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Mek Stans 07Lundgren, Andreas, Möller Nielsen, Alexander, Frisk, Anders January 2007 (has links)
<p>Mek Stans 07 is a machine developed for Tetra Pak in Lund as a 10p candidate theses project at Halmstad University. The commission behind the project involved development of a machine that punches holes in packages for the inspection division at Tetra Pak. The task for the machine was to facilitate the process of making openings for testing in the company’s other equipment.</p><p>Researches on different methods of cutting, types of automatization and possible designs were made. To implement the project a design and construction from the base where chosen. A construction based on a fully automatic design with conveyor belt powered by electric motors and a grip / centring system based on pneumatics.</p><p>The packages are placed on a conveyor belt in the machine. After that a hole is punched and the packages are emptied of its contents, all done fully automatic. Finally it’s just to remove the punched and finished packages from the other belt.</p><p>A lot of energy has been used to make the machine as automatic and easy operated as possible. A minimum of instructions are needed to operate and use the machine, it’s also built to be able to handle most of Tetra Pak’s different packages.</p><p>A centring system that is able to handle all types of packages was one off all the smart solutions that were developed. By punching the packages from below, a number of problems were solved, for example the emptying and the problem with the flaps that is punched out gets caught inside the packages. However the greatest benefit was the waters weight, inside the packaging, that assisted the punching. By its mass it held the paper in the package flat while punching.</p><p>Everything on the machine where constructed from the ground, both the mechanics and the electronics. The project has resulted in a complete and fully functional machine that will be used at the inspection division at Tetra Pak.</p><p>Tetra Pak is also interested in building another equivalent machine that their sister company Tetra Recart can use. This shows that Tetra Pak is satisfied with the result.</p>
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Mek Stans 07Lundgren, Andreas, Möller Nielsen, Alexander, Frisk, Anders January 2007 (has links)
Mek Stans 07 is a machine developed for Tetra Pak in Lund as a 10p candidate theses project at Halmstad University. The commission behind the project involved development of a machine that punches holes in packages for the inspection division at Tetra Pak. The task for the machine was to facilitate the process of making openings for testing in the company’s other equipment. Researches on different methods of cutting, types of automatization and possible designs were made. To implement the project a design and construction from the base where chosen. A construction based on a fully automatic design with conveyor belt powered by electric motors and a grip / centring system based on pneumatics. The packages are placed on a conveyor belt in the machine. After that a hole is punched and the packages are emptied of its contents, all done fully automatic. Finally it’s just to remove the punched and finished packages from the other belt. A lot of energy has been used to make the machine as automatic and easy operated as possible. A minimum of instructions are needed to operate and use the machine, it’s also built to be able to handle most of Tetra Pak’s different packages. A centring system that is able to handle all types of packages was one off all the smart solutions that were developed. By punching the packages from below, a number of problems were solved, for example the emptying and the problem with the flaps that is punched out gets caught inside the packages. However the greatest benefit was the waters weight, inside the packaging, that assisted the punching. By its mass it held the paper in the package flat while punching. Everything on the machine where constructed from the ground, both the mechanics and the electronics. The project has resulted in a complete and fully functional machine that will be used at the inspection division at Tetra Pak. Tetra Pak is also interested in building another equivalent machine that their sister company Tetra Recart can use. This shows that Tetra Pak is satisfied with the result.
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Design and Implementation of SIM Functionality for TETRA-system on a Smart Card / Design och implementation av SIM-funktionalitet i ett smartcard för TETRA-systemetOlofsson, Jonas January 2012 (has links)
TETRA is an open radio standard developed by ETSI. It is specifically designed for use bygovernment agencies, emergency services such as police forces, fire departments, and ambulance,public safety networks, train radios, transport services, and the military. The TETRAstandard is used in the Swedish public safety net Rakel. Today the hand-held devices inRakel do not use a SIM card to hold the user identity. Instead, the terminal is personalisedby hard coding the user information in the terminal. As the users group grows a need forSIM cards will probably emerge since it simplifies the handling of the users for the networkadministrator, and allows the user to replace a broken terminal by simple moving his/herSIM card to another terminal. This master thesis examines the TSIM standard and extractsa specification of requirements, proposes a suitable software architecture, and partially implementsTSIM functionality on a smart card. The conclusion is that a TSIM applicationcan be integrated with an E2EE application but some modifications are needed compared toonly having the TSIM functionality in the smart card. The design and architecture describedin this master thesis can be used in systems that already use the SIM slot of the hand-helddevices for a smart card that extends the functionality of the terminal.
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Vliv teploty a světelných podmínek na reprodukci akvarijní ryby Anoptichthys jordani / The influence of temperature and light conditions on reproduction of aquarium fish Anoptichthys jordaniŠABLATURA, Pavel January 2010 (has links)
In this diploma work the influence of temperature of water and light conditions on reproduction of aquarium fish Anoptichthys jordani was investigated. Experiments were carried out in different light conditions and different temperatures of water. Fish were spawned by a method of pair and group spawning. In the end of the work optimum combination of temperature of water and light conditions on reproduction of the species is mentioned. The results of this work can be used in reproduction of investigated species.
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Technology acceptance of complex products and systems. The case of Terrestrial Trunked Radio (TETRA).Hainbuchner, Christina Maria January 2005 (has links) (PDF)
Terrestrial Trunked Radio (TETRA), a complex communication system based on a digital technology, is mainly used by public safety services. As the TETRA technology is included in a category of industrial goods called complex products and systems (CoPS), this communication system is the candidate CoPS example. In all business contexts, complex information technologies or information systems bring productivity gains for the organization only when the target group uses the system in the way it is supposed to be used. The underlying study investigates the factors influencing the acceptance of the TETRA technology on the end-user level. The theoretical model is based on Davis' (1989) Technology Acceptance Model. A qualitative pre-study was followed by a broad empirical assessment in quantitative terms (295 data sets). Results confirm the original TAM core constructs. When an already implemented system is examined, the behavioral intention component need not be taken into consideration in the TAM. The specific extension of the traditional TAM is especially valuable, as this study proves the high significance of the influence of perceived system interoperability. Moreover, peer group influence and competitive pressure have a significant influence on the user's attitude towards the use of TETRA technology. Social influences - except the influence from supervisors - play an important role in accepting mandated TETRA technology. The overall model provides valuable theoretical input for further technology acceptance studies and offers a better insight into the CoPS setting. (author's abstract)
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Equilibria in nonaqueous solutions of tetra-n-butylammonium salts.Abbruzzese, Elvis January 1970 (has links)
No description available.
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Osteologia descritiva e desenvolvimento do esqueleto axial e apendicular de Gymnocorymbus ternetzi (Boulenger,1895) (Characiformes Characidae) /Martins, Bárbara Araújo January 2016 (has links)
Orientador: Ricardo Cardoso Benine / Resumo: O gênero Gymnocorymbus Eigenmann 1908, pertencente à família Characidae, se distribui ao longo da Amazônia, Orinoco e Paraguai, e pode ser diagnosticado dos outros pertencentes à família por meio de alguns caracteres específicos para este gênero. Uma espécie importante dentro desse grupo é o Gymnocorymbus ternetzi, também conhecida como tetra negro ou black skirt tetra. Esta espécie vem sendo amplamente utilizada em estudos gerais de biologia, genética e fisiologia, porém apenas recentemente foi alvo de um estudo taxonômico abrangente cujos resultados levaram a necessidade de um maior entendimento dos estados dos caracteres envolvidos. Assim, o objetivo do presente projeto foi de descrever o processo de desenvolvimento ontogenético – dos componentes dos esqueletos axial e apendicular de Gymnocorymbus ternetzi, com ênfase nas características informativas do ponto de vista filogenético, assim como a osteologia de exemplares adultos visando complementar a informação existente e o entendimento das prováveis sinapomorfias previamente propostas. Os espécimes de G. ternetzi utilizados neste estudo foram adquiridos comercialmente e mantidos em tanques comunitários de 300 litros com temperatura de 26 a 28°C e pH entre 6,5 e 6,8. Após a entrada no período reprodutivo, machos e fêmeas foram colocados dois a dois (casais) em aquários de 30 litros, com temperatura em torno de 28°C. Situações para estimular a desova foram simuladas e após a desova os adultos foram retirados... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The genus Gymnocorymbus Eigenmann 1908, belongs to the Characidae family, is distributed along the Amazon, Orinoco and Paraguay, and can be diagnosed from other belonging to the family through some specific characters for this genus. An important species within this group is the black tetra, also known as black skirt tetra. This species has been widely used in general studies of biology, genetics and physiology, but only recently has undergone a comprehensive taxonomic study whose results have led to the need for greater understanding of the states of the characters involved. The objective of this project was to describe the ontogenetic development process - the components of the axial and appendicular skeletons of Gymnocorymbus ternetzi, with emphasis on informative features of the phylogenetic point of view, as well as the osteology of adult to complement existing information and understanding of the likely synapomorphies previously proposed. The specimens of G. ternetzi used in this study were commercially purchased and kept in community tanks of 300 liters with temperature 26 to 28 ° C and pH between 6.5 and 6.8. After entering the breeding season, males and females were placed in pairs (couples) in aquariums of 30 liters, with temperatures around 28 ° C. Situations to stimulate spawning were simulated and after spawning adults were taken to avoid possible predation of eggs. Our results provide important information on the development of the appendicular and axial skeleto... (Complete abstract click electronic access below) / Mestre
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3D graphics hardware prototyping and implementationFord, Nicky January 2000 (has links)
No description available.
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Equilibria in nonaqueous solutions of tetra-n-butylammonium salts.Abbruzzese, Elvio January 1970 (has links)
No description available.
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Adaptive algorithms for low complexity equalizers in mobile communicationsBrooks, Duncan John January 1998 (has links)
No description available.
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