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@@自1997年首次报道腔镜甲状腺手术以来,国内外学者为了达到微创和美容的目的,对腔镜甲状腺手术的手术径路和建腔方式进行了多方面的研究。本文就常见的腔镜甲状腺手术径路和相应的建腔方式作一综述。 相似文献
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With increasing physical event rates and the number of electronic channels, traditional readout schemes meet the challenge of improving readout speed caused by the limited bandwidth of the crate backplane. In this paper, a high-speed data readout method based on the Ethernet is presented to make each readout module capable of transmitting data to the DAQ. Features of explicitly parallel data transmitting and distributed network architecture give the readout system the advantage of adapting varying requirements of particle physics experiments. Furthermore, to guarantee the readout performance and flexibility, a standalone embedded CPU system is utilized for network protocol stack processing. To receive the customized data format and protocol from front-end electronics, a field programmable gate array (FPGA) is used for logic reconfiguration. To optimize the interface and to improve the data throughput between CPU and FPGA, a sophisticated method based on SRAM is presented in this paper. For the purpose of evaluating this high-speed readout method, a simplified readout module is designed and implemented. Test results show that this module can support up to 70 Mbps data throughput from the readout module to DAQ. 相似文献
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智慧广电算法体系,通过算法赋能内容生产创作、指导传播资源配给、提高应急处置能效、助力精准监测监管、优化用户使用体验、促进生态健康发展.本文将对智慧广电算法体系的体系架构、能力要求进行剖析解读,并提出建设升级重点考虑的实施方案建议. 相似文献
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本文以实际地形图数据,用经典的雷达摄影测量的方法,检验了中国科学院电子学研究所(IECAS)高分辨率机载合成孔径雷达的几何精度。结果表明:该雷达影像在单图像修测(对已有地图进行更新测量)条件下,平面位置精度优于4m米;在立体图像量测的条件下, 空间位置精度优于20m。 相似文献