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2603 Uppsatser om Constant current regulator - Sida 18 av 174

Skattekonsekvenser av generationsskiften i fåmansföretag : -En analys av befintliga regler

A change of generations occurs several times during a company?s lifetime. It is a process that requires planning and time. If the current owner wants to keep the company within the family, he has two options; he can either sell the company to a family member, or give the company to the new owner, like a gift. When the owner sells the company, it is common that he accomplishes it to a losing price.

Öronhåltagning hos frisörer och i guldsmedsbutiker i Umeå : Egenkontroll, lokal och hygien

Ear piercing performed in hairdressing salons and jewellery shops using a piercing gun has been set aside from the obligation to notify the local environmental and public health authorities, due to the use of disposable cassette with the piercing gun. According to the Swedish environmental code each practitioner are required to prevent any health hazards arisen from the operation. Local bacterial infection is the most frequent complication associated with the ear piercing procedure and to prevent the potential risk of such an event, hygiene conditions in both the premises and in procedures are essential. The purpose of the report was to examine the presence of ear piercing practitioners in Umeå and their current hygiene conditions. The study consisted of interviews with employees and managers on site whose answers was evaluated and compared to the general recommendations of The National Board of Health and Welfare.

Drivning och reglering av en mikropump

Rapporten fokuserar på MY500 som är en jetprinter som skjuter lodpasta påkretskort utan att beröra den. Syftet med rapporten är att undersöka möjlighetenatt ersätta den nuvarande skruvpumpen med en spiralpump. Intentionenär att utarbeta en prototyp där spiralpumpen drivs av en positionsåterkoppladlikströmsmotor (DC motor). Prototypen används för att verifierafunktionen hos den tidigare oprövade spiralpumpen och för att fastställa om enstandard DC eller växelströmsmotor (AC motor) kan användas för att ersättaden befintliga stegmotorn.Arbetet börjar med en undersökning av olika motortyper för att sedanskapa en Matlab/Simulink modell med den valda motorn och parametrar förfriktion och tröghetsmoment. Genom simulering används modellen för att undersökaolika reglerstrategier vilka omfattar både hastighets- och positionsreglering.Olika samplingsfrekvenser analyseras för att hitta en lämplig regulator.Prototypen används för att verifiera regulatorns beteende och för att fårealistiska systemparametrar.

A literature study and survey of sycamore maple (Acer pseudoplatanus L.) in southern Sweden

Sycamore maple (Acer pseudoplatanus L.) is a common broadleaved species throughout Europe, however often of minor interest to the forest sector. There is currently a lack of research on sycamore maple, and some of its characteristics have throughout history contributed to a negative reputation in both literature and the forest society. Since broadleaved species in general are of great importance to the forest sector in Europe and presumably of enhanced significance in the future, deepened research is needed and particularly Swedish. With a desire to hopefully increase the interest for sycamore maple, was the objective of the study to examine the current status of the sycamore stands in southern Sweden. The study was carried out both as a survey with inventory field work and as a literature study. Parts of the latter mentioned is also presented in the introduction. The study shows that the majority of the sycamore stands in Sweden are growing well, producing fairly high qualities and volumes.

"Hörre ni grabbar" : En studie om hur pedagoger bemöter pojkar och flickor i ordningsskapande siuationer.

Previous research studies have shown that teacher?s attitude towards girls and boys rather reinforces, than counteracts behavior as stereotyped gender concepts. Order and discipline seem to be important parts of the daily routines in school context and to maintain discipline a constant communication and dealing with pupils are in order. The purpose of our examination aims to study how teachers respond to boys and girls in situations like creation of order. The analysis is based on observations of the interaction that takes place verbally and none verbally between pupils and their teachers in creation of order situations.

Inhyrning av maskintjänster : ett alternativ till att använda egna maskiner vid vallskörd?

The economic conditions for Swedish dairy farmers are constantly changing. The numbers of producers are declining and the economic conditions for dairy production are weakening debilitating. To improve the economic situation for a farm a hired contractor is a possible solution since previous studies show that machinery cooperation may be beneficial for the farmers. The aim of this study is to examine the possibility for farmers to cut costs by hiring a contractor for harvesting silage. A comparison between using own machinery and hire a contractor is the starting point of this study. Another aim is to discuss the farmer?s decision process when achieving today?s situation and to determinate what factors affect their decisions. The study is based on cases selected from four farms that today have chosen not to or only to some extent, hire a contractor for harvesting silage.

FN:s Milleniemål och deras påverkan på den svenska biståndspolitiken

The purpose of this thesis is to study to what extent the UN millennium development goals have influenced Sweden?s development policy. The research method that I have used is a qualitative text analysis and I have studied the ideas in governmental texts and millennium development goals reports from 1995-2008.My hypothesis is that the basic ideas that has symbolized Sweden?s development policy has not changed much since the adoption of the millennium development goals in year 2000. This hypothesis is based on different ideas that the basic perspectives in international development policy are rather constant.My conclusion is that many of the areas that are affected by the millennium development goals already are prioritized areas within Swedish development policy, for example poverty reduction and gender equality.

 EU, "Unity in diversity" eller en klubb för privilegierade medlemmar?

The primary purpose of this thesis is to investigate the operation of membership criteria, which are applied against countries that wish to join the European Union (EU). More specifically, the importance of some criteria in comparison to others is considered. To answer this proposal, three questions are posed: What are the EU membership criteria? Are some criteria more important than other criteria? Does the EU treat candidate countries differently in applying the membership criteria? Three countries are used in this analysis, each country representing one recent enlargement round: Poland (2004), Romania (2007), and current candidate country Turkey. Both official documents, such as EU treaties, and unofficial documents such as statements from EU leaders are used to analyze the application of membership criteria.

Momentbärförmåga för semikompakta ståltvärsnitt av HSQ-balkar : En modell för interpolering mellan eurokodens klass 2 och 3

The current standards for design of steel beams are divided into four classes based on the slenderness of cross-sectional parts. Depending on the section class a beams load capacity is either determined by a plastic, elastic or a reduced elastic model. The division between cross-sections calculated by a plastic and an elastic model is today done in a very harsh way with no smooth transition. This leads to a large difference in the calculated resistance for the sections located near the class limits. Elasto-plastic sections are in the current situation calculated as purely elastic and their large plastic reserve is not considered in the current standards.

Green IS ? a Systematic Literature Review

This thesis provides a systematic literature review of a selection among current papers andarticles on Green Information Systems (IS). The main focus is on the current state of Green ISin academic research. This study aims at gaining a deeper understanding and a clearer view ofthe state-of-the-art of IS for environmental sustainability research, with the goal of clarifyingthe diffuse idea of what Green IT/IS is, and what differentiates Green IS from Green IT.To support the objective of this study, the articles selected for data analysis were collected byusing a systematic literature review as research and analytical method. Within the thesis, adescriptive angle with an interpretative character is used to analyse the data extracted.A theoretical framework based on concepts from sustainability, Green IS and Green IT isemployed in order to analyse and compare terminologies and frameworks used in the studiedarticles. Furthermore, the different dimensions of sustainability and the various terms used todescribe Green IS are analysed comparatively.The result and analysis are discussed in a conclusion confirming the on-going ambiguity ofthe terms Green IT and Green IS and the transformative power of IS.

En undersökning av framtidametoder för att säkra förband i produktion

The thesis is an examination of the methods that are appropriate and long-term choice to obtain clamping force and secure screw joints in production. The employer, Scania CV AB, transmission manufactures axle gears to all trucks produced in Södertälje. One of the most common assembly elements is screw joints, where the clamping force is essential to achieve a secure joint. Current methods to secure the joint is due much of the friction effect and is an indirect method to measure the clamping force. The clampforce accuracy becomes more widely with torque angle control.

Hur fungerar en glaselektrod?

To understand the glass electrode needs knowledge from more than one level. The construction ofthe glass electrode is one part, an other is the composition and structure of glass. The Nernstequation have an important role, but also the sources of errors in the analysis and the calibration ofthe glass electrode. Focus for this article is how the glass electrode really works and how Gibbs freeenergy made the potential dependent of the concentration of H+and gives the logarithm to thefunction. Nikolskii's ion exchange theory starts to explain the question about how the potentialcreates and Baucke's dissociation mechanism made it more explicit.

Europeisk identitet

European identity is a topic constantly debated around Europe. There are many takes on whether there is a European identity and what the European identity consists of. In the European Union the Commission has worked towards developing a common European identity since the middle of the 1970?s. The development of a European identity is an important part in the commission?s quest to tie the union and its people closer together.

Förslag på riskklassificeringsmodell av ekologiskt kontrollerade aktörer : En jämförelse med andra länders ekologiska kontroll

In order to facilitate trade between EU members, the European Committee has created regulations that will govern supervision of organic products. Every regulatory agency shall, according to the European Committees regulations, carry out a risk classification of each organic producer they regulate. This study for The National Food Administration compares regulation of Swedish organic products with other countries, and aims to produce a simplified model based on risk that can be the beginning of the risk classification model that Sweden in the current situation don?t have. The thesis is based on three questions: 1) What criteria should we use for assigning organic food producers? 2) How do selected European countries and frontrunners rate organic producers and what can Sweden learn from them? 3) How might a national classification model of organic production look in order to ensure an equivalent level of regulation and prevent competition among private inspection bodies? A review of information gathered from the different countries gave differing results.

Proportionalitetsprincipen : En studie av dess inverkan i LOU

The principle of proportionality is considered one of the most important contemporary legal principles on which it intends to protect individual citizens against disproportionate action by the authorities. This aroused our interest prior to this study. The essay reveals how such behavior might look like and how courts have chosen to adjudicate in cases where the individual has been discriminated against or subjected to unreasonable demands in public procurement. That section of the law that were current throughout all court cases are Public Procurement Act (2007:1097) LOU. That which we have seen in every court case is that the applicant has not received a proper fair chance when the requirements of the contract often been asked in a way that either exclude the smaller applicant company or rule out various potential applicants parties due to excessive and sometimes unnecessary requirements.

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