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20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： Li, He Guo, Shuxiang Wang, Hanze Bu, Dongdong Beijing Institute of Technology The Key Laboratory of Convergence Biomedical Engineering System and Healthcare Technology The Ministry of Industry and Information Technology Beijing100081 China Southern University of Science and Technology The Department of Electronic and Electrical Engineering Guangdong Shenzhen518055 China

ISBN: (纸本)9798350320831

Faced with the increase in upper limb hemiplegia caused by stroke, robotic exoskeleton-assisted home-based telerehabilitation has attracted increasing attention in recent years. Telerehabilitation is a viable alternative to traditional face-to-face rehabilitation training, which has many advantages. In this paper, a preliminary therapist-in-the-loop haptic-enable telerehabilitation system for upper limb training is presented. In the telerehabilitation system, a high-definition haptic device manipulated by the operator (served as the therapist) is the master side, and the designed upper limb rehabilitation exoskeleton worn by the subject (served as the stroke patient) is the slave side. The master-slave side realizes the operation and force data transmission through TCP/IP communication protocol. Through experiments, the angle error and time delay are analyzed, which proves the usability of the constructed system and lays the foundation for the subsequent research. © 2023 IEEE.

关键词： Feedback

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A Novel Steerable Catheter for Vascular Interventional Surgery 20

A Novel Steerable Catheter for Vascular Interventional Surge...

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20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： Yan, Yonggan Guo, Shuxiang Lyu, Chuqiao Zhao, Duohao Lin, Zhijun Beijing Institute of Technology Key Laboratory of Convergence Biomedical Engineering System and Healthcare Technology The Ministry of Industry and Information Technology Beijing100081 China Southern University of Science and Technology The Department of Electronic and Electrical Engineering Guangdong Shenzhen518055 China

ISBN: (纸本)9798350320831

To improve the operation success rate, the steerable catheter is theoretically significant and practically valuable to design. However, it is still difficult for most existing catheters to realize this function. In this paper, to steer the catheter head, a novel spring-based tendon-drive structure was proposed with a diameter of 1.5mm. To obtain precise tip poses, based on the local force analysis, it is demonstrated that the contact force at each point between the tendon and spring is equal. And under the premise of frictionless, the curvature at each point of the tendon is equal, which is only related to the tension of the tendon. Then the proposed structure is simplified to a cantilever beam only subjected to bending moment. And the deformation of the catheter tip with the control parameters is expressed. Finally, the experimental setup is established and the experimental results showed that the proposed spring-based tendon-driven catheter deflected in a circular. And the results justified the feasibility of the cantilever beam assumption and the correctness of the deformation formulas. The proposed tendon-driven catheter has the potential in improving the success rate of the vascular approach and operation safety. © 2023 IEEE.

关键词： Tendons

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A Novel Capsule Robot Drive Module with Translational Motion Functions 20

A Novel Capsule Robot Drive Module with Translational Motion...

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20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： Yao, Long Guo, Shuxiang The Key Laboratory of Convergence Biomedical Engineering System and Healthcare Technology The Ministry of Industry and Information Technology Beijing Institute of Technology Beijing100081 China Southern University of Science and Technology The Department of Electronic and Electrical Engineering Guangdong Shenzhen518055 China

ISBN: (纸本)9798350320831

Wireless endoscopic robots, which are often used in gastrointestinal diseases, are difficult to integrate multiple functions simultaneously due to their limited size. Based on the functional modular working concept of capsule robots previously proposed. The drive module supports and navigates the functional modules for specific diagnosis or treatment, and the two can form new structures through docking mechanisms. The drive module developed so far has a simple structure and can realize basic transportation work, but the motion state is only a single axial rotation. In this study, we will introduce a magnetic drive module of a gastrointestinal capsule robot with forward translation movement ability, which can ensure horizontal forward movement under the condition of maintaining stability at one end, and the rotation surface of the external control magnetic field is replaced from a plane perpendicular to the direction of motion to a plane parallel to it, which is conducive to the utilization of the rotation degrees of freedom of the vertical plane by the functional module that matches it. Experiments show that the drive module can advance stably within the error range. © 2023 IEEE.

关键词： Magnetic fields

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Simultaneous removal of phenanthrene and Pb using novel PPG-CNTs-nZVI beads

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Environmental Science and Pollution Research 2024年第21期31卷 30620-30632页

作者： Zhang, Xiaoran Du, Haoyu Wang, Chunxia Liu, Junfeng Zhang, Qiao Zhang, Ziyang Tan, Chaohong Li, Haiyan Hu, Yuansheng Key Laboratory of Urban Stormwater System and Water Environment Ministry of Education Beijing University of Civil Engineering and Architecture Beijing102616 China Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control Beijing University of Civil Engineering and Architecture Beijing100044 China Beijing Building Technology Development Co Ltd Beijing100039 China Department of Water Conservancy and Civil Engineering Beijing Vocational College of Agriculture Beijing102442 China UCD Dooge Centre for Water Resources Research School of Civil Engineering University College Dublin Belfield DublinD04 V1W8 Ireland

PPG-CNTs-nZVI bead was synthesized by polyvinyl alcohol, pumice, carbon nanotube, and guar gum-nanoscale zero-valent iron to be applied on simultaneously removal of polycyclic aromatic hydrocarbons (PAHs;phenanthrene) and heavy metals (Pb2+) via adsorption. The individual and simultaneous removal efficiency of phenanthrene and Pb2+ using the PPG-CNTs-nZVI beads was evaluated with a range of initial concentrations of these two pollutants. The kinetics and isotherms of phenanthrene and Pb2+ adsorption by the PPG-CNTs-nZVI beads were also determined. The PPG-CNTs-nZVI beads show reasonably high phenanthrene adsorption capacities (up to 0.16 mg/g), and they absorbed 85% of the phenanthrene (initial concentration 0.5 mg/L) in 30 min. High Pb2+ adsorption capabilities were also demonstrated by the PPG-CNTs-nZVI beads (up to 11.6 mg/g). The adsorption fits the Langmuir model better than the Freundlich model. The adsorption still remained stable with various ionic strength circumstances and a wide pH range (2–5). Additionally, the co-adsorption of phenanthrene and Pb2+ by the PPG-CNTs-nZVI beads resulted in synergistic effects. Particularly, phenanthrene-Pb2+ complex formation via π–cation interactions demonstrated a greater affinity than phenanthrene or Pb2+ alone. The present findings suggest that PPG-CNTs-nZVI beads may be effective sorbents for the simultaneous removal of PAHs and heavy metals from contaminated waters. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Adsorption

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TEG-Self-Powered system for Wireless Sensing Node Operating in Aqua-Greenhouse

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IEEJ Transactions on Sensors and Micromachines 2024年第10期144卷 332-337页

作者： Quan, Nguyen Hoang Van An, Nguyen Huy, Ho Thanh Tuoi, Truong Thi Kim Ono, Takahito Nguyet, Nguyen Phan Minh Cuong, Mai Thanh Tan Nhan, Nguyen Chi Van Toan, Nguyen Van Hieu, Nguyen BiSAE lab Department of Physics and Electronic Engineering Faculty of Physics- Engineering Physic University of Science 227 Nguyen Van Cu Str. Dist. 5 Ho Chi Minh city Viet Nam Department of Mechanical System Engineering Graduate School of Engineering Tohoku University 6-6-01 Aramaki-Aza-Aoba Aoba-ku Sendai980-8579 Japan Department of Science and Technology Vietnam National University Ho Chi Minh City Linh Trung ward Thu Duc Ho Chi Minh city Viet Nam

This research focuses on harnessing excess heat energy in Aquaponic greenhouses-a system combining vegetable and fish cultivation with water circulation, where a perpetual temperature difference exists between the greenhouse air and the water in hydroponic vegetable tubes. Our objective is to convert this temperature difference into electric power for using in wireless IoT sensing systems. Nineteen thermoelectric generators (TEG-12708) were evaluated in a laboratory environment to determine their internal resistance and corresponding load resistance for experimental energy surveys in greenhouses. The maximum output power reached 699.38 µW when the temperature difference across the TEG was 3°C. Furthermore, we successfully demonstrated a sensing system driven by the realistic ambient temperature environment by integrating the TEG with other electronic components, including a DC-DC converter, power management circuit, supercapacitor, and sensors. Under aqua-greenhouse conditions, the harvested temperature difference across the TEG was 3.5°C, corresponding to the TEG’s output power of 0.55 mW. The output of the DC-DC converter could reach over 8 V. This work opens up new opportunities for TEGs to harness ambient aqua-greenhouse energy and convert it into usable electricity for wireless IoT sensing systems. © 2024 The Institute of Electrical Engineers of Japan.

关键词： Signal receivers

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Electrical Properties of CrSi Thin Film Resistors for High Precision Analog Circuits 10

Electrical Properties of CrSi Thin Film Resistors for High P...

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10th International Symposium on Next Generation Electronics, ISNE 2022

作者： Zhu, Jiajia Zhang, Zhili He, Nailong Zhang, Sen Gu, Lihui Zhang, Long CSMC Technologies Corporation Technology Development Department Wuxi China Southeast University The National Asic System Engineering Research Center School of Electronic Science and Engineering Nanjing China

ISBN: (纸本)9781665455251

CrSi thin films are deposited on SiO2 by reactive magnetron sputtering in a mixed atmosphere of argon and nitrogen, where nitrogen is the reactive gas, following by annealing in nitrogen and hydrogen at different temperatures. The effects of sputtering atmosphere (nitrogen flow rate) and annealing temperature on film structural and electrical properties of these films are investigated. It's found that nitrogen doping inhibits grains growth to a certain extent and the effects of nitrogen doping amount on the square resistance of annealed films are different. TCR (temperature coefficient of resistance), by adjusting the sputtering atmosphere and annealing temperature, can be effectively controlled within the original 10% range, that is, optimized from about ±20 ppm/ ? to ±2 ppm/ ?, indicating that resistors possess more excellent stability performance. This work probes the impact trend of key process parameters on square resistance and TCR in detail, which have important reference value for the development of high-precision resistors technology. © 2023 IEEE.

关键词： Silica

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Sharing Economy in Local Energy Markets

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Journal of Modern Power systems and Clean Energy 2023年第3期11卷 714-726页

作者： Zhaoyuan Wu Jianxiao Wang Haiwang Zhong Feng Gao Tianjiao Pu Chin-Woo Tan Xiupeng Chen Gengyin Li Huiru Zhao Ming Zhou Qing Xia School of Economics and Management North China Electric Power UniversityBeijing 102206China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China National Engineering Laboratory for Big Data Analysis and Applications Peking UniversityBeijing 100871China State Key Lab of Power Systems Department of Electrical EngineeringTsinghua UniversityBeijing 100084China Department of Industrial Engineering and Management College of EngineeringPeking UniversityBeijing 100871China China Electric Power Research Institute Beijing 100192China Department of Civil and Environmental Engineering Stanford UniversityPalo AltoCA 94305USA Engineering and Technology Institute Groningen University of Groningen9742 AG Groningenthe Netherlands

With an increase in the electrification of end-use sectors,various resources on the demand side provide great flexibility potential for system operation,which also leads to problems such as the strong randomness of power consumption behavior,the low utilization rate of flexible resources,and difficulties in cost *** the core idea of“access over ownership”,the concept of the sharing economy has gained substantial popularity in the local energy market in recent ***,we provide an overview of the potential market design for the sharing economy in local energy markets(LEMs)and conduct a detailed review of research related to local energy sharing,enabling technologies,and potential *** paper can provide a useful reference and insights for the activation of demand-side flexibility ***,this paper can also provide novel insights into the development and further integration of the sharing economy in LEMs.

关键词： Energy sharing flexibility potential local energy market information and communication technology sharing economy

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Enhancing compatibility and biodegradability of polylactic acid/biomass composites through torrefaction of forest residue

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Journal of Bioresources and Bioproducts 2025年第1期10卷 51-61页

作者： June-Ho Choi Myeong Rok Ahn Chae-Hwi Yoon Yeon-Su Lim Jong Ryeol Kim Hyolin Seong Chan-Duck Jung Sang-Mook You Jonghwa Kim Younghoon Kim Hyun Gil Cha Jae-Won Lee Hoyong Kim Center for Bio-based Chemistry Korea Research Institute of Chemical Technology(KRICT)Ulsan 44429South Korea Department of Wood Science and Engineering College of Agriculture and Life SciencesChonnam National UniversityGwangju 61186South Korea Interdisciplinary Program in IT-Bio Convergence System Chonnam National UniversityGwangju 61186South Korea

This study investigated the effects of torrefaction on forest residue(FR)and its subsequent ap-plication as a bulk-loading filler in polylactic acid(PLA)*** enhanced the chemical properties of FR,improving its compatibility with PLA,and the crystallinity increased from 24.9%to 42.5%.The process also improved the hydrophobicity of PLA/biomass composites,as demonstrated by the water contact angle of 76.1°,closely matching that of neat PLA(76.4°).With the introduction of 20%modified biomass properties after torrefaction treatment,the tensile strength of PLA/biomass composite increased from 58.7 to 62.3 ***,the addition of torrefied forest residue(TFR)accelerated biodegradation by increasing the onset of degrada-tion and inhibiting *** 90 d,the biodegradability of PLA/biomass composites reached 94.9%,which had a 6.9%increase compared to the neat PLA(88.8%).Overall,this study highlights the potential of torrefaction in enhancing both the physical properties and biodegrad-ability of PLA-based composites,contributing to a more sustainable approach to reducing plastic pollution.

关键词： Forest residue Torrefaction Bulk-loading filler Polylactic acid composite Hydrophobicity Tensile strength Biodegradability

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The Performance Evaluation of Static Obstacle Recognition by Underwater Pressure Characteristics for Underwater Spherical Robot 20

The Performance Evaluation of Static Obstacle Recognition by...

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20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： Li, Ao Guo, Shuxiang The Key Laboratory of Convergence Biomedical Engineering System and Healthcare Technology The Ministry of Industry and Information Technology Beijing Institute of Technology Beijing100081 China Southern University of Science and Technology The Department of Electronic and Electrical Engineering Guangdong Shenzhen518055 China

ISBN: (纸本)9798350320831

Underwater spherical robots are flexible and often perform tasks in narrow, dark and complex environments. The artificial lateral line system inspired by the lateral line system of fish can recognize obstacles. However, currently, the recognition of obstacles under the artificial lateral line system is mainly based on the vibration characteristics of obstacles. Based on the blank recognition of static obstacles, this paper analyzes the feasibility of recognition static obstacles. A polynomial regression model is proposed to detect static obstacles (walls) by moving robots. Finally, the effectiveness of obstacle recognition is verified by experiment and simulation. © 2023 IEEE.

关键词： Regression analysis

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Key Issues for Modelling, Operation, Management and Diagnosis of Lithium Batteries: Current States and Prospects

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Energy engineering 2024年第8期121卷 2085-2091页

作者： Bo Yang Yucun Qian Jianzhong Xu Yaxing Ren Yixuan Chen Faculty of Electric Power Engineering Kunming University of Science and TechnologyKunming650500China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing102206China School of Engineering University of LincolnLincolnLN67TSUK Department of Electrical and Electronic Engineering The University of Hong KongHong Kong999077China

1 *** the continuous growth of the global population,the energy demand continues to ***,due to the dominance of fossil fuels in global energy and fossil fuels are non-renewable,it has led to the global energy crisis[1].Besides,the use of fossil fuels will generate a mass of air pollutants(e.g.,carbon dioxide,sulfur dioxide,etc.),which will cause serious environmental pollution,climate change[2],*** resolve the aforementioned issues,countries around the world have implemented a variety of measures hoping to fundamentally adjust the global energy structure and achieve sustainable ***,“Paris Agreement”reached in 2015 under the framework of“United Nations Framework Convention on Climate Change”aims to control the increase in the average temperature of the globe to within 2°C below preindustrial levels,and thereafter to peak global greenhouse gas emissions as soon as possible,continuously decreasing thereafter[3].United Kingdom plans to reduce the average exhaust emissions of“new cars”to approximately 50–70 g/km by 20230,which is roughly half of what it is now[4].In addition,China proposed a plan at“United Nations General Assembly”in 2020 to peak carbon dioxide emissions by 2030 and strive to achieve carbon neutrality by *** is a fact that the whole world is committed to changing the current energy structure,protecting the Earth’s ecology,and achieving global sustainable development[5].

关键词： Lithium batteries optimization operation modelling state estimation life prediction fault diagnosis

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