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4545 Uppsatser om Digital cancellation estimation frequency phase amplitude fast - Sida 30 av 303

Förekomst & kostnad av kapsprickor i stormaskadad skog

The aim for this study where to investigate the frequency of cutting cracks in saw timber harvested in the storm-damaged forests in regions where the storms Hilde and Ivar hit. The idea for this work came from one of the region?s biggest actors, SCA Skog and Jämtlands district. The purpose where to find out how big proportion of the saw timber that contains cutting cracks, their financial cost in lost wood value and also give advice and suggestions on how to work against the frequency of cutting cracks. For the field-study some guidelines where used to make sure that the samples were taken under the same conditions, they were: ? The field-study must be performed under harvesting of storm-felled forest, which are horizontal/inclined trunks. ? The averaged sized tree will make it possible to harvest saw timber. ? The trunks can?t be root cut. A methodology called in Swedish ?Trissmetoden? was used because it is the most frequent used methodology in earlier performed studies and the only one that can be used I field. Under the field-study data were collected from 570 saw timber logs, 30 logs from each one of the tested harvesters.

Förstudier av kommersiella fastigheter : En analys av arbetssätt ur ett projektledarperspektiv

This thesis is written at WSP management and investigates the practice of pre-project planning and feasibility studies at Swedish construction companies, through the study of the ongoing feasibility study of the mall Sturegallerian in Stockholm, and through interviews with experienced project managers in the construction industry. There is currently a big span in the way Swedish construction companies plan the pre-project phase and the aim of this thesis is to present a more generic and standardized way that helps minimize project risks and maximize efficiency and profit. The result is a generic model which can be used in pre-project planning. The model describes the phases in the preproject planning process and the activities that span these phases. Is also describes the categories of professions that need to participate in the preproject planning group and which activities that each profession executes. The other result is a list of factors that need to be considered for a well performed pre-project phase, as found during the interviews. Among others the thesis stresses the importance of involving the client as a key participant in the process.

"Lets Play!" : En studie av kunskapsöverföring mellan digitala spel och musikinstrument.

The purpose of this thesis was to examine if users of digital music games may acquire skills from the games that may be of use in learning to play a real instrument, that is a non-digitally simulated instrument like an acoustic piano. We have used Gee?s theory regarding a possible interconnection between different semiotic domains, and how this connection may enable a transfer of skills between related domains. In this thesis we examine possible skill transfer between the domains ?digital games? and ?non-digital instruments?. To examine our question formulation we chose to conduct a pilot study from which we collected both quantitative and qualitative data.

Kommunikation av CSR hos fast fashion företag- En fallstudie av H&M

- En granskning av Kairos Future. I Säffle sparar kommunen pengar genom att släcka var tredje gatlykta utanför centrum och tänker flytta delar av gymnasieskolan till Åmål. Samtidigt har kommunen lagt flera hundra tusen på ett pågående visionsarbete i samarbete med konsultföretaget Kairos Future..

Musikwebb ? En undersökning med fokus på urval, service och digitalisering

The aim of this master thesis is to examine the attitudes among library staff regarding a music downloading service called Musikwebb, which is available in many Swedish public libraries. It focuses on the impact of Musikwebb on the process of music selection, the relationship between Musikwebb and the digital development in public libraries and what service Musikwebb offers its users. The gathering of material was executed through focus group interviews with library staff in four libraries. This empirical material we divided in three categories: Music selection, The Library and its digital services, and Library services. We use the results of Sanna Talja?s discourse analysis regarding the relationship between Music, Culture and the Library to analyze our material.

En IT-forensikers kamp mot IT-brottsligheten : En studie om arbetssätt hos polisens IT-forensiker

The use of information technology (IT) is exploding. Today, it is in our daily routines to use some kind of information technology. The increase of users increases the number of cyber crimes, ie, crimes that in some way involve IT. As the cyber crimes grow in numbers, the workload for technical investigator increases, these are called digital crime investigators. The thesis is about how police digital crime investigators work and what problems they may encounter during an investigation.

"Fast en gång på sommarlovet tvingades vi att vara med på aktiviteter" : Om elevdemokriti i fritidshem

Denna studie ger ökad kunskap om hur en digital artefakt inom sociala medier skulle kunna uppmuntra till äkthet, som en motpol till profilering för att skapa en balans mellan profilering och äkthet. Studien barhandlar området ?hur och varför användare presenterar sig och för sig på ett visst vis i sociala medier?. Detta förstås och diskuteras med hjälp av de två ändpunkterna äkthet och profilering. Studien berör även designerns roll i detta sammanhang.Studien undersöker området genom en litteraturstudie, samt en egen kvalitativ studie i form av semistrukturerade gruppintervjuer.

Grundskolan i en digital omgivning. : en studie i skolans handlingsberedskap mot digitala kränkningar.

Uppsatsen centrerades kring ett accelererande problem- med konsekvenser även för skolan - nämligen de digitala kränkningarna. Syftet med själva projektet är att primärt belysa hur skolledning och skolpersonal dels uppfattar och dels hanterar möjliga digitala kränkningar, oavsett var och hur dessa kränkningar framförs.Uppsatsen bygger på intervjuer med nyckelinformanter i skolorganisationen i en kommun, från politisk nivå till verkställande nivå i form av rektorer m fl. Dessa intervjuer speglas mot svar från Skolverket, barnombudsmannen m fl. Intervjuerna - med nyckelinformanter ? visade på vissa svårigheter med detta problemområde.

Digitala spel och pojkars språkutveckling

Denna studie handlar om pojkars beskrivningar av att använda digitala spel och hur detta kan bidra till språklig kunskapsutveckling i skolans verksamhet. För att få studiens frågeställningar besvarade har intervjuer med fem pojkar i tio års ålder analyserats med utgångspunkt i socialsemiotiska teorier och begrepp. Pojkarnas beskrivningar visar tecken på att digitala spel kan användas som en resurs i utveckling av barns verbala och skriftligt språk. Pojkarna beskriver att utvecklingen av språklig och verbal kunskap kan äga rum dels individuellt och dels i grupp genom att använda digitala spel. Resultatet visar även att skolans verksamhet inte har erbjudit pojkarna möjlighet att använda digitala spel för att utveckla sina språkliga kunskaper..

En studie om vad som behövs för att skolträdgårdar skall fungera under en längre tid : en utvärdering av Edane skolas skolträdgård

Tail-biting in pigs is an animal welfare issue and in Sweden during 2002 the producers lost tree million Swedish crowns because of tail biting. This economic loss depends on the pigs which are discarded at slaughter because of tail biting. Tail biting can be separated into two stages, "pre-injury" and "injury". The aim of this study is to investigate if tail biting depends on environment or genetic background.A lot of research on the environments effects on the behaviour of pigs but not so much on the genetic effects has been performed. The frequency of tail biting in pig farms influence among others of environment enrichment, ventilation, gender and breed of the pig.

Puzzles combined with horror in digital games

Den här uppsatsen handlar om hur pussel och skr äck kan kombineras i ett och samma digitala spel. Hur man som utvecklare kan f å en j ämn balans mellan skr äcken och pusslen som presenteras f ör spelaren i spelet. Den typ av skr äck som den h ar uppsatsen har fokus på är genren 'Survival-Horror' och anv änder sig av den typ av skr äck som i digital spel kategoriserats som 'Survival-Horror'-spel. Den här uppsatsen visar en analys av 'Survival-Horror', samlar information om pussel och skr äck f or att utforma en hypotes hur dessa kan kombineras. F ör att kontrollera om hypotesen st ämmer utf ördes en intervju innan pussel- och skr äckmomenten implementerades i ett digitalt spel. Efter implementationerna genomf ördes det speltester i tv å omg ångar f ör att analysera resultatet mellan de tv å omg ångarna..

Digital signage i butikshyllan - Kan interaktivitet skapa ytterligare en dimension av påverkan vid köpbeslutet

Interactive media is constantly increasing in our surroundings and with the innovation of touch-screens, two-way communication with screens has become part of our daily life. Still, this well known way of process information is not often seen in the in-store environment of grocery retailing. Here, interactive media is an unestablished field where empirical studies are invisible within the academic world. The lack of knowledge in which effect interactive digital signage has is one of the barriers of investing in this marketing solution in-store. The main purpose of this study is to examine and describe the effects of interactive digital signage at shelf within grocery retailing.

Analoga och digitala verktyg i svensk?mnets skrivundervisning

The purpose of this study is to investigate how twelve middle school teachers use educational tools and what influences their choice of educational tools in Swedish language writing instruction. To answer this purpose, three research questions were formulated: What does writing instruction look like for middle school students according to the teachers in the study? What influences teachers' choice and use of educational tools in writing instruction? What opportunities and challenges do teachers experience in Swedish language writing instruction when using different educational tools? Twelve teachers from variously sized municipalities and with different experiences participated in the study through purposive sampling and convenience sampling. The chosen method is qualitative semi-structured teacher interviews. To analyse the results, this study employs analytical tools from the sociocultural perspective, using concepts such as mediation, appropriation, the zone of proximal development, and scaffolding. The results show that both analogue and digital tools are used in the teachers' writing instruction. The choice of tools should be based on pedagogical considerations, with an emphasis on social interaction and collaboration during the learning process.

Utvärdering av Vissberga lakvattenbehandling

In connection with the admittance of the EC-directive (99/31/EC) in Swedish politic, through the constitution of waste depositing (2001:512) at year 2001, the rules about management the landfills and leachates tightened. At the landfill Vissberga in the municipality of Hallsberg, a leachate treatment plant was constructed just a year thereafter. This treatment plant consisted of an aerated pond with a following land treatment and a willow cultivation to replace the land treatment during the summer. In this case the parameters, which were estimated as the most important to reduce, were iron and nitrogen. The iron would react with the oxygen-rich water in the aerated pond and precipitate to ferric-hydroxide and than settle in a calm zone of the pond.

Latent värmelagring i vattenburet uppvärmningssystem med elpanna för byggnadsapplikationer

Latent heat storage is a way to store thermal energy when a phase change material undergoes a phase change. The advantage of latent heat storage is the capability to store more energy per mass unit than other heat storage methods. The most commonly used phase change in latent heat storage is the transition between solid and liquid. Phase change materials can be divided into organics, inorganics and eutectics.In the Nordic electricity market the price of electricity is set every hour by Nordpool spot, which leads to price fluctuations because of changes in demand. The main goal of this report is to create a latent heat storage system in a single-family home and investigate the possibility to save money by charging the latent heat storage system when the price of electricity is low, and discharge when the price is high.The thermodynamic model consisted of a ?tube-in-tube? heat exchanger with phase change material in the outer tube and water as the heat transfer fluid in the inner tube.

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