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… must often walk far distances to feed the livestock. This affects the animals? production, especially of milk. Previous studies have investigated how to improve milk production in terms of milking strategies in cattle. Letting the calf suckle at milking improves milk yield and …
-under jäsning
… of story characters between historical Norse myths and contemporary film productions. The chosen historical texts are two stories from Norse mythology which render a myth about Thor and a giant named Hrunge as well as the myth Trymskvädet. The selected movies are two of the …
<em>En analys av karaktärsskildringar i fornnordiska myter och filmer om superhjältar</em>
… of story characters between historical Norse myths and contemporary film productions. The chosen historical texts are two stories from Norse mythology which render a myth about Thor and a giant named Hrunge as well as the myth Trymskvädet. The selected movies are two of the …
This project aims to investigate whether algae can be used for biodiesel production in Italy. Algaes are a good option since they are fast growing and do not occupy arable land. The aspects that have been considered are growing, harvesting, which algae strain that is most …
… a model that aims to cost effectively improve productivity in a manufacturing production process. The study highlights the importance of having knowledge about customer needs and using a holistic process perspective when improving productivity to identify the relations between …
The Swedish production of biogas was 1,5 TWh 2011. About half of the production was used as vehicle fuels. The cost for upgrading biogas depends on the size of the biogas plant and its gas production. If the gas flow is low the cost will be high. However, further development of …
… was done by batch experiments in a laboratory environment to examine the gas production and composition of the produced gas. Biogas production is a complex anaerobic digestion process in which various microorganisms decompose the substrate in steps and at the end produce biogas …
utvärdering och optimering av anläggningen och uppgradering av biogasen
Biogas is an expanding sector within the broad field of agriculture and animal production. Small-scale biogas offers local combined power and heating production and the substrate is transformed into high-quality biological fertilizer. This bachelor thesis focuses on a pig farm …
… is that the significant factors of the environmental impact from the pulp production, the viscose and lyocell processes depends on: chemicals used in the process, energy and energy source, the possibility of purifying emissions to air and water and recycling of energy and …
a study to evaluate the prevalence of salmonella spp and importance of the disease
In Peru guinea pigs are raised for meat production and salmonellosis is considered as a major problem. Studies have detected salmonella in animals with enteritis and pneumonia. Salmonellosis exists both in an acute and a chronic form. In the rural areas the diagnosis is made …
Aquaponics is a food production system consisting of a consecutive cultivation of plants and aquatic animals, fish or shellfish, in recirculating water. The plants feed on the nutritious effluents from the fish tank and bacteria converts ammonia from the fish tank into nitrate …
soil carbon and yield modelling for crop rotations with rye
… material, primarily food waste or animal manure, has been used for biogas production. For rotations with ley, a case where ley was used for biogas production and the resulting digestate was spread on the fields was also tested with all scenarios. Simulations were run over 48 …
En kvalitativ studie om användningen av practice research.
The aim of this study was to investigate the production of knowledge that can emerge in the use of Practice Research by Mirror method. This by finding out what it is in the practical work that leads to the production of knowledge and how knowledge production takes form. The …
jämförelse av befintlig pastörisering med integrerad termofil hygienisering på Kungsängens gårds biogasanläggning i Uppsala
… sanitation from an energy point of view. The pasteurization´s impact on biogas production and energy yield was examined through experiments with two laboratory digesters, of which one was fed with pasteurized substrate and the other with non-pasteurized substrate. For the …
Potential för att minska tomgångsförluster med industriella styrsystem
… considerable part of industries? energy usage can stem from idle times in the production. This thesis, carried out at Siemens Industry sector, evaluates the potential for using the control system to automatically put machines into energy saving mode during idle times. The main …
