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727 Uppsatser om Pressure - Sida 3 av 49

Alfa-linolensyra från linfröolja och dess påverkan på blodtrycket -En systematisk översiktsartikel

Sahlgrenska Academy at University of Gothenburg Department of Internal Medicine and Clinical NutritionAbstractTitle: Alpha-linolenic acid from flaxseed oil and effects on blood Pressure ? A systematic reviewAuthor: Christine Hårdfelt och Liduina van SitterenSupervisor: Helen LindqvistExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: April 9th, 2014Background: High blood Pressure is strongly associated with an increased risk of developing cardiovascular disease, particularly stroke. ALA-fatty acids have previously been associated with decreased blood Pressure. Flaxseed oil is very rich in these fatty acids and has also been highlighted as an affordable and sustainable source.Objective: To investigate whether ALA-fatty acids from flaxseed oil may affect blood Pressure in people with high risk for cardiovascular disease.Search strategy: Two searches in PubMed and Scopus were performed. The sample was specified by using specific keywords.Selection criteria: The criteria for inclusion of studies required that flaxseed oil was compared with a control and that blood Pressure was measured as an endpoint.

Analys av klimatskärmens lufttäthet i ett småhus

Together with NCC and Sweco we measured the air-flow on a semi-detached house in Jönköping. When a Pressure measurement is made, the house gets exposed to over- and under Pressure. This is done in order to examine the houses climate shell. The climate shell of the semi-detached house we tested exceeded the required air thickness in BBR-2002, hence, measures have to be taken.This report also displays the importance of building air thick houses and what consequences a non air-thick house can have for the ones residing the house. A discussion of different measures is on for the addressed problems with the flow-measurement and the alternative construction-solutions.Furthermore we have described in this report of how to account for the performance of the air Pressure, what kind of equipment we used and how we came up with the results.

Tryckpulsgenerering för funktionskalibrering av mätsystem

The running of gas turbines with low emissions causes high Pressure pulsations to arise in the combustion chamber. These pulsations are high amplitude sound vibrations. At some frequencies these are harmful to the gas turbine. Hence these pulsations are monitored to avoid operating conditions where pulsations are specifically harmful. It is necessary to expose the system of known pulsations to verify the functionality of the monitoring process.

Underso?kning av tryckfall relaterat till avstånd mellan två 90 graders kro?kar i cirkula?r ventilationskanal

Due to higher standards of living around the world, greater industries and larger infrastructures causes an increase of the global energy consumption. This harvest of energy puts a great stress on the global environment. With this development, it becomes increasingly important to utilize energy resources in the best possible way.Fans are components that are often used in the industry and in households. A common problem is that the fan is oversized. An oversized fan causes an excessive flow, which has to be adjusted in order to achieve the correct flow.

Produktionsskillnader och virkesskador med olika typer av matarvalsar :

Earlier investigations showed that damages on timber from feeding rolls could be within the lower classes of damage according to VMRs classes. Knowledge about differences in productivity between kind types and aggressive types of feeding rolls is necessary because it should influence the question about damages on timber caused by different feeding rolls. In this study the production and timber damage in a harvesting head were evaluated at three levels of Pressure (8, 10 and 14 MPa) on the feeding rolls, and with three different types of rolls. One type, the rubber cushioned steel plate roller had 10 mm studs and rubber damping, one ?middle? type made of solid steel with 14 mm studs, and one aggressive type, also made of solid steel with 18 mm studs.

Noteringsplatsskiftets betydelse för ett företags värde

Studien visar att en positiv onormal avkastning uppstår i och med att kungörelsen av ett noteringsplatsskifte offentliggörs. Den positiva onormala avkastningen återgår från och med det fysiska skiftet till OMX från de mindre noteringsplatserna. En temporär värdeutveckling som stöds av Price Pressure hypotesen och som förklaras av handelsvolymförändringar i aktien..

Kan nutritionsbehandling bidra till läk-ning av trycksår bland äldre patienter?

Sahlgrenska Academyat University of GothenburgDepartment of Internal Medicine and Clinical NutritionTitle: Can nutritional support contribute to the healing of Pressure ulcers in elderly patients?Author: Anton Kinnander, Sandra SmidelikSupervisor: Elisabet RothenbergExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: 12-04-11Background The number of elderly patients with co-morbidity is increasing in the western world. It is therefore reasonable to predict increasing incidence and prevalence of Pressure ulcers. One study, published 2009, found that as many as 59 % of geriatric patients within the Swedish health care system had developed Pressure ulcers. Symptoms vary from mild erythema to severe deep tissue damage and development of Pressure varies from hours to weeks.

Tidspress och ekonomiskt risktagande

Stress and time Pressure is more present in todays labor markets. In financial markets a securities broker is forced to take decisions on investments under high cognitive load and under extreme time Pressure. The research of decision under risk gained new ground with the development of the prospect theory and gave us new insights to the decision making of men. Prospect theory has shown that people are risk seekers when dealing with loss decisions and risk avert when dealing with profit decisions. The value function are defined over gains and losses.

Blodtrycksfall, pulstryck och lindriga kognitiva symptom - En polytom logistisk regressionsanalys

People live longer. There is a growing need to increase the knowledge of aging and of the need among the elderly for medical care in the near future. As a step towards meeting this need, a survey among the elderly in Skåne is made by the division of Geriatric Medicine in Malmö University Hospital. This survey is called Gott åldrande i Skåne, GÅS. A frequent decease among the elderly is Mild Cognitive Impairment (MCI).

Krafter på rörsystem vid transient flöde : En jämförelse mellan RELAP5 och Fluent

At Forsmarks Kraftgrupp AB (FKA) forces on pipe systems due to transient flow are frequently calculated as a step to verify their structural integrity. In nuclear industries these forces are often calculated with a one dimensional thermal-hydraulic analysis-code called RELAP5. When calculations regarding more complex geometries are needed, the three dimensional code Fluent is often used. This code is highly time consuming and requires large computational power.This projects aim is to compare calculations of Pressure, flow and forces carried out by RELAP5 and Fluent for an arbitrary pipe section during transient flow conditions. This has been accomplished by constructing a simple geometry for which a transient flow is simulated in both programs.

Nya kriser, gamla källor : en kvantitativ studie om nyhetskällor på expressen.se och dn.se under katastrofen i Japan

In a press release from the Swedish church it says that the Pressure from people who are in need is increasing on the deacons in Sweden and that it?s getting higher each year. This study contains the search of knowledge about the deacons of the Swedish church, if they actually feel an increasing Pressure and in what way, how they are handling the possible Pressure from people in need, if that Pressure is too high and if the deacons feel that they can assist the people seeking their help. The study also aim to provide more knowledge about the deacons experiences of the opportunities and boundaries (or obstacles) they meet in their line of work and how they handle the boundaries when/if they can?t provide the help that the people need.

"Är jag tillräcklig?" : - Diakoners hantering av möjligheter, begränsningar och inre konflikter

In a press release from the Swedish church it says that the Pressure from people who are in need is increasing on the deacons in Sweden and that it?s getting higher each year. This study contains the search of knowledge about the deacons of the Swedish church, if they actually feel an increasing Pressure and in what way, how they are handling the possible Pressure from people in need, if that Pressure is too high and if the deacons feel that they can assist the people seeking their help. The study also aim to provide more knowledge about the deacons experiences of the opportunities and boundaries (or obstacles) they meet in their line of work and how they handle the boundaries when/if they can?t provide the help that the people need.

Processdatorsystem för tryckreglering

The task of this project was to build an computer processing system for Pressureregulation, in which the Pressure loss over the open hydrolicvalve should be kept as low as possible. By using an cross connected proportional directional valve the valve problem could be solved. The control- and regulationproblem for the Pressureregulation system was solved by using the DAQ- card NI6035E from National Instruments and the computerprogram Automatic Pressure Control 1.0 which has been software developed and written in Visual Basic. The final result showed that correct processvarible was obtained in 0,5 seconds, when the setpoint was changed in the testarea 0 - 2,5 MPa..

Drivaxeltrycksreglering hos tunga fordon : För en ökad framkomlighet vid vinterförhållanden

Heavy duty vehicles often have problems with traction during the winter periods. For vehicles that can lift tag axles it is possible to increase the normal force on the driven axle by lifting one or more tag axles, this will then increase the propulsive force of friction. This however increases wear on both road and vehicle. A possibility to reduce the wear while achieving nearly equivalent traction compared to lifted tag axles is to allow the vehicle to regulate the normal force by lowering the Pressure in the air suspension associated with the tag axles or by the lifting of these axles. The vehicle would then by itself be able to set just the right amount of normal force on the drive wheels to avoid unnecessarily high normal forces while maintaining sufficient traction.The purpose of the report is to find out which parameters affect heavy duty vehicles when driving on slippery slopes and how traction can be improved.

Modellering och simulering av det evaporativa bränslesystemet i en personbil

This thesis work has been performed at the department of diagnosis and dependability at Volvo Car Company, Torslanda. The background of this project is based on interest in ascertaining how different factors possibly can affect a diagnosis method, which has been developed to find leaks in the fuel tank and evaporation system. According to the OBD II requirements leaks with an orifice diameter larger or equal to 0,5 mm, must be detected. The idea of the diagnosis method is to create an over Pressure in the system with an air-pump. The current through the pump is measured and correlates to the power consumed by the pump.

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