Achieving High Reliability and Efficiency in Maintaining Large-scale Storage Systems Through Optimal Resource Provisioning and Data Placement (Computer Project)


With the explosive increase in the amount of data being generated by various applications,   large-scale distributed and parallel storage systems have become common data storage solutions  and been widely deployed and utilized Continue reading

A Multi-rate Multi-channel Multicast Algorithm in Wireless Mesh Networks (Computer Project)


Devices in wireless mesh networks can operate on multiple channels and automatically adjust their transmission  rates for the occupied channels. This paper shows how to improve performance guaranteed multi casting transmission coverage for wireless multi-hop mesh networks by exploring the Continue reading

Multi-vehicles Formation Control Exploring a Scalar Field (Electronics Project)


We present a multi-vehicles system capable to climb a scalar field. The vehicle are capable to move in formation, climbing the intensity of a random positioned light source, and either detect multiple light sources, breaking formation Continue reading

IOT based Automatic Waste Management System (Computer Project)


One of the main concerns with our environment has been solid waste management which in addition to disturbing the balance of the environment also has adverse effects on the health of the  society. The  detection, monitoring and management Continue reading

Portfolio Model Supporting Development of Purchasing Strategies a Case Study Concerning Raw Materials at Casco Adhesives (Management Project)

Casco Adhesives develop, produce, market and distribute adhesives and adhesive equipment with the mission to increase the competitive strength of their customers by offering products at the leading edge of technology and with environmental awareness.

To fulfil this mission high demand is set on every function of the company, not at least the purchasing function. It is important that the function is involved at an early stage since the purchased material for an adhesive represents a grand part of its final value and a lot can be gained from considering alternative materials early on etc.

Naturally different strategies are appropriate for different purchases, to know what strategy that is most suitable can however be hard. Therefore a portfolio model was created in this thesis for supporting development of purchasing strategies for raw material.

The portfolio model was created in two steps that had to be performed in a sequential order. First a classification tool was formed where the purchased raw materials could be positioned into a purchasing portfolio matrix. The two dimensions of the matrix described the importance of purchase and supply risk. To further adapt the tool four steps were worked through. To begin with factors describing each dimension were selected through investigation and analysis.

The classification tool was supposed to consider aspects affecting a purchase and investigated further were thus the purchasing function, R&D and some parts of production. Thereafter answers to the factors were sorted out and given rates, relative weights and the critical borders were settled. The classification tool could finally be brought together and used to depict raw materials into the four quadrants; strategic, bottleneck, leverage and non-critical items of the matrix.

The classification tool could not be too complicated to use why all aspects affecting a purchase was impossible to cover in this step. Therefore a second step was to design a strategy template containing further information needed for developing a suitable strategy. The template enhanced questions concerning the raw material, the supplier market, the actual purchase etc. However depending on which quadrant the raw material was classified in different information was requested.

Hence a lot of inspiration to what topics to include in the template had to come from the main task of each quadrant. Nevertheless information also came from the classification tool, portfolio literature and Casco Adhesives’ line of business. Finally the two steps were brought together into a complete portfolio and the result was achieved; a portfolio model supporting development of purchasing strategies for raw materials at Casco Adhesives.
Source: Linköping University
Authors: Roos, Malin | Rydman, Linda

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Dynamic Positioning of a Semi-submersible, Multi-turbine Wind Power Platform (Mechanical/Electrical Project)

As a growing market for offshore wind power has created a niche for deep-water installations, offshore floating wind solutions have become Continue reading

Automated Tests of Computer-based Interlocking Systems: Developing a Test Case Generator (Electronics/Computer Project)

Automated tests have become the most sought after method of testing in today’s market. Automating systems is generally found to Continue reading