Sök:

Sökresultat:

4044 Uppsatser om Hypothesis testing and t-test - Sida 18 av 270

Automatisk test för myoelektroder.

Denna rapport avhandlar en tio veckors period på Otto Bock Scandinavia AB i Norrköping. Där analyserades en manuell testutrusning för funktionstest av myoelektroder, för att mäta muskelspänningar. Myoelektroderna används till att styra gripfunktionen hos handproteser, för patienter som förlorat en del av sin arm. Analysen ska resultera i att ge ett förslag på en automatiserad test av elektroderna. En stor del av rapporten består av studier kring hur testmetoderna fungerar och elektrodernas användning och funktion.

Undersökning av svetsegenskaper för svetsning med rörtråd kontra homogen tråd

Welding is a common method for joining of metal or plastic construction parts. This report describes several different weld methods in general terms. The report focuses on the GMAW method, specifically MAG welding.A case study has also been performed for the company Wenmec. The task received from the company was to compare the mechanical properties of joints welded with the tube electrode called Nittetsu SM-3A and joints welded with the homogenous electrode called ESAB Aristorod 12.63. Both types of weld joint were welded with the MAG method with an Argon based shielding gas with 18% CO2.

Bakgrundsbrusets effekt på kognitiv prestation samt skapandet av falska minnen : Om bullrets inverkan i öppna kontorsmiljöer

This study aimed to explore how 31 collage students' cognitive performance and their ability to create false memories were affected by the exposure of an extraneous background noise. The studies main hypotheses were based on previous research on how extraneous noise affect the cognitive ability and the creation of false memories: 1) that an extraneous background noise increases the ability to create false memories, 2) that an extraneous background noise impairs the learning of cognitive information, 3) that an extraneous background noise contributes to an increased representation of fictional words, 4) that an extraneous background noise impedes the ability to understand speech . The results showed a tendency in which false memories increased in the condition without background noise, a result which goes in the opposite direction of the hypothesis. Furthermore, the result supported the hypothesis that the extraneous background noise impairs the learning of cognitive information. The results also showed that there was no effect between the conditions regarding the representation of fictional information.

Gulliver Simulation - En systemarkitektur f or n atverkssimulering av

Nowadays, a lot of resources are spent on developing systems that will make it possible forvehicles to act autonomously, and make them more effective. One of the projects that isworking on this is the Gulliver Project. Gulliver has constructed a number of miniaturevehicles equipped with various sensors, to use as a physical testbed for autonomousdriving. One big disadvantage with this method is the long iteration time that occursduring the development and testing of a new software.This project has improved this process by developing a system architecture of a virtualtestbed where it is possible to simulate autonomus vehicles that communicates throughany type of wireless network. The testbed has made it possible to simulate autonomusvehicle systems that with a reasonable margin of error, acts like the system would actin a physical test.

Automatiserad unit testning

Dagens utveckling av mjukvara går snabbare och snabbare samtidigt som mjukvaran blir allt mer komplex. Att under dessa omständigheter kunna bibehålla en lika om inte högre kodkvalité är en utmaning. På UIQ bestämde de sig för att undersöka om ett automatiserat unit test kunde hjälpa dem. Metoderna för att komma fram till resultaten i denna rapport har varit intervjuer, en enkät, intern information och litteratur så som forskningsartiklar m.m. Denna rapport är en utredning av automatiserade test, vad man bör tänka på, vilka fördelarna är, vilka testfall som är möjliga att automatisera med mera.

Mappingmetoden och bildmaterialet Everyday Life Activities ? behandling av agrammatism hos personer med afasi av Broca-typ

This pilot study describes a therapy method for persons withBroca´s aphasia. This method is based on the mapping hypothesis (Schwartz,Saffran & Marin 1980). The mapping hypothesis is based on the assumptionthat agrammatism is caused by an inability to combine syntactic structurewith thematic roles. This study describes a combination of the therapymethod mentioned above and the Everyday life activities photo series (ELA,Stark 1992). The aim of the study was to investigate if therapy based on awritten sentence/picture format is a viable starting-point for future research.The therapy presented combined written sentences with pictures describingeveryday life activities.

Representativa testnät försvenska eldistributionsnät

This project was started within the Market-Design programme of Elforsk, with the aim of developing representative test systems of Swedish distribution networks. Using such test systems as a basis for reliability and customer interruption cost calculations makes it feasible to analyse the network tariff regulation of Swedish power  istribution companies. In particular, it enables studies of the incentives for companies to invest in system reliability. Until now, the available test systems are either not representative of Swedish conditions, or too small in scale and limited in function.Within this project we have created two test systems. In order to represent the diversity of actual Swedish distribution networks, we have created one test system for urban environments and another for rural environments.

Är dagens studenter morgondagens företagare? : En studie om studenters attityd till företagande

In this paper I study how the repeal of the Swedish wealth tax (1 of January 2007) has affected people´s labour supply behaviour. This particular issue is relevant because it may help us understand some of the effects of the earnings tax changes that have taken place in Sweden. Accoring to standard economic theory a repealed wealth tax is similar to an income effect for the persons who previously paid the tax. That means that they theoretically will want to consume more leisure, that is decrease their labour supply. The method I am using to test this hypothesis is a difference-in-difference approach where the treatment group consists of persons who previously paid the tax and the control group of comparable persons who did not pay the tax.

Att designa ett hjälpmedel för släktforskare att använda vid läsning av gamla handskrivna dokument

Reading old handwritten documents can be a real challenge for genealogists, especially as some documents in Sweden are written in the old German alphabet that is not used today. Much research has been done on how to enable computers to read old handwritten documents, but computers have so far not reached the level of reading that expert humans have. The focus seems to be on the computers reading the document with or without the help of human experts, with the aim of making the documents available in easily read form. I have, however, not found any research on how computers can help non-expert humans trying to read handwritten documents. In this project I have focused especially on beginning genealogists as reading gets easier with practice, and you need the help more in the beginning. By conducting interviews and observations with genealogists I established that reading is an issue and that there are many factors involved that make it difficult to read.

Sverigedemokraternas kriminalpolitik - På stämplingsteoretisk grund

The purpose of this study is to analyze what criminological theory explanations the Sweden Democrats use in their criminal politics. The three main questions from which we assume are: How do the Sweden Democrats approach crime? On which criminological theory is the Sweden Democrat?s policy of crime based upon? And which measures and preventive methods do the Sweden Democrats find appropriate to fight criminality? Our hypothesis is that the Sweden Democrat?s reuse/reproduce the Labeling Theory and that the party with its standpoints in this area and the rhetoric used, create a risk for individuals and/or groups of people to be labeled. The labeling can then contribute to increasing crime, in the form of the self-fulfilling prophecy. Our study is a qualitative study, based on literature studies.

Mode, platser och varumärken : En studie om betydelsen av försäljningsplatser för modeföretag och deras varumärken

In this paper I study how the repeal of the Swedish wealth tax (1 of January 2007) has affected people´s labour supply behaviour. This particular issue is relevant because it may help us understand some of the effects of the earnings tax changes that have taken place in Sweden. Accoring to standard economic theory a repealed wealth tax is similar to an income effect for the persons who previously paid the tax. That means that they theoretically will want to consume more leisure, that is decrease their labour supply. The method I am using to test this hypothesis is a difference-in-difference approach where the treatment group consists of persons who previously paid the tax and the control group of comparable persons who did not pay the tax.

Centraliserad styrning av åtkomstlistor

Can the Danish "Aftalesystemet", a system with the intention to simplify the use of services within health care, be used in Sweden? This project has investigated the possibility by installing and testing the system and explored its functions to detect any eventual problems. Analyses were made of the system's graphical part and the underlying code to see in greater detail how the communication between units occurred, since no actual documentation of it existed. Discussions with the developers took place regarding how the current system works and how further development should continue. In order to test the system, a completely virtual environment was used.

Avfyrnings-/relälåda

This is a report of our examination project in electronics carried out for Bofors Test Center in Karlskoga. The task was to construct an electronic devise for starting up different kinds of measuring systems in exact time during test sequences. The modules that are used today are old and unreliable. Our goal was to construct a prototype, which later on is supposed to be developed into a useful system..

Utvärdering av en snabbtest för diagnostisering av hypokalcemi hos nötkreatur :

Clinical signs of hypocalcaemia in dairy cows are easily recognized, and a rapid response to treatment generally confirms the diagnosis in the field. However, clinical signs of other disorders in cows, such as toxemia, calving paralysis, or muscoskeletal injury, may mimic those associated with hypocalcaemia. Therefore, making a diagnosis of hypocalcaemia on the basis of clinical signs alone may be difficult. In ambulatory veterinary practices, cow-side tests are useful to make the diagnosis and prognosis easier. Kruuse?s Kalcium Test is a cow-side test based on the principle that calcium ions are necessary for coagulation of blood, and that chelation with EDTA prevent coagulation.

Validering av smärtformulär för katt

The objective of this study was to assess validity and reliability for five different owner-completed instruments evaluated to assess chronic musculoskeletal pain in cats. All of the instruments were questionnaires, three asking about behavioral changes, one about the degree of pain and one about quality of life. One of the instruments was written originally in Swedish, the other four instruments were translated into Swedish before use. Data available were records from 57 cats with no signs of pain and 11 cats with different pain-related diagnoses. The diagnoses were ensured by clinical examination including palpation and manipulation of joints, gait testing on a force-plate and X-ray scans. Instrument 1 was completed by 57 pain-free and 11 pain-affected cats.

<- Föregående sida 18 Nästa sida ->