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385 Uppsatser om Diurnal variations - Sida 3 av 26

Bookcrossing ? Ett äventyr! En fenomenografisk studie av bibliotekariers uppfattningar av bookcrossing

The purpose of this investigation is to study how librarians experience bookcrossing. We focused on the two following questions: Which variations are there in librarians conceptions of bookcrossing as literature exchange and reading support activity? Which variations are there in librarians conceptions of bookcrossing compared to other methods of literature exchange and reading support? Bookcrossing is an international book club where you share your books by leaving them at public places. The thesis is focused on librarians? conceptions and not the conceptions of members of bookcrossing.

Karaktärisering av hårdmetallpulvrets råvaror och dess påverkan på pulvrets flödesegenskaper

This thesis has been done at the powder department (GH) at AB Sandvik Coromant in Gimo. With a rheometer measurements has been made on raw materials and powder blends. The focus of this report has been to find correlations between raw material powders and press data, comparisons have also been made between raw materials and powder blends.The rheometer can show information of how a powder act in flow conditions, together with air and with pressure. Analyses has been done comparing the rheometer data with press parameters (for example: rejected orders, weight variations and the compaction pressure) with the goal to find correlations between the powders flow properties and the powders compaction in production.The measurements and analyses have been showing that the powder flow properties depends on the powders composition and that properties like flow rate, aeration and permeability varies between powder blends and batches of the same powder sort. It seems to exist a correlation between the pressure force and the flow rate of a raw material.

Medical Care : En jämförelse mellan kursinnehållet och dess utförande i Sverige och i Danmark som leder till ett internationellt certifikat i Medical Care

This thesis has been done at the powder department (GH) at AB Sandvik Coromant in Gimo. With a rheometer measurements has been made on raw materials and powder blends. The focus of this report has been to find correlations between raw material powders and press data, comparisons have also been made between raw materials and powder blends.The rheometer can show information of how a powder act in flow conditions, together with air and with pressure. Analyses has been done comparing the rheometer data with press parameters (for example: rejected orders, weight variations and the compaction pressure) with the goal to find correlations between the powders flow properties and the powders compaction in production.The measurements and analyses have been showing that the powder flow properties depends on the powders composition and that properties like flow rate, aeration and permeability varies between powder blends and batches of the same powder sort. It seems to exist a correlation between the pressure force and the flow rate of a raw material.

Markberedning med traktorgrävare, prestation och kostnad

This study investigated the performance and cost of scarification with a tractormounted excavator. Due to variations in terrain conditions the performance variedbetween 0.08 and 0.11 ha/E15h and, with a machine cost of 366 SEK/h, the cost ofscarification varied between 3 330 and 4 750 SEK/ha..

Frekvensreglering i det nordiska kraftsystemet

Svenska Kraftnät is (together with the other transmission system operators of the Nordic power system) responsible for keeping balance between the generated and demanded power in the Nordic power system. Spontaneous load variations and system disturbances, however, lead to power imbalance followed by frequency variations. The frequency deviations can be limited to an acceptable level by the spinning reserve, mainly by hydro power control. But there are also other system properties which have a great influence on the frequency and system stability. The frequency and voltage dependence of the loads have a direct influence on the power balance.

"Biblioteksplanen är ju faktiskt något av det viktigaste på biblioteket" : En studie i bibliotekariers uppfattningar av biblioteksplanens betydelse i arbetet

The purpose of this essay is to examine how librarians perceive library plans, if they are important for their work and if so, in what ways. In order to analyze this, I have used a phenomenographic approach. My goal, by using this method, is to uncover perceptions and variations among these. The research questions are: What variations of perception of library plans exist among librarians? To what extent can the varied perceptions of library plans be linked to librarians' work? What does the variation of perception say, in relation to the expectations expressed in international and national documents, about library plans? The material used in a phenomenographic analysis consists of interviews.

Betydelsen av skogsbruksplaner som verktyg vid anskaffning av virke

Forest management plans have been sold to private forest owners by wood supplying companies for a long time. These plans are considered to be effi-cient tools to identify measures and wood volumes, and are simply a starting point for discussions between private forest owners and round wood pur-chasers. However, large variations are observed between different purchas-ers, in their usage of the plans. The purpose of this report is to identify to what extent a forest management plan can promote an increase in the amount of wood which a round wood purchaser can obtain and to find differences in the way of using the plans between different wood purchasers. Furthermore, the purpose is also to ana-lyse if varying owner structures can be underlie variations in the selling of forest management plans. Qualitative interviews with nine of Stora Enso?s round wood purchasers were performed.

Finns det daglig variation i resistans i de nedre luftvägarna hos häst?

Among researchers it has been established since decades that humans and animals have an internal biological clock that controls certain physiological mechanisms. One example regarding humans is the impairment of lung function during the night, causing the phenomenon ?nocturnal asthma? among asthmatics. Only a few studies concerning respiratory circadian rhythm in horses have been done previously and they showed a daily variation in horses with a chronic or an acute respiratory disease. The technique used in those studies was the conventional technique, which is invasive and less sensitive than the technique used in this study.

"Eftersom det är en lagidrott förväntar sig spelarna att någon bestämmer" : En kartläggning av kunskaperna rörande träningsmetodik inom svensk pojkishockey

The purpose of this study was to examine social workers working process in social assistance with focus on the child´s perspective. We were interested in learning about the existence of variations in approach and attitude between two municipalities. Question to be answered about what methods and approaches used by social workers to include the child´s perspective in the process of social assistance. Another question to be answered about what the manner in which social workers took into account the child´s perspective when the families apply for social assistance in relation to the operations and requirement. To fulfill the purpose, qualitative methods were used.

Behaviours of wild male and female Colobus angolensis palliatus during morning and afternoon in Diani Beach, Kenya

Colobus angolensis palliatus is a small old world monkey inhabiting southern coastal Kenya to southern Tanzania. The species activity budget is known to vary between seasons and areas, probably due to differences in group sizes, diets, predatory presence and resource competition. The variations between male and female activity budgets are reckoned to be a result of pregnancy and lactation. The aim of this study was to investigate potential differences in behaviours between morning and afternoon periods and between males and females. The study was carried out in two forest fragments in Diani Beach on the south coast of Kenya.

Barnperspektiv : En kvalitativ studie om hur handläggare i två kommuner beaktar barnperspektivet inom ekonomiskt bistånd

The purpose of this study was to examine social workers working process in social assistance with focus on the child´s perspective. We were interested in learning about the existence of variations in approach and attitude between two municipalities. Question to be answered about what methods and approaches used by social workers to include the child´s perspective in the process of social assistance. Another question to be answered about what the manner in which social workers took into account the child´s perspective when the families apply for social assistance in relation to the operations and requirement. To fulfill the purpose, qualitative methods were used.

Förändringar av tårfilmens osmolaritet mellan morgon och kväll hos personer utan symptom på torra ögon

Syfte: Syftet med studien var att utvärdera om det fanns någon variation av tårfilmens osmolariet, morgon och kväll hos personer utan symptom av torra ögon.Metod: Tårfilmens osmolaritet mättes på totalt 30 patienter, två gånger på en dag; morgon och kväll. Mätningarna utfördes med TearLabTM osmolarity system. Både höger och vänster öga mättes på varje patient. Samtliga deltagande ombads fylla i en symptomenkät vid namn TERTC-DEQ. Endast personer utan symptom på torra ögon tilläts delta i studien.

Behandling av konfliktbestånd - problem och möjligheter :

Overdue cleanings have for a long time been an important topic of discussion within the forestry sector. When stands that have not been pre-commercially thinned are reaching the level of commercial thinning, many problems occur in terms of decision-making and economical outcomes. These types of stands are commonly known as conflict-stands. The work was carried out partly as an interview survey towards representatives from the forest sector and the energy sector, partly as a case study of conflict-stands situated in Böksholm, north of Växjö and in Tönnersjö east of Halmstad. The criteria for the studied stands were that they had to be dominated by Norway spruce and be in a severe status of ?conflict?. The aim of the interview was to get an overview of the situation today, and also analyse trends in terms of conflict stands.

"Spelar roll" : -En studie av Folksams kunders varumärkesuppfattning

Variations in fertility have caused a problematic situation in Sweden among other European countries. According to the Council of Europe we are facing an economic and demographic challenge, when the baby boomers of the 1940?s are retiring. Economists have for a long time studied the connection between economic factors and fertility, and several studies have found a correlation between business cycles and birth rates. This connection is again of current interest 2008, when a financial bubble bursts at the same time as a baby boom occurs.

Robotfotboll

SUMMARYInventory of raw materials holds an important role in companies within the manufacturingsector. The inventory works as a buffer that secure the supply of materials to the productionunit. The aim of the inventory is to ensure that the company is able to meet the customers?demands despite fluctuations and variations in the material flow. The size of the warehouseand the layout are physical limitations for the quantity of articles that can be stored.

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