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计算机视觉技术在规模化猪场应用的研究进展

中国兽医杂志 2024年第2期60卷 101-106页

作者：邓永涛陈希文绵阳师范学院动物疫病防控与健康养殖工程技术研究中心四川绵阳621000 四川生猪重大疫病监测与防控工程研究中心四川绵阳621000

作为人工智能的一个主要分支,计算机视觉技术在许多领域取得了很大的成就,其在规模化猪场中的应用将为猪场带来产业性的变革。计算机视觉技术可以大幅度减少规模化猪场中人员工作量,同时使猪场对生猪的相关判断更加准确。本文简述了规... 详细信息

作为人工智能的一个主要分支,计算机视觉技术在许多领域取得了很大的成就,其在规模化猪场中的应用将为猪场带来产业性的变革。计算机视觉技术可以大幅度减少规模化猪场中人员工作量,同时使猪场对生猪的相关判断更加准确。本文简述了规模化猪场的现状和计算机视觉技术,重点综述了计算机视觉技术在规模化猪场中对猪只的行为监测、疾病预测、情感状态分析、猪只判别、生产管理、生物安全和防疫以及企业的落地探索等方面的研究进展,以期为促进我国规模化猪场的现代化和智能化发展提供参考。

关键词：计算机视觉技术规模化猪场行为监测疾病预测猪只判别

Active{1121}and{1012}extension twinning in a WE43 Mg alloy

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Journal of Materials science & Technology 2023年第13期144卷 93-101页

作者： W.Q.Chen s.deng X.J.Zhao s.N.Luo Key Laboratory of Advanced Technologies of Materials Ministry of EducationSouthwest Jiaotong UniversityChengdu 610031China The Peac Institute of Multiscale sciences Chengdu 610031China

Deformation twinning in a WE43 alloy subjected to uniaxial compression at room temperature is ***{1121}and{1012}extension twinning is *** activation of{1121}twinning in a certain grain is influenced not only by its own schmid factor,but also by that of the basal ***-twin interactions of the co-zone{1121}twin variants are commonly observed and systematically studied,including the crystallographic characteristics of the four typically observed twin-twin junctions(TTJs)and the associated twin-twin *** the quilted-looking TTJs formed by the interaction of co-zone{1012}twin variants,crossing-like TTJs of co-zone{1121}twin variants are observed and their formation mechanisms are ***-like TTJs are also formed by the interaction of{1121}and{10¯12}*** morphology and thickening rate of{1121}and{1012}twins vary markedly due to the difference in twinning *** needle-like{1121}twins thicken more slowly than the lenticular{1012}*** nucleation is observed on the previously formed{1121}twin boundary due to the relatively large strain concentration on such interface,while twin nucleation on{1012}twin boundary is rarely observed.

关键词： Mg alloy Plastic deformation Twinning Twin-twin interaction Twin-twin junction

deng XIAOPING's OUTLOOK ON sTATE INTEREsT

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Contemporary International Relations 1994年第12期4卷 1-10页

作者： Yan Xuetong Deputy Director,Centre for China’s Foreign Policy studies,China Institute of Contemporary International Relations.

At the very beginning of the founding of New China,the Chinese leaders clearlydefined the relationship of diplomatic work to state *** the inaugura-tion ceremony of China’s Ministry of Foreign Affairs in November 1949,PremierZhou Enlai declared that diplomatic work should be responsible for defending *** that,the Chinese leaders’concept of state interest developed

关键词： diplomatic ceremony interests founding beginning restore turmoil pursue settle territory

Performance of physical-informed neural network (PINN) for the key parameter inference in Langmuir turbulence parameterization scheme

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Acta Oceanologica sinica 2024年第5期43卷 121-132页

作者： Fangrui Xiu Zengan deng school of Marine science and Technology Tianjin UniversityTianjin 300072China

The stokes production coefficient(E_(6))constitutes a critical parameter within the Mellor-Yamada type(MY-type)Langmuir turbulence(LT)parameterization schemes,significantly affecting the simulation of turbulent kinetic energy,turbulent length scale,and vertical diffusivity coefficient for turbulent kinetic energy in the upper ***,the accurate determination of its value remains a pressing scientific *** study adopted an innovative approach by leveraging deep learning technology to address this challenge of inferring the E_(6).Through the integration of the information of the turbulent length scale equation into a physical-informed neural network(PINN),we achieved an accurate and physically meaningful inference of E_(6).Multiple cases were examined to assess the feasibility of PINN in this task,revealing that under optimal settings,the average mean squared error of the E_(6) inference was only 0.01,attesting to the effectiveness of *** optimal hyperparameter combination was identified using the Tanh activation function,along with a spatiotemporal sampling interval of 1 s and 0.1 *** resulted in a substantial reduction in the average bias of the E_(6) inference,ranging from O(10^(1))to O(10^(2))times compared with other *** study underscores the potential application of PINN in intricate marine environments,offering a novel and efficient method for optimizing MY-type LT parameterization schemes.

关键词： Langmuir turbulence physical-informed neural network parameter inference

Energy Management of Price-maker Community Energy storage by stochastic Dynamic Programming

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CsEE Journal of Power and Energy systems 2024年第2期10卷 492-503页

作者： Lirong deng Xuan Zhang Tianshu Yang Hongbin sun Yang Fu Qinglai Guo shmuel s.Oren Department of Electrical Engineering Shanghai University of Electric PowerShanghai 200000China Tsinghua-Berkeley shenzhen Institute Tsinghua UniversityShenzhen 518055China Department of Industrial Engineering and Operations Research University of California BerkeleyBerkeleyCAUSA Risk Analytics and Optimization Chair EPFLSwitzerlandand also with Power Systems LaboratoryETH Zurich8092 ZurichSwitzerland state Key Laboratory of Power systems Department of Electrical EngineeringTsinghua UniversityBeijing 100084China

In this paper,we propose an analytical stochastic dynamic programming(sDP)algorithm to address the optimal management problem of price-maker community energy *** a price-maker,energy storage smooths price differences,thus decreasing energy arbitrage ***,this price-smoothing effect can result in significant external welfare changes by reduc-ing consumer costs and producer revenues,which is not negligible for the community with energy storage *** such,we formulate community storage management as an sDP that aims to maximize both energy arbitrage and community *** incorporate market interaction into the sDP format,we propose a framework that derives partial but sufficient market information to approximate impact of storage operations on market *** we present an analytical sDP algorithm that does not require state *** from computational efficiency,another advantage of the analytical algorithm is to guide energy storage to charge/discharge by directly comparing its current marginal value with expected future marginal *** studies indicate community-owned energy storage that maximizes both arbitrage and welfare value gains more benefits than storage that maximizes only *** proposed algorithm ensures optimality and largely reduces the computational complexity of the standard *** Terms-Analytical stochastic dynamic programming,energy management,energy storage,price-maker,social welfare.

关键词： Analytical stochastic dynamic programming energy management energy storage price-maker social welfare

In-Plane Dynamic Crushing Behaviors of a Vertex-Based Hierarchical Auxetic Honeycomb

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Acta Mechanica solida sinica 2024年第1期37卷 53-62页

作者： Yichen Zan Xiuhui Hou Zichen deng school of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi'an 710072China MIIT Key Laboratory of Dynamics and Control of Complex systems Northwestern Polytechnical UniversityXi'an 710072China school of Aeronautics Northwestern Polytechnical UniversityXi'an 710072China state Key Laboratory of structural Analysis Optimization and CAE Software for Industrial EquipmentDalian University of TechnologyDalian 116024China

Auxetic metamaterials,which exhibit the negative Poisson’s ratio(NPR)effect,have found wide applications in many engineering ***,their high porosity inevitably weakens their bearing capacity and impact *** improve the energy absorption efficiency of auxetic honeycombs,a novel vertex-based hierarchical star-shaped honeycomb(VsH)is designed by replacing each vertex in the classical star-shaped honeycomb(ssH)with a newly added self-similar *** analytical model is built to investigate the Young’s modulus of VsH,which shows good agreement with experimental results and numerical *** in-plane dynamic crushing behaviors of VsH at three different crushing velocities are investigated,and empirical formulas for the densification strain and plateau stress are *** results reveal more stable deformation modes for VsH,attributed to the addition of self-similar star-shaped ***,compared with ssH under the same relative densities,VsH exhibits better specific energy absorption and higher plateau ***,VsH is verified to be a better candidate for energy absorption while maintaining the auxetic *** study is expected to provide a new design strategy for auxetic honeycombs.

关键词： Vertex-based hierarchical star-shaped honeycomb Auxetic honeycomb Energy absorption Plateau stress Negative Poisson's ratio

A Data Intrusion Tolerance Model Based on an Improved Evolutionary Game Theory for the Energy Internet

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Computers, Materials & Continua 2024年第6期79卷 3679-3697页

作者： song deng Yiming Yuan Institute of Advanced Technology Nanjing University of Posts and TelecommunicationsNanjing210003China College of Automation Nanjing University of Posts and TelecommunicationsNanjing210003China

Malicious attacks against data are unavoidable in the interconnected,open and shared Energy Internet(EI),Intrusion tolerant techniques are critical to the data security of *** intrusion tolerant techniques suffered from problems such as low adaptability,policy lag,and difficulty in determining the degree of *** address these issues,we propose a novel adaptive intrusion tolerance model based on game theory that enjoys two-fold ideas:(1)it constructs an improved replica of the intrusion tolerance model of the dynamic equation evolution game to induce incentive weights;and (2)it combines a tournament competition model with incentive weights to obtain optimal strategies for each stage of the game *** experiments are conducted in the IEEE 39-bus system,whose results demonstrate the feasibility of the incentive weights,confirm the proposed strategy strengthens the system’s ability to tolerate aggression,and improves the dynamic adaptability and response efficiency of the aggression-tolerant system in the case of limited resources.

关键词： Energy Internet Intrusion tolerance game theory racial competition adaptive intrusion response

In situ sulfur-doped mesoporous tungsten oxides for gas sensing toward benzene series

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Chinese Chemical Letters 2024年第7期35卷 502-507页

作者： Yu deng Yan Liu Yonghui deng Jinsheng Cheng Yidong Zou Wei Luo state Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Department of Chemistry State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsiChEMFudan UniversityShanghai 200433China Department of Polymeric Materials School of Materials Science and EngineeringTongji UniversityShanghai 201804China Henry-Fork school of Food sciences Shaoguan UniversityShaoguan 512005China state Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

Benzene series as highly toxic gases have inevitably entered human life and produce great threat to human health and ecological environment,and thus it is distinctly meaningful to monitor benzene series with quickly,real-time and efficient ***,novel sulfur-doped mesoporous WO_(3)materials were synthesized via classical in-situ solvent evaporation induced co-assembly strategy combined with doping engineering,which possessed highly crystallized frameworks,high specific surface area(40.9–63.8 m^(2)/g)and uniform pore size(~18 nm).Benefitting from abundant oxygen vacancy and defects via s-doping,the tailored mesoporous s/m WO_(3)exhibited excellent benzene sensing performance,including high sensitivity(50 ppm vs.48),low detection limit(ca.500 ppb),outstanding selectivity and favorable *** addition,the reduction of band gap resulted from s-doping promotes the carrier migration in the sensing materials and the reaction at the gas–solid sensing *** provides brand-new approach to design sensitive materials with multiple reaction sites.

关键词： Mesoporous materials Benzene series Tungsten oxides sulfur doping Gas sensor

Liquid-like polymer lubricating surfaces:Mechanism and applications

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Nano Research 2024年第2期17卷 476-491页

作者： Dagui Wang Jinglong Yang Junchang Guo Zhijuan Duan Deihui Wang Fan Xia Fei deng Xu deng Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001China Institute of Fundamental and Frontier sciences University of Electronic Science and Technology of ChinaChengdu 610054China state Key Laboratory of Biogeology and Environmental Geology Engineering Research Center of Nano-Geomaterials of Ministry of EducationFaculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430070China Department of Nephrology Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengdu 610054China Department of Nephrology Sichuan Provincial People’s Hospital Jinniu HospitalChengdu Jinniu District People’s HospitalChengdu 610054China shenzhen Institute for Advanced study University of Electronic Science and Technology of ChinaShenzhen 518110China

Liquid-like polymer lubricating surfaces(LPLss)are solid substrates with highly flexible polymer chains grafted via covalent *** unique modification enables ultralow contact-angle hysteresis,repellency of various liquids and bulk ice,and *** distinctive wettability and universality of LPLss have potential applications in liquid motion,biological detection,and environmental *** this review,we summarize the mechanisms,preparation,and applications of *** discuss the wettability and lubrication mechanisms of liquid droplets on *** then categorize LPLs fabrication into“grafted onto”and“grafted from”groups,depending on the type of *** highlight representative applications with recent developments in anti-complex liquid,anti-icing,anti-biological adhesions,biosensing,and photocatalytic ***,we discuss future challenges and outlooks for LPLss.

关键词： liquid-like polymer surface lubricating wettability