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Recent Progress in Numerical Atmospheric Modeling in China 预览
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作者 Rucong YU Yi ZHANG +4 位作者 Jianjie WANG Jian LI Haoming CHEN Jiandong GONG Jing CHEN 《大气科学进展:英文版》 SCIE CAS CSCD 2019年第9期938-960,共23页
This review summarizes the scientific and technical progress in atmospheric modeling in China since 2011,including the dynamical core,model physics,data assimilation,ensemble forecasting,and model evaluation strategie... This review summarizes the scientific and technical progress in atmospheric modeling in China since 2011,including the dynamical core,model physics,data assimilation,ensemble forecasting,and model evaluation strategies.In terms of the dynamical core,important efforts have been made in the improvement of the existing model formulations and in exploring new modeling approaches that can better adapt to massively parallel computers and global multiscale modeling.With regard to model physics,various achievements in physical representations have been made,especially a trend toward scale-aware parameterization for accommodating the increase of model resolution.In the field of data assimilation,a 4D-Var system has been developed and is operationally used by the National Meteorological Center of China,and its performance is promising.Furthermore,ensemble forecasting has played a more important role in operational forecast systems and progressed in many fundamental techniques.Model evaluation strategies,including key performance metrics and standardized experimental protocols,have been proposed and widely applied to better understand the strengths and weaknesses of the systems,offering key routes for model improvement.The paper concludes with a concise summary of the status quo and a brief outlook in terms of future development. 展开更多
关键词 NUMERICAL MODELING ATMOSPHERIC MODELING WEATHER and CLIMATE MODELING
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Efficient multi-response adaptive sampling algorithm for construction of variable-fidelity aerodynamic tables
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作者 Maxim TYAN Jae-Woo LEE 《中国航空学报:英文版》 SCIE EI CAS CSCD 2019年第3期547-558,共12页
Adaptive sampling is an iterative process for the construction of a global approximation model. Most of engineering analysis tools computes multiple parameters in a single run. This research proposes a novel multi-res... Adaptive sampling is an iterative process for the construction of a global approximation model. Most of engineering analysis tools computes multiple parameters in a single run. This research proposes a novel multi-response adaptive sampling algorithm for simultaneous construction of multiple surrogate models in a time-efficient and accurate manner. The new algorithm uses the Jackknife cross-validation variance and a minimum distance metric to construct a sampling criterion function. A weighted sum of the function is used to consider the characteristics of multiple surrogate models. The proposed algorithm demonstrates good performance on total 22 numerical problems in comparison with three existing adaptive sampling algorithms. The numerical problems include several two-dimensional and six-dimensional functions which are combined into singleresponse and multi-response systems. Application of the proposed algorithm for construction of aerodynamic tables for 2 D airfoil is demonstrated. Scaling-based variable-fidelity modeling is implemented to enhance the accuracy of surrogate modeling. The algorithm succeeds in constructing a system of three highly nonlinear aerodynamic response surfaces within a reasonable amount of time while preserving high accuracy of approximation. 展开更多
关键词 Adaptive sampling Aerodynamic DATABASE Multi-response system Surrogate MODELING VARIABLE FIDELITY MODELING
Insight of surface treatments for CMOS compatibility of InAs nanowi
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作者 Daya S. Dhungana Anne Hemeryck +3 位作者 Nicolo Sartori Pier-Francesco Fazzini Filadelfo Cristiano Sebastien R. Plissard 《纳米研究:英文版》 SCIE EI CAS CSCD 2019年第3期581-586,共6页
A CMOS compatible process is prese nted in order to grow self-catalyzed InAs nano wires on silic on by molecular beam epitaxy. The crucial step of this process is a new in-situ surface preparation under hydrogen (gas ... A CMOS compatible process is prese nted in order to grow self-catalyzed InAs nano wires on silic on by molecular beam epitaxy. The crucial step of this process is a new in-situ surface preparation under hydrogen (gas or plasma) during the substrate degassing combined with an in-situ arsenic ann eali ng prior to growth. Morphological and structural characterizati ons of the InAs nano wires are prese nted and growth mecha nisms are discussed in detail. The major in flue nee of surface termi nation is exposed both experime ntally and theoretically using statistics on ensemble of nanowires and density functional theory (DFT) calculations. The differences observed between Molecular Beam Epitaxy (MBE) and Metal Organic Vapor Phase Epitaxy (MOVPE) growth of I nAs nano wires can be explai ned by these differe nt surfaces termi nations. The transition between a vapor solid (VS) and a vapor liquid solid (VLS) growth mechanism is presented. Optimized growth conditions lead to very high aspect ratio nano wires (up to 50 nm in diameter and 3 micron in len gth) without passi ng the 410℃ thermal limit, which makes the whole process CMOS compatible. Overall, our results suggest a new method for surface preparation and a possible tuning of the growth mechanism using different surface termi nations. 展开更多
关键词 Ⅲ-Ⅴ SEMICONDUCTORS on silicon INAS NANOWIRES self-catalyzed GROWTH hydrogen preparation GROWTH MODELING density functional theory (DFT) MODELING
Separation, Quantification and Structural Study of (+)-Catechin and (-)-Epicatechin by Ion Mobility Mass Spectrometry Combined with Theoretical Algorithms
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作者 Xinyu Bian Bing Zhao +4 位作者 Bo Pang Zhong Zheng Shu Liu Zhiqiang Liu Fengrui Song 《中国化学:英文版》 SCIE CAS CSCD 2019年第6期581-587,共7页
Two catechin epimers and their non-covalent complexes with γ-cyclodextrin were studied by using ion mobility coupled with mass spectrometry (IM-MS). Rapid separation of complexes was achieved with the peak-to-peak re... Two catechin epimers and their non-covalent complexes with γ-cyclodextrin were studied by using ion mobility coupled with mass spectrometry (IM-MS). Rapid separation of complexes was achieved with the peak-to-peak resolution reaching 0.86 after optimization of IM condition. Collision cross section (CCS) was measured to explore the structural difference of complexes. A gap of 11.75 A^2 between two complexes was found. Molecular modeling and theoretical CCS calculation were adopted to explain the measurement results. Two binding ways of both complexes were found and the calculated CCS corresponds accurately to the measured CCS. Quantification of catechins in mixtures was performed and the relative error was less than 15%, indicating the effectiveness of quantification by IM-MS. 展开更多
关键词 IM-MS CATECHIN cycodextrin THEORETICAL modeling COLLISION cross section CHIRAL resolution
火电机组FCB炉膛压力控制系统的优化 预览
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作者 宫远洋 张召鹏 王迪 《东北电力大学学报》 2019年第3期74-78,共5页
为研究火电机组FCB过程锅炉炉膛负压控制技术,利用机理方法建立锅炉负压数学模型,分析了常规工况炉膛压力控制方式,提出在FCB过程中,炉膛压力控制系统引入煤量作为静态补偿的控制方式;并对所提出的炉膛压力控制方式与常规的炉膛压力控... 为研究火电机组FCB过程锅炉炉膛负压控制技术,利用机理方法建立锅炉负压数学模型,分析了常规工况炉膛压力控制方式,提出在FCB过程中,炉膛压力控制系统引入煤量作为静态补偿的控制方式;并对所提出的炉膛压力控制方式与常规的炉膛压力控制方式进行了仿真试验.仿真结果表明:在FCB过程中,炉膛压力控制系统引入煤量作为静态补偿可有效减小炉膛负压波动;对FCB过程炉膛压力控制系统所加的煤量静态补偿给予适当的增益可有效的减小FCB过程中炉膛负压下降的最低值.按照此种控制方式对炉膛压力控制系统进行优化,正常工况采用常规控制方式,FCB工况采用此控制方式,可有效减小FCB过程中炉膛压力波动,可有效减小FCB过程炉膛负压下降最低值,利于FCB过程炉内燃烧稳定. 展开更多
关键词 快速甩负荷 建模 炉膛压力控制 静态补偿
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双向DC/DC变换器Boost模式下的建模及控制
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作者 冷文鹏 逄海萍 《电子测量技术》 2019年第6期6-11,共6页
非隔离式的交错并联双向DC/DC变换器在混合直流供电系统有着广泛的应用,采用两路交错并联的拓扑结构可以有效减小DC/DC变换器的输出电压和电流纹波。为了提高双向DC/DC变换器的动态性能和过载保护性能,本文基于超级电容的备用电源储能系... 非隔离式的交错并联双向DC/DC变换器在混合直流供电系统有着广泛的应用,采用两路交错并联的拓扑结构可以有效减小DC/DC变换器的输出电压和电流纹波。为了提高双向DC/DC变换器的动态性能和过载保护性能,本文基于超级电容的备用电源储能系统,以两路交错并联Buck/Boost变换器在Boost模式下的各个模态作为模型进行分析,详细介绍了各个模态的工作过程;在导出其原始大信号模型的基础上,采用小信号线性化的方法进一步推导出其交流小信号状态方程及其等效电路模型,并得到了传递函数。以此为依据设计优化控制器的补偿网络,提高了系统的稳定性和瞬态响应速度,最后进行实验验证,结果表明,双闭环的控制策略实现了恒压限流且可以快速响应,满足实际工程的应用需要。 展开更多
关键词 交错并联 直流变换器 超级电容 建模 双闭环控制 过载保护
Simulating soil loss rate in Ekbatan Dam watershed using experimental and statistical approaches 预览
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作者 Seyed Davood Mohammadi Fateme Naseri Roghaye Abri 《国际泥沙研究:英文版》 SCIE 2019年第3期226-239,共14页
Reservoir sedimentation resulting fromwater erosion is an important environmental issue inmany countries where storage of water is crucial for economic and agricultural development.Therefore,this paper reports results... Reservoir sedimentation resulting fromwater erosion is an important environmental issue inmany countries where storage of water is crucial for economic and agricultural development.Therefore,this paper reports results from analysis of the soil hydrological response,i.e.soil water erosion,to simulated rainfall resulting in sediment accumulation at the reservoir of Ekbatan Dam(Hamedan province,Iran).Also,another objective of this study was to simulate the future trends in reservoir sedimentation(soil loss rate;SLR)from indoor rainfall simulator data by multiple linear regression(MLR)and Artificial Neural Networks(ANNs).For this research,three sampling points with different types of soils were chosen including clayey sand soil(SC-SM),silty soil(ML),and clayey soil(CL).The input parameters were slope gradient(sin θ),soil type(St),water content(w),dry density(γd),shear strength(τ),unconfined compressive strength(qu),permeability(k),and California bearing ratio(CBR).Using MLR and ANN methods,7 models were developed with 2 constant predictors(i.e.sin θ and St)and 6 free predictors which were added in each step one by one.Among MLR models,model 5 with St,sin θ,γd,τ,w,and qu as input parameters was statistically significant.Among ANN models,model 4 with St,sin θ,?d,τ,and w as input parameters,9 nodes,and 1 hidden layer was statistically significant.The root mean square error(RMSE),mean error(ME),and correlation coefficient(R)values were 1.433 kg/m^2 h,0.0195 kg/m^2 h,and 0.698 for the MLRmodel and 0.38 kg/m^2 h,0.151 kg/m^2 h,and 0.98 for the ANN model,respectively.These results show that the ANN model could better predict the SLR in comparison to the MLR model.The results also demonstrate that shear strength,among the strength parameters,had a greater impact on the SLR than compressive strengths(qu and CBR).Last but not the least,the reservoir sedimentationwas estimated for all methods and compared with the observed data.The results indicate that the ANN model is more appropriate for forecasting/simulating the s 展开更多
关键词 SOIL EROSION CATCHMENT RAINFALL simulation Sediment yield estimation SOIL properties Modeling
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数控机床伺服系统参数自整定的研究 预览
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作者 叶海平 《佳木斯大学学报:自然科学版》 CAS 2019年第2期250-253,共4页
通过分析数控机床伺服系统的控制原理,确定伺服系统的控制原理,分析各环的控制参数,整定出伺服系统的控制结构图。采用传统的PID控制器自整定方法,已不能满足伺服系统的要求。提出利用单纯形法来自整定伺服系统PID控制器,并且提供了详... 通过分析数控机床伺服系统的控制原理,确定伺服系统的控制原理,分析各环的控制参数,整定出伺服系统的控制结构图。采用传统的PID控制器自整定方法,已不能满足伺服系统的要求。提出利用单纯形法来自整定伺服系统PID控制器,并且提供了详细的整定过程。在MATLAB的simulink里面进行建模仿真,与Z-N法进行仿真比较,单纯形法整定伺服系统PID控制器参数,系统运行的响应速度更快。 展开更多
关键词 自整定 数控 建模 单纯形法 PID控制器
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Multi-disciplinary design optimization with variable complexity modeling for a stratosphere airship
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作者 Shi YIN Ming ZHU Haoquan LIANG 《中国航空学报:英文版》 SCIE EI CAS CSCD 2019年第5期1244-1255,共12页
This paper proposes a hybrid architecture based on Multi-disciplinary Design Optimization(MDO) with the Variable Complexity Modeling(VCM) method, to solve the problem of general design optimization for a stratosphere ... This paper proposes a hybrid architecture based on Multi-disciplinary Design Optimization(MDO) with the Variable Complexity Modeling(VCM) method, to solve the problem of general design optimization for a stratosphere airship. Firstly, MDO based on the Concurrent SubSpace Optimization(CSSO) strategy is improved for handling the subsystem coupling problem in stratosphere airship design which contains aerodynamics, structure, and energy. Secondly, the VCM method based on the surrogate model is presented for reducing the computational complexity in high-fidelity modeling without loss of accuracy. Moreover, the global-to-local optimization strategy is added to the architecture to enhance the process. Finally, the result gives a prominent stratosphere airship general solution that validates the feasibility and efficiency of the optimization architecture. Besides, a sensitivity analysis is conducted to outline the critical impact upon stratosphere airship design. 展开更多
关键词 MULTI-DISCIPLINARY design optimization Sensitivity analysis STRATOSPHERE AIRSHIP Surrogate model VARIABLE COMPLEXITY MODELING
差动调速风电机组传动系统的动态特性研究 预览
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作者 苏睿 杨琪 +3 位作者 刘平平 李华志 黄杨森 王钧 《烟台大学学报:自然科学与工程版》 CAS 2019年第1期79-83,共5页
基于考虑时变啮合刚度、齿侧间隙、阻尼、综合啮合误差等参量的动态啮合力方程,建立了差动调速风电机组传动系统的纯扭转时变非线性动力学模型.在指定输入条件下,用SIMULINK仿真得到了主输入轴、副输入轴和输出轴对应齿轮的动态啮合力... 基于考虑时变啮合刚度、齿侧间隙、阻尼、综合啮合误差等参量的动态啮合力方程,建立了差动调速风电机组传动系统的纯扭转时变非线性动力学模型.在指定输入条件下,用SIMULINK仿真得到了主输入轴、副输入轴和输出轴对应齿轮的动态啮合力、啮合线上相对位移以及扭转速度曲线,并分析了动态啮合力曲线的频率分布. 展开更多
关键词 风电机组 差动调速 建模 动力学
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一种水泥回转窑的建模方法 预览
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作者 刘号召 《中小企业管理与科技》 2019年第16期184-185,共2页
论文介绍了一种水泥干法回转窑的建模方法,全范围模拟回转窑生产过程的物料传递、化学反应进程及热量交换,计算窑内各处熟料成分变化、物料温度,为水泥生产企业提升熟料产品质量,避免过烧,降低单位产品耗能提供分析、决策工具。
关键词 熟料回转窑 建模 化学反应进程
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Multi-parameter quantitative assessment of 3D geological models for complex fault-block oil reservoirs 预览
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作者 TAN Xuequn LIU Yunyan +3 位作者 ZHOU Xiaozhou LIU JiANDang ZHENG Rongchen JIA Chao 《石油勘探与开发:英文版》 2019年第1期194-204,共11页
In the field of 3 D geologic modeling, researchers often pay more attention to modeling methods and workflows, but neglect the quantitative evaluation of models. If the evaluation is narrowed to the same reservoir typ... In the field of 3 D geologic modeling, researchers often pay more attention to modeling methods and workflows, but neglect the quantitative evaluation of models. If the evaluation is narrowed to the same reservoir type, the comparability and practicality of quantitative assessment will be emerging. The evaluation system should include three parts: data verification, geological understanding and process check. Data verification mainly involves testing the accuracy of local prediction with actual data, and geological understanding is to examine whether the global estimation honors geological principles and prior insights. Process check is also indispensable to avoid occasionality. To this end, we produced a set of assessment criteria, taking complex fault-block sandstone oil reservoir as an example. To be specific, thirteen characteristic parameters were totally selected, setting weights according to their rated importance, formulating three-level evaluation standards in a centesimal system for each characteristic parameter, and obtaining the final assessment based on the cumulative score. The results indicate that such evaluation can not only access the quality of the model objectively and comprehensively, but also identify the aspects in need of improvement through the deduction items. 展开更多
关键词 RESERVOIR characterization GEOLOGICAL modeling quality evaluation characteristic PARAMETER RESERVES estimation faultblock oil RESERVOIR
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制造车间仿真系统中运输设备碰撞问题的解决方法研究 预览
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作者 郝慧慧 马涛 +2 位作者 赵富 班永华 赵宁 《新技术新工艺》 2019年第3期37-42,共6页
随着计算机仿真技术的快速发展,越来越多的企业或科研机构应用仿真技术进行系统的仿真与优化研究,提前验证系统设计方案,量化评估系统能力,实现系统的优化升级。可知,仿真效果的真实性直接影响着仿真结果的可信度。针对某企业部件装配... 随着计算机仿真技术的快速发展,越来越多的企业或科研机构应用仿真技术进行系统的仿真与优化研究,提前验证系统设计方案,量化评估系统能力,实现系统的优化升级。可知,仿真效果的真实性直接影响着仿真结果的可信度。针对某企业部件装配生产线,应用Flexsim系统仿真软件对其进行了建模仿真,针对仿真模型中存在的运输设备碰撞问题提出了一套全新的解决方案,并应用Flexsim软件对方案进行了仿真验证,证实了该方案的可行性。 展开更多
关键词 碰撞 运输设备 FLEXSIM 生产线 建模 仿真
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光伏阵列在局部阴影下的建模与特性分析 预览 被引量:1
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作者 王潇然 边敦新 《现代电子技术》 北大核心 2019年第8期109-112,117共5页
光伏阵列在阴影影响下输出特性将发生变化,传统的光伏阵列模型不再适用。为了研究光伏阵列在阴影影响下的输出特性,在单个光伏电池四参数工程模型的基础上,推导出适用于在不同光照下2个光伏电池串联的输出模型。在Matlab中对其仿真并与... 光伏阵列在阴影影响下输出特性将发生变化,传统的光伏阵列模型不再适用。为了研究光伏阵列在阴影影响下的输出特性,在单个光伏电池四参数工程模型的基础上,推导出适用于在不同光照下2个光伏电池串联的输出模型。在Matlab中对其仿真并与实验结果做比较,验证推导模型的准确性。把该模型推广到多个光伏电池串并联的光伏阵列中,引入遮光率,在Matlab中对光伏阵列在不同遮光率下进行仿真,分析其仿真结果,总结出光伏阵列在局部阴影影响下输出特性的变化规律。 展开更多
关键词 光伏阵列 特性分析 局部阴影 建模 输出特性 仿真分析
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三栖四旋翼模型与PID控制设计研究 预览
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作者 张鹏 何振鹏 +2 位作者 张永浩 张志远 迟炳哲 《河南科技》 2019年第7期83-85,共3页
本文在三栖四旋翼机体结构和飞行原理的基础上,利用牛顿-欧拉法对无人机进行动力学受力分析,建立相应数学模型,通过四旋翼无人机的数学模型分析,设计了比例-积分-微分(PID)控制器,利用MATLAB进行仿真验证。
关键词 三栖四旋翼 建模 PID SIMULINK
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锂离子电池模型研究综述 预览
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作者 杨杰 王婷 +6 位作者 杜春雨 闵凡奇 吕桃林 张熠霄 晏莉琴 解晶莹 尹鸽平 《储能科学与技术》 CAS CSCD 2019年第1期58-64,共7页
简述了锂离子电池等效电路模型和电化学模型的研究进展。由于具有耗时短、技术开发效率高等优点,仿真模型被广泛应用于锂离子电池衰减机制分析、状态诊断及寿命预测。锂离子电池仿真模型主要包括等效电路模型和电化学机理模型。等效电... 简述了锂离子电池等效电路模型和电化学模型的研究进展。由于具有耗时短、技术开发效率高等优点,仿真模型被广泛应用于锂离子电池衰减机制分析、状态诊断及寿命预测。锂离子电池仿真模型主要包括等效电路模型和电化学机理模型。等效电路模型主要应用于锂离子电池荷电状态诊断。电化学机理模型主要应用于锂离子电池衰减机制分析和健康状态诊断,并为寿命预测提供技术支持。等效电路模型的结构过于单一,在锂离子电池寿命后期适用性降低。电化学机理模型结构复杂,计算量大,在线性应用能力较差。总结了现阶段常用的锂离子电池等效电路模型和电化学模型的建模原理及模型结构,阐述了每种模型在电池研究中的具体应用,并分析了其各自的优势及局限性。通过以上分析,并结合最新的建模理论,对建立具有高精度、高适用性锂离子电池仿真模型的研究方向进行了展望。 展开更多
关键词 锂离子电池 仿真模型 状态诊断
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基于BIM技术的深基坑可视化建模技术初探
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作者 刘琼 李能 《江西测绘》 2019年第1期6-8,共3页
深基坑工程监测具有监测周期长、监测频率高、监测内容多、监测数据多等特点,变形监测的可视化可以直观的将监测数据与设计值进行对比、分析,对于及时、可靠确定和优化下一步施工工艺和参数提供了极大的便利,因此可视化实现对深基坑监... 深基坑工程监测具有监测周期长、监测频率高、监测内容多、监测数据多等特点,变形监测的可视化可以直观的将监测数据与设计值进行对比、分析,对于及时、可靠确定和优化下一步施工工艺和参数提供了极大的便利,因此可视化实现对深基坑监测显得极为重要。基于BIM技术,利用Autodesk Revit软件实现了深基坑监测工作的可视化,并成功应用在海口市某深基坑监测项目中,产生了一定的经济效益和社会效益。 展开更多
关键词 BIM 深基坑 可视化 建模
基于COSMOS的液压支架结构优化
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作者 巩明 杨玉坡 李建 《煤矿机械》 北大核心 2019年第5期186-188,共3页
利用SolidEdge软件对ZY11000/26/55D液压支架建模,并通过COSMOS软件进行有限元分析。通过仿真结果,及早发现设计中的不足之处,优化液压支架关键部件的结构,提高所设计液压支架的安全性和稳定性,为类似液压支架结构优化提供一定的参考。
关键词 建模 液压支架 有限元分析
燃气发电机组并网无功调节建模及仿真研究 预览
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作者 林祥 《国网技术学院学报》 2019年第3期15-18,共4页
采用MUSE数字仿真平台,对燃气发电机的无功调节特性和原理进行了分析,建立了能够准确反映发电机无功调节的模型,包括电气潮流系统、发电机励磁系统、燃气发电机等部分,以实时仿真结果与现场实际结果的对比表明,该仿真模型与实际无功调... 采用MUSE数字仿真平台,对燃气发电机的无功调节特性和原理进行了分析,建立了能够准确反映发电机无功调节的模型,包括电气潮流系统、发电机励磁系统、燃气发电机等部分,以实时仿真结果与现场实际结果的对比表明,该仿真模型与实际无功调节特性具有很高的一致性。 展开更多
关键词 发电机 无功调节 建模 仿真
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基于多目标分布估计算法的地铁网络化应急站点选址
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作者 段晓红 李晓婉 《安全与环境学报》 CAS CSCD 北大核心 2019年第3期923-930,共8页
为提升地铁网络的应急救援能力,提出兼顾地下和地面交通两种运输方式的应急资源网络化共享模式,并建立多目标优化模型,对应急站点进行优化选址。模型以应急站点数量最少和总响应时间最短为优化目标,地铁车站重要程度为关键因素,求解各... 为提升地铁网络的应急救援能力,提出兼顾地下和地面交通两种运输方式的应急资源网络化共享模式,并建立多目标优化模型,对应急站点进行优化选址。模型以应急站点数量最少和总响应时间最短为优化目标,地铁车站重要程度为关键因素,求解各地铁车站的优化覆盖方案。提出了一种多目标分布估计算法,该算法采用拥挤比较算子和锦标赛选择算法获取优势群体,借助概率模型描述可行解的离散分布,并不断更新概率模型来实现种群的进化。运用建立的模型和算法求解北京市局部地铁网络应急站点选址问题,最终获得满足地面交通运输时效、并符合问题优化目标的Pareto最优解集。与NSGE-Ⅱ算法相比,多目标分布估计算法提前123代开始收敛,且针对最小化问题,多目标分布估计算法最优解的两个目标函数值较NSGE-Ⅱ算法分别减小64%和29%。可见,模型符合地铁应急站点选址问题的决策规则;多目标分布估计算法有效地缩小了决策空间,它比NSGE-Ⅱ算法更快地收敛,且能够获得更为优化的应急站点选址方案。 展开更多
关键词 安全管理工程 地铁车站 应急服务 选址 模型 算法
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