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9713 Uppsatser om System evaluation - Sida 30 av 648

Det virtuella studielandskapet -ett projekt vid Linköpings Universitetsbibliotek

The aim of the thesis is to investigate to what extent the pedagogy process has been affected by the close collaboration between librarians and teachers when it comes to education on the information search process. The thesis shows that the librarian is seen as an acting intermediate for information, and is regarded as a part of the learning process. The issues covered comprise of how students, teachers and librarians perceive that the students becomes information literate, how they perceive that the subject fields are covered, and how information has been transmitted, and how all this has been affected by the fact that the librarian is actually less available in person. Also, the following questions are discussed; how do librarians, teachers and students interact through the homepages of the course and "the landscape of studying"? And in what respect have the old library halls changed into that, which is available 24 hours a day, with different kinds of meeting opportunities where the search of information has been integrated with group projects? The foundation of this study is built on an evaluation of a project comprising of virtual study environment at the University of Linköping.

Påverkan på energianvändning och termisk komfort vid reglerinstabilitet

The purpose of the study is to investigate the possible effects of an unstable ventilation system and its influence on energy use and thermal comfort. The report also explores how qualified personal working with HVAC view and handles system control.In order to meet the requirements in energy efficiency and a comfortable indoor climate control regulation is a prerequisite. With optimized increased complexity of the climate systems, it becomes more challenging to control the system and the risk of unstable control increases. No previous studies about what affect an unstable system can have on energy use and thermal comfort have been found.The report is based on several tests were the controlling variable has been increased until the system becomes unstable. Two different types of unstable systems have been investigated.

Aspect Analyzer: Ett verktyg för automatiserad exekveringstidsanalys av komponenter och aspekter

The increasing complexity in the development of a configurable real-time system has emerged new principles of software techniques, such as aspect-oriented software development and component-based software development. These techniques allow encapsulation of the system's crosscutting concerns and increase the modularity of the software. The properties of a component that influences the systems performance or semantics are specified separately in entities called aspects, while basic functionality of the property still remains in the component. When building a real-time system, different sets of configurations of aspects and components can be combined, resulting in different configurations of the system. The temporal behavior of the system changes and a way to ensure the predictability of the system is needed.

Användbarheten i säkerhetskritiska system: en fallstudie av SIGMA-systemet

I föreliggande studie undersöks hur användare upplever användbarheten i ett säkerhetskritiskt system ? Luftfartsverkets flygledningssystem SIGMA. Utifrån litteraturstudier definieras begreppen användbarhet och säkerhetskritiska system. Empirin utgörs av intervjuer med användare av SIGMA-systemet. Studien visade att användarna upplever att systemet i väsentliga delar har bra användbarhet, vilket utifrån litteraturstudier, intervjuer och efterföljande analys främst tycks bero på att systemet arbetats fram med stor användarmedverkan och att det var utarbetat specifikt för arbetsplatsen.

Unga möter unga - En utvärdering

Unga möter unga is an activity that concentrates on sexuality, coexistence and relations. The project was founded by ?Ungdomsmottagningen centrum?. Ungdomsmottagingen centrum collaborates with the University of Gothenburg in implementation. When us students of socialwork programs have our practical vocational training place during term six we get the possibility to choose to participate on this activity aside of our other practical training.

Automatiskt avvägningssystem för obemannad undervattensfarkost

This master thesis work was done at Saab Underwater Systems AB, a company at the cutting edge of underwater technology. Here torpedoes and other underwater vehicles are developed and manufactured. The major customers are navies of different countries, mostly the Swedish navy. The aim of this master thesis is to develop, construct and evaluate an automatic Trim System for Unmanned Underwater Vehicles. The task of the system is to change the position of the centre of mass and the vehicle?s total mass or volume.

Avlastningsarmstöd till Grip-it : Optimal positionering av övre extremitet vid gripstyrkemätningar

In today?s technological society, there are increasingly less physical demands on the locomotor system. However, despite that notion strength and function in the hand?s complex biomechanical system are in fact both needed to cope with daily life. The grip function is a main function in the hand and is used in many examples of scientific research, for instance when assessing physical health and predicting the probabilities of premature mortality.

Elevers vardagsuppfattningar om tekniska system

Elever ska enligt kursplanerna i teknik få förståelse för de tekniska system de möter i sitt dagliga liv. Genom att eleverna får kunskap om teknik i allmänhet och tekniska system i synnerhet får de möjlighet att påverka sina liv som medborgare i en demokrati. I litteraturen saknas idag studier om elevers uppfattningar om tekniska system. Syftet med detta examensarbete är därför att studera vilka vardagsuppfattningar elever har om de tekniska system de möter i vardagen. Studien utgår från systemteori vilken ger en möjlighet att utnyttja det gemensamma mönster som kännetecknar analys av system.

Blinkets påverkan - En studie om rörliga skyltar i butik och dess påverkan på försäljningen samt konsumenternas attityd, köpintention och beteende

Studies show that visual elements in store have a great impact on consumers. Of all the impressions that the brain receives the visual impressions count for 83 %. One of the visual elements that retailers can use in-store to influence consumers is signs. Today, there are a lot of studies on regular signs but this is very limited when it comes to motion displays. Motion displays are signs printed on electronic paper with animated messages.

Utprövning av Fem Till Femton-formulärets småbarnsversion för utredning av barns utveckling och beteende i åldrarna 25?40 månader

The main purpose was to develop norms for the Five to fifteen questionnaire ? toddlers? version (FTF-S) in children aged 25?40 months. Apartial aim was to validate the language domain of the FTF-S against the linguistic scale in the test Bayley Scales of Infant Development ? thirdedition (Bayley-III). Another partial aim was to analyze parents' experiences of the FTF-S in order to provide suggestions for further development.

Investmentbolag eller sverigefonder som Sparform? : En analys om vilken som är den bästa sparformen med avseende på risk och avkastning åren 2002-2010

There are various investments to suit different investors, what affects the investor is the risk he/she takes with the investment and also the awareness  the investor has. According to different theories a higher risk gives even a higher yield to compensate for the extra risk the investor takes.In this paper, we discuss and compare two different forms of savings, Swedish closed-end funds and Swedish mutual funds to examine what alternative that generates highest returns in relation to the risk.To help, we use different evaluation measures that adjusts the different investments risk so that you can compare how well the investments have performed regardless of the risk they have. This will give us an answer about what investment form that have performed the best between 2002.01.01-20010.12.31. Five Sweden mutual funds and five closed-end funds have been selected to participate in the survey.To evaluate this, it is primarily quantitative data, analyzed in the evaluation measures. The results obtained in the survey show that Swedish closed-end funds have performed far better during the selected time period.

Prototyp av informationssystem för militärfordon

Computer based information systems play an important role in modern military combat vehicles. The crew needs to be able to quickly get information about both the vehicle and its outer surroundings in order to quickly make the correct decisions. In this report, we describe the development of a prototype new information system for the BvS10 vehicle, manufactured by BAE System Hägglunds AB in Örnsköldsvik.An important aspect of the system is the time it takes from the point that the information is generated by the vehicle sensors until it is presented to the user. The system must be able to ensure that it never displays information that is out of date. Thus, it is important to create a layer and component based architecture for the solution, making it possible to control, in detail, the information?s age as it moves through the system.

GRÄNSSNITTET OCH ANVÄNDARNA En undersökning av två gränssnitt mot en bibliotekskatalog.

The scope of this master´s thesis is the issue of usability in relation to interface design,in particular the interface of a university library´s online public accessed catalogue, orOPAC. Since the OPAC can be seen as the library´s ?shop window? to the world, it isof great importance that the interface to the OPAC can be used by patrons witheffectiveness, efficiency and satisfaction.The master´s thesis is based on a qualitative study performed at Karolinska InstitutetsUniversity library, and contains both a usability evaluation and an interview study. Twointerfaces were evaluated: a standard web interface provided by the system supplier, andan interface developed in-house by Karolinska Institutet´s systems department. The twointerfaces are both connected to the same online library catalogue, thus making possiblea comparative study..

Kvalitetskontroll av utskrifter från Kodak Approval XP4

When using the digital halftone proofing systems, a closer print match can be achieved compared to what earlier couldbe done with the analogue proofing systems. These proofing systems possibilities to produce accurate print match canas well lead to producing bad print matches as several print related parameters can be adjusted manually in the systemby the user. Therefore, more advanced knowledge in graphic arts technology is required by the user of the system.The prepress company Colorcraft AB wishes to control that their color proofs always have the right quality. This projectwas started with the purpose to find a quality control metod for Colorcraft´s digital halftone proofing system(Kodak Approval XP4).Using a software who supports spectral measuring combined with a spectrophotometer and a control bar, a qualitycontrol system was assembled. This system detects variations that lies out of the proofing system´s natural deviation.The prerequisite for this quality control system is that the tolerances are defined with consideration taken to the proofingsystems natural deviations.

Ryttarens rotation av bäcken och överliv vid ridning i trav :

The aim of this study was to determine the basic movements of the riders? pelvis and upper body when riding in trot seated. The study was preformed at a treadmill with seven high level dressage horses and their riders. The movements of the horse and rider were captured with a motion analysis system (ProReflex®) and also recorded on video. The horses were ridden in collected trot, 3.0 m/s.

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