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404 Uppsatser om Virtous cycle - Sida 4 av 27

Projektverksamhet med samhällsnyttan i fokus : införandeprocessen av SMS-biljetten vid Upplands Lokaltrafik

The aim of this thesis is to explore possible differences between public and private companies? way to manage projects. In order to analyze the managerial aspects, we have studied the project of a new payment system implemented at the public-transport organization Upplands Lokaltrafik (UL). The project enables mobile payment by text message (SMS). Most theory concerning the management of projects is developed for private companies.

Ny teknik för småskalig kraftvärme : - med fokus på Organisk RankineCykel (ORC)

As a part of the fight against the global warming the energy production needs to be more efficient and redirected towards sustainable options. One alternative is cogeneration, which means that electricity and heat is produced in one plant. The purpose with this survey is to examine if there are any commercial available combined heat and power techniques, based on combustion of solid moist biomass, which are suitable to small-scale applications. The technique must be able to produce between 2 and 10 MW thermal and the heat demand is a Swedish district-heating system. When already published reports had been studied, the Organic Rankine Cycle (ORC) was chosen as the most suitable technique.

Jämförelse mellan en träbro och en betongbro : En LCA-analys med fokus på koldioxidutsläpp samt en LCC-analys

This report is a thesis for collegeengineering program in structuralengineering at Uppsala University andwas commissioned by the Swedishcontractor Svevia. The study aims toprovide an overview of the mostbeneficial bridge material from bothenvironmental and economic point ofview.The life-cycle analysis covers onlycarbon dioxide emissions, since it isthe most spoken of in today?s climateagenda. Furthermore, this study aims tohighlight which parts, of the systemboundary, that contributes to greatercarbon emissions for the wood- and theconcrete bridge.The life-cycle cost analysis wascalculated with a lifespan of 40 yearsand covers the basic cost of investment,operating and maintenance, anddecommissioning costs.The analyzed constructions in this studyare existing projects that are almostcompleted. Both bridges were designed tohandle loads up to 60 tons.

Positioneringsstrategier fo?r konsultbolag inom TV- och mediabranschen

TV- och mediabranschen drivs pa? av teknikutveckling och a?r under fo?ra?ndring da?r allt fler konsumenter va?ljer att konsumera video via internet vilket sta?ller krav pa? akto?rerna i TV-branschen. Traditionella TV-operato?rer fo?rso?ker fo?ra?ndra sina affa?rsmodeller, branschgra?nser blir mer otydliga da?r bolag som tidigare ansvarat fo?r it-infrastrukturen fo?rso?ker ta sto?rre del av va?rdekedjan, nystartade fo?retag ser sin chans att konkurrera samt globala akto?rer som Google och Apple blir allt sto?rre hot.Fo?r konsultbolag finns det i TV-branschen da?rfo?r mo?jligheter att fylla ett marknadsbehov av branschspecifik ra?dgivning och resurser fo?r att hja?lpa TV- akto?rerna med att anpassa sig till digitaliseringen. Konsultbolag som fo?rso?ker etablera sig inom TV- och mediamarknaden beho?ver ta sta?llning till fra?gesta?llningar som hur brett erbjudande de ska ha, vilka kompetenser och roller de ska erbjuda och hur de uppna?r en stark marknadsposition.

The Psychology Driving&Barriers to Skunk Work Project

The Psychology Driving and Barriers to Skunk Work Projects (referred to throughout this thesis as the paper) represents a study predominantly on Tetra Pak from a selective perspective, the innovators. Innovators both past&present whose initiatives contribute to the well being of Tetra Pak as well as one from Ericsson were consulted. As with individuals, organizations possess definable characters that are influenced by the various stages of their life cycle. Theories of corporate life cycle phases and organizational character analysis were therefore employed to identify and explain organizational barriers to skunk work leaders&managers. Predicated on the Organizational Character Index survey developed by William Bridges PhD (himself a recognized leader in the field of transition management) and administered to sixty-one managers within a Tetra Pak business unit established the benchmark.

Jämförande kostnadsanalys av retur- och engångsemaballage

This report analyzes disposable packaging and returnable packaging with the methods life cycle analysis and life cycle costs analysis. These two different packaging are analyzed through the company Clas Ohlson?s packaging-flow. To get a picture of how the flow works, a visit at the company and email contact have been done with Clas Ohlson to get relevant informationToday Clas Ohlson has a big flow of articles to the stores without larger variations in the demand, with the exception of autumn, which is when customers start shopping for Christmas. Clas Ohlson?s articles are placed on a pallet and are wrapped into plastic-film for protection and to make sure that nothing will be stolen.

Feromoninnehållande substansers effekt på hjärtfrekvensen hos kvigor i östrus och diöstrus :

With increased milkproduction in our dairy cattle, comes a risk for a reduced fertility. Studies performed on animals and humans have shown that it is possible to manipulate the oestrous cycle through exposure to pheromones. This means that pheromones could potentionally be used to make reproduction more efficient. To evaluate the bioactivity of the substances in question, there is need for a bioassay. In insects, pheromones can induce a changed cardiac activity.

Förlorad i övergången från aritmetik till algebra : Hur gymnasieelever översätter aritmetik till algebra

The aim of this thesis is to look for signs of students? understanding of algebra by studying how they make the transition from arithmetic to algebra. Students in an Upper Secondary class on the Natural Science program and Science and Technology program were given a questionnaire with a number of algebraic problems of different levels of difficulty. Especially important for the study was that students leave comments and explanations of how they solved the problems. According to earlier research, transitions are the most critical steps in problem solving.

Livscykelanalys för koldioxidutsläpp från flerbostadshus

Today, about 15 to 20 percent of Sweden?s total emission of carbon dioxide can be traced to the household sector. By examining apartment blocks in a life cycle perspective, the origin of the carbon dioxide emission has been charted and analyzed. This information has been used to create a computational model that calculates the total emission of carbon dioxide from a specific apartment block. The results from the analyzed apartment blocks indicate that both the use of energy and the emission of carbon dioxide have been reduced since the 1960s. Through the examination of building materials, it is possible to lower the emission of carbon dioxide that origins from the construction phase of an apartment block.

Miljöutredning på Care of Haus : För och nackdelar med ISO 14001

Today many companies and municipalities requires that their suppliers should have an environmental management system to work by. This might be one of the reasons to the increasing number of companies that today are implementing environmental management systems. Care of Haus is one of the companies that thinks that the benefits are bigger than the disadvantages, when it comes to environmental management systems, therefore they have made the choice to work with ISO 14001.The ISO 14001 standard is deified on the PDCA- cycle. PDCA stands for Plan, do check and act. Care of Haus choose to work with the ISO 14001 standard since it is a well-known standard for the companies that?s Care of Haus collaborates with and it is also well-known within their clienteleWithin this report an environmental investigation has been made.

Dynamisk investeringsstrategi på den svenska aktiemarknaden

The purpose of this paper is to investigate if a dynamic investment strategy on the Swedish asset market can accomplish better returns then a static investment strategy. The dynamic investment strategy is created by incorporating business cycle predictors and firm-level variables to predict future stock returns. The predictive regression is calculated wih 60 months of observation (1999 01-2005 12) and is then used to estimate future returns for 23 months in the period 2004 01 -2005 11. The structure of the regression, with linear functions of ? and ?, goes back to Shanken (1990) and Avramov and Chordia (2005) has had success with the variables chosen.

Utvärdering av lämpliga metoder för vattengenerering

This master thesis has been performed at the department of Machine Design at KTH, The Royal Institute of Technology. The thesis has been a part of a global development project in collaboration with Luleå University of Technology, Lund Faculty of Engineering and Stanford University. Corporate liaison and sponsor has been Immerse Global Inc. The project was also performed on sponsorship from the Product Innovation Engineering Program, PIEp. The thesis is a representation of some of the contributions made by the authors.The lack of clean drinking water is one of the key issues facing the world today.

Analys och beräkning av emissionsfaktorer för växthusgaser

An increased awareness about the global warming has created a demand for more information on how the climate is affected by different activities.This master thesis was initiated by Tricorona, a Swedish company that offers its customers analysis and calculation of their climate impact. Tricorona also supplies climate neutralisation with CERs, in accordance with the Kyoto protocol and controlled by the UN. This work demands updated emission factors for greenhouse gases. An emission factor gives information about the greenhouse gasintensity of a service or a product [kg CO2-eq./ functional unit].The purpose of this thesis is to examine how electricity, district heating, hotels, taxis, food and materials affect the climate and how emission factors for these areas can be calculated.This was done by reviewing and comparing different studies and by interviewing experts. The information was evaluated and recommendations on calculations and emission factors were made.The consumption of energy is the main source of greenhouse gas emissions for district heating, electricity, hotels, taxis and materials.

Utomhuspedagogik : Några lärares uppfattningar om utomhuspedagogik och erfarenheter av att undervisa i utomhusmiljö.

Syftet med denna studie var att undersöka lärares uppfattning om utomhuspedagogik och erfarenhet av att undervisa i utomhusmiljö. Respondentundersökningen utgick från de fyra frågeställningarna: Hur uppfattar lärare utomhuspedagogik? Vilka erfarenheter har lärare av att undervisa i utomhusmiljö? Hur uppfattar lärare elevers lärande i utomhusmiljö? Är det ett effektivt lärande som lärarna beskriver utifrån David Kolbs ?The Experiential Learning Cycle??Kvalitativa intervjuer användes som metod och genomfördes på tre olika grundskolor i mellersta Sverige. Den ena skolan har en miljö/naturprofil, de två andra skolorna har inte en miljö/naturprofil. Det insamlade materialet bearbetades med hjälp av en tematisk analys, samt utifrån David Kolbs erfarenhetsbaserade cirkel ? ?The Experiential Learning Cycle?.I studien redovisas lärarnas uppfattningar och erfarenheter, resultatet visar att lärarna uppfattar utomhuspedagogik som ett praktiskt arbetssätt där lärandet blir konkret.

Förklaringsmodell för cykelresor i Trondheim : Fysiska och demografiska faktorers betydelse för det geografiska resmönstret

The work examines geographical variations of bicycle use in Trondheim municipality with the aim to create an understanding of what influences the use of bicycles and explain the geographical travel pattern for cycling. The work focuses on the how physical structures generates different transports effects. Where bicycle travels in Trondheim municipality are undertaken is described by using network analysis in ArcGIS, based on aggregated data from the travel habit survey (RVU) in 2009/2010. Trondheim municipality is divided into smaller geographical units (zoner) whose characteristics are described by 19 variables, categorized into 6 groups; Distance, Land use, Topography, Bicycle Facilities, Road characteristics and Demographic factors.By linear regression analysis in SPSS and ArcGIS Spatial Analyst, an explanatory model is elaborated. The variablesdistance to the regional center, workplace density, percentage separate bike paths and hilly terrain explains 78 percent of where cycle journeys are undertaken.

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