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485 Uppsatser om Channel estimation - Sida 25 av 33
En ny modell för att stärka kommunikation och samverkan mellan universitet och näringsliv
As a result of today`s competitive situation, the demand on the rapid development of research has increased. Both universities and companies are realizing the importance of a functioning and well-developed cooperation. A close collaboration and communication between universities and the business community has in many studies been shown to be very important for business development and knowledge transfer. The purose was to examine how communication and collaboration between universities and industry can be developed and strenghthen on the basis of innovative thinking. In order to initially identify the perceived problems the authors studied how communication and cooperation manifests itslelf today between the two parties, what does not work and how the existing tools for communication and collaboration look like today.
Fastighetsvärdering : Det tillförlitliga marknadsvärdet
BackgroundAccording to the Swedish Statistics Central Office (SCB) there were 2 064 000 detached houses in Sweden in 2009. The same year Nordea Bank released a report which described an increased interest in private finances among 2,4 million Swedes. Within the area of private finances lies that which concerns real estate. We argue that a house (detached house) is one of the most financially valuable assets a person will ever own and thus the increased interest in private finance is justified.In regard to this, the financial valuation of the property becomes an issue. When discussed, people mostly refer to the market value, which is the estimated value of the property on the open market.
Vilken kommunikation smörjer börsmaskineriet: En kvalitativ studie av börsanalytikers syn på informationsinsamling och trovärdighet
Stock analysts have through the analyses they write a large impact on the expectations on the market and the direction of investors investments. This creates undesired fluctuations on the market that raises the level of uncertainty. The way that the analysts satisfy their need for information is connected to how their final analysis will be shaped. There is a large knowledge gap concerning the way that the analysts work and this gives unsatisfactory ways of communication. This thesis is set out to create a greater understanding of how optimal communication towards this target group should be brought out.
Förstudie till våtmark i Rimbo : Design för optimal hydrologi och kväverening
The euthropthication of the Baltic Sea is a threat that is beginning to be taken seriously by the governments concerned. In Sweden, regulations concerning the allowed nitrogen (N) concentration in the effluent water from wastewater treatment plants are being tightened up. The Rimbo wastewater treatment plant has been imposed to reduce the annual mean concentration of total N in the effluent water to levels below 15 mg l-1. A more and more common way to reduce the nitrogen level in wastewater is to let the water pass through a wetland. This study investigates the possibility to build this kind of wetland at the outlet of the Rimbo wastewater treatment plant.A prestudy of the topography, soil characteristics and groundwater flow indicates that the land area in question is well suited for the construction of a wetland.
Böndernas vägar till Bryssel, många och långa men värda att gå. En studie om svenska jordbruksintressens möjligheter att påverka den gemensamma jordbrukspolitiken
In this essay, I investigate Swedish possibilities to influence the Common Agricultural Policy of the European Union (CAP). After having summarized my findings, I try to explain the structure of influence by using Multi-level governance theory.Ten years have passed since Sweden joined the Union, and many changes have followed in the agricultural sector. By investigating the small country of Sweden's possibilities to influence CAP, I hope to be able to get a notion of the possibilities to influence the EU in general. The essay examines four possible paths for agricultural interests to influence the policy process in Brussels:* Through elected representatives of Sweden in the European Parliament, the Council of Ministers and in the Swedish Parliament* Through subnational institutions, such as the local authorities and regional representatives.* Through the Swedish Agricultural Office* Through the Swedish pressure group within the agricultural area, LRFThese four groups all have very different channels to the policy process on agricultural issues. The differences are mostly in terms of decisive power or advisory power and institutional contacts or lobby contacts.
Kaliumgödsling på torvmark - effekt på tillväxten hos planterade granar (Picea abies)
Peat lands are a great potential resource for increased forest growth in Sweden, there are approximately 6.5 million hectares of peat lands, whereof around 70% produce less wood than one m3sk/ha and year and are therefore classed as forest waste land. There are over 200 000 hectares of peat land that is already drained and wooded, and that may be suitable for fertilization. Forest production on peat soils usually requires drainage and fertilization. Dewatering requires ditching the area, so that the roots can have access to oxygen. Nitrogen is often abundant in the peat but other nutrients; especially potassium is in short supply. The purpose of this work was to examine the effects of potassium fertilization on the growth of spruces that were planted on drained peat land and how different amount of fertilizers affects the growth. Potassium deficiency is strongly growth inhibiting, since potassium is important for substance transport in the tree. Potassium is also important for the carbohydrate formation, and because increasing the sugar content of the cells constitutes a lower freezing temperature does potassium availability in the soil play a major role in the winter resistance of many species. Potassium is not found in any organic compounds in the tree, but is present in cell and tissue fluids. A fertilization trial was started in 1978 in Siljansfors Experimental Forest. The plots in the experiment were fertilized with different amounts of potassium and one plot was left without fertilization. All plots that were fertilized with potassium grew considerably better than the unfertilized plot. The difference in production between the unfertilized plot and the plot that received the most potassium was 7.2 m3sk/ha and year. The unfertilized plot can still be classified as waste land. The theoretical production capacity was estimated using a Swedish system for site quality estimation of wetlands after ditching (dikningsbonitering). The plot with most potassium produced after fertilizationaproximately in level with theoretical estimations. Key words: Peat land, Fertilization, Ditching, Growth, site quality..
PR-konsulter och bloggare; en win-win situation? : En studie om PR-konsulters förändrade arbetssätt i och med modebloggarnas framväxt
Abstract Title: PR consultants and bloggers; a win-win situation? - A study of PR consultants? new adaptations in the labour market due to the emergence of fashion bloggers. Authors: Cecilia Girell, Sandra Kjellstro?m Tutor: Ylva Ekstro?mPurpose: With the expansion of the Internet, fashion bloggers have gotten more power. A few companies have understood this powerful and reasonable cheap marketing channel. Despite this, most companies still feel powerless, but what has happened to the work of PR consultants in this constant changing media environment? The ones whos purpose is to act as intermediaries between companies and various media channels.
Ingen Lag - Straff? Straffansvar och befogenheter för svensk militär personal i internationella insatser ur ett rättstillämparperspektiv.
INGEN LAG ? STRAFF? ABSTRACTThe thesis deals with a gap in the Swedish legislation concerning the criminal responsibility under which military personnel act in international peace operations. According to international treaties called Status of Forces Agreements, military personnel operating abroad within the territory of other states are exempted from the criminal law of the host states. In return, their home states apply its national criminal law upon the personnel instead. Thus, Swedish criminal law is applied in relation to actions taken by Swedish military forces in international operations.
Kommunikation mellan företag - förutsättningar för bruket av sociala medier i en företag-till-företagskontext
The study examines how social media can be used in a business-to-business context. To understand the communication conditions, factors has been identified that affects the choice of communication channels for different types of information transferred between parts. Furthermore, the study investigates the underlying reasons for why certain communication channels are chosen before others, in different situations. The study results are based on qualitative semi-structured interviews with employees in a small engineering consulting company. The investigation has focused on employee communication and choice of communication tools primarily in relation to the business relationship.
Produktutveckling av koncept för isbanesystem
Today most ice rinks in Sweden use secondary refrigeration systems with a solution of calcium chloride and water as secondary refrigerant. Due to the large amount of energy such a system uses more efficient systems would be desired.An earlier study concluded in the possibilities of using carbon dioxide as secondary refrigerant with copper tubes as the loops in the ice rink. Since then 3 ice rink refrigeration systems has been built with carbon dioxide in copper tubes. Excluding the ones being direct involved in those projects there is still very little knowledge about how these system works. This study has been made primarily with the aim of adding to the knowledge concerning availability and cost and secondary to look at possibilities for improvement.A comparison between systems with carbon dioxide, calcium chloride respective ammonium solved in water has been made by using Decision Matrix.
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.
Kommunfullmäktigeledamöters sociala representation -en fallstudie i tre svenska kommuner av kön, ålder och etnicitet
The purpose of the thesis has been to explore the use of hedge fund styles when constructing portfolios of hedge funds (i.e. funds of hedge funds). The central question is if the use of hedge fund styles can significantly explain and improve risk adjusted returns (characterized by Sharpe ratios). The study has been done in collaboration with Optimized Portfolio Management AB who desire further knowledge and evaluation of hedge fund styles for their fund of hedge funds.To be able to create successful ex ante portfolios we have explored various prediction models for both risk and return. Our findings indicate that return prediction is problematic using simple models such as regression since the risk exposure of the indices appear to change significantly over time.
Tillämpning av kNN-Sverige i Södra Skogs verksamhet : behovsinventering, databearbetning och förberedelse för praktisk implementering
The digital map product kNN-Sweden contains nationwide data of the country?s forest land. The estimated forest variables are mean age, mean tree height, volume per tree species and total volume. Today Södra Skog?s assessments of timber potentials are mainly based on experience rate and subjective assumptions.
Är kolrika jordar en källa till fosforläckage? : en sammanställning av data från 130 åkerjordar
Phosphorus (P) is an essential nutrient but a surplus could lead to eutrophication. Furthermore,
the minerals used to produce the mineral phosphate is a non renewable resource.
There are in other words several reasons to reduce the leakage of P and the agriculture is one important area to attend. The aim of this work has been to investigate if carbon-rich arable soils content contain more P than arable soils with low carbon content. Moreover it has been calculated if the carbon-rich soils could pose a risk of P leakage by comparing their delivery of P with the plant uptake. The work has consisted of compiling the results from former gathered and analysed soil samples of 130 Swedish arable soils.
The fractions of P considered are water soluble P (Pw), ammonium lactate-extractable P (P-AL), hydrochloric acid-soluble P (P-HCl), organic ammonium lactate-extractable P (Porg-AL) and inorganic ammonium lactate-extractable P (Porg-HCl).
Annonsering utanpå tunnelbanevagnar : en studie om effektiviteten i pilotprojektet, Stockholm våren 2005
This thesis explores the effect of using a new media in the marketing mix. SL, in cooperation with Clear Channel, has covered the outside of an entire carriage, 46,5 meters long, in an underground train with an advertisement for a company. This new form of advertising has taken place in the Stockholm Underground system during spring 2005. The five companies participating in this project are MTV, the Aftonbladet/Sportsbladet, Eniro 118 118 SMS, Heinz and the Gallerian.An empirical study has been carried through to survey the motive for companies to market themselves, their brand and product/service, by using the outside of a carriage on an under-ground train as a gigantic, mobile bill¬board. The study also investigates the commuters? attitude regarding this form of advertising.