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5318 Uppsatser om Computer science - computersystems - Sida 31 av 355
Forskningsfronten och forskningsbasen inom informationsvetenskap ? en bibliometrisk undersökning
The purpose with this study is to map the research front and the research base in information science, by using the bibliometric methods bibliographic coupling and author-co citation analysis. The research questions are: 1. What is the nature of the research front in information science, regarding which areas that are being studied? 2. What is the nature of the research base in information science, regarding which authors who are most cited, and how they can be grouped? The data used in the study were gathered from articles published in the journal Journal of the American society for information science and technology, published between 2004-2006, respectively 1986-2006.
En undersökning i datasäkerhet för hemanvändare : Är det nödvändigt att använda brandvägg?
The emphasize of this study is to evaluate security issues for home users having a personal computer connected to the Internet. It focus on the usage of advantages and disadvantages when using a firewall while connected to the Internet. The hypothesis is that it gives a better protection to install and use a firewall compared not to do so, due to security flaws in the operating system. The prediction was tested on a home user's personal computer. The testwork was divided into two major tests, each of them performed with, respectively without, a firewall.
IT-säkerhetspolicy ? efterlevs den av anställda?
ABSTRACT
The main purpose of IT security policies is to protect companies against
intrusion and unwanted spread of information. Statistics show that IT related
crimes tend to increase and because of that it is important, from the company?s
side of view, to be well prepared. The IT security policy is an important part
of that preparation.
A lot of the crimes related to IT can be deduced indirectly to employees at the
companies where the crime takes place.
På väg mot en elektronisk era: En fallstudie av automatiseringen på Makerere University Library, Kampala, Uganda
This thesis is a case study which describes the automation of a university library in Sub-Saharan Africa. The aim of the case study is, firstly; to find out which actors and factors have started and influenced the automation and the implementation of ICT at Makerere University Library in Kampala, Uganda. Secondly; it also discusses if the automation has changed the librarys condition. The empirical material consists of fifteen interviews with librarians and students. The empirical material itself has functioned as a base when discerning the analytical themes.
Konstruktion av analysverktyg för studie av Nature of Science i fysikläroböcker - En studie av fem gymnasieläroböcker
I examensarbetet har läroboksserier inom fysik för gymnasienivån studerats med avseende på Nature of Science. Begreppet Nature of Science, NOS, handlar om naturvetenskapens epistemologi och de sammanhang som påverkar skapandet av ny kunskap inom naturvetenskap. Aspekter från andra vetenskapsområden som, historia, filosofi, ekonomi, och sociologi lyfts fram som viktiga i kunskapsutvecklingen av naturvetenskap. Som grund för studien har ett avgränsat avsnitt, som i examensarbetet benämnts vad är ljus, undersökts. Inom detta område har det studerats om och hur NOS används i läroböckerna.
Kommunikationen mellan vårdpersonal och patienter som är döva : En litteraturstudie
The aim with this study is to explore if and how linguistic learning takes places when four pairs ofstudents in grade one writes on the computer. Observations of eight students took place duringtwelve lessons to investigate what happened during their writing processes. This study isimportant because students? computer writing is a relatively new phenomenon in the Swedishprimary school.It is clear that the peer collaboration creates a complex interaction that becomes the platform, andalso the prerequisite, for successful language training. The method can clearly give students profitsin their linguistic development.
Datalärares utbildning och yrkesbakgrund
Syftet med den här studien är att undersöka vilka yrkes- och studiebakgrunder yrkesverksamma datalärare har och om olika bakgrund leder till skillnad i uppfattningar om deras yrke och utbildning. Dessutom syftar arbetet till att undersöka hur datalärare håller sina ämneskunskaper ajour och om det finns skillnader i fortbildning beroende på utbildning och yrkesbakgrund. För att besvara arbetets frågeställningar används en kartläggande kvantitativ enkätundersökning som besvaras av yrkesverksamma datalärare från hela landet. För att få fram resultaten görs vissa sambandsanalyser och dessutom presenteras deskriptiv statistik. Undersökningen visar att majoriteten av datalärarna saknar lärarbehörighet samt att ungefär hälften tidigare har arbetat utanför skola och har professionella tillämpningar inom sitt ämne.
Konstruktion av en autonom vindstation
Construction of an autonomous wind station was a project with the goal of creating a product that could collect wind data from a sensor and then transfer this data to a server wirelessly over the GSM network. The device would be powered by batteries and solar cells and function fully without requiring external power supply. This required that a small computer was constructed and programmed to store and send data at predetermined cycle times and programming of a server that received the sent data. The project also required optimization of power consumption and dimensioning of solar cells and batteries based on this. The construction of this station demanded research both for the selection of hardware and programming software. The computer was based on a microcontroller and a GSM module that sent the data over the 2G network.
EasyMill - En kompakt CNC-fräs för träskivor
ThisreportisathesisfortheTechniciansinComputerAidedDesignprogramatHalmstadUniversity.Thegrouphasdevelopedamillingmachinemainlyusedforfiberboards,onbehalfofJohanWretborn..
Enskild väg till Tolleredsskog
This report is a bachelor thesis presented at the department of Computer Science andEngineering at Chalmers University of Technology. The aim for the project is to find a simplemethod to measure and display physical quantities in a three dimensional room.The report describes a method to construct a system for measuring differentphysical quantities via sensors. The system must be built in a modular and expandable way tobe adaptable to different tasks.The system explained in the report consists of two parts;A physical scanner with moveable probes for carrying sensors and a microcontroller forcontrolling the probes and communicating with the next part.An application written in Java for storing the measured values and presenting them in a lucidperspective.It is possible to construct the scanner with different designs and circuitry, with multiplexers andflip-flops, to ensure that an unspecified number of probes can be added to the system and thatthey can be operated simultaneously.The Java application is written in a modular way, using a design pattern that separates eachindividual part of the application. It contains exceptions and interfaces that ensure a safe andexpandable application..
Utveckling av minimax-baserad agent för strategispelet Stratego
Stratego is a boardgame not very different from chess, that contains hidden information. Because of this, existing programs play at beginner level. The purpose of this thesis is to adjust a minimax algorithm so that it passes the demands of Stratego, and then build a Stratego agent around it. Tests with existing minimax algorithms leads to the development p-e-minimax. This algorithm uses two different values in its nodes to simulate the different information available to the agent and its opponent.
Rum och plats för datorer på folkbibliotek : En kvalitativ fallstudie
This master thesis was written in the purpose to study how the location and access to computers in the physical realm of the public library reflects the undergoing changes in the public libraries role in Swedish society. This study is done in a form of a case study of three small public libraries. All of them were in the process of transforming both their physical and virtual space. The thesis focuses on where in the library the computers are placed and how their location interacts with the libraries main tasks. It also focuses on the analysis of the relationship between these two elements and how that relationship reflects the alteration of the public libraries place in society.
C# - Framtidens språk???
This paper is about the new programming language from Microsoft, C# (See Sharp)
and the
.NET Framework. They are still in beta-version, but will be released on the
market in
February 2002. This paper presents C#, not in detail but the characteristics
that distinguish the
language. A comparison is done with C++ and Java, since C# is most resembling
to these
languages. Both C# and Java have been developed from the mother- language C++.
AB Bofors betydelse för skolväsendet i Karlskoga
The aim with this study is to explore if and how linguistic learning takes places when four pairs ofstudents in grade one writes on the computer. Observations of eight students took place duringtwelve lessons to investigate what happened during their writing processes. This study isimportant because students? computer writing is a relatively new phenomenon in the Swedishprimary school.It is clear that the peer collaboration creates a complex interaction that becomes the platform, andalso the prerequisite, for successful language training. The method can clearly give students profitsin their linguistic development.
Implementering av forskningsprojektioner om havsnivåhöjning i kommunal planering : Gränsorganisationer som redskap vid riskkommunikation mellan forskning och praktik
Climate change and the sea level rise that it contributes to is an ever more pressing issue for costal municipalities around the world. Today there is a great deal of scientific reports and projections on what these changes could entail. However, resent studies on south Swedish costal municipalities have shown great discrepancies when it comes to how these scientific projections are implemented in the municipal planning and adaptation strategies. In an effort to understand the underlying reasons for this lack of concurrence, this paper has applied Rolf Lidskogs theory of the hetrogenity of science. The theory gives an explanation to the complications in the science-policy interface, by describing complicating factors in the communication between these actors.