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4307 Uppsatser om Intermittent Positive-Pressure Ventilation - Sida 16 av 288
Upphängningssystem
Examensarbetet som utförts på Institutionen för Maskinteknik vid Blekinge
Tekniska Högskola i samarbete med Kockums AB har benämningen ?
Upphängningssystem?.
Dagens upphängning av rör, ventilationsrör och kabelbanor består av ett antal
olika singelupphängningar utan större samordning. Detta har gjort att Kockums
AB önskat få fram ett samordnat upphängningssystem som klarar av alla dessa
upphängningstyper.
Utifrån denna problemställning har vi arbetat oss fram till ett
upphängningssystem bestående av ett multisystem och ett flertal
singelupphängningar för rör, kabelbanor och ventilation.
Är det en bra strategi att investera i företag som offentliggör återköpsprogram? : En Eventstudie av Stockholmsbörsen 2000-2006
Since the year of 2000 it has been legal for companies in Sweden to repurchases their own stocks. The purpose of this study is to examine if it has been possible to make a positive abnormal return in Stockholmsbörsen by buying stocks in companies that has announced a buyback program. Our study includes 59 companies that have accomplished a buyback program throw the years of 2000 to 2006. To calculate the abnormal return we use the BHAR method with Affärsvärldens generalindex and branchindex as benchmarks. The result shows a significant positive abnormal return of 23,56 percent the first 12 month after the announcement with Affärsvärldens generalindex as benchmark.
Åtgärdsförslag och känslighetsanalys vid energieffektivisering ur ett fuktsäkert perspektiv : En fallstudie på timmerhuset Sofiedals herrgård
This thesis investigated the possibilities to resume cultivation of an old manor house built of timber and what this would mean from an energy and moisture perspective. The building in this case study is named Sofiedals mansion and was built in 1858 in Valbo 11 kilometers west of Gävle.The structure of the house was documented and used as a starting-point for carrying out calculations focused on energy and moisture aspects. With the help of a number of computer programs and a conducted air tightness test, the buildings energy consumption were calculated and compared with the current building regulations.In addition, the building was analyzed considering energy retrofitting and what it meant for moisture problems. The energy retrofitting consisted of additional insulation, decreasing the buildings permeability through air sealing; window and door replacements. When a building is equipped with natural ventilation it is difficult to know its precise performance and how an energy retrofitting affects it.
INOMHUSMILJÖ I SMÅHUSMED FTX-VENTILATION : EN LITTERATURSTUDIE MED ENKÄTUNDERSÖKNINGAR OCHMÄTNINGAR
This master thesis was initiated with the aim to answer at what level of installed capacity of wind power in the northern parts of Sweden it would be beneficial to improve the transmission capacity from the northern Sweden. During the process of this work the aim has changed to try and create a model that can be used to analyze how well the hydro power installed in the northern Sweden can even out the quick changes in wind power production.To create a good model of all hydro power in northern Sweden is a very large job, unfortunately too large for a master thesis. This report therefore ends with an extensive analysis of the simplifications that have been made and their effects as well as a list of the future work that has to be done.The model that has been created have shown to be effective and produce good results. The conclusions that can be made is that the northern Swedish hydro power have very good possibilities to balance the wind power production. Only a few cases where water have been spilled even though there has been some free capacity has been discovered.
FE-modellering av hjullast på sandwichpanel
This bachelor thesis in mechanical engineering was performed during the spring2015 in collaboration with Composite Consulting Group in Laholm. TheComposites Consulting Group works mainly with design and details of differentcomposite projects, their main area is FE-calculations, 3D-modelling andmechanical tests with composite materials.The aim of this bachelor thesis was to simplify the calculation process of solidmechanics for sandwich panels by simulation with computer software. The goalwas to decrease the time for the design and calculation process of the constructionand the cost of the practical tests. Our task was to build a static three dimensionalmodel with the computer software Abaqus, where the result should correspondwith the practical pressure tests in laboratory.The project started with collection of material data from Composites ConsultingGroup and by learning the software Abaqus, simultaneously a specification wasdeveloped in corporation with the company. Later on, a static wheel pressuremodel in the software Abaqus was produced which simulated the behavior of thesandwich panel during static wheel-pressure by a pallet truck.
Rapportera Mera?: En kvalitativ studie av hur svenska finanschefer uppfattar kravet på kvartalsrapportering
The purpose of this paper is to study how Swedish CFOs perceive that the requirement for companies to issue quarterly reports affect business operations in the company. The fact that it is regulations on the Stockholm Stock Exchange, and not the law, that requires companies to issue quarterly reports makes Sweden unique in Europe. The paper is based on interviews with CFOs from 32 companies quoted on the Stockholm Stock Exchange. The major finding in the study is that a majority of the CFOs perceive that the pressure for short term results, created by quarterly reports, affect their work and the investment decisions made in the company. Also CFOs feel that the market over interprets the information given in quarterly reports.
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.
Drömmen om att segra över marknaden : En jämförelsestudie mellan aktierekommendationer och insidertransaktioner som portföljstrategi
The purpose of this paper is to compare two different portfolio strategies consisting of insider transactions and stock recommendations and examine whether they posses any information advantage. The portfolios are balanced once every three-, six- and twelve- months in the period of 2007-2009. Our results show a pattern for these investment strategies. The portfolio consisting of insider transactions generates a positive return in equity in a negative market environment and the opposite reaction in a positive environment. The result for the portfolio consisting of stock recommendations show a positive return of equity in positive environment and the opposite effect in negative environment. The pattern that has been observed can be classified as an anomaly.
Prevention av kateterrelaterad urinvägsinfektion
Syftet med denna litteraturstudie var att undersöka sjuksköterskans preventiva åtgärder för kateterrelaterad urinvägsinfektion. Studien baseras på Goodmans sju steg för systematisk litteraturstudie. Totalt tio vetenskapliga artiklar med varierande kvalitet inkluderades. Artiklarnas söktes fram i databaserna Cinahl och PubMed och kvalitetsgranskades utifrån ett modifierat granskningsprotokoll. Resultatet visar på en minskning av incidensen av kateterrelaterad urinvägs¬infektion vid utförandet av preventiva åtgärder så som; handtvätt och korrekt fästning av kateterslangen, användning av intermittent och silverbelagd kateter, påminnelseprocedurer om onödiga katetrar och kontroll av kateterdurationen.
Periodisk fasta i kombination med styrketräning ökar muskelmassa och minskar fettvikt hos yngre vuxna
SammanfattningBakgrund: Dagens stillasittande livsstil med ökat intag av energigivande ämnen resulterar i ett konstant anabolt hormonellt påslag. Detta leder till ökad övervikt och andra välfärdssjukdomar. Det rekommenderas att individer håller sig till en hög måltidsfrekvens med jämna mellanrum under dagen. Detta har börjat ifrågasättas med konkurrerande alternativ som involverar en tidigare samhällslivsstil så långt som 10 000 år sedan, då måltidsfrekvensen inte kunde planeras på samma sätt som idag.Syfte: Syftet är att under sju veckor undersöka effekten av två stycken veckovisa 24-timmars periodiska förbud mot intag av energigivande ämnen, med implementering av fysisk styrketräning och dess effekt på lean body mass (LBM) och fettvikt hos yngre individer.Metod: Två separata 24-timmars perioder av fasta i samband med tre separata styrketräningstillfällen genomfördes per vecka under sju veckor. Kroppsmått gällande kroppsfett i procent, fettvikt i kilogram (kg), kroppsdimensioner i centimeter (cm), LBM och total kroppsvikt i kg togs innan och efter studiens genomförande.
En studie av fysiska, organisatoriska och individuella riskfaktorer hos arbetstagare med datorarbete
Musculoskeletal disorders (MSD) are common in individuals with computer based work. Thecurrently known risk factors for these disorders is in the literature derived to physical,organizational and individual factors. A recent survey of three working groups at a companyin Stockholm explored that more than 50% of the employees had neck and shoulder problems.Aim: The study aims to create a better understanding for the current musculoskeletalproblems at the company. Such an understanding is created by examining the physical,organizational and individual risk factors in the workplace and the result can provide a goodbasis for intervention proposals.Method: In order to answer the aim of the study the authors chosed to use both qualitativeand quantitative methods of data collection through interviews and questionnaire survey. Theinterview and questionnaire was designed to create both a specific and comprehensive pictureof the physical, organizational and individual risk factors having a bearing effect on theexisting MSD problem.Result: Seven categories were compiled from interviews, which largely deals with the factthat high demands can lead to behaviors that may pose a significant risk for the occurrence ofMSD.
Krav på redovisning och prestation: En studie om hur en insamlingsorganisation hanterar externa krav
Much attention has been directed to Charity Foundations and how they use the donations given to them. Donators and external organisations put pressure on and evaluate the performance of Charity Foundations. The purpose of this thesis is to increase the understanding of how Charity Foundations handle the pressure from external parties through a qualitative case study of one Swedish Charity Foundation. The most important external factors have been identified and the accountability relationships between each party and the Charity Foundation have been examined. The empirical material was collected through semi-structured interviews and from written sources.
Det fria ordets makt: En kvantitativ studie om effekten av kommentarer i anslutning till artiklar på nyhetssajter. Vad händer när elektronisk w-o-m blandas med traditionell pr?
This thesis treats the topic of user-generated comments connected with news stories on news sites, meaning electronic word-of-mouth combined with PR. The writers have examined how different types of comments affect consumers' perception of the article and also what communication effects these comments generate in terms of attitudes, purchase intent and word-of-mouth intent. The results interesting to the news site owners, is that lots of comments and negative comments generate a negative effect by making the actual article less credible, attractive and worth reading (relative to the subsequent comments). On the positive side, serious comments imply that the news story is perceived as more interesting, than a news story followed by non-serious comments. From a brand equity perspective, the interesting results show that few comments compared to lots of comments, generate a better attitude to the brand, even though there is no difference in how positive or negative the comments are.
Utomhuspedagogik : En undersökning om pedagogers inställning till utomhuspedagogik i förskolan
This is a study where the purpose was to investigate whether preschool teachers have a positive or negative attitude to outdoor education. Their view of outdoors education is also treated. The methods used were questionnaires and semi-structured interviews. The survey was sent to all preschool teachers in three municipalities and on a social network. The interviews were conducted at a preschool, which had a form of outdoor profile.
Magnesiumintagets betydelse för blodtryck och magnesiumkoncentrationen i stickprov av urin, träck och blodplasma hos häst
The purpose of this trial was to evaluate the possibility to use sampling of faeces, urine and plasma, and measurements of blood pressure as methods of discovering hypomagnesemia in horses, as well as the application handiness of these methods. The most commonly used method of checking the magnesium status of a horse is to analyze samples of serum or plasma. The trial was of a switch-back design, in which the horses were used as their own controls. The animal material was five Swedish warm blooded trotters between six to ten years old, and weighing between 485-620 kg. The trial consisted of three periods that were two months each.