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Development in the application of laser-induced breakdown spectroscopy in recent years:A review

Frontiers of physics 2021年第2期16卷 45-69页

作者： Lian-Bo Guo Deng Zhang Lan-Xiang Sun Shun-Chun Yao Lei Zhang Zhen-Zhen Wang Qian-Qian Wang Hong-Bin Ding Yuan Lu Zong-Yu Hou Zhe Wang Wuhan National Laboratory for Optoelectronics(WNLO) Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesSheyang 110016China School of Electric Power South China University of TechnologyGuangzhou 510640China State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser SpectroscopyShanxi UniversityTaiyuan 030006China State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong UniversityXi'an 710049China Key Laboratory of Photonic Information Technology School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China School of Physics Dalian University of TechnologyNo.2 Linggong RoadGanjingzi DistrictDalian 116024China Optics and Optoelectronics Laboratory Ocean University of ChinaQingdao 266100China State Key Lab of Power Systems Department of Energy and Power EngineeringTsinghua UniversityBeijing 100084China

Laser-induced breakdown spectroscopy(LIBS)has been widely studied due to its unique advantages such as remote sensing,real-time multi-elemental detection and none-to-little *** the efforts of researchers around the world,LIBS has been developed by leaps and ***,in recent years,more and more Chinese LIBS researchers have put tremendous energy in promoting LIBS *** is worth mentioning that the application of LIBS in a specific field has its special application background and technical difficulties,therefore it may develop in different stages.A review summarizing the current development status of LIBS in various fields would be helpful for the development of LIBS technology as well as its applications especially for Chinese LIBS community since most of the researchers in this field work in *** the present work,we summarized the research status and latest progress of main research groups in coal,metallurgy,and water,*** on the current research status,the challenges and opportunities of LIBS were evaluated,and suggestions were made to further promote LIBS applications.

关键词： laser-induced breakdown spectroscopy application

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Event-triggered sliding mode kinematic control for a four-wheeled steerable mobile robot using barrier-function-based variable gain

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Control engineering Practice 2025年 164卷

作者： Hao Wu Shuting Wang Yuanlong Xie Hu Li Sheng Quan Xie Shiqi Zheng Yiming Yan School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Guangdong Intelligent Robotics Institute Dongguan 523808 China School of Electronic and Electrical Engineering University of Leeds Leeds LS2 9JT UK School of Automation China University of Geosciences Wuhan 430074 China Walker Department of Mechanical Engineering The University of Texas at Austin Austin TX 78712 USA

Limited communication resources pose challenges to the stable control of uncertain mobile robots, especially for a four-wheeled steerable mobile robot (FSMR) with multiple sensors and actuators. This paper proposes an event-triggered sliding mode kinematic control scheme using barrier-function (BF)-based variable gain for FSMR under kinematic uncertainties and communication resources constraints. First, a novel positive-defined adjustable BF (PABF) is designed, confining the sliding variables within the predefined barrier. The given BF accommodates the aperiodic sampling, eliminating the necessity of small sampling intervals in the existing sliding mode. Then, a mixed event trigger mechanism includes the guarantees of stability and boundness of sliding variable errors, which reduces the frequency of control updates and serves as a critical element for ensuring the existence of a practical sliding mode (PSM). The preset bandwidth of PSM can be adjusted by the predefined barrier. Comparative analysis verify that the PABF enlarges the state-barrier margin, removing the need for small sampling steps. Finally, simulations and experiments demonstrate the proposed method achieves the predefined PSM band with smaller state errors. The total communication resources usage ratio is less than the compared method through a reduced number of events.

关键词： Barrier function Event trigger Kinematic control Limited communication resources Mobile robot Sliding mode

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Robotic Electrospinning Actuated by Non-Circular Joint Continuum Manipulator for Endoluminal Therapy

arXiv

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arXiv 2021年

作者： Wu, Zicong Lou, Chuqian Jin, Zhu Huang, Shaoping Liu, Ning Zou, Yun Kovac, Mirko Gao, Anzhu Yang, Guang-Zhong Institute of Medical Robotics Department of Bioengineering Shanghai Jiao Tong University Shanghai200240 China Imperial College London Empa Swiss Federal Laboratories for Materials Science and Technology Limited Hong Kong999077 Hong Kong Aerial Robotics Laboratory Imperial College London LondonSW7 2AZ United Kingdom Institute of Medical Robotics Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education Shanghai200240 China Shanghai Engineering Research Center of Intelligent Control and Management Shanghai200240 China Institute of Medical Robotics Shanghai Jiao Tong University Shanghai200240 China

Electrospinning has exhibited excellent benefits to treat the trauma for tissue engineering due to its produced micro/nano fibrous structure. It can effectively adhere to the tissue surface for long-term continuous therapy. This paper develops a robotic electrospinning platform for endoluminal therapy. The platform consists of a continuum manipulator, the electrospinning device, and the actuation unit. The continuum manipulator has two bending sections to facilitate the steering of the tip needle for a controllable spinning direction. Non-circular joint profile is carefully designed to enable a constant length of the centreline of a continuum manipulator for stable fluid transmission inside it. Experiments are performed on a bronchus phantom, and the steering ability and bending limitation in each direction are also investigated. The endoluminal electrospinning is also fulfilled by a trajectory following and points targeting experiments. The effective adhesive area of the produced fibre is also illustrated. The proposed robotic electrospinning shows its feasibility to precisely spread more therapeutic drug to construct fibrous structure for potential endoluminal treatments. © 2021, CC BY-NC-SA.

关键词： Electrospinning

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Estimation of daily evapotranspiration rate for coimbatore region using ANN modeling technique

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AIP Conference Proceedings 2022年第1期2670卷

作者： S. Swathi X. Anitha Mary M. S. P. Subathra Abel Thomas S. Thomas George 1Department of Robotics Engineering Karunya Institute of Technology and Sciences Coimbatore Tamil Nadu India 641114 2Department of EEE Karunya Institute of Technology and Sciences Coimbatore Tamil Nadu India 641114 3Department of Biomedical Engineering Karunya Institute of Technology and Sciences Coimbatore Tamil Nadu India 641114

Water conservation is the world's most spoken and written topic in recent times, coupled with global environmental phenomena like Global warming and climate change. There has been increased efforts to curtail unnecessary use of water for irrigation purposes. Drip irrigation solves only a portion of this problem. The real necessity today revolves around creating a smart system that is independent of human interference and human judgment. This work aims to establish a consensus between both by calculating a parameter known as Evapotranspiration (ETo). The standard Food and Agricultural Organization of the United Nations (FAO)-56 Penman-Monteith (PM) equation is taken as a reference for calculating the ETo value. This equation requires several meteorological inputs for estimating reference evapotranspiration (ETo). This work aims to define the model of evapotranspiration estimation that best adapts to the region of Coimbatore, Tamil Nadu, India. Here atmospherically parameters were fed into the Penman-Monteith equation and the ET predicted by the empirical model is considered as target and this was used to train the ANN model. The best results are tabulated through this work and their wavelet family is recommended for the Coimbatore region alone.

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A fault diagnosis benchmark of technical systems with incomplete data — six solutions

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Control engineering Practice 2025年 164卷

作者： Daniel Jung Erik Frisk Mattias Krysander Anna Sztyber-Betley Francesco Corrini Andrea Arici Nicolas Anselmi Mirko Mazzoleni Jiamin Xu Siwen Mo Zixuan Xu Chongpan Yang Zhile Du Hossein Safaeipour Mehdi Forouzanfar Vahid Mirahi Anna Pinnarelli Vicenç Puig Qiao Deng Yufei Liu Homayoun Najjaran Vehicular Systems Department of Electrical Engineering Linköping University Linköping SE-581 83 Sweden Faculty of Mechatronics Warsaw University of Technology Warsaw 02-525 Poland Department of Management Information and Production Engineering University of Bergamo Via G. Marconi 5 Dalmine (BG) 24044 Italy School of Automation Central South University Changsha 410083 China Department of Electrical Engineering Ahv.C. Islamic Azad University Ahvaz Iran Department of Mechanical Energy and Management Engineering (DIMEG) University of Calabria Rende Italy Institute of Robotics and Industrial Informatics (CSIC-UPC) University of Catalonia Barcelona Spain Department of Electrical and Computer Engineering University of Victoria Victoria V8W 2Y2 BC Canada

This paper presents a benchmark problem for fault diagnosis of an internal combustion engine that has been formulated and solved. The objective is to design a diagnosis system using and incomplete model information training data that only contains a limited set of fault realizations. Six different solutions to the benchmark, that were presented at the IFAC Safeprocess symposium 2024, are described and evaluated. The contribution of this paper is the benchmark and the presentation of six different solutions in one paper. The paper is intended to provide a starting point for engineers and researchers who work with fault diagnosis and monitoring of technical systems.

关键词： Fault detection and isolation Model-based diagnosis Data-driven fault diagnosis

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3D Hierarchical Refinement and Augmentation for Unsupervised Learning of Depth and Pose from Monocular Video

arXiv

引用

arXiv 2021年

作者： Wang, Guangming Zhong, Jiquan Zhao, Shijie Wu, Wenhua Liu, Zhe Wang, Hesheng Department of Automation Institute of Medical Robotics Key Laboratory of System Control and Information Processing Ministry of Education Key Laboratory of Marine Intelligent Equipment and System of Ministry of Education Shanghai Engineering Research Center of Intelligent Control and Management Shanghai Jiao Tong University Shanghai200240 China Department of Engineering Mechanics Shanghai Jiao Tong University Shanghai200240 China Department of Computer Science and Technology University of Cambridge CambridgeCB2 1TN United Kingdom

Depth and ego-motion estimations are essential for the localization and navigation of autonomous robots and autonomous driving. Recent studies make it possible to learn the per-pixel depth and ego-motion from the unlabeled monocular video. A novel unsupervised training framework is proposed with 3D hierarchical refinement and augmentation using explicit 3D geometry. In this framework, the depth and pose estimations are hierarchically and mutually coupled to refine the estimated pose layer by layer. The intermediate view image is proposed and synthesized by warping the pixels in an image with the estimated depth and coarse pose. Then, the residual pose transformation can be estimated from the new view image and the image of the adjacent frame to refine the coarse pose. The iterative refinement is implemented in a differentiable manner in this paper, making the whole framework optimized uniformly. Meanwhile, a new image augmentation method is proposed for the pose estimation by synthesizing a new view image, which creatively augments the pose in 3D space but gets a new augmented 2D image. The experiments on KITTI demonstrate that our depth estimation achieves state-of-the-art performance and even surpasses recent approaches that utilize other auxiliary tasks. Our visual odometry outperforms all recent unsupervised monocular learning-based methods and achieves competitive performance to the geometry-based method, ORB-SLAM2 with back-end optimization. Copyright © 2021, The Authors. All rights reserved.

关键词： Robots

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Deep learning enabled smart charging technology for electric vehicles

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AIP Conference Proceedings 2022年第1期2527卷

作者： T. Blesslin Sheeba C. Sharanya C. Nayanatara S. K. Indumathi K. Kalins G. Ignisha Rajathi 1Department of ECE R.M.K. Engineering College Chennai India 2Department of ECE Vels Institute of Science Technology and Advanced Studies Chennai India 3Department of EEE Sri Sairam Engineering College Chennai India 4Centre for Automation and Robotics Hindustan Institute of Technology and Science Chennai India 5Department of Science and Humanities Sri Krishna College of Engineering and Technology Coimbatore India 6Department of Computer Science and Business Systems Sri Krishna College of Engineering and Technology Coimbatore India

Reliability, efficiency, and cost-effectiveness of smart grids are enhanced with power demand softening by means of efficient load management in electric vehicles. In such initiatives, the involvement of EV users may reduce due to the lack of adaptable user-centric approaches. During the connection sessions, the EV charging time is determined using a deep learning algorithm-based smart charging strategy proposed in this paper. Here, the total energy cost of the vehicle is minimized by making charging decisions considering demand time series, pricing, environment, driving, and other auxiliary data. The memorization technique is used for the estimation of the optimal solution of the existing connection sessions in the initial stage. The deep learning models are trained with this existing data and optimal decisions to make suitable decisions in real-time scenarios where car usage or future energy price values are undetermined. A significant reduction in the charging cost is observed by training the neural network with the proposed model. The results obtained are compared to the optimal charging costs computed and are found to be closely similar.

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Control of modified robotic system for mechanical processing of parts

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AIP Conference Proceedings 2022年第1期2449卷

作者： Metody G. Georgiev Dilyana N. Gospodinova K. G. Milanov Alexandra N. Georgieva 2Department of Industrial Automation Faculty of Automatics Technical University – Sofia Sofia Bulgaria 8 Kliment Ohridski Blvd. 1Department of Electrical Apparatus Faculty of Electrical Engineering Technical University – Sofia Sofia Bulgaria 8 Kliment Ohridski Blvd.

Paper introduces the industrial robot control system. This paper focuses on the hardware structure of the open industrial robot control system. The paper analyzes design concepts for up-to-date robot manipulator control systems. Approaches to building hardware architecture is described. The control's primary objective is to ensure that the robot retains the desired dynamic behaviour. The use of a PID controller to operate a robot manipulator is critical in industrial automation. A new control system with control cabinet is designed. The cabinet includes modified PID controller, low-voltage switchgear and protective devices, frequency converters (softstarters) and PLC.

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Design of a DSLM-based cerebral palsy action rehabilitation training system

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High Technology Letters 2020年第3期26卷 342-348页

作者： Lu Zhenli Ma Zhipeng Shen Xuanlin Borovac Branislav Liu Yan Shan Changkao Wang Hong Zhao Yu Koumiana ilieva Bojan Nemec Maijan Memik School of Electrical Engineering and Automation Changshu Institute of TechnologyChangshu 215500P.R.China China University of Mining and Technology Xuzhou 221116P.R.China Department of Rehabilitation Medicine Changshu No.2 People HospitalChangshu 215500P.R.China Faculty of Technical Sciences University of Novi Sad21000-Novi SadSerbia School of Business Changshu Institute of TechnologyChangshu 215500P.R.China Faculty of Management Technical University of SofiaSofia 1000Bulgaria Department of Automatics Biocybemetics and RoboticsJozef Stefan InstituteLjubljanalOOOSlovenia University of Maribor Maribor 2000Slovenia

Based on domain specified language mechanism(DSLM),the architecture of the robotic training system for the rehabilitation of children with cerebral palsy(CP)is *** of human-computer interaction(HCI)motion recognition technology is combined with Kinect to improve the effect of cerebral palsy rehabilitation *** this system,Kinect's bone recognition method is used to judge the patient's training movements,and the collected bone movement information is *** human-computer interaction function is based on the Microsoft foundation classes function of Visual Studio based on DSLM development,which can realize real-time interactive training and evaluation of people and actions,and record the training information of *** system combines the designed small game to train the upper limb movement ability and reaction ability of the cerebral palsy patient,and provides key technology for improving the cerebral palsy rehabilitation training system.

关键词： domain specified language mechanism(DSLM) robot-assistant system humancomputer interaction(HCI) cerebral palsy rehabilitation training

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engineering a Wide Range Band-Gap of Anatase TiO2 Via Easy-Controlled Solvothermal Method

SSRN

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SSRN 2024年

作者： Mulyanti, Budi Anshar, Aghisna Nuthfah Hasanah, Lilik Wulandari, Chandra Pawinanto, Roer Eka Hamidah, Ida Berhanuddin, Dilla D. A., Rusydi Study Program of Electrical Engineering Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi 229 Jawa Barat Bandung40154 Indonesia TVET Research Center Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi 229 Jawa Barat Bandung40154 Indonesia Study Program of Physics Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi 229 Jawa Barat Bandung40154 Indonesia Study Program of Industrial Automation and Robotics Engineering Education Universitas Pendidikan Indonesia Jl. Dr..Setiabudhi 229 Jawa Barat Bandung40154 Indonesia Study Program of Automotive Engineering Education Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi 229 Jawa Barat Bandung40154 Indonesia Research Complex Universiti Kebangsaan Malaysia Level 4 Selangor Bangi43600 Malaysia Department of Physics National University of Singapore 2 Science Drive 3 Singapore117542 Singapore Singapore Synchrotron Light Source National University of Singapore 5 Research Link Singapore117603 Singapore

Titanium dioxide (TiO2) is a semiconductor material with many applications, such as surface-enhanced Raman spectroscopy (SERS), photocatalysts, water treatment, and photoelectrochemicals. Controlling the properties of anatase TiO2 is typically challenging during TiO2 synthesis. Generally, achieving this control necessitates intricate conditions and processes. The solvothermal method is expected to be easier to control the formation of TiO2 with well-defined morphology and good crystallinity, hence, the band gap can be tuned well. However, there has been a lack of research on the effect of solvents in the solvothermal method of TiO2 synthesis on the optical band gap. Herewith, we report an easy-controlled solvothermal method by varying the type and composition of the solvent to modify the band gap of anatase TiO2. Interestingly, ultraviolet-visible (UV-Vis) analysis reveals an anatase TiO2 optical band gap between 1.66 to 3.60 eV, indicating that TiO2 obtained can be operated in the UV to visible light region. The solvents utilized for the titanium (IV) isopropoxide (TTIP) precursor in TiO2 synthesis are isopropanol (IPA), methanol (META), and ethanol (ETA). X-ray diffraction, Raman spectroscopy, and scanning electron microscopy show anatase TiO2 single crystalline phases synthesized by IPA and ETA solvents and the combination of polycrystalline and amorphous morphology TiO2 synthesized by META solvent. Anatase single crystalline phases are achieved for the solvent mixture with a composition ratio of IPA:ETA solvents of 1:2, 1:1, and 2:1. Our result shows that the optical band gap of single crystalline phase TiO2 can be engineered in a wide range via solvothermal method for green and sustainable material. © 2024, The Authors. All rights reserved.

关键词： Titanium dioxide

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