Sökresultat:
430 Uppsatser om Maintenance - Sida 18 av 29
Energieffektivt byggande i flerbostadshus : Vad påverkar resultatet?
I Finspång tillverkas gas och ångturbiner. Verksamheten går under namnet Siemens Industrial Turbomachinery AB, som förutom att bygga upp turbiner som separata leveranser även projekterar kompletta kraftanläggningar, där turbinerna ingår, för att producera elektricitet, ånga och värme.Till de gasturbin kraftverk som levereras av Siemens Industrial Turbomachinery AB används ett Simatic PCS-7 styrsystem för att kontrollera turbinerna. För PCS-7 styrsystemet kan mjukvaran Simatic PDM (Process Device Manager) användas för diagnostisk analys av automations komponenter och intelligenta fältenheter. Målet med examensarbetet är att kunna varna tidigare för fel på automations komponenter och fältenheter så att man kan förebygga stillestånds tider som kan uppstå i en anläggning. Examensarbetet visar vad för slags funktioner Simatic PDM har och hur programmet kan utnyttjas i en anläggning.Examensarbetet innehåller en beskrivning av programmet Simatic PDM och PCS 7-styrsystemet.
Skötsel av torvmarksskogar - vad vet egentligen Västerbottens skogsbolag?
About a quarter of the Swedish land area is covered with shallow or thick peat. There is a potential to increase forest production in Sweden with almost 2 million m3/year in selected peatlands with low conservation values. This increase can be accomplished by drainage, complementary drainage, ditch Maintenance operations and fertilization. The purpose of this study was to determine the level of knowledge regarding the management of forests on peatlands and was restricted to selected forest companies in Västerbotten County, with offices in Umeå. Three companies were chosen, SCA, Holmen and Norra Skogsägarna.
Elias Fries : Botaniker och troende vetenskapsman
Domestic weekly magazines in Sweden are characterized by an emphasis on practical editorial material such as cooking recipes and knitting patterns, and also contain a comparatively large share of reader material. This makes it possible to study the readers through texts produced by themselves. The aim of this study of columns of readers' tips on domestic work is to analyze how readers embody a specific femininity centered around the woman as responsible for the home, in the sense of everyday Maintenance as well as aesthetic development. The author defines this femininity as "home maker". The theoretical framework for the analysis is the sociological theory of Pierre Bourdieu, and Jonathan Potter's and Margaret Wetherell's model of interpretive repertoire is also used where modality is discussed.
Utökad Diagostik med Simatic PDM(Process Device Manager
I Finspång tillverkas gas och ångturbiner. Verksamheten går under namnet Siemens Industrial Turbomachinery AB, som förutom att bygga upp turbiner som separata leveranser även projekterar kompletta kraftanläggningar, där turbinerna ingår, för att producera elektricitet, ånga och värme.Till de gasturbin kraftverk som levereras av Siemens Industrial Turbomachinery AB används ett Simatic PCS-7 styrsystem för att kontrollera turbinerna. För PCS-7 styrsystemet kan mjukvaran Simatic PDM (Process Device Manager) användas för diagnostisk analys av automations komponenter och intelligenta fältenheter. Målet med examensarbetet är att kunna varna tidigare för fel på automations komponenter och fältenheter så att man kan förebygga stillestånds tider som kan uppstå i en anläggning. Examensarbetet visar vad för slags funktioner Simatic PDM har och hur programmet kan utnyttjas i en anläggning.Examensarbetet innehåller en beskrivning av programmet Simatic PDM och PCS 7-styrsystemet.
Jordbruksdränering, kostnader och genomförande :
Underdrainage is a costly investment but often a necessity to maintain rationalized plant cultivation, one can also see underdrainage as insurance to successful plant cultivation. Late ripening crops, low yield and difficult tillage cultivation are examples on an insufficient drainage. (Kvarnemo 1983) A drained field rise in land price and the scheme of the tiled drains is seen as a value item.
The interest for underdrainage among the farmers follows with shifting economic situations within agriculture and has for long time been low.
A big part of the Swedish tiled drainage systems is since 1930 and ahead. Many of these tiled drainage systems need to be replaced or complemented. The life length of one tiled drainage system varies with Maintenance but can still remain in good function after 75 years with correct management.
Stureholm - en herrgårdsträdgårds historia, utveckling och framtida skötselmål :
Stureholm Manor and garden is a relatively young farming unit on clay soil in the north
western part of Skåne, a province in Southern Sweden. Since the middle of the 19th century
the landscape has been actively cultivated and has been transformed from oak forrest into
farmingland of high efficiency.
The industrial era during the 19th and 20th centuries meant new posssibilites for cultivation of
these clay soils. With equipment like steam ploughs and the possibility to obtain fertilizers,
the harvest increased considerably. This increased prosperity provided estate Stureholm with
a beatuiful corps de logi, a manor.
The trends prevailing in Europe around the turn of the century 1800-1900 against the growing
industrialism, was turned into a artisan movement known as Arts and Craft. The Swedish
followers idealized our Swedish history and they took the turn of a national romantic
movement that later turned into neoclassicism.
"Vad är det för fel på mig? Varför kan inte jag simma som alla andra?? En studie med kvalitativa samtalsintervjuer om hur det känns att gå i skolan och inte kunna simma
Abstract:Perennials in public areas have during the latest decades been more and more popular. This group of plants has become a more accepted komponent when creating pleasant public places, and people begin to see the functional aspects. Perennials do also give a colour- and senceexperience in a more detailed way than can be achieved with only trees and shrubs. One of the ojects of this essay is to give more examples of motives for using perennials in urban areas.Having in mind the increasing use of perennials, you can expect a growing need for better understading of how to create successfull perennial plantings. In spite of the increasing interest it is hard to find any written information in this subject.
Tecknade serier i bokhyllan: En studie i hantering och förvaring av tecknade serier på svenska folkbibliotek.
This thesis investigates the situation for comics in Swedish public libraries. The main questions is separated into two groups, the first dealing with the physical situation were we investigate placement, cataloguing and shelf arrangement. The second deals with the librarians attitudes towards comics and how they may affect their work. The base for this thesis is the idea that the comic medium may sometimes be treated different than the rest of the libraries collections. Because of this, a theoretical basis is developed which focus on different views on comics.
Ekosystemansatsen på landskapsnivå
The Convention on Biological Diversity (CBD) promotes the Ecosystem Approach (EA). In this thesis it is analyzed how the EA approach could be applied to regional management of coastal areas in Sweden. The aim of this report is to compare management for preserving biodiversity on a landscape level in two regional coastal areas in Uppsala and Västra Götaland respectively. In Uppsala, one of the plans consists of a previous nature reserve and in Västra Götaland, a Regional landscape strategy has been established. The ecosystem approach is used as a theoretical framework in this thesis.
Marktäckande, lågväxt vegetation på ställverksmark : en biologisk bekämpningsmetod mot ogräs
Unwanted vegetation on the land of electric transforming stations is a problem, in the sense that it contributes to higher fire risks and also constitutes an obstacle for people performing Maintenance operations at the station. Such unwanted vegetation is controlled using herbicides and mechanical measures. Since the use of herbicides implies environmental hazards, there is a need to find alternative ways of fighting the unwanted vegetation.
Investigation into suitable plants for ground cover, trials in the greenhouse, trials in the field, soil analyses and compilation of experiences from similar trials are parts of this work. The paper also contains analyses of possible environmental benefits and economical gains. There is also a final discussion of some proposals regarding alternative weed controlling methods.
Perspektiv på avreglering av svensk järnvägspersontrafik
This thesis examines the deregulation reform of the Swedish railroad industry, focusing on passenger transport between 1988 and 2005. The purpose of the thesis is to examine the effects from the deregulation reform on prices, market concentration and to determine whether SJ (the state owned incumbent) has been conducting strategic behaviour in order to prevent new entrants to the market. The chosen method consists of interviews with the MD at SJ between 1988 - 1998 Mr Karl-Erik Strand, the transportation researcher at SSE Mr Gunnar Alexandersson. Statistical sources and companies financial reports have also been used. The results that I have found were besides the fact that the market concentration is still significant high and the profitability among the operators low, is that the prices has increased more than CPI during the period but the competitive tendering has resulted in lower government subsidies after the deregulation.
Solel och solvärme ur LCC-perspektiv för ett passiv-flerbostadshus
This master?s degree project concerns the combination of a multi dwelling passive house with solar energy for the generation of electricity and domestic hot water (DHW). Different alternatives with either solar thermal systems or photovoltaic (PV) systems are compared with two reference alternatives producing DHW from electricity or district heating. The economical comparison uses a life cycle cost (LCC) perspective based on the present value of expenditures for investment, energy and annual operating and Maintenance.The energy yields from the solar energy systems were calculated by hand and with simulation software. Calculation and dimensioning of PV systems were carried out with a software called PVSYST.
Vilka faktorer medverkar till att professioner i primärvården förskriver fysisk aktivitet på recept (FaR)?
The aim was to study the factors that contributed to the prescription of physical activity on prescription (PaP) by the professions in primary healthcare. A qualitative method was used in the study. The sample consisted of six participants; two doctors, two physiotherapists and two district nurses in primary healthcare in Uppsala County. The data were collected with semi-structured interviews and were analyzed with a thematic approach. The results show a great variety in which type of patient that receive PaP, however people with lifestyle diseases such as diabetes, hypertension and obesity are often more represented.
Skarven : ? Produktutveckling av en oljedimavskiljare
This thesis is a product development project that was performed at Alfa Laval Tumba AB. In the past Alfa Laval have manufactured gas separators for engines where gas flows were cleaned from oil. A new business area for this kind of technology has shown to be the manufacturing industry where oil mist has to be separated from the vented air. Therefore a new and bigger design is needed to be able to handle the greater gas flows. A product like that would be a strong competitor on the market when the Maintenance would be low in comparison to today?s equipment.During the project several concept suggestions were developed using customer interviews and research as input.
Hinder och möjligheter för bibehållande av beteendeförändringar- En kvalitativ studie på en må bra förskola
The purposeof this study was to investigate whether preschool staff who participated in a previous health project retains the good behavior change, and to explore their perceived barriers and opportunities for this. The study was conducted on a "feel good" preschool and the selected population was preschool teachers and/or child minders. The selected method was qualitative, descriptive, and through the interviews the respondents got questions about their behavior changes and their experiences of this. The result of the survey showed that nearly all of the participants in the study had maintained the good behavior changes and most of them had implemented them in their lives. The obstacles that individuals perceived were mainly time constraints and the opportunities they saw were planning, motivation and positive experience.