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2603 Uppsatser om Constant current regulator - Sida 22 av 174

Radialtätning till Retarder

This thesis has the overall objective to develop the optimum sealing system between the retarder and transmission. Today, there is a pressure-relief and two radial seals separation between the retarder and transmission. It has been found that carbon residue formation may occur between retarder axle and seal lips with, in some cases, leakage as a result.We have in this thesis tried to explain the phenomenon of carbon residue, how it is formed and why it can be seen just on the seals? A rig test was conducted where we show how friction, speed, transmission temperature and mitigation phases of the retarder affects temperatures in the sealing environment. Factors affecting the coke structure are reported, together with proposals for measures that provide a mitigating seal environment.

Modernisering av magnetiseringsutrustning till ASEA generatoranläggning

Följande rapport beskriver ett projektarbete i att ersätta en automatisk spännings regulator (AVR) till en gammal ASEA dieselgeneratoranläggning. Generatorn är installerad på M/S Calmare Nyckel som tillhör Sjöfartshögskolan i Kalmar. Generatoranläggningen används enbart i utbildningssyfte.Den AVR som ska ersättas är en ASEA UTWH310. Det är ett väldigt gammal anläggning och vi uppskattar att den härstammar från 60-talet. Problemet med den gamla regulatorn är att när systemet har körts en stund så är det inte längre möjligt att reglera den reaktiva effekten.

Tillväxt hos Husmossa (Hylocomium splendens) i boreal skog och växthus : effekter av ökad vattentillgång

Hylocomium splendens (Glittering wood-moss) is a common species in the Nordic countries and can be found in many different types of boreal forests. It usually forms dense moss carpets on the forest floor. The shoots grow in segments and new segments form annually on the previous years growth. The size of the segments is probably regulated in a high extent by local micro environmental conditions. Previous experiments suggest increased growth of H.

Kundens kund : En studie i användarcentrerad systemutveckling och designmetoder

This thesis investigates how web agencys in Stockholm use, value and incoroprate the terms usability, user experience and interaction design in their work process. The purpose of this study is to investigate how creative professionals works with the notions of usability, user experience and interaction design with focus on the end user. Our definition of creative professionals is every employee at a web agency involved in the work process of developing digital artefacts in any capacity. We wanted to investigate how these notions are considered, consciously or unconsciously, during the workprocess. Semi-structured interviews were conducted at three different web agencys with eight different employees.

Medarbetarskap- det egna ledarskapet

The study aims to shed light on the phenomenon of employeeship at a Swedish Staffing Agencise . This has been done on the basis of two questions. How can employeeship look like in a service? What is the role given employeeship in developing contexts? In order to answer the purpose and issues have a quantitative approach been used. Based on the theoretical frame of reference has the form of surveys created.

Support i den världsvida väven : En studie om kundtjänst på Twitter och Facebook

Customer service has traditionally consisted of telephone, mail, and later on chat.But the entry of social media has changed the way companies exercise customerservice. Companies should ask themselves whether the same type of traditionalcommunication may or may not function in a new channel and thus whether itcan be applied to social media.The purpose of this study is to describe the companies? use of customer servicein social media and how the communication differentiates from thecommunication in traditional customer service, and also to define the effect onthe customers? relationship to the company. To reach our conclusions we havecombined theoretical references with qualitative interviews.By our analysis, we found that the communication in social media expandsthe possibilities. By entering an unfamiliar channel, customer service has hadto adapt themselves and their language.

Dåligt samvete och tidspress : en studie om modernt föräldraskap

The purpose of this study was to examine the problematic and frustrating aspects of parenthood in the modern runaway world of today. In other words, we wanted to study how parents in Sweden experienced their life as parents in the beginning of the 21th century.We wanted to find answers to the following questions:What kind of problems do parents experience and how do they deal with these problems?What would parents consider to be typical for them as parents compared to how they remember their own parents?What do parents think about family politics?Do parents think they need parent education?If parents want parent education, why do they want it?To answer these questions we used qualitative interviews. With this method we got information from six parents and five professional parent educators who was kind enough to let us interview them. We also gathered information about the subject through literature and news articles.The result of the study can be divided into three parts.

Hallsta Pappersbruks virkesförsörjning

Competition of spruce fiber raw materials has increased dramatically in the last few years, leading to the fact that transportation costs in the current situation represents a much larger share of the total raw material cost. The Holmen-owned pulp industry Hallsta Paper Mill's location on the coast also constitutes a problem, because of the lack of raw material, which is much larger there, than for a pulp mill located in the hinterland. For a coastal industry it?s therefore natural to import much of the raw material by boat or to buy it from the timber terminals, in order to maintain good profitability. The purpose of this study was to analyze how the size of Hallsta Paper Mill timber supply area, without competition, with competition and with terminal use, affects the company ?s transport costs.

Föräldrars upplevelser av att ha ett barn som insjuknat i diabetes

When a child is diagnosed with diabetes the whole family is affected. The effect of the illness often means drastically changes to their daily life. The aim of this study has been to describe the experiences of the parents´ having a child fallen ill with diabetes. The study has been done as a general literature study. The procedure has been to systematically search, critically investigate and summarise results from different studies made on the chosen area of subject.

Frihetens bakgård en litteratursociologisk studie om självets identitetsvåndor i det senmoderna samhället

This Masters thesis is analysing four Swedish novels written by first time authors published between 1993-2002. The purpose is to make the fictitious main characters illustrate what conditions and obstacles there can be for the individual of today to create a self-identity. Anthony Giddens ideas about the self in the late modern society are used as a theoretical framework. In the core of Giddens theory is the concept of reflexitivity which means that the self must be constructed in a continuous fashion because the overall conditions in society are subject to constant change. The questions posed in this study are dependable on Giddens in general and the concept of reflexivity in particular.

Utveckling av programvara till ett inbyggt styrsystem

This thesis considers the development of the software for an, newly developed, embedded real-time control system, based on a Periferal Interface Controller (PIC). The control system is developed to be used for several different applications. In this thesis work, software for two different applications are developed. The first task is a time controlled system, while the other task is implementation of aPI-/PID-controller. A user interface is also developed and implemented.The time controlled system is an automatic horse feeder, which is used for feeding horses at certain predefined points in time.

Child diabetes ? parents? experience Barndiabetes - föräldrars upplevelser

Background: Diabetes Mellitus Type 1 is increasing among children on large parts of the world. The disease strikes not only the child but affects the whole family. The parents are those who are responsible for the child?s treatment and well being. Purpose: The purpose of the literature review was to describe how parents to children with Diabetes Mellitus Type 1 experience and handle the situation around the child?s disease.

Fallstudie av innergårdar och entréplan vid Televerket i Farsta : dokumentation, värdering och framtida utveckling

There are few legally protected gardens in Sweden, and those that are protected are mainly from the 17th and 18th centuries. All time periods have the same value and more modern gardens therefore needs to be protected. Evaluating parks is, however, complicated since it do not exist any methods. One environment from the 1960?s that has not been protected is Televerket in Farsta, Stockholm. The facility has been classified as worthy of preservation by Stockholm City Museum and has received the Kasper Salin Prize.

Sit, Eat, Drink, Talk, Laugh ? Dining and Mixed Media

Sit, Eat, Drink, Talk, Laugh ? Dining and Mixed Media, is an exploratory study of qualities in everyday life and challenges people to enjoy the qualities of mundanity. Seeking inspiration in ethnographic studies, field work was conducted in domestic settings, returning an extensive body of material to work from. The study challenges people to absorb the moment, reflect and enjoy, rather than pacing through a lifetime, with a constant focus on the future instead of the present. This work takes a starting point in food and dining as a social activity, where interactive sound and a reference to online social media is explored through two interventions.

Produktionsoptimering av Kv. Hunden

For many years, there has been a housing shortage in Sweden. Many have been expecting a construction boom in the housing sector, but that has yet to arrive. With the current legislations and guidelines surrounding modern, energy efficient housing; production costs have increased dramatically in recent years. As a result, having a negative effect on housing production despite the high demand for homes.This exam work is carried out on a construction project of Sjötorpshus AB and its purpose is to evaluate how to optimise the construction process for the production of a new residential settlement, "Kv.Hunden", located in Katrineholm. In an interview with the company's MD, Pär Knutsson, four main issues were defined to focus on.

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