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779 Uppsatser om Recency-Frequency-Monetary - Sida 45 av 52

The importance of shade for dairy cattle in Sweden.

Today, there are no regulations saying that cows must have access to some kind of shelter at pasture during the summer. In more tropical countries, it is well-known that dairy cows might suffer from heat stress when exposed to sun and high temperatures. The well-being of the cows is thereby reduced and the production may also decrease. In Sweden, no research has been done in the area and therefore it is now a clear need of improved knowledge.The purpose of this study was to investigate the importance of shade for dairy cows in Sweden. The behaviour of 30 cows was examined to see any differences between cows with access to shade and cows without access to shade.

Investigation of the reward cycle associated with play behaviour in lambs

The aim of this study was to investigate if behaviour, ear positions and cortisol in lamb which were given access to play followed the different phases of the reward cycle of anticipation, consumption and relaxation. The study was done on 8 Dorset and 12 Dorset x Fine Wool uncastrated male lambs with an average age of 10 weeks. The lambs were housed pairwise in litter pens (2 x 3 m). Pairs of lambs were taken to a play arena (5.9 x 5.5 m) three times a week during five weeks (first week for learning). They were then first kept in a holding pen where they could look into the play arena for 5 minutes and thereafter released for 20 minutes in the play arena which had a ball, two chains and a tunnel.

Effektiva återkopplingsverktyg för elanvändning : En studie som syftar till att identifiera utvecklingsmöjligheter för att uppnå ett mer hållbart energisystem år 2030

Feedback tools support electricity users within the Swedish residential sector to increase their knowledge of electricity and the electricity market as well as to become more aware of their electricity consumption, which in turn encourages a reduction and an increased flexibility of electricity use. The primary aim of this study is to identify and analyse how existing feedback tools can be improved, to ensure that they contribute efficiently to the achievement of the EU objectives congruent with a more sustainable energy system in 2030, emphasizing: greenhouse gas reduction, increased energy efficiency and an increased share of renewable energy. In order to reach the primary aim of this study, existing feedback tools have been identified and mapped and interviews with feedback tools providers have been conducted. The study is limited to three research areas: the practical functions of feedback tools, available technology and the use of feedback tools.The use of more efficient feedback tools will provide an increased success rate for energy management, which includes both behavioural changes and energy efficiency. According to the results from the interviews conducted for this study, an increased use and user frequency is important to utilise the energy management potential.

Genotype by environment interactions of claw health in Swedish dairy cattle in tie stalls and loose-housing

Claw diseases are common diseases in modern dairy production. They are painful for the cow and costly for the producer. Differences in the prevalence of claw disease depending on housing system have previously been observed. This raises the question if there are genotype by environment (GxE) interactions for claw diseases in different housing systems. To investigate this claw trimming records for Swedish Red dairy cattle (SR) and Swedish Holstein cows (SH) were retrieved from the Swedish Dairy Association.

Risken för spridning av röta vid förröjning i granskog i södra Sverige :

Root rot causes large economical losses for Swedish forestry. The spread of root rot can partly be prevented by treating the spruce stumps in thinnings. Late pre-commercial thinning (PCT) is one of the forestry measures where stump treatment is not used. Late PCT can be defined as: The act of cleaning the stand with the aim of improving accessibility and sight within the stand, and so to increase the mean stem´s volume during the first conventional thinning. The aim of this study was to examine how late PCT is performed, its spatial extent and if it aids the spreading of root rot. The study was limited to encompass late PCT before first conventional thinnings in spruce stands in southern Sweden. Samples of spruce stumps were taken from four stands where late PTC had been carried out.

Metodik för utmattningsberäkning av svets i vibrationsmiljö

In this work, a method was developed and evaluated for calculating the life of welds under the influence of fatigue loads from a vibration environment. Typically, a shaker table is used for testing a component against vibration loads. The shaker table creates a vibration environment that is defined in the frequency domain by a power spectrum.Similarly, a virtual vibration table can be used to calculate the same type of load environment, which can then be used to calculate the expected lifetime. The benefit of this method is that it can be used in design, as well as in simulation of tests before physical verification tests are carried out.Today there are methods for calculating fatigue life of non-welded base material, but since many components contain welded joints, there is a need to apply this method to those types as well. To achieve this, the thesis combines two different areas, which together provide a method for fatigue assessment of welds using a virtual shaker table.The methodology is carried out by modeling the component, and its welded joints, in a finite element program.

Lost in translation : Bibliometrisk domänanalys av translation studies

The aim of this thesis is to analyze the academic discipline translation studies; the analysis centers upon bibliometric aspects, and is carried out chiefly by means of quantitative methods, enabled by the databases Web of Science and Scopus as well as by the corpus-linguistic software Wordsmith; however, this quantitative focus is complemented by auxiliary qualitative means of investigation, i.e. a discourse-analytically oriented study of a corpus of domain-endemic reviews.A number of core journals are analyzed in order to show what and whom are cited in translation studies, and, furthermore, what adjacent domains hold sway over it; attention is also given to influential authors, regions and languages operating within the domain. It is shown that the domain under scrutiny is quite differentiated, even fragmentary; the term pluricentric is used to describe this tendency towards sprawling. No superior authors (in terms of publication frequency) emerge, which arouses the suspicion that the domain may be conditioned by a hierarchical divide between journals and monographs. Furthermore, it is clear that translation studies is a eurocentric domain: European languages dominate.

Ordfrekvens och ordformer : Analys av samtal mellan barn i åldersgrupperna 5-8 år respektive 9-12 år

Språket är i ständig förändring vilket innebär att språkligt material med tiden föråldras och blir inaktuellt. Vid talaudiometrisk testning av barn är det viktigt att testmaterialet innefattar ord som är välkända för barn eftersom förståelsen för materialet kan inverka på mätresultatet. Det talaudiometriska test som idag används för barn bygger på ordmaterial som ursprungligen insamlats under 1930-talet. Föreliggande studie är en del av ett större projekt och inleder arbetet med att utarbeta ett nytt talaudiometriskt material för barn.Syftet med föreliggande studie var att beräkna och jämföra ordfrekvens och antal ordformer utifrån inspelade samtal mellan de deltagande barnen i åldersgrupperna 5-8 år (Grupp 1) respektive 9-12 år (Grupp 2). Totalt 79 barn mellan 5 och 12 år deltog i studien.

Fusionen mellan tre mediaorganisationer : Ur ett organisationskulturellt och förändringskommunikativt perspektiv

Media has a big actuating power over the public opinion. The image of reality that media choose to reproduce will affect the recipient view of reality. The case about Thomas Quick and its associated news coverage has been used as an example to illustrate the problematization regarding media imag-es and media framing attempt. The purpose of this essay was to illuminate how daily and evening newspapers works with various framing methods.The theoretical framework for this essay will discuss the media framing theory and its ramification attribute framing theory. This laid the foundation for the research question.

Syntaktisk komplexitet hos ungdomar och vuxna med läs- och skrivsvårigheter

The purpose of this thesis is to investigate if there are any differences regarding syntactic complexity in written language between persons with (phonologically based) reading and writing difficulties and a control group. Earlier research has pointed to such a difference, indicating that texts written by subjects with reading and writing difficulties display a lower grade of syntactic complexity than text written by control groups.Two texts each from 48 subjects (24 from each category) were collected. The subjects were divided in two age groups, one consisting of 15-year-olds and the other of university students (adults in various ages). The subjects were selected through a word decoding test and a spelling test, where the lowest performing formed the group of reading and writing difficulties and the highest performing formed the control groups. All subjects had Swedish as their mother tongue.The syntactic aspects studied were number of words per syntactic sentence (Sw.

Uppbyggnad och reglering av en pumpstation till ett injektionssystem

I was assigned to the thesis as part of a project GMA AB (Ground Machinery Applications AB) is running. The project aims to develop a new method for injection of drilled holes in rock walls. Currently, the injections usually involve cement but the basic idea of the project is to replace cement with a supplement called Silica sol.Silica sol is known as a gelling liquid. The gel time is controlled by a mixing of saline. Depending on the amount saline that gets mixed in, the gel time varies.

Syntaxbaserad författarigenkänning

The writing style of a particular author can be divided into many subfeatures, for example use of words, language and syntax. Focusing on the latter, this study aims to show how well syntactic information alone can attribute the correct author to a document. Syntactic information is defined as overlapping syntactic subtrees of height one (1) for all sentences of all included documents. The performance is compared to that of the previously very successful method of comparing stop word frequencies. These are words normally excluded from search engine queries, because they are present in all sorts of texts regardless of topic.

Hur påverkar utdelningar företagsvärde? : en kvantitativ studie av utdelningsfrekvenser på Nasdaq och New York Stock Exchange

Utdelningar är ett relativt välkänt och utforskat område men ingen accepterad förklaring till dess påverkan på företagsvärde finns och tidigare studier tyder på att forskare till stor del har kommit fram till olika resultat. Men forskning kring utdelningsfrekvensernas betydelse och dess påverkan på företagsvärde är begränsad vilket leder oss in på ett område som är relativt outforskat. Syftet med detta arbete är att kvantitativt undersöka om utdelningsfrekvenserna påverkar ett företagsvärde.Undersökningen baseras på de två amerikanska listorna Nasdaq och New York StockExchange. För att göra studien så aktuell som möjligt grundar sig undersökningen på observationer mellan 2009 och 2013 och innehåller totalt 11 144 observationer. Bolag på den amerikanska marknaden använder sig av främst fyra utdelningsfrekenser: årliga,halvårsvis, kvartalsvis eller månadsvis.

Val av tidpunkt för markberedning vid naturlig föryngring under skärm av Pinus sylvestris i Svealand : Timing of scarification when using natural regeneration in seed tree stands of Pinus sylvestris in Central Sweden

This thesis is built on a field study that was carried out in two seed-tree stands near by Götbrunna in Uppland, Sweden. The aim was to examine if scarification carried out in spring time could generate a more dense seedling establishment when using natural generation, than scarification carried out in autumn. It was also investigated whether there were differences in mortality the first season between the two plot-types. Plots were established block-wise with 50 blocks (pairs) on each site. The spring scarification was made with a hoe during 22-23 of April.

Radiolänk med GNU Radio

At the Department of Technology and Built environment at the University of Gävle there was an interest to study GNU Radio, which is an "open source radio project. The project is based on that most of the radio signal processing is made in an ordinary PC. The idea behind this degree project was that in a laptop there are several radio transmitters/receivers that takes space, generates heat and transmit in varied frequency band etcetera. All these radio transmitters/receivers could be replaced with a Software Defined Radio system. It means that one common, general radio hardware is used to different communications such as: WLAN, Bluetooth, GPRS, 3G etcetera. The waveform is generated in the software, which makes the system very flexible.

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