Detection of leukocytes in semen from boars is part of the routine control of semen quality. Leukocytes in semen can cause damage to spermatozoa that leads to impaired fertilization. In the artificial insemination (AI) industry there are standard routines for the quality control of the boars and of the neat semen before use. Since 2001, Quality Genetics has not done the leukocyte examination on semen samples from boars which are used for the production of pigs for slaughter. The purpose of this study was to investigate the occurrence of leukocytes in semen from AI-boars. The questions addressed were whether there are boars that have leukocytes in their semen and how frequently it occurs and, moreover, if there are differences between breeds, or even between individuals whose semen was checked before use in AI-dose production compared to those which were not. The study included a total of 135 AI-boars, of which 67 were Hampshire, 35 Yorkshire and 33 Landrace, all belonging to Quality Genetics AI-Station in Hållsta.

Wind power is one of the sources of renewable energy which has to be developed further in order to lessen our dependence on non renewable sources of energy. It's mainly oil and coal which have to be replaced by green energy. Wind power is already established in many countries, for example Germany, The United States of America and Denmark but it has to be continually developed and expanded to meet the needs of the growing energy consumption in the world. During the last few years many types of small wind turbines have appeared on the market. These small wind turbines are an alternative to the big wind turbines or power generators which demand huge sums of investment money.A new target group can now buy the small wind turbines in order to cover their own usage of electricity.

Today there are many applications of digital terrain models (DTM) and the requirements of low uncertainty increases. Most of the DTM are produced with Global Navigation Satellite System (GNSS), terrestrial laser scanning (TLS), airborne laser scanning (ALS) and total Stations. Guidelines for the preparation and verification of DTM are found in Swedish Standards Institute ? Technical Specifications (SIS-TS) 21144:2007 and SIS-TS 21145:2007. These were defined in collaboration between Swedish National Rail Administration, Banverket, and Swedish Road Administration, Vägverket, to satisfy the needs of requirement formulations in the production of DTM planning, design and construction. The purpose of this paper is to produce and control DTM over Åkermans kulle, located west of the University of Gävle, according to SIS TS 21144:2007 using GNSS with network-RTK, TLS and ALS.

In this essay a proposal of city renewal is made for the new train Station area built on highly productive agricultural land in Landskrona. The proposal is based on how the situation for the agricultural land in terms of exploitation looks like today and also on theories of urban governance to find out why the area turned out the way it did..

Syftet med denna studie är att på ta reda på vad en bra hands-on-artefakt för museum är och hur den bör utformas. En kvalitativ fallstudie är gjord på utställningen Sinnrika människan på Naturhistoriska riksmuseet. Empirin har fåtts fram genom korta intervjuer och observation med museibesökare samt djupgående intervjuer med personer insatta i ämnet. Resultatet har sedan både analyserats individuellt och korsanalyserats, efter detta har resultatet kategoriserats. Slutsatsen för studien visade att det är många aspekter som spelar in vid skapandet av en interaktiv Station, en av de viktigaste aspekterna är tydlighet om vad syftet med Stationen är och hur den utförs..

The hydropower from Nissan River is of national interest and produces annually 230 GWh from the twelve power Stations in the main flow. For modified waters a consideration between the power production and the biological values has to be made. This reports serves as a pre-study for Nissans Vattenråd. It tries to evaluate some of the biological values in the Nissan basin and map the power production in the area. And the size and value of lost power production from new fishways for the twelve Stations in the main flow.The investment of new fishways is calculated using simplified templates with values from the business.

?Halmstads Fastighets AB? is a local real estate company investing in sustainable development. One problem though is that the domestic waste, particularly the source separation, at the three resident blocks for students? isn´t working very well. This creates inconveniences for people and environment as well as decreasing the impression on the estates.This project has had the ambition to improve the domestic waste and increase the amount of source separation at HFAB´s student hostels.

Älvkarleby, landscape character and design proposal is a Graduated Thesis (30 ECCcredtis), in the subject of landscape planning at the Swedish University of Agricultural Sciences, the Department of Rural and Urban Development. This thesis is a study and implement of the method "Landscape Character Assessment" (LCA), developed in England and Scotland as tool to analyse and highlight the landscape in different planning processes. The purpose of LCA is to increase the understanding and strengthen the role of the landscape. The thesis consists of three main parts: landscape characterization, guidelines and a design proposal. The landscape characterization emphasizes the values of the landscape in different types of planning processes, a documentation to base estimations on in any kind of change in the area. Theese estimations have resulted in guidelines that give proposals to the development of the landcape, focusing at the desingproposal.

Allt större och större andel företag väljer att presentera och förmedla varor och tjänster via e-handel. En viktig aspekt vid e-handel är att kunden känner förtroende för e-handelsapplikationen och företaget. Denna rapport redogör för vilken inverkan multimediala inslag har för förtroendet av en e-handelsapplikation, vid initialt användande. En undersökning har genomförts med hjälp av en kooperativ utvärdering av fyra e-handelsapplikationer vilka innehåller olika typer av multimediala inslag har.Resultatet av undersökningen visar att multimediala inslag inverkar positivt på förtroendet för e-handelsapplikationer. Däremot finns indikationer på att för hög grad av multimedialt inslag inverkar negativt på förtroendet för e-handelsapplikationer..

Detta examensarbete behandlar konceptframtagning av ändStationer till en föreslagen automatbana mellan Luleå Centrum och bostadsområdet Kronan. Kollektivtrafik tillhör framtiden och fungerande system är ett krav när nya städer byggs. Dagens kollektivtrafik kräver mycket stora subventioner från skattebetalarna och många system bär bara bråkdelar av sina kostnader. NoWait Transit AB har tillsammans med företaget ReRail AB ett nytt tågkoncept som anses vara billigare, miljövänligare och kräva minimalt med underhåll.Arbetet inleddes med en nulägesanalys av berörda företag och Luleå kommun vilket gav nödvändig förståelse för NoWaits tågkoncept. Deras koncept går ut på att man skapar en tågbana med kontinuerlig drift, liknande en rulltrappa.

This report describes the manufacture and control of a flying platform. The report describes the basic and fundamental theories required to get the platform flying. It touches on subjects such as A/D-conversion. PWM-control and PID-control. The sensors used in the platform are a gyro and an accelerometer.

Peat litter is a soft material with high absorbency. About hundred years ago many farmers in Sweden used peat litter to their dairy cows. After the World War II the use of peat litter decreased and the farmers used more straw. Nowadays (year 2007), when it is harder to find straw and sawdust to buy, peat litter is advancing again. The purpose with this study is to investigate peat as a litter to dairy cows.

Helsingborgs stad är en Stationstät kommun. Utmed tre järnvägslinjer finns inte mindre än tio lokaltågStationer. Intentionerna i kommunens översiktsplan är att lokalisera bebyggelse i Stationsnära lägen för att skapa en flerkärnig stadsstruktur och att leda in landsbygdens grönstruktur in i de centrala delarna av tätorten. Behov och önskemål om ytterliggare tre Stationer finns och Raus, i södra Helsingborg, är ett av de önskade Stationslägena. Fram till 1966 hade Raus en Station och i samband med anläggandet av Västkustbanan skapades återigen förutsättningar för en Station.

This study was conducted at VikingGenetics' bull breeding Station in Falkenberg, Sweden. The bulls waiting for the results of their progeny testing at this Station are either kept in group housing or individual housing. Since both of these housing systems have advantages and disadvantages, it was in the interest of VikingGenetics to know which of these housing systems is the best. The aim of this study was to investigate the welfare of the bulls in these two housing systems through behavioural observations and the use of activity monitors. In the preparations for the study 16 bulls, 8 in each housing system, were chosen.

This thesis consists of four case studies. The objective is to find out how to get a well functioning cow traffic in an automatic milking system. Different technical and building solutions are analysed and some adjustments are proposed for the DeLaval herd management software. Case study 1: Lactation chart comparison from traditional cow traffic and Feed First? cow traffic Case study 2: Farm A - a study of the precedence passage and the cow traffic Case study 3: Farm B ? an overview of the farm and their way of working Case study 4: Key factors ? how can we judge how well a VMS farm is working? Case study 1: Lactation chart comparison from traditional cow traffic and Feed First? cow traffic In this survey data is analysed from before and after rebuilding to Feed First? cow traffic. Lactation graphs are compared between traditional cow traffic and Feed First? cow traffic.