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51 Uppsatser om Decomposition - Sida 2 av 4

Från avfall till mylla : En litteraturstudie om komposteringsprocesser

Syftet med studien handlar om att försöka förstå vilken betydelse trädgårdsmiljön har för människor som bor i bostadsrättslägenheter - ur ett hälsomässigt, estetiskt och skötselmässigt perspektiv. Framför allt handlar studien om att ta reda på hur medlemmarna använder sin trädgård och om den har någon hälsomässig betydelse. Studien ska undersöka hur de ser på utformningen av trädgårdsmiljön i sitt bostadsområde, samt hur de skulle föredra att ha den. Den ska också undersöka vilken syn medlemmarna har på skötselfrågan och hur föreningen valt att lösa skötseln av trädgården. Studien bygger på fem kvalitativa intervjuer med representanter från bostadsrättsföreningar som fått besvara frågor om medlemmarnas syn på sina trädgårdsmiljöer..

Strötorvsanvändning i djurstallar : en litteraturgenomgång

Peat litter has been used in animal houses for a long time. Because of its good ability to absorb liquid and nutrients from the manure it can create a dry surface for animals and a valuable manure product. Through changes in agricultural practises the use of peat litter has diminished and is to a great extent replaced by straw, sawdust and cutter shavings although Sweden is rich in peat-findings. The aim of this work was to summarize the presented knowledge about the used of peat litter, techniques, advantages and disadvantages and to compare with other commonly used litter materials. Articles on peat litter have been searched for in magazines, databases and books at SLU library. Visits to peat industries, interviews with peat producers and with peat researchers contributed to the material. Peat is not a uniformly material.

Makroekonomiska variablers påverkan på Dow Jones och OMXS30

Syftet med studien är att undersöka makroekonomiska variablers effekt på Dow Jones och OMXS30, med hjälp av en lämplig ekonometrisk modell. Vidare är syftet att analysera möjligheten för börsprognostisering och analysera om denna möjlighet är lika stor för Dow Jones som för OMXS30. Detta kommer att ske genom att undersöka motsvarande variabler för respektive lands aktieindex. Variablerna arbetslöshet, ränta och oljepris visade sig inte ha någon signifikant påverkan på varken Dow Jones eller OMXS30. Det visade sig dock att aktieindexen reagerade på samma sätt, för respektive lands variabler..

????Att lösa reglertekniska problem med Modelica

Modelica is a multi-domain and equation-based modeling language. Modelica is based on object-oriented principles and non-causal modeling. The language is constructed to facilitate reuse and decompose models. The models and the modellibrary can modified to design a new nonlinear components.Object-oriented modeling is an excellent way to analyze and study large complex heterogeneous physical systems. The object-oriented modeling approach build on reusing and Decomposition of models and non-causal modeling.Modeling physical systems often leads to a DAE system with index 2 or 3.

Automatisk tesauruskonstruktion med latent semantisk indexering

The aim of this thesis is to examine how thesauri constructed with latent semantic indexing LSI are performing when used for query expansion. There is a well-known problem with synonymy in information retrieval and one solution to this problem is to use a thesaurus. In this thesis thesauri are created automatically to find statistically related words and not only synonyms. LSI is a method that uses singular value Decomposition SVD to reduce dimensions in a matrix and find latent relationships between words. We constructed nine thesauri and used them for query expansion in a Swedish database, GP_HDINF.

Implementation av webbsida för rekommendationssystem med användaruppbyggd databas

The goal of this project was to create a web-based, crowd-sourced, correlational database, that easily allowed users to submit objects and receive correlated objects as results. The webservice was created in the web development languages of HTML, CSS, PHP and Javscript, with MySQL to handle the database. Simultaneous development was kept in check with the aid of the source code management system GIT. Upon completion, the service contained several HTML-views, the ability to add and rate objects, a per-object dedicated page with information parsed from Wikipedia.org, and a view with objects ranked in accordance to the preferences specific to the current user. Roughly a month after the beginning of development, the website was publicly launched and promoted in order to collect data, and improvements were added to the website as needed.

Elevers kunskaper i årskurs 3 om höstlöv och nedbrytningen i naturen.

Denna undersökning handlar om elevers kunskaper och uppfattningar angående höstlöven och nedbrytning i naturen. Studien har gjorts på två skolor i årskurs 3. Skola A har profilen ?Natur och Miljö? och skola B är en större skola utan profil. Syftet med arbetet är dels att kartlägga elevers föreställningar om nedbrytning i naturen och dels att undersöka hur man kan arbeta med ämnet i skolan för att få en god lärandemiljö.

Lanczos potentialer i kosmologiska rumtider

We derive the equation linking the Weyl tensor with its Lanczos potential, called the Weyl-Lanczos equation, in 1+3 covariant formalism for perfect fluid Bianchi type I spacetime and find an explicit expression for a Lanczos potential of the Weyl tensor in these spacetimes. To achieve this, we first need to derive the covariant Decomposition of the Lanczos potential in this formalism. We also study an example by Novello and Velloso and derive their Lanczos potential in shear-free, irrotational perfect fluid spacetimes from a particular ansatz in 1+3 covariant formalism. The existence of the Lanczos potential is in some ways analogous to the vector potential in electromagnetic theory. Therefore, we also derive the electromagnetic potential equation in 1+3 covariant formalism for a general spacetime.

Odlingsstrategier på organogena jordar : en studie om beslutsfattande bland KRAV-anslutna lantbrukare

This study examines how farmers certified by KRAV face proposed regulations on organic soils put forward by KRAV economic association among others, and how they are affected economically. These soils are, from an environmental perspective, interesting as a target for production regulations as they cause greenhouse gas emissions through Decomposition of organic material when cultivated. The regulations advocate that organic soils should be grown with pasture where soil cultivation is only allowed every fith year which implies that possible adjustments of cultivation have to be made in order to fulfill the regualtions. Collection of data have been made through a questionnaire sent out to 574 farmers certified by KRAV. The answers have been analysed using a decision making model and statistical findings suggest that proportion of organic soils, type of production, economic conditions and farmers? goals and values have an influence on whether the regulations and potential cultivation adjustments have been considered or not.

Sol, jord och vatten. : Barns tankar om den ekologiska processen

Studies show that the interest and knowledge about science among teenagers is decreasing. They also reveal the difficulties to explain the ecological processes and that the ideas about the nature are collected from everyday life and early school years.The intention of this investigation was to find out more about children?s ideas and knowledge about the ecological processes and to compare these results with the curriculum.The method was a questionnaire and interviews with children in school year 1 ? 6. The aim of the studies was also to find out if any progress connected to age could be found, concerning understanding of the ecological processes.The results showed difficulties in achieving the predestined goals for biology and chemistry concerning ecology cycles and they differed a lot between the children. Often the learning process showed very little progress.

Ants and termites in small-scale plantain farms in Uganda : a comparison between agroforestry and non-agroforestry farms

This study was conducted in Kkingo district, west of Masaka, Uganda. It compared soil macrofauna abundance in non-agroforestry farms with that of agroforestry farms. The agroforestry farms had participated in the Vi Agroforestry´s program between 1995 and 2006, and continued on their own after 2006, when Vi Agroforestry left the area. The soil macrofauna is important for soil structure and processes that are contributing to soil organ-ic matter Decomposition and nutrient mineralization. They are also predators of potential pests.

Levande material. En utforskande exposé över vårt förhållande till kroppen som organisk materia

In this project the author made an attempt to, in a short film, visualizean experience of the organic materials that our bodies consist ofand what becomes of it when we die. The intention was to dissect thismatter, break it down to see it in a simpler form and to explore ourrelationship to it, being part of a constant exchange between organicmaterials and having so much power over the environment and otherliving animals. At the very start, the idea was to deal with the relationshipdifferent people have with their bodies. Later in the process, a decisionwas made that the product would be communicating the author?sown experiences of the body materials after studying it and trying torecreate fragments and feelings of them.

På väg mot den inre marknaden? - en studie om sammanlänkningar mellan börserna i det nya EU

Det primära syftet med uppsatsen är att studera relationerna mellan de nya och de etablerade börsmarknaderna i EU för att se om det ha skett någon förändring under perioden 1996-2005. Ett sekundärt syfte är att undersöka huruvida den finansiella integrationen inom unionen har blivit starkare under den studerade tidsperioden. I syfte att kunna besvara de frågor som vi är intresserade av använder vi oss av VAR-metoden. Med hjälp av "impulse response" beräknade vi hur snabbt en händelse sprider sig mellan de undersökta börsmarknaderna samt hur lång tid det tar innan dessa åter är i jämvikt. "Variance Decomposition" talar om för oss i vilken utsträckning de olika börsmarknaderna påverkar varandra.

International transmission of stock market movements - a Scandinavian focus -

Previous research has found an increased transmission of stock movements in Europe, partly caused by the establishment of institutions as the EU and the EMU. The purpose of this paper is to find the possible impact from the EU and the EMU concerning the evolution of international transmission of stock market movements, on four Scandinavian markets, Denmark, Finland, Norway and Sweden. The research is based on primary data, existing theories and earlier studies regarding international transmission of stock market movements. The examined method is a VAR (Vector autoregressive model) including a 10x1 vector of variables. Furthermore the tests considered are correlation, granger-causality, variance Decomposition and impulse response.

Marktillstånd och borbrist på åkermark planterad med gran i Västerbottens län :

This study was made on former agricultural areas that had been planted with spruce or pine, in the county of Västerbotten. The goal of the project was to investigate suspected deficiency of boron in these areas. Several objects have been reported for possible deficiency and some of these have the characteristic symptoms of boron-deficiency. The hypotheses are that 1) Boron deficiency is present at several of the investigated objects. 2) Planting of forest on cultivated postglacial sediments leads to a successive podzolisation with a decreasing content of organic matter in the mineral soil, due to Decomposition, and a decreasing pH in the soil, even on locations that have been added lime. To be able to confirm or reject the hypotheses a number of tests were performed.

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