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801 Uppsatser om Adaptive pressure - Sida 35 av 54
Development of Liquid Cooling for PCs
In recent years, existing solutions for cooling personal computer CPUs have been supplemented by a new product category, factory sealed water cooling loops. These systems, consisting of a water block with an integrated pump, a fan and a radiator, perform well compared to the air cooling solutions but are less effective than larger, custom-built water cooling systems.This project aims to explore the most important aspects of a factory sealed system and to identify possible cost-effective enhancements of the performance.The most significant differences between the different groups of water cooling loops are the block design and the pumping power. The performance of both categories is also largely dependent on the fan power, but increasing fan power has a large negative impact on the noise level.Both radiator size and fan model choice appear, in tests, to be relatively unimportant, presuming that the noise level is kept constant. The position and direction of the fan, however, has significant impact on both the temperature and the sound level.Water blocks can be designed in several different ways, both regarding the heatsink design and the flow direction. In simulation, flow with the inlet centered above the heatsink result in considerably lower pressure drop and slightly higher temperatures than flow through the block, for heatsinks with fin arrays.Creating a competitive product in this product segment certainly seems possible, as there are performance-increasing changes to be made that seemingly has little impact on the production cost.
Sjuksköterskans trycksårspreventiva omvårdnadsåtgärder - En litteraturstudie
Syfte: Syftet med föreliggande litteraturstudie var att beskriva vilka omvårdnadsåtgärder sjuksköterskan kan använda sig av i det trycksårspreventiva arbetet. Syftet var även att granska urvalsmetoden som de inkluderade artiklarna har använt sig av.Metod: Artiklar publicerade mellan 2007 och 2013 söktes i databaserna CINAHL och PubMed. Resultatet baserades på tretton artiklar.Resultat: Resultatet utmynnade i fyra kategorier: 1) Riskbedömning; med användandet av ett riskbedömningsinstrument i det dagliga omvårdnadsarbetet minskade förekomsten av trycksår. Det framkom att sjuksköterskans kliniska blick var viktig för att upptäcka patienter med risk för att utveckla trycksår. 2) Tryckavlastande underlag; användande av tryckavlastande underlag var en viktig åtgärd för att förebygga uppkomst av trycksår.
Att delta eller inte : En enkätstudie om elevers icke deltagande i idrott och hälsa på gymnasiet
Background: Long-term stress can lead to reduced health among nurses which can result in impaired quality of care. Stress in nurses' work needs to be studied in order to prevent stress and impaired quality of care. Aim: The aim of this study was to describe nurses' experience of occupational stress and factors that contribute to occupational stress. Method: The method used was a literature review. Results: The analysis resulted in five themes which describe nurses' experiences of occupational stress and factors that contribute to occupational stress.
Livskvalitet hos personer med Irritable Bowel Syndrome
Background:Incoming medical alarm is a common routine for emergency nurses. Working in these situations may represent a major burden on the individual nurse. Purpose: To investigate emergency room nurses' experiences in receiving medical alerts focused on education, safety, security, skills and experience, and andherence to guidelines. The purpose was also to investigate whether there were any differences in action between the emergency room nurses who had worked longer or shorter period than two years with this.Method:The design was quantitative, comparative and descriptive. Surveys were distributed to 30 nurses who worked in the emergency room at a Swedish hospital.
"Konflikter bidrar till en levande verksamhet" : En kvalitativ studie om ledarskapets inverkan vid konflikthantering i privat och offentlig äldreomsorg
This study is based on interviews with four managers in public elderly care and four managers in private elderly care. The aim of this paper is to examine how these managers are experiencing their leadership in relation to conflict management, and if the managers leadership differs depending on private or public elderly care. Leadership and conflict management are theories that have been used in order to analyze the empirical findings. Previous research that has been used in the study concerns ?leadership/leadership styles?, ?conflict management?, ?to be active in the private/public elderly care?.
Interaktion med närstående till kritiskt sjuka patienter. : Vilka svårigheter finns?
Background:When the patient is critically ill the family is in a vulnerable position. The nurse's role is to support and help the family to find meaning in the difficult situation and to provide realistic hope. Balancing between the patient's and the family's needs is difficult. Knowledge about how nurses experience difficulties in the interaction with family is required in order to grant good care too critically ill patients and their family-members.Aim:To describe nurses' perceived difficulties in the interaction with family-members of critically ill patients.Method:The study is a qualitative literature-based study based on qualitative research. Results: The analysis resulted in four main themes; difficult disunion, environmental constraints, interpersonal difficulties and communicative difficulties.
Oljefilmens tjocklek mellan kolvring och cylinderlopp
Hägglunds Drives in Mellansel, Sweden, manufacture radial piston hydraulic motors foremostwithin applications in the industry. These motors have several sliding contacts, one of these, isthe contact between piston ring and cylinder bore. The radial piston hydraulic motors advantageis to produce high torque in very low rotation velocity, this result in that the maximum slidingvelocity between piston ring and cylinder bore, during the whole stroke, is very low. Theconsequence of this low sliding velocity is that the contact between piston ring and cylinderbore, during the whole stroke, is bound to the boundary lubrication regime. This result in, thatthe piston ring is exposed to wear, thus affect the service life of the complete hydraulic motor.To minimize wear of piston ring, it is essential to determine the oil film thickness between thepiston ring and cylinder bore.
Sjuksköterskors erfarenheter av att uppmärksamma, bedöma och hantera somatiska symtom och problem i det psykiatriska omvårdnadsarbetet
Background:Patients with mental disabilities are more prone to somatic illnesses than the general public. Unhealthier lifestyles and side effects of medication might be causes of conditions that lead to diabetes, cardiovascular diseases and premature death. According to the Social Board patients with mental disabilities receive poorer treatment than patients with only somatic diagnosis.Aim:The aim of the study was to describe nurses' experiences to identify, assess and manage somatic symptoms and problems within the psychiatric care.Method:The study is based on interviews with 12 nurses working in psychiatric outpatient and inpatient care. A qualitative content analysis was chosen.Result:The nurses performed nursing through talking, blood sampling and measuring for example blood pressure. They followed up side effects of medication.
Trycksår efter buklägeskirurgi : Prevalens, lokalisation, kategorisering och riskfaktorer
Bakgrund: Trycksår är idag en vanligt förekommande vårdskada. Få studier har gjorts gällande trycksår i samband med buklägeskirurgi.Syfte: Syftet var att undersöka trycksårsprevalensen bland patienter som genomgått kirurgi i bukläge och identifiera möjliga riskfaktorer för trycksår.Metod: En prospektiv deskriptiv studie med kvantitativ design. Datainsamlingen utfördes på neurokirurgiska och ortopediska kliniken under nio veckor, vid ett stort sjukhus i mellansverige. Hudobservationer och journalgranskning skedde på totalt 29 patienter. Frågeställningarna besvarades med deskriptiv statistik och analyserades med Mann Whitney U test och Chi2.Resultat: Var tredje patient som genomgått buklägeskirurgi utvecklade trycksår.
Elefantens könsorgan, reproduktion och embryoutveckling
Hydropericardium or pericardial effusion (PE) is the accumulation of fluid in the pericardial sac and is often secondary to pericardial diseases or diseases related to the heart. It is unusual with clinically relevant pericardial diseases in cats but pericardial effusion is the most common one.
Since PE causes serious symptoms and may lead to death it is important with a quick diagnosis and treatment. PE can be acute and cause cardiac tamponade, which gives severe clinical signs. Cardiac tamponade needs to be treated immediately or else the cat will die from cardiogenic chock. More common is chronic PE where the fluid accumulates during a longer period of time and the pericardial sac stretches.
Fruktkvalitet inom äppelodlingen : en studie av och för Äppelriket Österlen
The main purpose of this Master Thesis has been to investigate issues concerning apple fruit quality in orchards of Äppelriket Österlen. The goal has been to develop a document, for future benefit towards growers and company management in the production of high quality apples.In order to investigate main issues of fruit quality, focus has been on statistics concerning apple varieties, age of the apple trees, new planting, orchard size and growers opinions. Nine growers have been interviewed to investigate opinions and contribution of different growing techniques to increased fruit quality.
The investigation showed high age of the trees in production and low rate of planting of new trees. Differences in fruit quality were highest between small orchards. Most growers were satisfied with their fruit quality and with their own measures made to improve it.
Kortare sintid ? hur påverkar det kons mjölkavkastning, metabolism, hälsa, hull och vikt?
A shorter dry period length has in studies abroad showed some positive effects among high yielding dairy cows. Among other things it has been suggested that the periparturient metabolic stress becomes lower, that the fertility is improved and dry off becomes gentler for the udder, due to a lower milk yield. The milk yield is generally reduced during the first period after calving, especially among primiparous cows. The aim of this master thesis was to investigate how Swedish cows were affected by a shortened dry period, regarding milk yield, metabolism, health, body condition and body weight from two months before calving to some weeks after calving. Also plasma concentration of lactose during the period before calving was determined.
Vem kliar min rygg? : En studie av företagares uppfattning om personliga nätverk
AbstractPeople and organizations that network with one another have during the past decades, at a larger extent than before, replaced classical hierarchies. These networks have become increasingly important, as the globalisation has amplified the pressure for focused and flexibleorganizations. There is a risk of restraining the inventiveness of the firm and force customers and suppliers into cooperation by a too great commitment and dedication to the network. There are two sides to every penny, positive and negative aspects of networking.Concerning the negative approach to networking, there is relatively little theory present. The theory is regarded an emerging theory.
Migration av distribuerad relationsdatabas för lagring i webbläsare
An increasing amount of companies and organizations are starting to implement the use of cloud computing in their business. This trend results in that software, which was previously sold and distributed to the customers whom then had to install the software on their own computers, now is being replaced with Software as a Service (SaaS). SaaS makes software available through the customers? browsers, which results in that the service providers only have to administer a single application. The process to migrate a distributed application to a service delivered as a SaaS lacks sufficient investigation; this paper will provide some guidelines for conducting such a pro- cess.
Den globala uppvärmningen i skolans läromedel : En jämförande studie av sponsrade och förlagsutgivna läromedel
Today the talk about global warming and climate change are on top of the public agenda. There for schools and schoolbooks also debate the issue of global warming. A newcomer on the school stage is the sponsored school materials that studies show to be a growing phenomenon. In a debate like that of global warming which is filled with uncertainties and so much political and economic interest, I find it interesting to study how these schoolbooks talk about the issue.In my study I have tried to analyze and compare how school materials for primary school discuss the phenomenon of global warming. I have compared two different types of schoolbooks.