This project has revolved around finding better ways of overseeing vibrations of the gearbox at a wind power station. The gearbox has been a huge problem at the stations located at Gässlingen and the sooner the warning of an incoming breakdown is at hand the more money you can save from preparations. The work has been carried out together with Askalon AB in cooperation with consults from ÅF. Askalon is a company with a department focused on overseeing vibrations and it is in collaboration with that department the work has been carried out. During this work, new positions for the sensors and new methods of gathering and analyzing data have been worked out. This was then implemented at a wind power station to be tried out on site.

Latent heat storage is a way to store thermal energy when a phase change material undergoes a phase change. The advantage of latent heat storage is the capability to store more energy per mass unit than other heat storage methods. The most commonly used phase change in latent heat storage is the transition between solid and liquid. Phase change materials can be divided into organics, inorganics and eutectics.In the Nordic electricity market the price of electricity is set every hour by Nordpool spot, which leads to price fluctuations because of changes in demand. The main goal of this report is to create a latent heat storage system in a single-family home and investigate the possibility to save money by charging the latent heat storage system when the price of electricity is low, and discharge when the price is high.The thermodynamic model consisted of a ?tube-in-tube? heat exchanger with phase change material in the outer tube and water as the heat transfer fluid in the inner tube.

Society has seen a tremendous increase in threats, violence and especially unprovoked violence perpetrated by youths. Violence and more seriously unprovoked violence has become a major problem for many service corporations as it gives them bad image and reputation. Corporate Social Responsibility CSR encourages many companies to engage in social activities as they realize that the company is part of the society and the environment. What affects society may sooner or later affect the corporate. For any business to prosper and create a long-term relationship with its customers, it needs a safe environment both for the customers and staff.Feedback from customers and staff is survival and these two (customer and staff) are the most vital assets any firm could have.

An important process for grid companies in order to reduce power losses in electricity distribution grids is to figure out where and how they appear. This report describes the factors that cause power losses in low voltage distribution grids and methods for how they could be measured and analyzed. Measurement data for consumed and injected energy were collected for twelve low voltage distribution grids owned by Gävle Energi AB in order to analyze the size of the power losses and how the measurement uncertainty affects the collected data. Then models of three of the grids were created in MATLAB in order to analyze the data and the power losses were calculated to be compared to the collected data. Curve fitting were also used as a method in order to analyze the power losses from collected data.The results show that the losses in the studied grids are low.

The objective of this study was to study the agreement between two methods of indirect bloodpressure measurement in dogs and cats and to establish the within-method variation for the methods. The utility and practicality in the clinical setting were also evaluated for the both methods. The techniques evaluated were the oscillometric method and the Doppler ultrasonographic method. Thirtytwo dogs and 26 cats were used in the study and seven dogs and five cats out of these animals had diseases that may effect the bloodpressure. Bloodpressure was measured in both anesthetized and in conscious animals.

Rapid Granulator is one of the world's largest producers of granulators, which is a kind of grinderwho grinds discarded plastics to granules which later can be reused when pressure molding plastics.The company wanted help in developing a new, or alternatively extending their previous,measurement equipment. The old equipment was hard to use, required changes in the code fordifferent measurement scenarios and had a limited array of measuring quantities. Rapid had an ideaof a similar concept only with a greater number of input ports, better range of applicable sensors andan advanced yet easy to use interface. The system is supposed to be placed at Rapid's test departmentwhere it will be used as a tool for finding faults and provide data which can be used for furtherdevelopment of the granulators.The project's members accepted the task and immediately began searching for suitable componentsfor the system. After the search was completed a list of costs, limitations, sensors, I/O's anddevelopment environment was presented to Rapid's staff.

To be able to measure high-surge voltages and transients with short rise times youneed measuring instruments with a high sampling frequency and large Bandwidth.These surges and transients occur primarily at lightning but can also occur at forexample at connecting errors at an electrical switch-gear. This report describes thework with finding two solutions for measuring and log data from these surges andtransients. One temporary solution where a measurement program has beendeveloped. A second solution where different company solutions have been analyzedto decide which fits best. For these measurement solutions two solutions for bringingdown the voltage has been used.

To be able to measure high-surge voltages and transients with short rise times youneed measuring instruments with a high sampling frequency and large Bandwidth.These surges and transients occur primarily at lightning but can also occur at forexample at connecting errors at an electrical switch-gear. This report describes thework with finding two solutions for measuring and log data from these surges andtransients. One temporary solution where a measurement program has beendeveloped. A second solution where different company solutions have been analyzedto decide which fits best. For these measurement solutions two solutions for bringingdown the voltage has been used.

Bilsäkerhet är en viktig fråga i dagens samhälle. Det enklaste sättet att skydda sig vid en bilfärd är genom att använda säkerhetsbälte. En säkerhetsbältesrulle är uppbyggd av flera olika komponenter, en av dessa kallas torque tube som tar energi när kroppen fångas upp av bältet vid en eventuell kollison. Säkerhetsbältet ska skydda passagerarna i bilen i många år och vid olika temperaturer. Torque tuben är i detta fall gjuten i en zinklegering som heter Zamak5 som förändrar sina materialegenskaper i åldrat och kylt tillstånd.

Authors: Maria Bergholtz, Alexander WestessonTutor: Daniel EricssonTitle: Performance Measurement of Creative work ? a culture study at PS CommunicationKeywords: Key Performance Indicators, Organizational Culture, Macro-culture, Subculture,Micro-culture, Art, Business, Creativity, PS CommunicationIn the paper?s introductory chapter, the chosen problem area regarding art and business willbe presented. The paper?s studied empirical case will also be introduced here. This then leadsto the reports chosen research questions:How do the company management and the companies? creative personnel approach differ inthe discussion regarding performance measurement on PS Communication?-What causes these differences?What impact does the corporate culture have in the discussion about performancemeasurement of PS Communication?-Is the corporate culture weak or strong?The purpose of this paper is to resolve the stand still in the discussion regarding performancemanagement by creating an understanding of different people active in the organization?sapproach to performance measurement.

To be able to measure high-surge voltages and transients with short rise times youneed measuring instruments with a high sampling frequency and large Bandwidth.These surges and transients occur primarily at lightning but can also occur at forexample at connecting errors at an electrical switch-gear. This report describes thework with finding two solutions for measuring and log data from these surges andtransients. One temporary solution where a measurement program has beendeveloped. A second solution where different company solutions have been analyzedto decide which fits best. For these measurement solutions two solutions for bringingdown the voltage has been used.

There have been, in some rare cases, difficulties with clamping of inserts with U-holesin their tool holder. According to the complaints, the inserts could not be properlyclamped or could fracture when clamped. A study has shown that variations inclamping behaviour are mainly depending by the position of the screw hole in the toolholder and the centering of the screw hole in the insert.The focus of this project has been the centering of screw hole in insert. It has beenshown that the screw holes are not always enough centered in the insert. Theproblem may occur after a certain step in the production, i.e.

Sweden's drinking water quality is considered to be high partly due to a high quality of the raw water and a well developed sewage infrastructure. Despite this, there is water contamination that could be prevented by installation of a sophisticated early warning system. Some of the major players in the production of drinking water have already invested in different types of early warning systems to ensure drinking water of high quality. There are various forms of early warning systems where automatic monitoring of E. Coli is an interesting alternative.

AbstractThis bachelor?s thesis at the Department of Production Engineering at the Royal Institute of Technology in Stockholm deals with the subject of automated metrology. The degree of automation of tasks within production has been a growing trend but the measurement of quality has not followed the same trend. The main thesis follows:What incentives are there to automate the measurement of quality in production?What factors are crucial and why are not all metrology automated?The thesis comes along with a number of sub-queries and delimitations.The working method includes both theoretical and empirical studies.

Sköldkörteln (tyroidea) är ett endokrint organ som påverkar ämnesomsättningen. Tyreoidea stimulerande hormon (TSH) frisätts från hypofysen och stimulerar syntes och frisättning av tyreoideahormonerna trijodtyronin (T3) och tyroxin (T4). Tyreoidea hormonerna har i sin tur en negativ påverkan på frisättningen av TSH. TSH, T3 fritt och T4 fritt analyseras på serum med immunokemiska metoder. Becton Dickinson (BD) har tagit fram ett snabbkoagulerande provrör för analys av serum.