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AN IMPROVED CHANNEL DETECTION METHOD FOR IEEE 802.11N MIMO SYSTEM

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Journal of Electronics(China) 2011年第4期28卷 658-663页

作者： yao xiaocheng Jian Haifang Fang Zhi Shi Yin Institute of Semiconductors Chinese Academy of Science Beijing 100083 China

Coexistence and interoperability between 20 MHz and 40 MHz device and modes of op-erations are stressed in standard IEEE 802.11n *** is mandate to report the both sub-channels states to Medium Access Control(MAC) at receiver,since for 40 MHz device,it should serve not only 20 MHz but also 40 MHz signals *** energy detection and carrier sense are employed to detect channel *** the case of 20/40 M mode,the power difference between the two sub-channels is also detected in order to report the channel state *** simulation results demonstrate that the performance of the proposed methods are much better than the methods which just employ energy ***,the simulation results show that the proposed methods ensure that the channel sensing is not a roadblock of IEEE 802.11n system design.

关键词： MIMO-OFDM Channel detection Carrier sense Energy detection

A Novel Channel Sensing Method for IEEE802.11n MIMO System

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A Novel Channel Sensing Method for IEEE802.11n MIMO System

压电材料在振动控制领域的研究进展与应用现状

2012年计算机应用与系统建模国际会议

作者： yao xiaocheng Fang Zhi Jian Haifang Shi Yin Institute of Semiconductors Chinese Academy of Science Department of Electronic Engineering Tsinghua University

Coexistence and interoperability between 20MHz and 40MHz device and modes of operation are addressed in standard IEEE802.11n system. It is mandate to give the channel state in receiving processing, since for 40MHz device and modes for it should not only fulfill the single 20MHz signal but also 40MHz signal receiver requirement. Both energy detection and carrier sense are employed to detecting channel state. In the case of 20/40M mode, the power difference between the two sub-channels is also detected in order to indicate the channel state accurately. The simulation results demonstrate that the performance of the proposed methods is much better than the methods which just taking the first step above.

关键词： MIMO-OFDM Channel Detection IEEE802.11n Carrier Sense Energy Detection

来源： cnki会议评论

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机械工程材料 2019年第6期43卷 72-76页

作者：姚晓成赵程曾涛上海材料研究所上海市工程材料应用与评价重点实验室

结合振动主动控制和被动控制原理,综述了应用于振动控制领域的单层压电陶瓷、多层叠堆压电陶瓷、压电纤维复合材料、0-3型压电复合材料等4种压电智能材料,重点介绍了其结构特点、制备工艺,以及在机械制造、航空航天和船舶航运等领域减... 详细信息

结合振动主动控制和被动控制原理,综述了应用于振动控制领域的单层压电陶瓷、多层叠堆压电陶瓷、压电纤维复合材料、0-3型压电复合材料等4种压电智能材料,重点介绍了其结构特点、制备工艺,以及在机械制造、航空航天和船舶航运等领域减振应用的研究进展,指出了压电材料的未来研究方向。

关键词：压电陶瓷多层叠堆压电纤维 0-3型压电复合材料振动控制

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如何减少城市公交车事故发生浅谈

城市公共交通 2024年第3期 21-22页

作者：姚晓城南通市公共交通集团有限公司

减少城市公交车事故,要从驾驶员、车辆、制度、交通、技术、乘客、社会等方面入手,只有把这些方面的工作做到位,堵住漏洞补齐短板,才能减少城市公交车事故的发生,为乘客提供可靠安全的公交出行。

关键词：城市公交车公交出行事故发生补齐短板驾驶员乘客

“月印万川”:美国后现代主义科幻文学中的禅宗美学意蕴

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科普创作评论 2023年第1期3卷 72-81页

作者：姚萧程何敏深圳市西乡中学深圳518102 电子科技大学外国语学院成都611731

作为后现代主义文学的重要组成部分,美国后现代主义科幻文学蕴含着独特的禅宗美学思想,对深入中西跨学科的后现代比较研究具有重要意义。文章从美国后现代主义科幻文学和禅宗的关系出发,主要以经典作品“沙丘”六部曲和“海伯利安”四... 详细信息

作为后现代主义文学的重要组成部分,美国后现代主义科幻文学蕴含着独特的禅宗美学思想,对深入中西跨学科的后现代比较研究具有重要意义。文章从美国后现代主义科幻文学和禅宗的关系出发,主要以经典作品“沙丘”六部曲和“海伯利安”四部曲为例,基于“不二法门”为重要思维方式的中国禅宗美学思想,在分析小说中人工智能与众生联系和区别的基础上,展现禅宗美学观照下的语言困境。同时,就众生的顿悟之路进行重点论述,揭示未来人类的真正走向,并且进一步指出,禅宗美学在人工智能兴起的时代背景下,为理解自我与他者提供了有益的借鉴。在后理论时代,“不二法门”等作为起源于中国的禅宗美学,也为外国文学研究场域中国话语的构建与发声提供了例证。

关键词：美国后现代主义科幻文学禅宗美学 “沙丘”六部曲 “海伯利安”四部曲人工智能

中国科幻的异质性和民族性:论荒江钓叟对凡尔纳小说的吸纳与变异

同方期刊数据库博看期刊评论

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燕山大学学报（哲学社会科学版） 2022年第5期23卷 37-45页

作者：何敏姚萧程电子科技大学外国语学院四川成都611731 深圳西乡中学广东深圳518102

晚清荒江钓叟的《月球殖民地小说》作为中国科幻小说的开山之作,呈现出中国文学与西方科幻小说因素的交织,对追溯与理解中西科幻文学早期相遇具有意义。文章分析荒江钓叟对儒勒·凡尔纳的接受、改造和吸纳,聚焦荒江钓叟作品中出现的科... 详细信息

晚清荒江钓叟的《月球殖民地小说》作为中国科幻小说的开山之作,呈现出中国文学与西方科幻小说因素的交织,对追溯与理解中西科幻文学早期相遇具有意义。文章分析荒江钓叟对儒勒·凡尔纳的接受、改造和吸纳,聚焦荒江钓叟作品中出现的科学元素和新的时空观,辨析生长于中国文化土壤的《月球殖民地小说》对中国传统文本特征与手法的继承,从叙事模式、幻想性、人物形象和主题方面探讨基于中国民族文化土壤开放出来的晚清科学小说花朵中,绽放出的与西方科幻文学迥异的异质性和民族性。从中国科学小说起点出发,丰富中国特色科幻小说的历史逻辑,探索中国传统文学通向现代的更新轨迹。

关键词：荒江钓叟儒勒·凡尔纳接受变异科学小说

维普期刊数据库博看期刊

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压电促动器的研制及其减振效果

机械工程材料 2021年第6期45卷 89-93页

作者：姚晓成蒋春燕赵程曾涛上海材料研究所上海市工程材料应用与评价重点实验室上海200437

基于压电叠堆的结构特征,设计并研制了压电促动器,确定了压电促动器的最佳预紧力;将该预紧力下的压电促动器与惯性质量块连接组成惯性式压电促动器,研究了其减振效果。结果表明:压电促动器的最佳预紧力为225 N,该预紧力下的最大输出位移... 详细信息

基于压电叠堆的结构特征,设计并研制了压电促动器,确定了压电促动器的最佳预紧力;将该预紧力下的压电促动器与惯性质量块连接组成惯性式压电促动器,研究了其减振效果。结果表明:压电促动器的最佳预紧力为225 N,该预紧力下的最大输出位移为10.35μm;在压电促动器最大输出位移为10.35μm、惯性质量块质量为130 g的减振试验装置中,振动频率为50,75,100 Hz时,惯性式压电促动器均具有良好的减振效果。

关键词：压电叠堆惯性式压电促动器预紧力减振

Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao Yu Yingjie Zhou yao Lin Ying Wu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step *** resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

Highly conductive and stable iodine doped argyrodite electrolyte for all-solid-state lithium batteries

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Journal of Energy Chemistry 2025年第1期100卷 50-58页

作者： Gaozhan Liu Jing Zhang Jing Yang Jinghui Chen Xingyue Xiao Xiayin yao Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Lithium argyrodites with high ionic conductivity and low cost are considered as one of the most prospective solid electrolytes for all-solid-state lithium ***,the poor chemical stability and compatibility with lithium metal limit their ***,Li5.4PS4.4Cl1.4I0.2solid electrolyte with high ionic conductivity of 11.49 m S cm-1and improved chemical stability is synthesized by iodine *** ultra-thin Li5.4PS4.4Cl1.4I0.2membrane with thickness of 10μm can be obtained by wet coating process,exhibiting a high ionic conductivity of 2.09 mS cm-1and low areal resistance of 1.17Ω***,iodine doping could in-situ form LiI at the lithium/electrolyte interface and improve the critical current density of Li5.4PS4.4Cl1.6from 0.8 to 1.35 mA *** resultant LiCoO2/Li5.4PS4.4Cl1.4I0.2/Li battery shows excellent cycling stability at 1 C,with a reversible specific capacity of 110.1 mA h g-1and a retention of 80.5% after 1000 *** addition,the assembled LiCoO2/Li5.4PS4.4Cl1.4I0.2membrane/Li pouch cell delivers an initial discharge capacity of 110.4 mA h g-1and 80.5% capacity retention after 100 cycles.

关键词： Argyrodite electrolytes Iodine doping Ionic conductivity Stability All-solid-state lithium battery