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Advancements in Passive Wireless Sensing Systems in Monitoring Harsh Environment and Healthcare Applications

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Nano-Micro Letters 2025年第5期17卷 145-192页

作者： Wei Yue Yunjian Guo Jong‐Chul Lee Enkhzaya Ganbold Jia-kang wu Yang Li Cong Wang Hyun Soo Kim Young-Kee Shin Jun-Ge Liang Eun-Seong Kim Nam-Young Kim RFIC Bio Centre Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Engineering Jiangnan UniversityWuxi 214122People’s Republic of China School of Microelectronics Shandong UniversityJinan 250101People’s Republic of China School of Electronics and Information Engineering Harbin Institute of TechnologyHarbin 150001People’s Republic of China Department of Electronics Engineering Kwangwoon UniversitySeoul 01897South Korea Laboratory of Molecular Pathology and Cancer Genomics Department of Molecular Medicine and Biopharmaceutical SciencesGraduate School of Convergence Science and TechnologySeoul National UniversitySeoul 08826South Korea

Recent advancements in passive wireless sensor technology have significantly extended the application scope of sensing,particularly in challenging environments for monitoring industry and healthcare *** systems are equipped with battery-free operation,wireless connectivity,and are designed to be both miniaturized and *** features enable the safe,real-time monitoring of industrial environments and support high-precision physiological measurements in confined internal body spaces and on wearable epidermal *** the exploration into diverse application environments,the development of a systematic and comprehensive research framework for system architecture remains elusive,which hampers further optimization of these *** review,therefore,begins with an examination of application scenarios,progresses to evaluate current system architectures,and discusses the function of each component—specifically,the passive sensor module,the wireless communication model,and the readout module—within the context of key implementations in target sensing ***,we present case studies that demonstrate the feasibility of proposed classified components for sensing scenarios,derived from this systematic *** outlining a research trajectory for the application of passive wireless systems in sensing technologies,this paper aims to establish a foundation for more advanced,user-friendly applications.

关键词： Wireless sensing Passive detection Harsh environment Biomedical monitoring Flexible sensors

A New Simulation Model for Recoil Analysis of Deep-Water Drilling Risers After Emergency Disconnection

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China Ocean Engineering 2023年第4期37卷 637-644页

作者： wu Jun-kang MENG Shuai State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai 200240China

The recoil response of a deep-water drilling riser following an ED(Emergency Disconnection)scenario is a transient and sensitive *** recoiling displacement of the riser is the resultant of recoil motion and axial ***-ever,it is typically represented by one variable in recoil *** axial deformation is quite small compared with axial motion in the recoil process,it inevitably introduces numerical errors(i.e.,a large number annihilating a small number).Thus,it is hard to perform a quantitative analysis of axial deformation,although a consensus initial deformation is essential for recoil ***,the triggered axial natural modes have never been examined *** this study,the recoil response is decomposed into two parts:recoil motion and axial deformation,and a novel model is developed by Galerkin *** has demonstrated that the initial stretch has a significant effect at the initial stage in *** existing models underestimate the effects of axial *** new model can capture information of triggered natural modes and figure out the modes undergoing dynamic *** study can be beneficial to overpull setting,determination of ED time and anti-recoil control optimization.

关键词： recoil analysis drilling riser emergency disconnection axial deformation Galerkin method

Relay-Switching-Based Fixed-Time Tracking Controller for Nonholonomic State-Constrained Systems:Design and Experiment

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IEEE/CAA Journal of Automatica Sinica 2023年第8期10卷 1778-1780页

作者： Zhongcai Zhang Jinshan Bian kang wu the School of Engineering Qufu Normal UniversityRizhao 276826China the School of Internet of Things Engineering Jiangnan UniversityWuxi 214122China

Dear Editor,This letter investigates the fixed-time trajectory tracking controller design for nonholonomic chained systems with static state ***,a fixed-time tracking control law is given to carry out relay switching,... 详细信息

关键词： Fixed letter nonholonomic

Experimental Study on Conversion Efficiency of A Floating OWC Pentagonal Backward Bent Duct Buoy Wave Energy Converter

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China Ocean Engineering 2019年第3期33卷 297-308页

作者： LI Meng wu Ru-kang wu Bi-jun ZHANG Yun-qiu Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Guangzhou 510640 China Key Laboratory of Renewable Energy Chinese Academy of Sciences Guangzhou 510640 China Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development Guangzhou 510640 China University of Chinese Academy of Sciences Beijing 100049 China

Wave tank tests were carried out to evaluate the total efficiency of a floating OWC Pentagonal Backward Bent Duct Buoy (PBBDB). Two kinds of turbine generators were used in tests. The incident wave power, pneumatic power and electricity were measured. The test results show that the primary efficiency can reach up to 185.98% in regular waves and 85.86% in irregular waves. The total efficiency from wave to wire with Wells turbine-generator set is 33.43% in regular waves and 15.82% in irregular waves. The peak total efficiency of the PBBDB with check valves equipped with the impulse turbine-generator set is 41.68% in regular waves and 27.10% in irregular waves. The efficiency of the turbine-generator set is about 30% in the tests. Obviously, the total efficiency can be further improved with the increasing of turbine efficiency.

关键词： wave energy Oscillating Water Column (OWC) PBBDB Capture Width Ratio (CWR) total efficiency

Output feedback control for mobile robot systems with significant external disturbances

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Science China(Information Sciences) 2020年第9期63卷 277-280页

作者： kang wu Jinya SU Changyin SUN Key Laboratory of Measurement and Control of CSE Ministry of EducationSchool of Automation Southeast University Department of Aeronautical and Automotive Engineering Loughborough University

Dear editor,The control of nonholonomic systems, like those describing mobile robots, has attracted considerable research attention in recent decades owing to its theoretical and practical importance. Brockett’s theo... 详细信息

关键词： Nonlinear system Nonholonomic system Adaptive control Extended state observer(ESO) Disturbance rejection

Active Low-frequency Vertical Vibration Isolation System for Precision Measurements

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Chinese Journal of Mechanical Engineering 2017年第1期30卷 164-169页

作者： wu kang LI Gang HU Hua WANG Lijun Joint Institute for Measurement Science Tsinghua UniversityBeijing 100084China Department of Precision Instrument Tsinghua UniversityBeijing 100084China State Key Laboratory of Precision Measurement Technology and Instruments Tsinghua UniversityBeijing 100084China

Low-fi＇equency vertical vibration isolation systems play important roles in precision measurements to reduce seismic and environmental vibration noise. Several types of active vibration isolation systems have been developed. However, few researches focus on how to optimize the test mass install position in order to improve the vibration transmissibility. An active low-frequency vertical vibration isolation system based on an earlier instrument, the Super Spring, is designed and implemented. The system, which is simple and compact, consists of two stages： a parallelogram-shaped linkage to ensure vertical motion, and a simple spring-mass system. The theoretical analysis of the vibration isolation system is presented, including terms erroneously ignored before. By carefully choosing the mechanical parameters according to the above analysis and using feedback control, the resonance frequency of the system is reduced from 2.3 to 0.03 Hz, a reduction by a factor of more than 75. The vibration isolation system is installed as an inertial reference in an absolute gravimeter, where it improved the scatter of the absolute gravity values by a factor of 5. The experimental results verifies the improved performance of the isolation system, making it particularly suitable for precision experiments. The improved vertical vibration isolation system can be used as a prototype for designing high-performance active vertical isolation systems. An improved theoretical model of this active vibration isolation system with beam-pivot configuration is proposed, providing fundamental guidelines for vibration isolator design and assembling.

关键词： vibration isolation vertical low frequency active

Pulmonary alveolar proteinosis complicated with nocardiosis: A case report and review of the literature

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World Journal of Clinical Cases 2021年第12期9卷 2874-2883页

作者： Xiao-kang wu Quan Lin Department of Respiratory and Critical Care Medicine The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325015Zhejiang ProvinceChina

BACKGROUND Pulmonary alveolar proteinosis(PAP)is a pulmonary syndrome wherein large volumes of phospholipid and protein-rich surfactants accumulate within the *** forms include primary(auto-immune PAP),secondary,and *** is a form of suppurative disease induced upon infection with bacteria of the Nocardia ***,cases of PAP complicated with Nocardia infections are rare,regardless of ***,as such,they are easily overlooked or *** describe,here,the case of a patient suffering from simultaneous primary PAP and *** SUMMARY A 45-year-old Chinese man,without history of relevant disease,was admitted to our hospital on August 8,2018 to address complaints of activity-related respiratory exertion and cough lasting over 6 *** computed tomography(CT)revealed diffuse bilateral lung infiltration with local consolidation in the middle right lung *** transbronchial lung biopsy and CT-guided lung biopsy led to a diagnosis of primary PAP(granulocyte-macrophage colonystimulating factor antibody-positive)complicated with nocardiosis(periodic acid-Schiff-positive).After a 6 mo course of anti-infective treatment(sulfamethoxazole),the lesion was completely absorbed,such that only fibrous foci remained,and the patient exhibited significant symptom *** also showed improvement in pulmonary function and the CT imaging findings of *** whole-lung lavage has been conducted to *** case highlights that active anti-nocardia treatment may effectively improve the symptoms and alleviate PAP in patients with PAP and nocardia,possibly reducing the need for whole-lung *** When evaluating patients presenting with PAP and pulmonary infections, thepotential for nocardiosis should be considered.

关键词： Pulmonary alveolar proteinosis Nocardiosis Vitek mass spectroscopy Whole-lung lavage Case report

PERIODICAL PRESSURE-DRIVEN FLOWS IN MICROCHANNEL WITH WALL SLIP VELOCITY AND ELECTRO-VISCOUS EFFECTS

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Journal of Hydrodynamics 2010年第6期22卷 829-837页

作者： WANG Lei wu Jian-kang Department of Mechanics Huazhong University of Science and Technology National Laboratory forOptoelectronics Wuhan 430074 China

In a microfluidic system, the flow slip velocity on a solid wall can be the same order of magnitude as the average velocity in the microchannel. The flow-electricity interaction in a complex microfluidic system subjected to a joint action of wall slip and electro-viscosity is an important topic. An analytical solution for the periodical pressure-driven flow in a two-dimensional uniform microchannel, with consideration of wall slip and electro-viscous effect is obtained based on the Poisson-Boltzmann equation for the Electric Double Layer （EDL） and the Navier-Stokes equations for the liquid flow. The analytic solutions agree well with the numerical solutions. The analytical results indicate that the periodical flow velocity and the Flow-Induced Electric Field （FIEF） strongly depend on the frequency Reynolds number （Re = （wh2/v ）, that is a function of the frequency, the channel size and the kinetic viscosity of fluids. For Re 〈 1, the flow velocity and the FIEF behave similarly to those in a steady flow, whereas they decrease rapidly with Re as Re 〉 1. In addition, the electro-viscous effect greatly influences the periodical flow velocity and the FIEF, particularly, when the electrokinetic radius kH is small. Furthermore, the wall slip velocity amplifies the FIEF and enhances the electro-viscous effect on the flow.

关键词： electrokinetic flow frequency Reynolds number wall slip electro-viscous effects Flow-Induced Electric Field (FIEF)

An Efficient Enantioselective Synthesis of Blastmycinone

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Chinese Journal of Chemistry 2005年第11期23卷 1519-1522页

作者： YANG, Yong-Qing wu, Yi-kang State Key Laboratory of Bio-organic and Natural Products Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China

Blastmycinone, a degradation product of the antibiotic antimycin A, was synthesized with a TiCl4-mediated asymmetric aldolization as the key step. Some unexpected yet interesting chemistry was also observed.

关键词： lactone asymmetric synthesis aldol acylation chiral auxiliary