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745 Uppsatser om Oscillating pressure - Sida 34 av 50
Trycksättning och dimensionering av brandhiss för berganläggning
This thesis deals with the design of a combinated rescue-, personal-, and firefighting elevator for a nuclear waste storage facility to be constructed by the client SKB, Svensk Kärnbränslehantering AB. SKB:s mission is to dispose of all nuclear waste from all swedish nuclear power plants. The storage facility will be built in the rock 450 m under the surface and will consist of several kilometers of tunnel where capsules containing the nuclear waste will be placed. It will also hold a central area which contains spaces necessary for the operation and construction of the facility, such as elevator hall, storage hall etc. The facility will have two ways of access: a vehicle ramp and an elevator shaft.
Reklambyråer & Samhällsansvar : en studie av reklambyråers förutsättningar för ett socialt ansvarstagande
Background: Research results show that the potential of corporate social responsibility (CSR) has increased. That means there is a growing pressure on Swedish companies to act with responsibility: general public has a positive attitude towards companies that communicate their CSR. Advertising agencies have been criticized by their way to manage the question of social responsibility. One of the characteristics of an advertising agency is their anonymity; even though their products are extremely visible, it is rarely clear who gave rise to an advertising production. If this is put in relation to CSR in general, we find ourselves in a contradictory situation when CSR in many cases is about exposure of the responsible corporation.
VEM ÄR EN BRANDMAN? : En kvalitativ studie om brandmäns syn på jämställdhet och jämställdhetsarbete.
Gender equality and gender equality work is relevant for today's working life, and previously male-dominated occupations may be increasingly under pressure to become more equal. This paper aims to explore and understand how the firefighters at a station are experiencing gender and gender equality in rescue services.Using theories of how sex is done, how a power perspective and a structural approach can show men's and women's different conditions in an organization, and theories that are more specific to gender and change management the firefighters talk about gender and gender equality are analyzed. Essay results were collected through interviews with seven firefighters and then analyzed and interpreted with the help of theories.The analysis shows that there is a perception among the firefighters that men and women are biologically different and that required physical strength legitimizes the exclusion of women. Inequality is seen as something natural and by pursuing an active gender equality women are given unwarranted benefits. When physical strength becomes a legitimate reason for exclusion, the responsibility for gender inequality is put on women and that women don?t have what it takes.There is also a resistance against gender equality analyzed in the paper, and it's stated opposition seems to be directed against the management's way of recruiting women.
Ledarens roll inom privat respektive kommunal handikappsomsorg : En kvalitativ jämförande studie mellan ledare inom privat och kommunal assistansverksamhet
AbstractSince the Act Regarding Support and Service to Certain Functionally Handicapped Persons (LSS) were introduced in 1994, social care and service have increased inSweden(SFS 1993:387). The implementation of the act has caused many changes and also progress within the social care system. One main change is the division between public (provided by the municipalities) and private care providers. This division has led to many questions about how leadership is organized within different public and private organizations.The purpose of this study is to investigate differences between leader?s experiences of their role and working conditions within private and public assistance care for disabled.
Det finns en hel karta av påverkansmetoder : Gymnasieelevers påtryckningar i betygssättningsprocessen
The setting of pupils' final grades in the Swedish upper secondary school system is the responsibility of their teachers and once grades are set, they are not open to appeal. This can be compared with the British system where an external, central examination board sets the final grades based on the result of externally marked examinations (A-levels). These grades are then open to appeal if it is felt that an injustice has been made.This research paper has been an investigation into how pupils in one Swedish upper secondary school attempt to influence their teachers in the grade-setting process and how these teachers are affected by these different methods. Five teachers in total were interviewed in a qualitative case study. The study has also taken up the controversial issue of how grades, which are set individually by thousands of teachers across the country, can be deemed to be fair and equivalent.The study revealed that pupils employ many different methods when trying to influence their teachers in the grade-setting process e.g.
Termisk Vattenpump
This degree project aims at developing a concept for how to use solar energy to pump up water. The target audience is people living in areas where the functioning of the electricity and water network is absent. In these areas, the hand-powered water pump is the most common technology. The degree project's goal is to find an economically viable alternative to the time consuming hand-powered water pumps. The power comes from solar energy.
Att vara eller inte vara motiverad och kreativ i teaterprojektmiljö : En undersökning av motivationsfaktorer och kreativitet i en teaterorganisation.
Abstract Project as a method was defined in the American defense industry in the 1950´s and has since then developed to encompass many different areas such as industrial management, administration, research and development and IT etc. In the cultural sector project is a common way of organizing work and within theatre, which is the focus of this study, one can claim that project as a form of work has been used for hundreds of years, if not by definition.Theatre is generally assumed to be an form of art representing creativity and innovation, highly demanding from an individual perspective relative to the project result, i.e. the final performance. Time pressure, fierce competition, limited resources and responsibility to deliver on time with high quality are natural conditions given.The aim of the study is to find out what circumstances and conditions affect and have a clear impact on motivation and creativity in those working professionally within theatre.This study is based upon qualitative interviews with a limited number of employees with different occupations, within a major publicly-funded Swedish theatre institution.Contemporary research indicates both intrinsic and extrinsic motivation as essential for how we experience and commit ourselves to our work, either as two separate forces but also as they interact.Extensive studies further state our individual experience from work, the conditions provided by the organization and social environment as crucial to our work performance. A positive experience from these factors enhance our motivation and creativity.The results of this study show theatre to be an activity supported by strong visions and clear goals where challenge and creativity are essential and where it´s members show strong commitment to the task whether they are beside or on the stage..
Mots?ttningen mellan statlig intervention och tradition: En kvalitativ fallstudie av barn?ktenskap i Nam Dich Vietnam
Using interviews conducted within the municipality of Nam Dich, Vietnam, this qualitative study explores how ethnic minority parents and children navigate around the state's supervision in order to preserve their traditional practices of child marriages. Moreover, the research explores the roles and expectations between individuals within an ethnic minority family as a collective unit. Using governmentality supported by the concept of state evasion, culture bearers and empowerment, I argue that understanding child marriage as a phenomenon requires analysis of cultural context. The paper starts with an introduction of the ongoing relation between the Vietnamese state and ethnic minority traditions related to child marriage. While the Vietnamese state ?s modernization projects aim to empower individuals by creating more freedom within the process of marriage and increasing the opportunity for education and work, certain ethnic minority groups want to uphold their cultural ways of marriage when parental arrangement occurs from an early age.
Syntes och egenskapskarakterisering av volframoxid framställd med magnetronsputtring
The system tungsten-oxygen has potential of being suitable for decorative coatings since ceramic coatings are often hard and wear resistant, and since modulations in oxygen content or incorporation of small ions could give bright colours. The aim of this report was to investigate the relationship between process parameters and the properties of the films, with the wear resistance being of special interest.Samples with tungsten to oxygen ratios in the range of 100:0 to 25:75 at% were made using reactive sputter deposition, either with constant gas flow, or gas flow controlled by optical emission of the plasma. The hysteresis of the system, which means that a certain gas flow will cause different pressure and/or target voltage depending on in what way the flow is reached, makes it interesting to control the process where the system makes the steep change from metallic tungsten to ceramic tungsten oxide. This is difficult and thus requires precise control equipment.The samples were analysed using X-ray diffraction, X-ray photoelectron spectroscopy and an empirical wear test suitable for small components like cell phone cover for example, in order to characterize the structure, composition and wear resistance of the coatings. The results could be divided into three groups: (I) tungsten-like, with very low oxygen content; (II) mixed phase and (III) tungsten oxide like, with oxygen content close to 75 at%.
Private Label-tillverkning : Faktorer som ligger till grund för att leverantörer på den svenska marknaden tillverkar private label
Background: In the past 10 years private label has increased significantly in the Swedish grocery market. This is an important strategic event, which is a great challenge to suppliers as it causes stiff competition. To handle this situation an increasing number of suppliers have to make the decision whether to produce private label or not.Purpose: The purpose of this study is to find and analyse factors that influence suppliers in the Swedish grocery market to produce private label. On this basis we intend to confirm or develop existing theories within the field of study.Research method: The study has a qualitative approach where empirical data has been gathered through interviews with suppliers and retailers in the Swedish grocery market.Results: This study has identified factors that underlie suppliers? decision to produce private label.
Sambanden mellan inandningsbara, grova och fina partiklar i luften och strokeanfall i Malmö
In the western world, strokes are the third most common cause of death, hitting mainly the elderly population. Smoking, high blood pressure, diabetes and overweight are known risk factors for causing strokes. Previous studies show that an increased level of particulate matter, PM, is also related to an increased number of strokes. The population in this study consists of patients over 65 years old who live in Malmö. Levels of particulate matter were measured from October 2004 to April 2005 at a central outdoor monitoring site in Malmö.
Flaskmatning och andra faktorer som påverkar mellanörats miljö hos barn : -Stödjande hälsoundervisning till närstående
Introduktion: Sekretorisk media otit (SOM) är den vanligaste öronsjukdomen och uppkommer oftast i efterförloppet till akut media otit (AOM). Om barnet får SOM leder det till hörselnedsättning som kan påverka språklig utveckling och ge beteendeproblem. Etiologin bakom SOM anses vara multifaktoriell. Barnets tryck i mellanörat kan påverkas vid flaskmatning. Allergier, bakteriella/virus infektioner och inflammationer har också betydelse för utvecklandet av SOM.
Mätdatainsamling
Rapid Granulator is one of the world's largest producers of granulators, which is a kind of grinderwho grinds discarded plastics to granules which later can be reused when pressure molding plastics.The company wanted help in developing a new, or alternatively extending their previous,measurement equipment. The old equipment was hard to use, required changes in the code fordifferent measurement scenarios and had a limited array of measuring quantities. Rapid had an ideaof a similar concept only with a greater number of input ports, better range of applicable sensors andan advanced yet easy to use interface. The system is supposed to be placed at Rapid's test departmentwhere it will be used as a tool for finding faults and provide data which can be used for furtherdevelopment of the granulators.The project's members accepted the task and immediately began searching for suitable componentsfor the system. After the search was completed a list of costs, limitations, sensors, I/O's anddevelopment environment was presented to Rapid's staff.
Anestesi och intensivvårdssjuksköterskans hantering av mekanisk ventilation : - en litteraturstudie om minskning av atelektasbildning och förebyggande av komplikationer
Background Atelectasis is a commun respiratory complication related to general anesthesia and may contribute to pneumonia and acute respiratory failure. Atelectasis apear within 10 minutes after anesthetization and occur in 90% or more anesthezied patients regardless of age and gender. The aim of this study was to indentify if there are any evidence for which methods are ultimate or are most efficacious to reduce and prevent the formation of atelectasis. Methods This study is a descriptive litterature study where 28 scientific studies have been indentified for review and analysis. ResultsThe use of 100% oxygen during the induction of anesthesia favors the developement of atelectasis. This can be prevented by preoxygenation with oxygen content of 100% combined with a PEEP of 6-10 cmH2O. When free airway is secured, oxygenation with 100% was found to be unnecessary.
Utrustning för automatmontering av ackumulator
This report deals with an exam report written by Olle Hjalmarsson and Thomas Likar, students at Högskolan i Halmstad. The project was carried out for Haldex Traction AB in Landskrona whose business consist of manufacturing automatic all wheel drive systems (AWD-system). These systems consist of a plate clutch which activates all four wheels of a 4-wheel driven vehicle. An important component in these clutches is the accumulator which basically consists of a piston under the load of a spring which creates an oil pressure with the help of an electric motor used for actuating the clutch.At Haldex difficulties has been experienced regarding the assembly of the accumulator parts due to the small tolerances between the piston and the hole of the accumulator in the cast aluminium housing. Attempts have been made to assemble the parts in existing robot cells.