Händelser: Studentarbete, Arkitektur, Bygg- och miljöteknik, Data- och informationsteknik, Energi och miljö, Kemi- och bioteknik, Matematiska vetenskaper, Material- och tillverkningsteknik, Mikroteknologi och nanovetenskap, Produkt- och produktionsutveckling, Rymd- och geovetenskap, Signaler och system, Sjöfart och marin teknik, Teknikens ekonomi och organisation, Fysik, Tillämpad IT, Tillämpad mekanik, Rymd-, geo- och miljövetenskap, Arkitektur och samhällsbyggnadsteknik, Bioteknik, Elektroteknik, Industri och materialvetenskap, Informations- och kommunikationsteknik, Mekanik och maritima vetenskaperhttp://www.chalmers.se/sv/om-chalmers/kalendariumAktuella händelser på Chalmers tekniska högskolaMon, 16 May 2022 19:42:33 +0200http://www.chalmers.se/sv/om-chalmers/kalendariumhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220517.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220517.aspxPresentation av masterarbete<p>MV:F21, Skeppsgränd 3</p><p>​Adnan Deumic och James Meijer: Hierarchical Portfolio Allocation in an Active Management Framework</p>​<br />Handledare:  Holger Rootzen<br />Examinator: Serik Sagitovhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Sravan-Ramachandran,-Kemi-och-kemiteknik.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Sravan-Ramachandran,-Kemi-och-kemiteknik.aspxExjobbspresentation Sravan Ramachandran, Kemi och kemiteknik<p>Kemihuset, Pater Noster, rum 2034</p><p>Modification and Characterisation of Bactericidal Particles.​</p>​<b style="background-color:initial">Abstract</b><span style="background-color:initial">:<br /></span><span style="background-color:initial">Antibiotic resistance has been a global threat from the invention of first antibiotic. Because of this, alternative for antibiotics have been a major area of research. This projects circles around antimicrobial peptides (AMPs) which are an essential part of our innate immune system. AMPs are short peptide chains which targets foreign microbes entering the human body. The main feature of AMPs are that they kill the microbes at very low concentrations without affecting the viability of human cells. This is because of the neutral charge on the outer membrane of mammalian cell which doesn't trigger the electrostatic attraction of AMPs towards the cell. One major drawback of AMPs are that in presence of proteolytic enzyme, they have a very short lifetime due to proteolytic degradation. This has been successfully overcome by covalently attaching the AMPs onto Pluronic F127 surface by the ongoing researches in Amferia AB, which is a company in Sweden who focuses on developing a bactericidal wound patches. The focus of this master thesis was to develop different novel methods to synthesize the Pluronic hydrogel particles which can be modified using the AMPs and used as a wound spray to treat deep wound infections. Three methods were developed to synthesize the hydrogel particles. Spray polymerization, cloud point and the hot water method. After developing the protocol for synthesizing the hydrogel particles using these methods, they were tested with </span><i style="background-color:initial">Staphylococcus epidermidis</i><span style="background-color:initial"> bacterial strain using agar plate modelling. The spray polymerized particles showed the highest activity followed by the hot water particles and cloud point particles failed to kill the bacteria. Other analysis tools like SEM (scanning electron microscopy) and SAXS (Small angle X-ray scattering) were performed to give more insight towards the morphology and order of the particles. By replacing the environment of crosslinking of the sprayed Pluronic gel to obtain spray polymerized particles, 50% loss of hydrogel was able to be brought down to 30%. This happens due to oxygen inhibition and in a crosslinking environment where there is no oxygen, this can be brought even further down.</span><div><span style="background-color:initial"><br /></span></div> <div><p class="MsoNormal">Examiner : Martin Andersson<span style="font-size:10.5pt"></span></p> <p class="MsoNormal">Supervisor : Edvin Blomstrand<span style="font-size:10.5pt"></span></p> <p class="MsoNormal">Opponent : Aditya Venkatesh Ravirajan<span style="font-size:10.5pt"></span></p> <span style="background-color:initial"></span></div> <div><span style="background-color:initial"><br /></span></div>https://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Kristoffer-Axby--.aspxhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Kristoffer-Axby--.aspxKristoffer Axby, Elektroteknik<p>Fredrik Lamm room, Chalmers Electric Power Engineering division</p><p>​Titel: Investigation into losses of Li-ion batteries with different design aspects</p><div><strong>​<br /></strong></div> <div><strong>Welcome to the master thesis presentation </strong></div> <strong>Investigation into losses of Li-ion batteries with different design aspects  </strong><br /><strong>by Kristoffer Axby  </strong><br /><strong>Conducted at division of Electric Power Engineering supervised by Evelina Wikner</strong><br /><strong>  </strong><br /><strong>Opponents: Ludvig Svensson, Johannes Lampela</strong><br /><br /><strong>Abstract </strong><br /><div>The thickness of an electrode for a Li-ion battery heavily impacts the performance of the battery cell, as the energy density and power density of the cell as well as the cell efficiency is dependant on the thickness of the cell. The materials required to assemble the battery cells will aslo differ depending on cell chemistry and electrode chemsitry and thus, the cost of assembling the cell and the greenhouse gas (GHG) emissions will vary as well. </div> <br />This thesis investigates three different cell chemistries, each with five different electrode thicknesses in order to analyse the performance of the cells as well as the financial and environmental aspects of battery design and cell cycling. The cell models are created in COMSOL multiphysics and then exported to MATLAB where the equivalent circuit model parameters are acquired through a Glavanic Intermittent Titration Technique (GITT) test. The parameters, as well as the capacity of each cell is implemented into a SIMULINK model of an electric vehicle. The vehicle model is subject to a drive cycle which sets a power demand as well as an energy demand on the vehicle. Each battery pack is dimensioned from these two demands and as such results regarding energy loss depending on cell chemistry and thickness are acquired and compared. Finally, these results are compared with the GHG emissions created during a battery cycle, the GHG emissions of creating the different battery packs and the cost of creating each pack in order to find the optimal battery design. <br /><br /><span><strong>Welcome! </strong><br /><strong>Kristoffer and Torbjörn </strong><span style="display:inline-block"></span></span><br />https://www.chalmers.se/sv/institutioner/tme/kalendarium/Sidor/Masterarbeten-pa-Teknikens-ekonomi-och-organisation.aspxhttps://www.chalmers.se/sv/institutioner/tme/kalendarium/Sidor/Masterarbeten-pa-Teknikens-ekonomi-och-organisation.aspxMasterarbeten på Teknikens ekonomi och organisation<p>Chalmers Vasa / Online</p><p>​Schema för presentationer av masterarbeten på Teknikens ekonomi och organisation under perioden 20 maj – 15 juni finns tillgängligt på institutionens hemsida. Välkommen!</p>https://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Fredrik-Lorentzon,-Jakob-Bruchhausen.aspxhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Fredrik-Lorentzon,-Jakob-Bruchhausen.aspxFredrik Lorentzon och Jakob Bruchhausen, Elektroteknik<p>E2 Room 5430 Femman, Chalmers</p><p>​Titel: Passenger vessel models for fuel efficient fixed-routes</p>​<br /><strong>Students: Fredrik Lorentzon (MPCAS),  Jakob Bruchhausen (MPCAS)</strong><br /><strong>Industrial supervisors: Joel Odlund; Simon Johansson, Ethan Faghani, Cetasol</strong><br /><div><strong>Supervisor/Examiner: Balazs Kulcsar</strong></div> <div><br /><strong>Abstract</strong><br /></div> Minimizing fuel consumption of marine vessels has environmental, economical, and health related advantages. Today, many vessels lack software to help operators drive efficiently. We present a complete reinforcement learning framework that models the behaviour of a marine vessel and optimizes it with regard to its fuel consumption. The reinforcement learning algorithm consists of an environment and an agent. The environment is built using an LSTM neural network trained on real-life data. The data is analyzed to find relevant features, strongly correlated with fuel consumption, and to remove irrelevant ones. The agent is built using a deep Q-learning architecture. Moreover, a Hidden Markov Model was implemented to infer latent variables. It evaluates states at each time-step and feeds its output to both the environment model and the agent. The LSTM and Hidden Markov models are built on data from the archipelago passenger vessel Burö, operating in the Göteborg archipelago.<br /> <br />The model manages to describe the vessel's behavior relatively well, when evaluated on test data. Implementation of the Hidden Markov Model significantly improves this result. The agent manages to find a good but not optimal policy. In conclusion, the proposed reinforcement learning algorithm is not accurate enough to be implemented into real-life applications. However, we present many important insights to future works, such as the reinforcement learning architecture and the importance of estimating latent variables.<br /><div><br /></div> <div>Welcome!</div> <div>Fredrik Lorentzon and Jakob Bruchhausen<br /></div>https://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Lorenzo-Montalto.aspxhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Lorenzo-Montalto.aspxLorenzo Montalto, Elektroteknik<p>E2 Room 5430 Femman, Chalmers</p><p>​Title: Can we reach the UN Paris Agreement’s climate goals? – a robust model predictive control approach</p><br />​<strong>Student: Lorenzo Montalto (MPSYS)</strong><br /><strong>External supervisor: Michele Taragna (Politecnico di Torino) </strong><br /><div><strong>Supervisor/Examiner: Balazs Kulcsar</strong></div> <div><strong><br />Abstract:</strong><br />Climate change is arguably one of the most critical challenges of our time. For this reason, countries have committed, under the UN Paris Agreement, to limit global warming well below 2°C by 2050. One of the main models cited in the literature whose goal is to predict climate change is the DICE Model, developed by William Nordhaus. An important issue regarding this model arises from the fact that it contains a critical parameter whose estimation can lead to highly varying values and which has a huge impact on the model's outputs: the climate sensitivity. The value of this parameter determines whether or not the above mentioned commitment is feasible or not. </div> <div><br /></div> <div>The goal of this master's thesis work is that of expanding the DICE model in order to add robustness to it with respect to the climate sensitivity, by considering a whole set of values instead of a single one. This robust model, combined with previous results aimed at making said model more realistic, will then be used in a model-based predictive control setting, in order to devise optimal control strategies aimed at reaching the goals stated in the UN Paris Agreement. In order to consider the climate sensitivity in a robust way, we will solve the original optimization problem behind the DICE model in a worst-case scenario, where the worst case comes from an &quot;adversary agent&quot; who tries to maximize the climate sensitivity while we try to keep the atmospheric temperature as low as possible. </div> <div><br /></div> <div>In this study, we will show that the objectives of the UN Paris Agreement are feasible under some conditions but also that reaching said objectives requires a strong and fast abatement effort. The impact that the value of the equilibrium climate sensitivity has on the results will also be analyzed, in order to determine how important it is to add robustness to the model when trying to comply with the UN Paris Agreement's goals.<br /><br /></div> <div><strong>Welcome!</strong></div> <div><strong>Lorenzo Montalto</strong><br /></div> https://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Arvid-Käck,-Oskar-Wångdah,-MPSYS.aspxhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Arvid-K%C3%A4ck,-Oskar-W%C3%A5ngdah,-MPSYS.aspxArvid Käck och Oskar Wångdahl, Elektroteknik<p>E2 Room 5430 Femman, Chalmers</p><p>​Titel: Can a fixed-wing UAV accurately deliver a package over long distances in a sea rescue scenario?</p><div>​</div> <div><strong>Students</strong></div> Arvid Käck, Oskar Wångdahl, MPSYS<br /><br /><strong>Industrial supervisor</strong><br />Fredrik Falkman, Sjöräddningssällskapet<br /><br /><strong>Supervisor/Examiner</strong><br /><div>Balazs Kulcsar</div> <div><br /></div> <strong> </strong><div><strong>Abstract </strong><br />This thesis presents the design and simulated result of a fixed-wing drone, which utilizes a rope model that stabilizes the package at a desired point by circulating the target in a spiral pattern. The thesis presents a mid-fidelity drone model with disturbances generated from wind and rope models. <br /><br />The presented simulations show the effects of a set of different parameters, especially airspeed, the length of the rope and the orbit radius of the package. These simulations run with three different controllers, PID, LQR and a non-linear feedback controller. The result shows an improvement in delivery accuracy over fly-over parachute drop-deliveries used in current applications. The nonlinear controller shows the greatest potential for continued real-world applications due to its potential for scalability to different drones and error rejection capabilities.<br /><br />Welcome!<br /></div>https://www.chalmers.se/sv/institutioner/tme/kalendarium/Sidor/Presentationer-av-kandidatarbeteten-vid-Teknikens-ekonomi-och-organisation.aspxhttps://www.chalmers.se/sv/institutioner/tme/kalendarium/Sidor/Presentationer-av-kandidatarbeteten-vid-Teknikens-ekonomi-och-organisation.aspxPresentationer av kandidatarbeteten vid Teknikens ekonomi och organisation<p>Vasaområdet, building complex, Campus Johanneberg</p><p>Schema för presentationer av kandidatarbeten hittar du här: Presentation 24 maj 2022</p>https://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Amelia-Bowlin-and-Sara-Akbari.aspxhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Amelia-Bowlin-and-Sara-Akbari.aspxAmelia Bowlin och Sara Akbari, Elektroteknik<p>Online</p><p>​Titel: Can you replicate human skin properties using artificial materials for bone conduction testing?</p><strong>​</strong><br /><strong>Students: Amelia Bowlin and Sara Akbari, MPBME</strong><br /><strong>Examiner: Sabine Reinfeldt, E2</strong><br /><strong>Supervisor: Henrik Fyrlund, Cochlear Bone Anchored Solutions AB</strong><br /><strong> </strong><br /><strong>Abstract: </strong><br />Today, new advancements in hearing implants have made the calibration and testing process challenging. Some hearing implants are placed under the skin and others are on top of the skin. A new method for pre-clinical testing is needed which represents both the human skull and human skin properties. This thesis focused on finding an artificial material which replicates the human skin. For the materials to be considered as a replica of the human skin, the material must match or closely resemble the human skin mechanical point impedance and attenuation.<br /> <br />This paper focused on finding a material which matched the human mechanical point impedance and attenuation using the &quot;head simulator&quot; model build by Cochlear as the foundation. The model was a 3D printed skull filled with an artificial brain surrogate, which matches the human skull properties but with a slight shift in frequency. The artificial skin materials were placed on the skull and a softband was wrapped around the skull with the material. The mechanical point impedance was measured via an impedance head, audio analyzer, and actuator connected to the softband. Another head simulator model which was a yellow ball filled with an artificial brain surrogate, was used to measure the attenuation. The attenuation was measured using an actuator and an audio analyzer attached to the softband.<br /> <br />The materials consisted of 30 different types of silicon, rubber, or silicone-rubber. The different materials tested were provided by Cochlear, purchased from a make-up artist, donated by rubber manufactures, and common household items. In the end, after various testing on all the materials, one material, a silicone, matched the human skin mechanical point impedance and attenuation almost perfectly.<br /><div><strong><br /></strong></div> <div><strong>Welcome!</strong></div> <div><span><strong>Amelia Bowlin and Sara Akbari<span style="display:inline-block"></span></strong></span><br /></div> <div></div>https://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Maximilian-Eliasson-och-Benjamin-Blomqvist.aspxhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Maximilian-Eliasson-och-Benjamin-Blomqvist.aspxMaximilian Eliasson och Benjamin Blomqvist, Elektroteknik<p>Lunnerummet, seminar room, Hörsalsvägen 9, EDIT trappa F, G och H</p><p>​Titel: Bone conduction ankle audiometer: A tool for simple screening of superior canal dehiscence syndrome (SCDS)</p>​<br /><strong>Program: Biomedical engineering</strong><br /><strong>Examinator/handledare: Karl-Johan Fredén Jansson</strong><br /><div><strong>Opponenter: Alice Nilsson &amp; Linn Söderholm</strong></div> <div><br /><strong>Abstract:</strong><br />This thesis documents the process of developing and testing a prototype bone conduction stimulator for ankle audiometry using the novel B250 transducer which is developed by the Biomedical signals and systems research group. The device is intended to be used for screening for conductive hyperacusis (heightened sensitivity to internal bodily sounds), a symptom of superior canal dehiscence syndrome (SCDS). SCDS originates from an opening in the temporal bone overlying the superior canal of the vestibular labyrinth and results in symptoms such as vertigo and conductive hyperacusis.</div> <div><br /></div> <div>The project utilises the B250 bone conduction transducer and focuses on the development of a driver circuit and enclosure of a prototype ankle audiometer. Specifically, the device must have a signal stability and usability that is better than, or equal to pre-existing tools. Since the device is intended to be certified as a medical device, care was taken to comply with relevant standards. The device is required to be able to stimulate the patient at five different intensity levels with a pure tone of around 250 Hz where the B250 has its peak in frequency response. A secondary goal was to construct a method to attach the transducer to<br />the patient at a constant force of 10 N.</div> <div><br />The resulting prototype is able to stimulate at 244.7 Hz with low harmonic distortion (below 2%) and within the margin of error for all the desired intensity levels. The circuit and batteries are enclosed within a small portable plastic box. For further improvement and simplification of the ankle audiometry method, a solution to construct a patient attachment is also proposed in the thesis.</div> <div><br /></div> <div><strong>Welcome!</strong></div> <div><strong>Maximilian Eliasson and Benjamin Blomqvist</strong><br /></div>https://www.chalmers.se/sv/institutioner/tme/kalendarium/Sidor/Presentationer-av-examensarbeten-for-Ekonomi-och-produktionsteknik.aspxhttps://www.chalmers.se/sv/institutioner/tme/kalendarium/Sidor/Presentationer-av-examensarbeten-for-Ekonomi-och-produktionsteknik.aspxPresentationer av examensarbeten för Ekonomi och produktionsteknik<p>Chalmers Vasa / Online</p><p>​Schema för presentationer av examensarbeten för programmet Ekonomi och produktionsteknik den 25 maj, 1 juni och 3 juni finns tillgängligt på TMEs hemsida. Välkommen!</p>https://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220525.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220525.aspxPresentation av masterarbete<p>MV:H12, Hörsalsvägen 1</p><p>​Julia Jansson: Level-p-complexity for Boolean Functions</p><p>​<br />Abstract:<br />This thesis concerns characteristics of complexity, specifically level-p-complexity, for various Boolean functions. Boolean functions are functions f from n bits to one bit, and they can describe circuits built from logic gates, voting systems as well as graph properties. An example of a Boolean function is majority, which returns the value that has majority among the input bits. Complexity for a Boolean function f can be seen intuitively as how much information is needed about the input bits until the result of f is certain. Some well-known notions of complexity for Boolean functions are deterministic and randomized complexity but in this thesis we focus on level-p-complexity. Level-p-complexity is defined as the minimum expected cost over algorithms determining the output, where the input bits are i.i.d. distributed with Bernoulli(p) distribution. The level-p-complexity for a Boolean function f, is a function of p, so some interesting properties are explored, such as if it is differentiable, and what the maximum is or if it has more than one maximum.</p> <p>First, we calculate the level-p-complexity for the Boolean functions all and tribes for general parameters. Both are continuous and differentiable, but for the tribes function it was only possible to find the maximum value numerically as the expression was complicated analytically. Next, we compute the level-p-complexity of majority specifically for three and five bits and we move on to iterated three bit majority on two levels. Then we apply Boolean functions to graphs, and we calculate the level-p-complexity for connectivity of graphs for graphs with three or four nodes. Next, we construct Boolean functions with certain interesting properties, such as the level-p-complexity has two maxima.</p> <p>Handledare och examinator: Jeffrey Steif</p> <p>Opponent: Emelie Johansson</p>https://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Eleanor-May-220525.aspxhttps://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Eleanor-May-220525.aspxEleanor May, MPPHS fysik<p>PJ, seminar room, Kemigården 1, Fysik Origo</p><p>​Titel på masterarbete: Bayesian History Matching of Chiral Effective Field Theory in the Two-Nucleon Sector Följ presentationen online Lösenord: 902278</p><strong>​Sammanfattning:</strong><div><div>The accurate calculation of nucleon-nucleon scattering observables from first principles is an ongoing challenge within nuclear physics. Working within the framework of chiral effective field theory provides a method for calculating such observables. This is achieved through the construction of an effective Lagrangian that maintains the symmetries of quantum chromodynamics (QCD). In this thesis, truncation of the Lagrangian is performed using a modified Weinberg power counting, introducing a set of unknown low-energy constants at each order in the chiral expansion.</div> <div><br /></div> <div>Bayesian history matching is used to explore the leading order description of the nucleon-nucleon system. This is achieved through the iterative reduction of the four-dimensional parameter space, taking a Bayes linear approach. The history matching implementation is validated on the nuclear liquid drop model. Several novel methods of sampling are introduced within the implementation with the purpose of capturing correlations between parameters; The generation of ellipsoidal distributed samples is shown to be the most successful. History matching is subsequently applied to the proton-neutron scattering problem. We identify the subset of parameter space containing all low-energy constants that produce model outputs consistent with experimental two-nucleon scattering data, accounting for relevant sources of uncertainty. Non-implausible parameter volumes are obtained across a range of momentum regulator cutoffs. Finally, non-implausible samples are used to predict the deuteron binding energy. Results indicate that the inclusion of this observable within the history match could further constrain the volumes.</div> <div><br /></div> <div>The analysis performed in this thesis was successful in producing sets of non-implausible samples. Such sets can be subsequently used as a starting point for a full Bayesian analysis, with the aim of producing posterior probability distributions. For example, the samples can be used to initialise walkers within the Markov Chain Monte Carlo method.</div></div>https://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/CAD-Electrical-process-for-aerospace-harness.aspxhttps://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/CAD-Electrical-process-for-aerospace-harness.aspxCAD Electrical process for aerospace harness<p>M Delta, conference room, Hörsalsvägen 7A, M-huset</p><p>​Anton Hansson och Julia Land presenterar sitt examensarbete.</p><span style="background-color:initial">Program: Product development</span><div><span style="background-color:initial">Examinator: Lars Lindkvist, IMS</span><br /></div> <div><span style="background-color:initial">Handledare: Miller Rothfuchs (Heart Aerospace)</span><br /></div> <div><span style="background-color:initial">Opponenter: Rasmus Eriksson and Nellie Lexander</span><br /></div>https://www.chalmers.se/sv/institutioner/bio/kalendarium/Sidor/Exjobb-Louise-Stauber-Naslund.aspxhttps://www.chalmers.se/sv/institutioner/bio/kalendarium/Sidor/Exjobb-Louise-Stauber-Naslund.aspxExjobbspresentation: Louise Stauber Näslund, MPBIO<p>Giga, meeting room, Kemigården 1, Fysik &amp; via Zoom</p><p>​Identifying genetic biomarkers predicting response to immunotherapy in non-small cell lung cancer</p><strong>​Examinator</strong>: ​Aleksej Zelesniak<br /><div><strong>Handledare</strong>: Anna Rohlin, Sahlgrenska Universitetssjukhuset</div> <br /><strong>Opponent</strong>: Lucas von Brömsenhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation,-Niclas-Sjöstedt,-Kemi-och-Kemiteknik-.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation,-Niclas-Sj%C3%B6stedt,-Kemi-och-Kemiteknik-.aspxExjobbspresentation, Niclas Sjöstedt, Kemi och Kemiteknik<p>Biblioteket på våning 3 i forskarhus 2, Kemihuset</p><p>​Isolation of cellulose fibres from agricultural waste</p>https://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Discrete-Event-Simulation-using-DELMIA.aspxhttps://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Discrete-Event-Simulation-using-DELMIA.aspxDiscrete Event Simulation using DELMIA<p>M Delta, conference room, Hörsalsvägen 7A, M-huset</p><p>​Joel Nilsson och Gustaf Malmsjö presenterar sitt examens arbete.</p>​<span style="font-size:14px"><span style="background-color:initial">Program: Production Engineering</span></span><div><span style="font-size:14px">Examinator: Anders Skoogh, IMS</span></div> <div><span style="font-size:14px">Handledare: Henrik Kihlman, IMS</span></div> <div><span style="font-size:14px">Opponenter: Oskar Vertetics och Theodor Wingårdh</span></div>https://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Master-thesis-presentation,-Amanda-Ulefors,-Chemistry-and-Chemical-Engineering-.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Master-thesis-presentation,-Amanda-Ulefors,-Chemistry-and-Chemical-Engineering-.aspxMaster thesis presentation, Amanda Ulefors, Chemistry and Chemical Engineering<p>The seminar room at SIKT: Chemistry Buildning, floor 3</p><p>​Production of dissolving pulp from oat husks: Process design with techno-economic and environmetal assessment in a life cycle perspective</p>https://www.chalmers.se/sv/institutioner/ace/kalendarium/Sidor/examensutstallning-2022.aspxhttps://www.chalmers.se/sv/institutioner/ace/kalendarium/Sidor/examensutstallning-2022.aspxArkitektstudenternas examensutställning 2022<p>Ljusgården SB, meeting point, Sven Hultins Gata 6, Samhällsbyggnad I-II</p><p>​Välkommen till 2022 års mastersutställning och öppna seminarier vid Chalmers Arkitekturskola.</p>​Examensutställningen som är den stora finalen på studenternas utbildning visar i år över 115 arbeten och är öppen från 31 maj till 7 juni. Den 31 maj och 1 juni hålls offentliga och öppna seminarier på Ljusgården där studenterna kommer att presentera sina projekt. Examensutställningen invigs med en högtidlig ceremoni med mingel för <span>avgångsstudenter och fakultet <span style="display:inline-block"></span></span>1 juni kl.17.<br />Naima Callenberg är curator för utställningen. Kontakt: <a href="mailto:naima@chalmers.se" title="mail" target="_blank">naima@chalmers.se</a> https://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220530.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220530.aspxPresentation av masterarbete<p>MV:L14, Chalmers tvärgata 3</p><p>​Emelie Lööf: Cluster KL-UCB: Optimism for the Best, Pessimism for the Rest</p>​<br />Examinator: Johan Jonassonhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220531B.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220531B.aspxPresentation av masterarbete<p>Euler, Skeppsgränd 3</p><p>​Alfred Hazard och Filip Persson: Camera Pose Estimation and Multiview 2D to 3D Reconstruction</p>​<br />Abstract: <br />Generating 3D representations of objects is of interest in a wide breadth of industries. These representations are often created by hand through 3D modelling softwares such as CAD-derivatives. This in itself can be a complex process in order to capture desired detail and view dependent highlights. In this project, we investigate how Neural Radiance Fields (NeRF) can be used to extract the structure of an object within a bounded scene. NeRF encodes the structure of a scene in a Multi Layer Perceptron using a positional encoding heuristic. The training input is a 5-tuple consisting of a set of images and corresponding viewing directions of the cameras, and the output is the expected volume density and RGB color.<br />This project is a continuation of a Masters thesis by Isak Ernstig and David Olofsson, which has shown that accurate camera pose estimations are crucial to allow NeRF to render high fidelity views of a scene. In a feature poor environment traditional pose estimation pipelines using feature detection algorithms, such as the commonly used COLMAP estimator, have been shown to yield inadequate estimates. In this project, fiducial markers known as ArUco markers have been used to deduce accurate 2D-3D correspondences through detection and error correction. The detected markers allow for accurate usage of typical Computer Vision methodologies, such as Perspective-N-Point and Bundle Adjustment, allowing qualitative camera poses to be estimated. We conclude that our approach enables training a NeRF which may then subsequently render high fidelity novel views of real life objects. We also show the importance of accurate camera calibration and correct sampling intervals for rays when querying a trained NeRF model from a given viewpoint.<br /><br />Handledare: Erik Sintorn, Isak Ernstig, Ludwig Friborg och Oscar Andersson<br />Examinator: Mats Rudemo<br />Opponenter: Kalle Bjurek och Victor Hagmanhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Elin-Posch,-Kemi-och-kemiteknik.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Elin-Posch,-Kemi-och-kemiteknik.aspxExjobbspresentation Elin Posch, Kemi och kemiteknik<p>Kemihuset, Pater Noster, 2034</p><p>​Biological Evaluation of Antimicrobial Peptides for the Use of Antibacterial Wound Care</p>https://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/josefine-aberg.aspxhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/josefine-aberg.aspxInvestigation of digitization in laser rangefinder receiver<p>MC2 coffee room 6D</p><p>​Josefine Åberg, MPCOM Communication Engineering, presenterar sitt examensarbete med titeln &quot;Investigation of digitization in laser rangefinder receiver&quot;.</p>https://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/FEM-simulation-of-acoustic-radiation-from-electric-drivelines-in-heavy-trucks.aspxhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/FEM-simulation-of-acoustic-radiation-from-electric-drivelines-in-heavy-trucks.aspxFEM simulation of acoustic radiation from electric drivelines in heavy trucks<p>M Beta, conference room, Hörsalsvägen 7A, M-huset</p><p>​Monika Stoyanova presenterar sitt examensarbete med titeln &quot;FEM simulation of acoustic radiation from electric drivelines in heavy trucks&quot;.</p>​<div>Student: Monika Stoyanova</div> <div><br /></div> <div>Handledare: Anders Frid, Martina Andersson och Sven Norberg</div> <div><br /></div> <div>Examinator: Håkan Johansson</div> <div><br /></div> <div>Opponent: Willhelm Sjödin</div>https://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Viktor-Mattsson-and-Sebastian-Ekman.aspxhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Viktor-Mattsson-and-Sebastian-Ekman.aspxViktor Mattsson och Sebastian Ekman, Elektroteknik<p>E2 Room 7430 Landahlsrummet</p><p>​Title: Design of a Feed Network for 1D Beam Scanning Array Antennas</p>​<br /><strong>Name of the masters's programme: MPWPS, Wireless, Photonics and Space Engineering</strong><br /><strong>Examiner: Ashraf Uz Zaman, E2</strong><br /><strong>Supervisor: Lukas Nyström, Satcube AB</strong><br /><div><strong>Opponents: Max Behrens and Teanette Van Der Spuy</strong></div> <div><br /></div> <div><strong>Abstract: </strong><br />The satellite communications industry is evolving rapidly and has seen a lot of re-newed interest as of late, especially with the advent of the Starlink, OneWeb and Telesat constellations. There is thus a considerable need for well designed ground-based terminals to utilize the opportunity provided by the satellites. Many of these satellites are situated in low Earth orbit (LEO) and thus require that terminal antennas have the possibility to track the constantly moving satellites. This can be done fully electrically through beam scanning or fully mechanically through rotors and gears in conjunction with a fixed beam antenna. </div> <div><br />This work covers a compromise between these two options by presenting the design of a feed network for a 1D beam scanning array antenna. The electrical scanning in 1D can be complemented by a rotating mechanical system to cover the other dimension (though this is not covered in this report). The advantages include a quadratic reduction in beamformer chips as well as offering a compact design with fewer bulky mechanical components. The feed network is built using ridge gap waveguide technology, with the exception of a small microstrip line section to connect beamformer chips, to obtain low losses at Ka-band. The feed network utilizes a combination of the corporate feed and series feed to obtain a spatially efficient solution. To create this network, a vertical microstrip to ridge gap waveguide power divider and a vertical ridge gap waveguide power divider has been created, as well as a center fed series slot array antenna. The antenna columns are adequately spaced to avoid grating lobes for the 8 element case in order to have some margin while also allowing the design of a 40 x 8 element prototype suitable for manufacturing. </div> <div><br />The results show that a compact 40 x 32 element linearly polarized antenna with the possibility of 1D beam scanning can be created with low loss using primarily gap waveguide technology. Future improvements include extensions to dual band operation, the addition of circularly polarized antenna element as well as the manufacturing of a prototype for verification.</div> <div><br /></div> <div><strong>Welcome!    </strong></div> <div><strong>Viktor Mattsson and Sebastian Ekman</strong><br /></div>https://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220603B.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220603B.aspxPresentation av masterarbete<p>MV:L14, Chalmers tvärgata 3, och online</p><p>​Max Sonnelid: Advancing demand forecasting for the automotive industry with probabilistic forecasting</p><p>​</p> <p>Arbetet är skrivet inom ramen för mastersprogrammet Data Science &amp; AI.</p>https://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220603.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220603.aspxPresentation av masterarbete<p>MV:L14, Chalmers tvärgata 3</p><p>​Gustav Molander och Jens Nilsson: Unsupervised Learning for Face Anti-Spoofing Models</p>​<br />Examinator: Johan Jonassonhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/axel-andersson.aspxhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/axel-andersson.aspxA categorical order theory of pulse scheduling for gate-based quantum computing<p>Luftbryggan, conference room, Kemivägen 9, MC2-huset</p><p>Axel Andersson, MPENM Engineering Mathematics and Computational Science, presenterar sitt examensarbete med titeln &quot;A categorical order theory of pulse scheduling for gate-based quantum computing</p>​Examinator: Jonas Bylanderhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Martin-Claesson-och-Erik-Norheim.aspxhttps://www.chalmers.se/sv/institutioner/e2/kalendarium/Sidor/Martin-Claesson-och-Erik-Norheim.aspxMartin Claesson och Erik Norheim, Elektroteknik<p>E2 Room 5430 Femman, Chalmers</p><p>​Title: Energy Prediction of Electric Trucks&#39; Auxiliaries</p><br /><div><strong>​Students: Martin Claesson and Erik Norheim Erik (MPSYS)</strong></div> <strong>Industrial supervisors: Victor Olsson, Volvo AB</strong><br /><div><strong>Supervisor/Examiner: Balazs Kulcsar</strong></div> <div><br /></div> <div><strong>Abstract:</strong><br />In today's society a large proportion of transportation is carried out on land by fossil-fueled vehicles while there is an increasing trend towards electrifying vehicles. A fundamental disadvantage of Electric Vehicles (EV) is the limited range. An often overlooked aspect of the energy consumption is the auxiliaries, which especially for trucks can be of a substantial proportion of the total energy consumed. This thesis investigates methods to predict the auxiliary energy of electric trucks' auxiliaries using unprocessed field test data from Volvo Group.<br /> <br />The analysis and prediction was done on preprocessed data to ensure that the results are derived from feasible values of the signals measured. The analysis laid the groundwork of determining the quality of the data and which methods that were applicable on the problem. Results indicate that the energy consumption of auxiliaries are difficult to predict with the inputs available and does not always follow a typical nor expected pattern, despite a significant correlation with the ambient temperature and time. Furthermore, preprocessing proved to be a fundamental process in enabling accurate predictions.<br /> <br />Testing models of different complexity and types, the thesis found significant improvements of the energy prediction compared to algorithms found in relevant research papers when applied on the field test data. Machine Learning (ML) models performed well considering the complexity of the problem, the available signals and large amount of data. eXtreme Gradient Boosting (XGBoost) was found to perform the best but we find that there is still important future work that can improve the prediction of auxiliaries.<br /></div> <div><br /></div> <div><strong>Welcome!</strong><br /><strong>Martin Claesson and Erik Norheim</strong><strong> </strong><br /></div> https://www.chalmers.se/sv/institutioner/see/kalendarium/Sidor/Exjobbspresentation,-Markus-Bredberg.aspxhttps://www.chalmers.se/sv/institutioner/see/kalendarium/Sidor/Exjobbspresentation,-Markus-Bredberg.aspxExjobbspresentation, Markus Bredberg<p>EL41, lecture room, Maskingränd 2, Linsen</p><p>​Gravitationally Lensed, High-Redshift Starburst Galaxies and the CO(3-2) Transition for SPT0125-47 and  SPT2134-50</p>​<div><span style="background-color:initial">Markus Bredberg, student i mastersprogrammet MPPHS, presenterar sitt examensarbete ”Gravitationally Lensed, High-Redshift Starburst Galaxies and the CO(3-2) Transition for SPT0125-47 and  SPT2134-50&quot;, </span><span style="background-color:initial">utfört vid institutionen för rymd-, geo- och miljövetenskap. </span><div><br /></div> <div>Opponent: Sven Lundberg</div> <div>Examinator: Magnus Thomasson</div> <div>Handledare: Kirsten Kraiberg Knudsen</div> <div><br /></div></div>https://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220607.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220607.aspxPresentation av examensarbete<p>Pascal, Hörsalsvägen 1</p><p>​Carl Bodin: TBA</p>​<br />Handledare: Klas Modinhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/thomas-jaeken.aspxhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/thomas-jaeken.aspxTowards fault-tolerant quantum error correction with the surface-GKP code<p></p><p>​Thomas Jaeken, EMNAN Erasmus Mundus Nanoscience and Nanotechnology, presenterar sitt examenarbete med titeln &quot;Towards fault-tolerant quantum error correction with the surface-GKP code&quot;​</p>​Examinator Giulia Ferrinihttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220607B.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220607B.aspxPresentation av examensarbete<p>Pascal, Hörsalsvägen 1</p><p>​Ellen Arnholm och Jonathan Bergendahl: TBA</p>​<br />Handledare: Klas Modinhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-August-Djuphammar,-Kemi-och-kemiteknik.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-August-Djuphammar,-Kemi-och-kemiteknik.aspxExjobbspresentation August Djuphammar, Kemi och kemiteknik<p>Kemihuset, Hållö, 8139</p><p>​Verifying new technique for 3D imaging bio molecules with atom probe tomography using DNA origami</p>https://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Caroline-Ridderstråle,-Kemi-och-kemiteknik.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Caroline-Ridderstr%C3%A5le,-Kemi-och-kemiteknik.aspxExjobbspresentation Caroline Ridderstråle, Kemi och kemiteknik<p>Kemihuset, Hållö, 8139</p><p>​Gold nanorod-functionalised surfaces for bacterial elimination utilizing localised surface plasmon resonance generated heat</p>https://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220608.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220608.aspxPresentation av masterarbete<p>Online</p><p>​Hongyi Zhan och Yizhe Gu: Counting Unique Molecular Identifiers Using PCR-branching Models</p>​<br />Handledare: Serik Sagitov<br />Examinator: Marina Axelson-Fiskhttps://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Sustainable-lignin-modification-by-reactive-melt-processing.aspxhttps://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Sustainable-lignin-modification-by-reactive-melt-processing.aspxSustainable lignin modification by reactive melt processing approaches using bio-sourced reagents<p>Sunnanvinden, meeting room, Hörsalsvägen 5, Gamla M-huset</p><p>Renald George Swamy presenterar sitt examensarbete.</p>​<span style="font-size:14px"><span style="background-color:initial">Program: Materials Engineering Program</span></span><div><span style="font-size:14px">Examinator: Docent Giada Lo Re, IMS</span></div> <div><span style="font-size:14px">Handledare: Giada Lo Re, Angelica Avella - IMS</span></div> <div><span style="font-size:14px">Opponent: Lexxsus Sparks</span></div>https://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Saieesh-Vijayendra-Nayak,-Kemi-och-kemiteknik.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Saieesh-Vijayendra-Nayak,-Kemi-och-kemiteknik.aspxExjobbspresentation Saieesh Vijayendra Nayak, Kemi och kemiteknik<p>Kemihuset, Hållö, 8139</p><p>​Analysis of Protein using Atom Probe Tomography</p>https://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/nuria-alcalde-herraiz.aspxhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/nuria-alcalde-herraiz.aspxProbing zero energy bound states with circuit QED in topological insulator junctions<p>Luftbryggan, conference room, Kemivägen 9, MC2-huset</p><p>Núria Alcalde Herraiz, MPNAT Nanotechnology, presenterar sitt examenarbete med titeln &quot;Probing zero energy bound states with circuit QED in topological insulator junctions</p><b>​Examinat​or:</b> Thilo Bauchhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/Process-for-analysis-of-wind-load-induced-vibrations-of-antennas.aspxhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/Process-for-analysis-of-wind-load-induced-vibrations-of-antennas.aspxProcess for analysis of wind load-induced vibrations of antennas<p>CoG, meeting room, Hörsalsvägen 7A, M-huset</p><p>​Maria Hörnell och Erica Lundberg presenterar sitt examensarbete med titeln &quot;Process for analysis of wind load-induced vibrations of antennas&quot;.</p>​<div>Studenter: Maria Hörnell och Erica Lundberg<br /></div> <div><br /></div> <div>Handledare: Peter Melin och Fredrik Öhrby</div> <div><br /></div> <div>Examinator: Lars Davidson</div> <div><br /></div> <div>Opponent: Anna Johansson</div>https://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/marco-biagi.aspxhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/marco-biagi.aspxLa2−xSrxCuO4 thin films and nanostructures to study ordering phenomena under strain in a stripe-based cuprate superconductor<p>Luftbryggan, conference room, Kemivägen 9, MC2-huset</p><p>​Marco Biagi presenterar sitt examensarbete med titeln &quot;La2−xSrxCuO4 thin films and nanostructures to study ordering phenomena under strain in a stripe-based cuprate superconductor</p>​​Handledare: Alexei Kalaboukhovhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/Evaluation-of-cracked-ammonia-combustion-performance-using-CFD-and-chemical-reactor-network-modeling.aspxhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/Evaluation-of-cracked-ammonia-combustion-performance-using-CFD-and-chemical-reactor-network-modeling.aspxEvaluation of cracked ammonia combustion performance using CFD and chemical reactor network modeling<p>Navier, meeting room, Hörsalsvägen 7A, M-huset</p><p>​Johanna Lindfors presenterar sitt examensarbete med titeln &quot;Evaluation of cracked ammonia combustion performance using CFD and chemical reactor network modeling&quot;.​</p>​<div>Student: Johanna Lindfors<br /></div> <div><br /></div> <div>Handledare: Karl-Johan Nogenmyr</div> <div><br /></div> <div>Examinator: Tomas Grönstedt</div> <div><br /></div> <div>Opponent: Ola Löseth</div>https://www.chalmers.se/sv/institutioner/see/kalendarium/Sidor/Exjobbspresentation-Lilian-Hee.aspxhttps://www.chalmers.se/sv/institutioner/see/kalendarium/Sidor/Exjobbspresentation-Lilian-Hee.aspxExjobbspresentation, Lilian Hee<p>EL42, lecture room, Maskingränd 2, Linsen</p><p>​Geostationary precipitation retrieval over Africa using Quantile Regression Neural Networks​</p><div><br /></div> Lilian Hee​ presenterar sitt examensarbete &quot;Geostationary precipitation retrieval over Africa using Quantile Regression Neural Networks&quot;, utfört vid institutionen för rymd-, geo- och miljövetenskap.<div><div><br /></div> <div><div>Examinator: Patrick Eriksson</div> <div>Handledare: Adrià Amell</div> <div>Opponent: Mathias Örtenberg Toftås</div> <div>​<br /></div> <div></div></div></div>https://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/CFD-study-for-optimized-cooling-performance.aspxhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/CFD-study-for-optimized-cooling-performance.aspxCFD study for optimized cooling performance<p>Navier, meeting room, Hörsalsvägen 7A, M-huset</p><p>​Mohamed Hadi Haidari och Caspian Lago presenterar sitt examensarbete med titeln &quot;CFD study for optimized cooling performance&quot;.</p>​<div>Studenter: Mohamed Hadi Haidari och Caspian Lago</div> <div><br /></div> <div>Examinator: Tomas Grönstedt</div> <div><br /></div> <div>Opponenter: Jason Ebenezer John Jawahar Edwin</div>https://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Recyclability-of-316-L-and-718-IN-for-AM.aspxhttps://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Recyclability-of-316-L-and-718-IN-for-AM.aspxRecyclability of 316 L and 718 IN for AM and its impact on mechanical and material properties<p>Online</p><p>​Asfand Yaseen presenterar sitt examensarbete. Online presentation.</p>​<span style="font-size:14px"><span style="background-color:initial">Program: Production engineering</span></span><div><span style="font-size:14px">Examinator: Eduard Hryha, IMS</span></div> <div><span style="font-size:14px">Handledare: Laura Cordova och Matteo Vanazzi</span></div> <div><br /></div>https://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/andrea-dalessio.aspxhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/andrea-dalessio.aspxTransport measurements on YBa2Cu3O7-δ nanowires to disclose the nematic order in high-Tc superconductors<p>Luftbryggan, conference room, Kemivägen 9, MC2-huset</p><p>​Andrea D&#39;Alessio presenterar sitt examensarbete med titeln &quot;Transport measurements on YBa2Cu3O7-δ nanowires to disclose the nematic order in high-Tc superconductors</p>​Handledare​: Floriana Lombardihttps://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Synthesis-of-TiAl--Al2O3-metal-matrix-composite-powder.aspxhttps://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Synthesis-of-TiAl--Al2O3-metal-matrix-composite-powder.aspxSynthesis of TiAl /Al2O3 metal matrix composite powder for surface coating applications<p>Online</p><p>​Shravan Ranjith presenterar sitt examensarbete. Online presentation.</p>​<span style="background-color:initial">Program: Materials Engineering</span><p class="MsoNormal"><span lang="EN-US">Examinator: Eduard Hryha, IMS</span></p> <p class="MsoNormal"><span lang="EN-US">Handledare: Laura Cordova and Gorgees Adam</span></p>https://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Yanuar-Rizki-Pahlevi-220609.aspxhttps://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Yanuar-Rizki-Pahlevi-220609.aspxYanuar Rizki Pahlevi, MPCAS<p>Nexus 4030, meeting room, Kemigården 1, Fysik Origo</p><p>​Titel på masterarbete: Deep Learning for Optical Tweezers: DeepCalib Implementation for Brownian Motion with Delayed Feedback</p><strong>Sammanfattning:</strong><div><div>Brownian motion with delayed feedback theoretically studied to take control of Brownian particle movement’s direction. One can use optical tweezers to implement delayed feedback. Calibrating optical tweezers with delay implemented is not an easy job. In this study, Deep learning technique using Long Short Term Memory(LSTM) layer as main composition of the model to calibrate the trap stiffness andto measure the delayed feedback employed, using the trapped particle trajectory asan input. We demonstrate that this approach is outperforming variance methods inorder to calibrate stiffness, also outperforming approximation method to measure the delay in harmonic trap case.</div></div> <div><br /></div>https://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Development-of-a-nextgeneration-parking-brake.aspxhttps://www.chalmers.se/sv/institutioner/ims/kalendarium/Sidor/Development-of-a-nextgeneration-parking-brake.aspxDevelopment of a next-generation parking brake for heavy-duty cargo bikes<p>Online</p><p>​Chirag Aloysius Mascarenhas och Yasin Demirci presenterar sitt examensarbete. Online presentation.</p>​​Program: Product Development<div><span style="background-color:initial">Examinator: Massimo Panarotto, IMS</span><span></span></div> <span></span><div><span style="background-color:initial">Handledare: John Johannesson, Product Development- Velove Bikes AB</span><br /></div> <div><span style="background-color:initial">Opponent: Anand Srinivas Rajamani, Student- Msc in product development</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><div><strong>Abstract</strong></div> <div>The thesis presents the design and development of a parking brake system for a heavy-duty cargo bike in collaboration with Velove Bikes AB. Velove bikes AB is a start-up located in Gothenburg, Sweden, which develops and produces Armadillo Cargo bikes. Moreover, the company uses these bikes for last-mile delivery operations to various delivery companies such as Budbee and Airmee with the help of trained riders. </div> <div>During the product development process, Initially, a requirement specification was tabulated to identify the customer's needs. This was followed by functional decomposition to map out various procedures taking place during the parking brake operation. Then, multiple ideas were generated and combined to form various concepts in the concept generation phase. The best concept was then selected based on the methodologies of concept evaluation. The chosen concept was finally prototyped and tested to check the fulfilment of the initial requirements in a simulated and real-world environment. </div> <div>Furthermore, an additional commercial assessment, recommendation and concluding action plan are provided to get the solution closer to realisation and aid potential future work. </div> <div><br /></div></span></div> <div><span style="background-color:initial"><br /></span></div>https://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220610.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220610.aspxPresentation av masterarbete<p>MV:L14, Chalmers tvärgata 3</p><p>​Kubilay Muameleci: Anomaly detection in credit card transaction frauds using Multivariate Generalized Pareto Distribution</p>​<br />Handledare:  Holger Rootzen<br />Examinator: Serik Sagitovhttps://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Hannes-Bergstrom-och-Peter-Halldestam-220610.aspxhttps://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Hannes-Bergstrom-och-Peter-Halldestam-220610.aspxHannes Bergström och Peter Halldestam, MPPHS fysik<p>PJ, seminar room, Kemigården 1, Fysik Origo</p><p>​Titel på masterarbete: Optimization of tokamak disruption scenarios: avoidance of runaway electrons and excessive wall loads Följ presentationen online Lösenord: optimize</p><strong>​Sammanfattning:</strong><div><div>Research in the field of fusion science has been propelled by its potential to alleviate humanity's reliance on fossil fuels. </div> <div>One of today's most promising approaches to generating thermonuclear fusion energy uses magnetic confinement of hydrogen fuel in the plasma state. The tokamak concept, which has achieved the best fusion performance so far, is used in the two devices (ITER and SPARC) currently being constructed -- they aim to achieve a positive energy balance, thereby demonstrating the scientific feasibility of magnetic confinement fusion energy. </div> <div><br /></div> <div>A major open issue threatening the success of these tokamaks is plasma disruption. In these off-normal events the plasma loses most of its thermal energy on a millisecond timescale, exposing the device to excessive mechanical stress and heat loads. In addition, in the high-current devices currently under construction, one of the most important related problems is posed by currents carried by electrons accelerated to relativistic energies, called runaway electrons. If these were to strike the inner wall unmitigated, it may cause potentially irreversible damage to the device. The methods proposed to mitigate these dangerous effects of disruptions, such as massive material injection, are characterized by a large number of parameters, such as when to inject material, in which form and composition. This poses an optimization problem which involves a potentially high dimensional parameter space and a large number of disruption simulations. </div> <div><br /></div> <div>In this work, we have developed an optimization framework which we apply to numerical disruption simulations of plasmas representative of ITER, aiming to find initial conditions for which large runaway beams and excessive wall loads can be avoided. We assess the performance of mitigation when inducing the disruption by massive material injection of neon and deuterium gas. The optimization metric takes into account the maximum runaway current, the transported fraction of the heat loss -- affecting heat loads -- and the temporal evolution of the ohmic plasma current -- determining the forces acting on the device. </div></div>https://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Esmée-Berger-220610.aspxhttps://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Esm%C3%A9e-Berger-220610.aspxEsmée Berger, MPPHS fysik<p>PJ, seminar room, Kemigården 1, Fysik Origo</p><p>​Titel på masterarbete: Runaway dynamics in reactor scale spherical tokamak disruptions Följ presentationen online Lösenord: step</p><strong>Sammanfattning:</strong><br /><span style="background-color:initial"></span><div>One of the most promising concepts to achieve commercial fusion power, to date, is a toroidal magnetic confinement system centered around a tokamak. To aid the development, compact spherical tokamaks have long been proposed as component testing facilities. There is also an effort to design and construct spherical tokamaks suitable for energy production, with an example being the STEP program in the UK. One of the remaining obstacles for all reactor-scale tokamaks is so-called runaway electrons -- electrons accelerated to relativistic speeds. These can be generated during disruptions, which are off-normal events where the confinement of the plasma is rapidly lost. As runaway electrons can severely damage the machine walls, their production and mitigation has been extensively studied for conventional tokamaks. However, due to the disruption dynamics typically being different in spherical tokamaks, the existing results cannot directly be transferred to these more compact devices. Therefore, runaway dynamics in reactor-scale spherical tokamaks is investigated in this work, and we study both the severity of runaway generation during unmitigated disruptions, as well as the effect that typical mitigation schemes based on massive material injection have on runaway production. The study is conducted using the numerical framework DREAM (Disruption and Runaway Electron Avoidance Model) and we find that, in many cases, mitigation strategies are necessary if the runaway current is to be prevented from reaching multi-megaampere levels. Our results indicate that with a suitably chosen deuterium-neon mixture for mitigation, it is possible to achieve a tolerable runaway current and ohmic current evolution. With such parameters, however, the majority of the thermal energy loss happens through radial transport rather than radiation, which poses a risk of unacceptable localized heat loads.</div>https://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/Wear-compensation-systems-for-dry-clutches.aspxhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/Wear-compensation-systems-for-dry-clutches.aspxWear compensation systems for dry clutches<p>Förbränningsrummet, meeting room, Hörsalsvägen 7B, M-huset</p><p>​Patrik Abrahamsson och Sven Bergqvist presenterar sitt examensarbete med titeln &quot;Wear compensation systems for dry clutches&quot;.</p>​<div>Studenter: Patrik Abrahamsson och Sven Bergqvist</div> <div><br /></div> <div>Examinator: Petter Dahlander</div> <div><br /></div> <div>Opponenter: Adil Lokat och William Blixt</div>https://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Jesper-Medin,-Kemi-och-kemiteknik.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Jesper-Medin,-Kemi-och-kemiteknik.aspxExjobbspresentation Jesper Medin, Kemi och kemiteknik<p></p><p>​Artificial Shuttle-Cargo Transport Through Solid State Nanopores</p>​Var: Kemihuset, Forskarhus 1, våning 2, mötesrum; Pater Noster<div>När: 13 juni, kl 13.00​</div>https://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Linnea-Rensmo-220614.aspxhttps://www.chalmers.se/sv/institutioner/fysik/kalendarium/Sidor/Masterpresentation-Linnea-Rensmo-220614.aspxLinnea Rensmo, MPPHS Fysik<p>PJ, seminar room, Kemigården 1, Fysik Origo</p><p>​Titel på masterarbete: Characterization of HDPE using small and wide angle scattering</p><strong>Sammanfattning:</strong><div></div> <div><div>The importance of polymers in materials science can not be underestimated. Polymers are widely used within everything from clothing and  electronics to packages and paint. Tetra Pak uses the polymer high-density polyethylene, or HDPE, for their packaging solutions. The plastic material HDPE has the advantageous properties of being moldable and sturdy. To build understanding of what structures gives rise to these properties it is important to characterize the material. If the structure is known, it is perhaps possible to manufacture a similar material, in the future, that is not made from oil. This work focuses on the characterization of the material. The structures of HDPE are investigated with small and wide angle scattering.</div> <div style="font-weight:bold"><br /></div></div>https://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/mans-jakobsson.aspxhttps://www.chalmers.se/sv/institutioner/mc2/kalendarium/Sidor/mans-jakobsson.aspxWeather Cube Back-ends for 183 & 54 GHz<p>MC2 coffee room 6D</p><p>​Måns Jakobsson och Amritha Rajan, MPWPS Wireless, Photonics and Space Engineering, presenterar sitt examensarbete med titeln &quot;Weather Cube Back-ends for 183 &amp; 54 GHz</p>https://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220615.aspxhttps://www.chalmers.se/sv/institutioner/math/kalendarium/Sidor/Examensarbete220615.aspxPresentation av masterarbete<p>MV:L14, Chalmers tvärgata 3</p><p>​Coltov Cunov: Novel ad text generation for real estate</p>​<br />Examinator: Johan Jonassonhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/Aerodynamic-databank-modeling-for-airplane-development.aspxhttps://www.chalmers.se/sv/institutioner/m2/kalendarium/Sidor/Aerodynamic-databank-modeling-for-airplane-development.aspxAerodynamic databank modeling for airplane development<p>CoG, meeting room, Hörsalsvägen 7A, M-huset</p><p>​Anna Johansson presenterar sitt examensarbete med titeln &quot;Aerodynamic databank modeling for airplane development&quot;.</p>​<div>Student: Anna Johansson</div> <div><br /></div> <div>Handledare: André Gama de Almeida</div> <div><br /></div> <div>Examinator: Lars Davidson</div>