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mproved Hydrogen Storage Properties of Ti_(23)V_(40)Mn_(37)Alloy Doped with Zr_(7)Ni_(10) by Rapid Solidification

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Acta Metallurgica Sinica(English Letters) 2023年第7期36卷 1211-1219页

作者： Zhenyu Feng Hong Zhong bin yang Xin Li Shuangming Li State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an710072China Inner Mongolia Metal Material Research Institute Yantai264003China School of Materials Engineering Xi’an Aeronautical UniversityXi’an710077China

As-cast and rapidly solidified Ti_(23)V_(40)Mn_(37)alloy doped with Zr_(7)Ni_(10) was synthesized by arc melting and *** microstructure,activation property,hydrogen absorption kinetics,and hydrogen absorption/desorption thermodynamics were investigated to evaluate a comprehensive hydrogen storage property of the *** preparation methods had a negligible effect on the lattice parameter of BCC and C14 Laves phases in the *** alloy prepared by melt-spinning showed an increased proportion of BCC phase,larger hydrogen absorption capacity,faster hydrogen absorption rate,and higher hydrogen absorption/desorption platform *** dehydriding enthalpy and endothermic peak temperature of the rapidly solidified alloy were 33.55±2.14 KJ/mol H_(2)and 526.2 K,respectively,which are smaller than those of the as-cast *** indicates the decreased hydride stability and improved hydrogen desorption *** contrast with the as-cast alloy,the rapidly solidified alloy showed a preferable comprehensive hydrogen storage property.

关键词： Rapid solidification Microstructure Hydrogen absorption kinetics Hydrogen desorption property

Control of myoelectric prosthetic hand with a novel proximity-tactile sensor

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Science China(Technological Sciences) 2022年第7期65卷 1513-1523页

作者： yang bin JIANG Li GE Chuanyang CHENG Ming ZHANG Jia State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin 150080China Key Laboratory of Microsystems and Microstructure Manufacturing Ministry of Education Harbin Institute of TechnologyHarbin 150080China

Currently, prosthetic hands can only achieve several prespecified and discrete hand motion patterns from popular myoelectric control schemes using electromyography(EMG) signals. To achieve continuous and stable grasping within the discrete motion pattern, this paper proposes a control strategy using a customized, flexible capacitance-based proximity-tactile sensor. This sensor is integrated at the fingertip and measures the distance and force before and after contact with an object. During the pregrasping phase, each fingertip’s position is controlled based on the distance between the fingertip and the object to make all fingertips synchronously approach the object at the same distance. Once contact is established, the sensor turns to output the tactile information, by which the contact force of each fingertip is finely controlled. Finally, the method is introduced into the human-machine interaction control for a myoelectric prosthetic hand. The experimental results demonstrate that continuous and stable grasping could be achieved by the proposed control method within the subject’s discrete EMG motion mode. The subject also obtained tactile feedback through the transcutaneous electrical nerve stimulation after contact.

关键词： prosthetic hand proximity tactile sensor myoelectric control sensory feedback

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On Improved DV-Hop Localization Algorithm for Accurate Node Localization in Wireless Sensor Networks

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Chinese Journal of Electronics 2019年第3期28卷 658-666页

作者： SHEN Shikai yang bin QIAN Kaiguo SHE Yumei WANG Wu School of Information and Technology Kunming University School of Mathematics and Computer Science Yunnan Minzu University School of Computer and Information Engineering Chuzhou University

Node Localization is a fundamental issue for many critical applications in Wireless sensor networks(WSNs). Traditional DV-Hop localization algorithm and corresponding improved ones still cannot provide sufficient localization accuracy in such WSNs. To ensure accurate localization, this paper proposes an improved Distancevector-Hop(DV-Hop) localization algorithm. Under such an algorithm, we determine a corrected average hopdistance of beacon nodes by employing the differences between actual and estimated distance among beacon nodes in WSNs. We propose a probability information based selective strategy for the selection of beacon *** on these selected beacon nodes, we adopt a two dimensional hyperbolic function to predict the locations of unknown nodes. Simulation results are provided to illustrate the localization accuracy of our algorithm compared with traditional DV-Hop algorithm and its two improved algorithms in WSNs.

关键词： Wireless sensor networks Node localization Improved Distance-vector-Hop(DV-Hop) localization algorithm Localization accuracy

Occurrence,spatial and seasonal variation,and environmental risk of pharmaceutically active compounds in the Pearl River basin,South China

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Frontiers of Environmental Science & Engineering 2023年第4期17卷 83-95页

作者： Haojun Lei Kaisheng Yao bin yang Lingtian Xie Guangguo Ying SCNU Environmental Research Institute Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety&MOE Key Laboratory of Theoretical Chemistry of EnvironmentSouth China Normal UniversityGuangzhou 510006China School of Environment South China Normal UniversityGuangzhou 510006China Aquatic Ecology and Water Quality Management Group Wageningen University6700 AA WageningenNetherlands

The occurrence,fate,and environmental risk of 40 pharmaceutically active compounds(PhACs)from surface waters and sediments were comprehensively investigated in the Beijiang River,Xijiang River,and Maozhou River of the Pearl River basin,South *** acid and diclofenac(antiinflammatory drugs),gemfibrozil(a lipid regulator),carbamazepine(an antiepileptic drug),diazepam(a psychoactive drug),and 2-methyl-4-chloro-phenoxyacetic acid(MCPA,a pesticide)were the most ubiquitous compounds in the studied *** average concentrations of detected PhACs in surface waters and sediments ranged from 0.17 to 19.1 ng/L and 0.10 to 10.4 ng/g,***,PhACs concentration in surface waters and sediments varied greatly among and within the Beijiang River,Xijiang River,and Maozhou *** largest annual flux of PhACs of the Xijiang River and Beijiang River was more than 11000 kg per annum,whereas only 25.7 kg/a in the Maozhou *** addition,the estimated emissions of PhACs in the Beijiang River,Xijiang River,and Maozhou River ranged respectively from 0.28 to 4.22 kg/a,0.12 to 6.72 kg/a,and 6.66 to 91.0 kg/a,and the backestimated usage varied with a range from 12.0 to 293 kg/a,6.79 to 944 kg/a,368 to 17459 kg/***,the emissions of PhACs showed a close relationship with the gross domestic product(GDP)of each city along the Pearl *** environmental risk assessment suggested that diazepam and ibuprofen had a moderate risk in this region.

关键词： Pharmaceutically active compounds Occurrence Spatiotemporal variations Pearl River Environmental risk assessment

Dynamic Vision-Based Machinery Fault Diagnosis With Cross-Modality Feature Alignment

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IEEE/CAA Journal of Automatica Sinica 2024年第10期11卷 2068-2081页

作者： Xiang Li Shupeng Yu Yaguo Lei Naipeng Li bin yang Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Xi’an Jiaotong UniversityXi’an 710049China IEEE

Intelligent machinery fault diagnosis methods have been popularly and successfully developed in the past decades,and the vibration acceleration data collected by contact accelerometers have been widely *** many industrial scenarios,contactless sensors are more *** event camera is an emerging bio-inspired technology for vision sensing,which asynchronously records per-pixel brightness change polarity with high temporal resolution and low *** offers a promising tool for contactless machine vibration sensing and fault ***,the dynamic vision-based methods suffer from variations of practical factors such as camera position,machine operating condition,***,as a new sensing technology,the labeled dynamic vision data are limited,which generally cannot cover a wide range of machine fault *** at these challenges,a novel dynamic vision-based machinery fault diagnosis method is proposed in this *** is motivated to explore the abundant vibration acceleration data for enhancing the dynamic vision-based model performance.A crossmodality feature alignment method is thus proposed with deep adversarial neural networks to achieve fault diagnosis knowledge *** event erasing method is further proposed for improving model robustness against *** proposed method can effectively identify unseen fault mode with dynamic vision *** on two rotating machine monitoring datasets are carried out for validations,and the results suggest the proposed method is promising for generalized contactless machinery fault diagnosis.

关键词： Condition monitoring domain generalization eventbased camera fault diagnosis machine vision

Synergistic activation of smithsonite with copper-ammonium species for enhancing surface reactivity and xanthate adsorption

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International Journal of Mining Science and Technology 2023年第4期33卷 519-527页

作者： Wenjuan Zhao bin yang Yahui Yi Qicheng Feng Dianwen Liu State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Faculty of Land Resource EngineeringKunming University of Science and TechnologyKunming 650093China Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming 650093China Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources Kunming University of Science and TechnologyKunming 650093China

Copper ions(Cu^(2+))are usually added to activate the sulfidized surface of zinc oxide minerals to enhance xanthate attachment using sulfidization xanthate flotation *** adsorption of Cu^(2+)and xanthate on the sulfidized surface was investigated in various systems,and its effect on the surface hydrophobicity and flotation performance was revealed by multiple analytical methods and experiments.X-ray photoelectron spectroscopy(XPS)and time-of-flight secondary ion mass spectrometry(To F-SIMS)characterization demonstrated that the adsorption of Cu^(2+)on sulfidized smithsonite surfaces increased the active Cu—S content,regardless of treatment in any activation *** sulfidized surface pretreated with NH_(4)^(+)-Cu^(2+)created favorable conditions for the adsorption of more Cu^(2+),significantly enhancing the smithsonite *** potential determination,ultraviolet(UV)-visible spectroscopy,Fourier transform-infrared(FT-IR)measurements,and contact angle detection showed that xanthate was chemically adsorbed on the sulfidized surface,and its adsorption capacity in various systems was illustrated from qualitative and quantitative *** comparison to the Na2S–Cu^(2+)and Cu^(2+)–Na2S–Cu^(2+)systems,xanthate exhibited a higher adsorption capacity on sulfidized smithsonite surfaces in NH_(4)^(+)-Cu^(2+)–Na2S–Cu^(2+)***,activation with Cu^(2+)–NH4+synergistic species prior to sulfidization significantly enhanced the mineral surface hydrophobicity,thereby increasing its flotation recovery.

关键词： Smithsonite surface reactivity Synergistic activation Copper-ammonium species Surface hydrophobicity Enhanced recovery

Expression pattern of mda-7/IL-24 receptors in liver cancer cell lines

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Hepatobiliary & Pancreatic Diseases International 2009年第4期8卷 402-406页

作者： Zhu, Hong yang, Zhi-bin Third Affiliated Hosp Kunming Med Coll Abdominal Canc Ctr Kunming 650102 Peoples R China Second Affiliated Hosp Kunming Med Coll Div Hepatobiliary Kunming 650101 Peoples R China

BACKGROUND: The mda-7/IL-24 receptor belongs to the type 11 cytokine receptor family, and its two heterodimeric receptors are IL-22R1/IL-20R2 and IL-20R1/IL-20R2. Mda-7/IL-24 receptor expression in liver cancer cell lines has not yet been described. This information may be helpful for further clinical gene therapy. METHODS: With normal skin total RNA as template, the cDNA sequences of IL-20R1, IL-20R2 and IL-22R were amplified by RT-PCR. Total RNA was extracted from cultured liver cancer cell lines and a normal liver cell line, then detected by northern blotting, and the expression of mda-7/IL-24 receptors was analyzed. RESULTS: PLC/PRF/5 and SMMC-7721 expressed IL-20R1; BEL-7402, Hep3B, HepG2, and PLC/PRF/5 expressed IL20R2; and HepG2 and PLC/PRF/5 expressed IL-22R. Only HepG2 expressed the IL-22R/IL-20R2 receptor complex. PLC/PRF/5 completely expressed both heterodimeric receptors. Huh-7, QGY-7701 and WRL-68 did not express the IL-24 receptor. CONCLUSION: Complete mda-7/IL-24 receptors are seldom expressed in liver cancer cell lines.

关键词： mda-7 receptor hepatocellular carcinoma apoptosis

Remaining Useful Life Prediction With Partial Sensor Malfunctions Using Deep Adversarial Networks

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IEEE/CAA Journal of Automatica Sinica 2023年第1期10卷 121-134页

作者： Xiang Li Yixiao Xu Naipeng Li bin yang Yaguo Lei IEEE the Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Xi’an Jiaotong UniversityXi’an 710049China Student Member Senior Member

In recent years,intelligent data-driven prognostic methods have been successfully developed,and good machinery health assessment performance has been achieved through explorations of data from multiple ***,existing datafusion prognostic approaches generally rely on the data availability of all sensors,and are vulnerable to potential sensor malfunctions,which are likely to occur in real industries especially for machines in harsh operating *** this paper,a deep learning-based remaining useful life(RUL)prediction method is proposed to address the sensor malfunction problem.A global feature extraction scheme is adopted to fully exploit information of different *** learning is further introduced to extract generalized sensor-invariant *** explorations of both global and shared features,promising and robust RUL prediction performance can be achieved by the proposed method in the testing scenarios with sensor *** experimental results suggest the proposed approach is well suited for real industrial applications.

关键词： Adversarial training data fusion deep learning remaining useful life(RUL)prediction sensor malfunction

Co anchored on porphyrinic triazine-based frameworks with excellent biocompatibility for conversion of CO_(2)in H_(2)-mediated microbial electrosynthesis

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Frontiers of Chemical Science and Engineering 2022年第12期16卷 1761-1771页

作者： Folin Liu Shaohua Feng Siyuan Xiu bin yang yang Hou Lecheng Lei Zhongjian Li College of Chemical and Biological Engineering Key Laboratory of Biomass Chemical Engineering of Ministry of EducationZhejiang UniversityHangzhou 310027China Institute of Zhejiang University—Quzhou Quzhou 324000China Academy of Ecological Civilization Zhejiang UniversityHangzhou 310027China

Microbial electrosynthesis is a promising alternative to directly convert CO_(2)into long-chain compounds by coupling inorganic electrocatalysis with biosynthetic ***,problems arose that the conventional electrocatalysts for hydrogen evolution may produce extensive by-products of reactive oxygen species and cause severe metal leaching,both of which induce strong toxicity toward ***,poor stability of electrocatalysts cannot be qualified for long-term *** problems may result in poor biocompatibility between electrocatalysts and *** solve the bottleneck problem,Co anchored on porphyrinic triazine-based frameworks was synthesized as the electrocatalyst for hydrogen evolution and further coupled with Cupriavidus necator *** showed high selectivity for a four-electron pathway of oxygen reduction reaction and low production of reactive oxygen species,owing to the synergistic effect of Co–Nx modulating the charge distribution and adsorption energy of ***,low metal leaching and excellent stability were observed,which may be attributed to low content of Co and the stabilizing effect of ***,the electrocatalyst exhibited excellent ***,the microbial electrosynthesis system equipped with the electrocatalyst successfully converted CO_(2)to poly-β-*** work drew up a novel strategy for enhancing the biocompatibility of electrocatalysts in microbial electrosynthesis system.

关键词： microbial electrosynthesis hydrogen evolution reaction metalloporphyrins biocompatibility CO_(2)conversion