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1014 Uppsatser om Simple random sampling - Sida 19 av 68

Hemautomation : Spara energi genom att automatisera hemmet

In today's society there is a significant focus on energy efficiency. Despite this, people leave lamps, televisions and computer screens etc. powered on unnecessarily. The goal of this project is to build a simple prototype for home automation where a user, via an application on a mobile phone, can switch on and off the power of an electrical products in the home and as well as being able to check whether such products are switched on or off. The prototype will also collect data on power consumption for these electrical products.

KOINTEGRATIONSANALYS AV SVENSKT FASTIGHETSPRISINDEX OCH OMXS

SAMMANFATTNING Titel: Kointegrationsanalys av svenskt fastighetsprisindex och OMXS Seminarium: 2008-06-02 Ämne/kurs: FEKK01, Examensarbete kandidatnivå, 15 poäng Författare: Sebastian Hammarström, Karl-Fredrik Hansson, Jonas Hellström, Karl Liljequist Handledare: Göran Anderson Fem nyckelord: fastighetsprisindex, OMXS, kointegration, diversifiering, långsiktigt samband Syfte: Analysera historisk data för att undersöka förekomsten av långsiktigt samband mellan fastighetspriser och OMXS och se hur resultatet kan gagna investerare. Metod: Engle-Grangers kointegrationstester. Teoretiska perspektiv: Den teoretiska referensramen utgörs av effektiva marknadshypotesen och random walkteorin vilka behandlar prisutvecklingen på en tillgång. Även modern portföljvalsteori används, vilken hanterar riskspridning i en portfölj. Empiri: Fastighetsprisindex och OMXS från Q2 år 1986 till Q4 år 2007.

Dokumentärfilmproduktion ur ett ljudtekniskt experimentellt perspektiv

This paper is a study of documentary film production with focus on the filmmakers choice and usage of sound equipment. Using professional articles and literature have first of all helped us determine a standard for the conventional use of sound equipment in documentary film. Afterwards, by analyzing our own interviews we?ve received answers on how filmmakers relate to the conventional usage and why they select equipment as they do. Thereafter, we describe a technical method which helps a filmmaker to be able to record sound for documentary film on his/her own, using simple measures without reducing quality.

Analysis of Raspberry ringspot virus in raspberry by amplification of RNA-2

So far, only limited research has been carried out on viruses infecting raspberry, even though the diseases that these viruses cause result in economical losses for raspberry growers. Raspberry ringspot virus (RpRSV) belongs to the family Comoviridae and the genus Nepovirus. Nepoviruses are characterized by their icosahedral virus particles and bipartite genome of single-stranded (+) RNA (RNA-1 and RNA-2). These viruses are transmitted mainly by nematodes of the genus Longidorus, which feed on the roots of plants. RpRSV causes disease in raspberry, grapevine, strawberry and many other plants.

Detektering av krypterade filer

In contemporary encryption the vast amount of text subject to cracking has brought about the demand for methods distinguish files more likely to be encrypted. The encryption software Truecrypt can encrypt files that are not possible to identify with a file signature. To solve the detection problem, an algorithm sensitive to the absence of structure in the very code of files was developed. The program was written in the programming language EnScript which is built into the forensic software suite EnCase. The essential part of the algorithm therefore deployes the statistic of a chi-square test for deviance from a uniform distribution to distinguish files with contents that appear to be random.

Statusuppdateringar på Facebook : Förhållningssätt och vanor hos användare

A common form of communication within Facebook is the communication between users via status updates. If you write a status update all your friends have the opportunity to read and to respond to the update. The overall issue of this survey is: how are Facebook users to commu- nicate with status updates?  The survey aims to gain insight and greater understanding of communication patterns and user awareness of social contexts when they write status  updates. The study will act as an attempt to understand a small part of a complex interaction taking place in a social situation.

Finngruvan - Uppföljning av vattenkvalitet, analys avavrinning och recipienter i området efter gruvdrift

This thesis raises the problem with acid mine drainage around the closed mine Finngruvan.The purpose of the investigation was to compare metal content in surface water in the areaand its catchments between year 2010 and 2003, also to make calculation of specific runoffand metal load, furthermore determine the recipients in the area. Surface water samplingwhere preformed at the same place as 2003 and also at a few other places of interest. Adigital elevation file were used in GIS to calculate the area of the watersheds in the region,observations in the field where also made. The collected data were used to make comparisons,calculations and conclusions. The result showed that the surface water 2010 had somewhatlower metal concentrations.

Kejsarens nya kläder : En fallstudie på H&M:s Lagerfeldkollektion

As companies exert themselves to find new ways of achieving market dominance and stronger brands, the phenomenon co-branding has become increasingly popular. By cooperation between two different firms the combined effects can result in synergies not only on the balance sheet, but even through softer values such as Brand recognition, equity and larger market share. Recently the fashion company H&M launched a collection together with the esteemed fashion designer Karl Lagerfeld. The objective of this paper is to examine the effects the collaboration had on consumer?s attitudes towards the two brands.

Co-branding och dess effekter på Brand Equity : En fallstudie på samarbetet mellan Prada och LG

This dissertation is a case study on the Co-branding between Prada and LG, ?The Prada phone by LG?. The purpose of the study is to broaden the understanding of Co-branding and the effects this type of collaboration can have on a company?s brand. The research questions are: ?What effects can a Co-branding have on a company?s Brand Equity?? and ?How can these effects be measured??.

Den mottagaranpassade försäkringsbroschyren : En retorisk analys av informationsmaterial om hemförsäkringen

This essay discusses how insurance companies inform policyholders regarding home insurance. What level of support do insurance companies offer policyholders in order to supply them with enough knowledge to make an informed decision? Is information regarding insurance communicated in simple terms, or is it riddled with industry specific terminology?The essays focus is important to examine from a social context; Swedish social process does not select an insurer for an individual who neglects to choose one for their home insurance. Sweden's welfare system does otherwise provide a helping hand for a lack of decision with regard to preschool and school choice..

Hörselnedsättning bland diabetiker med typ 1-diabetes respektive typ 2-diabetes ? en jämförande metaanalys

Background: Diabetes mellitus is one of today's major public health problems, affecting up to 347 million people worldwide. Several studies have shown a correlation between hearing loss and diabetes mellitus. However, it is still unclear whether this correlation differs between type 1-diabetes and type 2-diabetes.Purpose: The purpose of this study is to investigate whether there is any difference in prevalence of hearing loss in type 1-diabetics versus type 2-diabetics.Method: A meta-analysis was performed based on ten studies that were identified through the database PubMed and through manual searching of references. Odds ratios for the risk of developing hearing loss were calculated in each study. Pooled odds ratios were calculated using a random effects model.Results: Pooled odds ratios indicates that both type 1-diabetics and type 2-diabetics are more likely to develope hearing loss compared to non-diabetic controls.

Undersökning av mätsystem och regulatorstrukturer för industriella tillämpningar

This thesis is divided in to two different parts. The first part includes examination of the measurementsystem of an industrial robot using a resolver sensor. The main focus is on methods for suppressing noise in the angularvelocity signal without increasing timedelay. Five different methods are investigated. Three of these are based on oversampling: burstsamplingmethod, meanvaluemethod and correlationmethod.

Trådlös energiöverföring via elektromagnetisk induktion

This paper describes a method for wireless energy transfer via near-field electromagnetic inductionthat is inexpensive, simple and can be applied to almost any type of system, regardless of size andenergy demands.The method uses a primary unit consisting of an oscillator, amplifier and inductive coil thattransfers energy to a secondary unit consisting of a coil, rectifier and voltage regulator. Two typesof oscillators and several amplifier designs were realized and evaluated together with a multitudeof flat coils of both monofilar and bifilar type.The results show that it is important to use an oscillator whose frequency is dependent on theinductance of the connected transmission coil, such as the Colpitts oscillator. This is preferable toan oscillator with a preset frequency, such as a Schmitt-trigger oscillator..

Kalenderanomalier på den svenska aktiemarknaden : En portföljstudie baserad på Stockholmsbörsens tio branschindex

Sverige klassificerades år 2004 som det aktietätaste landet i världen, då hela 77 procent av befolkningen var exponerad mot aktiemarknaden i någon form. År 2012 uppgick innehaven på svenska börsen till 3 715 miljarder kronor. Utvecklingen på aktiemarknaden är därför något som berör merparten av Sveriges befolkning.Investerare har sedan börsens introduktion försökt förutse marknadens utveckling för att finna de vinnande aktierna. Detta har utmynnat i flera olika sätt att analysera marknaden, exempelvis genom teknisk och fundamental analys. En tredje omtalad metod är kalenderanomalier, vilket baseras på kända mönster som tenderar att inträffa under vissa perioder på handelsåret.

Dokumentärfilmproduktion ur ett ljudtekniskt experimentellt perspektiv

This paper is a study of documentary film production with focus on the filmmakers choice and usage of sound equipment. Using professional articles and literature have first of all helped us determine a standard for the conventional use of sound equipment in documentary film. Afterwards, by analyzing our own interviews we?ve received answers on how filmmakers relate to the conventional usage and why they select equipment as they do. Thereafter, we describe a technical method which helps a filmmaker to be able to record sound for documentary film on his/her own, using simple measures without reducing quality.

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