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962 Uppsatser om Agriculture equipment - Sida 48 av 65

Utvärdering av metoder och modeller för att simulera växlingskomfort i entreprenadfordon

Good comfort for the driver of a construction machine is crucial. Gearshift comfort is an important part of the total comfort. Volvo Construction Equipment Components has a simulation environment of the powertrain, SimPow, which is implemented in Matlab/Simulink. SimPow is mostly used for simulation of control strategies and performance. In order to be able to study gearshifting comfort, Volvo has an interest in developing new models for SimPow.

Syntes och egenskapskarakterisering av volframoxid framställd med magnetronsputtring

The system tungsten-oxygen has potential of being suitable for decorative coatings since ceramic coatings are often hard and wear resistant, and since modulations in oxygen content or incorporation of small ions could give bright colours. The aim of this report was to investigate the relationship between process parameters and  the properties of the films, with the wear resistance being of special interest.Samples with tungsten to oxygen ratios in the range of 100:0 to 25:75 at% were made using reactive sputter deposition, either with constant gas flow, or gas flow controlled by optical emission of the plasma. The hysteresis of the system, which means that a certain gas flow will cause different pressure and/or target voltage depending on in what way the flow is reached, makes it interesting to control the process where the system makes the steep change from metallic tungsten to ceramic tungsten oxide. This is difficult and thus requires precise control equipment.The samples were analysed using X-ray diffraction, X-ray photoelectron spectroscopy and an empirical wear test suitable for small components like cell phone cover for example, in order to characterize the structure, composition and wear resistance of the coatings. The results could be divided into three groups: (I) tungsten-like, with very low oxygen content; (II) mixed phase and (III) tungsten oxide like, with oxygen content close to 75 at%.

Flexible Snowboard System

The project, Flexible Snowboard System, has been carried out by the project group independently and is a module developed for snowboarders, ski rentals and ski schools. The problems of today?s solutions are that they cause the user an inconvenient standing position when riding the ski lift or skating the transportation slope, also mounting, adjustments and disassembling of the bindings are time consuming and brings undesired wear to the screws and screw holes. In addition any adjustments require that the user steps out of the bindings and have tools at hand. Flexible Snowboard System is a universal module which means that it can be assembled with all of today?s snowboards and bindings.

Matförgiftad? Kanske ett införande av Smiley system i Sverige skulle kunna hjälpa dig?

Most of us sometimes in life visit a restaurant to relax and eat some good food. In that case, we trust that the food they are serving is of good quality and safe which prevent food poisoning. As a consumer you mostly do not have any insight what?s happening in the kitchen at the restaurant. What is really going on when they prepare the food? An introduction of the Smiley system could help you as a consumer in the choice of restaurant.

Mjölksyrabakterier som tillsatser vid ensilering av majs :

The project was initiated by Medipharm which produce microbial inoculants which used as additives to preserve forage. The main goal was to test three inoculants to produce maize silege. The following Medipharm produced inoculants were tested, Milab 393, Lactisil Wolecrop II, Lactisil 300 2. An untreated control was included in the study. The trial was done at Swedish university of Agriculture and Science in Alnarp, Sweden. Eurostar was the cultivar of the maize and was grown on 20, 5 hectares.

Analys av nötningsfenomen i pappersbaserat friktionsmaterial för våta kopplingar

Våta kopplingar används i automatiska transmissioner för att överföra vridmoment. De primära komponenterna i en våt koppling är de oljesmorda pappersbaserade friktionslamellerna och separationslamellerna gjorda av stål. Volvo Construction Equipment (Volvo CE) utvecklar och bygger automatiska powershifttransmissioner med våta kopplingar till sina anläggningsmaskiner. Volvo CE och Luleå Tekniska Universitet (LTU) bedriver tillsammans forskning om våta kopplingar som involverar pappersbaserade friktionsmaterial. De två vanligast förekommande materialen i produktion, i detta examensarbete benämnda som material A och B, testades i en testrigg på LTU.

Mycket behöver förändras! Barnmorskors uppfattning om postpartumvård när barnet behöver neonatalvård

Aim: To examine how midwives describe good and safe postpartum care of mothers with infants in neonatal care, and which prerequisites and obstacles they see to giving good and safe care while minimizing time of separation. Method: Semi structured qualitative interviews with ten midwives at two maternity wards in Uppsala. The interviews were recorded, transcribed verbatim and processed by manifest analysis. Results: Three categories were identified, Good and safe care, Organization as an obstacle and The midwife role. Good and safe postpartum care of mothers with infants in neonatal care required knowledge, appropriate equipment, good guidelines, possibility to see the mother, contact between mother and infant and good collaboration between the maternity and neonatal wards.

Utrustning för automatmontering av ackumulator

This report deals with an exam report written by Olle Hjalmarsson and Thomas Likar, students at Högskolan i Halmstad. The project was carried out for Haldex Traction AB in Landskrona whose business consist of manufacturing automatic all wheel drive systems (AWD-system). These systems consist of a plate clutch which activates all four wheels of a 4-wheel driven vehicle. An important component in these clutches is the accumulator which basically consists of a piston under the load of a spring which creates an oil pressure with the help of an electric motor used for actuating the clutch.At Haldex difficulties has been experienced regarding the assembly of the accumulator parts due to the small tolerances between the piston and the hole of the accumulator in the cast aluminium housing. Attempts have been made to assemble the parts in existing robot cells.

Viktiga faktorer vid lantbrukares val av bank

The bank market for farmers in Sweden is dominated by Swedbank and Landshypotek. One of the most aggressive challengers is Länsförsäkringar Bank, which in 2009 had seven per cent of the Swedish bank market for farmers, but 57 per cent of all new lending. This paper deals with the problem of new banks to break into the bank market where farmers are slow in terms of change in their attitudes and loyal to their banks. The study has been carried out in cooperation with Länsförsäkringar Gävleborg which is a new actor in the banking market and thus eager to take part in the outcome of the study. This essay thus seeks to examine the attitudes farmers have against bank switching and the factors that influence their choice of bank.

Larmpaneler på fartygsbryggor : En studie av larmpanelers användarvänlighet och problematik

Denna studie ska påvisa den problematik som ett fartygsbefäl kan känna och uppleva när ett larm signalerar på en fartygsbrygga. Syftet är att beskriva problemen samt ta vara på befälens egna erfarenheter utav larmpaneler ombord på fartygens bryggor, samt vad man skulle kunna göra för att minimera problemen. Vi har valt i denna studie att göra en kvalitativ undersökning med hjälp av enkäter samt intervjuer. På detta sätt kan vi fånga upp fartygsbefälens egna erfarenheter och de känslor som de beskriver. Resultatet har visat sig att det finns problem med lokaliseringen av larm för de oerfarna samt att de dessutom kan tappa sin uppmärksamhet med navigationen av det egna fartyget.

Bekämpning av vita flygare (Aleurotrachelus socialis) i kassava (Manihot esculenta) : fysikaliskt verkande insektsmedel : mortalitet och appliceringsteknik

The study was performed in southwest of Colombia in close collaboration with the interna-tional centre of tropical agriculture, CIAT and supervised from the university of Valle, Uni-valle, Cali, Colombia and from the Department of Landscape Management and Horticultural Technology, SLU, Alnarp, Sweden. The main purpose of this thesis was to evaluate six different non-conventional insecticides and their ability to control whitefly Aleurotrachelus socialis in cassava Manihot esculenta. The aim was also to evaluate the most appropriate application technique for these products which were: Agronim, Biomel, Bioneem, EcoSwing, Coco soap + chilli and L´Ecomix. The products are mainly based on vegetable oil, soap and plant extract and cause primarily a physical contact effect which affirm that it is fundamental to obtain a high coverage of the underside of the leaves, where A. socialis is present.

Övergödningen av sjön Anten - en underlagsrapport för Alingsås kommun

I och med den tillväxtprognos som Göteborgs Stad har så kommer även godstransporterna attöka. Syftet med studien är därför att identifiera slöserier i kommersiell godstrafik med hjälp avLean Productions 7 + 1 slöserier. Slöserierna skall sedan anpassas för att kunna framställas i enLeanbaserad slöserimodell för den kommersiella godstrafiken. Dessa kommer sedan teoretisktatt effektiviseras eller elimineras. Tillvägagångssättet har bestått av kvalitativa observationer,intervjuer samt teoriinsamling.Lean Production är ett produktionssystem och synsätt framtaget av Japanska företaget Toyota.Dess två huvudprinciper är att företagen alltid ska respektera människor och sina medarbetaresamt ständigt jobba med förbättringar för att bli så effektiva och produktiva som möjligt.Förbättringarna sker i form av att identifiera Leans 7+1 slöserier för att därefter reducera ellereliminera dem.Studiens resultat är häpnadsväckande hur ineffektiva vissa transporter är.

Kalkningens påverkan på fosforlöslighet : skakförsök baserade på två svenska långliggande kalk- och fosforgödslingsförsök

Eutrophication is an environmental problem that affects more than ten percent of Swedish lakes. Excess nutrients increase the growth of algae, and cause major problems in the ecosystem through oxygen-free bottoms, fish kills, and at worst dead bottoms. Agriculture accounts for 44% of human emissions of phosphorus to lakes and rivers. Leaching occurs of particle bound phosphorus and of dissolved phosphate. The amount of phosphate in the soil solution that may be leached is partly due to the prevailing pH in the soil solution. The purpose of this study was to investigate how the relationship between phosphate solubility and pH was affected by liming.

UTVECKLING AV GUNGBRÄDA : ANPASSAD FÖR BARN MED FUNKTIONSHINDER

This thesis was rendered for the client HAGS Aneby AB that is a global leader in playground equipment. The goal of this project was to develop a seesaw that is available for children aged 5-12 years; both with and without disabilities. The project has aimed to develop a seesaw that fits everyone in the target group without looking specially adapted.Children with disabilities have difficulty using today's seesaws because they consist of only a seat and a handle on each side. It requires that the user has strong arms and legs and can sit up without support. HAGS Aneby AB would like to change this.To gain knowledge of the target group and on the different types of disabilities information was sought for on the internet including the RBU's and UNICEF's websites.

Klimatförändringarnas påverkan på träd i offentlig miljö i Uppsala till år 2100 : tillämpat på tio av de idag vanligaste träden i nyplanteringar

Det går inte att förutsäga exakt hur klimatet förändras, klimatexperter har däremot tagit fram sannolika scenarier. Klimatet påverkar träd i städer och har därför en ekonomisk, ekologisk och upplevelsemässig tyngd. Uppsatsens utreder hur tio av de vanligaste träden i nyplanteringar i offentlig miljö i Uppsalaområdet påverkas av förväntat klimat år 2100. Klimatförändringar i Uppsalaområdet utreddes genom litteraturstudie. För att definiera vilka träd som är bland de vanligaste intervjuades tio landskapsarkitekter och två andra växtexperter. För att bestämma hur träd troligen påverkas så granskades litteratur rörande växtfysiologi och träd.

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