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1731 Uppsatser om Lower Ninth Ward - Sida 50 av 116
Utvärdering av en beslutsåterkopplad kanalestimator för tredje generationens mobiltelefonisystem
This Masters thesis work describes a comparison between two different methods
for estimation of the down channel (base station to mobile subscriber) in
Wide-band Code Division Multiple Access (WCDMA).
The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is
a conventional method that bases the estimates on data that is known to both
sender and receiver, so called pilots. The second method, Decision Directed
Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data
for estimation.
Simulations show that DDCE, in comparison to OFCE, does not attain an
improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER). An
improvement is only seen when the BER becomes much lower than what is common in
real situations.
In conclusion DDCE is complicated, involves many mathematical operations and
gives insignificant improvement of SNR when BER takes common values. It is
legitimate to question if it is possible to use the method in a real mobile
phone system..
Ho?gla?sning i skolan : En studie om hur tre la?gstadiela?rare arbetar med ho?gla?sning ? fo?resta?llningar och motiv
The aim of the study was to investigate how teachers work with reading aloud. The aim also included examining their ideas about and motives for reading aloud. The study consisted of interviews with three teachers at the lower level of compulsory school along with observation of one of these teachers during a reading aloud session. The interviewed teachers work at three different schools in the same geographical area.The analytical tools chosen for the study were the theories of Rosenblatt. The three basic skills that Damber et al.
Andraspråksstudenters konnektivbruk : En kartläggning av vanliga fel i konnektivbruket hos studenter med svenska som andraspråk
AbstractThe purpose of this paper is to investigate to what extent LS ? a standard screening test for dyslexia ?is also relevant for the purpose of finding second language students with dyslexia. Starting with an overview of recent studies in the field, I have analyzed texts from parts of the chosen material. After a brief presentation of the test, I have presented it from a second language point of view. Furthermore, I have analyzed the way in which the test measures phonological awareness, lexical accessibility and correctness in language.
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.
Impulsmätning medelst gradvis deflektion av alla sprayer från högtrycks common rail spridare
A method for measuring the total impulse from a multi hole diesel injector, introduced inprevious thesis work, ?Development of a method and a device for measuring the momentumrate of fuel sprays?, by Mikael Lindström, has been further developed and tested. The conceptis to simultaneously deflect all sprays from a multi hole diesel injector by using a bell shapeddeflector. The fuel sprays are deflected straight down from their initial umbrella angle, andthe resulting deflection force is measured in a thin strained section of the load cell. The strainis given by three strain gauges, with quarter-bridge circuitry for each gauge.
The road to recovery : En fallstudie om Arla Foods krishantering i Mellanöstern
The aim of this thesis is to expand the understanding of 16th century Flemish art by approaching paintings by artists Pieter Aertsen (1508-1575), Joachim Beuckelaer (1533-1574) and Pieter Bruegel (c. 1525-1569) from a different perspective. This is done by extending the discourse of art history, into a discourse of literary history and primarily 16th century novels by authors such as François Rabelais and Miguel de Cervantes. The paintings are studied in relation to these 16th century novels, by comparison and as a testament of this specific time period. A widening contextualization is also constructed in which a connection to the expression of the carnivals ambivalent form, as well as the notion of lower classes is explored.
Lägre arbetsmotivation och arbetstillfredsställelse bland omsorgspersonal med flexibel arbetsplats
Syftet med studien var att undersöka skillnader i arbetsmotivation och arbetstillfredsställelse bland omsorgspersonal beroende på om de hade en fast eller flexibel arbetsplats. I studien ingick två deltagargrupper där den ena gruppen tillhörde en fast avdelning medan de anställda i den andra gruppen flyttade runt mellan avdelningar beroende på var det för tillfället fanns behov. Studien genomfördes som en enkätundersökning inom omsorgsförvaltningen i en mindre kommun. Totalt besvarade 55 personer på enkäten som var uppdelad i två delar; Basic need satisfaction at work scale som mätte arbetsmotivation med delskalorna autonomi, kompetens och samhörighet och Minnesota job satisfaction som mätte inre och yttre arbetstillfredsställelse. Studien visade att anställda med en flexibel arbetsplats hade lägre arbetsmotivation och arbetstillfredsställelse än anställda med fast arbetsplats.
Spinnarfjärilens doft : En narratologisk läsning av Gabrielle Wittkops roman Le Nécrophile
The present BA thesis is an analysis and a close reading of the French author Gabrielle Wittkop's novel Le Nécrophile (1972). The analysis consists of two parts. The first part focuses on the story and can be described as an attempt to interpret the engine of the history. The second part of the analysis focuses on the narrative; how the story is told. Le Nécrophiles main motif is re-encoding the representation of death in art and literature, traditionally conceived as a beautiful female corpse.
Energianalys av tryckluftsystem : så kan Billerud Skärblacka AB spara energi på tryckluft
Compressed air is a low efficiency media, and is thus very expensive to produce. This thesis work began by mind mapping how to create savings on the compressed air system at Billerud Skärblacka AB. Certain issues have been chosen for further studies.In order to identify the consumption of compressed air at PM 8 and 9, several measurements were made. At PM 8 there were not found any pressure drop, only large pressure variations for short periods of time. The causes of these pressure variations were not established.
Äldres vardag i hemmiljö i ett aktivitetsperspektiv : En litteraturstudie om betydelse av tillgänglighet och uppfattning av delaktighet
Purpose: From an activity-perspective examine the meaning of housing accessibility and older persons´ perception of participation. Method: Systematic literature review of articles searched in the databases, Medline, Pubmed, Ahmed, Cinahl, Scopus and Google Scholar. Search on individual keywords, and in various combinations of the words home environment, home modification, occupational therapy, aging, accessibility and participation. Nine scientific articles were examined. Results: The articles were published between 2005 and 2009.
Nytt ventilationssystem till djurstallar :
There is two dairy farms in Sweden with ability to be opened on both long sides, one outside
Hjo and the other one, Brandstadholm, north of Sjöbo. When there is no measures and results
or not enough literature about natural ventilation and especially on this kind of air inlet, makes
my tests very interesting not only on Alnarp, but among other companies.
I would like to find out if there is any air movements direct on the cows, how high/low
temperature, air humidity, light intensity and noise standard inside the barn. Does
Brandstadholm fulfil the rules and regulations when it comes to climate inside the barn? Could
this system become the new dairy barn instead of the conventional barns in Sweden?
I am going to focus on the animals environment, after all they are the one who is going to
spend the most of the time in the barn.
I used five electrical loggers distributed inside the barn to measure the temperature and one of
the loggers measured the air humidity, every 15th minute. One logger were placed on the
outside which measured both temperature and air humidity.
Gentrifieringsprocessen : Omvandlingen av nedgångna till attraktiva stadsdelar
Title: The process of gentrification ?the transformation of declined neighbourhoods into attractive ones Gentrification = ?A social process of change where people with high socioeconomic status move into neighbourhoods which traditionally has been dominated by people from the lower classes or from ethnical minorities.? (Nationalencyklopedin 2010).In many cities around the world, disinvested neighbourhoods become the place to be, where everything happens. This usually occurs when different social groups, such as bohemians, homosexuals and artists, move into a declined and disinvested neighbourhood. After a while, people from the middleclass move in to the area due to its increased attractiveness, and start to renovate their properties. This usually leads to higher rents, which force some of the original inhabitants to leave the neighbourhood.
Röjningsformen och stamantalets effekt på höjd- och diametertillväxt i toppröjda och konventionellt röjda tallbestånd.
Topping is a precommercial thinning (PCT) method where secondary stems are cut higher above the ground compared to conventional PCT. The secondary stems continue to live for a period and are supposed to compete with the main stems and promote their quality.The objective of the study was to compare the effect of PCT on height and diameter growth between topping and conventional PCT. The study also analysed the relationship between height and diameter growth and the number of stems after PCT.Nine topped stands and six conventional precommercially thinned stands were visited between February 28th and March 5. One sample plot per hectare was laid out in the investigated stands. In every sample plot the number of stems was counted and five main stems were measured for height, height growth since PCT, diameter and diameter growth since PCT.The results showed significantly higher effect on height growth after topping as compared to conventional PCT but no significant difference in the effect of diameter growth between topping and conventional PCT.
How do intrinsic and extrinsic motivation correlate with each other in open source software development?
Open source is growing outside the boundaries of hackers, amateurs and software development, creating a humongous potential in many different areas and aspects of society. The intrinsic and extrinsic motivations that drives open source have been in the subject of much research recently, but how they affect each other when paid and unpaid contributors come together is still hidden in obscurity. In this study I investigate how intrinsic and extrinsic motivation correlates with each other and how those correlations affect paid and unpaid open source software contributors. The literature synthesis is based on of systematic reviews through searches in library databases, identification of articles by searching on the Internet and by reading relevant books. My results indicate that intrinsic and extrinsic motivations continuously affect each other and that paid contributors are more vulnerable since their extrinsic motivation in terms of money is reached only when many other motivations are fulfilled.
Produktivitetseffekter av flerträdshantering
The main purpose of this study is to investigate the productivity effects of multiple tree handling in thinnings. Other important elements have been to investigate in which extent multi-tree handling is used in stands with different stem volumes and the impact of collecting partially delimbed fuelwood assortments has on harvesting performance.
The study is based on data from thinnings in Sydved and contractors' operating activities. Collection and compilation of operating schedules, number of stems and surveyed volumes from several contractors and a large number of executed orders underlying the results.
Multiple tree handling is used to a much greater extent at lower average stem volumes. Prediction models for productivity of the multiple-tree handling harvesters in the study differ from the productivity models for single-tree handling. In the model developed in this study productivity is not as dependent of stem volume as reference models.