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凌钢含铁粉尘合理搭配利用试验

中国冶金 2017年第7期27卷 72-76页

作者：陈乾业张俊严定鎏许海川钢研晟华工程技术有限公司研发部北京100081 钢铁研究总院先进钢铁流程及材料国家重点实验室北京100081

根据转炉灰(泥)的成分提出了优化利用方式,并从造球和还原两方面研究了高炉灰与转炉灰(泥)的搭配利用情况。造球过程中充分利用转炉灰中游离CaO的黏性以及CO2气氛中的硬化作用,在不添加黏结剂的情况下可以获得满足生产要求的球团。以高... 详细信息

根据转炉灰(泥)的成分提出了优化利用方式,并从造球和还原两方面研究了高炉灰与转炉灰(泥)的搭配利用情况。造球过程中充分利用转炉灰中游离CaO的黏性以及CO2气氛中的硬化作用,在不添加黏结剂的情况下可以获得满足生产要求的球团。以高炉灰为碳源,与转炉灰(泥)搭配还原,还原温度超过1 250℃后锌的脱除率达到95%以上,温度进一步提升至1 280℃后铁的还原度达到80%以上,多数情况下超过95%,为高炉灰与转炉灰(泥)利用提出了一种有效途径。

关键词：高炉灰转炉灰直接还原造球养护

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Light(Science & Applications) 2024年第2期13卷 333-346页

作者： Yifan Sun qian Li Ling-jun Kong Xiangdong zhang Key Laboratory of advanced optoelectronic quantum architecture and measurements of Ministry of Education Beijing Key Laboratory of Nanophotonics&Ultrafine Optoelectronic SystemsSchool of PhysicsBeijing Institute of Technology100081BeijingChina

Compared with electrical neural networks,optical neural networks(ONNs)have the potentials to break the limit of the bandwidth and reduce the consumption of energy,and therefore draw much attention in recent *** far,several types of ONNs have been ***,the current ONNs cannot realize the acceleration as powerful as that indicated by the models like quantum neural *** to construct and realize an ONN with the quantum speedup is a huge ***,we propose theoretically and demonstrate experimentally a new type of optical convolutional neural network by introducing the optical *** is called the correlated optical convolutional neural network(COCNN).We show that the COCNN can exhibit“quantum speedup”in the training *** character is verified from the two *** is the direct illustration of the faster convergence by comparing the loss function curves of the COCNN with that of the traditional convolutional neural network(CNN).Such a result is compatible with the training performance of the recently proposed quantum convolutional neural network(QCNN).The other is the demonstration of the COCNN’s capability to perform the QCNN phase recognition circuit,validating the connection between the COCNN and the ***,we take the COCNN analog to the 3-qubit QCNN phase recognition circuit as an example and perform an experiment to show the soundness and the feasibility of *** results perfectly match the theoretical *** proposal opens up a new avenue for realizing the ONNs with the quantum speedup,which will benefit the information processing in the era of big data.

关键词： process quantum convolution

A Perspective on the Dynamics Properties in Polymer Nanocomposites

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Chinese Journal of Polymer Science 2023年第9期41卷 1355-1360,I0005页

作者： Xu-Ze zhang Zhong-Yuan Lu Hu-jun qian State Key Laboratory of Supramolecular Structure and Materials Institute of Theoretical ChemistryCollege of ChemistryJilin UniversityChangchun130021China

Polymer nanocomposites(PNCs)usually have superior properties than pristine *** the dynamics properties in PNC system is crucial to reveal the mechanism of property change unpon the addition of nanoparticles(NPs),and therefore for a better design of the material *** this short perspective,we summarize recent advances mainly from theoretical and simulation studies of dynamics properties in polymer nanocomposite *** is the"vehicle model"which reveals that diffusion dynamics of sticky NP is coupled to surrounding chain ***,recent simulations demonstrate that such coupling also exists in all-polymer nanocomposite wich is composed of linear polymer chains and single-chain nanoparticles(SCNPs).These SCNPs have almost the same chemical composition as the matrix ***,it is assumed that such all-polymer nanocomposite can act as a model system where there are no enthalpic interactions between NPs and polymer *** the above dynamic coupling was found in the above two different systems containing inorganic NPs or relatively small organic SCNPs,it was found that the length scale of such dynamic coupling(the thickness of the matrix/NP interface)is comparable to the NP size,which is surprisingly consistent in the above two different *** addition,a chain-length dependence of the NP influence on the chain dynamics reported from a recent joint simulaiton and experimental study of all-polymer nanocomposite system,and a theoretical model developed for such phenomena are also *** the end,we give an outlook of this field,especially for possible chainlength dependence of complex dynamics in sticky-NP systems.

关键词： Polymer nanocomposite Dynamics properties Interfacial interaction

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光折变位相图

中国激光 2001年第1期28卷 55-58页

作者：温海东刘思敏张心正郭儒张国权孙骞许京军张光寅南开大学物理系天津300071

提出并实验证明了一种利用光折变效应制作体位相图的新方法。这种体位相图是可见的。该方法具有实时、简便等优点。在集成光学和光学信息处理中具有重要的应用前景。

关键词：光折变位相图集成光学光学信息处理

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大数据技术在高校教育教学中的实践运用

办公自动化 2025年第1期30卷 42-44页

作者：张倩南阳医学高等专科学校南阳473000

随着大数据技术的不断发展和普及,越来越多的高校开始尝试将其用到教育教学以提升教学质量、个性化教育,以及优化教学资源配置。文章探讨大数据技术对高校教育教学的影响,分析大数据技术在高校教育教学中的实践,为高校教育教学的改革提... 详细信息

随着大数据技术的不断发展和普及,越来越多的高校开始尝试将其用到教育教学以提升教学质量、个性化教育,以及优化教学资源配置。文章探讨大数据技术对高校教育教学的影响,分析大数据技术在高校教育教学中的实践,为高校教育教学的改革提供理论支持和实践借鉴。

关键词：大数据技术高校教育教学教学管理

Revolutionizing photothermal CO_(2)hydrogenation with ceria-based catalysts

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Nano Research 2025年第1期18卷 30-49页

作者： Zhaorui zhang Xiao Han junhong zhang Yunyun Dong Jinsheng Zhao qian Xu ingqiang zhang School of Chemistry and Chemical Engineering Liaocheng UniversityLiaocheng 252059China Institute for Catalysis Hokkaido UniversityN-21W-10Sapporo 001-0021Japan National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China

In the context of achieving carbon neutrality,CO_(2)catalytic conversion technologies are effective in reducing atmospheric CO_(2)concentrations while simultaneously producing renewable *** approach is seen as a viable method for constructing a new carbon cycle,thereby effectively addressing the issue of global *** CO_(2)conversion has recently emerged as a promising research focus due to its high energy utilization efficiency,superior CO_(2)conversion,excellent product selectivity,mild operating conditions,low energy consumption and minimal operating *** oxide(CeO_(2))has been widely used in photothermal catalysis due to its unique chemical properties,particularly when used as a support material with supported metals,creating distinctive interfacial sites for catalytic *** an emerging star support in photothermal CO_(2)conversion,its contributions are equally significant and should not be ***,to our knowledge,there has been no comprehensive review of CeO_(2)applications in catalytic hydrogenation of CO_(2).In this paper,we summarize and discuss CeO_(2)-based materials for photothermal CO_(2)conversion to value-added *** research particularly focuses on the synthesis methods of CeO_(2)-supported catalysts,the history of CeO_(2)in photothermal catalysis,types of photothermal catalytic reactors,unique characterization methods for the photothermal catalysts and the photothermal CO_(2)hydrogenation reactions by CeO_(2)-based *** related to further challenges and future directions for photothermal CO_(2)hydrogenation are also provided.

关键词： CO_(2)neutrality hydrogenation photothermal catalysis ceria C1 chemistry

Recent progress in metal-organic frameworks(Part II—material application)

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Science China Chemistry 2025年

作者： Jiandong Pang Wentao Jiang Xue-Wen zhang Hao-Long Zhou Yuxiu Sun Wei Gong Bin Wang Fuyin Ma Linwei He Long Chen qiang Chen He-Qi Zheng Yuanjing Cui Wen-Jie Shi Chao zhang Mei Wang Yue-Biao zhang Jie-Peng zhang Chongli Zhong Yong Cui Shuao Wang Jian-Rong Li Guodong qian Tong-Bu Lu Huan Pang Xian-He Bu Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology School of Chemistry and Chemical Engineering Yangzhou University School of Materials Science and Engineering Nankai University School of Physical Science and Technology ShanghaiTech University MOE Key Laboratory of Bioinorganic and Synthetic Chemistry GBRCE for Functional Molecular Engineering School of Chemistry IGCMESun Yat-sen University Department of Chemistry Shantou University School of Chemical Engineering and Technology Tiangong University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences Soochow University College of Materials Science & Engineering Beijing University of Technology State Key Laboratory of Silicon and Advanced Semiconductor Materials Cyrus Tang Center for Sensor Materials and ApplicationsSchool of Materials Science & Engineering Zhejiang University

As a class of functional crystalline porous materials, metal-organic frameworks(MOFs) gained rapid development in the past three decades and a large number of MOFs with ordered structures, high surface areas, and functionalized channels have been investigated. MOFs and MOF-derived/composite materials show great potential in many application fields. In this review, we discussed the main applications of MOFs and MOF-derived/composite materials in small molecule storage, separation, luminescence, sensing, multitype catalysis, and energy storage. In addition, challenges and problems in the future research of MOFsrelated fields are also discussed.

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User-level failure detection and auto-recovery of parallel programs in HPC systems

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Frontiers of Computer Science 2021年第6期15卷 31-42页

作者： Guozhen zhang Yi LIU Hailong YANG jun XU Depei qian State Key Laboratory of Software Development Environment Beijing 100191China Sino-German Joint Software Institute Beihang UniversityBeijing 100191China School of Computer Science and Engineering Beihang UniversityBeijing 100191China Science and Technology on Space System Simulation Laboratory Beijing Simulation Center Beijing 100854China

As the mean-time-between-failures(MTBF)continues to decline with the increasing number of components on large-scale high performance computing(HPC)systems,program failures might occur during the execution period with high *** successful execution of the HPC programs has become an issue that the unprivileged users should be *** the user perspective,if the program failure cannot be detected and handled in time,it would waste resources and delay the progress of program ***,the unprivileged users are unable to perform program state checking due to execution control by the job management system as well as the limited ***,automated tools for supporting user-level failure detection and autorecovery of parallel programs in HPC systems are *** paper proposes an innovative method for the unprivileged user to achieve failure detection of job execution and automatic resubmission of failed *** state checker in our method is encapsulated as an independent job to reduce interference with the user *** addition,we propose a dual-checker mechanism to improve the robustness of our *** implement the proposed method as a tool named automatic re-launcher(ARL)and evaluate it on the Tianhe-2 *** results show that ARL can detect the execution failures effectively on Tianhe-2 *** addition,the communication and performance overhead caused by ARL is *** good scalability of ARL makes it applicable for large-scale HPC systems.

关键词： high performance computing parallel program failure detection failure auto-recovery

A Novel PDF Shape Control Approach for Nonlinear Stochastic Systems

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IEEE/CAA Journal of Automatica Sinica 2022年第8期9卷 1490-1498页

作者： Lingzhi Wang Guo Xie Fucai qian jun Liu Kun zhang Electrical Engineering Department School of AutomationXi’an University of Posts and TelecommunicationsXi’an 710121China School of Automation and Information Engineering Xi’an University of TechnologyXi’an 710048China

In this work,a novel shape control approach of the probability density function(PDF)for nonlinear stochastic systems is ***,we provide the formula for the PDF shape controller without devising the control law of the ***,based on the exact analytical solution of the Fokker-PlanckKolmogorov(FPK)equation,the product function of the polynomial and the exponential polynomial is regarded as the stationary PDF of the state *** validate the performance of the proposed control approach,we compared it with the exponential polynomial method and the multi-Gaussian closure method by implementing comparative simulation *** results show that the novel PDF shape control approach is effective and *** an equal number of parameters,our method can achieve a similar or better control effect as the exponential polynomial *** comparison with the multiGaussian closure method,our method has clear advantages in PDF shape control *** all cases,the integral of squared error and the errors of first four moments of our proposed method were very small,indicating superior performance and promising good overall control effects of our *** approach presented in this study provides an alternative for PDF shape control in nonlinear stochastic systems.

关键词： Fokker-Planck-Kolmogorov(FPK)equation nonlinear control nonlinear stochastic systems probability density function(PDF)