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903 Uppsatser om Organic reduction - Sida 20 av 61

Tungmetaller i lakvatten : avskiljning med mineraliska filtermaterial

Four different kinds of filter-materials with reactive surfaces have been studied concerning their capacity to absorb heavy metals in leachate from a municipal waste deposit. The heavy metals studied were: lead, cadmium, copper, mercury, chromium, nickel and zinc. The leachate contains high levels of dissolved organic carbon (DOC) and has a high pH-value along with a high buffer capacity. These characteristics of the leachate make it difficult to remove pollutants and require efficient filters. The filters that were examined in the report are blast-furnace slag with CaO, sand covered with iron oxides, olivine and nepheline.

Betydelsen av programmet Mindfulness-baserad stressreduktion för kvinnor med bröstcancer

BakgrundForskning har visat att Mindfulness-baserade program har positiv inverkan på olika sjukdomar i samband med traditionell behandling. Mindfulness-based stress reduction (MBSR) bidrar till snabbare tillfrisknande, minskad stress och ökad livskvalitet (Ludwig & Kabat-Zinn, 2008). Enligt Baer, (2003) uttrycker kvinnor ett behov av komplement till den vanliga bröstcancerbehandlingen. En av de vanligaste komplementmetoderna som används är MBSR ? åttaveckorsprogrammet. SyfteSyftet var att belysa betydelsen av mindfulness och Mindfulnss-based stress reduction i anslutning till behandlingen av kvinnor med bröstcancer.  MetodLitteraturöversikt var den metod som skapar överblick över ett ämne.

Epixylic, forest-interior bryophytes in young stands : importance of local environmental variables, propagule sources, and distance to bordering woodland key habitats

The reduction of coarse, dead wood is considered to be the biggest threat to flora and faunain boreal forests. Extensive harvest of logging residues would increase this reduction evenmore. However, the role of dead wood created at final felling for boreal, epixylic species isstill largely unclear. It is therefore of interest to examine whether epixylic species inhabit thedead wood in young, boreal stands, especially species considered to be confined to forests inlate successional stages.The aim of this study was to investigate whether forest-interior species in fact can inhabitearly-successional forests arisen after logging. The study was conducted in young standsbordering dead wood rich woodland key habitats.

Fröodling av Raj- och rörsvingel i Sverige

Festulolium (Festulolium) and tall fescue (Festuca arundinacea) has not been grown inSweden over a longer period. So far there is no greater area cultivated, but the area isincreasing. Festulolium and tall fescue are expected to eventually replace meadowfescue in many leyseed mixtures to dairy cows in southern and central Sweden. Tallfescue has in recent years become popular again. Festulolium is a hybrid betweenryegrass and fescue.

Betesdrift vid automatisk mjölkning i ekologisk produktion :

An automatic milking (AM) system should be combined with some form of controlled cow traffic to minimize the time spend on fetching cows to milking and to increase the milking frequency. By restricting the hours spent on pasture per day you optimise the AM system use during pasture period. A reason for this is becuase cows do not return to the stable for milking during night which cause that the milking unit stands empty those hours. In organic production it is required that the cows should be able to graze a certain amount of daily dry matter (DM) intake on the pasture. In the county of Dalarna where the farm is located the yield of the pasture is about 3000 kg DM per grazing season and hectar.This means that the pasture area should be 14,25 hectare to 57 milking cows.

Effekt av naturligt förekommande beta-glukan hos vuxna med hyperkolesterolemi ? en systematisk översiktsartikel med fokus på livsmedel i Svensk handel.

Sahlgrenska Academyat University of GothenburgDepartment of Internal Medicine and Clinical NutritionAbstractTitle: The effect of naturally existent beta-glucan in adults with hypercholesterolemia. - a systematic review with focus on the Swedish food market.Author: Ida Edman Hellberg, Frida HanssonSupervisor: Mette AxelsenExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: May 01, 2014Background EFSA states in 2010 that there are good evidence that three grams of beta-glucan/day from oat as a part of a balanced diet, has a positive effect on total cholesterol and LDL.Objective Evaluate if there is evidence for primary treatment of lifestyle related hypercholesterolemia with products naturally containing beta-glucan.Search strategyIn February 2014 the databases PubMed and Scopus were used for article research. The search terms used were; cholesterol level, beta-glucan, hypercholesterolemia, oat and barley.Selection criteria Articles, written in Swedish and English, on RCT-studies conducted on otherwise healthy adults with hypercholesterolemia (serum cholesterol >5,0 mmol/L) were included. The intervention product must naturally contain beta-glucan, and an equally product should be retailed in Swedish grocery stores. The control group needed to be supplied with a placebo product and the participants could not be on any lipid-lowering medication.

Bulleråtgärder vid kapsåg

Uppsatsen behandlar bullerdämpning vid kap på ProfilGruppen Extrusions AB i Åseda. Problemen med ljudnivån beror bland annat på stomljudet som alstras av kapen i de långa profilerna. För att sänka ljudnivån har fastklampningskonstruktioner tagits fram som dämpar stomljudet och förslag på vidare åtgärder rapporterats.Försök och jämförande mätningar av ljudnivån har utförts för att få ett bra underlag att utvärdera. Resultaten av försöken med viskoelastisk plast som dämpelement visar en viss dämpning. Dämpningen kan med all sannolikhet bli större med användning av tjockare dämpelement..

Energy efficient storage of biomass at Vattenfall heat and power plants

Storage of biomass is often associated with problems such as heat development, dry matter losses and reduction of fuel quality. The rise in temperature can potentially cause a risk of self-ignition in the fuel storage. Moreover, emissions from storage piles can cause health problems in the surrounding. The dry matter losses and reduction of fuel quality can have economical effects. The aim of this thesis project is to develop guidelines on how to store large amount of biomass at Vattenfalls heat and power plants in an optimal way.

Ekonomiska konsekvenser av etanolproduktion i östra Sverige : en analys ur lantbrukarens och förädlingsföretagets perspektiv

This study analyses the economic consequences due to ethanol production in Eastern Sweden. The analyses consider the cooperative and the farmers as one vertically integrated company. The area that found the market in this study is illustrated in figure 1. The analyses assume that all members act jointly with the objective of maximizing joint profits at the farm level as well as at the cooperative firm. A mathematical model is created to calculate the optimal use of arable land.

Vektorkvantisering för kodning och brusreducering

This thesis explores the possibilities of avoiding the issues generally associated with compression of noisy imagery, through the usage of vector quantization. By utilizing the learning aspects of vector quantization, image processing operations such as noise reduction could be implemented in a straightforward way. Several techniques are presented and evaluated. A direct comparison shows that for noisy imagery, vector quantization, in spite of it's simplicity, has clear advantages over MPEG-4 encoding..

EU ger eko bland korna - från uppbundet till lösdrift :

ABSTRACT For hundreds of years there has been a tradition with tethered dairy cows in Sweden. The last decades the old fashioned way to hold cows have been questioned and the number of dairy cows in loose housing has been increasing. Last year (2004) 19 percent in total of all farms with milk production in Sweden had their cows in loose housing. Because of EU-legislation concerning all organic production no farms are allowed to build tie stalls any more and after 2010 all organic dairy cows are supposed to live in loose-housing systems. The aim of the thesis was mainly to find out the number of farms with tethered organic dairy cows and if they will continue after the year 2010. Furthermore the purpose was to study if there are any regional differences, how countries similar to Sweden interpret the EU-decision about tethered cows and differences in buildings between organic and conventional farms and the reasons to them.

Framtidens energieffektiva flerbostadshus

The housing sector of today represents for almost 40% of the energy consumption, an energy consumption of which the major part consists of non-renewable energy sources. This is not sustainable and utilization of new energy-efficient technologies in buildings can be a step in the right direction, towards a sustainable energy society.This report has been made on behalf of and in cooperation with Älvstranden Utveckling AB in Gothenburg to examine how future energy-efficient technologies can affect the energy demand in energy-efficient multi-dwelling buildings.The report is based on Älvstrandens passive house, Hamnhuset, a house whose energy consumption is far below the BBR's requirements. The report looks at the opportunities for improvement within windows, insulation, solar energy technologies, as well as white goods. Computer simulations are then made to apply the selected technologies into a reference building. Technologies are selected from an energy efficient perspective and no account has been taken of other aspects such as the economy.

Utvärdering av olika sätt att hantera avloppsslam i Värmdö

Important issues for the local authorities are what to do with the sludge produced insewagetreatment plants. The tax for landfill leads to higher costs with 250 SEK/ton. On the 31December 2004 it will be forbidden to landfill sludge.In Sweden the yearly production of sludge is 240 000 tons, counted as DS. The phosphorouscontent is 3 % in sludge. The total yearly production of sludge gives 6000 tons of phosphorous.

Biogaspotential vid samrötningav mikroalger och blandslam från Västerås kommunala reningsverk

Because of the increasing trends in energy consumption and increased environmental awareness, greater focus has been placed on improvement and development of renewable energy sources. An already proven and accepted method is biogas production from anaerobic digestion at municipal wastewater treatment plants.In the waste water treatment process solid material and dissolved pollutants are separated from the water, forming a sludge. The sludge is separated from the process and stabilized during anaerobic digestion or aerobic aeration. Most often, mesophilic anaerobic digestion is used. Because of degradation by microorganisms, biogas with a high content of methane is formed during the digestion.

Förändrar sprututbytesverksamhet livskvalitet och riskbeteende hos de som deltar och vilka insatser erbjuds?

Syftet med studien var att undersöka hur personer med ett injektionsmissbruk, som medverkade i sprututbytesverksamhet i Sverige, upplevde att deras livskvalitet blivit annorlunda. Vidare undersöktes också vilka insatser de blivit erbjudna och om de upplevde att de hade ett minskat riskbeteende. Frågeställningarna som användes i studien för att undersöka detta var:? Vilka insatser inom sprututbytesverksamheten erbjuds personer med injektionsmissbruk att ta del av?? Hur använder sig personer som medverkar i sprututbytesverksamhet av den kunskap de erhåller om hur de ska minska sitt riskbeteende?? Hur upplever personerna som deltar i sprututbytesverksamheten att deras livskvalitet blivit annorlunda?För att kunna svara på frågeställningarna användes en enkät som skickades till sprututbytesverksamheter i Sverige. De centrala begrepp som går att återfinna i studien ärharm reduction och livskvalitet och dessa begrepp är väsentliga när det gäller konstruktionen av enkäten i relation till syfte och frågeställningar.

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