Sökresultat:
1326 Uppsatser om Load characteristics - Sida 17 av 89
Avspecialisering som framgångskoncept för jämnare arbetsfördelning?
The application of the LSS law and how the public organization (Municipality of Hudiksvall) later had to reform their organization to fit the new demands is the foundation to this master's thesis. An internal evaluation was performed due to this reorganisation process within the social care department (LSS unit). The aim was to investigate and evaluate if the reorganization resulted in a better working environment and if the work load (distribution of work) became more evenly divided between the different unit managing directors. The primary empirical information to this master's thesis is collected from that evaluation report. The main aim of this master?s thesis is to answer if the organisational choice between specialised or de-specialised working tasks has an effect (experienced and measured) on the level of stress among the unit managing directors.
Kartläggning av spånprodukter vid Sävar såg
A change towards using more biofuels than fossil fuels is taking place in Sweden, and in many other parts of the world. This makes the use of fuel pellets increasingly popular, causing a greater demand for sawmill sawdust products. There is a trend towards the use of multiple types of shredders, instead of a single type in each sawmill. The purpose of the study was to characterize the different flows of saw particles that can be found at Sävar såg when cutting thick or thin wood with different cutting techniques. The saw particles size, shape, moisture content and heat value were analysed by the cutting stations: first cutting fast and slow, second cutting fast and slow, grading fast and slow and planning.
"en labyrint av vägar" : en kvantitativ och språkfilosofisk studie av taggar och taggstruktur i Stockholms stadsbiblioteks folksonomi
The purpose of this study is to perform both a quantitative and language philosophical analysis of the folksono-my and the tags in the Stockholm public library catalogue, which together with the Umeå university folksonomy, and the folksonomy of the Norrköping public library are the only library folksonomies in Sweden.The purpose of the first part of the study is to perform an analysis of the linguistical structure of the tags in the folksonomy. To do this a quantitative analysis has been conducted to grammatically categorize and evaluate tags using a method based on Louise Spiteri?s article ?The structure and form of folksonomy tags: the road to the public library catalogue? and the SAO guidelines. This part of the analysis aims to answer questions like: what characteristics do the tags in the folksonomy have and in what ways do they separate themselves from subject headings in a controlled vocabulary? Tags were here categorized according to grammatical properties like parts of speech and their social and private characteristics.
Bland smuts och andligt förfall : Svenska Missionsförbundets Kina kring sekelskiftet 1900
The purpose with this thesis is to analyse the image of the Chinese that was constructed and maintained in the materials published in association to the Swedish Mission Covenant Church (SMF) missionary work in China between the years of 1890 to 1914.The analysed material is mainly from the periodical Missionsförbundet, the analyse also include various books, biographies and anthologies. Inspired by Michel Foucault I found my methodological starting point in his discourse term. Frome there, by the help of the texts of Torjer A. Olsen, I constructed a discourse analyses, by which I analysed my materials.The survey showed that the material associated to SMF foremost constructed a negative pictureof the Chinese as unclean, conservative, arrogant, liars, greedy, loud, bad singers and that the woman situation was seen as untenable. A more appreciative picture also emerged and the Chinese was described as polite and strong.
Kylapotentialen i Drefviken för Vattenfall Heat AB
Vattenfall Heat AB is a district heat provider in Drefviken, but has yet to establish any cooling systems in this area. This thesis examines the potential client base within the area today and over the coming 20 years. The feasibility of the most common cooling technologies is evaluated and results show a total potential for an installed capacity of 30 MW providing 50 GWh of cooling per year. One of the examined areas shows good prospect for heat driven absorption chillers during the summer months when the heat load is limited..
Diagnostisering av projekt : En studie med utgångspunkt från SPA-ramverket
The work in project has been around since humans began to hunt in groups, building bridges or building of the Great Wall of China. In 1960- and 70´s, the word project got their value it has today. A project means a work done during a decided time, with decided economy and non-recurring nature (Jansson and Ljung 2004). The projects had a general analytical model. It was used for all projects the organization engaged.
Näringsretention i återskapad våtmark på betesmark : studier av en mad vid Bornsjön
It is important to construct or recreate different types of wetlands and study their retention of nutrients, since knowledge of their effectiveness in this matter is poor. In 2003 a wetland was constructed on an old meadow on the western shore of Lake Bornsjön in central Sweden. The main purpose of the wetland was to reduce the amount of phosphorus entering the lake, which is the back-up water supply for Stockholm when the city cannot obtain water from Lake Mälaren. Large areas around Lake Bornsjön consist of agricultural land and the nutrient concentrations in the inflows to the lake are usually relatively high (approx. 1 mg/l total nitrogen and 0.05-0.1 mg/l total phosphorus).
Är det slumpen som avgör? : Vad styr socialarbetarens val av institution vid placering av ungdomar?
The purpose of this study was investigating the means which rule the social worker?s choice of institution placing youths and how they match the youth?s individual need compared with the type of home. The questions were: Which significance has the characteristics of the youth and their family for the placing? Which significance has the characteristics of the institution? Which significance has the social workers? way of working, investigation, theories, economy etc.? A qualitative way of interviewing has been used. Eight interviews were done; six with social welfare secretaries who place youths and two social workers who work with counselling and placement.
Metodik för utmattningsberäkning av svets i vibrationsmiljö
In this work, a method was developed and evaluated for calculating the life of welds under the influence of fatigue loads from a vibration environment. Typically, a shaker table is used for testing a component against vibration loads. The shaker table creates a vibration environment that is defined in the frequency domain by a power spectrum.Similarly, a virtual vibration table can be used to calculate the same type of load environment, which can then be used to calculate the expected lifetime. The benefit of this method is that it can be used in design, as well as in simulation of tests before physical verification tests are carried out.Today there are methods for calculating fatigue life of non-welded base material, but since many components contain welded joints, there is a need to apply this method to those types as well. To achieve this, the thesis combines two different areas, which together provide a method for fatigue assessment of welds using a virtual shaker table.The methodology is carried out by modeling the component, and its welded joints, in a finite element program.
Direct-EGR tillämpat på HCCI
The Homogeneous Charge Compression Ignition (HCCI) engine is promising in terms of lowNOx, low particulates and high efficiency. Due to its homogeneous charge, where thecombustion starts almost simultaneously from a number of points in the combustion chamber,only lean mixtures are possible to burn because of the resulting rapid combustion, which is muchfaster than the combustion in an SI-engine or a diesel engine. When richer mixtures are used thecombustion will start earlier and also be more violent.To phase the combustion later and lower the combustion speed, external cooled EGR can beused. The EGR-system used in this thesis uses a divided exhaust channel where one channel andits corresponding valve are used only for transporting EGR back to the intake system.Consequently the EGR-valve is connected to the intake pressure. This system is called Direct-EGR (D-EGR).Engine tests verified that the CA50 indeed is phased later when cooled EGR is used.
Ståndortsanpassning och produktionspotential för björk i Gävleborgs län
Large amounts of birch-timber are imported to Sweden, from particularly the Baltic States, since the domestic production can?t support the pulp industry. The goal of this study was to show the potential of birch and the area?s most suitable for birch production. The study was limited to Gävleborg County.
Using site characteristics, site index (SI) for birch was estimated on all National Forest Inventory plots in Gävleborg County.
Självgående fordon hos Sandvik do Brasil
At the plant of Sandvik do Brasil in São Paulo there is a need for improving the transport of inserts between the plant building and the stock building. The idea is to install a system with an Automated Guided Vehicle (AGV) to take care of this transportation. The purpose of this report is to present which demands there are on the system and to find the best solution according to the demands.To conclude this work a study was made of the plant and the AGV technology was examined. Several providers of AGV solutions were contacted to get information about prices and detailed solutions.The conclusion was that the most suitable system for this application is a small unit load vehicle using inductive wire as guiding system..
På resa genom turistbroschyrernas Småland
The purpose of this study is to analyze how places can be marketed through tourism brochures. The study is based on a discourse analysis and texts and pictures from three brochures, which come from the region of Småland in Sweden, have been analyzed. The first brochure is from Visit Småland, the second from Vetlanda municipality and the third from Värnamo municipality. With the rise of globalization one of the consequences has been the increased opportunity for tourists to visit places all over the world, which also resulted in a greater competition between places than before. One reaction to this has been the increased marketing of each place unique characteristics in the tourist brochures.
Modellering av reflektans från ett sockerbetsbestånd med hjälp av en strålningsmodell
The Multispectral Canopy Reflectance Model (MCRM) by Kuusk (1995) has beenused to simulate the reflectance of a sugarbeet canopy. The simulated reflectancevalues show high absorptance in the VIS area, compared to field measurements, andhigh reflectance values in the NIR area. The errors may be due to overestimation ofclorophyll content in the sugarbeet leaves and scattered light during fieldmeasurements. The estimation of the clorophyll content where carried out using thePROSPECT-model by Jacquemoud & Baret (1990).During the vegetation period, the state of the canopy moves towards a closed canopy,with sparse vegetation in spring. The MCRM-model was used to perform a ?spring?simulation, which was compared to the original simulation.
Lastfördelning och effektmätning med Arduino och PLC
Detta arbete var beställt av Sjöfartshögskolan i Kalmar. Skolan ville ha en enhet som kunde mäta aktiv-, reaktiv- och skenbar effekt, ström, spänning, frekvens och cos? på en generator och som kommunicerade vidare dessa värden till en PLC. Detta för att kunna lastfördela lasten mellan ett antal generatorer i kursen Tillämpad elteknik 15 hp där studenterna bygger en generatorinstallation med tre generatorer. Ett funktionsblock för lastfördelning skulle också programmeras.