Sökresultat:
1540 Uppsatser om Heat flow - Sida 52 av 103
Fordonsgas ur gödsel och vall
AbstractThe dependency of fossil fuels in the transport sector causes large emissions of carbondioxide. This problem can we reduce by using vehicle gas from digested solid manure and leftover of pasture. I have studied the potential for this in the county of Västernorrland. Thepurpose is to investigate how much vehicle gas that can be extracted.One central, large scale digestion and upgrade plant should be placed in Härnösand. Theamount of pasture and manure that is economical and practical available is enough to produce2,7-3,5 millions Nm3 vehicle gas.
Processanalys vid Color Print Sweden AB med fokusering på prepressavdelningen
This thesis work has introduced process orientation at the printing company Color Print Sweden AB. The outcome ofthis work is a survey of the work flow at the prepress department. To visualise the production process at the companya comprehensive mapping of the main process, order-to-delivery, has been made. The work has detected a couple ofcritical elements in the existing process. These elements are the following: initial check of material delivered to the prepressdepartment as well as the control made of the plotter print-out, digital test print and plate.
Automatisk nivåreglering av strålkastare
To be allowed to sell Z-suspended vehicles with dipped beam Xenon or LED lighting, Scania have to develop automatic headlight level control. This master?s thesis aims to be the foundation to that development.The thesis consists of several parts; a market analysis of how competitors to Scania and the general vehicle industry solve this problem; several available principles for detecting the amount of control needed; the construction of a test station for sensors, a control unit and components connected controlled by the control unit; a further theoretical and practical development of one principle ? one rotational sensor connected between the chassis and the back drive axis; a state flow model programmed in Simulink that produces the control signal for the headlight leveling from the sensor input.Lastly the thesis gives some recommendations to the further development and implementation of automatic headlight level control on Scania vehicles..
Det vidgade textbegreppet : i teori och praktik
This work is about the expanded conception of text and takes off in the use of this expression in the high school curriculum. The work begins with a theory chapter, where a few different definitions of text are the basis for reasoning about factors which can have contributed to an expansion of the conception. Hereby other important expressions, related to the expanded conception of text, as hypertext, multimedia and intermediality, are brought up. Further, is examined empirically how the expanded conception of text is interpreted, rhetorically and practically, by a few teachers in the High School. Finally, covered scientist?s theories are discussed and compared with the concluded empiric data.The study shows however, that the expanded conception of text in the curriculum has not become a conception for the teachers who were interviewed.
Självbildens nivå och utveckling i skolanSpecialpedagogiskt stöd ur elevperspektiv
Det talas idag mycket om Sveriges satsningar på en skola för alla. Samtidigt mår många elever dåligt. Det är något som inte stämmer. Syftet med denna studie är att undersöka hur elevernas självbild påverkas av specialpedagogiskt stöd. Avsikten är att beskriva självbild, självkänsla och självförtroende, ur den enskilde elevens synvinkel.
Lyftkraftsberäkning för vingprofiler: Virvelpanelmetoden
The problem presented in this report is that of finding a method to calculate the lift force from a single-element airfoil of arbitrary shape. A number of restrictions are used in order to simplify calculations while retaining reasonable accuracy. The problem is solved for the two-dimensional case only and no finite-wing effects are taken into account. Furthermore, inviscid and incompressible flow is assumed. The method used to solve the problem is the vortex panel method, with vortex singularities distributed over simplified airfoil geometry.
Informationshantering och -spridning på Axis Communications AB
In a complex and turbulent world, several companies begin to realize the value of information as a strategic resource and try to find strategies to manage this. This master thesis aims to describe the information management at Axis Communications AB. Axis is a fast growing company and due to this they have not been able to manage the flow of information whitin the company. To find out how the information was managed at this time we made a survey and employee interviews at three Axis business units. By analyzing the surveys and interviews we found several problems.
Mellanskog medlemmars och medarbetares inställning till SMS och e-post : en fallstudie
Communication, information and marketing are three of the main prerequisites for companies that want to increase their turnover. The everyday work for a Forest Manager within the forest owners? association Mellanskog consists to a large part of interpersonal communication, either by close vicinity contact or by phone calls. Interpersonal communication is time consuming and resource intensive. If the flow of information, communication and marketing does not function well then there is a lack of a base for development.
En byggnads energibehov : En studie om energieffektivisering av en befintlig byggnad i södra Sverige
The purpose of the study was to investigate the use and losses of energy in an existing older building. Another purpose was also to look through various options for heating systems with renewable energy in the building. The aim was to reduce the use and losses of energy. The first step was to study the related electricity bills of the building and also perform measurements and calculations of the building envelope and ventilation. The next step was to find out the possible actions for energy saving by performing measurements and calculations.
Public Hear Aid
This project started when LIC Audio AB wanted help with development of a hearing aid for public rooms. The problem is that a lot of people suffer from some sort of hearing impairment. In places with a lot of people and background noise the problem becomes bigger and the sound seems to flow together. During the project we found the solution for the problem in the shape of a headphone. The headphone receives a signal from a preinstalled hearing loop.
Kommersiella fastighetsinvesteringsbeslut : Påverkande faktorer ur ett investerarperspektiv
AbstractA master thesis in business administration 30 hp, Jönköping International Business School, Spring semester 2012.Authors: Sarah Henningsson & Jim BörefeltSupervisor: Urban ÖsterlundTitle: Commercial real estate investment ? Factors from an investor perspectiveBackground and problem: In this study, we focused on the real estate investor and the factors and issues that may arise and affect real estate investment decisions. It has been put in relation to the other parties in the process of assessing and affecting real estate investment decision. The parties that we studied are real estate investors, banks, brokers and appraisers.Purpose: This study aims to describe and explain the factors that affect commercial real estate investments for investors, credit assessment conducted by the bank and valuation made by the broker and appraiser.Delimitations: We have chosen to limit the study to commercial real estates including residential, retail and office properties, industrial properties and combinations thereof. Agriculture buildings and forestry plots are not examined.
Hur påverkas ett värdland av flyktingströmmar : En fallstudie om den syriska flyktingströmmens påverkan på det turkiska samhället
As of 2013, around 51 million people were living on the run, classified as refugees. One of the reasons the number has increased so much during the last years can be explained by the war in Syria. The aim of following study is to evaluate the impact the Syrian refugee flow has had on the Turkish society up until today, seeing the consequences of economic, political and social impact made on the Turkish society. Due to these chosen aspects the study will be concentrated only on the changes in the Turkish society brought about accordance with economic, political and social effects. What is desirable is to achieve greater understanding of the positive and negative aspects of refugee flows on host countries.
Toleranszon och kundtillfredsställelse i tjänsteföretag
The aim of this thesis is to describe how service companies through adjustment of the customer?s zone of tolerance can influence customer?s perception of the service during the processes of service delivery and create customer satisfaction. The method used was case study approach utilizing personal interviews, which were conducted at two service companies. The study showed that the aspects of the service that have greatest importance for the customer?s assessment of the service and customer satisfaction among others are personal treatment and that personel behave in the way that makes the customer feel itself taken good care of and unique.
Uppgradering av biogas i systemperspektiv med avseende på miljöpåverkan och kostnader
Swedish biogas is currently produced mainly by anaerobic digestion of sewage sludgeat sewage treatment plants, landfills and anaerobic digestion of household or industrialwaste. Also cattle ma-nure from farms can be used to produce biogas. Upgradingbiogas represents an increase in methane concentration from about 65 % to about 97%. In addition, particles and contaminants must be sepa-rated from the upgradedbiogas. There are various methods for upgrading and this report compares sixdifferent methods with respect to environment and economy: water scrubber,Biosling, cryo technology, chemical absorption, Pressure Swing Adsorption (PSA) andmembrane separation.According to the used ORWARE model, chemical adsorption with amine has the leastenvironmen-tal impact (methane emissions) and the lowest costs.
Turistinformation på Internet Vi hade i alla fall tur med vädret
The tourism industry in EU is one of the biggest sectors and employs about20 million people. A key factor of the industry is information, much oftourist information is today on the Internet. On Internet there is twoways information can flow, the information can either be pushed to aconsumer or the consumer of the Information can pull it from a source.In a feasibility study for the report the participants expressed thatthey thought the tourist information on the Internet was unpersonal anddidnt fill their informationneeds. The purpose of the report was to findout how push and pull of touristinformation can be balanced on Internet.The empirical data was collected with a feasibility study, a survey anda case. The survey was conducted at IT-University and School of Business,Economics and Law at Göteborg.