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蒙陕接壤区煤层顶板涌水水源智能判别方法

煤田地质与勘探 2024年第4期52卷 76-88页

作者：王皓孙钧青曾一凡尚宏波王甜甜乔伟煤炭科学研究总院北京100013 中煤科工西安研究院(集团)有限公司陕西西安710077 陕西省煤矿水害防治技术重点实验室陕西西安710077 中国矿业大学(北京)国家煤矿水害防治工程技术研究中心北京100083

蒙陕接壤区煤炭高强度开采诱发的煤层顶板水害问题日益凸显,高效智能地判别煤层顶板涌水水源是顶板水害防治的关键。以蒙陕接壤区3个典型矿井为研究对象,将无机指标K^(+)+Na^(+)、Ca^(2+)、Mg^(2+)、Cl^(-)、SO_(4)^(2-)、HCO_(3)^(-)、... 详细信息

蒙陕接壤区煤炭高强度开采诱发的煤层顶板水害问题日益凸显,高效智能地判别煤层顶板涌水水源是顶板水害防治的关键。以蒙陕接壤区3个典型矿井为研究对象,将无机指标K^(+)+Na^(+)、Ca^(2+)、Mg^(2+)、Cl^(-)、SO_(4)^(2-)、HCO_(3)^(-)、TDS和有机指标UV_(254)、TOC、溶解性有机质(DOM)的荧光光谱作为判别指标,利用主成分分析法(PCA)对80组地下水水样数据进行主成分提取,提出一种人工鱼群算法(AFSA)改进随机森林(RF)的PCA-AFSA-RF顶板涌水水源智能判别方法。首先,建立PCA-RF判别模型,其准确率(A_(c))、精确率(P_(r))、召回率(R_(c))和F-measure指数(f_(1))分别达到了83.00%、83.17%、80.42%和79.57%;其次,通过AFSA对PCA-RF判别模型中决策树数目、树深和内部节点分裂所需的最小样本数进行寻优,在AFSA中引入遗传机制以避免陷入局部最优,建立基于PCA-AFSA-RF的煤层顶板涌水水源智能判别模型,该模型A_(c)、P_(r)、R_(c)、f_(1)分别达到92.18%、91.11%、87.58%和88.82%,较PCA-RF分别提高9.18%、7.94%、7.16%和9.25%,回代准确率达到97.50%;最后,利用该模型对12个矿井水水样进行判别,结果与现场实际相一致,表明AFSA改进后的PCA-RF模型具有更好的准确性和泛化能力。研究结果可为煤层顶板涌水水源的准确判别提供新方法。

关键词：蒙陕接壤区顶板涌水无机-有机指标机器学习智能判别

Cooperative Optimization for Container Multi-modal Transport based on MAS

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Cooperative Optimization for Container Multi-modal Transport...

第36届中国控制会议

作者： Zhao Endi sun Bin Yang Peng sun junqing Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology

ISBN: (纸本)9781538629185

As the international container multi-modal transport has become the important bridge of international trade,routing optimization and carrier selection has been already attracted extensive *** economy and timeliness,the transport reliability under uncertainty environment is considered and a cooperative optimization model for container multi-modal transport based on multi-agent is also *** deal with the coordination between the agents,the negotiation mechanism based on multi-attribute auction is further *** the bidding and the winning strategy of the carriers and the multi-modal transport operator proposed respectively,a mechanism based on three-dimensional network and non-linear compensation function for updating the scheduling plan is *** the simulation experiments which use the instances from China to Australia verify the feasibility of the model and the method proposed.

关键词： Container multi-modal transport Uncertainty environment Multi-agent Auction Three-dimensional network

Spatial prisoner’s dilemma games with increasing size of the interaction neighborhood on regular lattices

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Chinese Science Bulletin 2012年第7期57卷 724-728页

作者： Wang Juan Xia ChengYi Wang YiLing Ding Shuai sun junqing Tianjin Univ Technol Tianjin Key Lab Control Theory & Complicated Ind Tianjin 300384 Peoples R China Tianjin Univ Technol Minist Educ Key Lab Comp Vis & Syst Tianjin 300384 Peoples R China Shanxi Normal Univ Sch Life Sci Linfen 041000 Peoples R China Hefei Univ Technol Inst Comp Network Syst Hefei 230009 Peoples R China

We studied the evolution of cooperation in the prisoner's dilemma game on a square lattice where the size of the interaction neighborhood is considered. Firstly, the effects of noise and the cost-to-benefit ratio on the maintenance of cooperation were investigated. The results indicate that the cooperation frequency depends on the noise and cost-to-benefit ratio: cooperation reaches a climax as noise increases, but it monotonously decreases and even vanishes with the ratio increasing. Furthermore, we investigated how the size of the interaction neighborhood affects the emergence of cooperation in detail. Our study demonstrates that cooperation is remarkably enhanced by an increase in the size of the interaction neighborhood. However, cooperation died out when the size of the interaction neighborhood became too large since the system was similar to the mean-field system. On this basis, a cluster-forming mechanism acting among cooperators was also explored, and it showed that the moderate range of the neighborhood size is beneficial for forming larger cooperative clusters. Finally, large-scale Monte Carlo simulations were carried out to visualize and interpret these phenomena explicitly.

关键词：囚徒困境正方晶格相互作用合作伙伴游戏空间蒙特卡罗模拟成本效益

On Quantitative Analysis Method of Detecting the Content of Molten Alloy Steel Element Based on LIBS Technology

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On Quantitative Analysis Method of Detecting the Content of ...

第36届中国控制会议

作者： Zhang Qin Yang Peng Feng Meiling sun junqing Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology

ISBN: (纸本)9781538629185

Based on laser induced breakdown spectroscopy（LIBS） technique, the content of the main elements in the liquid steel of steel alloy can be detected in real time during melting process. In order to improve the detecting accuracy, the quantitative analysis method of laser induced breakdown spectroscopy（LIBS） for the melting alloy steels has been investigated. In this paper,the clustering method combined with the partial least squares method is applied in the metallurgical industry to determine the the element concentration of the steels. The experimental results show that the relative standard error is less than 1.316% and the average absolute error is 0.869%. The accuracy of the method is better than that of traditional partial least squares method, and the relative standard error of measurement is obviously reduced.

关键词： laser induced breakdown spectroscopy quantitative analysis partial least squares method relative standard error

Simulating Approach Based Optimal Manpower planning in an Employee Leasing Center and the Approximate Algorithm

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Simulating Approach Based Optimal Manpower planning in an Em...

第26届中国控制与决策会议

作者： Zhang Xiufu Hao Gang Gou Zhijing sun Bin sun junqing School of Computer Science ＆ Communication Tianjin University of Technology

ISBN: (纸本)9781479937066

This paper studies the issue of manpower planning in an employee leasing center and optimizing the size of the contract employees. The center considered in this paper not only leases the contract employees to the firms but also acts as an agent for temporary employees outside the center in the manpower market. Between the two types of employees, one type with mixed skills can be substituted for the other type to work. The demand for the employees from the firms needing workforce and the supply of temporary employees outside the center are both stochastic. Firstly, based on the rule of maximizing the overall profit of the center and under substituting strategies, we present a discrete stochastic optimization model to maximize the sizes of two types of employees. Then we prove the existence and necessary conditions of the optimal solution by using the marginal analysis method and we also develop an optimal algorithm to calculate the optimal solution. Because of the high time complexity of the optimal algorithm, we develop an efficient approximate algorithm based on computer simulation approach. The simulating experiments show that the approximate algorithm greatly reduces computing time, and the approximate optimal solutions found by the approximate algorithm has strong approximate effectiveness and robustness.

关键词： Manpower planning(MPP) employee leasing approximation algorithm computer simulation

新型细粒级加重质矿物气固分选流态化密度分布研究

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中国煤炭 2024年第9期50卷 111-119页

作者：孙郡庆沈繁舜李林海李泽鑫李子源周晨阳周恩会张亚东国能新疆托克逊能源有限责任公司新疆维吾尔自治区吐鲁番市830011 中国矿业大学化工学院江苏省徐州市221116

煤炭分选对提升煤炭品质具有重要作用,气固流化床选煤将流态化技术应用于选煤领域,有助于实现煤炭的干法提质。为解决传统Geldart B类加重质流态化分选密度波动大的难题,提出采用Geldart A类细粒级加重质用于流态化分选的思路。系统研... 详细信息

煤炭分选对提升煤炭品质具有重要作用,气固流化床选煤将流态化技术应用于选煤领域,有助于实现煤炭的干法提质。为解决传统Geldart B类加重质流态化分选密度波动大的难题,提出采用Geldart A类细粒级加重质用于流态化分选的思路。系统研究了新型细粒级加重质气固流态化分选床层密度分布特征,探究了床层密度的稳定性和细粒煤分选效果,分析了床层密度方差和分选效率的变化规律。结果表明,细粒级加重质中的床层密度分布更为均匀,轴向密度差异较低;结合床层膨胀行为研究,建立了细粒级加重质流化床床层密度预测模型,密度波动处于±0.1 g/cm 3时可以有效预测床层密度的分布,解决了分选过程中密度调控的难题。

关键词：干法分选流化床密度分布密度预测加重质

Fluid shear stress induced Ca2+transient in osteoblast:a model study

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Fluid shear stress induced Ca2+transient in osteoblast:a mod...

第十一届全国生物力学学术会议暨第十三届全国生物流变学学术会议

作者： junqing sun Liang Shi Jianbao Zhang The Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong University

Objective:Fluid shear stress(FSS)induced intracellular Catransient plays an important role in osteoblastic *** pathways,such as L-type voltage-sensitive Cachannels(L-VSCCs),stretch-activated channels(SACs),ATP,P2Y receptor and endoplasmic reticulum(ER),have been identified to be involved in this calcium *** previous study demonstrated that it was also related with depolari-

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Optimal Decision of Components Ordering for Two Kinds of Substitutable and Perishable Products

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Optimal Decision of Components Ordering for Two Kinds of Sub...

第37届中国控制会议

作者： Wenjuan Zhao Meiling Feng Bin sun junqing sun Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology

This paper investigates the optimal decision of components ordering for a dealer who assembles and sells the two kinds of substitutable and perishable products. In the case of uncertain product demand, when the dealer encounter old product out of stock, they can use the hybrid product or the new product to meet the demand of the old product users. A discrete stochastic optimization model, which takes maximizing its expectation of net income as its objective and use satisfaction rate of the customer demands as the stochastic constraints and in which the substitutable strategy, is taken into account, is proposed for the ordering sizes of the two kinds of substitutable and perishable products. Then this paper analyzes the properties of the model with and without the stochastic constraint, proves the existence of the optimal solution by applying the method of marginal analysis and gives the algorithm of finding the optimal solution. Finally, this paper employs some simulated data cases to verify the validity of the algorithm and the method proposed in this paper and puts forward some management insights for the dealer.

关键词： Perishable products Substitutable demand Optimal decision of component ordering Discrete optimization mode

Structural basis of Semliki Forest virus entry using the very-low-density lipoprotein receptor

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hLife 2023年第2期1卷 124-136页

作者： Ying Li Zhennan Zhao Sheng Liu Haichen Wang junqing sun Yan Chai Jingya Zhou Yinuo Wang Yi Shi Hao Song George Fu Gao Savaid Medical School University of Chinese Academy of SciencesBeijingChina CAS Key Laboratory of Pathogen Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijingChina Cryo-EM Center Southern University of Science and TechnologyGuangdongChina School of Life Sciences Hebei UniversityHebeiChina Research Network of Immunity and Health(RNIH) Beijing Institutes of Life ScienceChinese Academy of SciencesBeijingChina College of Veterinary Medicine Shanxi Agricultural UniversityShanxiChina

Alphaviruses are a group of important viruses that cause significant diseases in *** them,Semliki Forest vi-rus(SFV)not only causes symptoms such as joint pain but also infects neuron cells and induces encephalitis in ***,the very-low-density lipoprotein receptor(VLDLR)was identified as the cellular receptor for SFV *** this study,we present the cryo-electron microscopy structure of SFV bound to human *** targets E1-DIII region of SFV using its membrane-distal LDLR class A(LA)*** and functional analyses emphasize the synergistic role of multiple VLDLR repeats in the SFV ***,VLDLR’s binding mode to SFV closely mirrors that of minor group human rhinoviruses but differs significantly from other alphaviruses’interactions with receptors in the canyon re-gion of the E *** also assessed SFV binding to VLDLR or apolipoprotein E receptor 2(ApoER2)proteins in horses and mosquitoes and revealed their use of multiple but different LA repeats for *** findings illuminate SFV’s cross-species infectivity,offering insights into potential antiviral strategies against alphavirus infections.

关键词： alphavirus Semliki Forest virus very-low-density lipoprotein receptor cryo-electron microscopystruc-ture receptor viral entry