<br /><br />Chalmers has two representatives in the jury, one researcher and one person working at Chalmers Ventures. The jury will select the most viable ideas and the winners will be presented in Runan on the last day of the event, 1 June. The price of the winners will be a collaboration with Akzonobel in order to develop the ideas further and bring them to the market.<br /><br />For more information and to register for the competition, visit <a href="https://www.imaginechemistry.com/">Imagine Chemistry</a>. The last day to send a contribution is 10 March 2018.<br />Tue, 13 Feb 2018 16:30:00 +0100https://www.chalmers.se/en/areas-of-advance/lifescience/news/Pages/The-packaging-reminds-you-of-the-medicine.aspxhttps://www.chalmers.se/en/areas-of-advance/lifescience/news/Pages/The-packaging-reminds-you-of-the-medicine.aspxNew packaging helps you remember your medicine<p><b>​It all started at Chalmers’ school of entrepreneurship. Mevia is now in the process of developing and selling its technology; the medicine packaging that won´t let you forget your pill.</b></p>​A lot of people take some kind of drug every day. Blood pressure medicines, birth control pills, vitamins, anti-inflammatory... They all have one thing in common; they are very easy to forget.<div>The small company Mevia has developed a pharmaceutical packaging solution that alerts when the medicine seems to be forgotten. A small device connects to the graphite strips printed on the blister pack, and each time the patient takes a pill, a signal is sent in real time to Mevia. If there is no signal, a reminder is sent out to the patient, a relative or healthcare provider, via SMS or an automated phone call.</div> <div><br /><strong>Started at the school of entrepreneurship</strong></div> <div>The idea originated from Stora Enso. Jesper Hassel, CEO of Mevia, started working on the idea at Chalmers’ school of entrepreneurship, where he ended up after finishing his studies in industrial engineering and management.</div> <div>– The first year at the school of entrepreneurship was similar to a regular year of a Chalmers master’s program. Then, at the end of the first year, we had to choose three or four ideas that we wanted to work with, and try to develop into companies. We really had to think about our interests, what we wanted to do, and who in the group we thought we could work with, Jesper Hassel says.<br />– Then we were assigned one of the projects. I got my first choice! Much of what we did in school after that point was connected to the company. It was a great way to get started.</div> <div>What are the needs? Where should we start? How do you write a business plan? And where can we find knowledge? They went through the questions, one by one. For Jesper Hassel, it became important to quickly find persons with great knowledge and skills in this field. Boo Edgar and Karin Wingstrand, both with many years of experience in the pharmaceutical industry, were approached early and are now members of Mevia's Board.<br /><br /><strong>Developing the company as well as the technique</strong></div> <div>Four years have passed since they left Chalmers and the company is progressing.</div> <div>– I think it’s developing quite slowly, but if you ask those who have done this earlier, they will tell you we’re doing just fine. It’s a slow industry. And the fact that we are a company is sort of a victory in itself. This means we’ve solved the problems we met so far, Jesper Hassel says.</div> <div>One of the major problems turned out to be that the technology initially was not good enough. Today, it has been updated and tested by home care providers and at retirement homes. And improvements are made all the time – continuous feedback makes it possible to develop the technique in the right way.</div> <div>– We have linked our technology to dose packaging; bags with the right dose of your daily medicines – one bag for every occasion of the day. This works well. Our technology can be linked to any type of packaging, bags or blister packs.</div> <div><br /><strong>What does it mean to miss a pill?</strong></div> <div>Why is it important to check if the medicine is taken? The question has several answers. There are some pharmaceuticals where a single missed dose can cause health problems. And some medications will not have an effect until after several weeks – and then the patient may lose faith and stop using it. A third scenario is a patient who forgets every other pill causing the doctor to raise the dosage, thinking that this is necessary. Suddenly, there is a risk of the patient being exposed to a much too high dosage.</div> <div>– We would like to primarily support those who are happy to take their medicines themselves, but would like some support. For example, elderly individuals who manage fine by themselves but see the reminder as an extra safety measure.</div> <div><br /><strong>Individual solutions</strong></div> <div>Somewhat unexpected, the idea has encountered some hesitation from home care staff.</div> <div>– They may think that their jobs will disappear, or that our system will cause them stress. Sometimes they are running late, and then the reminders can be annoying. But maybe you need to adjust the time on the dose package? We want to support the care givers and make it possible for them to spend time doing the right things, Jesper Hassel says.<br />– Everyone wants different kinds of solutions. Some want a reminder five minutes before the medication is to be taken, which would make others go insane. But it’s easy to adapt our system! You can also control who will receive the reminder. First, maybe the elderly patient will receive an SMS, and at a later stage, you may want a notification to go also to your relatives. It is easy to add and remove this.</div> <div><br /><strong>Hot company of 2017</strong></div> <div>For health economic reasons, it is of course important for the society as a whole to find systems that make it possible for elderly people to manage their health care issues themselves for a longer period of time, before home care providers step in. Or, for example, finding ways to remember vital pharmaceuticals as blood-thinning medicines and other preventive medicines, thus saving the individual from illness while at the same time reducing strain on hospitals.</div> <div>– Our vision and aim are right on track, and the fact that we’ve been appointed one of Sweden’s 33 hottest young technology companies in 2017 is a clear sign, says Jesper Hassel.</div> <div> </div> <div>Text: Mia Malmstedt<br />Photo: Private<br /></div>Mon, 12 Feb 2018 09:00:00 +0100https://www.chalmers.se/en/departments/cse/news/Pages/cybersecurity.aspxhttps://www.chalmers.se/en/departments/cse/news/Pages/cybersecurity.aspxBuilding a solid ground for cybersecurity<p><b>Substantial tools and methods to counter the most common vulnerabilities on the web. Efforts to develop a secure internet of things for industrial use. Two new, extensive cybersecurity projects are about to start at the Department of Computer Science and Engineering.</b></p><div>Cybersecurity research at Chalmers has been successful for a long time, and now two framework grants from SSF will further strengthen the area. Two applications, WebSec and Octopi, received funding in last year's major call for cybersecurity. WebSec will be conducted largely within the division for Information Security, while Octopi has extensive collaboration with the division for Functional Programming. Both projects aim at introducing the security aspect early in development, rather than searching for, and attempting to correct errors when the systems are already taken in production. <br /></div> <h3 class="chalmersElement-H3">Trying to prevent as much as possible </h3> <div><div><img src="/SiteCollectionImages/Institutioner/DoIT/News/Andrei-Sabelfeld-small.gif" class="chalmersPosition-FloatRight" alt="Photo of Andrei Sabelfeld" style="margin:5px;width:351px;height:329px" />&quot;The goal of security research is to ensure that security is not getting in the way of other development, that there are tools and automated methods that make it hard to make mistakes&quot; says Andrei Sabelfeld, Professor in the Information Security division and project leader for the new SSF-funded project WebSec. </div> <div> </div> <div>One of the most serious threats to web security is cross-site scripting, which means that the attacker is able to inject malicious code in the victim's web browser. Companies pay big money every year to detect and block security holes in the systems they use. <br /><br /></div> <div>&quot;Web systems are heterogeneous, they are implemented in different programming languages ​​and designed at different levels, so when you connect them, there will be holes. In a typical cross-site scripting attack, the attacker injects code instead of data. With new programming languages ​​and security enhancing mechanisms, such attacks can be prevented. In the project, we will develop new concepts for analyzing web applications for detection, mitigation, and prevention of cross-site scripting attacks&quot;, says Andrei Sabelfeld. </div> <div> </div> <div>For JavaScript, the most common programming language on the web, the project will deliver a platform for analysis that will aid programmers in producing code that is already protected when it goes in to production. <br /><br /></div> <div>&quot;We will also work with system-wide security. We return to the problem that different components are designed in different programming languages, and often we succeed in securing one of the components, perhaps the browser or database, but when they're connected, new errors occur that we didn't think of&quot;, says Andrei Sabelfeld. <br /><br />Here, the researchers will build mechanisms to track the information throughout the system, and ensure that no information is destroyed or leaked. </div> <h3 class="chalmersElement-H3">Internet of things moving towards the industry </h3> <div><div><img src="/SiteCollectionImages/Institutioner/DoIT/Profile%20pictures/ST/Alejandro-Russo.jpg" class="chalmersPosition-FloatRight" alt="Photo of Alejandro Russo" style="margin:5px" />&quot;The Internet of Things refers to a wide variety of connected devices - big things like cars, smaller things as a robot vacuum cleaner, your wrist watch, or anything that has some computational power and is connected to the internet. The idea is that all these devices should be interconnected to simplify and improve your life, but this trend brings major problems when it comes to security&quot;, says Alejandro Russo, professor in the division for Information Security, and project leader for Octopi.</div> <br />Industry is showing increased interest in harnessing the benefits of the internet of things, for example user data sampling and data from sensor measurements can be used to improve the next generation of products. But the overall security level is too low, and an unsafe internet of things is open for attack. There are frightening examples of how smart refrigerators have been hacked to access password data, and connected cars have been taken over and remotely controlled.</div> <br />In most programming languages used to program devices for the internet of things today, security is not a factor. Octopi will make the development of embedded systems comfortable while help placing security at a central point in the deveoper's mind.<br />&quot;The project is unique in the way it will apply the advantages of programming in very high level languages; correctness, security, reasoning about software, for developing software for the internet of things. But this vision requires solutions to some tough problems in order to become a reality&quot;, says Alejandro Russo. <br /></div> <br /> <h4 class="chalmersElement-H4">Project information</h4> <div><strong>WebSec, Säkerhetsdrivna webbsystem </strong><br />Project leader: <a href="/en/Staff/Pages/andrei.aspx">Andrei Sabelfeld</a>, Chalmers University of Technology. <br />Project members: <a href="/en/Staff/Pages/russo.aspx">Alejandro Russo</a> och <a href="/en/Staff/Pages/dave.aspx">David Sands</a>, Chalmers University of Technology, and <a href="http://www.philipp.ruemmer.org/">Philipp Rümmer</a>, Uppsala University. <br />The project is funded by <a href="https://strategiska.se/en/">Swedish Foundation for Strategic Research</a> with 30 million SEK. <br /><br /><strong>Octopi, säker programmering för sakernas internet</strong><br /> Project leader: <span><a href="/sv/personal/Sidor/russo.aspx">Alejandro Russo</a>, Chalmers University of Technology. </span></div> Project members: <a href="/en/Staff/Pages/mary-sheeran.aspx">Mary Sheeran</a>, <a href="/en/Staff/Pages/rjmh.aspx">John Hughes</a>, <a href="/en/Staff/Pages/koen.aspx">Koen Lindström Claessen</a> and <a href="/en/Staff/Pages/secarl.aspx">Carl Seger</a>, division for Functional Programming, Chalmers University of Technology. <br />Industrial Partners: Pelagicore AB, LumenRadio AB och Ericsson. <br />The project is funded by <a href="https://strategiska.se/en/">Swedish Foundation for Strategic Research</a> with 31 million SEK. <br />Mon, 12 Feb 2018 00:00:00 +0100https://www.chalmers.se/en/departments/e2/news/Pages/Can-computers-learn-how-to-diagnose-brain-diseases.aspxhttps://www.chalmers.se/en/departments/e2/news/Pages/Can-computers-learn-how-to-diagnose-brain-diseases.aspxCan computers learn how to diagnose brain diseases?<p><b>​Imaging technology has revolutionized healthcare and is widely used for diagnosis before treatment or surgery. Despite these advances, routine clinical MRI data interpretation is mostly performed by medical experts. Is it possible to use deep learning to teach computers to diagnose brain diseases as well as or in some aspect even better than medical doctors?</b></p>​<span><img src="/SiteCollectionImages/Institutioner/E2/Nyheter/Kan%20datorer%20lära%20sig%20att%20diagnosticera%20hjärnsjukdomar/Inrene_Gu_200px.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px" /><span style="display:inline-block"></span></span>Deep learning is about using powerful computers with embedded artificial intelligence to resemble the human brain's way of interpreting new information and draw conclusions in relation to what is already known. The difference is that computers, amongst other things, are able to analyse much larger amounts of data, which can be used to find better methods for solving difficult mathematical and technical problems.<br /><br />“Using a large amount of brain image data, deep learning methods can be used to find characteristic features related to some diseases, and provide powerful diagnostic tools to medical doctors”, says Irene Gu, Professor in the signal processing group at Chalmers. <br /><br />So far, only preliminary research work on deep learning is reported in the medical area. In computer vision, deep learning has reached or even surpassed human performance when it comes to face recognition. <br />Recently, Irene Gu has started a research initiative on brain image analytics using deep learning methods in close collaboration with medical doctors at Sahlgrenska University Hospital and several students. The question is: Would it be possible for artificial intelligence technology to diagnose Alzheimers’ disease, or to find brain tumors’ grading, by only using a large amount of brain image data?<br /><br />“We have obtained some initial promising results. Our ambition is to reach the performance of medical experts and yet in much simpler ways”, says Irene Gu.<br /><br /><strong>Detection of Alzheimer’s disease</strong><br />Alzheimer’s disease is a chronic neuro-degenerative disease currently incurable, its cause is not yet completely understood. According to WHO’s statistics in 2015, roughly 30 million people in the world suffer from Alzheimer’s. The symptoms consist of disorientation, language difficulties, memory loss, mood swings and many more. Early diagnosis and treatment can potentially slow down the development of the disease.<br /><br />Brain scans by magnetic resonance imaging, MRI, is a commonly used diagnostic method for detecting Alzheimer’s disease. This is often used in combination with other diagnostic methods involving a set of clinical exams, by observing the progression of dementia symptoms.<br /><br />“In this project, two dedicated deep learning methods, simple yet effective, have been developed for detection of Alzheimer’s disease. One method is based on 3D convolutional networks, another on 3D multiscale residual networks. We use a large amount of brain MRI scans to learn our computers the features of Alzheimer’s disease, and subsequently to detect Alzheimer’s patients from unseen scans”, Irene Gu explains. <br /><br />The study involved 340 subjects and about 1200 MR images, obtained from a public available dataset, Alzheimer’s Disease Neuroimaging Initiative (ADNI).<br /><br />“The proposed schemes have yielded high accuracies. For example, one method has reached an accuracy of 98,74 % on previously unseen MRI scans, and 90,11 % from MRI scans of unseen patients in the study. This almost reaches the highest state-of-the-art research results”, Irene Gu says. “This indicates that the method that we have developed is useful in this type of studies.”<br /><br />One of the projects was conducted by <a href="http://studentarbeten.chalmers.se/publication/252184-deep-learning-methods-for-mri-brain-image-analysis-3d-convolutional-neural-networks-for-alzheimers-d">Mahmood Nazari and Karl Bäckström as a master's thesis project</a>.<br />A paper submitted on this work has recently been accepted by IEEE International Symposium on Biomedical imaging (ISBI) 2018. Another MSc project is still ongoing.<br /><br /><strong>Brain tumor grading</strong><br />Encouraged by the good deep learning results using MR images, Irene Gu has started another project based on similar technology, performed by Karl Bäckström in 2017. <br /><br />“Thanks to the interest in computer-assisted brain tumor diagnostics shown by medical doctors at Sahlgrenska, and seed funding from the department of Electrical Engineering at Chalmers, we could perform a study on brain tumor (glioma) grading using deep learning”, says Irene Gu.<br /><br />A glioma is a type of tumor that starts in the glial cells of the brain or the spine. Gliomas comprise about 30 percent of all brain tumors and central nervous system tumors. About 80 percent of all malignant brain tumors are gliomas.<br /><br />The broad international collaboration networks, which the medical doctors are engaged in, have provided the researchers with brain tumor datasets from USA, France and Austria.<br />We have already obtained some promising results, though on relatively small datasets”, says Irene Gu. “Now we are conducting further in-depth research, where more students and researchers from Chalmers participate in close collaboration with Sahlgrenska University Hospital.”<br /><br />Text: Yvonne Jonsson<br /><br /><strong>More information</strong><br /><a href="/sv/personal/Sidor/Irene-Yu-Hua-Gu.aspx">Irene Gu</a>, Professor, Department of Electrical Engineering, Chalmers<br /><a href="mailto:irenegu@chalmers.se">irenegu@chalmers.se</a><br /><a href="mailto:irenegu@chalmers.se"></a><br /><a href="/en/departments/e2/research/Signal-processing-and-Biomedical-engineering/Pages/Image-and-video-analysis.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about computer vision and medical image analysis</a><br />Thu, 08 Feb 2018 08:00:00 +0100https://www.chalmers.se/en/departments/physics/news/Pages/Intense-laser-experiments-provide-first-evidence-that-light-can-stop-electrons.aspxhttps://www.chalmers.se/en/departments/physics/news/Pages/Intense-laser-experiments-provide-first-evidence-that-light-can-stop-electrons.aspxLasers provide first evidence that light can stop electrons<p><b>​By hitting electrons with an ultra-intense laser, researchers have revealed dynamics that go beyond ‘classical’ physics and hint at quantum effects.</b></p><div>Whenever light hits an object, some of the light scatters back from the surface of the object. However, if the object is moving extremely fast, and if the light is incredibly intense, strange things can happen.</div> <div>Electrons, for example, can be shaken so violently that they actually slow down because they radiate so much energy. Physicists call this process ‘radiation reaction’.  <p></p> This radiation reaction is thought to occur around objects such as black holes and quasars (supermassive black holes surrounded by a disc of gas). Being able to measure radiation reaction in the lab will therefore provide insights into processes that occur in some of the most extreme environments in the universe. <p></p> Radiation reaction is also interesting to physicists studying effects beyond ‘classical’ physics, as the equations (known as Maxwell’s equations) that traditionally define the forces acting on objects fall short in these extreme environments. <p></p> Now, a team of researchers led by Imperial College London have demonstrated radiation reaction in the lab for the first time. <a href="https://journals.aps.org/prx/abstract/10.1103/PhysRevX.8.011020">Their results are published 7 February in the journal Physical Review X. </a><p></p> They were able to observe this radiation reaction by colliding a laser beam one quadrillion (a billion million) times brighter than light at the surface of the Sun with a high-energy beam of electrons. The experiment, which required extreme precision and exquisite timing, was achieved using the Gemini laser at the Science and Technology Facilities Council’s Central Laser Facility in the UK. <p></p> Photons of light that reflect from an object moving close to the speed of light have their energy increased. In the extreme conditions of this experiment, this shifts the reflected light from the visible part of the spectrum all the way up to high energy gamma rays. This effect let the researchers know when they had successfully collided the beams. <p></p> Senior author of the study, Dr Stuart Mangles from the Department of Physics at Imperial, said: “We knew we had been successful in colliding the two beams when we detected very bright high energy gamma-ray radiation.</div> <div>“The real result then came when we compared this detection with the energy in the electron beam after the collision. We found that these successful collisions had a lower than expected electron energy, which is clear evidence of radiation reaction.” <p></p> Study co-author Professor Alec Thomas, from Lancaster University and the University of Michigan, added: &quot;One thing I always find so fascinating about this is that the electrons are stopped as effectively by this sheet of light, a fraction of a hair's breadth thick, as by something like a millimetre of lead. That is extraordinary.&quot; <p></p> The data from the experiment also agrees better with a theoretical model based on the principles of quantum electrodynamics, rather than Maxwell’s equations, potentially providing some of the first evidence of previously untested quantum models. <p></p> <span><img src="/SiteCollectionImages/Institutioner/F/350x305/MattiasMarklund350x305.jpg" class="chalmersPosition-FloatRight" height="230" width="264" alt="" style="margin:5px" /></span>Study co-author Professor Mattias Marklund of Chalmers University of Technology, Sweden, whose group were involved in the study, said: “Testing our theoretical predictions is of central importance for us at Chalmers, especially in new regimes where there is much to learn. Paired with theory, these experiments are a foundation for high-intensity laser research in the quantum domain.” <p></p> However more experiments at even higher intensity or with even higher energy electron beams will be needed to confirm if this is true. The team will be carrying out these experiments in the coming year. <p></p> The team were able to make the light so intense in the current experiment by focussing it to a very small spot (just a few micrometres - millionths of a metre - across) and delivering all the energy in a very short duration (just 40 femtoseconds long: 40 quadrillionths of a second). <p></p> To make the electron beam small enough to interact with the focussed laser, the team used a technique called ‘laser wakefield acceleration’. <p></p> The laser wakefield technique fires another intense laser pulse into a gas. The laser turns the gas into a plasma and drives a wave, called the wakefield, behind it as it travels through the plasma.  Electrons in the plasma can surf on this wake and reach very high energies in a very short distance. <br /><br /><p></p> <span><a href="https://journals.aps.org/prx/abstract/10.1103/PhysRevX.8.011020"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /></a></span>Read the scientific article<a href="https://journals.aps.org/prx/abstract/10.1103/PhysRevX.8.011020"> ‘Experimental evidence of radiation reaction in the collision of a high-intensity laser pulse with a laser-wakefield accelerated electron beam’</a> in Physical Review X.<br /> <span style="display:inline-block"></span> <p></p> The  research at Chalmers University of  Technology has been funded by the Knut och Alice Wallenberg Foundation and the Swedish Research Council. <p></p> <h5 class="chalmersElement-H5">For more information, please contact:</h5> <a href="/sv/personal/redigera/Sidor/Mattias-Marklund.aspx"></a><span><div><span><span><a href="http://chalmers.se/en/Staff/Pages/Mattias-Marklund.aspx">Mattias Marklund</a><br />Professor, D</span></span>epartment of Physics, Chalmers University of Technology, Sweden</div></span> <div>email: <a href="mailto:mattias.marklund@chalmers.se">mattias.marklund@chalmers.se</a></div> <div>Tel:  +46 31 772 39 39<br /></div> </div> Wed, 07 Feb 2018 17:00:00 +0100https://www.chalmers.se/en/departments/tme/news/Pages/Social-innovation-project-gives-people-affected-by-cancer-strength-to-live.aspxhttps://www.chalmers.se/en/departments/tme/news/Pages/Social-innovation-project-gives-people-affected-by-cancer-strength-to-live.aspxSweden&#39;s first support centre for people affected by cancer<p><b>​Strength to live and better psychosocial support. This is the goal for Kraftens Hus, Sweden’s first support centre for cancer patients and their families. Centre For Healthcare Improvement at Chalmers is an important part of this unique collaborative project.</b></p><div>​“You have cancer.”</div> <div>These three words change a person’s life, but also the lives of many around them. On receiving such a diagnosis, the patient, their family, relatives, friends, neighbours, colleagues and managers all have questions. The healthcare system takes care of the medical treatment, but who looks after everything else?</div> <div> </div> <div>“Cancer changes many aspects of life for everyone affected by the disease – at home with the family, at work and in other social contexts. We have therefore taken a new approach to how various resources and responsible authorities can join forces and develop the psychosocial support together,” says project manager Carina Mannefred from Regionalt Cancercentrum Väst (RCC Väst), the regional cancer centre in west Sweden.</div> <div> </div> <div>The pilot project is the result of unique collaboration involving patients, their families, RCC Väst, researchers from Chalmers, politicians and civil servants from Region Västra Götaland and representatives from a range of social welfare institutions and the business community in Borås.</div> <div> </div> <div>The initiative comes from people affected by cancer via RCC Väst’s Patient- och Närståenderåd, a regional council of cancer patients and their families who share their experiences and opinions of healthcare. Over 18 months the collaboration partners have met in design workshops and dialogue sessions to bring needs, requests and solutions to light. Study visits to support centres in the UK and Denmark have also been made.</div> <div> </div> <div>“The project is unique thanks to its co-creative approach: it is the result of collaboration between all relevant players in society together with the business community and the patients,” says Senior Lecturer Andreas Hellström at Centre For Healthcare Improvement at Chalmers University of Technology, who is leading the scientific part of the project regarding Kraftens Hus Sjuhärad. </div> <div> </div> <div>The non-profit organisation Kraftens Hus Sjuhärad was founded after the series of workshops. The premises are in Borås, but the support centre is for people affected by cancer throughout the whole of Sjuhärad: patients who are undergoing or have completed treatment and their families.</div> <div> </div> <div>Kraftens Hus is being partly funded through an annual grant from the Healthcare Board in Region Västra Götaland for three years and partly through sponsorship. This is a user-driven activity, which will be designed and developed on the basis of the visitors’ needs and requests.</div> <div> </div> <div>The opportunity to meet others in the same situation is key, but the centre also aims to a hub for information and activities by important welfare entities such as healthcare providers, the Swedish Social Insurance Agency and the Swedish Employment Service.</div> <div> <br /><br /><img src="/sv/institutioner/tme/nyheter/PublishingImages/KraftensHusPiaoLeni2_750x300.jpg" alt="" style="margin:5px" /><br /><strong><sub>Project that gives strength.</sub></strong><sub> Pia Bredegård has been declared free of her breast cancer and will work half-time at Kraftens Hus. Leine Persson Johansson lives with chronic lung cancer and is a patient representative on the board. “Ever since the day I entered the hospital I have felt extremely alone with my diagnosis and have asked about possible contact with others affected, perhaps a mentor system. Wow, it feels great to be part of launching such an activity now!” Leine says.</sub><br /><br /></div> <div>The goal is to supplement healthcare and provide emotional, social and practical support. Examples of other activities may include painting groups, discussion groups for children, yoga and walking groups, presentations on various themes and advice to managers on how they can support an employee who has cancer. The hope is that over time the model will reach the entire region and the rest of Sweden. </div> <div> </div> <div>“It’s not our intention to take over the healthcare system’s responsibility for cancer rehabilitation, but instead to be a supplement and offer activities that the system doesn’t have. Kraftens Hus will be a meeting place, where both patients and their families can meet other people in similar situations and chat in an informal context,” Carina Mannefred says.</div> <div> </div> <h4 class="chalmersElement-H4">ABOUT KRAFTENS HUS</h4> <div><a href="http://www.chalmers.se/sv/centrum/chi/forskning/Sidor/Kraftens-Hus-%E2%80%93-fr%C3%A5n-kraft-att-%C3%B6verleva-till-kraft-att-leva-.aspx">More information (in Swedish) about Chalmer’s part of Kraftens hus &gt;&gt; </a><br /><br />Read more (in Swedish) at<a href="http://www.kraftenshus.se/"> www.kraftenshus.se.</a><br /><a href="http://www.kraftenshus.se/"></a><br />Kraftens Hus will be officially opened on <strong>Wednesday 7 February, 2018</strong>. <br />Address: Träffpunkt Simonsland, floor 6, at Viskastrandsgatan 5 in Borås.<br /><br />Contact: Andreas Hellström, Chalmers, phone: +46 76 119 1423, <br />email: <a href="mailto:andreas.hellstrom@chalmers.se">andreas.hellstrom@chalmers.se</a><br /></div>Wed, 07 Feb 2018 00:00:00 +0100https://www.chalmers.se/en/news/Pages/CHARM-2018.aspxhttps://www.chalmers.se/en/news/Pages/CHARM-2018.aspxCHARM is a fair fair<p><b>​Since last fall, when Chalmers and the Chalmers Student Union gathered testimonials about sexual harassments and unsafety at campus, the university and the union is working actively to stop this. When CHARM 2018 (Chalmers Student Union’s career fair) is beginning, it’s taking place as a “fair fair”.</b></p><p>​At the Student Union Building at Chalmers campus Johanneberg, as well as part of the SB building, there are red carpets signal that CHARM is under way. After the opening ceremony the fair is filled rapidly, as loads of Chalmers students wants to get in contact with companies about thesis work, summer jobs or other. But after the big metoo movement last fall, there is a new focus for the fair crew. The Chalmers Student Union has developed the project “A fair fair” to fight discrimination at the fair. </p> – A “fair fair” is about creating a safe meeting place between students and companies. It’s also about raising awareness of the problems that we have both here at Chalmers, but in the community as well, says Olof Svanberg, project manager of CHARM. <br /> <p>– Gender equality is a top priority for Chalmers University of Technology. Here, at our university of course, but also in preparing our student to contribute to equal working places when they have left Chalmers as graduates, in their future careers, says University president Stefan Bengtsson. <br /></p> <p>For example, all exhibitors have agreed to the Student Union Equality Policy against sexism in order to have a stand at the fair. CHARM is open 6th–7th of February 2018. <br /><br />&gt;&gt; <a href="https://youtu.be/LYM_4oGFLQ8">See the video</a><br />&gt;&gt; <a href="http://charm.chalmers.se/student/om-charm-2/a-fair-fair">Read more about the ”Fair fair” concept</a> </p> <p><br /><strong>Text and photo:</strong> Sofia Larsson-Stern<br /><strong>Video:</strong> Johan Bodell</p>Tue, 06 Feb 2018 16:00:00 +0100