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4565 Uppsatser om Production technology - Sida 32 av 305

Styrkan i OEE som arbetsmetod

The E-department at GETRAG All Wheel Drive in Köping have problems with the efficiency on parts of their production equipment. The equipment with the most significant efficiency problems are four automated multifunctional production cells that produces housing for rear drive units. The major part of the problem is the large amount of small stops that causes the low efficiency.The department already worked with logging of interruptions and efficiency calculations before this project started. However this work was not done to the extent considered necessary for a systematic follow-up of the interruptions.The aim of this paper is to point out a more effective and systematic way to work with logging of interruptions and the follow-up. In addition the equipment were studied with a method for efficiency calculation that ? if used properly- is a more powerful and a visually better method than the one used by the company today.As the initial current state analysis of the equipment was made a lack of documented knowledge about the equipment was discovered.

The impacts on Indian farmers when converting to organic cotton production : an organisation theory perspective

Changes in the environment are affecting the world market, and pressures from several stakeholders? are forcing different enterprises to adjust to the current situation. Farmers? difficult working conditions and environmental impacts of the conventional cotton production in India have been highlighted. The small-scale production that is characterising India?s cotton farmers implies an insufficient competition power.

Varumärkets funktioner : Hur stark är varumärkesinnehavarens ensamrätt?

Along with the development of technology, the cross-border trade is increasing and therefore there is a need for greater consumer protection. A good consumer protection creates a feeling of safety for the consumer and that by itself may help to increase cross-border trade. This is one of the reasons for why the EU has established regulatory framework for electronic commerce, for example the Directive2000/31/EC. The direc-tive strives to create a similar law for electronic commerce within the European Union. This paper?s main purpose is to ensure that the directive is implemented properly in Swedish law, and if there are other possible ways to achieve the objective, other than the ones that the Swedish legislator has chosen.

Fertilization in Eucalyptus urophylla plantations in Guangxi, southern China

StoraEnso decided in year 2002 to build a pulp mill in the province of Guangxi, southernChina, and also establish eucalyptus plantations to provide it with raw material. By 2010StoraEnso controls about 90 000 of planned 120 000 ha, out of 75 000 ha is already plantedwith Eucalyptus.By using better genetic material, improve the tending, selecting the sites more careful and byusing a proper fertilization regime StoraEnso hopes to increase the mean annual incrementfrom today?s 25 m3/ha, on bark, to 35 m3/ha. This study is one part in this work to increase themean annual increment in the plantation.This master thesis is the forth in a series, that has followed up a fertilization trial that startedin spring 2006 when the trial was laid out and treatments decided. The aim with the trial is toexamine the production potential of Eucalyptus urophylla in Guangxi, southern China.

Samband mellan överlevnad, tillväxt och pälskvalitet hos lammen och fruktsamhet och modersegenskaper hos tackan

There are several factors influencing the profitability of production with sheep. Two of the most important factors are ewe fertility and lamb survival. Also growth capacity of the lambs is important. This paper aims to review correlations between the ewe?s fertility and maternal behavior and lamb survival.

Förståelsen för OK>1

In 2005, Outokumpu began to implement its system of continuous improvement, OK> 1, at Avesta Jernverk. OK> 1 has not generated sufficient results on plant KPI:s. The purpose of this study is to identify the understanding,  participation and commitment regarding to OK> 1, and to suggest some actions to make OK> 1 more successful with emphasis on these three aspects. The thesis shall also determine whether there are any differences in the attitude towards OK>1 between Blue Collars and White Collars.The study consisted of a survey, and interviews. The output from these methods were processed and analyzed and finally resulted in a SWOT ? analysis and suggested actions for improving the understanding, participation and commitment towards OK>1.

Kvalitetsbristkostnader: En kvalitetskostnadsuppföljning för produktion och eftermarknad. : En fallstudie vid Huddig AB

All companies wants? to be as profitable as possible. The company in question is one of the leaders in it´s field in Sweden. In order to increase profits as much as possible it is important to identify and eliminate eventual quality defect cost as far as possible.This study was performed in Huddig AB, and the purpose of this study is to try to develop a routine for monitoring the quality defect costs, and to improve communication and create feedback between production and aftermarket.In addition to an extensive literature review on quality defect costs most of the work have been conducted at the company. Own observations and interviews have been done with the staff to get a picture of the current situation and to try to come up with improvement proposals.During the study it was proved that much of the quality defect costs in essence, derived from the production, which is seen as positive because it is the easiest part of the company to improve.

Produktion av Pyrolysolja från kvistrejekt

Fast pyrolysis is a method for converting biomass into three energy rich products: char, gas and bio-oil, where the latter is most interesting.  Pyrolysis is an endothermic process where biomass is heated in an anaerobic environment and, with the right operating conditions, up to 80 %wt bio-oil can be extracted. Key parameters for fast pyrolysis are: stable reactor temperature (~500°C), short residue time for gas in the reactor (<2 s) and a very high heating rate for the biomass. Today there are several different process solutions for fast pyrolysis, where fluidized beds and rotating cones are most developed. Bio-oil has compared to fossil oil: lower heating value, low pH and also polymerizes with time. Because of this upgrading is desirable for increasing competitiveness.

Mätning av lean production : En fallstudie av kopplingen mellan balanced scorecard och lean production

Bakgrund: I takt med att konsumenters preferenser har förändrats, har företag fått överge massproduktion till förmån för produktionssystem som bättre avspeglar konsumenternas ökade krav på flexibilitet. Ett sätt för att överbrygga denna utmaning är att implementera lean production. Även om detta sätt att producera på har tydliga fördelar för dagens företag, verkar lean production även kunna medföra problem i avseende på att kombinera med den befintliga, i många fall, traditionella styrningen i företaget. En del av styrningen som verkar vara speciellt svår att kombinera med implementeringen av lean production rör mätningen av produktionen. Vid en närmare granskning visar det sig att det råder vissa motsättningar mellan traditionell mätning och lean production som kan påverka företagets beslutsfattande negativt.

String Theory : att spela jazz pa? harpa

This master thesis is about the production of the record ?Brutus? with the band ?Trilobit?. Trilobit consists of the three musicians, myself, Stina Hellberg Agback on pedal harp, Simon Sva?rd on guitar and Karl Jansson on drums.During the production, I have analyzed different aspects of my own musicality and also the role of the pedal harp in jazz. I have found techniques that have simplified chromatic movements on the pedal harp, and also techniques that has developed the rhythmical aspect of my improvisation.I have also looked into my process in improvising and composing and developed new aspects, many thanks to the close collaboration with Simon Sva?rd..

Maasai herding and milking strategies : a case study of goals and decision-making within the household

In Kenya the Maasai pastoralists have based their livelihoods on dairy production and the production goal is to maintain a sufficient milk supply throughout the year. The pastoral dairy production has two vital characteristics; breeding and milking. Traditionally, breeding is the men?s responsibility, while milking is the duty of women. Depending on this partition of chores between men and women, they also have different management routines, ambitions and strategies regarding the milk production.

Energisparläge i automationsindustrin : Potential för att minska tomgångsförluster med industriella styrsystem

Former studies have shown that a considerable part of industries? energy usage can stem from idle times in the production. This thesis, carried out at Siemens Industry sector, evaluates the potential for using the control system to automatically put machines into energy saving mode during idle times. The main part of the thesis consists of a case study performed on machine tools at a Scania production site in Södertälje. Through load measurements the potential for energy savings was determined.The results show that there is a great potential for energy savings during idle times at the site.

High Cereal Prices : An analysis of the causes behind the increase in the world market price of corn, rice and wheat.

The purpose of this study is to examine which factors played an important role in the food price crisis of 2007-2008. Theories used are Microeconomic theory, explaining changes in supply and demand, and Macroeconomic theory, explaining the impact of changes in exchange rate on prices. A theory regarding speculation is also used to explain the impact of speculative activities effects on price. The method used is multiple regression analysis in order to determine the effects which ethanol production, oil price and dollar exchange rate had on the surge in the price of corn, rice and wheat.The data used is in monthly observations during the period 2005-2008. However, other factors are taken into consideration during the study, such as production quantity, stock size, economic growth, speculative activity and population growth.

Effektivisering av produkionsflödet för stora cylinderrör på Företaget AB

 This study was conducted in autumn 2008 on the Company AB, which is currently in a growth phase. The company manufactures hydraulic systems for the heavy vehicle industry and has annual sales of approximately 250 MSEK with 165 employees.The rapid growth and unchanged planning is the starting point for this report. It all began in 2005 when the company received an unusually large order. During this period, the first priority was to satisfy customers and all other focus was disregarded. This has primarily resulted in a messy production and long throughput times.

Examining Accuracy : Drönare och drönarangrepp: retorik, praktik och historia

The military conflicts of the early 21st century have seen the introduction and rise of a new military technology: the armed drone. With the United States acting as the driving force behind this technological advancement, the U.S Air Force and intelligence agency CIA have madedrones their weapon of choice for pursuing suspected terrorists and insurgents in various remotelocations. American military leaders and policy makers assert that the armed drone?s high levelof accuracy make it the best available weapons platform for this task. However, new researchshows that the use of drones may result in more civilian casualties than previously thought, andmay in fact be more fallible than conventional aircraft in this respect.

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