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5963 Uppsatser om Small scale biogas production - Sida 48 av 398

Intuition : En studie av beslutsfattande i mindre svenska företag

Background: Previous studies have shown that intuition occurs in decision making in small enterprises. However, these studies have not illuminated which decision attributes leads to intuitive decision making.Purpose:The purpose with this study is to contribute with an increased understanding of which decision attributes leads managers in small enterprises to use intuition in decision making and why these decisions attributes have an impact on the role of intuition. The follow-ing research question will be answered in our study: Which decision attributes leads to intui-tive decision making in small enterprises, and why?Method: To answer the research question we have conducted semi structural interviews with managers in small enterprises to achieve a deeper understanding of the role of intuition. We have also used a method called Visual Card Sorting as a complement to the semi structural interviews.Result/conclusion: The result of our study indicates that the relevance and the uncertainty of a decision have the greatest significance in the use of intuition in decision making in small enterprises.

Resource planning for internal logistics : A tool designed for the material handling department at Scania Axles and Gearboxes

This master thesis is performed at Scania Axles and Gearboxes, a production plant located in Södertälje. Within the plant axles, gearboxes as well as central gears are assembled from components to finished products. All production is conducted on production lines, with a pre-determined rate, which is supplied with components by the material handling department. Since the production quantity and the mix of product variants produced on the production line is customer order-based, the number and type of components needed for production as well as appropriate staffing within the material handling department is difficult to predict. Scania is currently using a number of different resource planning tools for each material handling-department within Axles and Gearboxes to visualize the workload within the departments.

Bidragsanalys av dimensioner och postningar : en studie vid Vida Alvesta

An old and well known problem in sawmilling is to determine which dimensions /products those are most profitable to produce. Existing optimization models maximize the value of the log. In other words, based upon the market prices of the dimensions the models calculate the best way to split the log. Yet there is a great uncertainty if the most well paid dimensions really are the most profitable to produce. The costs of the process from lumber to sawn products are hard to determine and are therefore often left out from the optimization process. In this study the economic contribution of different dimensions/products are analysed.

Landvinning : scenarier för efterbehandling och gestaltning av Aitikgruvan, Gällivare

Open pit mining creates huge amounts of tailings and waste rock deposits. Due to it's content of sulphide minerals, predominantly pyrite (FeS2), there is a risk of oxidation and formation of acid water containing heavy metals, known as Acid Rock Drainage (ARD). To prevent the process of oxidation, the tailings and waste rock have to be reclaimed. The most commonly used methods of reclamation are a coverage of water or soil. Mining also results in a large-scale interference in the landscape that will make an eternal change of its appearance.

Välmående individer har kontroll

Forskning har indikerat att individer med högt välbefinnande är bättre på att bemöta stress. Syftet med föreliggande studie var att undersöka vilka faktorer som skiljer individer med högt välbefinnande från dem med lågt välbefinnande, samt om deltagarna med högt välbefinnande har en bättre förmåga att hantera stress samt balansera krav och kontroll. 184 personer, varav de flesta kvinnor, har fått fylla i Ryff Psychological Well-being scale, Perceived Stress Scale och Job Content Questionnaire för att mäta välbefinnande, upplevd stressnivå och balansen mellan krav och kontroll. Två grupper skapades, en med lågt (n=20) och en med högt välbefinnande (n=20). Det framkom att gruppen med lågt välbefinnande ansåg sig ha signifikant lägre kontroll än gruppen med högt välbefinnande (p=.015).

Career choice:The relationship between personality, state anxiety and the career decidedness among Swedish upper secondary school students

The main purpose of this study was to inquire into personality and the state anxiety in relation to career decidedness scale among students in upper secondary school. The participants were 124 students in three grades and respectively non vocationally oriented classes. The participants were asked to grade themselves on a scale in relation to the statements regarding, state of decidedness for career choice, personality (NEO FFI, Costa & McCrae, 1985. Sweden, Gerontologic Center) and anxiety (AnTI, Wells, 1994). The results showed no significant relationship between personality and state of anxiety that could be connected to the decidedness for career choice.

Distributionsekonomisk optimering av dagligvaruhandelns lokalisering : förstudie till ett forskningsprojekt

The structure and performance of grocery distribution in Sweden has changed profoundly since the second world war. Increasing access and usage of the private car, in combination with an accommodating town planning has enhanced the exploitation of scale economies within distribution firms. There is, however, some ambiguity concerning the overall efficiency of the distribution system when the costs associated with travelling and purchasing performed by households are treated as an integrated part of the total distribution cost function. The purpose of this master thesis is to develop the foundation of a spatial optimisation model, which defines the most efficient distribution system. The underlying idea is that the optimal localisation and size of grocery stores is a function of economies of scale within the firms weighed against distributions costs within the households, such as transportation costs.

Konsekvensutredning inför införande av koncerngemensam systemplattform : Vad skulle det innebär att införa SAP på KSU, Kärnkraftssäkerhet och Utbildning AB

The implementation of large IT-systems is a complex area where many aspects have to be taken into account.KSU, Kärnkraftssäkerhet och Utbildning AB, is a small company in the Vattenfall group that is increasingly being urged to implement SAP, one of the largest ERP-systems on the market. Vattenfalls purpose with SAP is to centralize certain processes within economy that are common to all the companies in the group, this to gain benefits with economics of scale. However, KSU is not convinced that SAP is a suitable system and that the common processes apply to them.The purpose of this degree project is to investigate if SAP is a suitable system and if KSU will benefit from a transition to SAP. Three perspectives were applied to further specify important areas of the main question. From a technical point of view KSU:s demands on a system was mapped against SAP.

Yrkesrelevant Gymnasiearbete på El- och Energiprogrammet

The purpose of this development project is to create a model for working with a high school project in Electrical and Energy Program. It should be conducted in a form like companies do according to the goals from The Swedish National Agency for Education. In order to fully perform this we use the concept of Young Entrepreneurship. The model is created according to the new conditions from The National Electrical Safety Board. There is now an exception saying that a student during education is released from the demand of employment that is the normal procedure where you are under supervision from a certified electrician. During the project there has been theoretical and practical examinations in order to clear out the advantages and disadvantages using this model, but also to examine whether it is useful in the future and to what extent it can be used. The result indicates that the model is useful and fulfills the goals from The Swedish National Agency for Education but that the model has its limitations and difficulties.

Goat production in Laos and the potential of using Erythrina variegata as a feedstuff

Lao People?s Democratic Republic (PDR) is a country where the majority of the population works within the sector agriculture in one way or another. The number of goats are increasing and the animals can be an important income source for families. However, during the dry season, lack of feed is a great problem for the farmers. Fodder trees have shown great potential as dry season feeding, due to that the trees often hold green and fresh leaves a long time into the season, compared to grass that dry out quickly.

Statusbedömning och förbättringsförslag för startkedjemaskineri, startkedja och linspel för stränggjutningsmaskin

The main goal with the master thesis has been to do a status evaluation of the chain machinery with its start chain and wire to secure the production on a short basis due to that a reconstruction is not planned at this time. An evaluation of the condition of the start chain and the rollers in the chain depository has been done. An offer has been requested for a new start chain and the evaluation of the start chains may be a basis for the decision taking. The production has been able to go on, although it has arisen some problems which have been difficult to find the causes for. There is no gathered ?picture? of the machinery status and a mapping of each machinery has been compiled of comprehensive logs.

Volymsrapportering vid drivningsarbete

Reporting harvested and forwarded volumes are important for the forest industry as it provides information of the size of the stock and facilitates logistics. Figures from Holmen Skog show low reporting frequency. The purpose of this study is to investigate the reason and find suggestions for improvement. A total of 17 machine operators were interviewed using a questionnaire combined with open questions. The results show that the majority of the machine operators find it simple to use the reporting system, although, some of them reports that it doesn?t always work as supposed to.

Påverkar grad av self-efficacy samt fysisk aktivitet studenters upplevelse av stress?

Stress är idag ett område som är allt mer omdiskuterat och anses ha inverkan på den psykiska hälsan. Många studerande på universitetsnivå upplever någon gång under utbildningen stress, och detta kan bland annat förklaras utifrån tidspress, ny stad samt ekonomi. Syftet med denna studie var att ta reda på huruvida stress hos studenter kan förklaras utifrån self-efficacy och fysisk aktivitet, samt om det finns någon skillnad i upplevd stress mellan manliga och kvinnliga studenter. Det var 76 av 92 tillfrågade studenter som svarade på hela enkäten (39 män och 37 kvinnor) som innehöll två standardiserade tester, General Self-Efficacy Scale respektive perceived stress scale. Resultatet visade ett signifikant samband mellan variablerna stress samt self-efficacy.

Sjuksköterskors upplevelser och copingstrategier vid palliativ hemsjukvård

Aim: The aim of the current study was to investigate nurses? experiences of caring for palliative patients in palliative home care, and to examine the coping strategies they use.Method: The study was empirical descriptive with qualitative approach. The data was collected by nine semi-structured interviews and analyzed by using manifest content analysis.Result: By analysing data three categories: Positive experiences of palliative home care, Stressful experiences of palliative home care and Problem-focused coping strategies, and 15 subcategories, were distinguished.Conclusion: Experiences of palliative home care were both of positive and challenging characters. Stressful situations were managed by problem-focused coping strategies. Nurses are in need of the work situation at home to become more ergonomic and designed to protect the nurse?s physical wellbeing.

Hållbar köttproduktion och köttkonsumtion i Dalarna

The release of green house gases and the environmental impacts humans have on the environment are huge and might cause irreversible changes to our earth. Meat is considered to have large impacts on the environment, especially beef meat and therefore there have lately been considerable discussions on the sustainable level of meat consumption and production. The main goal with this thesis is to study sustainable meat production and meat consumption in the county of Dalarna in Sweden. Indicators for sustainable meat production and meat consumption were developed and applied on three cases. Interviews were carried out with a municipality in the region that represents the consumer and three beef farmers that represents the producers.

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