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992 Uppsatser om Redesign circuit board - Sida 25 av 67

Avbrottsfri Kraft med användning av ultrakondensatorer

The supply of uninterruptible power can be applied to many areas wherecontinuous operation is highly prioritized.The application of uninterruptible power for motor operation is facilitatedusing a frequency converter. Direct current operated frequency converters canbe applied directly to the power reserve which removes the need for additionalpower-converting.Batteries have long constituted the power reserve but advancements inthe development of ultracapacitors have created a viable substitution. Ultra-capacitors have high energy storing capabilities and can be applied to highpower applications.Maxwell is a leading manufacturing company of ultracapacitors and pro-vide different modules with built-in solutions for voltage balancing. Unevenvoltages between series-connected capacitors is a phenomenon caused by vary-ing capacitance. A configuration containing Maxwell?s 56V module is createdand constitutes the power reserve in the simulations.The discharge simulation shows a significant current that could damagethe system.

Arbetet med iPad i förskolan : En undersökning om hur man arbetar med iPads i en mellanstor kommun

Researchers, planners, and government agencies agree that road safety for children must be a priority and in particular that children should have a safe and secure way to travel to and from school regardless of age or the distance travelled. In Sweden, child traffic safety is a key part of the country?s Nollvision, a long-term traffic policy goal of ?no deaths or serious injuries?. Unfortunately, many countries have recorded increases in child traffic accidents as the percentage of parents who drive their children to school and thus congestion around schools has increased. Common strategies include traffic safety education for children, the redesign and improvement of traffic infrastructure, bicycle training, and carpooling.This thesis assesses the traffic problem around Ludvigsberg School in the district Valbo in Gävle, Sweden.

Direktsamplande digital transciever

Master thesis work at ITN (Department of Science and Technology) in the areas of A/D-construction and RF-circuit design. Major goal of project were to research suitable possibilities for implementations of direct conversion in transceivers operating in the 160MHz band, theoretic study followed by development of components in the construction environment Cadence. Suitable A/D- converter and other important parts were selected at the end of the theoretic study. Subsampling technique was applied to make A/D sample requirements more realistic to achieve. Besides lowering requirements on A/D-converter it allows a more simple construction, which saves more components than subsampling adds.

Rättsäkerhet i den psykiatriska tvångsvården : Lagstiftning och tillämpning

This study examines whether or not there are inherit flaws in Swedish legislation concerning psychiatric institutional care, or in the application of the act, which might lead to the failure of rule of law for the private citizen. Law (1991:1128) concerning psychiatric institutional care in certain instances (LPIC) aims to establish rules which will ensure rule of law for the mentally ill in case of psychiatric institutional care. Despite this, there are legal cases which indicate that these rules, and their implications, are not always considered at the psychiatric wards.The questions at issues which this study aims to answer are thus: Are there any deficiencies concerning rule of law in LPIC 2?3 §§, 4?6 §§, 7?10 §§,15?25 §§ and 32?33 §§ ? This section focuses on LPIC and its design. Whether or not the act adheres to rule of law is examined through a definition which has evolved through discussions of concept based in Peczeniks definition of rule of law.

Engagemang, oro och påverkan : En studie om närbyråkratens roll på Migrationsverket

The aim of this thesis is to examine how personnel working with asylum cases at the Swedish Migration Board handle their role as administrators of asylum. For the study 7 asylum administrators were interviewed and the analysis was made with influence from the method critical discourse analysis. To understand the themes in the analysis I have used Michael Lipskys theory about street-level bureaucrats. Main results from the analysis of the interviews were that the street-level bureaucrats had certain strategies for managing the difficult aspects of the job. The interviews also showed that the participating informants had difficulties with different identity positions..

Hallmöbel för förskolor

I have together with Frimeko AB developed new hallway furniture for preschools. The background to the project is the fact that all the existing hallway furniture?s on the market today have a similar design and same features. None of the furniture stands out immediately. Companies who work with school furniture in general have been inspired by each other, and therefore is the collections monotonous.

Produktion av marknadsförings- och korrespondensmaterial för DUCIS

The report describes the production of graphic correspondence and marketing material for DUCIS(Dalarna University Centre for Irish Studies).A logotype symbol is created on the basis of an element from the Celtic art, and a graphic material thatharmonies with this ideal of style is built around the symbol. A unique visiting card, correspondence cardand letterhead is produced to strengthen the identity of DUCIS outwards.The work proceeds with an international education folder which is an important element in the marketingwork for the MA-education which starts in the autumn of 2003. Two posters, one for the opening ofDUCIS in may 2003 and one for a conference in 2004, are produced. Finally, a redesign of the book coverfor NIS, Nordic Irish Studies, is carried out.The report describes the working process consisting of meetings, practical work and other elementswithin the process. The conclusion is that the work has been quite successful and that this, to a largeextent, depended on an engaged and supporting commissioner.

Åtgärder för att skapa säkrare hämtning och lämning vid skola : Undersökning vid Ludvigsbergsskolan i Valbo

Researchers, planners, and government agencies agree that road safety for children must be a priority and in particular that children should have a safe and secure way to travel to and from school regardless of age or the distance travelled. In Sweden, child traffic safety is a key part of the country?s Nollvision, a long-term traffic policy goal of ?no deaths or serious injuries?. Unfortunately, many countries have recorded increases in child traffic accidents as the percentage of parents who drive their children to school and thus congestion around schools has increased. Common strategies include traffic safety education for children, the redesign and improvement of traffic infrastructure, bicycle training, and carpooling.This thesis assesses the traffic problem around Ludvigsberg School in the district Valbo in Gävle, Sweden.

Gymnasieelevers inställning till lokal skolstyrelse med elevmajoritet : En enkätstudie

The aim for this essay is to investigate students attitudes to a local schoolboard with student majority to determin the level of functionality, relevancy and interest for this schoolboard among the students in a Swedish gymnasium in Örebro. This is done by distibution of a questionnaire form to a third of the students in the third grade . The results show that the attitudes overall amongst the students are positive, although the level of interest is low. One explanation for this low level of interest could be the lack of information from the school board to the students..

1553-Simulator. In-/uppspelning av databusstrafik med hjälp av FPGA

At Saab Aerospace in Linköping, components for measurement systems to the fighter aircraft JAS 39 Gripen are developed. In this activity you sometimes want to record the traffic transmitted on the data busses that connects different sys-tems. This traffic on the data busses is using the military standard MIL-STD-1553. This project has aimed to create a system for recording and sending 1553-data. The system is used on an ordinary personal computer, equipped with a recon- figurable I/O card that among others has a programmable logic circuit (FPGA).

Avvikelser i energiprestanda

Calculated and measured energy in residential buildings is going to differ. The reason to this may be due to many factors. In this study there is a study on how these factors affect the energy use in a building. To get an insight in what defines energy, there is first a description of energy supply both worldwide and used in Sweden, followed by a description of the energy balance. In this study energy will be studied in residential buildings only.

Design av ett grafiskt användargränssnitt - Ett befintligt system i förändring för användarnas bästa

Detta kandidatarbetet är utfört på ett bolag som verkar i telekommunikationsbranschen. Operatörerna på kundtjänst arbetar med att ta emot samtal från Telekombolagets kunder, hjälpa dem med att lösa problem och ge tips och råd. En viktig del av arbetet är att operatörerna gör en analys av kunden för att kunna ge bästa möjliga råd. Rapporten behandlar hur en del av ett textbaserat program kan omarbetas till en grafisk applikation. Etnografiska metoder, i form av observationsstudier och intervjuer, och designtekniker, i form av mockup- och prototypmöten, har använts tillsammans med användarna av programmet.

Externa styrelseledamöter : En studie över varför små familjeföretag väljer att tillsätta externa styrelseledamöter

Bakgrund: Behovet av bolagsstyrning är stort för mindre familjeföretag, då det kan hjälpa dem att hantera deras komplexa omvärld. Framförallt är det styrelsen som har en viktig roll när det gäller bolagsstyrning i familjeföretag. Ett aktivt styrelsearbete är viktigt för att de ska kunna stå sig i den ökande globala konkurrensen. En extern styrelseledamot kan bidra till ett aktivt och effektivt styrelsearbete och därmed ge företaget konkurrensfördelar. Det finns dock vissa problem förknippade med tillsättandet av externa styrelseledamöter som kan påverka valet att ta in utomstående i styrelsen.

Att bygga legitimitet i en värld av förändring : En studie av hur företag kan hantera en ny standard för intäktsredovisning

Intäkter är ett stort och viktigt område inom redovisning. Redovisningen av intäkter är imånga fall problematisk eftersom intäkterna behandlas annorlunda i olika standarder och iolika delar av världen. International Accounting Standards Board (IASB) och FinancialAccounting Standards Board (FASB) arbetar sedan 2002 med ett harmoniseringsprojekt somsyftar till att ta fram en heltäckande standard för intäkter som ska kunna applicerasinternationellt. Utkast till den nya standarden har presenterats av IASB, vilket har fått mångareaktioner från olika företag i olika branscher. Den del av standarden som fått mest kritik frånföretagen är den ökade mängden tilläggsupplysningar som kommer krävas i företagensfinansiella rapporter.

Torkventilation vid kartongtillverkning : En fallstudie på Fiskeby Board AB

Pappers- och massaindustrin stod år 2010 för 52 procent av den svenska industrins energianvändning, vilket motsvarade 76 TWh. Detta gör branschen intressant ur ett energieffektiviseringsperspektiv då små åtgärder kan leda till stora besparingar.Fiskeby Board AB är ett företag som tillverkar kartong baserad på returfiber. Då torkning- samt bestrykningsprocessen står för 2/3 av företagets energibehov föreligger intresse att använda energin på ett bättre sätt för att minska energibehovet och därav minska sina kostnader. Syftet med denna rapport var således att genomföra en energikartläggning av tork- samt bestrykningspartiet och utifrån resultaten presentera åtgärder för att minska energibehovet. Arbetet utfördes genom mätningar av lufttemperaturer och flöden, beräkningar, litteraturstudier samt intervjuer.

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