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1117 Uppsatser om Pressure reducing valves - Sida 5 av 75
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.
A Business Perspective on Reducing the Climate Impact from Tetra Paks Transportations of Goods
Title: A Business Perspective on Reducing the Climate Impact from Tetra Paks Transportations of Goods. Authors: Pär BerglundSebastian Lyngström Supervisors: Lars J Nilsson, Environmental and Energy Systems, Lund UniversityNils Månsson, Department of Business Administration, Lund University Problem Analysis: Increased awareness concerning climate change will put pressure on companies to reduce their climate impact. Problems arise when trying to reduce the impact from transportations due to companies? limited control on forwarding agents and difficulties measuring the emissions. Purpose: From a business perspective, this report will enable a reduction of the climate impact that arises from Tetra Paks transportation of goods.
VVA-strategier för avgastemperaturhöjning på en HD-Dieselmotor
Regulations on the exhaust emissions of HD-diesel engines are becoming more and more stringent, and therefore, emission after-treatment systems are commonly used. These systems rely on catalytic conversion of NOx,CO , and HC emissions, and are thus dependant on temperature. At low load of the engine, exhaust temperatures are not sufficient for the after-treatment components. Therefore, means to increase the exhaust temperature while maintaining low emissions and fuel consumption are needed.The focus of this project has been to develop strategies for the lift profiles of exhaust and intake valves in the engine, with the goal to raise exhaust temperature in combination with low emissions and fuel consumption. The strategies have been tested in a single-cylinder research engine equipped with a hydraulic variable valve actuation system.
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.
Utvärdering av CTI på virkesfordon : ? CTI-projekt Holmen Skog/Örnfrakt 2005-2006
The low bearing capacity of roads during the spring thaw and periods in the autumn leads every year to increases costs for Holmen Skog. To reduce costs and increase accessibility
Holmen Skog decided to install and test a CTI-system. Central tire inflation (CTI) is a system that makes it possible to monitor and vary a vehicle?s tire inflation pressures from the cabin, while the vehicle is in motion. When tire pressures are reduced, the area of the contact surface between the tire and the road increases, thus reducing the ground pressure.
The purpose of this study was to evaluate the CTI-equipped vehicle and analyze if the CTI technology is economical defensible during the thaw 2005.
Plötslig spädbarnsdöd, ett känsligt ämne : En litteraturöversikt om risker, förebyggande åtgärder och sjuksköterskans roll vid SIDS
Background:The sudden infant death syndrome (SIDS) has always existed. In the early 1990's, researchers discovered that prone position was associated with a significantly higher risk for SIDS. This resulted in a lowered incidence of SIDS in the world. The campaign showed the value of risk knowledge and risk reducing methods, that's why new information campaigns about other risks regarding SIDS must occur.Aim:The aim was to describe the risk factors and preventive actions for SIDS, and the nurse's role regarding the preventive work. Method: A literature review based on 16 articles based on qualitative and quantitative studies.
Utveckling av programvara till ett inbyggt styrsystem
This thesis considers the development of the software for an, newly developed, embedded real-time control system, based on a Periferal Interface Controller (PIC). The control system is developed to be used for several different applications. In this thesis work, software for two different applications are developed. The first task is a time controlled system, while the other task is implementation of aPI-/PID-controller. A user interface is also developed and implemented.The time controlled system is an automatic horse feeder, which is used for feeding horses at certain predefined points in time.
"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.
H?llbarhetsprestation och finansiell volatilitet. En studie om sambandet mellan ESG-po?ng och aktievolatilitet
This paper aims to explore the relationship between financial risk and ESG scores in order to assist investors in making investment decisions. We investigate the hypothesis that there is a relationship between the ESG score of a company, and the financial risk in terms of volatility in the relevant company?s share price. The paper is grounded in sustainability reporting and financial risk. With the world facing significant changes and natural disasters, there is an urgent need for action to mitigate environmental impacts to avoid devastating consequences.
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.