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2569 Uppsatser om THERMAL EFFECT - Sida 41 av 172
Utvärdering av befintliga passivhus : En byggnadsfysikalisk bedömning och mätningar om temperatur, och fukt analys på ytterväggarna
Energy price are on the way up to a high level that will not diminish in the future make us to focus more on the sustainable development for a better solution of residential houses. Passive house or low energy housing are one of the solution to make residential more environment friendly, in same time it´s a financial security using less energy, and saving money. The last 10 years in Germany and all around Europe the concept of passive house been developed, and people aim to know more about these concept that leading the market more attractive for passive houses. A passive house is a well designed building highly insulated and air tight with mechanical ventilated system for the whole building envelope that minimizes the use of energy for heating [1].The housing company Mimer has chosen to invest in low energy consumption in every new housing project. These future plan projects are decided to use less than 75 kwh per square meter annually in purchased energy [2].This thesis is about new constructed passive houses, and focuses on the evaluations of the temperature, and moisture condition for attic, external walls and joist.
På seglats i själens djup - en studie av droginducerade mystika tillstånd och erfarenheter
The use of hallucinogenic plants has throughout human history been used for religiouspurposes, in order to induce mystical states of mind, often interpreted as meeting with godsand spirits. In recent years, this practice has been taken up by people interested in theexploration of their psyche and spiritual side. This group of people, referred to as?psychonauts?, communicate with each other through internet based forum, where theyshare their experiences in so called ?trip reports?. The aim of this study was to see whatrole psychedelic drugs can play when used in a spiritual/religious context, and whetherthese sorts of mystical states of mind could tell us about more traditional mysticalexperiences.
Utvärdering av möjligheten att tillvarata energi ur processvatten : En undersökning gjort vid Olofsfors AB på uppdrag av UMIA AB.
The company Olofsfors AB manufactures drive belts for forest machinery, known as ECO-Tracks, and abrasion-resistant steel and cutting edges for graders, excavators and tractors, known as Bruxite and SharqEdges. Manufacturing these products requires the steel to be heated and molded, then submerged in water and hardened. The water used in the hardening of steel is pumped to the process from pits below the floor and then pumped back to the pit after it?s been used. Since the temperature of this water rises after being used to harden the steel the temperature of the pumping pit needs to be adjusted to maintain its setpoint of 21°C.
Kan D-vitamintillskott minska depressiva symtom?
Background: Sweden is a country where vitamin D deficiency seems to be common, partly because of its geographical position, which reduces the availability of UVB radiation, but also that people avoid sunlight due to increased skin cancer risk. Research shows that vitamin D plays an important role in the prevention of many diseases such as cancer as well as autoimmune and neuropsychiatric diseases.Vitamin D is a fat soluble pre-hormone and a collective name for closely related compounds which act as hormones after undergoing a transformation in the body.Humans can utilize vitamin D through diet and produce it in the body by exposing the skin to the sun. Previous observational studies and epidemiological studies have established a hypothesis that there seems to be an association between vitamin D supplementation and reduction of depressive symptoms.Objective: The aim of this study was to investigate if vitamin D supplements may decrease depressive symptoms.Methods: This work is organized as a literature review and article search is made in the database PubMed in January 2012. Keywords used were ?vitamin D and depression? and inclusion criteria were: randomized clinical trials, be conducted on humans, written in English.
Uppgradering av automatisk teststation
The climate changes that are occuring in the world have resulted in that the EU callingfor a 20 % reduction in energy consumption to the year 2020, to reach that goal theEU want the public sector to go forth as a good example. Västfastigheter owns andmanage the hospital buildings in the Västra Götaland region. To be able to reducetheir energy usage Västfastigheter has hired several consulting firms to chart out theenergy consumption on each hospital building. The biggest energy savings potentialhave been calculated and what the cost will be to perform each action. The energyaudit have been completed and stand as the decision basis for Västfastigheter?s choiceon which action packages that should be implemented.
Kan evidensbaserad design användas i upprustningen av miljonprogrammet?
Between 1965 and 1975 a major housing project was carried out in Sweden to resolve a major housing crisis, the so-called one million housing program (Swedish: miljonprogrammet). To raise the standards and create a more attractive housing in these areas is currently a very relevant topic in Sweden.Evidence-based design is the process of basing decisions of the built environment on credible research and studies to achieve the best possible outcome. This method is primarily used in the healthcare sector to improve quality of care and reduce costs by creating healthy environments.The possibility of refurbish apartment buildings from miljonprogrammet using evidence-based design has been studied by means of an extensive literature review and a closer examination of the residential area, Husby in Stockholm, which has been chosen to represent the miljonprogrammet in its entirety. Furthermore, the evidence-based research has been limited to seven fields; nature, noise, color, wayfinding, safe environment, daylight and thermal comfort which has been assessed to be applicable on housing. In order to obtain a comprehensive overview of the different fields, four different subjects were chosen to investigate further within each field; research and studies, laws and regulations, constructional aspect and Husby.
Hon, han eller hen? : Elevers tolkningar av könsneutrala barnbokskaraktärer
The main purpose is to investigate the main fea-tures of the discourse in the social medias about the legal view on cimes and criminals. The special questions that are investigated are:1) What specific features characterize the discourse in the social medias?2) What are the legal restrictions for the freedom of speech on the Internet?3) What attitudes can you find among lawyers towards the discourse in the social medias?4) Are there grounds for presuming that the discourse in the social medias can effect the judgement in a special case? .
Kan fysisk aktivitet förebygga Alzheimers sjukdom? En litteraturbaserad studie.
Introduction: We are facing an aging population, which means that the incidence of age related diseases, such as Alzheimer's disease, are expected to increase. In the current situation there is no cure for the disease, whereupon it is important to develop preventive strategies. Objective: To examine the association between Alzheimer's disease and physical activity. Method: A systematic literature search was done to identify the current state of knowledge from the year 2006 onwards. The reason for this limitation was that the SBU commissioned a systematic literature review in 2006, where the relationship between physical activity and Alzheimer's disease could not be determined.
Line?extensions; A longitudinal study concerning effects on brand equity
Thesis purposeThe study aims to examine the effects vertical and horizontal line extensions might have on the total parent brand equity in terms of strength and its baseline product regarding of market share, loyalty and penetration under an elapsed period of time. The study aims to investigate a number of actual conducted line extensions effect on the above mentioned aspects of Kellers (1993) definition of brand strength as a part of the total brand equity. MethodologyThe effect of a number of line extensions of the parent brands and the baseline products is being examined in terms of market share, loyalty rate, cannibalization and market penetration. The thesis is focused on the correlations between these different parameters during a certain elapsed time ratio in order to test our theoretically routed hypothesizes in a deductive manner. Occasional correlations are derived from an indexation of data collected from the Gfk database.
Projekteringsförslag för JM AB av fastighet 3:2 i Bukärr, Särö
The climate changes that are occuring in the world have resulted in that the EU callingfor a 20 % reduction in energy consumption to the year 2020, to reach that goal theEU want the public sector to go forth as a good example. Västfastigheter owns andmanage the hospital buildings in the Västra Götaland region. To be able to reducetheir energy usage Västfastigheter has hired several consulting firms to chart out theenergy consumption on each hospital building. The biggest energy savings potentialhave been calculated and what the cost will be to perform each action. The energyaudit have been completed and stand as the decision basis for Västfastigheter?s choiceon which action packages that should be implemented.
Köldbryggors inverkan på isoleringsegenskaper för sandwichelement : Anslutning mellan fönster och yttervägg
I dagens läge har energifrågorna väckt ett stort intresse i samhället. Nu fokuseras det mer på att bygga energisnålare hus. En betydande faktor som påverkar energiförbrukningen i våra hus är köldbryggor. De uppstår då ett material med dålig värmeisolering bryter igenom ett material med bättre värmeisolering. Köldbryggor är nästan omöjligt att undvika, dock går alltid att reducera.
VD-bytets påverkan på aktiekursen : En studie ur ett genusperspektiv
In the last decades the Swedish labor market has been characterized by a stereotype perception on women?s role and position on the market. The perception speaks of the characteristics of female leadership as being less qualified causing the gaps between the two genders to transform into a gender segregated society. The historically slow progress has limited the career opportunities for women to reach top management. However the increasing discussions during the 21st century on how to reduce the gender differences in the labor market has made it more acceptable with women on higher positions.
Implementering av 1D-DCT
IDCT (Inverse Discrete Cosine Transform) is a common algorithm being used with image and sound decompression. The algorithm is a Fourier related transform which can occur in many different types like, one-dimensional, two-dimensional, three-dimensional and many more.The goal with this thesis is to create a fast and low effect version of two-dimensional IDCT algorithm, where techniques as multiple-constant multiplication and subexpression sharing plus bit-serial and bit-parallel arithmetic are used.The result is a hardware implementation with power consumption at 19,56 mW..
Simulering av översvämningar i Byälven
Severe floods caused by heavy autumn rains in year 2000 raised the question whether measures to reduce the damage from high water levels, in the area surrounding lake Glafsfjorden and along the river Byälven down to lake Vänern, are possible. One option is to reduce flow resistance along the river and thereby lower the maximum water level a given inflow would cause. Good knowledge of hydraulic and hydrological conditions is necessary in order to estimate the effect of such flow-reducing measures. In order to quantify such effect a 1-dimensional hydraulic flow model has been set up for the river Byälven using the software package MIKE 11. The model is more detailed, especially concerning topography and bathymetry, than earlier models used for studies of the river.
Vilka statsfinansiella effekter erhålls vid ökad produktion av förnybar energi?
BackgroundThis paper is based on an issue raised by the organization Energigas Sverige, which together with the Ministry of Finance has posed the question about the fiscal impact of an increase in biogas production. Since the fiscal effects of an increased biogas production are both positive and negative, due to reduced use of fossil fuels, we want to investigate this further.PurposeThe purpose is to describe and explain the obtained fiscal impacts of an increased biogas production and based on our problem: ?What are the obtained fiscal effects caused by an increase in biogas production?? we could see the following fiscal effects: positive impact on employment, increased revenues of social security contributions and income taxes, reduced unemployment costs and reduced tax revenues on fossil fuels. These effects are summarized in a negative tax revenue of 2,6 billion SEK. Along the summarized negative effect we also accepted one of the two prepared hypotheses, which stated that an increase in biogas production leads to a negative fiscal impact. Design/Methodology/ApproachWe have chosen to work from an Anglo-Saxon scientific tradition and furthermore, we have a positivistic approach when we want to explain the relationship between cause and effect of an increase in biogas production and the following fiscal impacts.