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多机器人编队控制研究进展

工程科学学报 2018年第8期40卷 893-900页

作者：贾永楠李擎北京科技大学自动化学院

首先介绍了传统的编队控制方法的定义、特点和常用方法及优缺点,并将传统编队控制时代定义为前编队控制时代.随着多智能体技术的发展,将多智能体技术引入到编队控制问题中,诞生了众多新的研究成果,称为后编队控制时代.后编队控制时代以... 详细信息

首先介绍了传统的编队控制方法的定义、特点和常用方法及优缺点,并将传统编队控制时代定义为前编队控制时代.随着多智能体技术的发展,将多智能体技术引入到编队控制问题中,诞生了众多新的研究成果,称为后编队控制时代.后编队控制时代以多智能体技术为基础,随着通信技术、计算机技术、人工智能技术的发展而逐渐壮大起来,并受到了学者的广泛关注.前编队控制时代强调多机器人通过编队协作完成单个机器人无法实现的任务,提高任务完成效率且缩短任务完成时间.后编队控制时代则是在前编队控制时代的基础上,更强调低成本、同步性和协同性,但却不那么重视每个个体的任务分工,甚至是按照规则自由分配任务,不再有＂不可替代＂的个体存在.最后给出了研究编队控制问题的基本思路和目前尚待解决的关键问题.

关键词：机器人编队控制多智能体技术大规模系统分布式控制

Progress of Deep Geological Survey Project under the China Geological Survey

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China Geology 2020年第1期3卷 153-172页

作者： Qing-tian Lü jia-yong Yan Xuan-hua Chen He-sheng Hou Wen-shi Wang Yu-le Hu Chinese Academy of Geological Sciences China Geological SurveyMinistry of Natural ResourcesBeijing 100037China SinoProbe Center Chinese Academy of Geological SciencesChina Geological SurveyMinistry of Natural ResourcesBeijing 100037China Institute of Exploration Technique Chinese Academy of Geological SciencesNanchang 330013China China University of Geosciences Wuhan 430074China

Serving as a way to understand the material composition,structure,and dynamic process of the Earth's interior,deep earth exploration is driven by not only mankind's pursuit of natural mysteries but also mankind's basic need to obtain resources and guarantee economic and social *** first phase of deep earth exploration of China(SinoProbe)was carried out from 2008 to 2016 and tremendous results were *** 2016,the China Geological Survey launched a Deep Geological Survey Project(also referred to as the Project)to continuously explore the deep *** on the national energy resources strategy,the Belt and Road Initiative,and major basic issues of the geological survey,the Project was carried out in Songliao Basin(an important energy base in China)and major geological boundaries and tectonic units including Qilian Mountains-Tianshan Mountains and Qinzhou-Hangzhou juncture *** purpose of it is to reveal the process,structure,and forming patterns of the deep ore deposits and petroleum reservoirs,clarify the evolutionary pattern and controlling factors of Mesozoic environmental climate,and discover deep fine structures of key orogens,basins,and mountains by comprehensive geophysical exploration and scientific *** achievements have been obtained after more than three years of efforts,including a cumulative 1552 km of deep seismic reflection profiles and magnetotelluric profiles,an ultra-deep continental scientific crilling well,a scientific drilling pilot hole,and a magnetotelluric array and a portable broadband seismic array,both of which cover South ***,significant progress has been made in ultra-deep drilling technology,deep oil and gas discovery in Songliao Basin,and basic geological issues of Qilian Orogen and Qinzhou-Hangzhou juncture belt in South China,greatly accelerating the deep earth exploration in China and further consolidating China's position as a power in deep earth exploration.

关键词： Deep geological survey Deep oil and gas discovery Ultra-deep scientific drilling technology Songke No.2 well Qilian Mountains-Tianshan Mountains Qinzhou-Hangzhou juncture belt Songliao Basin China

A large outbreak of acute gastroenteritis caused by the human norovirus GII.17 strain at a university in Henan Province,China

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Infectious Diseases of Poverty 2017年第1期6卷 42-50页

作者： Xue-yong Huang jia Su Qian-Chao Lu Shi-Zheng Li jia-yong Zhao Meng-Lei Li Yi Li Xiao-Jing Shen Bai-Fan Zhang Hai-Feng Wang Yu-jiao Mu Shu-Yu Wu Yan-Hua Du Li-Cheng Liu Wei-Jun Chen John David Klena Bian-Li Xu Henan Center for Disease Control and Prevention ZhengzhouChina Henan Key Laboratory of Pathogenic Microorganisms ZhengzhouChina Nanyang City Center for Disease Control and Prevention NanyangChina Program of Global Disease Detection US Centers for Disease Control and PreventionBeijingChina State Key Laboratory of Pathogens and Biosecurity Institute of Microbiology and EpidemiologyAcademy of Military Medical SciencesBeijingChina Key Laboratory of Genome Sciences and Information Beijing Institute of GenomicsChinese Academy of SciencesBeijingChina Division of Global Health Protection Center for Global HealthCenters for Disease Control and PreventionAtlantaUSA

Background:Human noroviruses are a major cause of viral gastroenteritis and are the main etiological agents of acute gastroenteritis *** increasing number of outbreaks and sporadic cases of norovirus have been reported in China in recent *** was a large acute gastroenteritis outbreak at a university in Henan Province,China in the past five *** want to identify the source,transmission routes of the outbreak by epidemiological investigation and laboratory testing in order to provide the effective control ***:The clinical cases were investigated,and analysed by descriptive epidemiological methods according to factors such as time,department,grade and so *** were collected from clinical cases,healthy persons,the environment,water,and food at the *** samples were tested for potential bacteria and *** samples that tested positive for norovirus were selected for whole genome sequencing and the sequences were then ***:From 4 March to 3 April 2015,a total of 753 acute diarrhoea cases were reported at the university;the attack rate was 3.29%.The epidemic curve showed two peaks,with the main peak occurring between 10 and 20 March,accounting for 85.26%of reported *** rates of norovirus detection in samples from confirmed cases,people without symptoms,and environmental samples were 32.72%,17.39%,and 9.17%,*** phylogenetic analysis showed that the norovirus belonged to the genotype ***:This is the largest and most severe outbreak caused by genotype GII.17 norovirus in recent years in *** GII.17 viruses displayed high epidemic activity and have become a dominant strain in China since the winter of 2014,having replaced the previously dominant GII.4 Sydney 2012 strain.

关键词： Human norovirus Acute gastroenteritis outbreak Epidemiological investigation Phylogenetic analysis Henan Province China

Autophagy Attenuates MnCl2-induced Apoptosis in Human Bronchial Epithelial Cells

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Biomedical and Environmental Sciences 2016年第7期29卷 494-504页

作者： YUAN Zhun YING Xian Ping ZHONG Wei jian TIAN Shi Min WANG Yu jia yong Rui CHEN Wen FU Juan Ling ZHAO Peng ZHOU Zong Can Department of Toxicology Peking University Health Science CenterBeijing 100191China Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety Peking University Health ScienceCenterBeijing 100191China Department of Toxicology Shanghai Municipal Center for Disease Control&PreventionShanghai 200336China Chinese Academy of Inspection and Quarantine Comprehensive Test Center Beijing 100123China Medical and Healthy Analytical Center Peking University Health Science CenterBeijing 100191China Department of Toxicology Faculty of Preventive MedicineSchool of Public HealthSun Yat-sen UniversityGuangzhou 510080GuangdongChina

Objective To investigate the role of autophagy in MnC l2-induced apoptosis in human bronchial epithelial 16 HBE *** Cell proliferation was measured by MTT *** membrane potential（MMP） and apoptosis were measured by flow *** vacuoles were detected by fluorescence *** levels of apoptosis and autophagy-related proteins were measured by western *** 16 HBE cell proliferation was inhibited by Mn Cl2 in a dose-and time-dependent *** Cl2-induced 16 HBE cell growth inhibition was related to MMP depolarization prior to the induction of *** data revealed that Mn Cl2-induced apoptosis in 16 HBE cells was mediated by decreased expression of Bcl-2 and increased levels of cleaved *** was observed that when we exposed 16 HBE cells to MnCl2 in a dose-dependent manner,the formation of autophagic vacuoles and the levels of LC-3B-II were *** interference of LC3 B in these Mn Cl2-exposed cells demonstrated that MMP loss and apoptosis were ***,the pan-caspase inhibitor Z-VAD-FMK increased the cellular levels of Bcl-2 and decreased apoptosis,but did not affect the cellular levels of LC3 B in Mn Cl2-treated 16 HBE *** Mn Cl2 dose-and time-dependently inhibits 16 HBE cell proliferation and induces MMP loss and *** acts in a protective role against Mn Cl2-induced apoptosis in 16 HBE cells.

关键词： Manganese chloride Apoptosis Mitochondrial membrane potential Autophagy 16HBE cells

Susceptibility and interactions between Aedes mosquitoes and Zika viruses

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Insect Science 2021年第5期28卷 1439-1451页

作者： Teng-Fei Zhou Ze-Tian Lai Shuang Liu jia-yong Zhou Yang Liu Yang Wu Ye Xu Kun Wu Jin-Bao Gu Gong Cheng Xiao-Guang Chen Department of Pathogen Biology Key Laboratory of Tropical Disease Research of Guangdong ProvinceSchool of Public HealthSouth-ern Medical UniversityGuangzhouChina Tsinghua-Peking Center for Life Sciences School of MedicineTsinghua UniversityBeijing100084China Department of Biochemistry&Molecular Biology University of Texas Medical BranchGalvestonTexasUSA

Zika virus disease is caused by Zika virus infection,as transmitted by Aedes *** of the Zika virus strains isolated from patients display different pathogenicities toward *** vector mosquitoes for Zika virus are mainly of the Aedes genus,especially Aedes aegypti and Aedes ***,susceptibility and interactions between Aedes *** and Zika viruses remain *** this study,we chose two Zika virus strains(FSS 13025 and PRVABC59)with different abilities to infect the primary vector mosquitoes *** and *** transcriptomes and small RNA profiles of infected and uninfected mosquitoes were comparatively analyzed,and differentially expressed genes were functionally examined using RNA *** to the results,the susceptibility of PRVABC59 was higher than that of FSS13025 in Aedes vector mosquitoes,and *** was more susceptible to Zika virus than was *** PRVABC59 infection,specific differential expression profiles correlated with *** and ***,and susceptibility was significantly affected when three targeted genes were successfully knocked *** with PRVABC59,infection of *** with FSS 13025 generated more 21-nt virus small interference *** can be concluded that the susceptibility of vector Aedes *** to Zika viruses varies and that the interactions between mosquitoes and Zika virus correlate with susceptibility.

关键词： Aedes aegypti Aedes albopictus RNAi RNA-Seq susceptibility Zika virus

Subsection-filtering method applied in optoelectronic signal processing of the liquid drop analyzer

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Subsection-filtering method applied in optoelectronic signal...

Probing the peripheral self-generated magnetic field distribution in laser-plasma magnetic reconnection with Martin-Puplett interferometer polarimeter

2010 International Conference on Display and Photonics

作者： HUANG jia-yong SONG Qing WU Di LIU Jing ZHANG Chun-song Automation School Beijing University of Posts and Telecommunications Beijing 100876 China Beijing Univ. of Posts and Telecommunications (China)

ISBN: (纸本)9780819482402

Liquid drop fingerprint can be obtained through fiber-capacitive drop analysis technology as the fiber signal changes with the drop volume which can be represented by the capacitive signal during the drop ***,if the fiber or capacitive signals are filtered by the normal low-pass filter method,the fingerprint would be distorted because of the capacitive signal’s saw-tooth style and fiber signal’s periodically abrupt *** the paper the subsection-filtering method is explored and analyzed,in which firstly separates the signals according to drop growth period and then filters every subsection *** improves that it is an effective way to solve the signal distortion problem, which usually happens when filters the fiber or capacitive signal during the signal mutation period.

关键词： Fiber-capacitive drop analysis liquid drop fingerprint subsection filter zero-phase filter signal mutation

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Chinese Physics B 2024年第4期33卷 129-134页

作者：张雅芃姚嘉文刘正东马作霖仲佳勇 Department of Astronomy Beijing Normal UniversityBeijing 100875China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China

Magnetic reconnection of the self-generated magnetic fields in laser-plasma interaction is an important laboratory method for modeling high-energy density astronomical and astrophysical *** use the Martin-Puplett interferometer(MPI)polarimeter to probe the peripheral magnetic fields generated in the common magnetic reconnection configuration,two separated coplanar plane targets,in laser-target *** introduce a new method that can obtain polarization information from the interference pattern instead of the sinusoidal function fitting of the intensity.A bidirectional magnetic field is observed from the side view,which is consistent with the magneto-hydro-dynamical(MHD)simulation results of self-generated magnetic field *** find that the cancellation of reverse magnetic fields after averaging and integration along the observing direction could reduce the magnetic field strength by one to two orders of *** indicates that imaging resolution can significantly affect the accuracy of measured magnetic field strength.

关键词： laser-plasma experiment polarimeter self-generated magnetic field magnetic reconnection

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结晶型砷酸镍的溶解性

化工学报 2006年第1期57卷 122-125页

作者：袁铁锤周科朝 jia yong feng G P Demopoulos 中南大学粉末冶金国家重点实验室湖南长沙410083 Department of Mining Metals and Materials EngineeringMcGill UniversityMontrealQCH3A2B2Canada

结晶型砷酸镍的溶解性用溶液中的Ni和As的浓度来表征.TCLP实验结果表明Ni和As在溶液中的浓度随着实验重复次数的增加而显著降低,说明自制结晶型砷酸镍中含有部分非晶态物质.长期溶解性实验证明结晶型砷酸镍的溶解在15d后达到平衡,并且随... 详细信息

结晶型砷酸镍的溶解性用溶液中的Ni和As的浓度来表征.TCLP实验结果表明Ni和As在溶液中的浓度随着实验重复次数的增加而显著降低,说明自制结晶型砷酸镍中含有部分非晶态物质.长期溶解性实验证明结晶型砷酸镍的溶解在15d后达到平衡,并且随着pH值升高溶液中Ni和As浓度降低,在pH9时达到最低的48mg.L-1As和0.2mg.L-1Ni,砷酸镍中的As和Ni在pH3和pH4时按分子式理论值n(Ni)∶n(As)=1.5同步溶解,而由于Ni(OH)2的生成,在高pH值溶液中的n(Ni)∶n(As)远低于理论值1.5.实验结果表明本研究合成的结晶型砷酸镍比Nishi mura等的更稳定,具有更低的溶解性.

关键词：结晶型砷酸镍溶解性 Ni(OH)2 稳定性

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一种保序加密域数据库认证水印算法

软件学报 2018年第12期29卷 3837-3852页

作者：项世军何嘉勇暨南大学信息科学技术学院/网络空间安全学院广东广州510632 信息安全国家重点实验室(中国科学院信息工程研究所) 北京100093

加密域水印技术适用于云环境下的隐私保护(加密)和数据安全认证(加水印).通过结合保序加密、离散余弦变换、密码哈希和数字水印技术,提出了加密域数据库认证水印算法.首先对数据进行保序加密,以达到对敏感数据内容的隐私保护;对加密后... 详细信息

加密域水印技术适用于云环境下的隐私保护(加密)和数据安全认证(加水印).通过结合保序加密、离散余弦变换、密码哈希和数字水印技术,提出了加密域数据库认证水印算法.首先对数据进行保序加密,以达到对敏感数据内容的隐私保护;对加密后的数据进行分组和离散余弦变换处理,然后将交流系数的哈希(Hashing)值作为认证信息嵌入到直流系数中来认证数据的完整性;可通过比对交流系数的哈希值和从直流系数中提取的水印信息,来判断加密数据是否受到篡改.水印嵌入设计很好地结合了保序加密的特性,使得对加密数据的水印嵌入不会影响到明文数据的正确恢复,利用密钥对加水印的加密数据库直接解密可得到原数据库.实验结果表明:所提出的算法不仅能够用于保护数据库中的内容隐私,而且能检测出不同程度的篡改和有效认证数据库数据的完整性.

关键词：保序加密方案数据库水印完整性认证离散余弦变换