Sök:

Sökresultat:

725 Uppsatser om Machine guidance - Sida 43 av 49

Ärtrev som substrat för biogasproduktion : En litteraturstudie och rötning i labbskala

Until 2020, 49% of Sweden's use of energy must derive from renewable sources. Greenhouse gases must as well decline with 40% compared to 1990 as a part of Sweden's 16 environmental objectives. Biogas is part of the effort to achieve these objectives, but as the demand for biogas increases, more substrates are needed to meet the demand. The purpose is to investigate the conditions for pea residue as substrate by performing lab-scale mesophilic digestion with different fractions and notch lengths and then to summarize pea residue as a substrate for biogas production. During anaerobic digestion, 1000 ml bottles were used as reactors for digestion.

Axellagring till Klasserare

GE Healthcare wants to investigate whether additive manufacturing would be an alternative method in their workshops in the Umea? plant. Additive manufacturing is called 3D printing in everyday language and manufactures details by building them up layer by layer in an automated machine. The purpose of this work is therefore to investigate how mature additive manufacturing methods are and how they could be used at GE.The work has been divided into three parts. The first section investigates how additive manufacturing would work in the production workshop at GE.

Do grizzly bears use or avoid wellsites in west-central Alberta, Canada?

The purpose of this report is to make an evaluation of the self-monitoring for scarification which Stora Enso is using and this study deals with the effects and importance of scarification. A comparison is made in this study with the purpose to highlight any differences between some of the leading forestry companies and significant forest organizations in Sweden. The companies represented in this report are Korsnäs, Mellanskog, SCA, Sveaskog and Södra. In the beginning of this study an interview form was set up together with Daniel Forsberg at Stora Enso. Stora Enso is the head object of this report and seven interviews were made within that company. At the other companies only three interviews were made within each one, with an exception to Mellanskog who wished four.

End of line test : En studie av företaget Emotrons linjetestning i produktionen

Emotron is a company specialised in developing, producing and marketing equipment to con-trol, monitor and protect processes and machinery driven by electric motors, with an applica-tion focus. Examples of uses for their products are fans, pumps, lifts and cranes.The project is to look at Emotrons end of line test. The company has seen that at the final test-ing there is a bottleneck that restricts the outflow and prevents an increase in the number of tested products.The purpose of this project is to review how Emotrons end-of-line test works today and if there is a possibility to make the test more efficient in such a way that the quality is not at risk, while increasing the outflow of tested products.The projects first step is to look at and analyse what is causing the bottleneck at the end-of-line. When the analysis is complete, the next step is to review whether there is a possibility to solve the bottleneck and if so in what way can this be done. Emotrons most overall objective of the project is to increase the outflow of the number of tested products without jeopardizing the quality.An analysis has been made on frequency inverters, soft starters and shaft power monitors.

Ljusdesign i trafikmiljö : exempel på gestaltning med effektbelysning för ökad trafiksäkerhet

Effektbelysning i trafikmiljö är ett nytt angreppssätt i strävan mot Nollvisionen, som är utgångspunkten för trafiksäkerhetsarbetet i Sverige. Upp emot 70 procent av de statliga belysningsanläggningarna har nått sin tekniska livslängd samtidigt som kraven på kombinationen av funktion, estetik och kvalitet har ökat i moderna belysningsanläggningar. Tidigare forskning beskriver ett samband mellan visuella kvaliteter och trafiksäkerhet och den här uppsatsen syftar till att undersöka hur gestaltning med effektbelysning i trafikmiljö kan öka trafiksäkerheten. Uppsatsen avgränsas till belysningsanläggningar i storskaliga trafikmiljöer och behandlar exempel på trafikplatser och vägbroar i Sverige och Danmark. För att få en bild av hur effektbelysningen gestaltats i dessa trafikmiljöer presenteras och undersöks befintliga belysningsanläggningar genom samtal med de involverade ljusdesignerna.

FE safety analysis of a high speed wood planer cutter. An alternative method to achieve the requirements of EN847 standard

In the last decades, high speed cutting has become an attractive technology in the wood industry. The possibility of reducing global costs in addiction with an increase in productivity, were the main reasons for the enlargement of the use of this technology. As usual, these advantages are accompanied by disadvantages that should be carefully analyzed. If on the one hand cutting forces are reduced with increasing cutting speeds, on the other hand, the centrifugal forces affecting the tool are higher. Exposed to such high loads, there is a considerable risk of tool failure that embeds hazards for both machine and workers.

Additiv tillverkning : Ett nytt alternativ inom tillverkningsteknik

GE Healthcare wants to investigate whether additive manufacturing would be an alternative method in their workshops in the Umea? plant. Additive manufacturing is called 3D printing in everyday language and manufactures details by building them up layer by layer in an automated machine. The purpose of this work is therefore to investigate how mature additive manufacturing methods are and how they could be used at GE.The work has been divided into three parts. The first section investigates how additive manufacturing would work in the production workshop at GE.

Hackelselängden beroende av skördemetod :

The conditions for a good silage process start with good wheather and choice of crop, then choice of harvesting machinery. The shorter and more mechanically treated crop, the better quality of the forage. (Pauly 1994). This study has examined the variations in chopping length depending on harvest method. Precision choppers works with a rotating chopping cylinder, where the crop is cut into pieces.

Omval på gymnasiet, varför?

 Denna undersökning syftar till att belysa elevers perspektiv kring orsaker till omval på gymnasiet. Uppsatsen är baserad på kvalitativ forskning och sex elever som gjort omval på gymnasiet har intervjuats. Ibland fokuserar omvalet på frånfaktorer och tillfaktorer. Orsakerna till varför elever bytte från ett gymnasieprogram var osäkerhet, dålig organisation, boende på annan ort, obekvämt boende, ångrat sitt yrkesval, tröttnat på ämnen på programmet, ointresse, lågt studietempo samt otillräcklig kunskap om sig själv och om programmet. Skälen att elever bytte till ett gymnasieprogram var intressen, osäkerhet och kamrater.

Studie- och yrkesvägledning - ett exempel från en högskola/universitet

Syftet med examensarbetet var att beskriva hur studie- och yrkesvägledare arbetar på högskola/universitet och hur studie- och yrkesvägledarna förhåller sig till de nya förutsättningarna. De nya förutsättningarna kan vara arbetslöshet, ett högre tryck, studenters behov och att övergången från skola till arbete blir längre. Som en inledning valde vi att förklara hur studie- och yrkesvägledare arbetar på dessa instanser. Därefter ville se om de nya förutsättningarna hade påverkat studie- och yrkesvägledarnas arbetssätt på den lokala och den centrala vägledningen. Avslutningsvis ville vi ta reda på hur studie- och yrkesvägledarna uppfyller studenternas behov av vägledning.

Jämförelse av Hypervisor & Zoner : Belastningstester vid drift av webbservrar

Virtualisering av datorer rent generellt innebär att man delar upp hela eller delar av enmaskinkonfiguration i flera exekveringsmiljöer. Det är inte bara datorn i sig som kanvirtualiseras utan även delar av det, såsom minnen, lagring och nätverk. Virtualiseringanvänds ofta för att kunna nyttja systemets resurser mer effektivt. En hypervisorfungerar som ett lager mellan operativsystemet och den underliggande hårdvaran. Meden hypervisor har virtuella maskiner sitt egna operativsystems kärna.

Förändrad aptering av massaved från 3- till 4-meterslängder vid gallring inom Södra : en systemanalys av effekter från avverkning till levererad virkesråvara

The costs of logging and of transportation with truck are dominating the total cost of wood delivered at industry. To support the profitability for the members' forestry the processing and handling with the timber has to be as efficient as possible. Increased length of pulpwood in thinning is one conduct that can result in higher productivity and/or lower costs. The study is scaled as a system analysis with the aim to exemplify the differences between working with 3- and 4-meter as standard length of pulpwood, related to biological aspects, timber receipts, cost of logging and cost of transportation with truck. Important aspects are if the change is technically and biologically feasible and economically profitable.

Steget från tanke till handling : En studie om viktiga faktorer för nyföretagande bland kvinnliga studenter

Women who support themselves through self-employment are relatively low compared to men, in Sweden. Women make up around 30 percent of newly started enterprises. The Swedish government considers that the Swedish economical growth would increase if there were more companies. Through encouraging women to start enterprises to the same extent as men, Sweden can increase growth rate and create more employment. Despite all efforts being made, advances are not really reached.

Automatisering av flexibel fixtur

This thesis was conducted at Linköping University and SAAB Aerostructures, Linköping, and focuses on the automation of flexible fixturing in machining applications. At Linköping University a project called "Koofix" is conducted with support from Strategiska stiftelsen and several manufacturing industries including SAAB Aerostructures. The purpose of this project is to develop a more cost-effective, flexible, technique for fixation of workpieces during processing and assembly.Fixtures are an important part during the machining process, especially if you process the parts with high accuracy. Today a large number of fixtures are used at SAAB and they would prefer to reduce the number of fixtures by using flexible fixtures instead. SAAB uses one fixture for each article and this result in a high fixture cost and it also takes time to design and construct a new fixture.There are several advantages with using a flexible fixture such as that you can process workpieces with different length, height and thickness in the same fixture.

Dokumentationskrav vid internprissättning : En analys av lagförslagen till svenska dokumentationsregler i propositionen 2005/06:169

According to the arm?s length principle, transactions between associated multinational en-terprises (MNE) shall be based on the same conditions as transactions between unrelated parties. This means that intra-group prices on cross-boarding transactions must be at arm?s length range and consistent with conditions in the open market. The arm?s length principle is expressed in article 9.1 of the OECD Model Tax Convention and Chapter 14 section 19 of the Swedish Income Tax Act.When transfer pricing between associated MNEs is not reflecting the arm?s length princi-ple, states face the possibility of losing tax revenue.

<- Föregående sida 43 Nästa sida ->