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6095 Uppsatser om High-performance concrete - Sida 50 av 407
Mät och loggningsutrustning för spänningstransienter.
To be able to measure high-surge voltages and transients with short rise times youneed measuring instruments with a high sampling frequency and large Bandwidth.These surges and transients occur primarily at lightning but can also occur at forexample at connecting errors at an electrical switch-gear. This report describes thework with finding two solutions for measuring and log data from these surges andtransients. One temporary solution where a measurement program has beendeveloped. A second solution where different company solutions have been analyzedto decide which fits best. For these measurement solutions two solutions for bringingdown the voltage has been used.
IKT i mellanstadiet : En kvalitativ studie av skolledares syn på sin roll i integrering av IKT i undervisningen
The overall purpose of this essay is to come to a deeper understanding about videos in the Youtube beauty community by using a mixture of qualitative and quantitative methods. By answering the main questions of the essay which are; What quantitatively measurable components are there in the videos that can be seen as contributing factors leading to the fact that some generate more views that others?; Is there a set mold for success containing certain aspects that a video must have to stand out?; What correlations can be found between the two categories of analysis and how do these potential correlations affect the popularity of the video? and What effects do specific components on the level of popularity of the video?, we?ve been able to distinguish differences as well as similarities on both qualitative and quantitative levels. We have also seen that using the two methods together have enabled us to reach more profound results. The main result that we have found on a quantitative level is that there are obvious correlations between a high level of popularity and a good visual quality.
Medarbetarsamtalssystemet - forum för delaktighet, kommunikation och lärande?
The purpose of this study is to describe how the employee appraisal is perceived by managers, employees and representatives from human resources departments. The empirical material con-sists of 15 interviews: respondents were two representatives of the human resources departments, four unit managers and nine employees who work at a state institution or municipal management. In the study, I adopt a sociocultural perspective, with the communicative relational perspective. The latter is a special education perspective in which the interpenetration of participation, com-munication and learning emphasized.The result shows that the majority of employees would like to see that the talks will be held more frequently than once a year. One of the managers has in cooperation with his co-workers devel-oped a model based on that each year, in addition to salary talks, have an individual conversation, a conversation with each group and individual follow-up talks.
Composition of fractions from air-classified wheat flour
The unique ability of wheat to produce leavened bread is mainly due to the gluten proteins present. As consumers are more and more attracted to bread with high fibre content the use of wheat gluten will also increase in order to obtain bread with good volume and appetizing characteristics. Air-classification is a technological method used to separate particles by size and shape by means of air-streams into two fractions, fine and coarse. When used on wheat flour it is known to alter the flour composition in the fractions obtained compared to the original flour. This method is not widely used in the milling industry but could possibly be of interest if protein rich fractions with favorable protein quality can be produced.
En annan värld? En analys av sex fantasyromaner ur ett genusperspektiv
The aim of this Master?s thesis is to examine how the gender system is described in fantasy novels. The theoretical framework is based on Yvonne Hirdman?s theory on gender system, primarily the two basic principles: the principle of dichotomy, of separation between the sexes, and the principle of hierarchy, of man as norm. The method used is idea analysis which is a form of textual analysis.
BIM i förvaltningsskedet - Nyttan för fastighetsägare
The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.
Ansvar eller lönsamhet - En studie av Svenska Spel och Systembolaget
This paper examines Systembolaget and Svenska Spel, two Swedish state-owned enterprises, both functioning as monopolies. Systembolaget is the state owned monopoly for marketing of alcoholic beverages. Svenska Spel is the state owned gaming operator. Svenska Spel's task is to provide citizens with gaming products. Both companies are expected to market their products and services while taking caution and minimize damages, but are also supposed to deliver various degrees of economic revenue.
Tätning eller ventilering mot fukt på kalla vindsutrymmen
This study was done regarding whether sealing or ventilation is the best solution to prevent moisture on cold attics. The authors of this report addressed the problem with moisture in attics when they started their cooperation with Peab.The methods included interviews with people, database research, and calculations of a project in Akersberga north of Stockholm. The conclusion is based on interviews and other information as they are analyzed in relation to the house of reference. The focus of this report is on problems with moisture in the attics known as cold attics.The background of the problem with moisture is that today?s slabs are usually insulated to save energy and that the attics nearly gives the climate as the outdoor climate.
Fyra uppdrag om människokroppen för grundskolans senare år
Recent studies show that the knowledge in and understanding of science, technology andmathematics of Swedish junior high school and high school students is decreasing. As a resultof this the Swedish government has initialized several studies, research and reforms. One ofthe theories for teaching that today is seen as effective is the socio-cultural perspective and itsdescendants, including scientific inquiry. Using the pedagogy of the socio-cultural perspectivefour assignments regarding the human body was constructed for junior high school studentsattending summer research school in the summer of 2008, hosted by AstraZeneca. Theassignments follow a structure (goal of assignment, preparations, experiment and follow-up)inspired by the concept of NTA ? Naturvetenskap och Teknik för Alla (Science andTechnology for everyone).
Att tolka som barn : En kvalitativ studie om vuxnas mäns upplevelser av att under sin uppväxt ha fått tolka åt sina föräldrar
The purpose of this study was to within a Swedish context and from five persons of foreign descent stories study how they have been affected by interpreting for their parents during their childhood and how this has affected the relationships within the family. Studies conducted in an American context have shown that children interpreting for their parents in everyday situations are prone to undertake roles similar of a family leader. Previous studies also show an increased danger of depression among children who interpreted for their parents. The study was conducted by the use of semi-structured interviews with five male respondents with a varying ethnic background. Using Antonovsky´s theoretical formulation ?sense of coherence? we were able to determine that although our respondents during their childhood were subjected to a large amount of stressful elements they also maintained a high sense of well-being.
Mjölkureahalten som mått på vommikrobernas kväveförsörjning och kons miljöbelastning
The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content are also addressed. Dairy cattle are today fed with large proportions of protein which could lead to high expenditure of feed and environmental pollutions. The nitrogen can be lost to the environment by different pathways; leaching, denitrification or by emission to the air.
Mjölkureahalten som mått på vom-mikrobernas kväveförsörjning och kons miljöbelastning
The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content are also addressed. Dairy cattle are today fed with large proportions of protein which could lead to high expenditure of feed and environmental pollutions. The nitrogen can be lost to the environment by different pathways; leaching, denitrification or by emission to the air.
Den fysiska miljöns betydelse för val och utförande av fritidsaktiviteter Fyra synskadade personers upplevelser
Syftet med uppsatsen var att undersöka synskadade personers upplevelser av hur den fysiska miljön påverkar val och utförande av fritidsaktiviteter. Fyra synskadade personer i arbetsför ålder deltog i studien. Intervjuer utan standardiserat frågeformulär användes som metod. Materialet klassificerades först utifrån de fyra miljöer som beskrivs i Canadian Model of Occupational Performance (CMOP). Där efter klassificerades materialet utifrån indelningen av fritidsaktiviteter enligt Canadian Occupational Performance Measure (COPM).
Plusenergi och dess installationer : Kvarter Trettondagen
The latest thing in the area of environmental building today is energy-plus-house. The idea behind the energy-plus-house is to create a house that produces more energy than it consumes. To accomplish this, the house uses renewable energy, in this particular case solar energy. With the help from a proper construction and thoughtfully projected installations you can achieve a surplus of energy. The surplus energy can then be sold to the surrounding buildings and thereby conduce to a financial profit for the household.
Initial prövning av innehållsvaliditet och användbarhet för bedömningsinstrumentet Assessment of Work Performance : Försäkringskassan (AWP-FK)
Försäkringskassan (FK) har fått i uppdrag av regeringen att vidareutveckla bedömningsförfarandet för sjukskrivna i Sverige. Som en del i detta har bland annat ett nytt bedömningsinstrument tagits fram för att användas vid arbetsterapeutisk kompletterande bedömning av medicinska förutsättningar för arbete. Instrumentet bygger på det redan befintliga bedömningsinstrumentet Assessment of Work Performance (AWP), med tre utvalda arbetsuppgifter och kallas för AWP-FK. Syftet med den här studien var att göra en initial prövning av AWP-FK med fokus på innehållsvaliditet och användbarhet. Som metod användes kvalitativa telefonintervjuer med nio arbetsterapeuter som ingick i Försäkringskassans pilotstudie.