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1466 Uppsatser om Source separation - Sida 48 av 98
Design of a Direct-conversion Radio Receiver Front-end in CMOS Technology
In this Master's thesis, a direct-conversion receiver front-end has been designed in a 0.18um CMOS technology. Direct-conversion receivers (DCR) have obvious advantages over the heterodyne counterpart. Since the intermediate frequency (IF) is zero, the problem of image is circumvented. As a result, no front-end image reject filter is required and the channel selection requires only a low-pass filter, which makes it easy to integrate directly on chip. However, the DCR also suffers from several drawbacks such as extreme sensitivity to DC offsets, 1/f noise, local oscillator (LO) leakage/radiation, front-end nonlinearity and I/Q mismatch.
"Min sociala anknytning" : -Tolv tjejer om relationen till mobiltelefonen
AbstractTitle: ?My social extension? ? Twelve girls on the relationship with the mobile phone (?Min socialaanknytning? ? Tolv tjejer om relationen till mobiltelefonen)Number of pages: 42 (43 including enclosure)Author: Mattias KöhlmarkTutor: Göran SvenssonCourse: Media and Communication Studies DPeriod: Spring semester 2006University: Division of Media and Communication, Department of Information Science,Uppsala University.Purpose/Aim: To investigate the emotional aspect of mobile phones and the source of thoseemotions.Material/Method: The data presented stems from three unstructured focus groups with participantsat the age of 16-19 years.Main results: The key findings largely supports Vincents theories that the emotional languageguided towards mobile phones comes from the friends it allows us connect with. Also emancipationcan be seen as a driving force behind these emotions.Keywords: mobile phone, mobility, absent present others, emancipation, cell phone, emotion,emotional language,.
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.
Wickrpedia : Integrering av sociala tjänster
The web has evolved much through the years. From being a place where author and reader were clearly distinguished, it now invites everyone to take part in the development of both content and technology. Social services are central in what is called Web 2.0. Wikis, blogs and folksonomies are all examples of how the users and their communities are key to the development of services. Collaborative writing, tags and API:s are central.
Barndomsdramat : Barndomsdiskurser och existentiella frågor i TV-dramatik för barn
Mitt syfte är att undersöka TV som barnkulturellt medium; var det befinner sig på det barnkulturella fältet, vilka emotionella responser det förmår väcka hos sin publik och hur både diskurser om barn och barndom och existentiella frågor formuleras i TV-dramatik för barn. Jag har analyserat fem TV-serier (Vi på Saltkråkan (1964), Ebba och Didrik (1990), Barnens detektivbyrå (1991), Du måste förstå att jag älskar Fantomen (1981) samt Rädda Joppe ? död eller levande (1985)) med fokus på just barndomsdiskurser och existentiella frågor. Mina teoretiska utgångspunkter har varit flera då jag försökt hitta en tvärvetenskaplig ingång till mitt ämne. Teorier om kultur och populärkultur, kultursociologisk teori och diskursteori är utgångspunkter, som jag kombinerat med mer specifika teorier om TV, barns TV-tittande och receptionsteori.
Ytbehandling baserad på hampolja
The varieties of paint are today very big, but many of the more popular paints are less than environmental friendly. The uses of fossilized fuel in paints are common because these paints dry fast and are color true. It would be beneficial for the environment if more renewable source were used to produce paint. Linseed oil is an old base for oil paints. It is renewable and easily procured.
The impact from pre-M&A resource allocation on the post-M&A performance
Background: When firms grow through acquisitions it is commonly debated whether the two entities ought to be better off as standalone companies rather than as a merged company. This thesis aims at discussing this issue of M&As advantages and disadvantages in terms of source of synergies from the perspective of resource allocation. Purpose: The purpose of this thesis is to describe and analyze to what extent pre-M&A differences (against similarities) in resource allocation and corporate culture between the acquiring and target firm have an impact on the post-M&A performance. Theoretical framework: Efficient market hypothesis, resource based view, strategic fit. Methodology: A longitudinal study is conducted on the EU market during 1992 to 2002 based on balance sheet and income statement data.
Private Equity - En kvalitativ studie om hur bolagsstyrning skapar värde i portföljbolag
Purpose: To examine the governance mechanisms and the competence PE-firms adds to theirholding companies through an active ownership in order to create growth.Methodology: A qualitative study with interviews as its main source of data.Theoretical perspectives: Corporate governance and relevant theories within that subjectsuch as agent theory, board of directors and management. Previous research within the subjectwill also be presented.Empirical foundation: The empirical foundation consists of three conducted interviews anddata collected from the chosen PE-firms as well as six different holding companies.Conclusions: The governance mechanisms used in the PE-firms we have chosen are stronglyrelated to both theories within corporate governance as well as previous research on thesubject. The governance mechanisms being used are an explicit owners agenda and strategy, athorough acquisition process, usage of external competence, active ownership through theboard of directors and the insertion of incentive systems..
Hur lärare får elever att tänka utanför "boxen" vid skapandet av nya affärsidéer : En intervjustudie av lärare om undervisning och elevers kreativitet vid generering av affärsidéer inom konceptet Ung Företagsamhet
The aim of this study has been to understand how teachers make pupils come up with new business ideas. This is relevant as the schools in Sweden has to have entrepreneurial teaching in their education. To get an understanding of how teachers teach the pupils how to think differently so that new business ideas can evolve the study is based on interviews with five successful teachers. The teachers have all had pupils that during one year have had their own almost real companies that they have to manage. They start with inventing a new business idea and then they produce the product or service they decided to sell.
En konkurrensrättslig analys av ?reverse settlements? i läkemedelsbranschen
The aim of this study was to understand how evaluations are implemented and used in procured nursing homes for elderly. Our methodological approach consisted of a single-case study research. The case in this study was Växjö municipality. Three procured nursing homes for elderly were chosen in the municipality as examples of implementation and use of evaluation. The method for retrieving empirical data and the analyzing of it was based on triangulation.
"ESS avgörs i Bryssel": Nätverk söker förankring i institutionell beslutsstruktur
This paper aims at describing and explaining the bi-and multilateral negotiations that are, and have been, taking place between Sweden's chief negotiator Allan Larsson and European countries, and within the EU institutions in Brussels, in order to seek support for the Swedish offer to host the European Spallation Source, ESS. It applies a case study method using political science theories ? governance and government ? and to a large extent information from the involved actors in the policy process. The paper also presents a constructive position, in showing how the negotiations on ESS can turn into a process leading to a decision on the construction of this research facility. ESS is negotiated in networks on bi- and multilateral levels consisting of European research representatives and financiers.
BARNS BEHOV AV URSPRUNGSFAMILJEN I CENTRUM - En kritiskt granskande studie av hur barn och unga framst?lls inom arbetss?ttet Barns behov i centrum (BBIC)
Syftet med studien var att synligg?ra hur barn och unga framst?lls i relation till f?r?ldrar och familj i BBIC grundbok, genom att kritiskt granska materialet med hj?lp av WPR. Empirin bestod av handboken BBIC grundbok (Socialstyrelsen 2023), ett dokument med samlade riktlinjer f?r arbetss?ttet BBIC som v?gleder barnav?rdsutredningar inom socialtj?nsten i Sveriges samtliga kommuner. Studien som ?r en dokumentanalys pr?glades av en socialkonstruktionistisk f?rst?else och empirin bearbetades med teoretiska begrepp fr?n WPR tillsammans med teoretiska begrepp fr?n barndomsstudier, kritiska barndomsstudier och
queerteori.
Förekomst av sex- och samlevnadsundervisning på gymnasienivå - ungdomars kunskaper och attityder angående sexuellt överförbara sjukdomar och kondomanvändning ? en tvärsnittsstudie
Sexually transmitted diseases among youths is a growing problem. Generally, the knowledge about sexually transmitted diseases is relatively good, however, the risktaking among youths is great. The schools education regarding sex is often insufficient. The foundation for avoiding STD is knowledge. However, knowledge does not solve the attitude problem regarding the use of condoms.
Strategisk styrning av intranät: Centrala val att uppmärksamma
Having an intranet as a source for information and communication is common in most contemporary organizations. Research shows that the intranet in itself does not have an explicit area of use, and that leaves every organization to make decisions of the associated functionality on their own. At the same time the strategic opportunities that the intranet could bring get lost somewhere along the way. This means that problems regarding the strategic use of an intranet becomes apparent and may result in loss of investments for the organization. The purpose of this thesis is to identify central choices that can be used as points of discussion and help organizations to work with their intranets on a more strategic level.
Postkolonialistisk bildanalys av Hem- och konsumentkunskapsböcker
The Swedish education system reflects the multicultural society in Sweden, therefore there is a need of school textbooks that pupils can identify themselves with to create meaning and value in their learning. According to the Swedish Education Administrations (Skolverkets) report (2006) and Selander (2003, s. 198) the school textbooks are the main source of education in class. There has been an implicit message in the older textbooks that is associated with the belief that non-Europeans are "seen" as victims, and that Europeans are privileged with a "good life".Many school texbooks has been analyzed from different points of perspectives, however, analysis from a postcolonial perspective on home economics books has practically been nonexistent.Analysis in this study are focused on how non-western people are been portrayed in six different textbooks in the subject to conclude if the colonial discourse is still maintained and reproduced in the school. To answer the question of formulation an image analysis is made of the six, previiously mentioned, textbooks.