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404 Uppsatser om Metal cutting - Sida 19 av 27

Jätteträd ? inventering, bevaring, skötsel samt rekrytering :

During the summer of 2007 I was employed by Högestad Christinehofs Förvaltning AB. My main task was to make an inventory of giant trees at the estate. Högestad and Christinehof,which with their total possession of 13 000 ha of land is the biggest estate in Scania. A giant tree is a tree with a diameter in breast height more then 1 meter. Trees of these dimensions are registered by Swedish authorities. Landowners with a giant tree on their property can receive a subsidy for cutting trees that are in competition with the giant tree.(Levenskog, 2007) Giant trees are important for biodiversity in the landscape and there are important habitats for different insects, birds, bats, lichens and funguses.

Kan Lamotrigin utgöra ett Behandlingsalternativ vid Bipolär Sjukdom?

Bipolar disorder is a severe, affective illness which causes a person to alternate between episodes of pathologically elevated mood (mania) and depression ? in between these episodes the mood is normal. The length and intervals between the episodes are highly variable among the ill, as are the severity which is divided into two major subgroups: bipolar I and II. Bipolar I disorder is the most severe because of the patient?s inability to realize that he or she is currently in a manic phase, in the case of bipolar II disorder, the patient is aware that he or she has an abnormally raised mood, a state which is called hypomanic state instead of manic.

Mek Stans 07

Mek Stans 07 is a machine developed for Tetra Pak in Lund as a 10p candidate theses project at Halmstad University. The commission behind the project involved development of a machine that punches holes in packages for the inspection division at Tetra Pak. The task for the machine was to facilitate the process of making openings for testing in the company?s other equipment. Researches on different methods of cutting, types of automatization and possible designs were made. To implement the project a design and construction from the base where chosen.

Geosynteter för hållbara vägar : Modell för jämförelse av vägöverbyggnader med eller utan geotextiler och/eller geonät

The different material layers as part of a road construction fill all a function so theroad becomes durable, safe, comfortable and aesthetically pleasing. Recently, anew group of construction materials started to play an important role in roadconstruction ? geosynthetics.This thesis addresses the two most common types ofgeosynthetics used in modern road construction, namely geogrids and geotextiles.The most common use of geogrids is reinforcement of poor subgrade by usinggeogrid soil reinforcement, which occurs when road material particles wedge inthe geogrid?s mesh. Geotextiles act partly as a barrier that prevents the finermaterial in the below ground from being mixed with coarser upper material andalso act as a load spreader.Road contractors often face a choice of whether geogrids and/or geotextiles areappropriate in a particular road project and also how much profit the choice mightbring. This phase in the tender calculation process is the intended scope of thisthesis.The thesis deals with both the "hard" cost-function aspects and the "softer" values e.g.

Ny huvöppningslösning för Eco-Logs skördare : Från idé till tillverkningsunderlag

This thesis has been made in cooperation with the forestry machinery producerEco-Log in Söderhamn. The focus of the thesis has been to find a cheaper wayto open the large engine hood of the company?s harvesters. The goal was tofind a solution that could increase the value for the customers by being saferand simpler to use, or, at the least, keep these values at an equal level comparedto the previous solution.In order to make it possible to CE-mark the new solution, it was importantMachinery Directive that came into effect from the beginning of 2010.To begin with, a specification of requirements was set up. Thereafter, anumber of different basic concepts was retrieved and evaluated.

FORSKNINGSPOLITISK INTEGRATION GENOM INNOVATION

Research and innovation are areas that have been evolving quickly during recent years. However, it has been difficult for individual countries to make progress on their own. To solve this problem the European union have launched the most expensive research and innovation program to this day. By combining national governments throughout Europe, the EU wants to create cutting edge technology that will strenghten the region and make the union able to compete on a worldwide stage. However, trying to combine national governments has not been easy, the programs struggle with byrocracy and member states of the European union are tentative about supranational institutions. By engaging in the program national governments have been afraid of how this will affect their sovereignty.

Undersökningsmetodik för klorerade lösningsmedel i marken

Chlorinated solvent are volatile organic substances that can be harmful for humans and for the environment. Examples of common chlorinated solvents are perchloroethene, PCE, and trichloroethene, TCE. Chlorinated solvents appear as contaminants in soils primarily where they have been used as washing fluids in dry-cleaning facilities or as degreasers in metal industries. Chlorinated solvents are DNAPLs (dense non-aqueous phase liquids), which means that they are not easily dissolved in water and that they sink to the bottom of the aquifer. Adsorption to soils is low so chlorinated solvents are mobile in soils.

Balanserat styrkort : En fallstudie om vilka problem som kan uppstå vid implementeringen av Balanserat styrkort i ett sjukhus.

The Swedish healthcare systems have over the past decades experienced a major reorganization that involves reduction of costs and cuts due to the financial problems that the public health system faced. Healthcare was criticized because it was considered to be bureaucratic and inefficient (Funck, 2007). The solution to this problem was to focus on other measures rather than the economic measures, such as modernizing the healthcare instead of cutting down. Implementing a balanced scorecard in a public sector as a hospital, perceived as failures. This is due to several factors such as communication, knowledge and expected time are not taken into consideration when implementing the scorecard.

När räddningen slutar i självmord : en studie om unga flyktingars självmordsbeteende i Sverige, utifrån personals erfarenheter i sociala verksamheter

Background and aim: The number of refugees and unaccompanied children are increasing in Sweden and these people belong to one of the groups that are at higher risk for developing suicidal behavior. At the same time the lack of research on the subject is mentioned several times by different sources. The aim of this study is therefore to investigate suicidal behavior among young refugees between the ages 13 to 18 years in Sweden, from personnel experiences in social services.Method: We have chosen a qualitative approach with seven narrative interviews that each lasted for about one hour and were recorded. The interview guide was semi structured. The respondents in this study consist of one student counselor, workers from two child psychiatry departments and four different residential care homes for unaccompanied children and young persons.Results and conclusions: The respondents had the understanding that young refugees have been through a lot, lost their families and experienced difficult traumas and a tough refuge.

Strängluftning av vallfoder : Inverkan på ensilagets torkningförlopp, spill och smörsyratillväxt

When harvesting ley you hope to get a fast drying and a faster harvest. If there is a system with round bales, you need to have a dry matter close to 45 %. To make this as fast as possible, there is made a machine which pick up the grass with an pick-up. It turn the grass over and put it behind the machine (figure 2 and 4). There are few tests to prove the efficiency of this machine.

Vad är ?rätt? gjutkvalitet? Hur uppnås det?

Ever since ABB has begun diecasting their rotors instead of permanent mold casting it,variation in the quality of the cast has arisen. Diecasting is performed in three differentmachines, M1, M2, M3 with 400, 660 respectively 800 tons of die locking pressures.The aim of this thesis is to answer the following questions:What is the ?right? cast quality? How is the right quality achieved?For sizes 160-180 solutions will be proposed that consider eccentricity between thelaminate and the short circuit ring as well as elimination of the thin Al film that appearson the outer periphery of the rotors.Through considering the statistic material the most often diverging rotor type has beenidentified and one of the actual rotors has been sent to a laboratory to be analyzed inorder to establish the current defects. The result of the analysis shows that there areplenty of gas- and oxide-porosity.It has been proved that every time the dies temperature decreased below 120°C thecontent of gas porosity increased. It is due to rapid solidification of metal that flowsthrough the ?cold? laminate.It has confirmed that enhanced porosity in squirrel cage causes high impedance in therotors.

Simulation driven design of optimized sheet metal bracket

Det ständigt ökande trycket på minskande utsläpp och effektivare energianvändning driver utvecklingen av Scanias produkter. För att varakonkurrenskraftiga på marknaden behöver man leverera lastbilar med högre kvalitet och lägre bränsleförbrukning, det vill säga sänka transportkostnaderna förkunden. Ett steg i detta är att utveckla komponenter i fordonet som är optimerade iförsta hand med avseende på hållfasthet men även mot vikt och pris. En betydande andel av lastbilens komponenter är plåtfästen som ofta underprioriteras i produktutvecklingen. Examensarbetet fokuserade därför på att utveckla metoder för konstruktion av plåtfästen.En metod för att förbättra konstruktionerna är att arbeta med simuleringsdriven konstruktion.

Förbättringsarbete mot Lean Production på Tooling Support Halmstad AB

Nowdays an efficient production is critical to achieve for companies competing on the market for steel cutting tools. One of such companies is Halmstad based Tooling Support Halmstad AB that manufactures threading-taps, threading-dies and parting off tools, towards a centralized warehouse in Schiedam, Holland. The large amount of different products, approximately 2500 is a big contributor to the problem along with a new order system that creates a demand of low setup times. Previously the company was forwarded orders through quarter based prognoses which enabled planning of the production over a longer time span. Currently the newer order system ZENIT is in use and the company thereby gets their orders weekly.

Materialhantering till och från robot

Material handling is a term that includes all kinds of handling of material from a raw product to a finished one. ABB is active in the following segments; foundry, packaging and palletizing, metal industry and plastics industry.The demands for efficiency and reliability have been set very high in the industrial sector. Optimizing of the material handling will give the company higher cost-effectiveness. Around the robot there are different kinds of material flows, to optimize the cycle time, consisting of carriages combined in different ways.Motion Control is a complex system with main functions such as; positioning, synchronizing, indexing and more. The products in the system need to cooperate to make these functions possible therefore integration of motor- and servo products are important.

Lost in Identity : - A case study of three jewellery practices andhow they can function as codes of identity

During a major part of modernity the concept of identity was something that in many ways was predetermined for the individual. People in general remained in the same social spheres as the generations before, shared common religions and beliefs and where more or less bound to a geographic area. Identity and lifestyle was something that was adapted quite unreflected from habit and tradition. Though, during the cultural modernisation process that took place in the twentieth century, previous shared patterns of interpretation vanished and became individual.  Finding references, constructing an identity and establishing a self became individual.

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