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This paper presents a fast H.264 intra frame encoder that processes an HD720p size video at 30 fps with the operating clock frequency of 40 MHz. The low clock frequency is achieved by a novel intra prediction schedule that employs pipelining of the 4 times 4 predictions and the early termination of 16 times 16 prediction. The pipelining is achieved by the optimal processing order for 4 times 4 predictions...
Purpose: 1-124 has a long half life of 4.2 days that is suitable for imaging over several days during the biological uptake and washout of radioiodine. However 1-124 has a low positron branching ratio (23%). High-energy ??- photons (602 keV to 1,326 keV) are emitted in cascade with the positrons. These cascade ??- photons degrade the image quality. In this study, noise equivalent count rate (NECR)...
This terms Endocrine Disrupting Chemicals (EDCs) are also called Environmental Estrogens. The synthetic chemicals in the artifice products may affect the endocrine system, associated with developmental, reproductive and other health problems in wildlife and laboratory animals. In the Beijing-Tianjin-Tangshan district, there are 38.58 million populations. And chemical engineering of petroleum and coal...
Along with the development of the society, urban traffic condition attracts more attention of people. Facing the increase of car in various large and medium-sized cities day by day and more and more traffic jams, we call for a kind of intelligent garage which saves more space and has higher technical content. This paper studies and designs the software part of a garage control system based on field...
The traditional cluster routing method is a typical method for enhancing an energy efficiency, which selects cluster head in order to send the aggregated data arriving from the nodes in cluster to a base station. However the major challenges are the equal distribution of each cluster over the whole sensor network and the energy dissipation caused by the frequent information exchange between selected...
If there is noise in the original relay feedback system, because of chattering, it is not easy to obtain accurate ultimate information. To prevent chattering of the original relay output, hysteresis relay feedback method could be used. However, its relay output switching time is fluctuant and the average of switching time is different from the ultimate period. Thereby, here, we propose a chattering-free...
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