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Chinese Physics B 2024年第9期33卷 340-348页

作者： Minfang zhao Lingting Kong Miao Liu Shaoyong lai School of Mathematics and Statistics Yili Normal UniversityYining 835000China Institute of Applied Mathematics Yili Normal UniversityYining 835000China School of Mathematics Southwestern University of Finance and EconomicsChengdu 611130China

The distribution of continuous service time in call centers is investigated.A non-Maxwellian collision kernel combining two different value functions in the interaction rule are used to describe the evolution of continuous service time,*** the statistical mechanical and asymptotic limit methods,Fokker–Planck equations are derived from the corresponding Boltzmann-type equations with non-Maxwellian collision *** steady-state solutions of the Fokker–Planck equation are obtained in exact *** experiments are provided to support our results under different parameters.

关键词： kinetic theory service time Fokker–Planck equation value function

陕西省宁强县小燕子沟金矿床开采技术条件分析

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资源信息与工程 2024年第4期39卷 10-13,17页

作者：艾忠林王文举来召李伟良甘肃中金黄金矿业有限责任公司甘肃陇南742400 陕西太白黄金矿业有限责任公司陕西宝鸡721607 西北有色工程有限责任公司陕西西安710038

陕西省宁强县小燕子沟金矿床为近年来在西秦岭地区发现的金矿床。本文对矿区水文、工程、环境地质条件进行分析,认为小燕子沟金矿床水文地质条件为简单-中等类型、工程地质条件复杂程度为中等、环境地质条件为中等,基本适宜矿山建设。... 详细信息

陕西省宁强县小燕子沟金矿床为近年来在西秦岭地区发现的金矿床。本文对矿区水文、工程、环境地质条件进行分析,认为小燕子沟金矿床水文地质条件为简单-中等类型、工程地质条件复杂程度为中等、环境地质条件为中等,基本适宜矿山建设。研究成果可为后期的矿山开采建设提供基础资料。

关键词：小燕子沟金矿水文地质工程地质环境地质开采技术条件

Dynamic Water Modeling and Application of Billet Continuous Casting

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Journal of Iron and Steel Research International 2008年第2期15卷 14-17页

作者： LIU Wen-hong XIE Zhi JI Zhen-ping WANG Biao lai zhao-yi JIA Guang-lin School of Information Science and Engineering Northeastern University Shenyang 110004 Liaoning China Sanming Iron and Steel Corp 365000 Fujian China School of Materials and Metallurgy Northeastern University Shenyang 110004 Liaoning China

The continuous casting process is used for solidifying molten steel into semi-finished *** technology of secondary cooling is extremely important for output of the casting machine and billet quality.A dynamic water model was introduced,including solidification model in the secondary cooling,feedforward control strategy based on continuous temperature measurement in tundish,and feedback control strategy based on surface temperature *** mathematical model of solidification process was developed according to the principle of solidification,and the solidification model was validated by measuring billet shell thickness through shooting nail and sulfur *** water distribution was calculated by the solidification model according to procedure parameters,and it was adjusted by the other two control strategies *** model was applied on some caster and billet quality was obviously improved,indicating that the dynamic water model is better than conventional ones.

关键词： billet continuous casting secondary cooling water models billet quality

Novel Quantum Genetic Algorithm and Its Applications

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Frontiers of Electrical and Electronic Engineering in China 2006年第1期1卷 31-36页

作者： ZHANG Ge-xiang LI Na JIN Wei-dong HU lai-zhao School of Electrical Engineering Southwest Jiaotong UniversityChengdu 610031China National EW Laboratory Chengdu 610036China

By introducing strong parallelism of quantum computing into evolutionary algorithm,a novel quantum genetic algorithm(NQGA)is *** NQGA,a novel approach for updating the rotation angles of quantum logic gates and a strategy for enhancing search capability and avoiding premature convergence are *** typical complex continuous functions are chosen to test the performance of ***,NQGA is applied in selecting the best feature subset from a large number of features in radar emitter signal *** testing and experimental results of feature selection show that NQGA presents good search capability,rapid convergence,short computing time,and ability to avoid premature convergence effectively.

关键词： genetic algorithm quantum genetic algorithm feature selection recognition

Effects of drive imbalance on the particle emission from a Bose-Einstein condensate in a one-dimensional lattice

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Chinese Physics B 2024年第3期33卷 238-243页

作者：赖龙泉李照 School of Science Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Electronic Engineering Chengdu Technological UniversityChengdu 611730China

Time-periodic driving has been an effective tool in the field of nonequilibrium quantum dynamics,which enables precise control of the particle *** investigate the collective emission of particles from a Bose-Einstein condensate in a one-dimensional lattice with periodic drives that are separate in modulation amplitudes and relative *** addition to the enhancement of particle emission,we find that amplitude imbalances lead to energy shift and band broadening,while typical relative phases may give rise to similar *** results offer insights into the specific manipulations of nonequilibrium quantum systems with tone-varying drives.

关键词： Bose-Einstein condensate particle emission periodic drive

Optimal mining sequence for coal faces under a bedding slope:insight from landslide prevention

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Journal of Mountain Science 2024年第5期21卷 1775-1798页

作者： LI Qingmiao zhao Jianjun LI Zhichao DENG Jie ZUO Jing lai Qiyi State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059China

Repetitive mining beneath bedding slopes is identified as a critical factor in geomorphic disturbances, especially landslides and surface subsidence. Prior research has largely concentrated on surface deformation in plains due to multi-seam coal mining and the instability of natural bedding slopes, yet the cumulative impact of different mining sequences on bedding slopes has been less explored. This study combines drone surveys and geological data to construct a comprehensive three-dimensional model of bedding slopes. Utilizing FLAC3D and PFC2D models, derived from laboratory experiments, it simulates stress, deformation, and failure dynamics of slopes under various mining sequences. Incorporating fractal dimension analysis, the research evaluates the stability of slopes in relation to different mining sequences. The findings reveal that mining in an upslope direction minimizes disruption to overlying strata. Initiating extraction from lower segments increases tensile-shear stress in coal pillar overburdens, resulting in greater creep deformation towards the downslope than when starting from upper segments, potentially leading to localized landslides and widespread creep deformation in mined-out areas. The downslope upward mining sequence exhibits the least fractal dimensions, indicating minimal disturbance to both strata and surface. While all five mining scenarios maintain good slope stability under normal conditions, recalibrated stability assessments based on fractal dimensions suggest that downslope upward mining offers the highest stability under rainfall, contrasting with the lower stability and potential instability risks of upslope downward mining. These insights are pivotal for mining operations and geological hazard mitigation in multi-seam coal exploitation on bedding slopes.

关键词： Bedding rock landslides Mining-induced deformation Bedding slope stability Underground mining sequences Fractal-based strength reduction method

Kinetic study and DFT calculation on the tetracycline abatement by peracetic acid

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Chinese Chemical Letters 2024年第9期35卷 346-350页

作者： Dan-Ying Xing Xiao-Dan zhao Chuan-Shu He Bo lai College of Chemical Engineering Huaqiao UniversityXiamen 361021China State Key Laboratory of Hydraulics and Mountain River Engineering College of Architecture and EnvironmentSichuan UniversityChengdu 610065China

Water contamination by tetracycline(TC)has emerged as an environmental concern owing to its widespread use and antibiotic *** of peracetic acid(PAA)in the water and wastewater treatment has recently been proposed and demonstrated to be effective for TC abatement,yet the underlying reaction kinetics between the PAA and TC are not yet *** explore the reaction kinetics,the effect of solution pH on TC abatement by PAA is studied and the species-specific rate constants are *** ability to donate and accept electrons for different species of TC and PAA is evaluated via density functional theory(DFT)*** pH-dependent apparent second-order rate constants of TC abatement by PAA exhibits the parabolic shape with the maximum at p H 8.5(9.75 L mol^(-1)s^(-1)).This phenomenon is closely related to the speciation of TC and PAA,in which the reaction between PAAH and TTC^(2-)possesses the highest species-specific rate constants according to the kinetic *** DFT calculations suggest that the HOMO of TTCH^(+),TTC,TTC^(-),TTC^(2-)and the LUMO of PAAH and PAA-are–6.40,–6.26,–5.10,–4.94 e V and–0.24,0.60 e V,*** to the DFT calculations,deprotonation of TC and PAA leads to an increase of the HOMO value of TC and the LUMO value of ***,the HOMOTC–LUMOPAAvalues is in good agreement with the trend of species-specific rate constants,which can be used to evaluate the reactivity between PAA and TC with different *** study provides the kinetic data and theoretical basis for the reaction of PAA and TC,which is critical for the application of PAA in the treatment of water and wastewater.

关键词： Peracetic acid Tetracycline Kinetics Rate constants DFT calculation

基于BIM的既有建筑标准加固构件库研究与应用

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建筑技术 2024年第14期55卷 1750-1754页

作者：刘越刘航张莉莉赵来柱张奕慧张兴北京市建筑工程研究院有限责任公司北京100039 北京建工四建工程建设有限公司北京100075

针对传统既有RC结构加固技术,提出标准加固构件族参数化创建方法,并以Revit软件及其原有数据库为基础,建立既有RC结构标准加固构件库。以怀柔金隅兴发地块科研楼及附属设施加固改造项目为例,基于所建立的标准加固构件库,对其某个加固单... 详细信息

针对传统既有RC结构加固技术,提出标准加固构件族参数化创建方法,并以Revit软件及其原有数据库为基础,建立既有RC结构标准加固构件库。以怀柔金隅兴发地块科研楼及附属设施加固改造项目为例,基于所建立的标准加固构件库,对其某个加固单体进行快速建模及分析。研究表明,标准加固构件库参数化技术可短时间内完成对既有RC结构加固的BIM建模,且可直观地了解建筑结构加固技术及加固构件与原结构的空间布局,提前预判加固构件与原结构的交叉矛盾点位并精准定位,并可提前修改优化矛盾点位处的加固方式,显著提升各专业的协同配合及施工效率。

关键词：既有RC结构标准加固构件族 BIM快速建模结构交叉矛盾点

Electromagnetic scattering and imaging simulation of extremely large-scale sea-ship scene based on GPU parallel technology

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Journal of Electronic Science and Technology 2024年第2期22卷 16-23页

作者： Cheng-Wei Zhang Zhi-Qin zhao Wei Yang Li-lai Zhou Hai-Yu Zhu Southwest China Institute of Electronic Technology Chengdu610036China School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu611731China Tencent Company Shenzhen518054China

Aiming to solve the bottleneck problem of electromagnetic scattering simulation in the scenes of extremely large-scale seas and ships,a high-frequency method by using graphics processing unit(GPU)parallel acceleration technique is *** the implementation of different electromagnetic methods of physical optics(PO),shooting and bouncing ray(SBR),and physical theory of diffraction(PTD),a parallel computing scheme based on the CPU-GPU parallel computing scheme is realized to balance computing ***,a multi-GPU framework is further proposed to solve the computational difficulty caused by the massive number of ray tubes in the ray tracing *** using the established simulation platform,signals of ships at different seas are simulated and their images are achieved as *** is shown that the higher sea states degrade the averaged peak signal-to-noise ratio(PSNR)of radar image.

关键词： Multi graphics processing unit Radar imaging Sea-ship Shooting and bouncing rays

New Frontiers on Intracellular cGAS Activation:Molecular Mechanisms,Cellular Signaling,and Therapeutic Strategies

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Chemical Research in Chinese Universities 2024年第4期40卷 632-645页

作者： SONG Xingrui LING Xiaoting LIU Hailong zhao Qiang LI Xiangjun lai Weiyi WANG Hailin State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing10085P.R.China School of Chemical Sciences University of Chinese Academy of SciencesBeijing101408P.R.China

Cyclic GMP-AMP(cGAMP)synthase(cGAS)plays a pivotal role in the innate immune *** the primary DNA sensor in cells,cGAS binds to dsDNA in the cytoplasm and forms cGAS-DNA liquid-liquid phase separation(LLPS)and activates its catalytic *** activation triggers the cGAS-stimulator of interferon genes(STING)signaling pathway,establishing an efficient system for pathogen *** pathogen surveillance,cGAS performs a diverse range of roles,involved in inflammatory response,metabolic homeostasis,DNA damage repair,and cell *** biological functions regulate cellular physiological homeostasis and influence the occurrence and development of *** review provides an overview of the structure,localization,and intracellular biological functions of the cGAS-STING signaling pathway and cGAS-DNA ***,we discuss their contribution to the development of tumors,autoimmune diseases,and inflammatory diseases and highlight the innovative strategies in modulating cGAS activity,either through activation or inhibition,as a promising therapeutic approach.

关键词： Cyclic GMP-AMP(cGAMP)synthase(cGAS)-stimulator of interferon genes(cGAS-STING) Liquid-liquid phase separation(LLPS) Biological function Disease