Sök:

Sökresultat:

604 Uppsatser om Curve resistance - Sida 30 av 41

Möjligheter att minska kväveutlakningen genom att anpassa kvävegödslingen till variationer inom stråsädesfält

Due to excess precipitation that cause runoff, all soils in Sweden naturally leaches nitrogen.High leaching from arable land is an environmental problem when the runoff reacheswaters. In the international agreement, Baltic Sea Action Plan, the aim is to reduce therunoff of nutrients. Sweden has agreed to reduce its load of e.g. nitrogen to the Baltic Sea.One of the proposed measures is an increased use of site-specific N-fertilization, which hasbeen shown to increase nitrogen use efficiency and therefore also reduce the nitrogen runoff.Either yields are increased with the same total amount of nitrogen, or the total quantityof nitrogen is reduced with preserved yield levels, which is profitable for the farmers.The dynamics of nitrogen leaching differs between top dressing applications above orbelow the economical optimum. There is a consensus about a difference in the dynamics,but not about its magnitude.

Kollektivtrafikanalys av Frihamnen Göteborg. En studie av olika utbyggnadsscenarier och dess transportbehov vid en färdig utbyggnad av Frihamnen år 2040

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

Arbetsberedningar i syfte att öka delaktighet och tillvaratagande av kompetens bland yrkesarbetare -Utvärdering av ett nytt arbetssätt för Skanska Region Hus Göteborg

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

"Det är så mycket män överallt" : En kvalitativ studie om kvinnliga sportjournalister i en mansdominerad bransch

This study was focused to highlight the problems that comes with being a minority on a workplace, in this case female sports journalist who are working in a male dominated sports field. The objective was to find out how the female sports journalist was experiencing working in such a domain, with focus on journalists who works on local news papers. The study also wanted to look on how these workplaces incorporated gender in their daily work.       In combination with gender theory, with concepts as masculine hegemony and power structures, I also choose to apply the american researcher Rosabeth M Kanters concept ?token?. With these aspects in mind I analyzed the five interviews that I carried out with female sports journalist with a qualitative data analysis.           The results of the study showed that the female sports journalist in some aspects were aware of the difficulties of being a woman in a male dominated area ? when they were talking about the profession at large.

Kvinnor som varit utsatta för människohandel för sexuella ändamål : Hälsofrämjande omständigheter

I denna c-uppsats har vi eftersträvat en förståelse kring vilka omständigheter som hjälper kvinnor utsatta för människohandel för sexuella ändamål att gå vidare och bygga upp ett nytt liv. För att nå denna förståelse har en kvalitativ intervjustudie genomförts där personer som hjälper dessa kvinnor har delat med sig av sina erfarenheter och kunskaper. Utifrån deras uttalanden har det i analysen gått att urskilja fem teman som beskriver de hjälpande omständigheterna. Dessa teman beskriver bland annat hur kvinnorna tar sig ifrån sina människohandlare med hjälp av andra, hur de beskrivs som starka överlevare, hur kvinnorna behöver tid, uppmuntran och få ordning på praktiska bitar samt hur nätverk och en framtidstro kan ge dem styrka. Dessa omständigheter, som framkom hjälpa kvinnorna att bygga upp ett nytt liv, tolkades sedan utifrån den salutogenetiska modellen med fokus på generella motståndsresurser samt en känsla av sammanhang.

Kartläggning av flamskyddsmedel till polyester och polyamid

Flamskyddande kemikalier används idag inom en hel del olika områden. Ett stort område är textil, där hemtextil är dominerande. Det finns en mängd olika typer av flamskydd på marknaden. Alla har till uppgift att sakta ner brandförloppet eller helt förhindra att en brand uppstår. De halogenerade flamskydden är de mest effektiva men har många kopplingar till miljöproblem.

Tusen bilder, tusen ord. Ett socialt kreativitetsprojekt med unga hbtq-personer.

The aim of the essay is to explore how so called ?safe spaces? are built, and the part that creativity can play in this construction. The essay also explores the duality of idea-based social work that at the same time strives to support vulnerable groups and strives to make social and political changes. The essay has its empirical base in the RFSL Ungdom project ?Tusen bilder, tusen ord? (A thousand pictures, a thousand words).

Motstånd mot genusarbete i skolan utifrån ett socialpsykologiskt perspektiv

Magisteruppsatsen studerar pedagogers erfarenhet av motstånd mot genusarbete samt försöker förklara motståndet utifrån socialpsykologiska teorier. Semistrukturerade intervjuer genomfördes med lärare som arbetar med skolans äldre åldrar. Samtliga lärare var engagerade i genusarbete på sina skolor. Tidsbrist samt ointresse var två former av motstånd som kollegor och skolledning utövade. En svårare form av motstånd visade sig vara tillmötesgående motstånd ? då motståndsaktörer ger sken av att vilja arbeta med genusperspektiv men i själva verket låter det bero.

Betongpelare och brand : En utvärdering av 500 °C isotermmetoden

At the beginning of 2011, Sweden started using the European rules for structural design, the Eurocodes, instead of the previous national rules. In both the previous rules and the Eurocodes, it is possible to dimension concrete columns using tabled values. However, the required cross section measurements have increased considerably. Moreover, it is possible to dimension concrete columns using calculations, however, this is unusual.The development of a fire in a fire cell can be divided into the growth stage, the fully developed fire and the cooling phase. The duration of each phase, as well as the temperature, is dependent on a number of factors, e.g.

Almens vara eller icke vara : om almsjukan och resistens

En frisk alm lever i fyra till femhundra år. Men smittas almen av den förödande almsjukan så kan trädet dö tillföljd av sjukdomen inom några månader. Almsjukan är en vissnesjukdom som orsakas av de två sporsäcksvamparna Ophiostoma ulmi och Ophiostoma novo ? ulmi. Sjukdomen sprids av almsplintborren eller via rotkontakt.

Från väpnad oppositionsgrupp till politiskt parti- En komparativ studie om transformeringen och institutionaliseringen av RENAMO, FRELIMO och SWAPO i Moçambique och Namibia

This thesis explores and compares the former armed opposition groups; Mozambique National Resistance (RENAMO), Front for the Liberation of Mozambique (FRELIMO) and South West Africa People's Organization (SWAPO) transformation processes into political parties. The first question addressed is; What factors determines the ability of these armed opposition groups to transform into political parties after armed conflict? The question is addressed through four structural and organizational factors; international involvement, the organizations ideology and identity, their ability to change inter-elite relationships and their ability to change collective incentive strategies. The second question addressed is if the transformations process can affect the parties? degree of institutionalization? The degree of institutionalization is examined through the party's adaptility, complexity, autonomy and coherence.

Prion infection of ovine cell culture with a natural Swedish scrapie isolate from 1986

Scrapie is an infectious neurologic disease in sheep caused by prions, corresponding to transmissible spongiform encephalopathies (TSEs) in other species. The prion is presumably constituted of PrPSc, the misfolded form of the normal endogenous prion protein, PrPC, which is found in practically all cells in the body. PrPSc can induce a conformational change in PrPC and misfold it as an imprint of itself; this is how prions amplify and spread. The process of conformational change is poorly understood and there might exist intermediate forms between PrPC and PrPSc. Bioassay using mice has traditionally been the golden standard in prion studies but is limited by cost and time.

Detection of mutations in dihydropteroate synthase (dhps) and dihydrofolate reductase (dhfr) in Plasmodium falciparum in eastern Sudan

ABSTRACT: Commercial swab transport systems are used for collection and transporting of fecal and other microbiological samples. This system must maintain viability and contribute to survival of microorganisms during transport to the laboratory. Four swab transport systems have been compared, eSwab, ?- Transwab and fecalSwab, all three with flocked swabs, and Copan Venturi Transystem with rayon swabs. The study followed the recommendations from the Clinical Laboratory Standard Institute; document M40-A for recovery of Samonella, Shigella, Yersinia and Neisseria gonorrhoeae after storage for 0, 6, 24, 48 and 72 h at room- (22-25°C) and refrigerated (2-8ºC) temperature.

ACL-rupturer hos fotbollstjejer ? riskfaktorer och prevention

Non-contact anterior cruciate ligament (ACL) injuries is a serius and traumatic injury to the knee that is common in female soccer players and often force the player to quit or lower the level of activity because of lost stability in the knee or from fear to suffer  a new injury. Female soccerplayers have a higher risk than their male counterparts to get an ACL rupture and especially adolescent females have a high risk. The most common causes to a non-contact ACL rupture is side-cutting manuvers and landing after jumping. Every other player with an ACL rupture develops osteoarthritis within 10-15 years from the time of injuryResults: The higher risk for females to incur a ACL rupture is due to smaller intercondylar notch, they?re in the follicular or ovulatory phase of their menstrual cycle, increased knee laxity, dominance in the quadriceps muscles, flexion in hip and valgus movement in the knee.

Utökning av mätområdet för turbinverkningsgraden på avgasturbo

The Goal with this Master of Science thesis is to expand the possible turbine efficiencymeasurements on an exhaust turbocharger. It was done as a part of the CICERO competencecentre. To feed the turbine with air a special flow rig has been used. Instead of loading theturbine by just restricting the compressor flow a docking system for an electrical dynamometer isdesigned to use the dynamometer as an additional loading source. By using an electricaldynamometer as loading device for the turbine, measurements are not depending on compressorperformance.A large part of the work consists in designing accessories for the dynamometer.

<- Föregående sida 30 Nästa sida ->