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Journal of Systems Engineering and Electronics 2018年第6期29卷 1197-1208页

作者： meng xiangfei WANG Ying LI Chao WANG Xiaoyang LYU Maolong Equipment Management and Unmanned Aerial Vehicle Engineering College Air Force Engineering University Satellite Control Center Xi’an

An uncertain multi-objective programming problem is a special type of mathematical multi-objective programming involving uncertain variables. This type of problem is important because there are several uncertain variables in real-world ***, research on the uncertain multi-objective programming problem is highly relevant, particularly those problems whose objective functions are correlated. In this paper, an approach that solves an uncertain multi-objective programming problem under the expected-variance value criterion is proposed. First, we define the basic framework of the approach and review concepts such as a Pareto efficient solution and expected-variance value criterion using an order relation between various uncertain ***, the uncertain multi-objective problem is converted into an uncertain single-objective programming problem via a linear weighted method or ideal point method. Then the problem is transformed into a deterministic single objective programming problem under the expected-variance value criterion. Third, four lemmas and two theorems are proved to illustrate that the optimal solution of the deterministic single-objective programming problem is an efficient solution to the original uncertainty problem. Finally, two numerical examples are presented to validate the effectiveness of the proposed approach.

关键词： uncertainty theory uncertain multi-objective programming expected-variance value criterion

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海洋环流模式的并行I/O优化研究

计算机工程与应用 2024年第17期60卷 263-271页

作者：李云龙祝子杰孟祥飞朱小谦林鹏飞刘海龙李庚国家超级计算天津中心天津300457 国防科技大学气象海洋学院长沙410073 中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室北京100000

极端气象日益加剧,严重影响人类的生产生活。如何有效应对未来极端环境变化,更关乎国际竞争。因此,发展高精度高分辨率的地球系统模式推动气候变化研究至关重要。随着模式精度和分辨率的不断提高,I/O性能已成为制约模式计算效率和可扩... 详细信息

极端气象日益加剧,严重影响人类的生产生活。如何有效应对未来极端环境变化,更关乎国际竞争。因此,发展高精度高分辨率的地球系统模式推动气候变化研究至关重要。随着模式精度和分辨率的不断提高,I/O性能已成为制约模式计算效率和可扩展性的瓶颈。选取典型的海洋环流模式LICOM3作为研究对象,基于天河HPC系统,详细测试和分析了模式的I/O逻辑过程,发现在3K进程规模下I/O可占整体运行时间一半以上,是限制模式计算性能的关键因素。为此,设计并实现了主要输出过程的MPI-IO并行优化方案,显著提升了模式运行效率,基本解决了模式I/O瓶颈。测试结果表明,MPI-IO并行优化方案将输出时间占比从48.58%降到2.44%,将输出带宽提升到6.21 GB/s,约是原程序的14倍。此外,进一步分析了影响并行I/O性能的因素,以期为相关工作提供参考和指导。

关键词：并行I/O优化海洋环流模式 MPI-IO

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日照车辆段铁路货车用计量器具管理系统研发

铁道技术监督 2024年第8期52卷 21-26页

作者：万心心孟祥飞薛彦征中国铁路济南局集团公司日照车辆段山东日照276826

基于日照车辆段铁路货车计量器具配置及管理实际,提出计量器具管理系统要求,研发计量器具管理系统,并在日照车辆段应用。结果表明:应用计量器具管理系统,能够实现计量器具全过程管理,合理制订计量器具检定计划,提高计量器具管理效率,规... 详细信息

基于日照车辆段铁路货车计量器具配置及管理实际,提出计量器具管理系统要求,研发计量器具管理系统,并在日照车辆段应用。结果表明:应用计量器具管理系统,能够实现计量器具全过程管理,合理制订计量器具检定计划,提高计量器具管理效率,规范计量工作流程,实现计量器具管理信息化。

关键词：铁路货车车辆段计量器具管理系统

Kinematic-mapping-model-guided analysis and optimization of 2-PSS&1-RR circular-rail parallel mechanism for fully steerable phased array antennas

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New approach for uncertain random multi-objective programming problems based on C_(ESD) criterion

Defence technology 2024年第8期 136页

作者： Guodong Tan xiangfei meng Xuechao Duan Lulu Cheng Dingchao Niu Shuai He Dan Zhang

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Journal of Systems Engineering and Electronics 2021年第3期32卷 619-630页

作者： SUN Yun WANG Ying meng xiangfei FU Chaoqi LUO Chengkun Equipment Management and UAV Engineering College Air Force Engineering UniversityXi’an 710051China Air Force Command College Beijing 100097China Beijing Institute of System Engineering Beijing 100101China

To overcome the defects that the traditional ap-proach for multi-objective programming under uncertain ran-dom environment(URMOP)neglects the randomness and uncer-tainty of the problem and the volatility of the results,a new ap-proach is proposed based on expected value-standard devi-ation value criterion(C_(ESD) criterion).Firstly,the effective solution to the URMOP problem is defined;then,by applying sequence relationship between the uncertain random variables,the UR-MOP problem is transformed into a single-objective program-ming(SOP)under uncertain random environment(URSOP),which are transformed into a deterministic counterpart based on the C_(ESD) *** the validity of the new approach is proved that the optimal solution to the SOP problem is also effi-cient for the URMOP problem;finally,a numerical example and a case application are presented to show the effectiveness of the new approach.

关键词： chance theory independent-uncertain random multi-objective programming expected value-standard derivation value criterion(C_(ESD)criterion)

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省级电网储能发展规模双层优化评估方法

供用电 2024年第3期41卷 32-41页

作者：孟祥飞张惠雯孙东磊郑婉婷王耀孙毅王守相国网山东省电力公司经济技术研究院山东济南250021 天津大学智能电网教育部重点实验室天津300072

随着新型电力系统建设的不断推进,储能在电网中得到大量应用,在此背景下对省级电网储能的发展规模进行综合评估具有重要意义。首先,从省级电网储能的经济性、可靠性、利用率、环保性4个维度出发,建立了多维储能评价指标体系;同时提出了A... 详细信息

随着新型电力系统建设的不断推进,储能在电网中得到大量应用,在此背景下对省级电网储能的发展规模进行综合评估具有重要意义。首先,从省级电网储能的经济性、可靠性、利用率、环保性4个维度出发,建立了多维储能评价指标体系;同时提出了AHP-改进CRITIC的权重确定方法,充分考虑了指标数据的对比强度、相关性和离散程度,将主客观权重结合确定各项指标的组合权重,避免了采用单一方法的极端性。其次,提出了储能双层优化评估模型,上层以省级电网的综合成本最小为目标函数,优化储能和新能源出力曲线;下层建立储能VIKOR多准则评价模型,计算不同储能配置方案下的指标体系并进行综合评估。最后,以某省级电网为例,对所提方法的有效性和可行性进行了验证。

关键词：储能发展规模省级电网组合权重双层优化评估 VIKOR

Enhanced Atom Search Optimization Based Optimal Control Parameter Tunning of PMSG for MPPT

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Energy Engineering 2022年第1期119卷 145-161页

作者： Xin He Ping Wei Xiaoyan Gong xiangfei meng Dong Shan Jiawei Zhu Yunnan Power Grid Co. Ltd.Education and Training Evaluation CenterKunming650041China Yunnan Power Grid Co. Ltd.Kunming650041China Yunan Dianzhong Huineng Intelligent Energy Co. Ltd.Kunming650041China Zhengzhou Wante Electric Co. Ltd.Zhengzhou450500China Chang’an University Xi’an710064China

For the past few years,wind energy is the most popular non-traditional resource among renewable energy resources and it’s significant to make full use of wind energy to realize a high level of generating ***,diverse maximum power point tracking(MPPT)methods have been designed for varying speed operation of wind energy conversion system(WECS)applications to obtain optimal power ***,a novel and metaheuristic technique,named enhanced atom search optimization(EASO),is designed for a permanent magnet synchronous generator(PMSG)based WECS,which can be employed to track the maximum power *** of the most promising benefits of this technique is powerful global search capability that leads to fast response and high-quality optimal ***,in contrast with other conventional meta-heuristic techniques,EASO is extremely not relying on the original solution,which can avoid sinking into a low-quality local maximum power point(LMPP)by realizing an appropriate trade-off between global exploration and local *** last,simulations employing two case studies through Matlab/Simulink validate the practicability and effectiveness of the proposed techniques for optimal proportional-integral-derivative(PID)control parameters tuning of PMSG based WECS under a variety of wind conditions.

关键词： Enhanced atom search optimization permanent magnetic synchronous generator maximum power point tracking wind energy conversion system

个体化健康教育在传染病防控工作中的应用效果分析

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中国医药指南 2024年第21期22卷 109-111页

作者：周媛媛李宏孟祥飞徐莘鹏中部战区疾病预防控制中心军事作业医学防护科北京100042

目的探究在传染病防控工作中的运用个体化健康教育的效果和价值。方法选择2021年6月至2023年6月北京市中青年社会人员500名作为研究对象,采用随机数字表法将选取的研究对象平均分成对照组250名与试验组250名,对比两组研究人员的健康教... 详细信息

目的探究在传染病防控工作中的运用个体化健康教育的效果和价值。方法选择2021年6月至2023年6月北京市中青年社会人员500名作为研究对象,采用随机数字表法将选取的研究对象平均分成对照组250名与试验组250名,对比两组研究人员的健康教育指导满意度、传染病防控知识掌握度评分以及传染病发生情况。结果对照组的健康教育指导满意度低于试验组(P<0.05);试验组的传染病防控知识掌握度评分高于对照组(P<0.05);试验组发生流行性感冒、甲肝或乙肝、肺结核、艾滋病等传染性疾病低于对照组(P<0.05)。结论个体化健康教育在传染病防控工作中的效果有目共睹,重视和加强个体化健康教育能有效减少传染病发病情况,改善社会人员对传染病防治的意识和水平,提升传染病防控工作满意度,进一步推进传染病防治工作,有利于健康卫生事业稳定发展。

关键词：传染病预防与控制个体化健康教育应用价值

mSwap: a large-scale image-compositing method with optimal m-ary tree

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Advances in Aerodynamics 2021年第1期3卷 49-65页

作者： Min Hou Chongke Bi Fang Wang Liang Deng Gang Zheng xiangfei meng College of Intelligence and Computing Tianjin UniversityTianjinChina Computational Aerodynamics Institute China Aerodynamics Research and Development CenterMianyangChina National Supercomputer Center in Tianjin TianjinChina.

With the increasing of computing ability,large-scale simulations have been generating massive amounts of data in ***-last parallel rendering is the most classical image compositing method for large-scale scientific ***,in the stage of image compositing,the sort-last method may suffer from scalability problem on large-scale *** image compositing algorithms tend to perform well in certain *** instance,Direct Send is well on small and medium scale;Radix-k gets well performance only when the k-value is appropriate and so *** this paper,we propose a novel method named mSwap for scientific visualization in aerodynamics,which uses the best scale of processors to make sure its performance at the *** groups the processors that we can use with a(m,k)table,which records the best combination of m(the number of processors in subgroup of each group)and k(the number of processors in each group).Then in each group,using a m-ary tree to composite the image for reducing the communication of ***,the image is composited between different groups to generate the final *** performance and scalability of our mSwap method is demonstrated through experiments with thousands of processors.

关键词： Parallel rendering Sort-last Image compositing mSwap m-ary tree

In-situ sampling investigation of deposition and corrosion of convective heating surfaces in a grate type municipal solid waste incineration plant:a case study

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Waste Disposal and Sustainable Energy 2021年第4期3卷 299-308页

作者： Xiaobo Liu Qian Chen Ling Long xiangfei meng Guojun Lv Qunxing Huang Xuguang Jiang State Key Laboratory of Clean Energy Utilization Institute for Thermal Power EngineeringZhejiang UniversityHangzhouZhejiang 310027China Zhejiang University Qingshanhu Energy Research Center LinanHangzhouZhejiangChina

Metal corrosion and ash deposition are two common issues in municipal solid waste incineration(MSWI)*** in-situ sampling investigation was conducted in an MSWI plant in Jiangsu,*** deposit samples were collected from 6 convective heating surfaces including the reheaters,superheaters,and *** corrosion samples were obtained from a ruptured tube cut from the tertiary *** element composition,crystal phases,and morphology of deposit and corrosion samples were characterized and *** results show that S contents of these deposits are 32-45 wt%,considerable Cl(10.63 wt%)was only detected in the deposits of the tertiary *** composition of the deposits varies with the location because the flue gas temperature determines the thermodynamic trend of the sulfation reactions of different chlorides and the SO_(2)equilibrium partial pressure required in these *** sulfates mainly exist in deposits at high temperatures(above approximately 500℃).Whereas alkali metal sulfates are the main component of deposits at low temperatures(below approximately 500℃).A multi-layer structure is exhibited on the cross-section of the corrosion *** discovery of Cl in the interface between the matrix and the oxide layer confirms that Cl can penetrate the outer oxide ***,polysulfate components were observed inside the metal oxide layers,which indicates that a melt has occurred *** study has provided a better understanding of ash deposition and corrosion phenomena in MSWI systems and more emphasis should be placed on the research of ash deposition and corrosion mechanisms.

关键词： Municipal solid waste Ash deposition High temperature corrosion Sulfate Chloride