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8497 Uppsatser om Manufacturing Process - Sida 13 av 567
Optical and Structural Properties of CuxS Quantum Dots Concerning H2O/Ethanol Solvent Ratio
Nanotechnology, one of the most interesting sciences today will no doubt have an enourmous impact on tomorrow's society and industry. One of the most interesting nanomaterial that has been discovered is the semiconductor quantum dot (QD). This material shows interesting novel properties such as a size-dependent band gap, which is an effect caused by the quantum confinement effect in all three dimensions. Due to this phenomenon the absorption spectrum can be tuned to the desired value by adjusting the size of the QD.This thesis aims to investigate how the solvent ratio of H2O/Ethanol affects the optical and structural properties of copper sulfide QDs manufactured in a chemical synthesis way using modern microwave heating. The process of manufacturing QDs using chemical synthesis often involve a capping-agent to prevent the QDs from agglomerate into bigger structures.
Från idé till förändring: process- och produktinnovation inom processindustrin
Åren mellan 1950-1965 ses som första generationens innovationsprocess genom
att allt fler företag ökade sin användning av innovationsprocesser i samband
med den teknologiska utvecklingen i företagen som kännetecknas av den här
perioden. Innovation innebär i korthet att något nytt åstadkoms eller att
något redan existerande förnyas. Innovationer är ett måste att använda sig
av för att företaget ska ha en chans att hålla sig kvar på markanden trots
att konkurrensen bara blir starkare och starkare. Det finns flera typer av
innovationer, två exempel är produktinnovation och processinnovation. Dessa
två innovationstyper är ofta väldigt nära kopplat till varandra och svåra
att skilja på.
Från idé till förändring: process- och produktinnovation inom processindustrin
Åren mellan 1950-1965 ses som första generationens innovationsprocess genom att allt fler företag ökade sin användning av innovationsprocesser i samband med den teknologiska utvecklingen i företagen som kännetecknas av den här perioden. Innovation innebär i korthet att något nytt åstadkoms eller att något redan existerande förnyas. Innovationer är ett måste att använda sig av för att företaget ska ha en chans att hålla sig kvar på markanden trots att konkurrensen bara blir starkare och starkare. Det finns flera typer av innovationer, två exempel är produktinnovation och processinnovation. Dessa två innovationstyper är ofta väldigt nära kopplat till varandra och svåra att skilja på.
Underhållsstrategi enligt Professional Maintenance metodiken som en del av World Class Manufacturing
As a result of global competition, companies within the automotive industry are required to improve their production systems to achieve sustainable and competitive production. To attain operational excellence, companies have adopted concepts like lean and World Class Manufacturing (WCM).In order to deliver, companies need to increase the availability and reliability of production equipment. This demands focus on both operational and strategic maintenance, and efficient equipment acquisition and management. The main objective of this thesis is to identify processes and success factors that are necessary for improved maintenance performance. By conducting a case study and by performing a literature review, the following has been studied: 1) how companies within the automotive industry work with maintenance and maintenance strategies, 2) implementation of maintenance strategies, and 3) new acquisition and spare parts management for maintenance. The results show that basic maintenance concepts and related terms are well defined in the literature.
Hållbarhetslivscykelanalys på kakel och klinker : Analys av vägen från vagga till grav ur ett hållbarhetsperspektiv
In this report two Sustainability Life Cycle Assessments are carried out for two types of tiles for Riksbyggen, to contribute to a sustainable urban transition. Sustainability Life Cycle Assessment involves performing a life cycle assessment based on four principles based on scientific research and presented by the non- governmental, non-profit organization, The Natural Step. The principles concern raw materials, chemically produced substances, degeneration of nature and social conditions.Origin of products, manufacturing sites and manufacturing procedures were initially completely unknown and much of the work has consisted of finding the entire cycles, understand Manufacturing Processes of ceramic tiles and evaluating what materials and what type of energy sources that are required for the production. A socially sustainable perspective has been of high relevance alongside an ecologically sustainable perspective.The report begins with the basic underlying facts and the purposes of this investigation and that the reasons why Sustainability Life Cycle Assessments are carried out are to provide Riksbyggen and the own workers with documents presenting Riksbyggens ideas regarding sustainability and to hopefully get the ideas further down in the supply chain. The methods used to fulfill the investigation are presented and scientific facts about LCA and ceramic building materials are reviewed.
Förbättrad resistansmätning för grova aluminiumledare
The goal with this master thesis has been to evaluate and to examine the stationary resistance bridge. The resistance bridge uses a 4-point measuring to determinate the resistance, which is used in the manufacturing of the conductor. It is then used when the resistance is to be decided for coarser aluminium conductors. A conductor has to fulfil certain demands to be able to move forward in the process. One of these demands is the resistance in ohm/km, which has demands that the measure values of the resistance bridge are as true and precise as possible.
Designprojektet BEDÅRANDE BARN AV SIN TID - Ett innovationsprojekt om material, traditioner och en arbetsmöbel
ADORABLE CHILD OF ITS TIMEThis text will describe a inovative project about material, traditions and someideas about furniture for work in an home inviroment. The content is partlyabout exploring ancient marine- and textile techniques to find somethinguseful for furniture of the twenty first century. It is also about the designprocess of creating a sustainable piece of furniture that questions the paradigmathicsabout usage and the context about manufacturing furniture.The text will briefly describe the design process and then reason about theresult in a deeper sense. Questions that has been considered from the verybeginning of the project as well as those one stumbled across during theevolution of the work will be objectives for the discussion. The result will bein focus as a foundation for the discussion and also the values and issuesabout that.
Förbättrad resistansmätning för grova aluminiumledare
The goal with this master thesis has been to evaluate and to examine the
stationary resistance bridge. The resistance bridge uses a 4-point measuring to
determinate the resistance, which is used in the manufacturing of the
conductor. It is then used when the resistance is to be decided for coarser
aluminium conductors. A conductor has to fulfil certain demands to be able to
move forward in the process. One of these demands is the resistance in ohm/km,
which has demands that the measure values of the resistance bridge are as true
and precise as possible.
The stationary resistance bridge had been examined through various kinds of
measurements to be able to see how stable the system is and how to obtain a
measure value as optimized as possible.
Man packar ihop sin väska och där står hon och har lämnat ut hela sitt liv : En studie av professionella aktörers syn på våldsutsatta kvinnors upplevelser av rättsprocessen och deras möjligheter till samhälleligt stöd
The study aims to illustrate how women victims of male violence in intimate relationships are treated during the legal process and with professional perspective describe what women?s experiences considered to be in the legal process. The study also aims to draw attention to the interventions for abused women during the legal process.The results are based on interviews with professionals in the justice system, and on observations in the courtroom. Overall our results show that abused women are in need of a great quantity of help and support before, during and after the negotiation. The legal process is very stressful for the women.
Uvärdering och förbättring av kvalitetssystem: en fallstudie vid Pfizer Global Manufacturing, Helsingborg
Examensarbetet berör utvärdering och förbättring av kvalitetssystem vid Pfizer i Helsingborg. Data har samlats in, analyserats och därefter har förbättringsförslag tagits fram. Huvuddelen av datainsamlingen består av intervjuer som sedan analyserats med hjälp av teori inom TQM och gällande ISO standard. Övriga delar av datainsamlingen består bland annat av benchmarking. Svagheter med systemet har identifierat och rör bland annat, avsaknad av helhetsbild, kontrollinriktat samt suboptimeringar.
Risken för diskriminering pga. etnicitet i samband med rekrytering
The purpose of this study is to investigate ethnic discrimination in the recruitment process. National and international law protect individuals from ethnic discrimination by potential employers during the recruitment process.Despite the laws in place to protect human rights, minorities in society do not have the same opportunities in the labor market as the rest of the population. Minorities continue to have difficulties compared to Swedish nationals in the recruiting process. Highly educated immigrants seeking employment in Sweden continue to report being treated unfairly based on their ethnic background.Ethnic discrimination in the recruiting process is based on prejudice and stereotypes that affect decisions whether it is visible or hidden, intentional or unintentional.Under the law, it is not legal to base a decision on prejudices or stereotypes. Therefore, it is important for the employer to highlight the job requirements to ensure the recruitment process is ethical.
Utökad samverkan med leverantörer : - Partnering, en lönsam möjlighet i byggindustrin?
The construction industry has been heavily criticized in the past few years for its development of productivity compared to the manufacturing industry. In 2009 the Social Care Center developed a report that treated och criticized different errors within the construction industry. For instance competence, construction errors and performance had showned bad results which had to be improved. A common sentence within the building industry is that ?every project is unique?. Today it?s common for a construction company to have costs for material and services which exceeds two-thirds of the total cost.
Honung och biodling : honungens ursprung, egenskaper och effekter på människans hälsa
This report describes honey, its origin, properties and effects on human health. Honey has been used for a long time in most civilizations and apiculture is an important activity sector in many parts of the world. The trend is an increase in honey production but a decrease in the number of beekeepers in Sweden. Honeybees live in a highly developed society with a strong hierarchy and a well organized distribution of the tasks. They visit a broad spectrum of plants and collect nectar to store it as honey.
Finansiering av småföretags internationalisering
AbstractAccording to several researchers finance is scarce, scarcer for small businesses than for big enterprises. Small and medium-sized enterprises, SMEs, that want to start exporting and sales or manufacturing abroad need capital to get ready. Which capital structure and financial costs do they have, and which forms of finance do they actually use for that purpose. New american research by Mansi, Reeb (2002) has suggested, that there is a positive connection between leverage and a negative one between financial costs and internationalization, and that a non-linear model better describes this connection.This study has gathered data in two ways: Through a questionnaire from 37 SMEs and balance sheet figures from totally 166 manufacturing SMEs. In order to examine, whether the company was active on the international market, 200 SMEs in south Sweden were asked, if they exported to, produced or sold on any other market than their home market.
Utveckling av 300 kg HD Lightlift för belysning och liknande laster
The company LightLift Esystems AB manufactures patented motorized lift systems for the illumination of halls with high ceilings. The company wants a new design for singular heavy lights in order to be more competitive.This project consists of the development of the new design under the requirements and specifications imposed by the company. The new design must support lights up to 300kg and keep the overall dimensions as low as possible without modifying the driving unit.This document contains all the designing steps followed to reach the final solution as well as the material selection, Manufacturing Process and assembly of all the parts that form it.The solution obtained shows to be very competitive with other alternative products, since this new design triples their maximum load capacity while the dimensions are very similar.In this context, the optical appearance was also very important to the company and so it was another main objective of this project. From an aesthetical point of view, the final solution proves to be very compact and versatile since it can either be hidden behind a false ceiling or covered by a plastic case that gives the design a very nice look.Finally, the solution achieved fulfils all the requirements and specification previously imposed. It is reliable, compact, cheap to manufacture, easy to assembly and it has a good optical appearance. .