Events: Signaler och system, Electrical Engineeringhttp://www.chalmers.se/sv/om-chalmers/kalendariumUpcoming events at Chalmers University of TechnologyTue, 22 Sep 2020 16:24:20 +0200http://www.chalmers.se/sv/om-chalmers/kalendariumhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Masterpresentation-Zhanyu-Tuo.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Masterpresentation-Zhanyu-Tuo.aspxZhanyu Tuo, MPSYS<p>Web seminar</p><p>​ Object detection and localization with multi-agent sensor fusion</p><div>​</div> <div><a href="https://chalmers.zoom.us/j/62597196979">Join the seminar via Zoom.</a></div> <div>Password: 983755</div> <div><br /></div> <div>Examiner: Fredrik Kahl, Dept of Electrical Engineering</div> <div>Supervisors: Carl Toft, Dept of Electrical Engineering, Tobias Johansson, Dept of Computer Science and Engineering</div> <div><br /></div> <h2 class="chalmersElement-H2">Abstract</h2> <div><br /></div> <div>The development of AD &amp; ADAS has seen rapid progress recently. With the evolution of hardware such as GPUs and sensors, as well as a massive increase in the number of datasets and increasingly powerful algorithms, more and more research projects focusing on AD &amp; ADAS are carried out. In this project, we explore the feasibility of multi-agent sensor fusion for object detection and localization, especially for detection of objects that are occluded in Lidar point clouds, and some prediction results are achieved. In terms of safe driving, it is important to obtain an exhaustive perception of all objects around the ego vehicle. Sometimes surrounding objects to be detected are occluded when all the sensors are installed on an ego vehicle. To detect and localize surrounding objects, especially for those occluded in the Lidar view, Lidar sensor data and aerial photography from a drone are fused off-line. A CNN focusing on instance segmentation is trained using transfer learning along with image augmentation. An image-based 3D reconstruction map is created and matched with a corresponding Lidar SLAM map. Finally, Lidar point clouds are projected onto the corresponding images, and predicted masks from the CNN are used to detect and localize objects in the Lidar point clouds. The method is evaluated on static and dynamic scenarios separately, and objects can be detected and localized based on fused sensors regardless of the occlusion in the Lidar point clouds.<br /></div>https://www.chalmers.se/en/departments/e2/calendar/Pages/Masterpresentation-Gammanage-Xu.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Masterpresentation-Gammanage-Xu.aspxNipun Gammanage and Fangxe Xu, MPSYS<p>Web seminar</p><p>​ Applied computer vision-based navigation method for utility vehicles in urban environments</p><div>​</div> <div><a href="https://chalmers.zoom.us/j/64084211077">Join the seminar via Zoom</a></div> <div>Password: 214506</div> <div><br /></div> <div>Examiner: Martin Fabian, Dept of Electrical Engineering</div> <div><br /></div> <h2 class="chalmersElement-H2">Abstract</h2> <div><br /></div> <div>Autonomous vehicle technology has grown and developed rapidly in recent decades. One of the challenges in autonomous navigation is estimating its current location in terms of an absolute position and a heading direction. A widely used method for vehicular position estimation is GNSS (Global Navigation Satellite System). However, since the accuracy of the GNSS signal depends heavily on the structural behavior of the environment and the weather conditions, new research has open in looking for alternative methods to support GNSS based navigation.  <br /><br />The goal of this thesis was to implement and evaluate the feasibility of using a computer vision-based navigation method as a substitute for GNSS-based navigation. The current position and the direction of the vehicle were estimated, using a state-of-the-art visual SLAM method called OpenVSALM using stereo vision. Furthermore, the system was evaluated against the standard KITTI odometry dataset, and with a real scene captured with an on-board stereo camera rig. Feature extraction and tracking are the key features in any visual SLAM method, hence a comprehensive study was also conducted to evaluate the quality of feature detection and tracking, based on the field of view (FoV) of the camera. <br /><br />Results show that the FoV reduction exponentially increases the error in pose estimation (relative translation and rotation). Results were evaluated using the Absolute Trajectory Error (ATE) and the current system with an FoV of just 23 degrees (which is an FoV reduction of 80% compared to the standard KITTI Odometry dataset) shows a mean ATE of 6.8m for a 30m by 30m area.<br /></div>https://www.chalmers.se/en/departments/e2/calendar/Pages/Licentiate-seminar-Yuvaraj-Selvaraj.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Licentiate-seminar-Yuvaraj-Selvaraj.aspxYuvaraj Selvaraj, Electrical Engineering<p>https://chalmers.zoom.us/j/66091230855</p><p>Title of thesis:  On Provably Correct Decision-Making for Automated Driving</p><a href="https://chalmers.zoom.us/j/66091230855">Join the seminar from PC, Mac, Linux, iOS or Android via Zoom​</a><br /><div>E-mail PhdAdm.e2@chalmers.se in advance to get the password<br /><br /></div> <div><div>The seminar can be accessed through Zoom, and it will open shortly before 10:00. We would kindly ask you to keep the video off and mute the microphone during the seminar. At the end of the session there will be an opportunity to ask questions through Zoom. In case there will be any updates about the event, these will be posted on this website.</div> <div><br /></div> <div><div>Yuvaraj Selvaraj is an industrial PhD student in the Automation research group</div> <div>Discussion leader is Professor Cristina Seceleanu from Mälardalen University</div> <div>Examiner is Professor Martin Fabian from the the Automation research group​</div> <div></div> <h3 class="chalmersElement-H3">Abstract</h3> <div><div>The introduction of driving automation in road vehicles can potentially reduce road traffic crashes and significantly improve road safety. Automation in road vehicles also brings several other benefits such as the possibility to provide independent mobility for people who cannot and/or should not drive. Many different hardware and software components (e.g. sensing, decision-making, actuation, and control) interact to solve the autonomous driving task. Correctness of such automated driving systems is crucial as incorrect behaviour may have catastrophic consequences. </div> <div><br /></div> <div>Autonomous vehicles operate in complex and dynamic environments, which requires decision-making and planning at different levels. The aim of such decision-making components in these systems is to make safe decisions at all times. The challenge of safety verification of these systems is crucial for the commercial deployment of full autonomy in vehicles. Testing for safety is expensive, impractical, and can never guarantee the absence of errors. In contrast, formal methods, which are techniques that use rigorous mathematical models to build hardware and software systems can provide a mathematical proof of the correctness of the system. </div> <div><br /></div> <div>The focus of this thesis is to address some of the challenges in the safety verification of decision-making in automated driving systems. A central question here is how to establish formal verification as an efficient tool for automated driving software development.</div> <div><br /></div> <div>A key finding is the need for an integrated formal approach to prove correctness and to provide a complete safety argument. This thesis provides insights into how three different formal verification approaches, namely supervisory control theory, model checking, and deductive verification differ in their application to automated driving and identifies the challenges associated with each method. It identifies the need for the introduction of more rigour in the requirement refinement process and presents one possible solution by using a formal model-based safety analysis approach.  To address challenges in the manual modelling process, a possible solution by automatically learning formal models directly from code is proposed.<span style="background-color:initial">​</span></div></div> <div><br /></div></div></div>https://www.chalmers.se/en/departments/e2/calendar/Pages/Power-Electronics-Technology-Quo-Vadis.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Power-Electronics-Technology-Quo-Vadis.aspxPower Electronics Technology - Quo Vadis<p>Online in Zoom, ID: 615 2212 6303 (password is required)</p><p>​Welcome to a seminar arranged by the Electromagnetics Laboratory (abbreviated EM-Lab), which is an assembly of senior researchers and teachers with activities in the scientific field of electromagnetics. EM-Lab is hosted by the Department of Electrical Engineering at Chalmers.​  ​</p><div><div><br /></div> <div>Join the lecture via Zoom, meeting ID: 615 2212 6303<br /><span style="background-color:initial">Send an e-mail to Thomas Rylander in advance to get the password, </span><a href="mailto:%20rylander@chalmers.se%E2%80%8B"><span style="background-color:initial">rylander@chalmers.se</span>​</a><br /></div> <div><br /></div> </div> <div><br /><div><div><strong>Speaker:</strong> Professor Frede Blaabjerg, Aalborg University, Denmark </div> <img src="/SiteCollectionImages/Institutioner/E2/Kalendarium/EM%20lab/Frede-Blaabjerg_300x200px.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;height:264px;width:175px" /></div> <div>​<br /> <div><strong>Title:</strong> Power Electronics Technology - Quo Vadis</div> <div><br /></div> <div><div><strong>Abstract: </strong>The world is becoming more and more electrified combined with that the consumption is steadily increasing – at the same time there is a large transition of power generation from fossil fuel to renewable energy based which all together challenges the modern power system but also gives many opportunities. We see also now big steps being taken to electrify the transportation – both better environment as well as higher efficiency are driving factors. One of the most important technologies to move this forward is the power electronics technology which has been emerging for decades and still challenges are seen in the technology and the applications it is used. This presentation will be a little forward looking (Quo Vadis) in some exciting research areas in order further to improve the technology and the systems it is used in. Following main topics will be discussed</div> <div><ul><li>The evolution of power devices</li> <li>Renewable Generation</li> <li>Reliability in power electronics</li> <li>Power Electronic based Power System stability</li></ul></div> <div> <span style="background-color:initial">At last some discussions about other hot topics will be given.</span></div> <div><br /></div> <div><span style="background-color:initial"><strong>About the speaker: </strong><strong></strong></span><span style="background-color:initial">Frede Blaabjerg (S’86–M’88–SM’97–F’03) was with ABB-Scandia, Randers, Denmark, from 1987 to 1988. From 1988 to 1992, he got the PhD degree in Electrical Engineering at Aalborg University in 1995. He became an Assistant Professor in 1992, an Associate Professor in 1996, and a Full Professor of power electronics and drives in 1998. From 2017 he became a Villum Investigator. He is honoris causa at University Politehnica Timisoara (UPT), Romania and Tallinn Technical University (TTU) in Estonia.</span></div> <div>His current research interests include power electronics and its applications such as in wind turbines, PV systems, reliability, harmonics and adjustable speed drives. He has published more than 600 journal papers in the fields of power electronics and its applications. He is the co-author of four monographs and editor of ten books in power electronics and its applications.</div> <div>He has received 32 IEEE Prize Paper Awards, the IEEE PELS Distinguished Service Award in 2009, the EPE-PEMC Council Award in 2010, the IEEE William E. Newell Power Electronics Award 2014, the Villum Kann Rasmussen Research Award 2014, the Global Energy Prize in 2019 and the 2020 IEEE Edison Medal. He was the Editor-in-Chief of the IEEE TRANSACTIONS ON POWER ELECTRONICS from 2006 to 2012. He has been  Distinguished Lecturer for the IEEE Power Electronics Society from 2005 to 2007 and for the IEEE Industry Applications Society from 2010 to 2011 as well as 2017 to 2018. In 2019-2020 he serves a President of IEEE Power Electronics Society. He is Vice-President of the Danish Academy of Technical Sciences too. </div> <div>He is nominated in 2014-2018 by Thomson Reuters to be between the most 250 cited researchers in Engineering in the world. </div></div></div> <div><br /></div> <div><a href="/en/departments/e2/network/em-lab/Pages/default.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about the Electromagnetics Laboratory​​​​​​​​​​​​</a><br /></div> <div><br /></div></div>https://www.chalmers.se/en/departments/e2/calendar/Pages/Elena-Malz-2,-Electrical-Engineering.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Elena-Malz-2,-Electrical-Engineering.aspxElena-Malz, Electrical Engineering<p>online</p><p>​Title: Airborne Wind Energy - to fly or not to fly?​</p><div>​<span class="text-normal page-content"><a href="https://chalmers.zoom.us/j/63352314290">Join from PC, Mac, Linux, iOS or Android</a><br /></span></div> <div><span class="text-normal page-content"><em><br /></em></span></div> <div>E-mail PhdAdm.e2@chalmers.se in advance to get the password<span class="text-normal page-content"><em><br /></em></span></div> <div><span class="text-normal page-content"><em><br /></em></span></div> <div><span class="text-normal page-content"><em>The seminar can be accessed through Zoom, and it will open shortly before 13.00. We would kindly ask you to keep the video off and mute the microphone during the seminar. At the end of the session there will be an opportunity to ask questions through Zoom. In case there will be any updates about the event, these will be posted on this website.​</em></span></div> <div><br /></div> <div>Elena Malz is a PhD student at the Division of Systems and Control<br /></div> <div>Faculty opponent is Associate Professor Roland Schmehl, Delft University of Technology, Netherlands<br />Examiner is Professor Sebastien Gros, NTNU Norway and Chalmers<br /></div> <div><br /></div> https://www.chalmers.se/en/departments/e2/calendar/Pages/Masterpresentation-Todys-Mahmud.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Masterpresentation-Todys-Mahmud.aspxGuilherme Matheus Todys and S M Shadhin Mahmud<p>Web seminar</p><p>​ Thermal characterization of a cylindrical Li-ion battery cell</p><div>​</div> <div><a href="https://chalmers.zoom.us/j/62091608774">Join the seminar via Zoom.</a></div> <div><br /></div> <div>Conducted at Volvo group GTT supervised by Jens Groot</div> <div><br /></div> <div>Examiner: Torbjörn Thiringer, Dept of Electrical Engineering</div> <div>Opponent: Shrisha Balkur</div> <div><br /></div> <h2 class="chalmersElement-H2">Abstract</h2> <div><br /></div> <div>The operating temperature of Li ion batteries is one of the main aspects to consider when analysing the battery’s performance, especially when it comes to cylindrical Li ion cells. The battery’s internal temperature interferes in important characteristics of the battery, such as lifetime and overall performance.  In order to avoid any issues related to the thermal behavior of the batteries, efficient thermal management systems are required. Therefore, the thermal characterization of Li ion cells is necessary to provide the thermal parameters needed for further battery’s thermal studies, and the development of adequate thermal management systems. This thesis work presents a thermal characterization of a Tesla cylindrical Li ion cell, describing methods for the measurement of the specific heat capacity, axial thermal conductivity and radial thermal conductivity. <br />All the experiments were implemented utilizing a custom-made Isothermal Heat Conduction Calorimeter (IHCC). The calorimeter was originally designed to work with prismatic and pouch cells. Therefore, all the process related to the design modifications, in order to adapt the calorimeter to work with cylindrical cells, is also described in this thesis. The methods developed were validated utilizing a Polyoxymethylene (POM) sample with the same dimensions of 21700 cylindrical cell. <br />Finally, the cell’s measurements were successful, providing very good results in terms of precision, proving the important contribution that this work represents regarding the thermal characterization of cylindrical Li ion cells.  <br /></div>https://www.chalmers.se/en/centres/chair/events/Pages/Project-opportunities-with-AI-Sweden.aspxhttps://www.chalmers.se/en/centres/chair/events/Pages/Project-opportunities-with-AI-Sweden.aspxProject opportunities with AI Sweden<p>Online, Zoom</p><p>​​​Welcome to a project ideas meeting! Here we want to identify opportunities for new projects and help AI Sweden to drive the AI agenda.</p><div><br /></div> AI Sweden serves as a platform for AI research and innovation activities in Sweden (read more about AI Sweden at <a href="https://www.ai.se/en" target="_blank">ai.se</a>). <div><br /></div> <div> Welcome to learn more about collaboration opportunities in AI projects and how to finance them! The goal is to find at least three concrete project ideas to start finding partners and funding for. You do not need to have a project idea ready for the workshop - we want you to build on your experience, have an open mind and be creative. </div> <div><br /></div> <div> We invite researchers at Chalmers and GU to an online workshop.</div> <h3 class="chalmersElement-H3"><a href="https://sv-se.invajo.com/event/aisweden/projectopportunitieswithaisweden" target="_blank">Register and see the agenda at ai.se &gt;​</a></h3>https://www.chalmers.se/en/departments/e2/calendar/Pages/Promotion-lecture-Mebtu-Bihonegn-Beza.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Promotion-lecture-Mebtu-Bihonegn-Beza.aspxPromotion lecture by Mebtu Bihonegn Beza<p>This lecture will be held online via Zoom, see link above</p><p>​Title of talk: Control and modeling for stability studies in power electronics dominated grids</p><p></p> Welcome to a <span>public lecture <span style="display:inline-block">by </span></span>Mebtu Bihonegn Beza in connection with his promotion to the academic title Oavlönad docent. The lecture will be held online.<p></p> <div><a href="https://chalmers.zoom.us/j/61006843184" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Join the lecture via this Zoom link</a></div> <h2 class="chalmersElement-H2"><img src="/SiteCollectionImages/Institutioner/EoM/Nyheter/Beza.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" />Abstract of talk</h2> Mebtu BezaRenewable energy sources will play a significant role as utilities and power providers prefer a cleaner and more sustainable sources of energy. In line with this trend, the capacity of renewable generation such as wind and solar installations will continue to increase worldwide. At the heart of this trend is the use of power electronics to interface the energy sources to the power grid at transmission level. This brings both opportunities and challenges to the everchanging power system dominated by power-electronic components. The aim of this lecture is to highlight some of challenges in a power-electronic dominated grids and discuss current trends in modeling approaches to address the phenomena, with a special focus on stability studies ranging from about one to hundreds of Hertz. https://www.chalmers.se/en/departments/e2/calendar/Pages/Erik-Stenborg,-Elektroteknik.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Erik-Stenborg,-Elektroteknik.aspxErik Stenborg, Electrical Engineering<p>online via Zoom, join via the Zoom link above</p><p>​Title of thesis: Long-Term Localization for Self-Driving Cars</p><p></p> <a href="https://chalmers.zoom.us/j/61015234057">​Join the seminar from PC, Mac, Linux, iOS or Android, via zoom</a><p></p> <p><em>The seminar can be accessed through Zoom, and it will open shortly before 14.00. We would kindly ask you to keep the video off and mute the microphone during the seminar. At the end of the session there will be an opportunity to ask questions through Zoom. In case there will be any updates about the event, these will be posted on this website.</em></p> <p>Erik Stenborg is a PhD student in the Signal Processing research group, Division of Signal processing and Biomedical Engineering</p> <p>Faculty Opponent is Professor Jan-Michael Frahm, University of North Carolina at Chapel Hill, USA<br /></p> <div>Examiner is Professor Lennart Svensson, Division of Signal processing and Biomedical Engineering<p></p> <h2 class="chalmersElement-H2">Abstract of thesis </h2> <p>Long-term localization is hard due to changing conditions, while relative localization within time sequences is much easier. To achieve long-term localization in a sequential setting, such as, for self-driving cars, relative localization should be used to the fullest extent, whenever possible.</p> <p>This thesis presents solutions and insights both for long-term sequential visual localization, and localization using global navigational satellite systems (GNSS), that push us closer to the goal of accurate and reliable localization for self-driving cars. It addresses the question: How to achieve accurate and robust, yet cost-effective long-term localization for self-driving cars?</p> <p>Starting in this question, the thesis explores how existing sensor suites for advanced driver-assistance systems (ADAS) can be used most efficiently, and how landmarks in maps can be recognized and used for localization even after severe changes in appearance. The findings show that:<br /></p> <ul><li>State-of-the-art ADAS sensors are insufficient to meet the requirements for localization of a self-driving car in less than ideal conditions.</li> <li>GNSS and visual localization are identified as areas to improve.</li> <li>Highly accurate relative localization with no convergence delay is possible by using time relative GNSS observations with a single band receiver, and no base stations.</li> <li>Sequential semantic localization is identified as a promising focus point for further research based on a benchmark study comparing state-of-the-art visual localization methods in challenging autonomous driving scenarios including day-to-night and seasonal changes.</li> <li>A novel sequential semantic localization algorithm improves accuracy while significantly reducing map size compared to traditional methods based on matching of local image features.</li> <li>Improvements for semantic segmentation in challenging conditions can be made efficiently by automatically generating pixel correspondences between images from a multitude of conditions and enforcing a consistency constraint during training.</li> <li>A segmentation algorithm with automatically defined and more fine-grained classes improves localization performance.</li> <li>The performance advantage seen in single image localization for modern local image features, when compared to traditional ones, is all but erased when considering sequential data with odometry, thus, encouraging to focus future research more on sequential localization, rather than pure single image localization.</li></ul></div> https://www.chalmers.se/en/departments/e2/calendar/Pages/Inauguration-lecture-Daniel-Karlsson.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Inauguration-lecture-Daniel-Karlsson.aspxInauguration lecture, Daniel Karlsson<p>Online via Zoom, a limited audience can be present in HB2, Hörsalsvägen 8, Campus Johanneberg</p><p>​​Welcome to a lecture for the position Adjunct Professor at the Department of Electrical Engineering, held by Daniel Karlsson, Senior Principal Engineer at DNV GL.  ​​</p>​<img src="/SiteCollectionImages/Institutioner/E2/Kalendarium/Daniel_Karlsson_117x173px.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" /><br /><span style="background-color:initial">The lecture will be held online, and also f</span><span style="background-color:initial">or a limited audience on site at Chalmers</span><span style="background-color:initial">.</span><div><a href="https://chalmers.zoom.us/j/63815100323" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Join the online lecture via Zoom</a></div> <div>​</div> <div><strong>Title</strong></div> <div>Power System Operation and Control – Recent and Future Focus Areas – A Personal Perspective</div> <div><br /></div> <div><strong>Abstract</strong></div> <div><p class="MsoNormal"><span style="background-color:initial">This inauguration lecture addresses the way forward for power system research and development, based on findings from the mid 80’s to today, from a Swedish and Nordic, as well as an international perspective. The approach is from the system operator, the manufacturer and the consultant point of view, with a focus on protection, control, modelling, operation, and analysis.</span><br /></p> <p class="MsoNormal"><span lang="EN-US">Voltage stability was focused in Sweden after the large disturbance in 1983, and efforts in dynamic load modelling for voltage stability studies, as well as, coordinated tap-changer control in distribution systems, are addressed in the lecture from a utility perspective. Protection against voltage instability was a hot topic within IEEE and Cigré during the 90’s, and some early protection schemes derived during this time will be presented. In the early 00’s, research focus shifted towards power system protection and, based on the newly developed PMU (Phasor Measurement Unit), a variety of protection schemes were derived; to increase the capacity of power transmission system, to increase the reliability or to a combination of both. Blackouts in North America, Italy and Sweden in 2003 enhanced this development. Today thousands of PMUs are being installed all over the world.</span></p> <p class="MsoNormal"><span lang="EN-US">Near future research will be focused on power grid and generation interaction to provide reliable power supply of good quality for the future, and the future will for sure be even more electric than today, which offers possibilities as well as challenges. The lecture will cover the way forward, with respect to research and development, focused on power system aspects of the coming largescale renewable energy integration, characterized by converter connected and intermittent generation, load flexibility, and significantly increased control and communication requirements. Storage, mainly batteries and pumped hydro, will play a crucial role in this energy transition. There are especially two focus areas of specific interest: frequency control and reserves for reduced system inertia conditions, and voltage control and reactive power reserves in extensive cable networks with significant surplus of renewable generation. <i>Grid forming</i> and <i>grid following</i> types of generation will be essential characteristics for the future. The value of control will increase compared to the value of energy, e.g. it will be more attractive to not fully utilize the wind, in order to be able to increase the generation if needed. Power quality will be more focused in the near future. What is the reasons behind the quality requirements, and what is the optimal quality, are issues that will be addressed. The future of power system research will be accomplished in close cooperation with the areas of power electronics, high voltage engineering, measurement systems, communication and automatic control.​</span></p></div> https://www.chalmers.se/en/centres/chair/events/Pages/Ai-Ethics-online-social-effects-of-AI.aspxhttps://www.chalmers.se/en/centres/chair/events/Pages/Ai-Ethics-online-social-effects-of-AI.aspxAi Ethics online: A conversation about (mostly) near-term societal effects of AI<p>Online, Zoom</p><p>​Speakers: ​​Pontus Strimling and Olle Häggström 20 October, 2020</p><div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">Pontus Strimling leads the research theme &quot;New Technologies and the future of humanity&quot; at the Institute for Future Studies, and also serves as assistant manager at the Centre for Cultural Evolution at Stockholm University. He is a methodically broad researcher of social science who investigates how culture changes. Presently he is actively working on how AI will influence society in the coming 15 years and why values and norms change. </span><br /></div> <div><div><br /></div> <div> Olle Häggström is a professor of mathematical statistics at Chalmers, where he also serves as chairman of CHAIR's AI ethics committee. They will discuss a range of topics in the future of AI, with particular focus on Pontus' research on the technology's near-term societal effects. </div> <div><div><span class="text-normal"><span class="text-normal"><h2>About AI ETHICS at Chalmers</h2></span>A  series of seminars highlighting ethical perspectives of artificial intelligence. The series will feature invited speakers and Chalmers researchers with the aim of cultivating an informed discussion on ethical issues. The seminars are organised by the <a href="http://www.chalmers.se/en/centres/chair/research/Pages/AI-Ethics.aspx">AI Ethics Committee</a> , within Chalmers AI Research Centre (CHAIR). </span></div> ​<br /></div></div>https://www.chalmers.se/en/departments/e2/calendar/Pages/Half-way-seminar-Babak-Alikhanzadehalamdari.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/Half-way-seminar-Babak-Alikhanzadehalamdari.aspxBabak Alikhanzadehalamdari, Electrical Engineering<p>https://chalmers.zoom.us/j/64056724237</p><p>Power Electronic Based DC Transformer for Off-shore Wind Energy Installations</p><a href="https://chalmers.zoom.us/j/64056724237">​Join the seminar from PC, Mac, Linux, iOS or Android via Zoom​​</a><div><span></span><span></span>E-mail PhdAdm.e2@chalmers.se in advance to get the password<br /><div><br /><div>The seminar can be accessed through Zoom and will open shortly before 10.00. We would kindly ask you to keep the video off and mute the microphone during the seminar. At the end of the session there will be an opportunity to ask questions through Zoom. In case there will be any updates about the event, these will be posted on this website.<br /><br /></div></div></div> <div><div>Babak Alikhanzadehalamdari is a PhD student in the Electrical machines and power electronics research group</div> <div>Examiner is professor Torbjörn Thiringer​</div></div> <h2 class="chalmersElement-H2">Abstract</h2> <div><div>The collection of power from wind turbines in the form of DC has several advantages over the AC. DC-DC converters are needed to boost-up the voltage from the low-voltage DC level of the turbines to the medium-voltage DC level of the MV grid to realize the DC-collection grid. </div> <div><br /></div> <div>In this project, the design of a DC-DC converter for off-shore wind energy installations is investigated. The dual-active-bridge (DAB) configuration is considered as a suitable candidate for this application. Different inverter topologies are compared against each other to find an appropriate building block for the DAB converter. The comparison has a focus on the capacitive energy storage requirement of the converters as well as the ratings of semiconductor switches. Additionally, the effects of different transformer winding connections on the operation of the converter are studied.  The leakage inductance of the intermediate transformer is considered as one of the design parameters. Analytical relations are derived from linking the leakage inductance requirement to the nominal operation requirements of the converter. Furthermore, the ZVS range of multilevel DAB converter is quantified analytically, as the high switching frequency signifies the ZVS operation for this converter.</div> <div>​<br /></div></div> <div><br /></div> https://www.chalmers.se/en/centres/chair/events/Pages/AI-Ethics-online-Kathryn-Strong-Hansen.aspxhttps://www.chalmers.se/en/centres/chair/events/Pages/AI-Ethics-online-Kathryn-Strong-Hansen.aspxAI Ethics online: What Fiction Can Teach Us About AI Ethics<p>Online, Zoom</p><p>​Speaker: Kathryn Strong Hansen​17 November 2020</p><strong>​​Abstract:</strong>  Kathy Strong Hansen will talk about the ways that fiction serves as a useful springboard to ethical reflection on AI issues by explaining her Tracks course on the same subject. In addition, she will point out some of fiction's other benefits for those in scientific and technical fields. ​<div><br /></div> <div><strong>About the speaker</strong></div> <div><img src="/SiteCollectionImages/Centrum/CHAIR/events/Kathryn_StrongHansen_180px.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px" /><br />Kathryn Strong Hansen is a senior lecturer in language and communication at the Department for Communication and Learning in Science at Chalmers University of Technology. She has a Ph.D. in English literature from the University of Southern California. Her research ranges from pedagogical explorations of the ways that the study of fiction is beneficial in the teaching of science and technology to literary analysis of young adult literature.</div> <div><br /> <div><div> </div></div> <h3 class="chalmersElement-H3">Registration for this seminar will open in November</h3> <div><br /></div></div> ​​​​https://www.chalmers.se/en/centres/wingquist/calendar/Pages/Annual-Seminar-2020.aspxhttps://www.chalmers.se/en/centres/wingquist/calendar/Pages/Annual-Seminar-2020.aspxWingquist Laboratory Annual Seminar 2020<p>Virtual Development Laboratory, laboratory, Chalmers Tvärgata 4C, M-huset</p><p>We celebrate 20 years of excellent research on Digital Product Realization! Save the date! More info will come! 8</p>​​https://www.chalmers.se/en/areas-of-advance/production/calendar/Pages/Production-in-space.aspxhttps://www.chalmers.se/en/areas-of-advance/production/calendar/Pages/Production-in-space.aspxProduction in space<p>RunAn, conference hall, Chalmersplatsen 1, Kårhuset</p><p>Due to the current pandemic, the seminar will be launched May 4th, 2021.</p><div><div><span style="background-color:initial">The new space age is here! We address this year's initiative seminar, to space and production, following in the steps of the 50th anniversary of the moon landing.</span><span style="background-color:initial">​</span><br /></div> <div><span style="background-color:initial"></span><span style="background-color:initial">How to manufacture for space? Why is research in and for space interesting? Can you manufacture products on Mars? And how does Chalmers contribute to space technology and research? These are some of the questions we will focus on within the theme: Production in Space.</span></div> <span style="background-color:initial"></span></div> <div></div> <div><br /></div>https://www.chalmers.se/en/departments/e2/calendar/Pages/International-Conference-on-Phantom-Limb-Pain.aspxhttps://www.chalmers.se/en/departments/e2/calendar/Pages/International-Conference-on-Phantom-Limb-Pain.aspxInternational Conference on Phantom Limb Pain<p>R-huset, Mölndals sjukhus, Mölndal</p><p>​The aim of the 1st International Conference on Phantom Limb Pain (ICPLP) is to bring together world-renowned experts in the study and treatment of the condition, and create a forum for open discussions on competing theories and findings on phantom limb pain.</p>​<div>Phantom Limb Pain (PLP) is a condition prevalent after amputation that has intrigued scientists for over a century. PLP can considerably hinder a person’s quality of life and no universally accepted guidelines exist for its prevention and treatment. </div> <div><br /></div> <div>Read more</div> <div><a href="/en/departments/e2/news/Pages/First-international-conference-on-the-enigma-of-Phantom-Limb-Pain.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />First international conference on the enigma of Phantom Limb Pain ​</a><br /><div><br /></div> <div>ICPLP web site</div></div> <div><a href="http://www.bnl.chalmers.se/wordpress/index.php/icplp-2020/" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />More information and registration to the conference</a></div> <div><br /></div> <div>The conference was originally planned to be held on 2-4 September 2020, but the arrangement has been rescheduled due to the corona pandemic.​<br /></div>