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Free-walking:Pedestrian inertial navigation based on dual foot-mounted IMU

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Defence Technology（防务技术） 2024年第3期33卷 573-587页

作者： Qu Wang Meixia Fu Jianquan Wang Lei Sun Rong Huang Xianda Li Zhuqing jiang Yan Huang Changhui jiang School of Automation Science and Electrical Engineering University of Science and Technology BeijingBeijing100083China Shunde Innovation School University of Science and Technology BeijingFo Shan528399China Research Institute of china Unicom Beijing100190China School of Artificial Intelligence Beijing University of Posts and TelecommunicationsBeijing100876China department of Automation Tsinghua University Beijing100084China GEOLOC Laboratory Universite Gustave EiffelParis77454France

The inertial navigation system(INS),which is frequently used in emergency rescue operations and other situations,has the benefits of not relying on infrastructure,high positioning frequency,and strong real-time ***,the intricate and unpredictable pedestrian motion patterns lead the INS localization error to significantly diverge with *** paper aims to enhance the accuracy of zero-velocity interval(ZVI)detection and reduce the heading and altitude drift of foot-mounted INS via deep learning and equation constraint of dual *** at the observational noise problem of low-cost inertial sensors,we utilize a denoising autoencoder to automatically eliminate the inherent *** at the problem that inaccurate detection of the ZVI detection results in obvious displacement error,we propose a sample-level ZVI detection algorithm based on the U-Net neural network,which effectively solves the problem of mislabeling caused by sliding *** at the problem that Zero-Velocity Update(ZUPT)cannot suppress heading and altitude error,we propose a bipedal INS method based on the equation constraint and ellipsoid constraint,which uses foot-to-foot distance as a new observation to correct heading and altitude *** conduct extensive and well-designed experiments to evaluate the performance of the proposed *** experimental results indicate that the position error of our proposed method did not exceed 0.83% of the total traveled distance.

关键词： Indoor positioning Inertial navigation system(INS) Zero-velocity update(ZUPT) Internet of things(IoTs) Location-based service(LBS)

线性时滞系统的记忆与无记忆复合H^∞状态反馈控制

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系统工程理论与实践 2002年第6期22卷 21-25页

作者：姜偕富费树岷冯纯伯东南大学自动化研究所

对于存在状态时滞的线性时滞系统 ,研究了无记忆与带记忆的复合 H∞ 状态反馈控制器的设计问题 ,通过解相应的线性矩阵不等式求得满足设计要求的状态反馈控制器 ,得到了很好的控制效果 .最后给出一个数字仿真实例说明所得结论的有效性 .

关键词：线性时滞系统复合H^∞状态反馈控制线性矩阵不等式渐近稳定性

Bimodules associated to vertex operator superalgebras

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Science china mathematics 2008年第9期51卷 1705-1725页

作者： jiang Wei jiang {2. department of mathematics Shanghai Jiaotong UniversityShanghai 200240China department of mathematics Changshu Institute of TechnologyChangshu 215500China

Let V be a vertex operator superalgebra and m, n ∈ 1/2.?+. We construct an A n (V)-A m (V)-bimodule A n,m (V) which characterizes the action of V from the level m subspace to level n subspace of an admissible V-modul... 详细信息

关键词： vertex operator algebra admissible module vertex operator superalgebra associative algebra bimodule 17B69

Disturbance failure mechanism of highly stressed rock in deep excavation:Current status and prospects

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International Journal of Minerals,Metallurgy and Materials 2024年第4期31卷 611-627页

作者： Tao Wang Weiwei Ye Liyuan Liu Kai Liu Naisheng jiang Xianhui Feng School of Civil and Resources Engineering University of Science and Technology BeijingBeijing 100083China Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China department of Engineering Science University of OxfordParks RoadOxford OX13PJUK School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China

This article reviews the current status on the dynamic behavior of highly stressed rocks under ***,the experimental apparatus,methods,and theories related to the disturbance dynamics of deep,high-stress rock are reviewed,followed by the introduction of scholars’research on deep rock deformation and failure from an energy ***,with a backdrop of highstress phenomena in deep hard rock,such as rock bursts and core disking,we delve into the current state of research on rock microstructure analysis and residual stresses from the perspective of studying the energy storage mechanisms in ***,the current state of research on the mechanical response and the energy dissipation of highly stressed rock formations is briefly ***,the insufficient aspects in the current research on the disturbance and failure mechanisms in deep,highly stressed rock formations are summarized,and prospects for future research are *** work provides new avenues for the research on the mechanical response and damage-fracture mechanisms of rocks under high-stress conditions.

关键词： deep rock with high stress highly stressed rock rock failure residual stress energy release

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无限维Heisenberg代数的导子代数

烟台师范学院学报（自然科学版） 1996年第2期12卷 85-88页

作者：姜翠波杨国庆烟台师范学院数学系

讨论了复数域上无限维Ｈｅｉｓｅｎｂｅｒｇ代数的导干代数与导子代数的完备性．

关键词：导子代数无限秩仿射李代数完备李代数

Cloning and functional analysis of the sequences flanking mini-Tn5 in the magnetosomes deleted mutant NM4 of Magnetospirillum gryphiswaldense MSR-1

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Science china(Life Sciences) 2005年第6期48卷 574-584页

作者： LI Feng1,2. LI Ying1, jiang Wei1, WANG Zhenfang1 & LI Jilun1 1. State Key Laboratory for Agro-biotechnology and department of Microbiology,{2. Agricultural University, Beijing 100094,{2. 2. department of Biology, Huaibei Coal Industry teachers’ College, Huaibei 2.5000,{2. 1. State Key Laboratory for Agro-biotechnology and department of Microbiology China Agricultural University 100094 Beijing China 2. department of Biology Huaibei Coal Industry Teachers’ College 235000 Huaibei China

A magnetosome deleted mutant NM4 of Magnetospirillum gryphiswaldense MSR-1 was generated by mini-Tn5 transposon mutagenesis, and a 5045-bp fragment flanking mini-Tn5 in NM4 was cloned by Anchored PCR. Sequencing analysis showed that this fragment involved six putative open reading frames (ORFs); the mini-Tn5 was inserted into ORF4. Functional complementary test indicated that the 5045-bp fragment was required for biosynthesis of mag-netosomes in M. gryphiswaldense MSR-1. The protein encoded by ORF4 had 2.% of identity with the chemotaxis protein CheYIII of Caulobacter crescentus CB15, and the protein encoded by ORF4 contained a conserved signal receiver domain that can receive the signal from the sensor partner of the bacterial two-component systems. It was suggested that the protein en-coded by ORF4 may take part in the signal transduction relating to biosynthesis of magneto-somes.

关键词： Magnetospirillum gryphiswaldense, magnetosome deleted mutant, gene cloning, functional analysis.

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对称混沌系统的非线性动力学行为及控制

物理学报 2004年第11期53卷 3701-3705页

作者：于津江张明轩徐海波石家庄师范专科学校物理系石家庄050801 北京应用物理与计算数学研究所北京100088

基于线性反馈控制思想 ,提出了一种对称动力学系统及其控制混沌的方法 ,给出了预期各周期轨道反馈系数的选择原则 ,适当选择反馈系数 ,即可得到不同的周期轨道 .将此方法应用到Logistic映射中。

关键词：周期轨道对称控制混沌混沌系统非线性动力学线性反馈控制动力学系统反馈系数 Logistic映射选择原则

The Backlund Transformations of The λ MKdV-KdV Equation

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新疆大学学报(自然科学版)(中英文) 1998年第1期 23-26页

作者： jiang Zhimin (department of {2.,Shangqiu teachers College,Shangqiu,Hennan 476000,P.R.of china)

１ＩｎｔｒｏｄｕｃｔｉｏｎＡｓａｐｏｗｅｒｆｕｌｍｅａｎｓｉｎｔｈｅｃｏｎｓｔｒｕｃｔｉｏｎｏｆｓｏｌｕｔｉｏｎｓｆｏｒｎｏｎｌｉｎｅａｒｅｖｏｌｕｔｉｏｎｅｑｕａｔｉｏｎｓ，ｔｈｅＢａｃｋｌｕｎｄｔｒａｎｓｆｏｒｍ... 详细信息

１ＩｎｔｒｏｄｕｃｔｉｏｎＡｓａｐｏｗｅｒｆｕｌｍｅａｎｓｉｎｔｈｅｃｏｎｓｔｒｕｃｔｉｏｎｏｆｓｏｌｕｔｉｏｎｓｆｏｒｎｏｎｌｉｎｅａｒｅｖｏｌｕｔｉｏｎｅｑｕａｔｉｏｎｓ，ｔｈｅＢａｃｋｌｕｎｄｔｒａｎｓｆｏｒｍａｔｉｏｎｈａｓｂｅｃｏｍｅａｖｅ...

关键词： Ba..cklund transformation\ λ MKdV KdV equation\ Invariance\ Lax pair

Evidence of DNA-Ligand Binding with Different Modes Studied by Spectroscopy

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Chinese Chemical Letters 2000年第2期11卷 147-148页

作者： Xue Mei WANGI1 Xian Lun jiang1 Zu Hong LU1 Hong Yuan CHEN2.(1National Lab of Molecular and Biomolecular Electronics, Southeast University, Nanjing 2.0096 2.1} of Chemistry, Nanjing University, Nanjing 2.0094) Southeast Univ Natl Lab Mol & Biomol Elect Nanjing 210096 Peoples R China Nanjing Univ Dept Chem Nanjing 210094 Peoples R China

The binding behavior of several fluorescence dyes to calf thymus DNA has been studied by absorption, fluorescence and atomic force microscopy (AFM), which could provide direct evidence of formation modes and the corre... 详细信息

关键词： atomic force microscopy (AFM) absorption spectroscopy fluorescence DNA interaction