577 uppsatser · sida 24 av 39
en teknisk och ekonomisk utredning
… different methods for drying biomass and existing pellet production plants have been studied. Eight different alternatives (two production capacities, two pressures of drying steam and two drying systems) have been evaluated based on electricity production, heat production …
… perennial weed with deep lying rhizome, which can vegetatively generate new plants. The mechanical control of coltsfoot that is used today, "starvation", which consists of several cultivations of the soil, which fragmentises the rhizome. This results in production of new shoots …
panna 5, Mälarenergi AB, Västerås
During the past 30 years the fuels for energy production in heating and power plants have changed. Fossil fuels have decreased in usage whereas bio fuels in Sweden have increased with 60% since the 1970's. Different fuels affects combustion and the release of various substances …
kan anlagda våtmarker med vattenrening som huvudsyfte bidra till naturvård och biologisk mångfald?
… on biodiversity in the region, probably also on other groups of organisms than plants, such as birds, reptiles and evertebrates. Though, there is a risk of an ecological community with more uniform structure and with less species in the future, because of competition from …
studier av kretslopprojektet i Enköping och dess applicering på en kommun i Ryssland.
… make beneficial products. In Enköping the rest products from waste treatment plants and private sewers are used to fertilize and irrigate Salix plantations that later are harvested and burned at the local combined heating and power plant, ENA Energy AB, to produce electricity …
… Min uppgift har varit att ta fram ett före- och efter material till Idea plants presentationer om designad kommunikation. En analys av tre företag som är verksamma inom samma bransch har gjorts. Detta för att definiera ett kommunikationsproblem hos ett av företagen. En …
Barns tankar om den ekologiska processen
… for decomposition rather than a part of an ecology cycle. Also the idea about plants getting their food from the soil showed to be common. Keywords: ecological processes, early school years, biology, children’s ideas, circulation
Är Echinacea och Ginkgo terapeutiskt verksamma?
… They were used in ritual acts to reassure the Gods and as medication. Plants as rhubarb and ginseng were used in China long time ago. The Egyptians had knowledge of herbal medicine such as aloe, myrrh and henbane, 1550 BC. The father of medicine Hippocrates used a large number …
… litterature reviews, benchmarking and actual visits at the subsidiaries? plants, Isolamin AB, Momec AB and Premec AB. The purpose is also to create a survey of the logistic flows inside the supply chain of the subsidiaries. The sister companies were also compared in a …
tillståndsbaserat underhåll på smörj- och hydrauloljesystem
… the turbine has to be shut down. This due to today’s expanded capacity of the plants. Many discussions and interviews have taken place during the project. Information has also been obtained from documents, literature and the Internet. A Failure Mode and Effect Criticality …
… construction- and industrial waste, retted sludge from sewage treatment plants and soil, which all can produce large quantities of methane gas. The investigation about the different methods for conducting a water balance resulted in the presentation of two methods. One of the …
… - Give the fire brigade better feedback from actual events on nuclear power plants. - Education and training in suppressing fires in electrical equipment. The probabilistic safety assessment strives to be as realistic as possible. Consequently this study recommends not giving …
Möjligheternas Yrke
Kärnkraften ser vi som ett miljövänligt och bra alternativ för framtiden. Därför kändes det intressant att undersöka om vi som blivande sjöingenjörer har en framtid där efter våran karriär till sjöss. Syftet med detta arbete är att få ökad insikt om vilka teoretiska kunskaper …
… report describes the Nordic power market, production planning of hydropower plants and regulation power. A case study has been performed with the purpose to understand how the new demands and the strategy developed in this report might influence the regulation bids. The results …
… that may be favored by the changing climate are for example those which are C3-plants, species with invasive characters, grass weeds and perennial weeds. As a result of a warmer climate the climate zones will be moving up north and there is a risk that troublesome weeds …
