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5687 Uppsatser om Power quality - Sida 27 av 380
Kvalitet ... vad är det? : om staten och landstingets definition och användande av begreppet kvalitet i bidragsgivningsprocessen.
The concept of quality is difficult to identify clearly. Many attempts to define quality havebeen made, but the resulting definition remains vague.The quality concept (in the artistic sense) has since 1974 played a leading role in Swedishcultural policy. In the spring of 2009, a publication, named ?Kulturutredningen? waspublished. This report suggested a number of changes for the Swedish cultural policy.
Magnetfält alstrade kring nätstationer i samband med lokaldistribution av elkraft : Magnetic fields generated by electrical substations during distribution of electric power
Abstract: This report covers primarily the work of documenting electromagnetic fields generated by one of the later parts in the electrical power distribution chain: The electrical substation, wherein 10 kV is transformed to 400 V for use by private consumers. Thus it is one of the most widespread and frequently occurring parts in the Swedish power grid and of particular interest, as electrical substations are found everywhere in populated areas, often in close vicinity to people and animals.The report deals with a number of formulated questions and/or hypothesis? stated at the onset of the work undertaken, theory that is relevant for the topics the report covers, the details of the field work undertaken and the following analysis of the readings, which in term provide answers for the questions stated in the beginning. It also covers what is the currently known short term and long term risks associated with electromagnetic fields in the power frequent spectrum and of varying intensity in the vicinity of humans.The analysis also provides recommendations and identifies several points to carefully consider when planning for new installations or replacements of some parts of existing installations.For enhanced reading comprehension there is, aside from sections with pictures and attached explanatory texts and templates, several graphs, one-line diagram and maps of the power grid among the appendixes to the rapport..
Dynamisk simulering av avfallskraftvärmeverk
On a request from the water sewage plant Gryaab in Gothenburg a Power quality survey was performed. The voltages and currents have continuously been sampled in the incoming 10 kV substation HSP01 from April-August 2008. Power quality measurements were also performed in Gryaabs other 10 kV substation HSP04 fed from HSP01 and at the terminals of the induction motor IN_PU4040 of 1.3 MW which controls one of the four large inflow pumps to the plant. The reason for the latter measurement was due to registered negative transients each time the motor was connected to the grid. The cause of the transients could be explained by the coupling in the substation, the ageing of the motor which could result in damage of the bearings or resonance in the motor circuit which amplifies high frequency harmonics.
Användarcentrerad design för att förbättra rapporter i kvalitetsregister
In modern health care, the quality registry is anexcellent tool to monitor everyday work. Collected data forms a foundation, presented as online reports, from which local work efforts to refine care quality can be performed. All reports are coded manually by specially trained developers. This is a tedious process and hence becomes a bottleneck in the strive for improvement.This thesis evaluates whether an extended way of dealing with reports can fit into the existing work situation, with main focus on the idea of creating custom reports directly within a quality registry. It provides a set of conclusions regarding today's usage of reports as well as the users' general and specific needs within the area.
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.
"Den Andre" och skapandet av en identitet En teoretisk studie av begreppsliggandet av "den Andre" och dess påverkan på identitetskonstruktioner
The aim of this theoretical study is to explain how the notion of the Other and Otherness affect individuals possibilities to form multiple, personal identities. This is done by the use of the theory of the Other and the construction of identities. In my analysis I will be using the power perspective presented by Lukes. The purpose of my study is also to investigate whether a focus on similarity over difference between groups can change the situation for individualsMy study shows that otherness affect individuals identity constructions through stereotyping and categorising. This is made possible by the use of power from outside and inside different groupings.
Genus i Barnets Bästa : En jämförande studie av Förvaltningsrättens LVU-domar med fokus på barnets eget beteende
Background/aim: The purpose of this sociological study "Genus in the Child's Best Interest" was to, from the Administrative Court's decree about the child's own behavior, further clarify the concept of the child's best interest by studying how the concept is expressed in decrees with focus on genus.Theory: Three genus theories, to compare girls and boys, Mary John's power theory, the grown ups definition of what the reality is and what it should contain, and a labeling theory, where the people with power are the ones to define what's normal and what's not, have been used to analyze the result in this study.Method: A content analyses was used to analyze the decrees, with the focus on girls and boys between the ages of 12 to 19, where they have been forced into treatment by the law.Result: The concept of a child's best interest does make a difference between girls and boys in the decrees, and the girls have more power because they have more room to express themselves and are less responsible for their thoughts and actions. The concept is possible to use, but the definition is subjective and could be colored by the societies values and norms..
Rationell plattläggning. Studie av ett arbetsmoment
On a request from the water sewage plant Gryaab in Gothenburg a Power quality survey was performed. The voltages and currents have continuously been sampled in the incoming 10 kV substation HSP01 from April-August 2008. Power quality measurements were also performed in Gryaabs other 10 kV substation HSP04 fed from HSP01 and at the terminals of the induction motor IN_PU4040 of 1.3 MW which controls one of the four large inflow pumps to the plant. The reason for the latter measurement was due to registered negative transients each time the motor was connected to the grid. The cause of the transients could be explained by the coupling in the substation, the ageing of the motor which could result in damage of the bearings or resonance in the motor circuit which amplifies high frequency harmonics.
Energianalys av Vikan Kross och Asfalt
On a request from the water sewage plant Gryaab in Gothenburg a Power quality survey was performed. The voltages and currents have continuously been sampled in the incoming 10 kV substation HSP01 from April-August 2008. Power quality measurements were also performed in Gryaabs other 10 kV substation HSP04 fed from HSP01 and at the terminals of the induction motor IN_PU4040 of 1.3 MW which controls one of the four large inflow pumps to the plant. The reason for the latter measurement was due to registered negative transients each time the motor was connected to the grid. The cause of the transients could be explained by the coupling in the substation, the ageing of the motor which could result in damage of the bearings or resonance in the motor circuit which amplifies high frequency harmonics.
Prognostisering av höga grundvattennivåer med Chalmersmodellen
On a request from the water sewage plant Gryaab in Gothenburg a Power quality survey was performed. The voltages and currents have continuously been sampled in the incoming 10 kV substation HSP01 from April-August 2008. Power quality measurements were also performed in Gryaabs other 10 kV substation HSP04 fed from HSP01 and at the terminals of the induction motor IN_PU4040 of 1.3 MW which controls one of the four large inflow pumps to the plant. The reason for the latter measurement was due to registered negative transients each time the motor was connected to the grid. The cause of the transients could be explained by the coupling in the substation, the ageing of the motor which could result in damage of the bearings or resonance in the motor circuit which amplifies high frequency harmonics.
Kvalitetssäkring av efterinjektering. En fältstudie i Nygårdstunneln
On a request from the water sewage plant Gryaab in Gothenburg a Power quality survey was performed. The voltages and currents have continuously been sampled in the incoming 10 kV substation HSP01 from April-August 2008. Power quality measurements were also performed in Gryaabs other 10 kV substation HSP04 fed from HSP01 and at the terminals of the induction motor IN_PU4040 of 1.3 MW which controls one of the four large inflow pumps to the plant. The reason for the latter measurement was due to registered negative transients each time the motor was connected to the grid. The cause of the transients could be explained by the coupling in the substation, the ageing of the motor which could result in damage of the bearings or resonance in the motor circuit which amplifies high frequency harmonics.
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.
Svensk-Rysk gradmätningsexpedition på Spetsbergen 1898-1914 : Ekonomiska överväganden och förändrade attityder med aspekt på åren 1898, 1902 och 1914
This study concerns the complete oeuvre by the British author Helen Zahavi: Dirty Weekend (1991), True Romance (1994), and Donna and the Fatman (1998). Her novels are here read as a trilogy dealing with the dialectics of gender and violence in 20th century discourse, drawing on theories of how the construction of subjects is produced by power, of the relation between power and sexuality.The heroines of Zahavi?s novels try their best to move about in a world where their freedom of movement is limited to their female identity. In Dirty Weekend the protagonist tries to shoot her way out, claiming revenge on every man that is forcing himself upon her. She gains some freedom of movement by refusing subordination, but does not really change the order of power.
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.