54,060 research outputs found
Beheavior of Campylobacter jejuni during the manufacture and storage of Chinese-style sausage
No full textA comparative study of the effects of methyl jasmonate and abscisic acid on some rice physiological processes
No full textOn the performance of densified DVB-H single frequency networks
No full textThe broadcasting of TV programmes to mobile phones can be enabled by the newly developed technology called Digital Video Broadcasting-Handheld (DVB-H). Because of the scarcity and cost of frequency resources, frequency reuse needs to be considered when rolling out DVB-H networks. By simulcasting the same content from several transmitters, a Single Frequency Network (SFN) can provide good coverage and good frequency efficiency. In this paper, the performance of densified DVB-H SFN networks is analysed in terms of the coverage probability under different coverage requirements with and without frequency reuse. A dichotomy searching approach is used to determine the optimal cell radius for a cell in a densified DVB-H SFN for a given network topology. Based on the optimal cell radius map and a SFN gain map generated from the simulation results, guidelines are proposed on how to avoid the potential pitfalls in configuring the parameters of a densified DVB-H SFN network and optimise its parameters in terms of minimising the cost of the network for a range of predefined network parameters
Application of virus-induced gene silencing technology in gene functional validation of orchids in Orchid biotechnology
No full textA Comparison of Slurry Erosion Characteristics of TiNi Shape Memory Alloys and SUS304 Stainless Steel
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Letter from C. H. Gensler, Havasupai Agency to Carl Hayden
No full textLetter from C. H. Gensler expressing concern on behalf of the Havasupai Tribe regarding the proposed park boundaries
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