
Sökresultat:
4307 Uppsatser om Intermittent Positive-Pressure Ventilation - Sida 22 av 288
Studier av utseendet på askan i sodapannor med hjälp av bildanalys
To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.
Processutveckling av detalj i PTFE
Habia Teknofluor AB makes parts of PTFE. With their process they reaches a pressure of 250bar at maximum. For their parts to improve they need to reach 400bar at least. We will give suggestions that can solve their problem. All our suggestions is described in the report with a conclusion.
Exokrin pancreasinsufficiens hos schäfer :
Exocrine pancreatic insufficiency is a hereditary disease that in Sweden is especially common in German shepherds. The Swedish German shepherd club has currently no plan of action for decreasing disease prevalence in the breed.
The purpose of this study was to review existing literature about the disease and also to perform an inventory of the disease in the Swedish dog population. Special focus was laid on the German shepherd breed. The inventory was later compared to an unpublished inventory of the disease with data from the Swedish University of Agricultural Sciences from 1997.
During the period 2002-06-01 to 2007-09-26 (ca 64 months) 2961 blood samples were analyzed for cTLI. 274 samples were positive (cTLI .
Surgical stress response in dogs diagnosed with pyometra undergoing ovariohysterectomy
The aim of this study was to investigate the intraoperative surgical stress response in dogs undergoing ovariohysterectomy and to compare acepromazine and medetomidine as premedications. 15 dogs diagnosed with pyometra were used in this study. Blood pressure and heart rate were used as parameters to measure surgical stress response. The surgery was divided into four phases. Phase 0 was the period 10 minutes before the skin incision, phase 1 was skin incision and opening of abdomen, phase 2 was manipulation of uterine horns, ligation and transection of mesovarium and phase 3 was ligation of cervix, removal of organs and closing the abdomen.
The results showed that phase 2 was the most intense phase of surgical stress, regardless of which premedication the dogs received.
When acepromazine and medetomidine were compared the results showed that within phase 3, all dogs that were given medetomidine had higher blood pressure compared to dogs that were given acepromazine.
The dogs that were given acepromazine had higher heart rate than the dogs that were given medetomidine in phase 0, phase 2 and phase 3.
.
Spånsugssystem och luftrörelser hos TanumsFönster AB : mätningar och förslag för minskat undertryck i fabrikslokal
TanumsFönster ABs fabrik utanför Tanumshede i Bohuslän är byggd i många etapper. Spånsugssystemet och delar av allmänventilationen har inte anpassats tillräckligt till nuvarande byggnad och verksamhet. Det saknas också ritningar och kunskap om aktuella luftflöden. De luftflöden som krävs för att spån-utsugen ska fungera bra ersätts inte av kontrollerad tilluft, istället läcker uteluft in genom otätheter och runt portar på grund av det stora undertryck som finns i byggnaden. Detta skapar, främst vintertid, problem i form av drag och höga uppvärmningskostnader.I detta examensarbete dokumenteras huvuddelarna av spånsugssystemet i maskinhallen med ritningar och flödesmätningar.
Hälsoeffekter från trafikbuller vid Bäckegatan
The purpose of the study is to investigate the possible effects of an unstable ventilation system and its influence on energy use and thermal comfort. The report also explores how qualified personal working with HVAC view and handles system control.In order to meet the requirements in energy efficiency and a comfortable indoor climate control regulation is a prerequisite. With optimized increased complexity of the climate systems, it becomes more challenging to control the system and the risk of unstable control increases. No previous studies about what affect an unstable system can have on energy use and thermal comfort have been found.The report is based on several tests were the controlling variable has been increased until the system becomes unstable. Two different types of unstable systems have been investigated.
Svenska Turistföreningens fjällstugor - Uppvärmning, ventilation och elförsörjning
Svenska turistföreningen håller på att uppföra ett enplanshus. Huset är på 279 m2 varav ca entredjedel är gemensamhetsutrymmen med kök, uppehållsrum, toalett, hygien- och torkrum. Detplaneras 10 sovrum med 24 bäddar. Uppgiften är att undersöka om det går att uppfylla dagenskrav på inomhusmiljö vad gäller uppvärmning, ventilation och elbehov i svårtillgänglig miljö därmöjligheten till extern el inte finns tillgänglig. Rapporten presentera även beräkningar ochinformation som belyser möjliga energisparande åtgärder och vilken effekt de har påenergikonsumtionen.
Human attitudes toward large carnivores bear, wolf, lynx and wolverine : a case study of Västerbotten County
Management of large carnivores involves more than just the management of animals, people also have a large influence. The Swedish parliament decided in 2009 that the county boards should use co-management to a greater extent in management. This shows how important human dimensions are.We know from previous research that the majority of people in Västerbotten are positive toward large carnivores and the management done by the state, however there is a negative minority which should not be neglected. This paper contributes with an examination of attitudes toward large carnivores, wolf, bear, lynx and wolverine, in Västerbotten County. The data for this study were derived from a survey that was sent out to 150 randomly selected persons in every commune in following counties: Norrbotten, Västerbotten, Jämtland, Västernorrland, Dalarna, Gävleborg and Stockholm.
Analys av prefabricerade installationsbjälklag i koncepthus
Ventilationssystem tar ofta mycket plats och kan beroende på utformning påverkabygghöjden. Studentbostäder kräver låga hyror och därmed låga produktionskostnader.Examensarbetet visar hur ventilationssystemet kan byggas in i ett innovativtinstallationsbjälklag och på så sätt spara bygghöjd. Lägre bygghöjd leder till lägre kostnader..
En jämförande studie av fluiddynamiken för olika fluidiseringsmedium i en kallmodell av en 100 kW-anläggning för kemcyklisk förbränning
To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.
Svenska idrottsprofiler i reklam: älskar, älskar inte..Älskar!
The aim of this paper is to examine, by means of a quantitative method, whether using a Swedish athlete endorser in a sports advertisement will increase its effectiveness. We examine which characteristics an athlete endorser needs to be able to make people form a positive attitude towards the athlete endorser and thereby make him or her successful in advertising. We also look into whether an interest in sports can affect the advertisement effectiveness when using a Swedish athlete endorser. The results show that a well-liked Swedish athlete endorser generates highest ad effectiveness and that the most important characteristics that contribute to form a positive attitude towards an athlete endorser are trustworthy, physical attractiveness, success in sports and ?successful in respondent?s mind?.
Undersökning av bindningsmekanismer vid pressning av metallaminat : Investigation of bondning mechanisms at the pressing of metal laminates
Increased understanding of the mechanisms that operate in conjunction with the welding of metal surfaces may help to improve existing manufacturing processes, and to enable new products and combinations of materials. The purpose of the project has therefore been to acquire a deeper understanding of what is happening in the bond for steel and for the factors that form the basis for a bond to develop between metals in the production of laminates by pressing. The merge has been done by pressing and the surfaces after the experiments have been studied in detail in the scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and with interferenceprofilometry in Wyko, to provide a greater understanding of the mechanisms that influence the bonding in the interface between metals. The project was limited to contain the materials Docol 1000, HyTens 1200, Aluminum AA3003 and a commercial steel. The parameters varied in the experiments to study their influence closer are temperature, pressure, heat treatment and pretreatment. This has been implemented by pressing with varying temperature and pressure.
patients experiences of living with a pressure ulcer
Jerlemar, M & Nordström, J., Patienters upplevelser av att leva med trycksår. En litteraturstudie. Examensarbete i omvårdnad, 15 högskolepoäng. Malmö högskola: Hälsa och samhälle, Utbildningsområde omvårdnad 2011.
Bakgrund: Trycksår är ett vanligt förekommande sjukdomstillstånd som drabbar framförallt äldre och rörelsehindrade. Trycksår kan medföra fysiska och psykiska komplikationer hos den drabbade.
Feedback : Ur ett elevperspektiv
AimThe purpose of the survey was to see how students relate to feedback in physical education. The aim was also to find out how students like to receive feedback (written, oral or timing). The survey will also specify what kind of feedback the teacher provides.QuestionsHow do students react to feedback?How do students want to receive feedback?What kind of feedback do the students receive during the lessons in physical education?MethodThe method used in this study was qualitative group interviews with an observation before the interviews. The school that participated was my placement school during my teachers program and it is located in a suburb south of Stockholm.
På jakt efter dalanavellaven Umbilicaria subglabra samt klättringens påverkan på lav- och mossvegetationen på Ålandsklipporna utanför Uppsala :
In search of Umbilicaria subglabra
In Sweden Umbilicaria subglabra has its only known occurrence in Lybergsgnupens nature reserve in the county of Dalarna where it has been found only once in 1936. It was found on the east-facing rock spur, approximately 650 meters above sea-level. The lichen is now red-listed as Regionally Extinct (RE) in Sweden. The aim of this study was find U. subglabra.