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291 Uppsatser om Web technologies - Sida 13 av 20
Effektiviseringspotential inom industrisektorn : Energibesparing vid frekvensstyrning av centrifugalpumpar ? en fallstudie
The project was performed at SiemensIndustry Drive Technologies with theobjective to provide actual values forthe energy savings potential withinSiemens scope of practice.In Sweden the electrical drives standfor about 30 % of the total electricityconsumption and about 60 % of theelectricity consumption within theindustry. During the pre-study phaseelectrical drives with pump applicationswere identified as large energy users.Because of this a case study at one ofSiemens customers, Stora Enso Fors wasperformed. The system that was evaluatedduring the case study was a throttledsystem with a centrifugal pump forpumping pulp.The results yielded that a saving ofover 50 % could be achieved by replacingthe throttle valve with a variable speeddrive, a frequency converter. Thepayback period was two years and twomonths and the present value for thetotal life cycle cost of the variablespeed system was 662.566 SEK lower thanfor the throttled system. As aconsequence, Stora Enso Fors is advisedto invest in a frequency converter forregulation of the system.The general conclusion is that a focuson system efficiency is the mostimportant factor in energy efficiencyprojects and that the system regulationmethod has a large impact on the overallsystem losses and hence its efficiency.Energy efficiency potential forthrottled systems with centrifugal pumpsis large and significant economicalsavings can be made through investmentswith short payback time..
Den Digitala teknikens påverkan på resebranschen och dess marknadsföring
The intention of this essay has been to investigate how the new digital technology has affected the tourism industry and marketing, as well as how travel agents and tour operators adapt to this. We also aimed to get a broader view of how the future might look like when it comes to marketing and virtual service landscapes. We decided to base our research according to these following four questions:? What affect travel agents? way of adoption to the technical development?? What purposes do the travel agents have for building up their virtual service landscape?? How much does the travel agents emphasize on digital marketing?? What can travel agents do to better adapt to the technological development in the future?We have chosen to use a qualitative research for this essay. The reason for choosing a qualitative research was to gain a wider understanding that would represent a big part of the changes of technology development.
Utvärdering av anaerob behandling av hushållsspillvatten och tekniker för efterbehandling
The continuous process of urbanization results in demands on research and development for ecological and sustainable city development. Because of this, the current systems for wastewater treatment may have to be improved. In order to evaluate new technologies for municipal wastewater treatment, a development project has been initiated for the new district Hammarby Sjöstad in Stockholm. The project is lead by the company Stockholm Water. High environmental standards have been put up for the district, as it must be twice as good as an ordinary new district.
Solenergi på Nya Karolinska Solna
In today?s society climate change has grown to one of the largest global issues. To reduce emissions of greenhouse gases, large changes of the energy system are required. An increasingly popular solution is investments in local production of renewable energy resources like wind, solar or geothermal power. The following report examines the possibility for implementing a solar power plant on the new hospital Nya Karolinska Solna. Two different technologies for extraction of solar energy has been studied, solar thermal collectors to meet the need of heating and solar cells to satisfy the need for electricity linked to operating the hospital building.
Hantering av QoS i Distribuerade MPEG-videosystem
With the advance in computer and network technologies, multimedia systems and Internet applications are becoming more popular. As broadband network is prevailing, more clients are able to watch streaming videos or to play multimedia data over the Internet in real-time. Consequently, there is an increasing demand in the Internet for streaming video systems. As the run-time environment of such applications tends to be dynamic, it is imperative to handle transient overloads effectively. The goal of this work is to develop an algorithm that would provide a robust and controlled behavior of the video system so that important data is delivered on time to the video clients.
MyMusic ? e-shop för musik i Flash
This is the end report of my final exam at Medieteknik. It covers the planning, work process and review of a Flash based web application that I set out to do. The goal was to create a user friendly, interactive e-shop with embedded functionality for playing music, displaying rich media content and researching possible payment solutions, to enable buying music files online. The project involved creating the user interface, the programmatic functionality of a Flash client (an SWF file). Also, setting up an Apache HTTP Server and establishing a working ?bridge? between the Flash client and the web server with Flash Remoting components and AMFPHP.
Google digitaliserar bibliotekssamlingar En analys av hur biblioteksvärlden reagerar på Google Book Search
The wide spread of the Internet and new information technologies in recent years has come to effect how libraries manage and disseminate information. Search engines like Google are widely used by people who often find the information retrieval systems of libraries to be too complicated. In 2004 Google announced plans to digitise five major library collections. Organisations representing the publishing industry and authors have since then filed lawsuits against Google claiming that Googles scanning of library books infringe the rights holders copyright. Due to Googles potential impact on libraries this thesis aims to examine how Googles digitisation project, Google Book Search, has been received in the library community.
Marknadsföring av gymnasieskolan : En studie av kommunägda och privatägda gymnasieskolor
The authors of this paper intended to study and compare local secondary schools(municipally owned schools) and independent secondary schools(privately owned schools) in Stockholm County. The purpose oft his paper is to explore how secondary schools market themselves and whether the view and use of marketing is different between municipal and independent secondary schools. The essay is by nature multi-case study and interviews were conducted with representatives from four high schools, two municipal and two independent, one representative from Education Committee and one from Privet Schools? Association.The introduction of School reform in 1992 enabled opening of privately owned schools and empirical datas hows that before 1992 secondary schools did not have the same extent of competition and the need of marketing was not widespread, but today there is fierce competition among secondary schools. The introduction of School reform changed the conditions for the Swedish school market, greater freedom of choice led to atougherfight for the students, which in turn increases the competition between secondary schools.
Kommunikationsgränssnitt mot GP&C transponder
Examensarbetet som beskrivs i denna rapport handlar om en ny teknik för att förbättra säkerheten för flygplan i luften och i närheten av flygplatser. Denna teknik benämns ADS-B (Automatic Dependent Surveillance Broadcast), och är tänkt att göra det möjligt för piloter att själva få information om trafik i närområdet. Nuvarande system baserar sig i huvudsak på visuella observationer från flygledare i kontrolltorn samt radarspaning omkring flygplatserna. Med det nuvarande systemet kommer det att bli både dyrt och svårt att upprätthålla en acceptabel nivå på flygsäkerheten när trafiken ökar. Arbetet har bedrivits i AerotechTelubs regi i Linköping samt med hjälp ifrån företaget Sectra Wireless Technologies AB.
Teknik för biogasanvändning
This thesis is made by Carl Persson and Alejandro Saavedra for Gryaab. Gryaab is Gothenburg?s water processing plant and produces about 60 GWh biogas annually with a flow around 1150 Nm3/h. Gryaab wants to research their possibilities to become independent with electrical energy and the possibilities to enrich, upgrade biogas. The use of methane rich gases like biogas and natural gas is today low in Sweden compared to major parts of the world.
Utvärdering av Sex Sigma vid ABB Robotics: med rekommendation för införande och framtida tillämpning
Examensarbetet är genomfört vid Robotics i Västerås, en enhet inom ABB Automation Technologies AB. Bakgrunden till examensarbetet är en tidigare genomförd kartläggning av företagets kvalitetsbristkostnader som belyst ett flertal problemområden och skapat ett behov av att stärka och effektivisera kvalitetsutvecklingsarbetet. Syftet med examensarbetet är att utvärdera praktisk användning av kvalitetsutvecklingsmetoden Sex Sigma och undersöka behovet av en förbättrad metod för kvalitetsutveckling vid företaget. Författarna avser att presentera en rekommendation för om och hur metoden kan införas och användas. Resultatet av det genomförda arbetet visar på tydliga brister i det utvecklande kvalitetsarbetet vid ABB Robotics inom områden rörande resurser, kompetens och kvalitetsstrategi.
Ragnar Edenmans kulturpolitiska problematisering: styrning av estetisk bildning och estetisk miljö i statlig socialdemokratisk kulturpolitik 1957-67
This master?s thesis analyzes how cultural policy was problematized in three governmental policy areas; culturalpolicy for the free sector, education policy and popular education policy, during the social democrat Ragnar Edenman?s time (1957-67) as minister of ecclesiasticalaffairs. Earlier research has examined the policy for the free sector, concerning artist?s economic problems. This thesisadds an analysis of the other fields of policy, which were reformed in the 1960?s by the same ministry.
Digital service erbjuden till användare med funktionsnedsättning på Armeniens national bibliotek: utmaningar och åtgärder.
The purpose of the present qualitative study is to create knowledge about librarydigital services and their marketing to patrons with disabilities in Armenia, on theexample of the National Library of Armenia, as well as, to discover opinions of theNLA librarians and patrons with disabilities about the importance of library digitalservices to people with disabilities. Literature review and qualitative interviewing has been employed as methods to collect the empirical data. The results have been analyzed and discussed based on the library-marketing model of marketing research, marketing segmentation, marketing mix strategy and marketing evaluation suggested by Koontz & Gubbin (2010). It has been concluded, that 1) e-accessibility issomething new at the NLA and the NLA does not provide equally available knowledge, resources, services, facilities to patrons with disabilities, because of the following main challenges: lack of continuous funding and support from the state, lack of appropriate facilities and technologies, lack of qualified staff, and historicallyinherited library infrastructure impediments; 2) no library service marketing is conducted to patrons with disabilities at the NLA; 3) the opinions are that provisionwith such services is very important to people with disabilities, since they allow those people to gain access and use information in formats adopted to their various needs, and, of course, they become integrated into the modern society. The important role of a library as a non-discriminator and copyright protector in a developing country when delivering digital library services to patrons with disabilities has also been discovered..
MyMusic ? e-shop för musik i Flash
This is the end report of my final exam at Medieteknik. It covers the planning,
work process and review of a Flash based web application that I set out to do.
The goal was to create a user friendly, interactive e-shop with embedded
functionality for playing music, displaying rich media content and researching
possible payment solutions, to enable buying music files online. The project
involved creating the user interface, the programmatic functionality of a Flash
client (an SWF file). Also, setting up an Apache HTTP Server and establishing a
working ?bridge? between the Flash client and the web server with Flash
Remoting components and AMFPHP.
Distribution av känslig data
Information Technology (IT) makes it possible to electronically distribute data between actorswho are in geographically diverse areas. Nowadays, information is sent less frequently throughtraditional correspondence in favor of faster electronic equivalents via the internet.Despite effective IT environmentand secure encryption techniques choose some actors to sendinformation through physical delivery. This phenomenon occurs in those working withconfidential information as it is handled by a number of rules and safety regulations.Based on a set of rules and requirements, we have looked over the possibility of sending sensitiveinformation electronically over the internet. The aim was to find general guidelines for howcompanies and organizations should manage and send sensitive information over insecurenetworks. This led us to our research question: How can information be exchanged betweenactors in geographically diverse areas be categorized and encrypted so that it can be transportedover the internet without security or integrity deficiencies?To answer the question, there was a case study at a defense company.