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A Functionalized Multi-walled Carbon Nanotube and Gold Nanoparticle Composite-modified Glassy Carbon Electrode for the Detection of Enterovirus 71

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Biomedical and Environmental Sciences 2019年第7期32卷 541-545页

作者： CHENG Jing KOU Jing FAN Zhao Yu HAN Yi Qun MEI Yong GUO Zhen Zhong ZHAN Jian Bo School of Public Health Medical College Wuhan University of Science and Technology Wuhan 430065 Hubei China Hubei Province Key Laboratory of Occupational Hazard Identification and Control Wuhan University of Science and Technology Wuhan 430065 Hubei China Institute of health inspection and testing Hubei Provincial Center for Disease Control and Prevention Wuhan 430079 Hubei China

Hand, foot, and mouth disease (HFMD) is a common infectious disease in children, occurring primarily in preschool children[1_3] with infants under three years old being gen erally susceptible. The disease is caused by various enteroviruses, among which EV71 and Coxsackievirus A group 16 (Cox A16) are the most comm on ⑷.According to in formation released by the Chinese Center for Disease control and Prevention on June 8, 2016, EV71 infection- related HFMD has been prevalent among infants and young children in China since 2007, with a high incidenee and many deaths.

关键词： Glassy Carbon Electrode Detection of Enterovirus

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Study on the Wet Oxidation of an Industrial High Concentration Caprolactam Organic Wastewater

Study on the Wet Oxidation of an Industrial High Concentrati...

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2019 International Conference on Oil and Gas Engineering and Geological Sciences, OGEGS 2019

作者： Guo, Pengfei Wang, Li Zeng, Xu Yao, Guodong Zhou, Yangyuan Zhao, Jianfu College of Environmental Science and Engineering State Key Laboratory of Pollution Control and Resources Reuse Tongji University Shanghai China Shanghai Institute of Measurement and Testing Technology Shanghai China

In this study, wet oxidation of an industrial high concentration caprolactam organic wastewater using oxygen gas as an oxidant was investigated. Different experiments were conducted to discuss the effects of the reaction temperature, time, the initial oxygen pressure and dilution ration of raw wastewater, using a batch reactor with COD removal rate as a standard for assessing. Results show that the highest removal rate of COD, 76.6%, was obtained at 250 °C for 30 min with the oxygen pressure 1.7 MPa and dilution ration 10. The biodegradability of the wastewater improved greatly after the wet oxidation process. These results illustrated that wet oxidation with oxygen gas as an oxidant displayed effectively for the pretreatment of high concentration caprolactam organic wastewater. © 2019 IOP Publishing Ltd.

关键词： Oxidants

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VRAS: A virtual rehearsal assistant system for live performance 2nd

VRAS: A virtual rehearsal assistant system for live performa...

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2nd International Conference on Smart Vehicular technology, Transportation, Communication and Applications, VTCA 2018

作者： Wu, Yufeng Ding, Gangyi Li, Hongsong Xue, Tong Jiao, Di Huang, Tianyu Zhang, Longfei Zhang, Fuquan Xu, Lin Digital Performance and Simulation Key Laboratory School of Computer Science and Technology Beijing Institute of Technology Beijing100081 China Fujian Provincial Key Laboratory of Information Processing and Intelligent Control Minjiang University Fuzhou350121 China Key Laboratory of Nondestructive Testing Fuqing Branch of Fujian Normal University Fuzhou350300 China

ISBN: (纸本)9783030045845

The VR technologies are widely adopted for training purposes by providing the users with educational virtual experience. In this work, we propose an immersive VR system that help the choreographers and the dancers to facilitate their dance rehearsal experience. The system integrates motion capture devices and head-mounted displays (HMDs). The motions of the dancers, their partners, and the choreographers are captured and projected into a virtual dancing scene in an interactive frame rate. The dancers who are wearing the HMDs, are allowed to observe the synthesized virtual performances within a virtual stage space from several selected third-person views. These are the audience’s view, the dancing partner’s view, and the choreographer’s view. Such synthesized external self-images augment dancer’s perception of their dance performance and their understanding of the choreography. Feedbacks from the participants indicate the proposed system is effective and the preliminary experimental results agree with our observations. © Springer Nature Switzerland AG 2019.

关键词： Helmet mounted displays

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Development of colorimetric immunochromatographic assay based on different morphologies of gold nanoparticles for the detection of triadimefon

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Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2025年 343卷

作者： Sa Dong Yu Zhang Qiuyun Shi Zixin Zhu Yulong Wang Ruifeng Luo Jianguo Feng College of Plant Protection Yangzhou University Yangzhou 225009 Jiangsu PR China Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality Ministry of Agriculture Institute of Food Safety and Nutrition Jiangsu Academy of Agricultural Sciences Nanjing 210014 Jiangsu PR China Food Quality Supervision and Testing Center of Ministry of Agriculture Xinjiang Academy of Agricultural and Reclamation Science Shihezi 832000 Xinjiang PR China

Triadimefon (TDF) is a highly effective, low toxicity, broad-spectrum triazole fungicide with strong systemic absorption. Excessive residues in tobacco and vegetables can affect human health. Therefore, it is urgent to establish a simple, rapid, and sensitive detection method for residual analysis of TDF in tobacco and vegetables. In this study, colloidal gold nanoparticles (Au NPs), gold nanoflowers (Au NFs), and gold nanorods (Au NRs) were synthesized and combined with anti-TDF monoclonal antibodies (mAb) to prepare probes for immunochromatographic strips (ICS). The lowest visual detection limits (vLODs) of the test strips using AuNPs-mAb, AuNFs-mAb, and AuNRs-mAb as probes were 7.8, 15.6, and 15.6 ng/mL, respectively. The three test strips showed no significant cross reactivity with the four structural analogues of tebuconazole, hexaconazole, myclobutanil, and difenoconazole, indicating that all three test strips have good specificity. To assess the presence of 0 and 62.5 ng/mL of TDF, ten test strips were used, and the results showed perfect accuracy with no false positives or false negatives. In addition, three test strips (same batch) were utilized to detect TDF (0 and 62.5 ng/mL) after storage for three months, and the results were still accurate, indicating that all three kinds of test strips have good repeatability and stability. The addition and recovery tests of TDF were conducted on cucumber and tobacco leaf samples (0, 2.5, 17.5, and 65 μg/kg), and the test results revealed that the strips performed with high accuracy. This study established three colorimetric test strips based on three different morphologies of gold nanoparticles, which possess the benefits of quick processing times, high cost-effectiveness, and minimal technical requirements, making them suitable for rapid on-site qualitative detection of TDF.

关键词： Gold nanoflowers Gold nanoparticles Gold nanorods Immunochromatographic strip Monoclonal antibody Triadimefon

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Organophosphate esters and their transformation products in megacity atmospheres: Size-dependent gas-particle partitioning and transformation potential

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Journal of hazardous materials 2025年 494卷 138708页

作者： Chun-Xue Tang Min-Qi Tang Chen-Chou Wu Cheng Li Ming-Hong Cai Lian-Jun Bao Eddy Y Zeng Guangdong Key Laboratory of Environmental Pollution and Health Jinan University Guangzhou 511443 China. Institute of Quality Standard and Testing Technology Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 China. Ministry of Natural Resources Key Laboratory for Polar Science Polar Research Institute of China Shanghai 200136 China School of Oceanography Shanghai Jiao Tong University Shanghai 200030 China. Guangdong Key Laboratory of Environmental Pollution and Health Jinan University Guangzhou 511443 China. Electronic address: baolianjun@***. Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education) School of Environment and Energy South China University of Technology Guangzhou 510006 China.

The size-dependent gas-particle partitioning of transformation products (TPs) from organophosphate esters (OPEs) and the transform potential for OPEs to TPs in ambient atmosphere remain under-investigated. To fill this knowledge gap, we analyzed gaseous and size-fractionated particle samples collected from Beijing, Shanghai, and Guangzhou in China under different meteorological conditions. The concentrations of OPEs were comparable to those in other major cities worldwide, but the levels of TPs were lower than those in these cities. The Li-Ma-Yang model predicted well the size-fractionated gas-particle partition coefficients (K) of OPEs and TPs with log K > 9.1. Multiple linear regression model incorporating relative humidity narrowed the gap between predicted and observed K of OPEs with log K < 9.1, but still underestimated the K values. Hence, humidity-dependent water film adsorption and transformation of these OPEs should be included in future gas-particle partition modeling, especially in fine particles. Size distributions in concentration ratios of nine pairs of OPE to TP were not unified. Temperature exhibited negative effects on gas-particle partitioning of TPs, and inhibited the transformation of tris(2-chloropropyl) phosphate (TCIPP) to bis(1-chloro-2-propyl) phosphate (BCIPP) and triphenyl phosphate (TPhP) to 4-hydroxyphenyl diphenyl phosphate (4-OH-DPHP) in the particulate phase. Gaseous TPs contributed more to the human inhalation health risks of OPEs than particle-bound TPs. These findings are significant for comprehending the fate of atmospheric TPs in urban environment. ENVIRONMENTAL IMPLICATION: Transformation products (TPs) of organophosphate esters (OPEs) exhibit comparable or even enhanced toxicity relative to OPEs, but their atmospheric behavior remains incompletely understood. In the present study, gaseous and size-fractionated particulate samples were collected in Beijing, Shanghai, and Guangzhou to explore the gas-particle partitioning behavio

关键词： Ambient air Human health risk Organophosphate diester Size-fractionated ratio Transformation product

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Fruit detection using faster R-CNN based on deep network 2nd

Fruit detection using faster R-CNN based on deep network

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2nd International Conference on Smart Vehicular technology, Transportation, Communication and Applications, VTCA 2018

作者： Ma, Linjuan Zhang, Fuquan Xu, Lin School of Computer Science and Technology Beijing Institute of Technology Beijing100081 China Fujian Provincial Key Laboratory of Information Processing and Intelligent Control Minjiang University Fuzhou350121 China Key Laboratory of Nondestructive Testing Fuqing Branch of Fujian Normal University Fuzhou350300 China

ISBN: (纸本)9783030045845

Fruit detection is of great significance in the agriculture. Recently, deep neural network has been widely studied in fruit detection. In our paper, we present a new approach of fruit detection, which uses Faster R-CNN based on deep network AlexNet. Our aim is to develop a fast, accurate and convenient model to detect and classify the fruit. Data augmentation is also used to increase the fruit dataset and avoid the overfitting in some degree. We use the fruits-360 dataset to perform the experiments. © Springer Nature Switzerland AG 2019.

关键词： Deep neural networks

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Dynamic Balance and Trajectory Tracking control of Quadruped Robots Based on Virtual Model control

Dynamic Balance and Trajectory Tracking Control of Quadruped...

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第三十九届中国控制会议

作者： Guangrong Chen Bowen Hou Sheng Guo Junzheng Wang Robotics Research Center Beijing Jiaotong University Beijing Engineering and Technology Research Center of Rail Transit Line Safety and Disaster Prevention State Key Laboratory of Intelligent Control and Decision of Complex Systems School of Automation Beijing Institute of Technology

As for a motion control framework of robots, virtual model control（VMC） can use virtual components to create virtual forces/torques. Actually, the virtual forces/torques are generated by joint actuators when the virtual components interact between robots and environments. In this paper, a virtual model control is proposed to do the dynamic balance control of quadruped robots in trot gait. In each leg, virtual model control includes swing phase control of robots and stance phase counterparts. In whole body, based on the forces/torques distribution method between two stance legs, virtual model control is mainly about the attitude control containing roll, pitch and yaw. Then, an intuitive approach of velocity control is employed for the locomotion of quadruped robots. Based on the velocity planning and control, a trajectory tracking control approach is investigated by considering four factors: terrain complexity index, curvature radius of given trajectory, distance to terminal, and maximum velocity of quadruped robots. Finally, the effectiveness of proposed controllers is validated by co-simulations.

关键词： Virtual model control Dynamic balance control Trajectory tracking control Quadruped robots

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Corrigendum to “Constructing atomic surface concaves on Bi 5 O 7 Br nanotube for efficient photocatalytic CO 2 reduction” [Nano Energy 109 (2023) 108305]

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Nano Energy 2024年 119卷

作者： Yang Wang Kaiwen Wang Jiazhi Meng Chaogang Ban Youyu Duan Yajie Feng Shaojie Jing Jiangping Ma Danmei Yu Liyong Gan Xiaoyuan Zhou College of Physics and Center of Quantum Materials and Devices Chongqing University Chongqing 401331 China Beijing Key Laboratory of Microstructure and Property of Advanced Materials Beijing University of Technology Beijing 100024 China School of Chemistry and Chemical Engineering Chongqing University Chongqing 401331 China State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing University Chongqing 401331 China Donghai Laboratory Zhoushan Zhejiang 316021 China Analytical and Testing Center Chongqing University Chongqing 401331 China

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A Guide for Human Walking Model and control——Insights from Mechanical Property Analysis of Human Walking

A Guide for Human Walking Model and Control——Insights from...

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第32届中国控制与决策会议

This paper aims to establish the simplest human walking model and provide a guide for controlling biped ***,a human motion capture system was utilized to sample the motion data of human walking and a representative subject was ***,one of the simplest human walking model was set *** mechanical property analysis of human walking was done based on the established walking model via ***,the feasibility and effectiveness of proposed walking model were validated by numerical ***,the intrinsical relationships among human walking,biped walking model and control were discussed to provide a guide and insight for controlling biped robots.

关键词： Human Walking Model Biped Robots Leg Stiffness Legged Locomotion Model and control

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The Influence of Down Conductor Torsion on the Mechanical Properties of the Main Transformer End of Substation

The Influence of Down Conductor Torsion on the Mechanical Pr...

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International Conference on High Voltage Engineering and Application, ICHVE

作者： Kai Xie Yaguang Tao Jinyang Wang Xiangyu Huo Zhuli Liu Henan Key Laboratory of Power Transmission Line Galloping Prevention and Control Technology State Grid Henan Electric Power Research Institute Henan China School of Mechanical and Power Engineering Zhengzhou University Henan China

ISBN: (数字)9781728155111

ISBN: (纸本)9781728155128

Four-bundle down conductor is prone to additional torsion in the installation process of it, which may affect the safety and stability of the end of bushing. In this paper, the down conductor of the main transformer bushing is taken as the research object, and ABAQUS as the platform. A fined finite element model is established to analyze the mechanical influence of the twisting method and twisting angle of the down conductor on the end of main transformer bushing. The results suggest that the stress of the bushing terminal and the terminal board increases non-linearly with the increase of the down conductor around its centerline or overall torsion; When the torsion angle is greater than 5°, the stress of the parts increases greatly, and the torsion angle should be controlled. The results of this paper lay the foundation for further optimizing the installation method of the main transformer bushing and improving the installation accuracy during the construction installation process.

关键词： Insulators Conductors Stress Finite element analysis Clamps Arresters Substations

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