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1194 Uppsatser om Electric efficient - Sida 21 av 80

Den urbaniserade Umeälven : Vattenkraftverken som utsträckt urbanisering

This paper examines the power producing dams along the Ume-river as an integral part of and a result from the urbanization process in Sweden during industrial capitalism. The aim of the paper is to contribute to the knowledge of the urbanization process in Sweden in general and of its traces along the Ume river in the county of Västerbotten in particular. The paper applies the theory of concentrated urbanization and extended urbanization put forward by Neil Brenner and Christian Schmid (2015) and argues that the building of power producing dams along the Ume-river is part of an extended urbanization process. This becomes particularly evident when examining the vast physical structures that is the dams, situated in an otherwise remote and sparsely populated area. These vast physical structures are also very well connected to a nation wide electric grid that has connections to bordering countries as well.

Energianvändning i sjukhuslokaler. Analys baserad på verksamhetsrelaterade nyckeltal

ABSTRACTThe discussions about energy use have increased year by year everywhere in the society, and so also in the healthcare sector. But what is actually energy use in a hospital facility, and what affects it?The typical way today to express the energy use is in kWh/m2. The problem with a key performance indicator that is expressed as energy use in relation to a specific area is that it does not take into account the activity in the building. Even though the activity to a very high extent affects the energy use.

Trä och fukt ? Mätmetoder för fuktrelaterade dimensionsförändringar hos trä och deras användbarhet, med två fallstudier inom konservering

This thesis deals with different methods for measuring moisture-related dimensional changes ofwood. Typically relative humidity is measured to determine if the ambient climate around anobject is harmful to it or not. Values between 40 to 65% RH are recommended for hygroscopicmaterials. To know how a wooden object actually reacts to changes in the surroundingenvironment requires methods that involve the object itself. Because of the wood anisotropy,differences in wood structure, finishes and other restraints, it is not always possible to predict themovements.This paper addresses various measurement methods, primarily methods that have been testedin the field of conservation, with examples of their use.

Analys av spänningsstabilitetsberäkningar i det svenska elsystemet

Numerical simulations play a vital role in both static and dynamic stability assessment of electric power systems and the foreseeing of voltage collapse. Simulations performed by Svenska Kraftnät(SvK) are mainly done in the specialized voltage collapse predicting software tool, SPICA and the more all?purpose software tool, ARISTO.The grid operators at SvK use SPICA to predict the maximum transfer limit at specified sections (in this report the section in concerns is the southern part of Sweden i.e. interface1 4). SPICA is mainly used as an online application by using actual states from the grid, these states update every quarter of an hour.This thesis is a continuation of the master thesis SPICA ? ARISTO JÄMFÖRELSE by Jakob Katzman and Johan Fält.

E-handel : Vilka faktorer styr konsumentens köp över Internet och då med fokus på hälsokostbranschen?

In today?s IT-community, consumers use the internet in a increasing rate to find information or to purchase products and services. This has led to a growth in the market, but also a greater competition between e-stores and web shops. To separate yourself from the masses has become more important, the question is; what strategy should the IT-salesman use? The meaning of this scientific study is to find and focus on witch the primary factors/aspects are, that controls and is the very foundation for the consumer making a purchase, by using the internet.

Hur man arbetar för en annan värld : En studie av Attac-medlemmars syn på rörelsens visionsarbete

The thesis discusses new social movements and how they act on the conditions of the late capitalistic society. The purpose is to examine a new social movement trough its own members. What is their view of the movement?s aims and visions? How do they look upon the strategies to achieve these goals? The study is based on eight qualitative interviews with members of Attac Sweden. The results show that the members are highly aware of the movements avowed aims and strategies.

Utveckling av Analysverktyg för GEMS PET Systems : En användningscentrerad utvecklingsmetod

The company GEMS PET Systems produces cyclotrons which is a type of particle accelerator. The cyclotrons create log files that are analyzed by the company?s employees for different purposes like troubleshooting or installation. The purpose of the project is to with a usage-centered design method create a paper prototype of a tool that will help the employees to analyze the log files in a more efficient way than earlier.The result shows how the usage-centered design method was used to create the paper prototype and how the user interface was created according to human-computer interaction (HCI)..

Hur ansträngande är det att vara er kund?: En undersökning vid Vattenfall AB

Syftet med examensarbetet är att utifrån ett kundperspektiv undersöka hur kunder upplever e-tjänster i energibranschen. Examensarbetet har använt webbenkät som datainsamlingsmetod. Då all insamlad data inte användes skedde ett dataurval. Den utvalda datan har sedan analyserats med hjälp av befintlig teori för att finna upplevda problemområden och förbättringsförslag. I den teoretiska referensramen redogörs vad en e-tjänst är samt vilka faktorer som är viktiga vid skapandet av en e-tjänst.

Vana texturerare : En uppsats om minsta motståndets väg, invanda mönster och liknande gränssnitt

This essay brings up how experienced texture artists in game development can get comfortable in their workflow and therefore not spend time on learning new techniques that in the end could be more efficient. We base this on theories that people often choose the path of least resistance, which in the case of an experienced texture artist would be the path they have learned and are comfortable with. We also talk about the popularity of Photoshop and that many of today?s texture artists in the game industry are using it and that this could be because Photoshop was one of the first programs that could be used well for texturing. Because of this many learned to use it and stuck by it and then taught Photoshop to new texture artists because that is the program that they know.

Sammanfogning av videosekvenser från flygburna kameror

The usage of Unmanned Aerial Vehicles (UAV) for several applications has in-creased during the past years. One of the possible applications are aerial imagecapturing for detection and surveillance purposes. In order to make the captur-ing process more efficient, multiple, cameraequipped UAV:s could fly in a for-mation and as a result cover a larger area. To be able to receive several imagesequences and stitch those together, resulting in a panoramavideo, a softwareapplication has been developed and tested for this purpose.All functionality are developed in the language C++ by using the software li-brary OpenCV. All implementations of different techniques and methods hasbeen done as generic as possible to be able to add functionality in the future.Common methods in computervision and object recognition such as SIFT, SURF and RANSAC have been tested..

P/E-effekten : En utvärdering av en portföljvalsstrategi på Stockholmsbörsen mellan 2004 och 2012

One could argue that the most discussed topic in finance is whether or not it is possible to ?beat the market?. Even though many people claim to do this, there is little evidence to support the idea that one can consistently beat the market over a long period of time. There are indeed several examples of investors who have managed to outperform the market consistently for a long time, but the efforts of these individuals or institutions could by many be considered to be pure luck.One of the many strategies that have been evaluated by several researchers and is said to generate a risk adjusted return greater than that of the market, is one based on the P/E-effect. This strategy is based on the financial ratio P/E ? price divided by earnings ? and used by constructing portfolios consisting of stocks with low P/E ratios.

Indexeffekten : En studie gjord på Nasdaq OMXS30 och OMXH25

AbstractMaster thesis in Business Administration, School of Business and Economics at Linneaus UniversityAuthors: Patrik Larsson and Pontus GislénSupervisor: Håkan LockingExaminer: Sven-Olof CollinTitle: The index effect- a study on Nasdaq OMXS30 and OMXH25Introduction: A significant part of the financial literature is based on the Efficient Market Hypothesis which assumes that prices in the market reflects all available information. Anomalies, such as the index effect, indicate weaknesses in this theory as it has been proved that it is possible to outperform the market using public information. Hence, the index effect can be linked to market efficiency which makes it interesting to study from a theoretical perspective. The mapping of the index effect is also interesting from a practical perspective, as it leads to a better understanding of whether investors and firms should take this anomaly into account.Problem: Is there an index effect, how does it behave and what can explain this effect?Purpose: The aim of this study is to investigate the index effect.

Ekonomistyrning inom äldreomsorgen, Intraprenad eller entreprenad - är det någon skillnad

In recent years the elderly care in Sweden has gone through several structural changes with the main purpose of delivering a more efficient service. The aim of this study is to compare the management control system in a privately and a publicly managed elderly home. A qualitative study was conducted which included interviews, observations of meetings and reviews of relevant documents. To be able to identify possible differences the framework of Hood consisting of seven dimensions was used. An analysis of the selected dimensions showed that the differences in management control were minimal and Brunsson's theory of politicization and 'company-ization' were used to explain why..

Avfallsdirektivets påverkan på efterbehandling av förorenad mark

The purpose of this report is to increase the awareness about the problem that occur when the waste hierarchy is applied to management of contaminated land. The work with remediation of contaminated land in Sweden is part of the efforts towards reaching the national environmental objectives. Therefore a subsidiary aim is to analyze how this influences the prospects of reaching the objectives. The work consists of two parts; a case study and a comparative literature study that focus on England, the Netherlands and Sweden. The case study is intended to provide a practical perspective through a comparison of the climate impact from two methods.

Virtualiserad testmiljo? : Utva?rdering av virtualiseringsprogramvaror

Virtualization has increasingly been adopted in the last decade and the usages of virtualized environments are going to be an important part of how computers are used in the nearby future. There are a lot of advantages with virtualization and different methods have been developed to make it as efficient as possible.Forsmarks Kraftgrupp were interested in the possibility of taking advantage of virtualization in their testing environment.In this report, hypervisors of type 1 and type 2 and containers have been evaluated to determine which method and what program is preferable on a server cluster of four HP ProLiant DL380 Generation 4. Because of the hardware specifications of the DL380, focus has been on virtualization programs that do not require hardware assisted virtualization.The results show that it is possible to use some of the type 2 hypervisors on the HP ProLiant DL380 Generation 4. The suggested virtualization programs are VMware Workstation or Oracle VirtualBox. .

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