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Prediction of the maximum water inflow in Pingdingshan No.8 mine based on grey system theory

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Journal of Coal Science & Engineering(China) 2012年第1期18卷 55-59页

作者： Xu, Jie jing, guo-xun Xu, Yao-yao School of Safety Science & Engineering Henan Polytechnic University Jiaozuo China Geological Survey Office of Pingdingshan No.8 Mine Pingdingshan China

In order to prevent and control the water inflow of mines, this paper built a new initial GM（1, 1） model to torecast the maximum water inflow according to the principle of new information. The effect of the new initial GM（1, 1） model is not ideal by the concrete example. Then according to the principle of making the sum of the squares of the difference between the calculated sequences and the original sequences, an optimized GM（1, I） model was established. The result shows that this method is a new prediction method which can predict the maximum water inflow accurately. It not only conforms to the guide- line of prevention primarily, but also provides reference standards to managers on making prevention measures.

关键词： prediction maximum water inflow grey system theory GM(1 1) model

Experimental study and numerical simulation of gas/particle flow in tunneling of mine

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Journal of Coal Science & Engineering(China) 2009年第1期15卷 85-87页

作者： LU Zhong-liang LI Hai-xia guo Pei-hong jing guo-xun School of Safety Science and Engineering Henan Polytechnic University Jiaozuo 454000 China School of Mechanical and Power Engineering Henan Polytechnic University Jiaozuo 454000 China

Respiration particles can be collected into a dust catcher by an inside inhalingand outside pressing particle collector. The work environment of the grab operator in tunneling mining was improved when a dust catcher is placed before the working face of thegrab operator. The particle movement was affected by the gas flow. The flow field insideand outside the dust collector was simulated. The effect of the operating parameter wasanalyzed. The numerical results show a good approach to predict the gas flow and particledistribution in the inside and outside of the particle collector.

关键词： grab working face particle movement inside inhaling and outside pressing particle collector

Xinhe Mine water inrush risk assessment based on quantification theoretical models

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Journal of Coal Science & Engineering(China) 2010年第4期16卷 386-388页

作者： LI Hui jing guo-xun CAI Zheng-Iong OU Jian-chun School of Safety Science and Engineering Henan Polytechnic University Jiaozuo 454000 China Coal Chemical Industry Group Co. Ltd. Henan Jiaozuo Subsidiary Company Jiaozuo 454000 China School of Safety Science and Engineering China University of Mining and Technology Xuzhou 261116 China

Taking the Xinhe mine's structure, mine pressure, structural fissure, fault andfault displacement, the distance between fault and water inrush point, thickness of block,water pressure those geological factors which influenced the water inrush as the independentvariable, based on these data of water inrush point and water uninrush point, usingthe method of quantification theory(Ⅰ,Ⅱ), it would quantitatively disposes the qualitativevariable, applied to calculation to evaluate the risk of Xinhe's water inrush.

关键词： water inrush assessment prediction quantification theoretical model

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煤与瓦斯突出过程中瓦斯作用的研究

煤炭学报 2005年第2期30卷 169-171页

作者：景国勋张强河南理工大学资源与材料工程系河南焦作454000

为了对煤与瓦斯突出事故进行有效的预防与控制, 分别从孕育和突出两个阶段阐述了瓦斯在煤与瓦斯突出中所起的作用, 指出了煤层吸附瓦斯和裂隙瓦斯对煤的物理力学性质的影响;由于空隙瓦斯的存在, 加剧了煤体失稳破坏的过程; 特别指出突... 详细信息

为了对煤与瓦斯突出事故进行有效的预防与控制, 分别从孕育和突出两个阶段阐述了瓦斯在煤与瓦斯突出中所起的作用, 指出了煤层吸附瓦斯和裂隙瓦斯对煤的物理力学性质的影响;由于空隙瓦斯的存在, 加剧了煤体失稳破坏的过程; 特别指出突出的主要能源来自于瓦斯的膨胀能; 并根据这一结论提出了相应的防突措施.

关键词：煤与瓦斯突出吸附瓦斯瓦斯膨胀能突出防治

2008—2013年我国煤矿瓦斯事故规律分析

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安全与环境学报 2014年第5期14卷 353-356页

作者：景国勋河南理工大学安全科学与工程学院河南焦作454003

为研究我国煤矿瓦斯事故的一般性规律,以2008—2013年煤矿瓦斯事故为分析对象,采用数据统计法对煤矿事故发生类型、区域、月份、时刻、所有制形式5个维度进行研究。结果表明:湖南省、贵州省瓦斯事故发生频率较高,河南省、云南省重大瓦... 详细信息

为研究我国煤矿瓦斯事故的一般性规律,以2008—2013年煤矿瓦斯事故为分析对象,采用数据统计法对煤矿事故发生类型、区域、月份、时刻、所有制形式5个维度进行研究。结果表明:湖南省、贵州省瓦斯事故发生频率较高,河南省、云南省重大瓦斯事故发生频率较高;每年3月份瓦斯事故发生频率最高;每天中8:00—11:59和20:00—24:00是瓦斯事故频发时间;炮采是瓦斯发生次数最多的采煤工艺;违章操作是煤矿瓦斯事故发生的高频率诱因;瓦斯爆炸和煤与瓦斯突出是瓦斯事故的主要类型,并针对瓦斯事故发生规律提出了相应的防范措施。

关键词：安全工程瓦斯事故规律统计分析

Thermodynamic and experimental study of high-temperature roasting of blast furnace gas ash for recovery of metallic zinc and iron

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Journal of Iron and Steel Research International 2024年第1期31卷 108-120页

作者： Zi-han Wang jing guo Han-jie guo Bin Li School of Metallurgical Engineering University of Science and Technology BeijingBeijing100083China School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an710055ShaanxiChina

A high-temperature reduction roasting method was used to achieve metallic iron and zinc recovery from blast furnace gas ash(BFA).The reduction processes for Zn-containing and Fe-containing oxides were analyzed in detail by using ther-modynamic equilibrium calculation and the principle of minimum free *** results showed that the main reaction in the system is the reduction of ZnFe_(2)_(4)and iron *** the full temperature range,iron oxides were more easily reduced than zinc *** of the amount of CO contained in the system,the reduction of ZnO to Zn was difficult to proceed below the boiling point(906℃)of *** the reduction temperature is below 906℃,the reduction process of zinc ferrate was ZnFe_(2)_(4)→ZnO;when the reduction temperature is above 906℃,its reduction process becomed ZnFe_(2)_(4)→ZnO→Zn(g).The metallization and dezincification rates of the BFA gradually increased with increasing reaction *** the C/O ratio increased,the metallization and dezincification rates first increased and then *** effect of reduction time on BFA reduction was similar to that of reaction temperature.

关键词： Blast furnace gas ash Thermodynamics Zinc removal Iron reduction High-temperature reduction roasting Integrated utilization

Innovations in metallurgical and materials processes:advancing liquid theory and honoring ***-jie guo's contributions to physical chemistry in metallurgy

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Journal of Iron and Steel Research International 2024年第1期31卷 1-2页

作者： Shuai Liu jing guo Han-jie guo School of Artificial Intelligence Beijing Technology and Business UniversityBeijing100048China School of Metallurgical and Ecological Engineering University of Science and Technology Beijing(USTB)Beijing100083China

Spanning three decades,***-jie guo's research group has dedicated itself to exploring the fundamental theories and practical applications of physical chemistry within the realm of *** under the assumption that molecul... 详细信息

关键词： chemistry liquid complexes

Noise-Tolerant ZNN-Based Data-Driven Iterative Learning Control for Discrete Nonaffine Nonlinear MIMO Repetitive Systems

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IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 344-361页

作者： Yunfeng Hu Chong Zhang Bo Wang jing Zhao xun Gong Jinwu Gao Hong Chen State Key Laboratory of Automotive Simulation and Control Jilin UniversityJilin UniversityChangchun 130025China College of Communication Engineering Jilin UniversityJilin UniversityChangchun 130025China Department of Electromechanical Engineering University of MacaoMacao 999078China School of Artificial Intelligence Jilin UniversityChangchun 130012China IEEE College of Electronics and Information Engineering Tongji UniversityShanghai 200092China

Aiming at the tracking problem of a class of discrete nonaffine nonlinear multi-input multi-output(MIMO) repetitive systems subjected to separable and nonseparable disturbances, a novel data-driven iterative learning control(ILC) scheme based on the zeroing neural networks(ZNNs) is proposed. First, the equivalent dynamic linearization data model is obtained by means of dynamic linearization technology, which exists theoretically in the iteration domain. Then, the iterative extended state observer(IESO) is developed to estimate the disturbance and the coupling between systems, and the decoupled dynamic linearization model is obtained for the purpose of controller synthesis. To solve the zero-seeking tracking problem with inherent tolerance of noise,an ILC based on noise-tolerant modified ZNN is proposed. The strict assumptions imposed on the initialization conditions of each iteration in the existing ILC methods can be absolutely removed with our method. In addition, theoretical analysis indicates that the modified ZNN can converge to the exact solution of the zero-seeking tracking problem. Finally, a generalized example and an application-oriented example are presented to verify the effectiveness and superiority of the proposed process.

关键词： Adaptive control control system synthesis data-driven iterative learning control neurocontroller nonlinear discrete time systems

Interface optimization of graphene paper-Cu composite prepared by electrodeposition

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Journal of Iron and Steel Research International 2024年第1期31卷 64-73页

作者： jing guo Hai-jing Wang Shuang-juan Liu Peng Zhang jing-yu Tang Wei-yang Zhang Han-jie guo Peng-cheng Wang Cai Meng School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China Advanced Technology and Materials Co. Ltd.Beijing100083China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei230027AnhuiChina

A room-temperature electrodeposition method with an organic electrolyte was developed to fabricate a HNO3-pretreated graphene paper Cu(GP'-Cu)*** improve the interfacial bonding of GP'-Cu composite,magnetron sputtering technology was used to create a"sandwich"structural gradient GP'-Cu *** selection of the intermediate transition layer metal was based on two-dimensional *** electron microscopy,X-ray photoelectron spectroscopy,and other analytical methods confirmed that the addition of an intermediate transition metal(Cr,Ni)layer reduced the gap distance and enhanced the interfacial bonding of the GP'and Cu deposited *** GP'-Ni-Cu composite exhibited the largest increase in tensile strength and *** addition,it had the highest thermal diffusivity and elongation at break among the GP'-Cu,GP'-Cr-Cu and GP'-Ni-Cu composites.

关键词： Graphene paper Two-dimensional disregistry Magnetron sputtering Metal composite