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560 Uppsatser om Machine operators - Sida 28 av 38
Bilateral deficit vid excentrisk och koncentrisk muskelaktion : En jämförande studie mellan den summerade unilaterala och bilaterala kraftutvecklingen hos roddare visavi sprinters
AimThe main aim of the study was to investigate the difference in bilateral deficit between rowers and sprinters during maximal eccentric/concentric muscle actions.? Are there any significant differences in bilateral deficit between rowers and sprinters?? Do the amount of years in practice effect the bilateral deficit?MethodFourteen male subject participants divided in 2 equal sized groups (7 individuals in each group; rowers and sprinters) performed maximal unilateral/bilateral eccentric and concentric muscle actions in a leg press machine at a velocity of 0.2m/s. The range of motion in the knee joint was 70° ? 140°. Dependent t-tests have been performed within each group pre and post test.
Flerskiktat papper : en sammanställning av historia, teknik och forskningsresultat
Until the beginning of the 1900:th century the paper making process was handicraft. The paper machines that have been developed since then are as impressing in size as fascinating when it comes to the technique. The process has always been improved to give a better paper for lower costs, with as short manufacture time as possible. Stratified forming has been a reality since 1830. From the beginning it was applied to board and paperboard.
Mikrolitografi för rastrerade Gobos
Beacon AB has been producing Gobos for some time. A Gobo is a small round sheet used in projectors almost like a slide. It is used mostly in the commercial and entertainment business. Today these Gobos are created by using a film (also called mask). A digital exposure machine called LIOS has been developed to make it possible to create Gobos using direct exposure.
Machinima : Ett kulturellt fält i rörelse
I mitten av 1990-talet närmare bestämt 1996 gjordes en film kallad Diary of a Camper. Filmen handlade om en person som satt och lurpassade på sina fiender i ett datorspel. Det som var speciellt med denna film var inte handlingen eller något fantastiskt kameraarbete. Nej det som var speciellt var det faktum att filmen spelades in i ett datorspel. Denna film anses vara startskottet för machinimakulturen som idag omfattar flera tusen utövare världen över.Det var personerna bakom Diary of a camper som myntade uttrycket machinima som är en sammanslagning av de engelska orden ?machine? och ?animation? alltså maskin och animation.
Hållbarhetsstrategier: Är det ett hinder att vara mindre? ? En studie kring motiv bakom implementering av hållbarhetsstrategier i mindre svenska företag inom hudvårdsbranschen
Problem: Small companies dominate the skin care industry, and they also face moredifficulties, constraints and resistance in strategy implementation and sustainabilitywork than other operators. Still, the trend of sustainability strategies increasesignificantly precisely in this industry.Purpose: The purpose of the study is to contribute knowledge to the field ofsustainability strategies and motives for the implementation of them in smallercompanies who engage with skin care, in Sweden.Framing of a question: Why do some smaller Swedish companies in the skin careindustry choose to implement sustainability strategies in their business?Literature: The literature functions as a framework for the study and is considered toidentify the possible reasons why small companies choose to implement sustainabilitystrategies or not. The literature is collected before the empirical data.Method: This paper is constructed by a qualitative method approach. The empiricaldata were collected through interviews, by telephone, personal meetings and email,which were then transcribed and the interpreted by a model, which the authors havecreated.Conclusion: Smaller companies are often met by larger resistance and an until up tothe present slowly emerging industry with vague rules and controls as well as ancomparative knowledge of what is good and what is not.
Buntning av grot med lastbilsmonterad utrustning :
During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis, and the subsequent transport and crushing. The truck bundler created bundles that were larger and longer than other bundling equipment on the market. The objectives were to determine the total time consumption and its allocation over work element and machinery, to measure dry matter (DM) content of green and brown LR-bundles.
Verifiering inför AEO-certifiering vid Attends Healthcare AB
Since January 1st 2008, companies have the opportunity to become certified by the new common customs system Authorized Economic Operator (AEO). This opportunity is presented so that authorities together with operators are trusted to ensure that it is the correct cargo that gets transported. Attends Healthcare AB (Attends) has decided to implement this certification. To qualify there are a number of criteria that needs to be met. The aim of this thesis is to verify if Attends can meet the required criteria.
Reducering av ledtider samt framtagande av kalkylmodell
Rimaster Kisa AB is a member of the Rimaster Group, the corporation was bought from Samhall AB in January 2007. The corporation is producing mechanichs needed by the Rimaster group as well for external costumers. Samhall AB is now functioning as a provider of labor for Rimaster Kisa, as the company is hiring personnel from Samhall AB. The company has earlier have had problems with their lead times being far too long. This has resulted in that the management decided to invest in a new edging press.
Utveckling av nytt koncept för positioneringsslid
A manufacturing machine at the engineering company Sandvik Coromant has a positioning table which task is to move an item linearly. The positioning table has a linear motor capable of high velocity and acceleration. This makes it possible to achieve short cycle times and a more profitable production.The purpose of this thesis is to bring forward a new concept which is more adapted to the requirements of the positioning table. The reason is that the current positioning table provides an unnecessarily positioning accuracy of 0.01 mm, while the requirement for the positioning accuracy is just 0.1 mm. The goal is to reduce manufacturing and component costs.To develop a suitable solution an approach for the concept development process has been performed.
Milk yield and composition in Swedish landrace goats (Capra hircus) kept together with their kids in two different systems
Swedish goats are mainly held for cheese production and therefore, both milk quality and composition are of great importance for dairymen. Today, only few data exists on milk composition from Swedish dairy goats and the casein content is still unknown. One way to reduce the work load for goat farmers and increase animal welfare can be to keep goats and kids together for longer periods. The aims of this study were to investigate how milk yield and composition were affected when kids suckled their dams during 8 weeks, and to measure the casein content on farm level by a mid-infrared spectroscopy method, previously calibrated for goat milk. Lactating goats were kept in two different MIX- systems where the dams are both suckled and milked.
Livskunskap : ett ämne i tiden
The purpose of this Bachelors thesis is to investigate teachers' work and attitude to life in relation to the curriculum. Furthermore, how teachers look at students' emotional/social development in their general development. The thesis also reviews the criticism from The Swedish School of Authority on various programs primarily SET (social and emotional training)Three qualitative interviews and four observations at three different schools with teachers have been conducted. Using theories of social constructivism, deliberative conversation and social and emotional skills, the intention is to interpret the gathered material.The results show that the teachers see knowledge of life in school as important in the foundation of students´ emotional/social development. One teacher follows the SET program and two teachers? took inspiration from various other programs and ideas.
Vattenlogistik vid stubbehandling i slutavverkning
Water logistics has long been a problem in order to effectively carry out stump treatment in both thinning and final felling. It is important that the stump treatment?
equipment is configured as well as a sufficient amount of water is carried out on the harvester to get a cost? effective treatment. The flow control of the equipment has improved and water can be dispensed more efficient, but still the amount of water on the machine is a crucial factor in the total cost estimate.
The knowledge of the tools available to bring water as well as the internal logistics of loading and transport to the felling site is deficient. Increased focus on "smart" solutions to manage water cost is of great importance in order to combat Hetrobasidion spp in both thinning and final felling.
The purpose of the study is to describe and summarize different solutions of water logistics at stump treatment in final felling.
Prognostisering av utrustningar på Volvo Wheel Loaders
Volvo in Arvika produces wheel loaders, and the production is based on forecasts. When a machine is ordered, the customer can choose what type of equipment he or she wants, and these equipments are also made forecasts on. This is made by giving each equipment an estimated procentual usage that shows how many of the machines that will use this option. Today two people are working with the forecasts, planer A in Eskilstuna and planer B in Arvika. Planer A makes a forecast based on the historical outcome and planer B then makes adjustments of this based on how many options that are ordered.
Är reducerad jordbearbetning ett alternativ? :
Today cultivation of cereal in Sweden has high costs for establishment in relation to the rest of the world, and if this cultivation will be able to continue, the farmers have to control their costs. It is important to see all costs, not the maximum harvest achieved, but the net result. All farmers have different conditions with respect to soil, direction of the farm and were the farm is located geographically. With the right knowledge and ambitions, we think most farmers could change to reduced tillage.
In this paper we have tried to find out if reduced tillage is an alternative for farmers.
Fallstudie av kostnader i tornsilo och plansilosystem på en mjölkgård :
I have through a case study looked on a milkingfarm in Dalarna and been counting on
what it would cost to increase the silagestorage. Today they have to little capacity on the
existing towersilo because they built a bigger farm with more cows. The reason is that
two families decided to start having the production on one farm together and moved all
animals from one of the farms to the other farm. So for that reason I have looked on the
costs to build a new towersilo or levelsilo.
The goal has been not only to look at the buildingcost but also which operatingcost that
is included with the different alternatives. I have taken tenders from two different
towersilocompany, Bjurenwall and Svenska Neuero and taken tenders from Abetong for
a levelsilo with roof and one without roof.
The overall feed requirements on the farm is on 240 tonnes dry extract and the old
towersilo hold 110 tonnes dry extract so the need for a new foundation is on 130 tonnes
dry extract.
I have through cost estimate been counting on the specific buildingcost for each
buildingaltenative.