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15813 Uppsatser om Test driven utveckling - Sida 15 av 1055
Hur enkel- & dubbelportsturbin i kombination med två olika avgassamlare påverkar gasväxlingsprestanda på en Scania V8
The exhaust arrangement on a Scania V8 consists of one manifold at each bank connected to a twin entry turbine (8-2-2). A study in GT-Power has shown improved performance and reduced cylinder to cylinder variations using two manifolds at each bank in combination with a single entry turbine (8-4-1). This thesis work analyses the difference in performance shown in simulation and verify it by engine test.The initial work was focused on simulation in GT-Power. Investigating how exhaust manifold volume and pulses effects the turbine efficiency and the mean effective pressure during the gas exchange. To verify GT-Power simulations four engine tests with different exhaust arrangement have been made.The results from GT-Power simulation indicate that a larger exhaust volume improve the turbine efficiency.
Formulering och provning av en ny typ av sågkedjeolja
Formulation and testing of a new type of chainsaw lubricantThe company Agro Oil has come up with the idea of developing an environmentally adapted chainsaw lubricant with a new unusual base fluid. A field test with a tree-harvester shows unsatisfactory low temperature properties and high wear. In this work the viscosity, price and pour point of different combinations of the given base fluid and three other base fluids have been investigated. Desired viscosity and price are determined for different formulations. The new lubricants tested show lower pour points than almost all products on the Swedish market.A test equipment has been developed to investigate the wear.
Portning till ARM Cortex M3 och prestandajämförelse
The Anybus CompactCom modules are today using the Anybus NP30 processor. These modules are used for communication between industrial machines and larger network protocols. The communication loads on these systems are increasing every day and the limiting factor for the system is the processor.HMS, the company that develops the Anybus CompactCom, has shown interest for a benchmark test between the old processor and a new processor, ARM Cortex-M3. This project includes that benchmark. To be able to get results that reflect reality a test environment was created to simulate Anybus CompactCom conditions.
Riktlinjer för effektivisering av arbetet med Simuleringsdriven Konstruktion
Då många företag vill skaffa sig marknadsandelar genom att leverera rätt produkt, vid rätt tid och för rätt kostnad har de börjat arbeta med Simuleringsdriven Konstruktion. Simuleringsdriven Konstruktion hjälper dem att genom ett iterativt arbetssätt hitta optimal konstruktion tidigt i NPD-processen och därigenom reducera tid och kostnad för produktutvecklingen.Många företag som sysslar med forskning och utveckling kräver idag mer av provutrustning än tidigare för att kunna kontrollera och möta ökande krav på produkter. Mer sofistikerad provutrustning behöver utvecklas för att möta ökade krav på produktprov. Krav så som säkerhet, kapacitet, tidseffektivitet, noggrannhet etc. Att även tid och kostnad för utveckling av provutrustning reduceras är viktigt.Detta examensarbete har syftat till att ta fram riktlinjer för effektivisering av arbetet med Simuleringsdriven Konstruktion i utvecklingsprocesser.
Fysisk kapacitet hos poliser i yttre tjänst utvärderad med Coopers och Harres test
BAKGRUND: I andra delar av världen testas den fysiska kapaciteten hos yrkesverksamma poliser regelbundet. I Sverige finns inga tester eller krav på fysisk kapacitet på yrkesverksamma poliser efter genomförd grundutbildning. SYFTE: Att undersöka den fysiska kapaciteten hos poliser i yttre tjänst i Norrbottens polisdistrikt, för att påvisa om det finns ett behov av åtgärder för att upprätthålla yrkesaktiva polisers fysiska kapacitet. METOD: Förfrågan om frivilligt deltagande från poliser i yttre tjänst gjordes till delar ur Norrbottens polisdistrikt. Coopers test 2000 m och Harres test, vilka Polishögskolan använder i rekryteringsprocessen, valdes som mätmetoder.
Konsten att skrämmas : En studie om estetiska element i Friday the 13th part II och andra slashers
Swedish students' knowledge of both mathematics and reading comprehension has deteriorated in recent years. Scientists are discussing whether there is a connection between these areas and that the pupils deteriorating math skills may have something to do with their increasingly lower results in terms of reading comprehension. To investigate this possible connection, I conducted a survey among students in ninth grade and have come to the conclusion that the scientists are right: this connection absolutely exist. Students who received a high score on tasks designed to test students' mathematical problem-solving skills, also received high results on the reading comprehension test. And students who received a poor performance on the problem-solving tasks, were also low performers in the reading comprehension test.
Test av modeller för prioritering av förändringsförslag i Stora Enso Skog AB´s nya produktionsplaneringssystem VSOP
In order to evaluate the benefits and costs associated to investments in information technology (IT) managers need to be aware of the complexity in the nature of the task. Hence all the benefits that arise from the investment are not of pure economic character. The complexity of the task is even more obvious when managers also need to prioritize between a number of possible investments in order to fit a given budget.Stora Enso Skog AB is about to implement a new administration system to the organisation and due to that they will also implement a new standard system for the production planning process. In order to seek the modifications in the standard system that needs to be done to fit the organisations way of working, the managers have put together a reference group to seek out these modifications.The aim with this report is to identify a model that can prioritize these suggested modifications and test it practically with a group of future system users. The first part of the report is a literature study to map the existing models that are available.
Överpronation kopplad till ryttarens sits
According to ?Fotförbundet" (2012), Overpronation occurs frequently (80 %) in the Western World and furthermore overpronation of calcaneus influences the position of the pelvic and thorax (Fotförbundet, 2012; Behnke, 2008).
The aim of this study is to investigate whether or not it is possible to connect overpronation of calcaneus to the problem in the rider?s seat as observed by the instructors of Strömsholm. The study will also investigate if the riders seat problems as noticed by the riding instructors are comparable with the problems found by the analyst during testing. One purpose with the study is to raise the instructors and riders awareness that anatomical deviations in the rider might influence the rider?s position in the saddle.
The questions of the study are:
- Is it possible to see seat problems in riders with overpronation of calcaneus?
- If it is possible to see more seat problems in riders with overpronation of calcaneus, do the instructors in the study considers the seat problems be similar with each other?
- If there are seat problems in the study, is it the same according to the instructors and the analyst in human biomechanics?
The hypothesis of the study is that overpronation of calcaneus has an effect of the rider?s position in the saddle.
The study is conducted as a blind study where the test subjects have been filmed (from knees down) as they walked barefooted and later while riding.
Mäns och kvinnors possible selves om framtida arbetsliv
Människors yrkesval och syn på framtida arbetsliv influeras av olika faktorer som i sin tur har formats av evolutionen eller den sociala omgivningen. Människans kognitiva förmågor är ett av elementen som påverkar yrkesvalsprocessen, men är också kanske en bidragande orsak till könssegregeringen på arbetsmarknaden. Hur människor ser sig själva i den framtida yrkesrollen kan också vara en anledning till varför det finns en könsskillnad på arbetsmarknaden. Markus and Nurius (1987) har myntat begreppet ?Possible self?, vilket de definierade som självbilden i framtida situationer.
Drumtest : Ett verktyg för testkörning av cykelfälgar
In this thesis you will be able tofollow the design work of a drumtest. A tool that by having a rotatingdrum with equally positioned obstacleswill simulate the conditions a mountainbike rim will pass through.Initially there is a specification ofsome parameters and requirements thatthe design had to fulfill. There is alsosome brief background information aboutwhy a drum test is required for abicycle rim manufacturers and about thecompany Innolite Design AB that thisthesis is done for. After that itfollows an extract from conceptgeneration with the chosen concepts andsolutions but also some of the conceptsthat were not chosen.The thesis also contain a part where thereader cangain a deeper understanding of how thedesign works as well as some moredetailed facts about how the choice ofmaterials, their thicknesses, etc. havebeen made.
Hållbar utveckling i förskolan : En undersökning om hur nio föräldrakooperativ arbetar med hållbar utveckling
Denna studie baseras på kvalitativa intervjuer av förskolechefer vid nio föräldrakooperativ. Syftet är att undersöka hur dessa arbetar med hållbar utveckling i praktiken samt vilka hinder och möjligheter de ser i det arbetet..
Hjärtfrekvens och kortisolkoncentration hos valpar under olika typer av valptest :
The aim of this study was to find possible relations between behaviour and physiology for puppies during different parts of a puppy test. This work deals mainly with the physiological part of the study. Thirtysix puppies, från five litters, were tested in a behaviour test where heart rate was measured and saliva samples were collected before and after each part in the test. Saliva and urine samples were analyzed for corisol concentration as an indicatior of stress. The tests were performed during two consecutive days in the breeders' home when the puppies were seven weeks old.
In addition, heart rate and cortisol levels were also measured in the bitch since we were interested in finding out if there were any relations between physiological levels in bitches and puppies.
Fonologi hos svenska 5- och 6-åringar med typisk språkutveckling : Referensmaterial till det fonologiska testmaterialet LINUS
A new phonological test, LINUS, for Swedish-speaking children between the ages of three and seven, has been developed at the speech and language pathology department at Linköping University. The aim of the present study was to create a reference manual for the long version of the new test. The participants in the present study were children between the ages of five to seven in a medium-sized municipality in the Northern part of Kalmar County, Sweden. In total, 124 native Swedish-speaking children (58 girls and 66 boys) with typical language development participated. The children were divided into two age groups, 5;0-5;11;31 and 6;0-6;11;31 years.
Verbbenämning hos svenska barn i åldern 3;6 till 5;5 år : En studie av prestation på Action Naming Test
Verbbenämning innebär förmågan att benämna en bild utifrån den aktivitet som bilden illustrerar. I tidigare studier har det visat sig att barn tidigt i språkutvecklingen har svårare för verbbenämning än substantivbenämning (Gentner, 1982; Kauschke, Lee & Pae, 2007). Detta förklaras delvis av att verb är mer lingvistiskt komplexa än vad som är fallet för substantiv (Gentner & Boroditsky, 2001), samt att de är svårare att illustrera (Masterson, Druks & Gallienne, 2008). För att undersöka benämningsförmåga används oftast bildbenämningstest och för verb saknas ett svenskt test för barn. Föreliggande studie syftade till att undersöka verbbenämningsförmågan hos svenska barn samt att utröna om den svenska översättningen av Action Naming Test (ANT) är tillämplig på svenska barn.
Utveckling av Breakoutbox för Fuel Flow Transmitter
Development and construction of an electronic Breakout box is the main work for this thesis. The box is a part of a test system for the component Fuel Flow Transmitter and should convert signals to be suitable for a frequency counter. A previously constructed Breakoutbox for this purpose is being old and needed to be recreated. So SAAB Aerotech, Aircraft services, the company for the thesis work wanted to construct a new, more sustainable Breakoutbox adapted to a more modern technology. The signals to the box comes from the transmitter and should be converted to suitable signals for a frequency counter so it can show pulse and time difference between the signals.