Posts

Showing posts with the label Master Scholarships

Search This Blog

Bachelor or Master Thesis: Miniature scale cooling using shape memory smart materials

  In Germany, refrigeration accounts for 14% of electricity consumption. Cooling on a small scale, as it is required, e.g., in electronic chips, lab-on-chip systems, chemical and biological analysis, is often performed by miniaturization-compatible thermoelectric cooling, which is however rather in-efficient. The search for energy-efficient, ’green’ alternatives has recently lead to increased interest in solid-state cooling based on caloric effects. Among these, the elastocaloric effect in shape memory alloys exhibits particularly high temperature changes and material-level coefficients of performance (COP) exceeding 80% of the thermodynamic maximum. Shape memory alloys belong to the class of smart materials showing heat absorption, heat generation, actuation and sensing. The goal will be to explore the potential of the elastocaloric effect in these materials for small-scale or ’microcooling’ applications, making use of shape memory films. Although this thesis is targeted at miniatu

Bachelor or Master Thesis: Evaluate flow behavior in von Karman vortex street by magnetic resonance velocimetry

  Oscillating vortices are generated when fluid flows past a bluff body and are known as Von Karman vortex street. The bluff body leads to alternating low-pressure areas, which cause periodic crosswind forces. The crosswind forces can be highly undesirable since they cause vibration, but they can be employed to design vortex flow meters. Therefore, it is very beneficial to evaluate flow behavior in Von Karman vortex street in order to address the adverse effects of vibration as well as to improve the performance of vortex flow meters. Furthermore, magnetic resonance velocimetry is one the best methods to obtain a 3-dimensional 3-component velocity map due to three main advantages. First, it is a completely noninvasive method. Second, there is no necessity to have optical access to the sample. Finally, one does not need to add any tracing particle to sample to measure the velocity. Aforementioned reasons led to the idea of evaluating flow behavior in Von Karman vortex street by magne

Bachelor or Master Thesis: Elastocaloric Cooling with Elastomers

  In Germany, 14 percent of electricity consumption is used for refrigeration. This amount is expected to rise steadily in the future. Innovations in this field can therefore make an important contribution to climate and environmental protection. The young research field of elastocalorics has the potential to provide efficient and environmentally friendly cooling power. Elastocaloric cooling is based on the reversible release and absorption of heat when specific materials are subjected to mechanical stress or stress-relieved. So far, most frequently the material class of shape memory alloys (SMA) has been used and investigated for its elastocaloric effect. In addition to shape memory alloys, elastomers such as cross-linked natural rubber also exhibit the elastocaloric effect. The elastocaloric effect in elastomers is of special interest for environmentally friendly and low-cost cooling applications. The focus of this work is on the application of rubber-based films. These have the p

Bachelor or Master Thesis: Shape memory microactuators in silicon technology

  The Institute for Microstructure Technology (IMT) develops micro- and nanoactuators using smart materials. Among the class of smart materials are shape memory alloys (SMAs) which show multifunctional properties including the shape memory effect, thermal and structural effects. This enables the development of novel bi-stable actuators on the micro- and nanometer length scale, which are of special interest for applications in small space, e.g., in micro optics, photonics and micro robotics. The aim of this Bachelor/Master thesis is to develop, fabricate and characterize SMA-based microactuators using cleanroom techniques. Your tasks: CAD and numerical simulations (COMSOL multiphysics) Characterization of SMA material properties (structure, mechanical, thermal) Micro- and nanofabrication of functional devices using clean room technology (electron beam lithography, reactive ion etching). This work will be supported by experienced cleanroom staff. Experimental characterization of actua

Internship, Bachelor- or Masterthesis: App Development for Android

  Within the thesis, the student will build the GUI for Android in Kotlin in cooperation with a second person. The student will start with a given functionality, which includes the communication via universal serial bus (USB). Starting date 1. September 2022 Personal qualification Data Science, Electrical Engineering and Information Technology Contract duration 3 months Contact person in line-management For further information, please contact Lars Eisenblätter, phone +49 721 608-28174, E-Mail:  lars.eisenblaetter@kit.edu. Please apply  online  using the button below for this vacancy number IPE 08-2022. Ausschreibungsnummer: IPE 08-2022 Recognized severely disabled persons will be preferred if they are equally qualified. Contact Personnel Support is provided by: Personalservice (PSE) - Human Resources Ms Carrasco Sanchez Phone: +49 721 608-42016, Kaiserstr. 12, 76131 Karlsruhe     Apply

Internship, Bachelor- or Masterthesis: App Development for Android, use of slow control board, evaluation of driver electronic up to 20 GHz

  Within the thesis, the student will build the GUI for Android in Kotlin in cooperation with a second person. The student will start with a given functionality, which includes the communication via universal serial bus (USB). Once the GUI successfully developed, the student will use the GUI and evaluate the driver electronics in terms of impedance, gain, bit error rate and eye diagram. The results will enable the user to work with system and exploit several different modes such as automatic and manual mode. Starting date 1. September 2022 Personal qualification Data Science, Electrical Engineering and Information Technology Contract duration 6 months Contact person in line-management For further information, please contact Lars Eisenblätter, phone +49 721 608-28174, email:  lars.eisenblaetter@kit.edu . Please apply  online  using the button below for this vacancy number IPE 07-2022. Ausschreibungsnummer: IPE 07-2022 Recognized severely disabled persons will be preferred if they are

Master Thesis: Analysis Digital Health Startup Scene

  The main goal of this master thesis is to investigate the Digital Health Startup Scene - with a focus on Germany. The Startup Scene should be clusterd based on predefined criteria such as indication and business model. Furthermore, potential challenges of the Digital Health Startup Scene in Germany should be worked out and potential solutions derived. Based on this analysis, future research topics are to be outlined. Starting date as soon as possible Personal qualification Highly motivated Interested in Digital Health Structured and precise way of working Contract Duration limited to 6 months Contact person in line-management For further information, please contact Rahel Martjan, e-mail:  rahel.martjan@kit.edu . Please apply  online  using the button below for this vacancy number EnTechon 02-2022. Ausschreibungsnummer: EnTechon 02-2022 Application Please apply by clicking on "Apply" below. Recognized severely disabled persons will be preferred if they are equally qualifi

Master Thesis: Transition of a lifestyle to a digital health startup

  Many startups struggle with the decision of placing themselves as a digital health instead of a lifestyle startup. To better understand and solve this issue, the focus of this master thesis is on three main tasks: Comparing startups which provide lifestyle vs. startups which provide digital health products / services Defining criteria which need to be fulfilled in order to be defined as a digital health startup Creating a framework which would help startups to make the transition from a lifestyle to a digital health product / service provider as smooth as possible Starting date as soon as possible Personal qualification Highly motivated Interested in Digital Health Structured and precise way of working Contract Duration limited to 6 months Contact person in line-management For further information, please contact Rahel Martjan, e-mail:  rahel.martjan@kit.edu . Please apply  online  using the button below for this vacancy number EnTechon 01-2022. Ausschreibungsnummer: EnTechon 01-20

Bachelor or Master Thesis: Feasibility Study „Wearable Ultrasound Detector for Breast Cancer Detection“

  The aim of this work is to propose a first setup for a breast cancer detecting wearable ultrasound detector system (“USCT Bra”) based on the 3D ultrasound Computer Tomography method of KIT. The industrial cooperation partner IcosaMed (CH) is working on the development of a first wearable monitoring device for women’s breasts, in a “smart bra”. This solution will offer a simple monitoring solution for women with genetic breast cancer risk factors or cancer history. These populations represent respectively 0.3% and 3% of all women, or 1.3 million and 13.8 million women in developed countries. The IPE at KIT developed a prototype for 3D ultrasound tomography (3D USCT) aimed at breast cancer diagnosis and carried out a first clinical study. The current prototype under commissioning is aimed at a larger multicenter study. The IPE also developed imaging algorithms and software as well as methods to optimize a given system layout. The current prototypes are stand-alone systems of the siz

Bachelor or Master Thesis: Thermal energy harvesting using a bistable shape memory actuator

  New energy harvesting concepts are currently being developed to convert waste heat into electrical energy. Promising candidates are freely movable film devices of shape memory alloys (SMAs). When brought in contact to a heat source, they generate work due to the shape memory effect, which can be converted into electrical energy. Thus, small temperature differences in the environment can be used to power, e.g., wireless sensor networks for the “Internet of Things“. A sketch of such an energy harvesting device in its two equilibrium positions is shown in the Figure. This interdisciplinary work focuses on energy generation on a miniature scale covering different fields of materials science, mechanical and electronic engineering. The focus of the work can be adjusted to the interests and competences of the applicant in a direct interview. Tasks: Characterization of material properties (structure, mechanical, thermal, magnetic) Modelling, design and simulation (FEM Multiphysics, Lumped

Bachelor or Master Thesis: Thermal microactuation using shape memory smart materials for waste heat recovery

  Among the various transducer materials, shape memory alloys (SMAs) offer a number of unique properties including thermoelasticity, superelasticity, actuation at highest work densities up to 107 Jm-3 and self-sensing. SMA actuators make use of temperature-induced martensitic transformation allowing for high actuation force and stroke length. Their characteristic of being a “smart material” becomes particularly advantageous upon miniaturization, as technology constraints pose severe limitations on the number, geometry and size of functional structures. The goal of the Master Thesis will be to explore the potential of the shape memory effect in a novel out-of-plane actuator design for miniature actuation applications, with emphasis on utilization of low-grade heat as heat source < 200 ℃. Your Tasks: Characterization of SMA material properties (structure, mechanical, thermal) Design development based on lumped element modelling (Matlab/Simulink) Prototype development including fabr