Sökresultat:
796 Uppsatser om Static chamber technique - Sida 16 av 54
ESC-analys och studering av knack på en "Diesel Dual Fuel"-motor
A one-cylinder research engine has been used for studies with a Diesel Dual Fuel concept (DDF). DDF is a concept that utilizes a pilot diesel injection to ignite a homogenous natural gas/air mixture. Emissions and engine efficiency have been analyzed in an emission cycle called European Stationary Cycle (ESC) and the knock/pre-ignition problems with this type of engine have been investigated.At low and mid torque levels, an early diesel injection around 60 crank angles degrees (CAD) before top dead center (TDC) was used. At these loads raw NOxemissions was below EURO 6 level (0.2 g/kWh). NOxwas at EURO 5 level over the complete ESC without after treatment and with SCR at high loads it should be possible to reach EURO 6.One issue with DDF is the high HC emission levels.
Utveckling av instyrningsfunktionen hos ett dockningsinterface
In this project the task has been to develop a product that will facilitate an operation for personnel working in a sterilization center. The operation is to steer the front of a loading trolley into the chamber of an autoclave, a so-called docking. The moment is complicated because the margins to deviate from ideal docking position and still succeed, is very small.The principal Getinge's desire was that the product could be retrofitted at the customers on their existing systems. One of the demands was that the product should fit two types of trolleys, one with a adjustable working height and one with a fixed working height. Getinge is supposed to purchase the system from a subcontractor who shall manufacture it and the requirement from Getinge is that the cost of purchase mustn't exceed SEK 500Initially principles, solving the problem was developed.
Abrasiv nötning av polymerer tillverkade genom 3D-skrivning
Volvo Cars in Skövde manufacture and assemble Volvo engines. When attaching the ignition coil to all 4-cylinder engines, a special mounting tool is required. This mounting tool is currently manufactured from injection-molded polyoxymethylene (POM), a thermoplastic. It has been noted that the life span of the tool is shortened as a result of abrasive wear that occurs during the attachment process of the ignition coil.An investigation of the possibility of manufacturing the mounting tool with a 3D-printer is undertaken in cooperation with ÅF, a consultant to Volvo Cars. A literature study is first presented to introduce broader knowledge on the subject.
En ansats för stadsmiljön : ekosystemansatsen som vägledare för Uppsala kommuns ekologiskt hållbara stadsutveckling
The aim of this paper is in part to distinguish the ideas raised in the Swedish political debate on the new discrimination law in relation to protection of groups. Is protection by law against discrimination needed for the individual or the group? If it is needed for members of groups, are these groups viewed on as static or variable. Are there any conflicts present between group interests? We link these ideas to three different theoretical perspectives: multiculturalism, feminism and intersectionality and further examine the differences and contradictions between the perspectives represented by members of parliament.
Kultursponsring i Moderaternas motioner: En diskursanalys
The purpose of this bachelor thesis is to study cultural sponsorshipof cultural institutions and cultural events in some particular pointsof views. Namely, how do the Moderate party look at culturalsponsorship based on their motions and how these motions havebeen received by the Swedish parliament. The aim has beenbroken down into three questions. Firstly, how does the Moderateparty look at sponsorship of cultural institutions and culturalevents based on their motions on the subject. Secondly, whatviews have been existed in parliament both in committee andplenary, against the motions? Thirdly, what are the most relatingparagraphs for the different material groups.
Agricultural and forestry business owners? perceptions of banks
Over the course of the past the agricultural sector has been characterized by radical market changes. Changing market conditions have forced owners of agricultural and forestry businesses to make further investments. This increase in investments has led to a greater need for external capital, which has increased the relationship between banks and owners of agricultural and forestry businesses. The financial sector is characterized by strong rivalry, which forces banks to create strategic positions in the financial market. Since agricultural and forestry businesses are generally seen as secure customers by banks, due to high property and land values, the competition between banks with agricultural and forestry businesses as customers has amplified.
?När min kompetens tillvaratas på ett bra sätt? ? skolpsykologers upplevelser av att arbeta i elevhälsan
Syftet med denna uppsats var att beskriva under vilka omständigheter skolpsykologer upplever att deras kompetens tillvaratas i elevhälsan. Sju intervjuer genomfördes utifrån Critical Incident Technique och analyserades med innehållsanalys. Resultatet visade att 1) insats som genererar psykologisk insikt hos mottagaren, 2) kontroll över yrkesroll, 3) anpassning till given organisationsform, 4) ledning som har psykologisk kunskap och 5) välfungerande elevhälsoteam är viktiga omständigheter för att psykologisk kompetens ska tillvaratas. Resultatets värde för att förstå skolpsykologers psykosociala arbetsmiljö diskuterades och en generell slutsats som drogs var att resurser behöver prioriteras till utvecklingsarbete av elevhälsan..
Den dubbla yrkesrollen : Om yrkeslärares kompetensutveckling inom karaktärsämnet
The Sami people are a national minority in Sweden, but are also considered as native citizens of Sweden, Norway, Finland and Russia. The world has however a very limited knowledge about the Sami?s and their cultural background.The aim of this proposal is to examine six different history schoolbooks which depict the Sami people in Sweden. In addition, one of the key elements of this proposal is to understand how the selected literature represents the Sami people.Lastly, the proposal also seeks to review if the literature in the schoolbooks represents the elementary curriculum goals (Lpo94).The selected method was to do a text analysis of the literature and to illustrate that is presented in the reviewed schoolbooks. The text analysis is completed with an analysis of the illustrations and pictures that are presented in the selected schoolbooks.The key findings were that the review in majority of schoolbooks has stereotypical descriptions of the Sami people. The Sami people are generally depicted with the hut and the reindeer management in majority of the reviewed schoolbooks.The research about the Sami people is inappreciable in majority of the reviewed literature. In addition, the Sami people are often presented in connection with ?other? history, such as the silver ore in the mines or the territory dispute with settlers from the south of Sweden.
Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar :
Testicular measurements and daily sperm output (DSO) are important factors affecting reproductive capacity of stallions. In the present study testicular measurements of 10 Swedish half-blood stallions were determined (height, length, width and volume). Ejaculates were collected from each stallion once daily for 10 days to evaluate some important seminal characteristics: gel-free ejaculate volume, sperm concentration, percent progressively motile spermatozoa and total number of spermatozoa (TSN). The gel-free ejaculate volume was measured with a graduated cylinder, the sperm concentration was counted in a Bürker chamber, the sperm motility was estimated in a phase-contrast microscope and TSN was determined by multiplying the gel-free seminal volume by the sperm concentration. Testicular measurements were as follows (left and right testis): height 7,5 cm and 7,8 cm, length 10,6 cm and 10,8 cm, width 6,5 cm and 6,6 cm, volume 278,2 cm3 and 293,8 cm3, scrotal width 12,3 cm and total testicular volume 572,0 cm3 .
Folkbibliotekssponsring : en undersökning av alternativa finansieringsmöjligheter för svenska folkbibliotek
As public libraries in Sweden receive the bulk of their budget from local government funding, which has stayed static or, at best, seen small increases, libraries have been faced with inadequate resources with which to satisfy increasing expectations from users. As few libraries are over-funded in the first place, ways may have to be found to combat this situation. The aim of this Masters thesis is to examine alternative sources of funding for Swedish public libraries, and my main focus of interest is that of sponsorship. The method used is a literature study combined with an empirical study, in which interviews were conducted with five persons each with long experience of working with public libraries. The literary study deals with the concept of sponsorship, and the motivations for companies to sponsor are also examined.
Objektiv utvärdering av hälta under ryttare
Background: The most common reason for veterinary care in horses is lameness. Lameness in riding horses is often difficult to evaluate and in many cases may require riding to come to a diagnosis. Evaluation of lameness has proven to be very subjective and depends on the examiner. There is a need to evaluate ridden horses in an objective way.
Gubben i lådan. Flört eller freak? : En kvalitativ studie av Frida och Veckorevyns framställning av manliga egenskaper.
Weekly lifestyle magazines constitute an important role for many young people these days. Their purpose is to inform and entertain a broad public within subjects such as fashion, friends, relationships, men and beauty. Frida and Veckorevyn are two big magazines that have a big influence on young women. One subject that frequently occurs is articles about men, written by women. This study focus on how (with which qualities and weaknesses) these women choose to subscribe men.
Lika möjligheter till ett livslångt lärande?: en studie av svensklärares förhållningssätt till användningen av skönlitteratur och skolbibliotek
The purpose of this study is to examine the view of Swedish language teachers on the role of fiction and of school libraries within the compulsory school?s teaching of Swedish of form 6-9. The questions to be answered are:? What part do Swedish language teachers (hereafter called teachers) think fiction is playing regarding the pupils inclination to read and reading promotion?? What is the attitude of teachers regarding the function of fiction in the Swedish subject?? What do teachers consider being the role of the school library in education, and can this be related to the local school library resources?To answer the questions a questionnaire was sent out to thirty-five teachers. Four qualitative interviews were also carried out among the fourteen teachers that answered the questionnaire.
Smärta och extas : En studie om det abjekta och groteska i Nathalie Djurbergs verk
This essay examines the relationships between the different elements in Lisa Jonasson?s collage Existentiell Progg #6 and her very detailed technique. The essay has as its aims to understand and analyze both the details and the wholeness of the artwork and to try to put the collage in an art historical context. The thesis finds that Existentiell Progg #6 has a connection to the imagery of Africa and other collage artist such as Hannah Höch and Nancy Spero, which also gives the paper a perspective of feminism in the arts. The paper continues to create an understanding for the collage work by putting it in to Theodor Adorno?s theories about nature, the human being and the animal kingdom.
Aktiv ventilstyrning
To achieve an optimal combustion, an even air/fuel ratio in the combustion chamber is required. An optimal combustion leads to reduced amount of emissions due to a more complete combustion, which is an important matter because of the sharpened environmental laws. This can be attained, among other things, by applying entirely variable cam times. To optimize the engines efficiency and its emissions at all workloads and speeds, an active valve control can be applied. This means that the intake and exhaust-valves can be opened and closed at any time, independent of the crankshaft position.