This project deals with thermal energy storage systems (TES), which are devices used to store and re-lease thermal energy with a time delay. In the first part of the study, the state-of-art of the TES systems is discussed, grouping the different technologies on the basis of the energy storing process.
(Mechanical Project) Evaluating new Pilot Stage Concept
This report is a first practical study of micro valves for hydraulics, manufactured by Microstaq Inc. who uses, for hydraulics, new materials and new actuating technologies. The purpose is to evaluate if, in the future, there is any possibility of complementing or exchanging the classical use of electro magnetic solenoids in electro hydraulic applications with this new technology.
The valves studied are of MEMS-type (Micro Electro Mechanical Systems), which are etched out of silicon and has an electro thermic actuation. During the study it showed that this new valve technology had some teething troubles. The valves had proplems managing high pressure drops, both regarding strength of materials and performance. If you let the manufacturers further develop this technology there are great potentials for using this in future hydraulic systems.
Source: Linköping University
Author: Bengtsson, Robert
Source: Linköping University
Author: Bengtsson, Robert
(Management Project) Human Resource Management in Charitable Organizations
In recent years, the nonprofit sector has grown and charitable organizations have become more important. HRM has got a more significant role and it is no longer enough to build an organization on the perception that “doing good is good enough”.
(Computer/Electronics/Mechanical Project) Seam Tracking in a Complex Aerospace Component for Laser Welding
This project is a result of collaboration between the University of Trollhättan/Uddevalla and Volvo Aero Corporation, Trollhättan. An aerospace component, which is used in a process at Volvo Aero Corporation, is casted in one piece. A new way of manufacturing thiscomponent is under investigation.
(Computer Project) Android Map Application
This project deals with thermal energy storage systems (TES), which are devices used to store and re-lease thermal energy with a time delay. In the first part of the study, the state-of-art of the TES systems is discussed, grouping the different technologies on the basis of the energy storing process.
(Electronics Project) Pre-study of new Electrical Coupling between Train Cars
This study is meant to be an initial study of the possibility to replace the discrete control signal wires over the electrical coupler between train cars with a data bus system. The reason for this is that the electrical coupler is large and heavy due to the high amount of contacts it contains.
It is also a problem for manufacturers who are upgrading an existing fleet and need to transfer more signals through a coupler with no spare contacts to use. Except the control signals there are also Ethernet and power signals in the electrical coupler. Some trains also use a bus system for control signals and/or signals containing a large amount of data such as passenger information.
This report gives a presentation of some common ways to distribute electrical signals throughout a train used by most manufacturers. It also presents some design recommendations for a system that would collect existing signals to a bus system and two different design proposals that should be considered if such a system is to be developed.
(Electronics Project) Application of Porous Silicon in Terahertz Technology
In this study, we discuss our efforts in developing porous silicon based devices for terahertz signal processing. In the first stage of our research, we demonstrate that porous silicon samples fabricated from highly doped p-type silicon can have adjustable refractive indices ranging from 1.5-2.1 and can exhibit a resistivity that is four orders of magnitude higher than that of the silicon wafer from which they were made.
(Computer Project)Zoomable User Interfaces for the Authoring and Delivery of Slide Presentations
Millions of slide presentations are being authored and delivered with computer software every day. Yet much of the computer’s power for these tasks remains untapped. Existing interaction techniques leave presenters wrestling with limited size computer displays to get meaningful overviews of their work.
(Mechanical Project) Swarm Intelligence and Stigmergy: Robotic Implementation of Foraging Behavior
Swarm intelligence in multi-robot systems has become an important area of research within collective robotics. Researchers have gained inspiration from biological systems and proposed a variety of industrial, commercial, and military robotics applications.
(Management Project) Decision Making under Uncertainty and Bounded Rationality
In an attempt to capture the complexity of the economic system many economists were led to the formulation of complex nonlinear rational expectations models that in many cases can not be solved analytically. In such cases, numerical methods need to be employed.
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