Sök:

Sökresultat:

2087 Uppsatser om Short reaction unit - Sida 7 av 140

Konstruktion av kassett och kalibreringsstation till jetprintern MY500

MYDATA automation AB is one of the leading companies in development of surface-mountingtechnology and stencil free solder paste applications. MYDATA?s MY500 is a jet printerdesigned for solder paste application on printed circuit boards. The jet printer contains a cassettewhich consists of a holder and a cartridge. There is also a calibration unit which monitors andcalibrates the application of solder paste.

Trådlös energiöverföring via elektromagnetisk induktion

This paper describes a method for wireless energy transfer via near-field electromagnetic inductionthat is inexpensive, simple and can be applied to almost any type of system, regardless of size andenergy demands.The method uses a primary unit consisting of an oscillator, amplifier and inductive coil thattransfers energy to a secondary unit consisting of a coil, rectifier and voltage regulator. Two typesof oscillators and several amplifier designs were realized and evaluated together with a multitudeof flat coils of both monofilar and bifilar type.The results show that it is important to use an oscillator whose frequency is dependent on theinductance of the connected transmission coil, such as the Colpitts oscillator. This is preferable toan oscillator with a preset frequency, such as a Schmitt-trigger oscillator..

Ansvarsförhållande kring förebyggande materielvård på förbandsnivå inom armén

The change in course recently taken by the Swedish Armed Forces results in an increased use of equipment, and thereby increased requirements of preventive maintenance. This paper aims to examine the current responsibilities for preventive maintenance in an army unit. The intended effect of this examination is to disclose possible flaws, and to help make routines for preventive maintenance more effective.The questions asked in this paper are;Who, in an army unit, is responsible for the routine maintenance?When is this responsibility valid?What demands does the technical service have on responsibilities for the routine maintenance?How are these demands met?How ought to be responsible for the routine maintenance?To answer these questions the author has chosen to use a descriptive method to show the current facts. A theorizing method is chosen to, from described facts, clarify the demands of the technical service on routine maintenance.

Definition av stötdämpares fyllnadsgrad

Shock absorber units play a key role in establishing the driving dynamics and performance of automobiles. Öhlins Racing has manufactured high-tech automotive shock absorbers for over 30 years. Öhlins Racing?s advanced technology has contributed to over 200 world championships in automobile racing. Öhlin?s manufacturing process has long utilized automated fluid filling equipment during the final shock absorber unit assembly stage. The filling process consists of vacuum pumping the shock absorber unit and subsequent transfer of fluid. Vacuum pumping is necessary to remove residual air from the shock absorber unit prior to initiating the liquid filling stage. The presence of undesirable gases drastically compromises the performance of a shock absorber. The filling degree, defined as the final ratio of air to oil, is determined by the specific filling protocol as well as the specific equipment utilized.The current investigation aims to develop a viable technique to accurately determine residual air content in shock absorber units. If the filling degree can be appropriately quantified for a specific manufacturing process, then the air/oil ratio may be quantitatively related to shock absorber performance. The utilized measurement method must be completely integrated into the manufacturing process to guarantee shock absorber performance specifications according to the manufacturer?s standards. By utilizing the measurement method developed in this work, the manufacturing process, manufacturing equipment and product specifications can all be tailored to provide improved filling conditions.The developed measurement method provides accurate quantification of the filling degree under a wide range of processing conditions. The method establishes the relative quantity of air in the shock absorber unit by performing in-situ compressibility tests. The fill ratio can be controlled and varied by manipulating the vacuum pressure exerted during the filling process. Performance tests, however, indicate no correlation between filling degree and unit performance..

Är euron en internationell valuta?

Denna uppsats syfte är att ta reda på om euron är en internationell valuta och omeuron kan konkurrera med dollarn om titeln som världens ledande valuta. Teori omvalutamarknaden, en valutas uppgifter och vad som avgör vilken valuta som användsinternationellt behandlas och för att kunna svara på uppsatsens frågeställningar (syfte)redogörs siffror på eurons internationella användning. Sådana siffror visar att euron ären internationell valuta då den används i valutans funktioner internationellt, men attdollarn fortfarande är den världsledande valutan utan att vara särsklit hotad i sinställning av euron..

PSQS ? Power Supply Quality Simulator

Kitron had wishes to be able to test and measure how disturbance affects their vehicle electronic units before they have been verified by SP Technical Research Institute of Sweden in Borås. This work started with the writing of a demand specification together with Kitron for a product PSQS, Power Supply Quality Simulator, which can generate some test pulses according to a standard for electronic units to Volvos vehicles. A design proposal was developed with the help the demand specification and was verified with the help of simulations. All electric schematics was designed with the guide of the design proposal. The pulses realized in the works of this thesis are those which Kitron experienced that they have a need to test in their own premises and which are possible to generate with the means available.

Decentraliserat lager - ett steg mot flexibilitet

This study was conducted at Glimek AB, a company that has chosen to decentralize its central storage unit in order to increase production efficiencies. The purpose of the study was to identify the problems in the production cycle that lead to the decision to decentralize the central storage unit, as well as identifying what the decentralization entails. The effects of the decentralization have not been analyzed in the study, and consequently neither financial nor production disadvantages have been considered.Appropriate questions were formulated based on the chosen underlying theories, and were asked to selected individuals with relevant knowledge. The study is based on the information that was gathered from interviews with management as well as staff within the company. In addition, supporting information such as flowcharts, drawings, orders and decision support documents were supplied by the company.

Chefsroll och ledarskap inom socialt arbete : En kvalitativ studie om enhetschefers syn på att vara chef inom LSS-verksamheter

This study is based on interviews with five unit managers working in the functional disabilities business. The purpose of this paper is to examine how these unit managers see their roles and their leadership, and to give the reader an insight into what it might entail to be a manager in social work. Theories applied are the role theory and three leadership theories. The previous research this study made ??use of affects ?leadership in social work" and "manager's role and leadership style."Being a unit manager of the functional disabilities business means having a so-called middle management position, which entails expectations being directed upon them from various avenues.

Socialsekreterares syn på bemötandet och relationen med klienter - en jämförande studie av försörjningsstöd och missbrukarvård

Our aim with this study is to explore socialworkers perception of what is a good treatment is and how to establish good relationship with their clients. We have decided to limit our study with social workers in Economic assistance and Abuse Units in social servises and explore if we can discern any differences between the units. We have chosen to use qualitative methods to achieve the aim of this study. We interviewed a total of seven social workers, of which three were from Abuse unit and four were from Economic assistance unit. One of the theoretical frame we have used is Goffmans (1970, 1974) theories about social interaction in which he explains the social encounter between social workers and clients.

En vandring genom Skymningssagors land : Samhällskritik, konst, natur och saga i Gustav Sandgrens Skymningssagor

Abstract The aim of this study is to create a pathway through Gustav Sandgren?s short-story collection Skymningssagor and the second collection with that title, based on his social criticism, notions of art and nature, use of fairytale motifs and finally, his view of the metaphoric liberation of mankind. The study is based on a comparative and thematic investigation, illustrated by examples from Sandgren?s short stories. The theoretical framework is based on Eva Nordlinder?s study of the art fairytale in Sekelskiftets svenska konstsaga och sagodiktaren Helena Nyblom (1992) and Konstsaga och Kultursyn (1992) as well as Torben Brostrøm?s study of the folktale in Folksagan och den moderna litteraturen (1992). The investigation shows that Sandgren?s social criticism permeates his short stories, but that his keys to salvation, nature and art (first and foremost music) exist to help mankind rise above our shackles. The investigation also shows that Sandgren?s short stories are firmly placed within the tradition of the fairytale and the romantic notion of a relation between nature and man.  Keywords social criticism, fairytale, nature, music, art, liberation.

Korttidssjukfrånvaron Vård och Omsorg Öster : vad kan den bero på och hur skulle den kunna minskas

The health care sector Öster has the highest average absence due to short-time sickness in Örebro. It is the short-term absence that has the highest costs for the organisation, not just in money, but also in quality disturbances and administrative work. Health care sector Öster is divided into four areas with a manager for each. We have chosen to conduct our research within the special housings in area one and four, since these two had the lowest and highest short-term absences.The purpose with the research is to examine short-term absences among the health care personnel in the health care sector Öster, see what the absences depend on, and what can be done to solve the issue. We will compare the absences in the area with the highest respectively lowest short-term absences in order to see if there are any prominent differences between the two.

Evaluation of specificity of a walnut antiserum and detection of English walnut (Juglans regia) in food with ELISA and Real-Time PCR

Nuts of all kinds are common ingredients in food. For nut allergy sufferers the frequent use of nuts cause problems and "hidden" nuts in food products may elicit allergic reaction when such foods are consumed. Methods for detecting and quantifying walnut (and other nuts) with high sensitivity and specificity are therefore very important.The objective of this project was to verify the specificity of a rabbit antiserum against walnut with immunodiffusion and to determine the size of the dominant walnut antigens with Western blotting. In addition, a commercial sandwich ELISA for walnut quantification was validated and compared with a qualitative real-time PCR.The rabbit antiserum proved to be less specific but after absorption with cross-reacting nuts and seeds it showed high specificity. The ELISA kit reacted, except for walnut, with pecan and slightly with other nuts and seeds tested.

"Got Skills...?" : En kvalitativ studie om kompetensutveckling baserat pa? StarCraft II

The use of computer games has grown exponentially in the past few years and StarCraft II is one of the most popular e-sports today, played by millions of people worldwide. This study investigates the game?s effect on skills, as perceived by the players of StarCraft II.The study was conducted by using an empirical survey and interviews. The skills being investigated were both physical and mental in their nature. The conclusion was that the majority of players perceived that their skills regarding reaction speed, multitasking, APM, analysis and strategy were increased the most, while there was a smaller change in social skills and language skills.

Mätning av barns oro vid undersökning eller behandling på sjukhus

Att barn kan vara oroliga vid sjukhusvistelse har framkommit i flertalet studier. Oro kan påverka smärta och tvärtom. Minnen av smärta kan skapa oro. För att bedöma barns oro finns ett par instrument. Ett av dessa är State Trait Anxiety Inventory for Children (STAIC-S), en enkät med 20 påståenden, där barnen får fylla i hur de känner sig.

Flygbesiktning av Luftledningar : Modellering av samband mellan besiktningsanmärkningar och systemtillförlitlighet

This paper thoroughly investigates needs and requirements for overhead distribution feeder inspection and develops models to investigate possible relations between short term inspections remarks and outages. The study was conducted in collaboration with Fortum Distribution AB that supplied extensive information about their overhead power feeders concerning both inspection and power outages. The investigated models where lognormal linear model, Poisson generalized linear model and negative binomial generalized linear model. All models were implemented utilizing offset terms to compensate for differences in feeder length and amount of overhead versus underground feeders. The Poisson generalized linear model was rejected at an early stage due to overdispersion and neither of the remaining models fit the data perfectly.

<- Föregående sida 7 Nästa sida ->