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3544 Uppsatser om Natural production - Sida 53 av 237

Industriella metoder för platsgjutna vindkraftverksfundament

Bakgrunden till denna rapport är det stora antal vindkraftverk som det idag finns planer på att bygga i Sverige. I Jokkmokksliden utanför Malå i Västerbotten påbörjades byggnationen av en vindkraftverkspark under 2010 vilken kommer att bestå av 18 vindkraftverk ritade av en tysk konstruktör. Fundamenten för vindkraftverken är massiva gravitationsfundament där armeringen är särskilt komplicerad att montera och kräver en stor arbetsinsatts. Syftet med denna rapport är att undersöka om och hur man genom att tillämpa nya metoder och planeringsverktyg kan öka produktiviteten och därmed minska arbetsinsatsen. För att uppnå detta har en djupstudie inom Lean Production utförts.

?Ska han bli dagisfröken?!? : En kvalitativ studie om varför män väljer att studera till förskollärare och vad de får för reaktioner och bemötande från omgivningen

The purpose of this study was to use qualitative interviews with students at Södertörn University to find out what drives the men who begin to study for preschool teachers, how they are treated and how they are influenced by others. I also wanted to find out what the informants believe is the cause to why so few men apply to the program and what they think need to happen to change this.This is a qualitative study based on the selected students' experiences. In order to get different perspectives, I chose to interview three students and former students. One of them chose to terminate their studies after half the time, the second is at the end of the program and the third graduated a couple of years ago and has been working for a while.I originated in the theory of ethical concepts of gender, gender contract, "token" and hegemonic masculinity. Previous research addresses that the perception of men in pre-schools can look very different.

Förändring i färdigvarulager och utlastningen av foder efter införande av en ny produktmix : En fallstudie på Lantmännen Agroetanol

This Master thesis was written for Lantmännen Agroetanol in Norrköping concerning the layout of their finished goods inventory and unloading of feed after introducing a new product mix. Lantmännen Agroetanol has two production lines which produces feed. Both lines lead to six silos, used as inventory of finished goods. The feed from the two production lines differ in terms of quality, where as Lantmännen Agroetanol wants to separate their finished inventory in order to charge a higher price, by selling the better product as a premium. With two different feed products the yearly revenue is expected to increase which motivates a research about the current capabilities and necessary changes to be made in the factory.

Materialhantering i en produkt- och volymmässigt varierad verksamhet: En fallstudie vid GE Healthcare Umeå

I den konkurrensutsatta tillverkningsindustrin är det viktigt att ha effektiva processer för att kunna hålla nere kostnader och samtidigt hålla en hög kvalitet för att kunna erbjuda attraktiva produkter till konkurrenskraftiga priser. Lean Production är en produktionsfilosofi vars fokus är att eliminera alla former av slöseri som inte skapar värde för kunden. Ursprunget till Lean Production kan härledas till fordonsindustrin och det japanska Toyota Production System. Systemets tanke byggde på en effektiv produktion för att kunna möta konkurrensen från större amerikanska konkurrenter som kunde dra nytta av storskalsfördelar i sin massproduktion. Ett av inslagen i Toyota Production Systems var att lagra material i nära anslutning till produktionen i så kallade supermarkets.

Anaerob rening vid StoraEnso Skoghalls Bruk

An analysis of a specific application of anaerobic wastewater treatment at a pulp and board mill, Stora Enso Skoghall, was carried out. A literature study was done and effluent wastewater from CTMP pulp production was analyzed. The analysis consisted of a broad constituent analysis and an anaerobic treatment trial. Results from these test where used to calculate the treatment effectiveness and resulting energy potential at the mill.The literature study and constituent analysis showed that toxicity of the water to be treated, due to wood extractives and sulphur content, was of concern. Detoxification chemicals targeting these constituents where used in the anaerobic treatment trial.

Investeringar i klädproducerande fabriker i Södra Indien

Given that the end-customer has become more demanding, the retailer has to deliver products according to the market demands, which have forced manufacturing companies to constantly search for new opportunities to reduce costs and improve efficiency. It is, therefore important to choose suppliers that are able to compete with the market demands.The market demands in the textile industry have lead to shorter product life cycles, which have caused manufacturers to deliver flexibility with high technology to compete successfully on the global market. To achieve the market requirements the underlying factor is to be aware and optimally use and control time. New technology can have a major influence in the production development, if the company choose to take benefit of the advantages, by optimal allocation of the internal resources the productivity and efficiency will increase, to accomplish a competitive advantage. One way to achieve this is by investing in a Unit Production System.In our thesis we have questioned what the main driving forces for an apparel manufacturing company is when it chooses to invest in new technology.

Utveckling och visualiseringav arbetet med ständiga förbättringar : För Pfizer, Strängnäs

Today it becomes more and more important to work with continuous improvements to stay ahead of the competitors. Pfizer in Strängsäs started working with continuous improvements in 2010. By the end of 2012, the company?s goal is to reach 24 improvements per employee at the factory.Their project has two main purposes; to examine the need and possibilities for visualization regarding continuous improvements at the production department and to develop a concept for visualisation of the entire factory?s continuous improvements.To attain the information required to examine the needs at the production department, interviews with relevant employees at the department were conducted. Using interviews as a benchmarking instrument was also helpful in getting different points of views.

Introduction of heifers to an automatic milking system

Automatic milking systems (AMS) are part of a growing trend in Sweden and the number of milk-producing farms is decreasing rapidly. One main reason for the AMS is its ability to facilitate work for the farmer. The effects of introduction prior to calving have not been documented earlier and farmers are not in agreement, however they seldom see a problem with the introduction. The aim of this report is to find differences between two groups of heifers, where one group is trained i.e. introduced to the AMS before calving and the other group is introduced after calving.

Identifiering av avgo?rande faktorer fo?r optimal intern bygglogistik : En fallstudie av tre byggarbetsplatser

Unlike the manufacturing industry, the construction industry is always in motion. Each new construction project brings new opportunities, and it requires a new plan, new organisation, and new suppliers. All construction projects are very different from each other and in terms of a logistical perspective, this is very weak as it makes it difficult to get a flow in the production and to make flawless routines. The way the external and internal logistics are managed, can effect the final product in the time taken to produce it, the quality of the product and the profit made from it. When internal logistics are handled poorly, it could result in materials not being at the right place at the right time, or information not going through to the right person.

Reproduktion och reproduktionsproblem hos taxtikar

Artificial insemination (AI) has had a great influence on the development of pig production and is today widely practiced (Gerrit et al., 2005). With AI, genetic progress can at a short period of time be spread worldwide compared with using natural service and the best boars can be intensively used. This is also one of the biggest risks with AI; the impact of semen containing a genetic disease or contamination of pathogens can be enormous. Fortunately, it is a small risk of disease transmission due to many tests of the boars and the semen before use (Maes et al, 2008). It is important that the boars used for insemination have good breeding values along with good reproduction features and have good fertility results (Robinson et al., 2005).

Robotfotboll

SUMMARYInventory of raw materials holds an important role in companies within the manufacturingsector. The inventory works as a buffer that secure the supply of materials to the productionunit. The aim of the inventory is to ensure that the company is able to meet the customers?demands despite fluctuations and variations in the material flow. The size of the warehouseand the layout are physical limitations for the quantity of articles that can be stored.

Fullfoder och blandfoder till mjölkkor : vad är viktigt för att lyckas enligt rådgivare och lantbrukare?

Total mixed rations (TMR) and TMR complemented with individual grain feeding to dairy cows are a growing practice in Sweden. This is because the heard sizes of the farms are increasing. Some farmers and farm advisors in Sweden have great knowledge and practical experience of working with TMR. In the same time there are many advisors that do not know how to handle TMR and farms that have a group based feeding of their animals. In this MSc thesis, the knowledge of farmers that use TMR and advisors with lots of experience of TMR are gathered, with the aim to create a guide book for advisors that are about to start or just have started working with TMR.

Biological control of powdery mildew in greenhouse produced cucumber : an evaluation of two microbiological control agents

Powdery mildew is a serious problem in both field and greenhouse cucumber production and can cause serious infection and radically reduced yields. Today, powdery mildew is the main disease in greenhouse produced cucumber. Disease control should preferably be both efficient and environmentally friendly, which is not easy to achieve at all times. Alternatives to chemical control of powdery mildews are biological control, physical control, non-fungicide control and cultivation of resistant or tolerant varieties. Biological control can be described as the suppression of damaging activities inflicted of a harmful organism by one or more other organisms, which are called antagonists or natural enemies. In Sweden, there are currently no registered biological control products available to control cucumber powdery mildew. The aim of this study was to investigate the effect of two biological control products in order to evaluate their ability to prevent or reduce powdery mildew infection to an acceptable level in greenhouse produced cucumber. In the experiments, different application regimes were also studied.

Drivarens produktivitet vid lossningsarbete :

During the last few years the harwarder has developed from a prototype into a market product. Holmen Skog owns two harwarders and uses two more owned by entrepreneurs. In previous studies it has been shown that the harwarder was a slow and expensive forwarder. In this study the unloading at road-site was studied. The goal was to describe the differences in time consumption between unloading two-sided or single-sided (only from side of the road) and also the difference between unloading with three and four assortments in the carrier.

Undersökning av fosfatsbegränsningseffekter på Escherichia coli AF1000 för bättre förståelse av 3-hydroxybutyratproduktion

High quality within a Lean production system begins with standardised work, which creates stable processes able to generate predictable output. If nonconformity from the standard procedures occurs, routines are needed to analyse, correct and prevent the nonconformity from occurring again. In that way, the nonconformity can be a trigger for continuous improvements toward more stable processes. In takted production lines, where the operator follows a standard sequence with tasks set to be completed within the takt time, a nonconformity leads to downtime in the operator?s sequence, and no value is added.

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