Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Hybrid Code"”.
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Studying the Formation of Protoplanets : A new Hybrid Code for Planetesimal Dynamics
… erfordern. Zu diesem Zweck wurde ein neues Hybridprogramm entwickelt, genannt Nbody6Disc, um den vollen Größenbereich von kilometergroßen Planetesimalen bis zu Protoplaneten abzudecken. Es vereint die Vorteile eines N-Körper-Ansatzes zur Integration der größeren Körper mit einem zusätzlichen …
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Hybrid ARQ with parallel and serial concatenated convolutional codes for next generation wireless communications
… systems by incorporating these schemes in a hybrid FEC-ARQ environment. Beginning with an overview of wireless communications and the various ARQ protocols, the thesis provides an in-depth explanation of convolutional encoding and Viterbi decoding, turbo (PCCC) and serial concatenated …
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The Construction of Variable Length Codes with Good Synchronisation Properties
… background information on binary variable length codes is given, particularly relating to the problems of compression and synchronisation. A review of the literature on the codes known as Huffman Equivalent codes (HE-codes) and T-codes, reveals many papers that deal with the synchronisation of …
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Planet formation and evolution in protoplanetary disc
… simulate through 2D local simulations using the hybrid code ATHENA. By comparing the simulated systems before and after particle clumping to the data from the Lupus star forming region in the optically thick fraction - spectral index plane, we find that the action of streaming instability drives …
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Weakly collisional electrostatic simulations for laboratory astrophysics applications
… to modelling the weakly collisional regime. The code developed to implement this novel simulation method adopts a hybrid approach, in that it solves the Vlasov-Fokker-Planck equation exactly for the ions by exploiting recently developed pseudo-spectral methods, while applying a fluid model to the …
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Analysis of Plasma Wave Irregularities Generated during Active Experiments in Near-Earth Space Environment
… are shown to produce turbulence in the lower hybrid frequency range, the resulting irregularities have important differences in their physical characteristics. A comparison between the processes is made to determine the consequences for upcoming observations. Both processes are shown to have …