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International Journal of Minerals,Metallurgy and Materials 2023年第6期30卷 1207-1216页

作者： Shuai Zhang Yanling zhang Shaowen Wu State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

Augite-based glass ceramics were synthesised using ZnO,FeO,and Fe_(2)O_(3)as additives,and the spinel formation,matrix structure,crystallisation thermodynamics,and physicochemical properties were investigated.The results showed that oxides resulted in numerous preliminary spinels in the glass matrix.FeO,ZnO,and Fe_(2)O_(3)influenced the formation of spinel,while FeO simplified the glass network.FeO and ZnO promoted bulk crystallisation of the parent glass.After adding oxides,the grains of augite phase were refined,and the relative quantities of augite crystal planes were also influenced.All samples displayed good mechanical properties and chemical stability.The 2wt%ZnO-doping sample displayed the maximum flexural strength(170.3 MPa).Chromium leaching amount values of all the samples were less than the national standard(1.5 mg/L),confirming the safety of the materials.In conclusion,an appropriate amount of zinc-containing raw material is beneficial for the preparation of augite-based glass ceramics.

关键词： spinel network structure thermodynamics microstructure glass ceramics

Cooperative output feedback consensus control of second-order nonlinear multi-agent systems under Markovian switching topologies

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Journal of Control and Decision 2023年第4期10卷 476-483页

作者： Chuanrui Wang Hua zhang Shuai Zhang Shanghai Zhongchuan SDT-NERC Co. Ltd.ShanghaiPeople’s Republic of China Marine Design and Research Institute of China ShanghaiPeople’s Republic of China

This paper deals with the leader-following consensus problem for a class of second-order nonlinear multi-agent systems by output feedback.The communication topology is characterized by a Markovian switching graph.Firstly,an input-driven observer is introduced to estimate the consensus error of each follower agent.Then,a cooperative nonlinear control law is constructed using the relative output information between neighboring agents by employing the backstepping methodology,which achievesleader-following consensusin mean square sense.Compared with the existing results,the nonlinear functions are required to satisfy polynomial growth condition rather than globally Lipschitz growth or Lipschitz-like growth condition.A numerical example is given to illustrate the theoretical results.

关键词： Multi-agent systems nonlinear systems Markovian switching topology output feedback

Chromium enrichment in different crystalline phases of Cr-containing slag under various basicities and equilibrium temperatures

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Journal of Iron and Steel Research(International) 2022年第9期29卷 1412-1422页

作者： Shao-wen Wu Yan-ling zhang Shuai Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The effects of basicities and equilibrium temperatures on the enrichment of chromium in different mineral phases of synthesized argon-oxygen decarburization slags were investigated to understand the Cr concentrating behavior into Mg(Cr,Al)2O4 spinel phase and to determine the leaching stability of Cr-containing slag.The results showed that when the basicity decreased from 1.0 to 0.6 and temperatures decreased from 1600 to 800℃,the Cr content of amorphous phase and crystalline phase gradually decreased,with a subsequent increase in the Cr content of spinel phase.The range of Cr enrichment in spinel of slags S1,S2,and S3 is 92.03-96.89,91.63-96.36,and 90.67-95.42,respectively.The mass fraction and the size of spinel increased with the decreasing equilibrium temperatures,and the Cr leaching values decreased simultaneously.Therefore,the trend of the amount of Cr-related ions in the leachate was consistent with the trend of Cr in the amorphous phase,diopside,and akermanite.The results suggest that the lower basicity and equilibrium temperatures could be conducive to stabilizing Cr into spinel phase to minimize Cr leaching into the environment.

关键词： Chromium enrichment Leaching behavior Basicity Temperature Cr-containing slag

CO_(2)捕集封存技术的应用与安全发展研究

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当代化工研究 2022年第20期 93-95页

作者：张帅陕西警官职业学院陕西710054

随着人类对化石燃料使用的依赖,大气CO_(2)含量持续上升,所带来的环境问题已严重影响人类正常的生产与生活。采用CO_(2)捕集封存技术(Carbon Dioxide Capture and Storage,CCS)可以有效的分离出排放源中的CO_(2)气体,并将其输送到封存... 详细信息

随着人类对化石燃料使用的依赖,大气CO_(2)含量持续上升,所带来的环境问题已严重影响人类正常的生产与生活。采用CO_(2)捕集封存技术(Carbon Dioxide Capture and Storage,CCS)可以有效的分离出排放源中的CO_(2)气体,并将其输送到封存地点进行封存,这是目前可以有效大规模减少大气CO_(2)含量的技术措施之一。本文通过对CCS技术捕集、运输、封存3个环节的技术方法比较,归纳出各种方法的优缺点。结合目前CO_(2)的主要排放源与主要封存地点现场情况,选择合理方法构建出燃煤电厂与煤矿之间的CCS系统,更方便快捷的实现CO_(2)捕集封对于更具体的了解CO_(2)捕集封存具有指导意义,为降低大气CO_(2)含量提供理论依据和技术指导。

关键词：二氧化碳捕集封存燃煤电厂

Energy evolution and water immersion‑induced weakening in sandstone roof of coal mines

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International Journal of Coal Science & Technology 2022年第4期9卷 93-106页

作者： Wenjie Liu Ke Yang Shuai Zhang Zhainan zhang Rijie Xu State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines Anhui University of Science and TechnologyHuainan 232001China Hefei Comprehensive National Science Center Institute of EnergyHefei 230031AnhuiChina National and Local Joint Engineering Research Center of Precision Coal Mining Anhui University of Science and TechnologyHuainan 232001AnhuiChina Key Laboratory of Mining Coal Safety and Efciently Constructed By Anhui Province and Ministry of Education Anhui University of Science and TechnologyHuainan 232001China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116JiangsuChina

The instability of underground spaces in abandoned coal mines with water-immersed rocks is one of the main hazards hindering the geothermal energy use and ecological restoration of post-mining areas.This study conducted graded cyclic loading–unloading tests of fve groups of sandstone samples with diferent water contents.The evolution of input,elastic,dissipated,damping,and plastic energies were explored,considering the damping efect.The normalized plastic energy serves to characterize the damage evolution of sandstone samples,whose failure characteristics were analyzed from both the macroscopic and microscopic perspectives.X-ray difraction technique and scanning electron microscopy were used to reveal the softening mechanism of sandstone.The results show that under graded cyclic loading,input energy,elastic energy,and dissipated energy all increase gradually,and the fraction of elastic energy increases gradually at frst and then tends to stabilize.The variation in the fraction of dissipated energy is opposite to that of elastic energy.In each cycle,the input energy is stored primarily in the form of elastic energy,whereas the dissipated energy is used primarily to overcome the damping of sandstone.When the normalized number of cycles approached unity,the plastic energy fraction sharply increases,while that of the dampening energy drops abruptly.With increasing water content,the efect of pore water on the lubrication,the water wedge,and dissolution of mineral particles becomes more obvious,reducing the elastic-storage limit of sandstone,meanwhile the sandstone damage factor increases signifcantly under the same cycle and the failure mode changes from brittle to ductile.

关键词： Mining engineering Energy evolution Water-rock interaction Weakening mechanism

Correlation mechanism of friction behavior and topological properties of the contact network during powder compaction

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Particuology 2023年第11期82卷 98-110页

作者： Wei zhang Chuanniu Yuan Shuai Zhang Weijian Xiao Ning zhang Rongxin Chen School of Mechanical and Automotive Engineering Fujian University of TechnologyFuzhou350118China

The effect of friction behavior on the compacted density is significant, but the relationship between the topological properties of the contact network and friction behavior during powder compaction remains unclear. Based on the discrete element method (DEM), a DEM model for die compaction was established, and the Hertz contact model was modified into an elastoplastic contact model that was more suitable for metal-powder compaction. The evolution of the topological properties of the contact network and its mechanism during powder compaction was explored using the elastoplastic contact model. The results demonstrate that the friction behavior between the particles is closely related to the topological properties of the contact network. Side wall friction results in smaller clustering coefficient (CC) and excess contact (EC) in the lower region near the side wall. Corresponding to this phenomenon, the upper region near the side wall has more high-stress particles when the major principal stress threshold was considered, and the CC and EC are significantly higher than those in the other regions. This study provides a theoretical basis for improving powder compaction behavior.

关键词： Powdercompaction Granularmatter Discrete element method Topological property Friction behavior

On the comparison of particle regeneration technique and volume adaptive scheme in the compressible flow based on smoothed particle hydrodynamics

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Journal of Hydrodynamics 2022年第3期34卷 408-421页

作者： Ming-Kang Li Shuai Zhang Yu-Xiang Peng A-Man zhang College of Shipbuilding Engineering Harbin Engineering UniversityHarbin150001China Nanhai Institute of Harbin Engineering University Sanya572024China School of Marine Engineering and Technology Sun Yat-sen UniversityZhuhai519082China

The collapse of a cavitation bubble is an interesting topic and it has many applications in the engineering fields.Due to its compressible nature,the modelling of a cavitation bubble is not easy by the Lagrangian method,like the smoothed particle hydrodynamics(SPH),as there is large variation of particle volume.Currently,there are two kinds of method that have been proposed to deal with this problem:the particle regeneration technique(PRT)and the volume adaptive scheme(VAS).They have all been validated via several numerical tests of compressible flow in the past studies.As is based on totally different concept,the ultimate simulation results and properties may differ.Here,we intend to compare these two methods based on the Riemann-based SPH solver with monotone upwind-centered scheme for conservation laws(MUSCL)reconstruction via several numerical tests.The characteristics of these two methods are discussed and the applicable scope for them are also commented for further usage.

关键词： Compressible flow smoothed particle hydrodynamics(SPH) particle regeneration technique(PRT) volume adaptive scheme(VAS)

Identification of circRNA/miRNA/mRNA regulatory net-work involving(+)-catechin ameliorates diabetic nephropathy mice

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Food Science and Human Wellness 2022年第3期11卷 660-668页

作者： Chao Chen Dina Zhu Shuai Zhang Wensheng zhang Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology Advanced Institute of Natural SciencesBeijing Normal UniversityZhuhai 519087China Engineering Research Center of Natural Medicine Ministry of EducationAdvanced Insti-tute of Natural SciencesBeijing Normal UniversityZhuhai 519087China International Cooperation Laboratory of Molecular Medicine Academy of Chinese Medical SciencesZhejiang Chinese Medical UniversityHangzhou 310053China Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China

(+)-Catechin(CE)is mainly found in green and black tea and has many biological effects,such as antiinflammatory,anti-cancer,anti-viral effects,protecting human organs,especially the kidney.This study aims to identify the circRNAs induced by CE in db/db mice and their roles in diabetic nephropathy progression.After the db/db mice were treated with CE,RNA-seq was performed to identify the differentially expressed circRNA and mRNAs.The ceRNA regulatory network was constructed and analyzed using bioinformatics software and public databases(Cytoscape,Clue GO,Mi RWalk,STRING,et al.).Our results revealed that 6 differentially expressed circRNAs are most associated with the cholinergic synapse,neurotrophin signaling pathway,and insulin signaling pathway.Among these,circRNA.5549 and circRNA.4712 might regulate Cd36,Cyp26 b1,C8 a,Cyp2 j13,Grem2 genes through ceRNA regulatory mechanism in the presence of CE treatment.The expanded network of proteins interacting with these 5 genes shows that the TGF-βsignaling pathway,signaling pathways regulating pluripotency of stem cell,fat digestion and absorption,and PPAR signaling pathway was highly enriched.Overall,circRNA.5549 and circRNA.4712 exhibit a promotive function in CE-treated db/db mice,especially in circRNA.5549/miR-29a-5P/Cd36 regulatory network,and this evidence suggest that their ceRNA regulatory network might be a therapeutic target for DN in humans.

关键词： Catechin Diabetic nephropathy CircRNA miRNA ceRNA

Kinematic Control of Serial Manipulators Under False Data Injection Attack

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IEEE/CAA Journal of Automatica Sinica 2023年第4期10卷 1009-1019页

作者： Yinyan zhang shuai Li College of Cyber Security Jinan UniversityGuangzhouChina College of Engineering Swansea UniversitySwanseaUnited Kingdom

With advanced communication technologies,cyberphysical systems such as networked industrial control systems can be monitored and controlled by a remote control center via communication networks.While lots of benefits can be achieved with such a configuration,it also brings the concern of cyber attacks to the industrial control systems,such as networked manipulators that are widely adopted in industrial automation.For such systems,a false data injection attack on a control-center-to-manipulator(CC-M)communication channel is undesirable,and has negative effects on the manufacture quality.In this paper,we propose a resilient remote kinematic control method for serial manipulators undergoing a false data injection attack by leveraging the kinematic model.Theoretical analysis shows that the proposed method can guarantee asymptotic convergence of the regulation error to zero in the presence of a type of false data injection attack.The efficacy of the proposed method is validated via simulations.

关键词： Cyber-physical systems false data injection attack manipulators remote kinematic control

Sustainable thermal energy harvest for generating electricity

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The Innovation 2024年第2期5卷 24-26页

作者： Shuai Zhang Zekun Liu Xiaotian zhang Zhenhua Wu Zhiyu Hu Department of Micro/Nano Electronics School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240China zhangjiang Institute for Advanced Study Shanghai Jiao Tong UniversityShanghai 200240China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

Electricity is the lifeblood of modern society.However,the predominant source of electricity generation still relies on non-renewable fossil fuels,whose combustion releases greenhouse gases contributing to global warming.The increasing demand for energy and escalating environmental concerns necessitate proactive measures to develop innovative green energy technologies capable of both cooling the Earth and generating electricity.Here,we look forward to an interdisciplinary power system integrating solar absorbers,radiative coolers,and thermoelectric generators.This system can simultaneously harvest thermal energy from the sun and from cold space,thereby transforming the challenges posed by global warming into opportunities for the production of clean electricity.We underscore recent advancements in this field and address key challenges while also exploring forward-looking opportunities in the foreseeable future.The proposed integrated energy technology achieves uninterrupted power supply through the unrestricted capture of thermal energy,offering a robust alternative pathway for next-generation sustainable energy technologies.

关键词： Sustainable generating electricity