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6654 Uppsatser om Military science and technology - Sida 43 av 444
Förbränningslära för bubblandefluidbädd
Radio Frequency Identification, RFID, is a convenient way to enable contactless identification which does not require any physical nor optical contact. As with any radio-based communication the signal can be intercepted, thus making the technology vulnerable to several kinds of attacks. Interception of communication is not the only threat. Since RFID tags might contain personal information or information that will grant the owner access to secure areas, skimming and spoofing attacks are also major threats against this technology. In this thesis report, the perspective of an adversary is portrayed in an RFID-enabled environment by presenting where RFID is used and how it could be abused.
Organisk minröjning : ny förmåga eller teknisk vision? ; en studie av US Navy´s minröjningsförmåga efter Kuwaitkriget 1991
US Navy stötte under Kuwaitkriget 1991 på stora problem då de stod inför en motståndare som genomförde asymmetrisk krigföring med hjälp av sjöminor. Resultatet blev två min-sprängda fartyg och en inställd landstigningsoperation. Detta var inte första gången som USA ignorerat betydelsen av att kunna bedriva minkrig. USA håller nu på att transformera sin flotta från en renodlad ?Blue Water Navy? till att kunna uppträda i kustnära farvatten.
Barns upplevelser av högläsning och boksamtal
What drove me to write this paper is the will to examine if there is a philosophically and scientifically viable alternative foundation for an objective morality other than what we like to refer to as "God". The American philosopher and neuroscientist Sam Harris presents in his book The Moral Landscape a thesis for an objective morality based on science in which he states that science can determine human values. The purpose of this paper is to perform a theoretical trial of The Moral Landscape, examining Harris' thesis and it's relations to the philosophical obstacles that stands in its way, these being mainly the famous philosophical principle "Hume's Law" and G.E. Moore's "Naturalistic Fallacy and Open Question Argument" and thus will serve as my main theoretical foundation. The results of my study was not conclusive since Harris in fact doesn't succeed in bridging the gap between facts and values on a scientific ground.
?Bring your own device? i svenska företag och organisationer
Most companies and organizations today depend on technology connected to the Internet. Schools and offices have therefore been providing computers, phones and other technology to the employees. The recent technological development and decline in prices for technology have contributed to making these products a part of everyday life for most people. This has made it very common for employees and students to bring their own devices into school and workplaces.The aim of this study is to define what "Bring your own device" means for Swedish companies and organizations and how it has been implemented in those. The aim is not mainly to generalize to all Swedish companies but create an understanding how the trend is used to provide a basis for continued research in this area.
STC : ett amerikanskt undervisningsmaterial
Under hösten 1997 och våren/hösten1998 har ett pilotprojekt bedrivits i Linköpings kommun. Det är drivet av Kungliga Vetenskapsakademien och Kungliga Ingenjörsakademien och handlar om ett amerikanskt undervisningsmaterial inom naturvetenskap och teknik. På engelska heter det"Science and Technology for Children"vilket givit namnet STC. Det är ett temaarbete med 24 olika teman att använda under de 6 första skolåren.För att använda materialet i skolan har vissa utvalda delar översatts till svenska. Det är endast en direktöversättning och inget speciellt anpassat till den svenska skolan.
SMS för personer med kognitiva och kommunikativa funktionsnedsättningar ? en intervjustudie av användares upplevelser
Current technology offers many possibilities for remotecommunication. Nevertheless, people with cognitive and communicativedisabilities have limited access to common communication technology like textmessaging via a mobile phone. This study is part of the project Text messagingwith picture symbols - a possibility for AAC users and people with cognitiveimpairments. Semi structured interviews were used to investigate three menand four women?s experiences of using Windows mobiles with adaptedfunctions for text messaging.
Högskolebibliotekariens pedagogiska roll
The Swedish academic libraries have gone trough radical changes during the last decades. The development of information technology, the educational expansion and new pedagogical ways of learning within the higher educational system have changed the conditions, not only for the academic libraries, but also in many ways for the librarians. The aim of this Masters thesis is to examine how Swedish librarians experience their pedagogic role and task in the context of an academic library. The following four questions in this investigation were asked: How do the librarians experience the formal task that they have? How do the librarians experience the physical library environment? How do the librarians experience the co-operation with others involved in their work? How do the librarians experience their own pedagogic knowledge and competence in their daily practice? The study showed that these librarians believed the physical environment to be very important and is seen as a pedagogical tool in their daily work.
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.
Det virtuella kontoret : En litteraturstudie i möjligheter och utmaningar med att använda 3D kollaborativa virtuella miljöer inom distribuerad systemutveckling
Distributed system development is a common occurrence in today?s technological and global world. Because the consequences of its geographically distributed nature it creates barriers between people that affects their communication and collaboration efforts in the distributed context. Despite a lot of technological breakthroughs over the last decades and the occurrence of video-conference applications and other tools for communication and collaboration, cultural and geographical issues have so far not yet been completely resolved. In this study I have made a literature study over distributed system development to form a set of central factors that affects the distributed development process.
Windbelt
Radio Frequency Identification, RFID, is a convenient way to enable contactless identification which does not require any physical nor optical contact. As with any radio-based communication the signal can be intercepted, thus making the technology vulnerable to several kinds of attacks. Interception of communication is not the only threat. Since RFID tags might contain personal information or information that will grant the owner access to secure areas, skimming and spoofing attacks are also major threats against this technology. In this thesis report, the perspective of an adversary is portrayed in an RFID-enabled environment by presenting where RFID is used and how it could be abused.
Bibliotekariens nya arbetsmarknad
The purpose of this thesis is to examine why graduates in librarian- and information science are employed by private companies. An initial explanation could be the influence of information technology and its impact on the librarian. A second factor relates to how employers regard the librarian outside the confines of the traditional labour market. The study is primarily based upon qualitative interviews with representatives of Swedish companies who have employed librarians since 1993, the year that the education achieved third level academic recognition. Theoretically we relied upon Manuel Castells discussion on the rise of the information society and its influence on companies and the labour market.
Analys av säkerheten av RFID i inpasseringssystem
Radio Frequency Identification, RFID, is a convenient way to enable contactless identification which does not require any physical nor optical contact. As with any radio-based communication the signal can be intercepted, thus making the technology vulnerable to several kinds of attacks. Interception of communication is not the only threat. Since RFID tags might contain personal information or information that will grant the owner access to secure areas, skimming and spoofing attacks are also major threats against this technology. In this thesis report, the perspective of an adversary is portrayed in an RFID-enabled environment by presenting where RFID is used and how it could be abused.
Aktiv bullerdämpning i ventilationssystem
Active headsets have been on the market for years and now it is time for
something else to enter the stage. The technology of active noise reduction can
for exmple also be used in ventilation systems for reducing ventilation noise.
An active control system principally consists of four important components,
namely the downstream error microphone, the upstream detection or reference
microphone, the digital signal processor (DSP) and a loudspeaker.
The upstream reference microphone listen to the primary ventilation noise and
sends it to the DSP which makes a phase shift to the signal and sends it to the
loudspeaker. The loudspeaker sends out the opposite waveform of the incoming
one and reduce the primary ventilation noise.
Jämförelse av tjänstgöringsbestämmelser i BCL-D och EU-OPS : En fallstudie för West Air Sweden
För ett flygbolag är det viktigt att ha en effektiv planering av sina resurser. Att kunna utnyttja personal och flygplan på rätt sätt är en förutsättning för en fortsatt överlevnad på marknaden. Flygbolagens tjänstebestämmelser regleras idag enligt nuvarande BCL-D 1.15. Under våren 2004 har Luftfartsverket behandlat en remiss som utgör ett förslag på en eventuell förändring av dessa tjänstebestämmelser. Remissen är ett förslag som skall gälla det gemensamma regelverket EU-OPS.
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..