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9645 Uppsatser om Computer algebra system - Sida 29 av 643

Från OMT till UML - ett nödvändigt val?

Vid objektorienterad systemutveckling är det viktigt att man genomför en analys- och designfas, dels för att man inom ett utvecklingsteam lättare ska kunna visualisera hur ett system är tänkt att bli och dels för att kunna fånga och åskådliggöra kundens krav. Till sin hjälp i dessa faser har man metoder/processer och modelleringsspråk. Varje företag har i regel haft sin egen variant av ovan nämnda, men allteftersom kom kravet på en gemensam standard att bli oundvikligt. Sedan ett antal år tillbaka finns nu en standard. Trots det finns det säkert företag kvar som ännu inte antagit denna standard.

Att använda och förstå smileys.

LSV410. Specialarbete, 15 hpHt 2011Handledare: Elisabet Engdahl.

Digital Materia

Med tankar från pedagogen Montessori och filosoferna Platon och Baudrillard har detta arbete behandlat frågor om datorn och dess betydelse för en grafiker. Frågeställningen formulerades efter hand och lydde tillslut: ?Hur kan materia te sig i digital form?? Forskningen resulterade i en hypotes för hur digital materia skulle födas i datorn: genom att blanda två uppsättningar av data, såsom två genuppsättningar tillsammans skapar en ny organism. Under produktionen utvecklades därmed en metod för hur en grafiker ska kunna skapa tillsammans med en dator. Syftet är att ge andra grafiker ett nytt sätt att se på digital grafik.

Värderingar kring fysiska papper på Södertörns högskola

Problem: This report concerns how the students of Södertörn högskola values physical papers. Even though technology have made it possible to digitalise documents, students today print and copy documents more then ever before. It will examine what the students finds valuable in physical papers and why they choose to print a document they just as well could read and manipulate via a computer.Method: This report consists of an empiric study, in form of a web poll and of a number of interviews. Furthermore earlier studies on the matter will be taking in consideration during the analysis.Results: The study shows that the students of Södertörns högskola values physical papers highly. The students choose to print a document since they find that it is easier to read, to make notes and that a printed document is easier to use on the move, rather then using a computer..

Beslutsstöd för underhåll av järnvägsfordon - En studie om utökat användande av hjulskadedetektorer i det proaktiva underhållsarbetet

Den här rapporten har som syfte att utreda vilket eldistributionssystem för offshoreenheter som sparar mest vikt och utrymme. De två elsystem som jämförs är GVAs standard system och Siemens Blue Drive System. Rapporten innehåller en teoretisk bakgrund för båda systemen och dimensionering av systemens kraftkablar samt beräkning av kabelvikter och komponentvikten för systemen. För att uppskatta kabel- rutter och längder kommer ritningsunderlag för GVAs offshoreenhet 7500 att användas.Resultatet visar att GVAs standard system är det eldistributionssystem som har den lägsta totalvikten med 168 ton, GVAs standard system har en vikt som är 101 ton lägre än Siemens Blue Drive System som har en vikt på är 269 ton. GVAs standard system har en lägre ström vilket gör att ledararean blir mindre och i med det blir kabelvikten mindre.

Systemen med rätt inställning - En studie om whistleblowingsystem i Sverige

In order to counteract and to discover unethical actions within an organisation, a growing number of Swedish companies implement a so-called whistleblowing system. The purpose of our essay is to study the mindset of companies and further analyse how this mindset affects the design and quality of companies' whistleblowing systems. To do this, we have used a qualitative approach by interviewing different Swedish companies about their mindsets and systems. The study determines that there seemingly are three different categories of systems of varying quality. In this study we have chosen to call them "internal system", "external system" and "combined system".

ERP-implementation och processkartläggning : En studie om implementering av ett ERP-syste, och vilka fördelar en processkartläggning kan ge för kravställandet.

To implement an ERP-system is not an easy process. The success of the implementation depend on many different variables. The most important one is perhaps the requirement process, to define what the organization wants and expects from the system. In this study, the advantages of a process mapping are examined, in relation to the phase where the requirements are expressed in an ERP-implementation. The conclusion is that a process mapping generates an increased communication with the supplier of the ERP-system, hence the business knows their processes and thereby what they want from the system.

Datorprogram i skolmiljö : en utvald grundskola som fallstudie

In this thesis I'm trying to investigate how good educational computer programs work in elementary school. I delimited the study to contain one elementary school in the stages of 6 to 9. The method I used was qualitative and the approach was inductive. I interviewed four teachers and five pupils as the way to collect data for the study. The theories I used were parts from different books with authors, which have done similar studies and researches.

Energibolagens framtida datainsamling

The Swedish energy companies have several different systems for data collection of the energy consumption of their clients. Often computerized remote meter readers are put in practice in order to register the energy consumption of large companies. The majority of household clients, however, are read off by the assistance of manual methods. Household power consumption is read off once a year. As a result, these clients are not debited for their actual consumption; their invoices during the year are the result of estimations. At times when the electricity supply system is highly loaded, electricity is more expensive.

Analys och förbättring av en mätenhet för laddning av elfordon

Reducing the CO2-pollution, resulting from the combustion of fossil coal for energyproduction, is important to affect environmental changes. One way to achieve a reductionis to use the oxy-fuel technology. The technology uses O2 and re-circulated flue gasduring the combustion which results in a flue gas mainly consisting of CO2. The flue gascould then be compressed and stored without environmental effects. A problem thatfollows from the compression is the risk of acidification in sensitive parts of the process.Acidification can occur because of reactions following from the contact of condensedwater and sulphur- and nitrogen-oxides which are also present in the flue gas.This report compiles and evaluates the basis of a scientific unit with the purpose ofexploring the possibilities of extracting impurities of SOx and NOx from the flue gases.The dimensions of the unit are based on basic conditions, defined for an existing oxy-fuelprocess at Chalmers, and on the results of computer modelling.

Att datorisera ett bibliotek: datoriseringen av skolbiblioteket på Sunnerbogymnasiet i Ljungby

The purpose of this paper is to describe methods to computerize a library and to compare theory with a process in a school library. The case study is based on a school library called Sunnerbogymnasiet which is situated in Ljungby. My questions are;- Which methods are parts of the process to computerize a library?- Which methods are used in the process in Sunnerbogymnasiet?- What does the practical process look like compared to the methods described in theory?In the paper I present the methods in the process according to the studied literature and compare these with a process at Sunnerbogymnasiet. The most significant result is that cooperation between the school library and the community library was the most important reason for the choice of library computer system.

Centraliserad styrning av åtkomstlistor

Can the Danish "Aftalesystemet", a system with the intention to simplify the use of services within health care, be used in Sweden? This project has investigated the possibility by installing and testing the system and explored its functions to detect any eventual problems. Analyses were made of the system's graphical part and the underlying code to see in greater detail how the communication between units occurred, since no actual documentation of it existed. Discussions with the developers took place regarding how the current system works and how further development should continue. In order to test the system, a completely virtual environment was used.


Lagerprogram för Satellitlager

Texo Application has created robots that they call for satellites; with these you can feed in storage pallets into a satellite storage. Satellite storages consist of channels in height (e.g.3 to 8 pieces) and width (e.g.3 to 100 pieces). Channels can be different long (e.g. 5 to 200 pallets). At deposit of a storage pallet the truck insert the satellite in a channel and then the pallet, the pallet is driven into the channel until it reaches another pallet or the other end.

Utvärdering av larmsystem för lageroptimering under trendvariation

Very often the interesting variables are explained by several underlying variables and in statistical analyses it is common to study the relationship between variables and groups of variables. Because of this multivariate analysis is commonly used in both science and industry. There are two problem with both univariate and multivariate analyses. One is when the variables are correlated. The other is when the number variables of exceeds the number of observations which makes the matrices algebra used in the analysis impossible to execute.

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