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462 Uppsatser om Feed wheel - Sida 13 av 31
Konsekvenser av ny teknik på en sjukhusmottagning
An often encountered problem when implementing a mass flow regulator in a rolling mill is the one with measurement of speed. The most widely used solution is to fit a pulse counter to a wheel that is in contact with the strip. Common problems with this design are for instance scratch marks on the strip and problems with the flatness measuring system. One way of circumventing the aforementioned problems would be a non-contact measuring system. The market of today only offers systems based on the Doppler principle.This report evaluates three different systems for non-contact speed measurement. Important areas in the evaluation have been the ability to operate under normal rolling conditions, integration in existing control system and how well the sensor can be fitted to the rolling mill.
Lagerprogram för Satellitlager
Texo Application has created robots that they call for satellites; with these you can feed in storage pallets into a satellite storage. Satellite storages consist of channels in height (e.g.3 to 8 pieces) and width (e.g.3 to 100 pieces). Channels can be different long (e.g. 5 to 200 pallets). At deposit of a storage pallet the truck insert the satellite in a channel and then the pallet, the pallet is driven into the channel until it reaches another pallet or the other end.
Kulturstrategisk inflytelse på COIN litteratur : Nagl, Kitson och Galula ur ett kulturstrategiskt perspektiv
In studying the art of Counterinsurgency Warfare we are usually inclined to the reading of several books regarding this matter. Because of this some writers have the power to influence the minds of the reader. This can be of great benefit since it enables information sharing and for the reader a chance to learn from the triumphs, but also mistakes of others. However each writer is the creation of the time and context under which he existed. Because of the wheel of time certain things change, and because of the context a myriad of factors came into play affecting the outcome and product of the doings and thoughts of that specific occurrence.
Modellering, identifiering och reglering av skannern i ett laserbatymetrisystem
The purpose with this masters thesis was to model the scanner in a system for laser bathymetry. The model was then used to develop a controller for the scanner so a good search pattern was achieved. Two different types of models have been tested, a physical model and a Black Box model of Box Jenkins type. The physical model has been derived from Lagranges equations. Identification experiments have been used to compute the Black Box model and to find the unknown parameters in the physical model.
Studier av koppar i mjölk : en prooxidant med negativa effekter på mjölkkvaliteten
The taste of the dairy product is probably the main factor determining consumer?s dairy products choice. Consequently it is of great importance that the product tastes good and as expected every time. Off-flavors in milk can be caused by for example oxidation of the milk fat. Since copper is a prooxidant, a high copper content in the milk can cause oxidation.
Vision Enhancement System : Vilken betydelse har displayplaceringen?
At night, the visibility is reduced and the demands on the driver increase. A safety system that enables the driver to discover warmer objects in the surroundings when the visibility are reduced, such as the Vision Enhancement System (VES) contributes to safer night-time driving. Since the benefits of this system are established, it is of interest to investigate different design aspects. The VES display has in earlier studies been positioned in front of the driver but different display positions such as peripheral placement should be evaluated. The present simulator study is an investigation of the effects of different display positions inside the car.
Projektering för återupptagandeav elproduktion vid småskaligtvattenkraftverk
Due to historically low prices for electricity in Sweden, many small-scale hydropowerplants were closed down. A small-scale power plant has more or less the samemaintenance costs as larger plants, but doesn?t generate as much income. Today?sincreasing price for electricity in combination with a desire for renewable energysources makes small-scale hydropower interesting again.
I vilken utsträckning kan hästar enbart utfodras med grovfoder?
Horses are grazers with a digestive system that is adapted for a high fiber diet. Forage is a fiber rich feed that includes grass and legumes. A deficiency of forage and an excess of grains may cause gut disturbances and stereotypic behavior. The aim of this literature study was to summarize information on the horse?s capacity to consume forage-only diets with focus on the horse?s need of energy and protein.
Utvärdering och implementering av automatiska farthållare i fordonssimulator
Vehicle simulators are becoming more common in vehicle industries. Company earns lot of money on simulations instead of real tests. Real tests are necessary but not made so extensively as before.In this thesis the building of an vehice simulator will be described and a comparison between three different cruise controls. The three cruise controls are PI-regulator, a regulator who regulates after positions in the terrain and a MPC-regulator. The reason for choosing this three is to see the difference between simple regulation and more complex regulation with respect to fuel consumption, travel time and complexity.The vehicle simulator is made in Matlab/Simulink, Visual Studio and Open Scene Graph.
Genomisk selektion inom köttraser
Genomic selection (GS) is used for selection of breeding animals of dairy cattle. GS is though not as extensively used within the beef industry. One reason for that is the low accuracy (rTI) of the breeding value that is of great importance for the final genetic gain. Causes to the low accuracy are high effective population size, a small reference population and a genetically differentiated population. There is however a market for genomic selection with High Density (HD) tests for beef cattle.
Utvärdering av mätplan, pinjong : För kortade bearbetningstider och ökade toleranser i monteringen
Getrag All Wheel Drive i Köping tillverkar i huvudsak transmissioner till fyrhjulsdrivna bilar.De har sett en besparingspotential om det är möjligt att sluta tillverka ett mätplan på pinjonghuvudets ovansida, detta används för att mäta in pinjongläget vid slutmonteringen av växlarna.I perioder har det uppstått kassationer på grund av slipbränningar på mätplanet men en stor del av besparingen ligger i kortade bearbetningstider. En önskan har även varit att det skall gå att få en ökad toleransvidd i monteringen för att minska antalet justeringar av monterade växlar.För att utreda om det skulle vara möjligt att ta bort mätplanet har ett antal koncept arbetats fram för att utvärderas gentemot de kriterier som måste uppfyllas.Konceptet med störst potential valdes ut med hjälp av olika jämförelsemetoder.Studien visar att det finns en möjlighet att bestämma pinjongläget genom att mäta i dubbhålet.De ändringar som måste göras är:- Ny mätstation vid inmätning av pinjonglägesshims där tjockleken påpinjonghuvudet mäts.- Ny meshingstation där pinjongen orienteras med hjälp av ett lagrat kontrollvärdeistället för att lokalisera med hjälp av mätplanet.- Ny kontrollstation för inmätning av pinjonghöjd där det måste gå att lokaliseraväxelhuset för att kompensera för lutningen på grund av att det inte går attmäta rakt under röraxelns centrumlinje.Möjligheten att helt utesluta mätmetoden bör undersökas.
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.
Nybyggnad till fårproduktion :
In Sweden we need more lambs during March to June. I decided to calculate on a spring lamb
production, because to many of the Swedish lambs go to slaughter in the autumn. I counted on
1000 ewes which have 2000 lambs each year, 200 of these lambs stays on the farm and
replace old ewes. The buildings are 3600 square meters. I have counted on two different sorts
of buildings, the first one is a shed, the second one is three polytunnel sheephouses.
Spolmaskangrepp är ett ökande problem hos värphöns
This literature review summarizes available data on infection with the parasitic roundworm, Ascaridia galli, as a cause of disease in poultry, including the consequences of a conversion to alternative production systems. Ascaridia galli has a direct life cycle with resistant eggs that survive and are easily spread in the environment, especially in systems with bedding materials where the faecal contact is high. The infection is usually subclinical but depending on the infection dose, the symptoms range from weight loss and diarrhea to mortality. Factors such as the feed composition and genetic variation among different hybrids clearly affect the establishment rate of the infection. Ascaridia galli will probably become an increasing problem, with a shift from the traditional battery cages to alternative systems where the risk of re-infection is high.
Nursing technique and growth environment of Rabbit fish (Siganus guttatus) in the area of Tam Giang lagoon, Thua Thien Hue
SummaryIn the area to the east of Hue city, in Vietnam, lays Tam Giang lagoon, one of Asia's largest lagoons, with an area of 22,000 hectares. This lagoon is suitable for aquaculture. One reason for this is because the salinity differs from sweet to salty in different parts of the lagoon. The Vietnamese Government advocates an increase in environmentally-friendly aquaculture and the fish Siganus guttatus (Rabbit fish) is a candidate for this. This fish eats mainly algae and can be cultivated in a polyculture.