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10077 Uppsatser om System usability scale - Sida 42 av 672

Social ångeststörning (SAD) och beteendeinhibering som barn ? en psykometrisk och jämförande studie

Social a?ngeststo?rning (SAD) a?r ett a?ngestsyndrom som orsakar stor funktionsnedsa?ttning och fo?rsa?mrad livskvalitet. I fo?religgande studie presenteras fo?rklaringsmodeller till SAD med fokus pa? temperamentsforskning och reinforcement sensitivity theory (RST). Syftet var att genom explorativ faktoranalys identifiera latenta variabler i fra?geformula?ret ?Hur man var som barn? (HMVSB), som administrerats i en klinisk population (n= 100) och i en kontrollgrupp (n= 246).

Förstudie för kvalitetssäkringav glidande förband vid Hissmoforsvattenkraftsstation : -Specifikt för aggregat G6 och G7

Jämtkraft AB which is a power production company in Sweden has bought two newhydro power units to their station in Hissmofors. The two new generators are using aconcept with sliding stator feet to handle the thermal expansion.The concept with sliding stator feet on hydro electric generators has not beenworking satisfactory on many hydro power stations in Sweden and has caused a lot ofcosts due to long downtimes.The new station in Hissmofors is very important for Jämtkraft AB, and therefore theywant to know how to make sure that the sliding stator feet are working as theyshould. According to theories and a simplified model of the generator the stator feetdisplacement should be around 1 -1,6 mm.The generators are delivered with a surveillance system that will measure thedisplacement of the sliding stator feet. The signal from the system isn?t accessible forJämtkraft AB but it will alarm when the sliding stator feet are malfunctioning.To secure the function of the sliding feet a logger for the surveillance system or adifferent measurement system must be used; if both systems are used Jämtkraft cansecure the function of the surveillance system..

Utvärdering av energieffektiviseringsåtgärder på Bokelundskolan i Växjö

The purpose with this report is to examine how the implemented energy efficiency measures on Bokelundskolan in Växjö have had impact on the energy use. The measures which have been implemented are, new ventilation system, new heating system, optimized adjustment of the heating system, new windows with U-value 1.2 and lower window height, insulation under windows and in the crawl space. The school's energy use before and after rebuilding has been calculated with the calculation program, Vip-Energy 1.5.5.Calculations of energy use for the school with windows on U-value, 0.9 and 0.7 have also been done. The replacement of windows has been studied from a cost perspective. The conclusion is that the exchange of heat and ventilation system was the biggest contributor to reduced energy use on Bokelundskolan.

Acne Jeans och Öresund: Hur förändras verksamhetsstyrningen i ett kreativt modeföretag när det inleder samarbete med ett riskkapitalbolag?

We have performed a case study on Acne Jeans, a creative Swedish fashion company, which initiated a cooperation with the Swedish venture capital firm Öresund. The aim of our paper was to examine what motivates a venture capital firm to transform the management control system of a creative company, into a more formal system of control. Main results: Öresund did not have an excessive impact on the management control system of Acne Jeans, due to three main reasons. First of all, Acne Jeans had a satisfactory management control system prior to the cooperation. Furthermore, the relationship between the two parties was characterized by mutual trust.

Materialvagnstransport

A clean and affordable energy source for cooking is deficient in developing countries. People rely on fuels that contribute to environmental, social and health problems.Biogas is an alternative energy source and an increased investment in small-scale biogas production can in several developing countries be found. Several projects have started to use the technology in developing countries because of the benefits with biogas. Some cases in the establishment of biogas plants have succeeded and some have not. The study is a literature review supplemented by two field studies.

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.

Risker i flera dimensioner : Om kopplingen mellan designmönstret MVC och projektrisker

The purpose of this project was to further develop and complete a quadcopter that had been built in an earlier course at KTH, so that it could be used for demonstration and education at the school. The quadcopter was at the beginning of the project completed when it came to hardware, and there was some software functionality implemented but no system for automatic stabilization. The main goal of the project was to implement such a system, and to combine it with the previous functionality to make the quadcopter operable and able to fly. To create a functioning and stable ground multiple basic software features has been implemented, and on top of that additional software to improve the safety, stability and functionality. The most important part is the control system that is responsible for converting sensor and control signals to suitable motor values.

Äldre texter - didaktik och motivation : Didaktisering av ett 1500-talsepos

Syftet med detta arbete är att undersöka huruvida vissa didaktiska tillvägagångssätt kan öka motivationen hos gymnasieelever inför studier av äldre texter samt i vilken utsträckning valfrihet och medbestämmande är viktigt inför arbetet med dessa. Könsrelaterade jämförelser görs. Tidigare forskning presenteras och en empirisk kvantitativ undersökning med enkäter genomförs, baserad på SCAS (Swedish Core Affect Scale) i reducerad form. Ett 1500-talsepos presenteras medelst olika didaktiska metoder för elever som löpande noterar graden av motivation på en niogradig skala bestående av adjektivpar.Studien visar att vissa didaktiska tillvägagångssätt ökar elevers motivation. Berättande samt rörliga bilder i kombination med tal och musik visar sig vara de mest stimulerande metoderna, gärna anknytning till universella teman och perspektiv.

Utvecklingsprojekt Easy Load

In order to increase the independence in everyday life of the elderly population, we have developed a lifting aid for loading in the private car trunk. Independence from outside assistance affects self-esteem in a positive direction and can help increase the quality of life for a large group of individuals. As people age and experience changes in performance, it is important that aids and support is available, particularly to reduce the experience of aging and it?s increasing physical limitations. The aim was to develop a function prototype characterized by simplicity, which facilitates loading of the private cartrunk.The project was conducted at the request of Autoadapt AB, which is one of the leadingactors in car adaptations for individuals with disablilities.

En analys av centralkylan i Slakthusområdet i Stockholm

In Stockholm, Johanneshov the Slaughterhouse area (Slakthusområdet) can be found. A number of companies have gathered there providing the Stockholmers with meat products. This area has a great need for cooling to supply large cold storages. To facilitate this, a central cooling system has been built, supplying the area with effective and safe cooling.The aim of this master thesis study is to give hints to energy efficient and reliable changes that can be put in place at a low marginal cost depending on the future activities in the area. The suggested changes will be presented to the company Bravida (managing the system), which also desires a deeper understanding of the energy flows through the central cooling system.Firstly visiting the site with proper guidance, we have then tried to understand the function of the system including which machines and media that are used.

Utformning av sättverktyg

A clean and affordable energy source for cooking is deficient in developing countries. People rely on fuels that contribute to environmental, social and health problems.Biogas is an alternative energy source and an increased investment in small-scale biogas production can in several developing countries be found. Several projects have started to use the technology in developing countries because of the benefits with biogas. Some cases in the establishment of biogas plants have succeeded and some have not. The study is a literature review supplemented by two field studies.

ARM i inbyggt system - med prototyp

Inbyggda system blir allt vanligare i dagens samhälle. De inbyggda systemen finns i nästan allt nuförtiden, från diverse fordon till leksaker för barn.Dagens teknik innebär bland annat att gårdagens lösningar kan realiseras på en bråkdel av den tidigare ytan. Allt mer blir ytmonterat med mindre och mer komplexa kretsar. Detta är inte alltid till utvecklarnas fördel då montering av prototypkort blir en svår och/eller dyr process.Målet är att ta fram ett inbyggt system med en ARM-processor. Systemet ska innehålla USB-OTG, ethernet, minne av olika slag som FRAM och microSD samt en display med pekskärm för användargränssnitt.

Är transportbeteende något att spela om? : -En studie om hur gamification kan stödja de transportpolitiska målen i Stockholmsregionen

The aim of this study is to examine the possibilities to use gamification to reach thepolitical goals for the transportation system in the Stockholm region. The study has aninterdisciplinary approach and is based around two main building blocks: gamificationand the transportation system in the Stockholm region. The first part examinesgamification. This includes contemporary use, debate, academic definition and aninvestigation of how gamified applications should be developed. One of the mainfindings is a suggestion that gamification should be seen as a process rather that a setof predefined game mechanics that can be applied to any activity.

Plasmodiophora brassicae ? host and environment interactions

In this thesis, three separate experiments have been performed on different aspects of the interaction between the causal agent of clubroot, Plasmodiophora brassicae, and its hosts. In the first experiment the pathotype of the P. brassicae single spore isolate, which is currently used to construct a reference genome, has been classified using the ECD bioassay. The disease severity of infected plants was scored according to two different scales and the pathotype was determined according to three previously published guidelines. The results were compared to previous published studies describing the e3 isolate. The life cycle of P. brassicae is not well understood.

Undersökning av Södra-transportörernas användande av KOLA-systemet

The purpose of this study was to create a picture of Södra´s round wood transporters usage, and positive or negative experiences of the KOLA-system. The KOLA-system, owned and managed by SDC, is a program for handling timber orders and displaying their locations on digital maps. The study was conducted as a twenty-three question internet-based survey. Of those asked to complete the survey, 57 percent chose to answer the questions. The results of the study indicated that several of the transporters found the system quite good and used it to a large extent. The system also had many deficiencies however, and there was clear potential for further increasing the usage of the system.

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