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3598 Uppsatser om Fuel quality - Sida 19 av 240
Kan företag genom sin redovisningsinformation påverka volatiliteten i aktiekursen?: en studie av sambandet mellan informationskvalitet och risk
The purpose of this paper was to examine the potential presence of a relationship between the quality of corporate financial disclosure and the volatility in stock price in the Swedish market. This was carried out by investigating the hypothesis that an accurate annual report with high information quality results in a decrease in volatility. Previous studies have been done with this approach and in some cases the above stated hypothesis was found to be true. Thus, in the absence of a perfect efficient market the level of information quality may to some extent explain the volatility in stock price. However, the result of our study gave no evidence in support of this hypothesis.
Livsstilsförändringar och livskvalitet hos patienter med hjärt-kärlsjukdom : Litteraturstudie
Background:In Sweden and Northern Europe, cardiovascular disease mortality rates are high. The clinical picture in the Western world is dominated by lifestyle diseases in which individual behavior and attitudes have a significant impact on the health effect. In the society cardiovascular disease is seen as an illness factor and contribution to disability. Conditions for a good life are not only good health also factors such as intimate relationships and meaningful work which affect the person's quality of life.Aim:Lifestyle changes and quality of life for patients, regarding cardiovascular disease.Method:A literature review was made. Eight articles, quantitative and qualitative were analyzed.
Energikartläggning av avfallsförbränningen i Uppsala
Vattenfall Heat Uppsala runs the waste incineration plant in Uppsala, which produces district heating, process steam, district cooling and electricity. Vattenfall Heat Uppsala has decided to introduce an energy management system with the aim to increase the energy efficiency of the plant. The basis in such a system is to make an energy mapping.In this thesis an energy mapping has been performed at the waste incineration plant with the aim to identify and determine the size of energy flows. The investigated energy flows are used fuel, produced and used steam, produced district heating and cooling. Also the use of electricity to run the processes has been investigated.
Referensservice + Internet = Sant? Bibliotekariers tankar kring användandet av Internet under referensservicen.
The aim of this master thesis is to investigate the design of the reference service and its development that Internet has caused in college/university libraries when it comes to the service provided to the user. I want to examine the quality of this development from the view of the librarians, and also investigate their attitude and how they deal with this development.The following questions were asked:? How has Internet changed the reference service at college/university libraries?? How do the librarians look upon the possible change of quality in the reference service when the Internet is involved?? What attitude do the librarians hold toward this development where Internet is used in the reference service and how do they deal with it?The method used was qualitative interviews. A total of six librarians from Blekinge tekniska högskola, Halmstad högskola, Lunds universitet and Växjö universitet have been interviewed.The theories and models used were ?media richness?, a quality framework including ?quality aspects of a service?, and social psychology and its ?reasons for a positive/negative attitude on an organisations change?.The result shows that Internet has brought more sources of information and additional ways to contact the library.
Konvertering från direktverkande el i kommersiella lokaler : Ekonomisk och hållbar utveckling
Buildings worldwide account for 40 % of the total energy use. Climate change is of increasing importance, but few are willing to reduce their standard of living or get a higher cost for the change. Energy efficiency of existing buildings gives the greatest benefit economically and environmentally. The real estate company Klövern AB manages 46 properties in Karlstad. Heating is the major cost of the total operating costs of real estate. Rising energy prices increase the need for Klövern AB to improve energy efficiency and to investigate alternative sources of heat.
Strukturerad- kontra beteendeintervju : Skillnad i mängd och kvalitet på den information som erhålls vid anställningsintervjuer
According to Barclay (2001), behavioral interviews yield higher quality information, than other interview techniques. This study focused on whether the quality and quantity of information differ between structured interview and behavioral interviewing. Two headhunters held 16 job interviews with the two techniques, 9 behavioral interviews and 7 structured interviews. Both headhunters and candidates have evaluated the interviews quantitatively. Initial and concluding interviews have, as well, been held with the headhunters. No definitive answers were found in the quantitative analysis, but the qualitative results suggest that behavioral interviews give, because of the headhunters opinions, more and higher quality information.
Biogasprocessen : Bestämning av verkningsgrad
Biogas is increasingly used for fuel in for example vehicles and it´s produced in a biogas processconsisting of the steps of pretreatment, digestion and gas cleaning. The pretreatment is a method usedto increase the gas production and / or destroy pathogens. The digestion is the stage when anaerobicmicroorganisms convert bio-mass of a substrate to a raw gas containing about 65% of methane. Thegas cleaning is used to increase the methane content to about 97% so the gas can be used for motors invehicles. The biogas part of the Ekeby sewage plant in Eskilstuna is using multiple substrates.
Verktyg för lönsamhetsberäkningar vid bränslekonvertering av spetslastpannor från olja till pellets
This report summarizes the development of a calculation program estimating the profitability of converting a peak-load oil-fired boiler to pellets. To convert an oil-fired boiler to pellets a new fuel handling system must be designed. Changes also have to be made to some other components. Since there are many different techniques for transportation, storage and treatment of the fuel only the most interesting techniques from Swecos experience and interest were included in the study.The capacity of the different parts in the system was dimensioned based on the power of the boiler after conversion. To estimate prices, installed power and dimensions manufacturers and distributers were contacted.
Experience of quality of life among women who have undergone breast reconstruction after mastectomy
Background: In Sweden around 6500 women suffer each year from breast cancer and during lifetime every tenth women is affected. Mastectomy (removal of part of or the whole breast) is carried out mostly in purpose to remove malign tumours or in prophylactic purpose. The breast can be rebuilt through breast reconstruction. Method: The result analysis was based on nine articles. A Manifest content analysis was used and data from the articles where divided into themes and patterns, on the basis of these categories were created.
Implementation of a quality management system in food production
The aim of this study was to investigate how the process of implementing a quality management system for food safety was handled in four different food producing companies in Sweden. The aim was also to analyze what difficulties the companies face and the possibilities that arise when certified. Furthermore, the reason for implementation was discussed as well as the main expectations on the certificate. Implementing a quality management system is a good way of ensuring the quality and hygiene of the food production and it also increases the traceability of food products through the whole food chain. A food safety standard provides a method of preventing problems and crisis and it can also help to handle requirements from authorities, the market and others.
Perifert kärlsjuka patienters erfarenheter av vårdkvalitet i samband med dagkirurgisk behandling
The aim of this study was to describe peripheral vascular patients´experiences of quality of care in connection whith ambulatory care, and to identify if ambulatory treatment responded to patients´expectations..
Hälsorelaterad livskvalitet hos partner till personer med afasi : En undersökning baserad på hälsoenkäten SF-36 och semistrukturerade intervjuer
Around 30,000 people in Sweden suffer stroke every year, out of which about 12,000 end up with language difficulties, aphasia. Behind every person with aphasia there are significant others whose lives are also affected. Studies of how aphasia affects the health of these people are few. The overall aim of the present study was to examine how significant others of people with aphasia perceive their life situation, and how their quality of life is affected by the illness of their partner. Spouses of people with aphasia were contacted through aphasia groups and the Swedish Aphasia Association.
Den interna marknadsföringens påverkan på tjänstekvaliteten: en fallstudie av två säsongsbaserade hotell
The purpose of this thesis was to study how internal marketing affects service quality in the tourism industry. It was decided to conduct a case study on two hotels with summer seasonal employees. Pite Havsbad and Strand Hotell Borgholm were chosen as study objects. The case was based on interviews with the hotel manager at Pite Havsbad and the vice president at Strand Hotell Borgholm, who coordinates the internal marketing at the companies. The findings were that seasonal employees do not affect service quality much.
Studie av belagda kolvringarmot plasmasprutat cylinderfoder : Med avseende på friktion och nötningsmotstånd
Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.
Timmerkvalitet hos björk i blandskog med gran
Birch is the dominant deciduous tree species in Sweden but only 16 % is found in pure birch stands. The majority of the birch (51 %) is to be found in conifer dominated stands. Swedish forest land comprises approximately of 23 % mixed stands and one problem is that for mixed stands there are few management recommendations. The underlying aim of this thesis was to study the management of mixed forest stands of spruce and birch to achieve good timber quality of birch. The study was based on a literature study and measurement in a field experiment launched in 1998 by the Swedish University of Agricultural Sciences (SLU).