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Campus Vibration in Nanwangshan Campus,China University of Geosciences at Wuhan Monitored by Short-Period Seismometers

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Journal of Earth Science 2020年第5期31卷 950-956页

作者： Lihui Wu Dun Wang Ziguang Lei Jing Fu shuai min Xianbing Xu Sarina Bao School of Management Hubei University of EducationWuhan 430205China Institute of Supply Chain Operation and Service Innovation Hubei University of EducationWuhan 430205China State Key Laboratory of Geological Processes and mineral Resources School of Earth SciencesChina University of GeosciencesWuhan 430074China Department of Environmental Science and Policy University of CaliforniaCA 95616USA

Continuous seismic observations can record seismic waveforms, and ambient noise, for the purposes of earthquake researches and other applications. Here we deploy three digital seismometers(EPS-2) in and around the Nanwangshan Campus of the China University of Geosciences(Wuhan). This network was running from April 9 to May 9 of 2018. During this period, the seismometers recorded the May 4, 2018 M6.9 Hawaii earthquake. From the recorded waveforms, we could observe clearly the P and S arrivals, and the corresponding particle motions. Analysis of continuous observations of ambient noise shows obvious fluctuation of vibration intensity inside of the campus. The campus is quietest from 0 to 5 am. From 5 am on, the vibration intensity increases, and reaches the peak of entire day at 12 am. The amplitude then decreases to a very low level at 19:30 to 20:00 pm, and reaches another strong noisy time at 21:00 to 21:30 pm. After 21:30 pm, the intensity goes down slowly. We also observed seismic signals that were generated by the interaction of speed-control hump cars and ground. By taking the envelope and smooth operations, we observe different characteristics for different car speeds, which suggests that seismic monitoring approaches can be used for speed measurement of cars. This kind of small seismic network running in a real time fashion, would greatly help understanding of the sources of ambient noise at high frequency bands in interested areas. Analysis of a long-term observed dataset, and real time illustration will help to strengthen campus security and high-precision laboratory deployments, and also contribute to research atmosphere in earthquake science.

关键词： ambient noise vibration intensity seismic waves seismometers human activity

Synthesis,Characterization and Photoluminescence of Well-Ordered ZnO Micropillars Grown on ZnO Buffer Layers

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Wuhan University Journal of Natural Sciences 2007年第6期12卷 1043-1046页

作者： LU Hongbing TIAN Yu HU Meifeng shuai min LI Jinchai School of Physics and Technology Wuhan University Wuhan 430072 Hubei China

Using ZnO buffer layers prepared by simply thermal oxidation of ion beam sputtered Zn films, highly oriented and uniformly aligned single-crystalline ZnO micropillars arrays have been synthesized by thermal evaporation of Zn powder with flee catalysts at low temperature of 430℃ The ZnO micropillars show sharp hexagonal umbrella-like tips with thin ZnO nanowire grown on the tips. The umbrella-like tips grow in a layer-by-layer mode along the direction of [001]. The growth mechanism has been discussed. The formation of the micropillars basically depends on the gradually decreasing Zn vapor pressure and subsequently cooling process. The photoluminescence （PL） spectrum indicates a moderately good crystal quality of the ZnO micropillars. Our results may reinforce the understanding of the formation mechanism of different ZnO nano/microstructures. This kind of complex microstructures may find potential applications in multifunctional microdevices, optoelectronic and field emission devices.

关键词： ZnO ion beam sputtering buffer layer crystal growth optical property

Surface Enhanced Fluorescence with Silver Nanostructures on Silicon Wafer Substrates

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Surface Enhanced Fluorescence with Silver Nanostructures on ...

第十七届全国光散射学术会议

作者： shuai min le hui Jun Dong Hairong Zheng School of Physics and information Technology Shaanxi Normal University

＜正＞The surface enhancement fluorescence of Rhodamine 6G on the silicon wafer substrates with and without silver nanostructures were investigated *** was found that the SEF effect could be influenced by the configuration distribution of silver nanoparticles on the silicon substrates（Ag@Si）.The experimental results showed that the silver nanoparticles deposited on the substrates with needle-like configuration presented stronger

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衣康酸单酯羧酸盐Bola型表面活性剂性能

精细化工 2017年第10期34卷 1126-1131,1147页

作者：张帅武玉民青岛科技大学化工学院山东青岛266042

以衣康酸酐(IAn)和聚丙二醇400(PPG 400)为原料,经过酯化反应合成羧基封端的衣康酸基聚丙二醇单酯(IPM),IPM进一步与氢氧化钾反应制备了Bola型表面活性剂(Saa-K)。利用1HNMR、FTIR对其结构进行了表征。对Saa-K的表面张力、第一临界胶束... 详细信息

以衣康酸酐(IAn)和聚丙二醇400(PPG 400)为原料,经过酯化反应合成羧基封端的衣康酸基聚丙二醇单酯(IPM),IPM进一步与氢氧化钾反应制备了Bola型表面活性剂(Saa-K)。利用1HNMR、FTIR对其结构进行了表征。对Saa-K的表面张力、第一临界胶束浓度(CDC)和第二临界胶束浓度(CMC)、润湿性、泡沫性能进行了测试,考察了电解质对Saa-K溶液的表面张力和CMC的影响。结果表明:常温常压下,Saa-K的表面张力为32.46m N/m、CMC为1.715×10-2mol/L;当溶液中Saa-K的质量分数为1%时,Saa-K的第一临界相变温度TK1min,而PL的起泡高度和泡沫寿命分别为98.53 m L和2200 min。在阴离子强度相同或阳离子强度相同的情况下,无机电解质的加入均会使Saa-K溶液的表面张力和CMC显著降低,降低程度分别为:Li Cl

关键词： Bola型表面活性剂衣康酸酐酯化表面张力临界胶束浓度电解质表面活性剂

Detecting False Data Injection Attack on Cyber-Physical System based on Delta Operator

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Detecting False Data Injection Attack on Cyber-Physical Syst...

手性1-β-羧乙基杂氮锗三环类化合物的合成

第37届中国控制会议

作者： Jianlei Gao Senchun Chai min shuai Baihai Zhang Linguo Cui School of Automation Beijing Institute of Technology

More and more Cyber-Physical systems（CPSs） providing service for many critical infrastructures have been connected to the Internet, which also attracts more attention of false data injection attacks. Since CPSs require higher performance and high-speed sampling demand, it needs to discover anomalies faster and more effectively to ensure normal operation, when it has been attacked. In this paper, through studying the different discretization methods, we choose a delta operator Kalman Filter and Euclidean detector to detect the false data injection attack in sensors of CPSs and solve the problem of high-speed sampling oscillation. Besides, a false data injection attack model is designed to test and compare with related algorithm. And the result turns out that the delta operator Kalman Filter and Euclidean detector have a robust performance.

关键词： false data injection attack cyber-physical systems delta operator Kalman Filters Euclidean detector

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有机化学 2003年第7期23卷 717-719页

作者：陶春元吕群帅敏九江师范专科学校九江332000

采用固相合成的方法,首次合成(4S)-1-β-羧乙基-4-羧基杂氮锗三环(1),(4S)-3-甲基1-β-羧乙基-4-羧基杂氮锗三环(2)和(4S)-1-β-羧乙基-4-羧基-2-硫代杂氮锗三环(3).并运用元素分析,IR,1H NMR,MS进行了表征.

关键词：手性1-β-羧乙基杂氮锗三环类化合物回相合成元素分析表征结构分析抗癌活性

全球价值链嵌入、技术创新与制造业碳排放效率

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技术经济与管理研究 2023年第4期 8-14页

作者：韦帅民广西科技大学经济与管理学院广西柳州545006

文章选取2009—2020年中国制造业各细分行业面板数据,探究全球价值链嵌入、技术创新影响制造业碳排放效率的影响机理。研究发现,全球价值链嵌入对制造业碳排放效率的影响呈“U”型关系;技术创新对制造业碳排放效率影响呈“U”型关系,且... 详细信息

文章选取2009—2020年中国制造业各细分行业面板数据,探究全球价值链嵌入、技术创新影响制造业碳排放效率的影响机理。研究发现,全球价值链嵌入对制造业碳排放效率的影响呈“U”型关系;技术创新对制造业碳排放效率影响呈“U”型关系,且全球价值链嵌入与技术创新关联效应对制造业碳排放效率存在抑制作用;异质性效应下同样表现出“U”型或倒“U”型非线性影响效应;全球价值链嵌入、技术创新及两者交互项对制造业碳排放效率的长期冲击效应为正。据此,文章提出,应持续推动全球价值链嵌入深度、加快重点领域创新、着力推进中西部地区对外开放,提高制造业碳排放效率。

关键词：全球价值链嵌入技术创新制造业碳排放效率

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服装设计中功能和情感平衡的方法

纺织学报 2006年第7期27卷 90-92页

作者：帅敏沈雷江南大学纺织服装学院江苏无锡214122

讨论了在服装设计中使功能和情感达到平衡的方法。在服装设计风格多元化和多极化的时代,服装的功能与情感是服装设计中的重要组成部分。服装在满足人们最基本的御寒保暖功能的同时,同样也起到装饰和美化人体的作用。现代服装既要有很好... 详细信息

讨论了在服装设计中使功能和情感达到平衡的方法。在服装设计风格多元化和多极化的时代,服装的功能与情感是服装设计中的重要组成部分。服装在满足人们最基本的御寒保暖功能的同时,同样也起到装饰和美化人体的作用。现代服装既要有很好的穿着功能,又要能满足人们追求美的心理。一件成功的设计作品,必定要使两者关系达到一定的平衡。协调好两者之间的关系,有助于使服装设计更为完善;正确处理好两者之间的关系,则要求设计师有较强的能力和素质。

关键词：服装功能情感服装设计平衡

Technological investigation on the Short Stroke Width Control Rolling in the Rougher Mills of Hot Strip Continuous Rolling Mill Train

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Journal of Iron and Steel Research International 1995年第1期2卷 22-25页

作者： SUN Ben Rong shuai min YANG Xin Fa FAN Mei Guang LI Yi Ying ZHOU Ren Yi SHEN Jian Guo Central Iron and Steel Research Institute MMI Baoshan Iron and Steel Co.

According to technological requirement of hot charge rolling and hot direct rolling,in this paper,we investigated the technology of the width control rolling in the rougher mills of hot strip continuous rolling mill *** the basis of improving width range of continuous casting of slab,we obtained a good result of greatly increasing the yield of slab→coil is achieved.

关键词： hot charge rolling hot direct rolling short stroke width control rolling

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