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905 Uppsatser om Additional moisture - Sida 34 av 61
The effect of additional nitrate and sulfur in the diet on the methane production in cattle
A growing population together with a change in food habits to a more diverse diet containing more animal products such as meat and milk makes the possibility to produce and sell products of cattle a growing market. And at the same time there is an ongoing debate about global warming, where raising cattle is questioned due to their high production of enteric methane. To be able to raise animals in a more environmental friendly way and at the same time improve productivity in a developing country such as Vietnam would be favorable. The use of feed additives with high electron affinity could decrease the methane production and at the same time improve the gross energy digested. Nitrate and Sulfur are both good electron acceptors, but due to its toxic effects the use of nitrate in feed has been neglected.
Hallsta Pappersbruks virkesförsörjning
Competition of spruce fiber raw materials has increased dramatically in the last few years, leading to the fact that transportation costs in the current situation represents a much larger share of the total raw material cost. The Holmen-owned pulp industry Hallsta Paper Mill's location on the coast also constitutes a problem, because of the lack of raw material, which is much larger there, than for a pulp mill located in the hinterland. For a coastal industry it?s therefore natural to import much of the raw material by boat or to buy it from the timber terminals, in order to maintain good profitability. The purpose of this study was to analyze how the size of Hallsta Paper Mill timber supply area, without competition, with competition and with terminal use, affects the company ?s transport costs.
Optimering av bromsdetaljer i gjutstål
Background: Research has shown that people with limited hand function , and above all osteoarthritis of the thumbs , a limited task ability in daily activities. At a disabilities can be the person's identity, well-being and ability to participate in society is changing. Purpose: The purpose is, through a literature review describing occupational therapy Conservative interventions for people with osteoarthritis of the CMC 1 joint and its consequences for the performance of activities of daily living . Procedure and Analysis: The method in this study, a systematic review of scientific literature used. Database search and manual search occurred during the period from March 2014 to May 2014 .
Undervegetation : användning av vedartade marktäckare i anläggning
The use of the robust and durable woody ground covers is increasing, not in the least in public places. The group includes low shrubs of different height that effectively build low, tight vegetation that covers the ground. Despite all the good qualities the knowledge about them is quite low and there are ideas about them of being dull.
The woody ground covers manage to struggle against weeds effectively by competing for nourishment and water, but above all, by the canopy of the ground covers that prevent the weeds from getting enough light. In that way the woody groundcovers can effectively compete with the annual weeds.
Utökning av mätområdet för turbinverkningsgraden på avgasturbo
The Goal with this Master of Science thesis is to expand the possible turbine efficiencymeasurements on an exhaust turbocharger. It was done as a part of the CICERO competencecentre. To feed the turbine with air a special flow rig has been used. Instead of loading theturbine by just restricting the compressor flow a docking system for an electrical dynamometer isdesigned to use the dynamometer as an additional loading source. By using an electricaldynamometer as loading device for the turbine, measurements are not depending on compressorperformance.A large part of the work consists in designing accessories for the dynamometer.
Tilläggstjänster för långsiktig överlevnad i svensk transportindustri
Bakgrund: Svenska transportföretag är utsatta för hård konkurrens från utländska företag. För attkunna överleva måste de svenska transportföretagen skapa mervärde åt sina kunder.Problemformulering: Vilka faktorer är viktiga vid utformning av tilläggstjänster för att svenskatransportföretag ska nå långsiktig överlevnad?Syfte: Syftet med detta arbete är att analysera och utvärdera transportköpande företags behov avtilläggstjänster.Metod: Uppsatsen har ett hermeneutiskt synsätt. Författarna använder sig av en kombination avkvalitativa och kvantitativa undersökningsmetoder för att generera en djupare förståelse ochmöjlighet att dra vissa slutsatser. Forskningsansatsen är deduktiv.Teorier: De teorier som används i uppsatsen är: Mervärdesteorin, Involveringsteorin, Nätverkssynsättet.Empiri: Empirin består av primärdata inhämtad via intervjuer och enkäter med representanter fråntransportköpande företag.Resultat/Analys: Vi har kommit fram till att majoriteten av de tillfrågade företagen i dennaundersökning har önskemål om att få ta del av transportföretagens tilläggstjänster och att eventuellti samråd med dessa även utveckla nya.Slutsats: Transportköpande företag är i hög utsträckning höginvolverade i transporter.
Kalcium- och fosforsmältbarhet hos växande hästar
In the latest edition of NRC (2007) the feeding recommendations for Ca and P to growing
horses were increased with 35 and 25 %, respectively, based on results from a Canadian study
showing that daily endogenous fecal losses of Ca and P were greater than previously
suggested. A Ca absorption efficiency of 50 % is used for all horses. However, the true
absorption efficiency might be as high as 70 % in young horses. P absorption efficiency is
assumed to be higher for growing horses because their diets are often supplemented with
inorganic P. Thus, an efficiency of 45 % is used for growing horses as compared to 35 % for
mature horses.
Lärarna och Studi.se : En studie av lärares uppfattningar om användande av det digitala läromedlet Studi.se
This study is a thesis project for the program Civilingenjör och Lärare at KTH. The study was conducted in spring 2014 in collaboration with Komplementskolan AB which has developed the educational material Studi.se, the focal point of this study.The overall aim of the study is to increase the knowledge of the participant teachers? conception and use of the educational material Studi.se. The second purpose is to increase knowledge about the forms of use some of these teachers apply or claim to apply when using Studi.se. Theoretical framework used is constructivism and the notions of Piaget: adaptation, assimilation and accommodation.
H?RNERVMOSSANS P?VERKAN P? LJUNGHEDENS ARTM?NGFALD: En f?ltstudie fr?n Sandsj?backas naturreservat
Campylopus introflexus is a moss species that originates from the southern hemisphere and has spread worldwide during the 20th century. Today it is classified as an invasive alien species in many countries, and it has been seen during inventories that it has become widespread in Sweden as well. The purpose of this essay is to contribute to new knowledge about how this moss affects species diversity on Calluna heathlands in Sweden. The study includes both fieldwork and an analysis of scientific literature on the subject, and the question that is answered is if C. introflexus has an impact on species richness in the heather peat.
Erfarenheter från Olika Produktutvecklingsprocesser vid Utvecklingen av en Atmosfärisk Vattengenerator
This Master of Science thesis was completed at the Department of Machine Design at the Royal Instituteof Technology in Stockholm in collaboration with Lund Faculty of Engineering, Luleå University ofTechnology and Stanford University. At Stanford University a global product development project wasrealized as part of the course ME310. The project was initiated by the American company ImmerseGlobal whose vision was to develop a new type of Atmospheric Water Generators, a machine that absorbsthe moisture in the air and via a water system transforms it to pure drinking water. The project was partlyfinanced by the Product Innovation Engineering program, a Swedish research and development programfor increased innovation capability in organizations.In parallel with the global project in the ME310 course the product development process was studied inorder to compare it with a product development course at the Royal Institute of Technology, IPU. Thetwo courses are similar to each other in several aspects.
Vilometabolism hos barn och ungdomar med Cerebral Pares : En deskriptiv korrelationsstudie
Background: Cerebral Palsy is usually divided into three subgroups: ataxic, spastic and dyskinetic, where children and adolescents can, because of misestimation in nutrition and energy intake, suffer from weight problems.Aim: To compare calculations with equations with the individual's measured RMR in the subgroups, to see if any equation is more suitable. This could be used as a tool to calculate the resting metabolism at times when it is not possible to perform clinical measurements.Method: The RMR has been measured in 37 children and adolescents aged 3-15 years through indirect respiratory calorimetry. Those values have been compared with calculations from five equations. The results were then analyzed in order to find if any equation is better to apply for calculating resting metabolism for each subgroup.Results: The ataxic group was overestimated by 56.5% of the calculated values. WHO/FAO/UNU?s equation indicates a significantly strong correlation between the measured and calculated values (r=0.85, p<0.05).
ENERGI- OCH KOSTNADSEFFEKTIVAMATERIALVAL I VÄRMESYSTEM : En jämförelse av rörmaterial i vattenburna värmesystem
The thesis aims to compare differentpiping materials in heating systems interms of cost as well as to illustratethe impact of energy characteristics ofdifferent materials over its servicelife. The methods used for costcalculations regarding piping are alsoto be examined to highlight thedifferences between template basedcalculations and more carefully executedones. The work is delimited to discusspipes of steel, copper, plastics andcomposites. The aim is that the resultcan be compiled to illustrate the prosand cons of various materials whenevaluating investments.The main object of the survey is part ofa heating system in the office-block KVSommaren located in southern Stockholm.The configured piping system is designedwith the mentioned piping materials andis used to make up the data for flow andcost calculations. The differentmaterials are calculated in both aconventional manner with a supplementarycost for additional fittings and with amore accurate quantification of thecomponents.
Varför barn fortfarande vräks : En kvalitativ jämförande studie om socialtjänstens användande av disciplin i ärenden där barn riskerar att vräkas
The purpose of this study was to examine whether the degree of discipline in social services may be the reason why more children are evicted in one municipality in Stockholm, compared to another. Since our purpose was to study the degree of discipline in social services work with eviction cases where children are concerned, discipline is therefore a central part of the study. The interest in the subject arose from our prior understanding that social services approach to discipline may affect the extent of evictions. In order to answer the study?s question at issue, a qualitative interview was conducted to create an understanding of the discipline and a vignette study was conducted to compare the social workers assessments in two municipalities in Stockholm, Högstad and Lågby.
Automatic registration of dairy cows grazing behaviour on pasture
Information regarding cows grazing behaviour and time spent grazing can be of great interest to dairy farmers, since this information can indicate how well suited the pasture is to the cows. Feed intake at pasture is however challenging to measure. Automated systems for monitoring the behaviour of cows within dairy production have become increasingly important and relatively common. The aim of this study was to validate an activity measuring device (HOBO® G Logger Pendant Data Logger, USA), a triaxial accelerometer that registers the cow?s head positions during grazing, in order to see if cows? grazing behaviour on pasture could be distinguished from their non grazing behaviour.
Effekten på nedbrytningen av rötter vid tillförsel av ammonium sulfat i en granskog i sydvästra Sverige
Decomposition of organic matter is a critical process in the ecosystem, which involves many essential biotic and physical parts. Decomposition is therefore an important process both above and below ground. The rate of decomposition is dependent of many environmental factors for example: pH, moisture and supply of oxygen. The decomposition can therefore be affected by large scaled environmental influences, such as acidification and climatic changes. The root litter in the forest is in different ways affected by acidification, liming and manuering.