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1418 Uppsatser om Mass flow - Sida 54 av 95

Utvärdering av beräkningskoden APROS för användning i inneslutningsanalyser

At Forsmark nuclear power plant the rather old-fashioned software COPTA is used in containment safety analysis. There exists a desire within the organisation to introduce a more modern software with ability to more detailed modeling and increased usability.The goal of this thesis was to evaluate the software APROS in containment safety analysis. APROS models describing one of the containments at Forsmark NPP have been developed. Two simulations of typical containment incidents, one of them a large pipe break, have been made where containment safety parameters such as pressure and temperature are studied. Results are analyzed and verified against results from corresponding COPTA models.

En farmakokinetisk pilotstudie av olika beredningar av bensylpenicillin intramuskulärt till häst :

Penicillin G (benzylpenicillin) is the most commonly used antimicrobial substance used in equine medicine today. Two forms of penicillin G are available for equine use; one form is the poorly soluble penicillin G procaine and the other is the very soluble sodium salt. Although penicillin has a wide safety margin and is considered to possess a good tolerance, reactions due to side effects are sometimes encountered, which commonly is named ?penicillin-shock?. The etiology behind penicillin shock in horses is not completely understood, but the most common reason is believed to be procaine toxicity.

Kurslitteraturdilemmat. En undersökning av hur universitetsstudenter söker sig fram till och får tag på sin kurslitteratur.

This master?s thesis investigates in which ways students seek out and access their textbooks and how they use their university?s library in this process. Data is collected through interviews from six students several semesters into their studies at the University of Stockholm. For the interviews two students each were selected from the fields of law, economics and humanities. The empirical findings were analyzed using T.D Wilson?s model of information behavior (1997).

Rumsligt koncept som sto?d fo?r rundvandringar : En studie av flo?den och processer pa? Alfa Laval i Eskilstuna

AbstractThis study deals with the tours carried out in the manufacturing sector, at Alfa Laval in Eskilstuna. A large number of visitors, from a variety of backgrounds, go there to see how the manufacturing of separators works. With visitors I refer to the company?s customers, suppliers, students, in- house trainee courses, managers and senior citizens groups.The study examines how these tours can be standardized using spatial design. The result shows the importance of working systematically with visualizing the work as well as the environment for optimizing the visitor's understanding.

Med orden som bete : Identitet och framskrivande i Clarice Lispectors roman Levande vatten

Clarice Lispectors is one of Latin Americas most famous writers, and she wrote a number of books during her lifetime. Her novel Stream of Life (Água viva), which came out in 1973 and was translated into Swedish in 2007, is considered to be one of Lispectors most difficult texts to read. It consists of several fragments put together into one text; however the text has no traditional narrative or structure. It is the flow of moments that moves the text forward, as it is written down by the protagonist in the book.The primary aim of this essay is to examine how the protagonist in Stream of Life through different means, as the moment, the description, the word and the variations, creates an active participation in the formation of its identity. I will discuss the moment and its act of constructing the book?s circular structure, which is of importance.

Forskning och museer : en kartläggning av fältet

Today every organization is committed to some kind of environmental scanning in order to get necessary knowledge of the world around them. The acquisition, organization and storage of information in combination with a strategic use, is today an important factor for a successful organisation in any sector of our society.In this Master thesis I have studied how an organisation such as The Confederation of Swedish Enterprise (Svenskt Näringsliv) handles its information resources. I have also looked at the flow of information within the organization. The Confederation of Swedish Enterprise is Sweden?s largest business federation representing 50 member organizations and 55 000 member companies.

Replikering av komplexa kunskapssystem : En fråga om organisatorisk integration

Background: Many authors consider knowledge to be a significant source for competitive advantage. Replicating companies found their competitiveness on an ability to leverage its knowledge base by replicating its business model in new contexts, a process often referred to as the McDonalds approach. Several authors emphasize that an efficient method for knowledge transfer may increase the risk for imitation. Purpose: The purpose of this study is to examine in an explorative manner how strategies for replicating complex knowledge systems are employed and developed. Furthermore, our ambition is to explore the notion of replication strategy.

Identifiering av specifka sekvenstyper av Staphylococcus epidermidis med mass-spektrometri

BakgrundPrevalensen av demenssjukdomar förväntas öka globalt. Det finns många former av demenssjukdomar men gemensamma drag är att hjärnans nervceller bryts ned och dör i snabbare omfattning än normalt. Fortskridandet av sjukdomen leder till att de som insjuknar förlorar många av sina tidiga kognitiva, fysiska och sociala förmågor. Läkemedel är av begränsad nytta och därför är olika former av icke-farmakologiska interventioner en integrerad del av vården av personer med demenssjukdom. Reminiscensterapi är en sådan metod som med hjälp av så kallade minnesväckare framkallar tidiga minnen.

Kappa Control with Online Analyzer Using Samples from the Digester's Mid-phase

In the pulp industry, digesters are used to disolve lignin in wood chips. The concentration of lignin is measured and is called the Kappa number. In this thesis, the question of whether an online Kappa sensor, taking samples from the mid-phase of the digester, is useful or not is analyzed. For the samples to be useful, there has to be a relationship between the measured Kappa at the mid- phase and the measured Kappa in the blowpipe at the bottom of the digester. An ARX model of the lower part of the digester has been estimated.

Energikartläggning av polishuset i Gävle : Åtgärdsförslag för ett minskat energibehov i fastigheten Gävle Söder 17:10

The objective of this work was to introduce measures to reduce energy and water demand at Gävle Söder 17:10. To succeed, this energy audit has been made. The work is based on collected statistics from the property owner Norrporten, measurements, literature review and through consultation with experts in the field. Two models, one for each building, have been created in the simulation program BV2 to estimate the potential of energy measures based on the collected information. The models in BV2 have been verified against the statistics of the energy consumption.With the help of calculations and simulations, seven cost-effective measures have been identified.

Transientanalys för Forsmark block 2 och 3 : Studie av hur val av driftpunkt och pumpreglering påverkar torrkokningsgränsvärdet

The dry out criterion (MCPR) has been calculated for the most limiting H2-events for Forsmarks unit 2 and 3, at operating points that are normally not analyzed before each cycle. The operating points that normally are regarded as the ones with the lowest margin to dry out are the ones where the thermal power is the highest at agiven recirculation flow. This report shows that this is not the case for Forsmark 3. MCPR-values at partial power operating points are higher for the limiting case inside rather than on the boundary of the region of operation. It is therefore recommended that the method for determining the dry out criterion for Forsmark 3 is revised to account for this effect.

Osäkerhet i energisimuleringar av flerbostadshus : Analys av fem nybyggnationer

Since energy simulations are used to verify that projected residential buildings will reach the current energy requirements it is important that the results are reliable.This report investigates the extent of uncertainty in energy simulations, estimates the causes of the uncertainty and its economic and environmental consequences.The method used in this report is based on three validation methods; empirical validation, analytical validation and comparative validation. The analysis was carried out for five multi-family dwellings in Uppsala with installed meters for energy measurements. One of these objects, Klockarlunden, was studied in more detail than the others.The results show that the deviations are between 10 and 29% for the studied objects, which means that the uncertainty is estimated to be at least 29%. All simulations underestimate the buildings need of energy. The simulation for Klockarlunden can predict the energy consumption to be within the range of 46-98 kWh/m2year with 90% confidence level based on the current uncertainty.

Vilka faktorer bidrar till att spelare fastnar i MMORPG spel?

Massiva onlinerollspel är idag mycket populära och försäljningen och spelandet utav dessa ökar markant. I och med detta väcks frågan om vad det är i dessa onlinespel som gör att människor spelar och fortsätter spela. Denna uppsats inriktas främst mot MMORPG:s, Massively Multiplayer Online Role-Playing Games, då författarna anser att det är i denna onlinespelsgenre den största möjligheten att finna och definiera de faktorer, som påverkarspelares vilja att spela, finns. För att ta reda på dessa faktorer skapades en enkät vars frågor utformades med en gameflowmodell i baktanken. Denna enkät lades sedan ut på sex olika onlinespelsanknutna forum, där totalt 105 spelare anonymt deltog.

?Det sade bara klick?: en studie om 15-åriga tjejers Internetanvändning utifrån ett källkritiskt perspektiv

This Masters thesis aims at investigating how 15-year old girls use the Internet, particularly on their free time, taking a source critical perspective. It includes group interviews. The main question of this thesis was whether there is a need for specific user education. The following four questions were asked: What do they do on the Internet during their free time? In what way do the girls learn how to interact with each other on the Internet? How do they relate to different types of web pages and materials from a source critical aspect? What content do they consider to be relevant in a user education? The study is mainly focused on information use and information behaviour in different contexts.

Vad håller vi på med? En kartläggning av kommunikationsprocessen kring kampanjen "Vad håller du på med?"

The aim of this thesis is to use Gabriel Tardes theories concerning imitation, repetition and the public opinion as a way of understanding how transmedial communication develops over time. This involves a study of social media, traditional press and public organizations in relation to each other. The campaign, What are you doing? (Vad håller du på med?, 2013), launched by the Swedish military as a way of drafting more soldiers, is used as an example of how the theories can be applied to help us understand connections, patterns and social behavior in the rapid mutation and viral spreading of information. By discussing the campaign and its effects, the ambition is to give an understanding of how a campaign of this scale could be planned for and structured.

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