Sök:

Sökresultat:

2508 Uppsatser om Master suppression techniques - Sida 39 av 168

Effekten av klimatförändringar påkontrollbehovet av åkerogräs

With a changing climate, we can expect higher temperatures and more precipitation in Sweden.As the temperature increases, new weed species are expected to migrate in from more southerlylatitudes, resulting in requests for new techniques for weed control. In addition, we might see agreater number of weed species and higher biomass production due to increased concentrationof CO2 in the atmosphere.Increased understanding of the biology of specific weed species will become more importantin future weed control. This will help to control the weeds more efficiently. Higher prices onpesticides and a public demand for reduced use of pesticides make growers more inclined to usemechanical weed control on a larger scale and to a greater extent prevent weed establishmentbefore sowing. A well-planned crop rotation is the most important preventive measure, whichmight also include delayed sowing, and dark harrowing and sowing.Research takes place on many levels within the weed area and several alternative methodsare being developed.

Att återställa en naturlig ordning : skogshistoria och restaureringsbränning i Långsidbergets naturreservat

During the late 1800s fire suppression became increasingly effective in northern Sweden which led to decreased areas of fire-disturbed woodland and successive changes in the structure of forests. In the long run this can pose a serious threat to fire-dependent and fire-favored species. Today some fire-prone forest reserves are burned as a nature conservation act. Often partial cuttings are made before burning, with somewhat different motives. The purpose of the study in Långsidberget nature reserve was to give a general picture of forest history and its affect on today?s forest condition, and to show how partial cuttings affect burning conditions and results. Långsidberget is located close to areas that were colonized during the Middle Ages.

Spela för nöje eller spela för kunskap? : Lärares uppfattningar av IT-baserade matematikspel och dess konsekvenser på elevers kunskapsutveckling

Sveriges Radio stores their data in large archives which makes it hard to retrieve specific information. The sheer size of the archives makes retrieving information about a specific event difficult and causes a big problem. To solve this problem a more consistent use of metadata is needed. This resulted in an investigation about metadata and keyword genera-tion.The appointed task was to automatically generate keywords from transcribed radio shows. This included an investigation of which systems and algorithms that can be used to generate keywords, based on previous works.

Re-design på uppdrag av Spotify : Framtagning av designförslag för ny visningsvy för internprogram baserat på kontextuella intervjuer

Spotify is a music service that offers on-demand streaming and is available in several countries worldwide. As the company and the interest for it grows, more and more parties are involved and those involved, including the record labels want to control and get an overview of their products. They want to be able to see, for example, when a product is available on Spotify and in which countries.Spotify is in May 2013 in process of developing a to be used by administrators on Spotify in order to meet the record labels with the information requested. The new software intends being used by administrators but also by the record labels so that they will be able to overview their products availability.We were asked by one of the developers to conduct user interviews and tests to result in a design proposal on how the display page of information about a product could be visualized more clearly so that it suits both record labels and employees at Spotify. The results of our contextual interviews were translated into a prototype with two display pages.

Maktdelning : och konstitutionellt rättighetsskydd

The topic of this master thesis in legal science is state law and constitutional law, or more specific judicalization, with the division of power and thus increased individual legal rights in various forms. Sweden has traditionally had a weak constitutional protection for the individual?s legal rights. The public power has been concentrated to the government and the courts have only played a marginal role. Since the implementation of the European convention of legal rights and with the ever-increasing importance of the legal system of the European Union, the Swedish legal system gone through changes of historical dimensions.This master thesis is based on the legal dogmatic method where laws, preparatory work, case law and doctrines have been systemized.

En anpassning till ett kyligare klimat? : en studie av orsaker till den förändrade synen på fornfynd i Riksantikvarieämbetets föreskrifter och allmänna råd avseende verkställigheten av 2 kap. 10?13 §§ lagen (1988:950) om kulturminnen m.m. år 2007

In the year 2007 the Swedish National Heritage Board released directions for how the contractarchaeology in Sweden should carry out their work. These directions stressed that a differentapproach to the archaeological finds should be used ? that would lead to a higher degree ofselection than before. The purpose of this essay is to find the reason why this change indirections occurred, and this is done by a study of the history of the rescue archaeology inSweden. The other purpose of this essay is to examine if the excavation strategies inarchaeological excavation reports from different times, correlates with the general guidingprinciples for the contract archaeology in Sweden of that time.There are several reasons why the change in directions occurred, but it seems as the mainreasons are practical.

Anaerob rening vid StoraEnso Skoghalls Bruk

An analysis of a specific application of anaerobic wastewater treatment at a pulp and board mill, Stora Enso Skoghall, was carried out. A literature study was done and effluent wastewater from CTMP pulp production was analyzed. The analysis consisted of a broad constituent analysis and an anaerobic treatment trial. Results from these test where used to calculate the treatment effectiveness and resulting energy potential at the mill.The literature study and constituent analysis showed that toxicity of the water to be treated, due to wood extractives and sulphur content, was of concern. Detoxification chemicals targeting these constituents where used in the anaerobic treatment trial.

Analog-to-Digital Converter Design for Non-Uniform Quantization

The thesis demonstrates a low-cost, low-bandwidth and low-resolution Analog-to- Digital Converter(ADC) in 0.35 um CMOS Process. A second-order Sigma-Delta modulator is used as the basis of the A/D Converter. A Semi-Uniform quantizer is used with the modulator to take advantage of input distributions that are dominated by smaller-amplitude signals e.g. Audio, Voice and Image-sensor signals. A Single-bit feedback topology is used with a multi-bit quantizer in the modulator.

Kunders betalningsvilja- från initialkostnad till drift- och underhållskostnad

Many interactive products constructed today is not produced towards a specific targetaudience and how they will interact with the product. This master's thesis follows the designprocess in the development of the Let's Walk webapplication. In the designprocess has users of the webapplikation been identified, prototypes developed and an interactive version has been evaluated. The Let's Walk webapplication is a fully working system used to administrate Let's Walk, an exercise competition between companies. Experts and users have been involved to evaluate the Let's walk high-fidelity webapplication prototype.

Digitizing the Parthenon using 3D Scanning : Managing Huge Datasets

Digitizing objects and environments from real world has become an important part of creating realistic computer graphics. Through the use of structured lighting and laser time-of-flight measurements the capturing of geometric models is now a common process. The result are visualizations where viewers gain new possibilities for both visual and intellectual experiences. This thesis presents the reconstruction of the Parthenon temple and its environment in Athens, Greece by using a 3D laser-scanning technique. In order to reconstruct a realistic model using 3D scanning techniques there are various phases in which the acquired datasets have to be processed.

Konstskolan

Abstract I have made a Website called ?Art school? for Liljevalchs art Gallery, Culture administration in Stockholm and Culture school in Stockholm. It is with scholarship from these that this Website has been possible. The work whit the ?Art school? started in the autumn of 2005 and ended in May 2006 on distance from Stockholm towards Blekinge technology school in Karlshamn.

Ergonomisk utvärdering och förbättring av monteringsstation

The purpose of this study was to examine and evaluate an assembly station at Kalmar Industries in respect to ergonomics. The study was to result in an improved assembly station with lower risk of work- related injuries. It was the study group?s expectation that the measures taken at the assembly station can function as guidance and an inspiration for other ergonomic improvements at the company. Several goals related to the purpose were established as guidance for the study.The mechanic?s work situation was mapped through a series of methods.

Naturen-Minnen från en kvällsvandring

Naturen är ett undersökande arbete i att uttrycka och materialisera en stämning baserat på minnen från en kvällsvandring. Jag gestaltar upplevelsen och materialiserar den i textil. Genom att undersöka möten mellan olika textila tekniker vill jag skapa en kollektion som ger en förnimmelse av min naturupplevelse. Text ur Caroline Ringskog Ferrada-Nolis bok Naturen har varit utgångspunkt vid uppbyggnaden av kollektionen. Resultatet är en dynamisk textilkollektion för hemmiljö som innehåller digitaltryck, ausbrenner jacquardväv och en stickad struktur.Nature is an exploratory work on expressing and materializing a mood based on the memories of a night walk.

Myten om nudlarna : Hur ser bilden av studenten ut?

This study is based on interviews with six students from Stockholm that have shared their feelings/opinions about how they experience their identity as a student. The aim of this master?s thesis is to examine how the identity of students is constructed but also how the post modern society affects the life that the students are living. With a higher demand on education and responsibility of making the right decisions, the student?s main concern is not only her studies, but also the goal to succeed in her life.

Handelsbranschers användning av Augmented reality : En studie om dess möjligheter, utveckling och användning

Augmented reality is an interesting technology which has increased in popularity the last couple of years. Even though we see more and more of this technology the use of it doesn?t match up to its true potential. This paper aims to investigate the possibilities of this technology and illustrate how companies can use it in their business to reach out to customers in a new and exciting way. The study consists of three parts.

<- Föregående sida 39 Nästa sida ->