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3960 Uppsatser om Vidsel Test Range - Sida 14 av 264

PSQS ? Power Supply Quality Simulator

Kitron had wishes to be able to test and measure how disturbance affects their vehicle electronic units before they have been verified by SP Technical Research Institute of Sweden in Borås. This work started with the writing of a demand specification together with Kitron for a product PSQS, Power Supply Quality Simulator, which can generate some test pulses according to a standard for electronic units to Volvos vehicles. A design proposal was developed with the help the demand specification and was verified with the help of simulations. All electric schematics was designed with the guide of the design proposal. The pulses realized in the works of this thesis are those which Kitron experienced that they have a need to test in their own premises and which are possible to generate with the means available.

Betydelsen av tidig hantering av nyanlända försökshundar till en försöksdjursavdelning :

AstraZeneca in Mölndal (AZRDM) uses beagles bred at Rååhöjdens kennel in Örkelljunga for their research purposes. The staff wishes to have mentally stable dogs to work with, sine stress can effect the research results. The purpose of this study was to put together the testresults from dogs delivered 2003 and 2004, to see if there is a connection between delivery age and testresult. We have also worked out a method to test if early planned handling of the dogs makes a difference on how the dogs later respond in a testsituation, and tried this method in a pilotstudy. The data that we have based our calculations on is 172 dogs, divided into 108 males and 64 females. We found a significant connection between the age at delivery and the testresult in contactability for female dogs delivered in 2003, where increasing age led to decreasing grades in the test at AZRDM. When looking at the difference in testresults between test number two at the kennel and the test at AZRDM we found a significant connection for female dogs delivered during 2003, ie the difference takes on a more negative value with increasing age at delivery. We found a difference between the two sexes in our calculations.

Testning och parprogrammering : Går det att effektivisera testning med hjälp av parprogrammering?

The purpose of this study was to investigate the possibility of streamlining the test process by utilizing pair programming. During the process, pair programming has been practiced as is defined by the Extreme programming (XP) software development methodology, with the other aspects of XP discarded. The focus of the testing itself has been toward unit testing. The methods applied has been with an experimental approach where 93 cases were attempted to be solved by either single programmers or pair programmers. What has been investigated in these experiments was the time needed to complete a case, how many test attempts were needed to solve the case, and how high a percentage of the cases were solved.

Konferens är inte bara ett möte det är även en upplevelse! : En undersökning av fyra konferensanläggningar i Stockholms län med olika koncept för framgång.

A conference is not only a meeting but an experience as well. The purpose of this study was to analyze and evaluate four conference organizers within the area of Stockholm Sweden, and to identify their range of activities. Studies were made regarding these conference organizers and how they cooperate with other companies to offer a wider aspect of range. The purpose was also to find out how the demand side of the market appears. The demand side of the market could give an implication of how the conference organizers appear from their perspective and how the conference organizers adjust to their demand.

Hur unga flickor i åldrarna 12-19 årpåverkas psykiskt av media, i förhållande till sina kroppar : En litteraturstudie

Inom disciplinen kognitiv ho?rselvetenskap tilla?mpas en integrerad ansats da?r taluppfattning beskrivs ur ba?de ett auditivt bottom-up-perspektiv och ett kognitivt top-down-perspektiv. Studien underso?kte hur taluppfattning varierar med, respektive utan top-down-sto?d och vad de kognitiva fo?rma?gorna uppma?rksamhet, minne och inhiberingsfo?rma?ga hade fo?r inverkan. Taluppfattningsfo?rma?ga utva?rderades med hja?lp av ett Speech-In-Noise-test (SIN-test) som bestod av tre deltest da?r enstaviga ord presenterades i en ofo?rdelaktig miljo? besta?ende av ro?ster som talande i mun pa? varandra.

Mätning av partikelmassa i avgaser från en dieselmotor

This master thesis was a continuation of a previous study in the diesel exhaust characterization, which is part of the academical work embedded in the EMIR-1 project. The main objective of this thesis work was to finish the installation and make the proper modifications of the particulate mass measuring system located in one of the engine test cells at KTH, in order to be able to measure the mass of the particles from the exhaust of diesel engines.This experiment requires a diluted flow sample from the exhaust that should be sent to the device that makes possible the measurement of particle mass, called TEOM. In the first stage of this project, the objective was to study and make the proper modifications in the existing KTH diluter because there were several problems to obtain a constant dilution ratio from it during tests.This modifications were made and it resulted in a great improvement in the maximum inlet and outlet flow that this diluter can handle. Therefore another modification is proposed for controlling the inlet exhaust flow so it will be possible to regulate the dilution ratio and make it constant along a wide range of engine loads and speeds.The second and most important stage was to make particulate mass measurements possible by analyzing the frequency signal from the TEOM device. The idea was to obtain the frequency of oscillation from the tapered element in the TEOM, and therefore with the proper correlations, be able to predict the particulate mass concentration in the exhaust flow from the engine.An electrical problem in the TEOM circuit was detected and corrected, so the signal that carries the frequency from the TEOM can be analyzed properly.

Användande av avskjutningsstatistik i förvaltning : påverkar tidigare jakt CPUE?

In fisheries, there is a long tradition to use catch data when evaluating changes in the stock and effects from harvesting. It is a common practice to use Catch Per Unit Effort (CPUE) as an index of population size, and several studies have investigated the properties of CPUE in relation to population abundance, spatial distribution and efficiency of gear. In research, catch rate on trap-transects is used as an index of abundance for wildlife species but CPUE is rarely applied as a tool in harvest management.In 1993, more than 60 000 km2 of the state managed mountain range in Sweden was opened to the public for small game hunting, under the responsibility of the county administrative boards in Jämtland, Västerbotten and Norrbotten. The total area is now divided into 332 hunting units (median=73 km2) and an internet based system is used to administer licences and reporting bag statistic. Each hunter has to register the results within two weeks after the hunt.

Kvinnors erfarenheter av amningstidens längd i relation till vårdtidens längd : En retrospektiv studie

Syftet med denna studie var att undersöka nyblivna mödrars uppfattning av amningstidens längd och vårdtidens längd relaterat till bakgrundsvariablerna ålder, utbildning och paritet. Datainsamlingen skedde under hösten 2000 och våren 2001. Insamlat material infördes i det statistiska programmet Stat View. Materialet bearbetades därefter i olika statistiska test som t-test, korrelations test och Chi-två test. Resultatet för den exklusiva amningen visar att kvinnor som är högutbildade och omföderskor ammar längre än de lågutbildade och förstföderskor.

Ett nytt växtsortiment - för inglasade miljöer :

A new project has developed at the Swedish University of Agricultural Sciences in Alnarp during the spring of 2006. The garden design students has, during the course Interior Garden Design designed and built an construction with a new range of plants for Swedish conservatories. The plants are mainly from the cool temperate areas, instead of the tropical which often are the most common in public spaces. This means, among other things, that the cost for warming is very low. The working process and the construction carried on as workshops in the conservatory at Trädgårdslaboratoriet in Alnarp. During a few weeks the hole construction is completed.

En psykometrisk utvärdering av det arbetspsykologiska testet Predicting Job Performance

Ett psykologiskt test används främst inom utbildningssammanhang och kliniska sammanhang, men även inom rekrytering, urval och organisationsutveckling. Det finns idag ett flertal personlighets- och begåvningstest som mäter olika aspekter som kan vara relevanta för en organisation. Predicting Job Performance, PJP, som har sin utgångspunkt i femfaktormodellen, är utvecklat av Psykologiförlaget AB och består av två delar som mäter olika dimensioner av personlighet och begåvning. I denna studie har psykometriska beräkningar utförts för att utvärdera instrumentets reliabilitet samt validitet, främst genom test-retest-metoden. Undersökningsdeltagare var 49 psykologistudenter vid Stockholms Universitet.

Sensory studies of an energy dense drink for elderly people

The average length of life is increasing in the western world, hence the older population is growing. A common health problem among the elderly is malnutrition. Malnutrition causes decreased body strength and is associated with an amplified risk of infections, depression, fractures and increased mortality. The health care system is therefore faced with the challenge to prevent malnutrition among the growing population of elderly. This could be done by providing nutritious foods developed to meet the specific needs of elderly. The overall objective of this project was to test a healthy energy dense drink based on oats targeted for the elderly consumers as a strategy to prevent malnutrition among elderly.

Annonseringseffekt av nyemissioner - En fallstudie på Stockholmsbörsen

Vi utför en fallstudie där vi studerar 108 annonseringstillfällen av nyemissioner under åren 1993-2001 på företag listade på Stockholmsbörsen. Vi undersöker om det föreligger någon överavkastning kring annonseringsdagen. Den effekt vi eventuellt observerar används sedan som den beroende variabeln i regressionsmodeller där vi försöker ta fram förklarande variabler. Vi utför kompletterande test såsom t-test och stabilitetstest för att öka reliabiliteten av resultaten..

Foster owner factors influence temperament test results of military dogs and their suitability for service

Military dogs in Sweden spend their first 18 months after weaning with a foster owner that has volunteered to care for its upbringing. The foster owner is advised by a consultant and offered three opportunities to train the dog together with other foster owners. There is a positive correlation between the number of attended training opportunities with the consultant, or other professional dog trainers, and the results of the dog in the temperament test at the end of the 18 months. The test results are in turn positively correlated with the likelihood of the dog to enter service. This thesis aims to investigate why the number of training opportunities is important for the dog?s chance to enter service by identifying foster owner factors that influence the success of the dog and which temperament test items the factors have the strongest impact on.

Utan papperstidningen saknas existentiella förutsättningar för journalistik på webben : En undersökning av lokala tidningars förutsättningar när de möter utmaningarna från internet

AbstractIn the past decades the newspaper industry went through many changes but it has never had a problem of this kind. With the freedom the Internet brings us today and the wide range of information channels, the newspaper is for the first time seriously challenged.When the newspapers began to establish themselves on the internet they thought it was only to copy the content of the newspaper on to their webpage and the advertisers would come along. This move was not planed and had no vision. When the advertisers discovered Internets wide range of advertisement platforms they started to look for other places they could put their ads. This thesis is about the local newspapers ability to address the problem that the internet has created. I based my study on the following issues:Why has internet caused this problem for the newspapers?What are the prerequisites for local newspapers when they face challenges from the internet?How have the advertisers acted after the emergence of this challenge?To answer these questions I did qualitative interviews with different personalities within the newspaper industry, two local newspaper executives and two professors in media economics. In conclusion the result shows that there are different opinions regarding these questions and different views of how to solve them.

Diagnostiska test i Biologi för kartläggning av elevers förkunskaper in i gymnasieskolan

Syfte: Syftet med detta examensarbete är att kartlägga förkunskaperna i områdena fotosyntes, biologisk mångfald, växthusgaser, energi och hållbar utveckling, samt evolution och naturligt urval hos gymnasieelever som läser ämnet Biologi 1 på det naturvetenskapliga programmet på en gymnasieskola i västra Götaland. Syftet är också att utvärdera betydelsen av diagnostiska test för dessa elever och deras lärare. Avsikten är även att presentera möjliga förslag till att utnyttja resultaten av dessa test för att på bästa sätt kunna hjälpa de elever som har svårigheter i eller ligger i riskzonen för att ha svårigheter i dessa kunskapsområden i Biologi. Metod och genomförande: Undersökningen har dels genomförts med en diagnostisk test, dels genom intervjuer av tre lärare på gymnasieskolan. Eleverna har även fått två analysfrågor som berörde deras uppfattningar om användandet av denna test inom ämnet Biologi. Resultat: Resultatet visar att eleverna har bristande förkunskaper inom områdena fotosyntes och betydelse av växthusgaser. Både elever och intervjuade lärare är positivt inställda till diagnostisk test i Biologi.

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