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9968 Uppsatser om Time period - Sida 40 av 665
Energianvändning för markkonstruktioner förlagda med ytvärme : En teknisk och ekonomisk utredning av fördelarna med att isolera under värmerören
The need for snow-free surfaces at squares, bus stops, platforms, car parks and sports facilities increases and at the same time energy price rise and the environment is becoming a hotter issue. The construction of the ground heating systems often lack thermal insulation under the heating pipes, which means that the heat from the pipes not only warm up the soil surface but also heats the surrounding soil. The insulation also has more features, by insulating the risk of frost damage is minimized. The goal of this report is to demonstrate the large heat loss and energy costs in the absence of insulation under the heating system.The report begins with a scientific way to study and treating the soil heating system uses, and the theory involved. Furthermore it also deals with different routing principles of heat pipes depending on the facility.All calculations are made with so called finite element method (FEM), in COMSOL Multiphysics 3,5a, where models are created with different conditions.
Integrationsdiskurser i tidningar : en analys av fyra rikstäckande tidningar
This essay is about integration's discourses in newspapers. It compares four different newspapers with each other and it compares them also in a time perspective. The four different newspapers that the essay compares are Aftonbladet, Svenska Dagbladet, Dagens Nyheter and Expressen. These are Swedish newspapers and they are distributed all over the country. The time perspective is a two months period, one month in the year 1994 and one month in the year 2002.
Från miljövård till hållbart samhällsbyggande - Förändringar i den Svenska miljöpolitiska diskursen under perioden 1987 - 2005
The aim of this thesis is to study discursive change in the Swedish environmental political discourse between 1987-2005. The text of three Swedish budget propositions are analysed for this purpose.The results from the analysis are related to a few relevant theoretical perspectives that hold partly different views on what constitutes ?sustainable development? and ?ecological modernization?. Through these theories the thesis continues the discussion around the two central but somewhat blurry terms sustainable development and ecological modernization. The aim of this discussion is to conclude whether the discursive change in Swedish environmental politics can be said to go more in the direction of sustainable development or ecological modernization, or if elements of both perspectives can be found.The analysis shows that the Swedish environmental discourse has come to include more and more political fields such as general welfare politics, during the period.
Utveckling av erfarenhetsåterföring - I samarbete med AF Bygg Göteborg AB
This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.
Projekteringsfel. Hur påverkas byggandet av fel tillkomna i projekteringen?
This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.
Undersökning av linjespänning vid återmatande bromssystem i spårvagn M31
This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.
In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.
Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.
The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.
Skador på parkeringsdäck av betong. Skadeorsaker och reparationsåtgärder
This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.
Krypsättningar i lera ? en jämförelse mellan två datorprogram
This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.
Tiden, hälsan och familjen : En intervjustudie av tidsbrist och dess konsekvenser för hälsan
Aim and scientific issuesThe aim was to identify potential health risks, for full-time working parents with small children, caused by time shortage. The intention was to better understand and help this particularly time-pressured group in society to achieve a healthier lifestyle. The identification was built upon their own opinions about possible health risks and upon an interpretation of the health risks from a health promoter?s perspective.How do full-time working parents with young children handle time-shortage in a health perspective, specified in the categories: sleep, recovery, nutrition, physical activity, social health and mental health?What consequences for health does time?shortage have for full-time working parents with young children?What do parents with young children think could help them to obtain a better health in everyday life? MethodThe study was based on a literature overview and semi-structured interviews with 6 people who were strategically selected: the interview objects were all full-time working or studying, had one child under 7 and lived together with a partner. All interviews were recorded using two dictaphones and were implemented, transcribed and analyzed by both writers of this essay to increase the reliability of the results.ResultsTime shortage is shown to be handled especially through priorities in the respondent?s lives.
Vem är extremist? : En kvalitativ innehållsanalys av statens agglutination av högerextrema och vänsterautonoma grupper
This bachelor thesis is titled Who is an extremist? - A qualitative content analysis of the agglutination of right- and left-wing groups and is written by Måns Hoffsten within the discipline of political science. This essay aims to illuminate in which way the Swedish government has tackled extreme forms of left-wing and right-wing activism during the period 1980 ? 2013. By looking at how governmental policy-suggestions and reports concerning extremism are formulated during this period this essay explores when and how the two groups first started to become a part of the same problem-representation and on what premises this is built.
Introduktion av division för alla - en learning study i åk 3
My curiosity concerning what pupils read and write during leisure time led me to gather information using a quantative method. The study's aim is to investigate which reading and writing habits they have during their time outside school. A comparison was done of pupils at school year level 3 and level 4 in two different schools with the intention of investigating the influence of social background on reading and writing habits. 137 pupils filled in survey forms and thereafter the MYSTAT statistic program was used to process the information. The results point towards that the pupils read story books both more often and for a longer time than any other type of literature and that they read them often or very seldom.
Solvärme till Östersunds Rehabcentrums terapibad : Förstudie av förutsättningar för, - och lönsamhet med, solfångare för att värma terapibadet
This report treats whether it is viable to invest in solar heating to heat the therapy pool at Östersunds Rehabcentrum. The rehab center is owned by the county council of Jämtland and is located on Solliden in Östersund city. The solar heating where supposed to be a complement to the district heating that was heating the pool in the current situation. Later, it however showed that this was not the case. The pool is currently being heated by a radiator circuit that is being heated by the district heating.
Vad innebär planeringstid? : En kvalitativ studie om fyra förskollärares syn på den pedagogiska planeringen i förskolan
The running of a Swedish pre-school is not just about taking care of children but involves incorporating educational activities that follow curriculum guidelines. In addition, time must be allocated for planning, discussion, evaluation and reflection. Many pre-school teachers feel that there is insufficient planning time which is needed to follow the established curriculum guidelines for kindergarten. Due to the rising numbers of children per class, and the obligation to document and evaluate everything, pressure and lack of time has become a significant issue.The purpose of this study is to investigate four pre-school teachers´ views on pedagogical planning and reflection time. Questions to be answered include:1.
Åtgärdsprogram : En studie om lärares erfarenheter kring åtgärdsprogram
The purpose has been to investigate leisure-time centers actual work on children with attention deficit disorder. In addition, the study strives to make leisure-time centers way of working, in relation to their assignments, visible. The study has also compared how the leisure-time centers work and what the research says. The survey was conducted with the help of three exploratory interviews with pedagogues and three-piece observations at the leisure-time centers. It was carried out at three different schools in two counties in Sweden.The results of the survey show that the schools are trying to create clear procedures, though the centers succeed with this in varied degrees.
Elefantens könsorgan, reproduktion och embryoutveckling
Hydropericardium or pericardial effusion (PE) is the accumulation of fluid in the pericardial sac and is often secondary to pericardial diseases or diseases related to the heart. It is unusual with clinically relevant pericardial diseases in cats but pericardial effusion is the most common one.
Since PE causes serious symptoms and may lead to death it is important with a quick diagnosis and treatment. PE can be acute and cause cardiac tamponade, which gives severe clinical signs. Cardiac tamponade needs to be treated immediately or else the cat will die from cardiogenic chock. More common is chronic PE where the fluid accumulates during a longer period of time and the pericardial sac stretches.