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以要素分析谈多法规标准的质量管理体系融合
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作者 徐娜 孙四中 +3 位作者 高峰 彭诗棋 贾伟江 邓礼述 《核标准计量与质量》 2023年第4期38-42,共5页
目前,一个组织遵循和贯彻落实多个质量法规标准的情况越来越多。文章以科工法[2005]311号《核设施质量保证规定》和GB/T 19001《质量管理体系要求》的融合为例,通过两者的对比,分析异同点,研究如何在已有GB/T 19001体系的组织内建立和... 目前,一个组织遵循和贯彻落实多个质量法规标准的情况越来越多。文章以科工法[2005]311号《核设施质量保证规定》和GB/T 19001《质量管理体系要求》的融合为例,通过两者的对比,分析异同点,研究如何在已有GB/T 19001体系的组织内建立和运行满足科工法[2005]311号等法规的融合式的项目质量保证体系,以满足各相关方的关切,为有类似体系融合需求的组织提供参考。 展开更多
关键词 核设施 要素分析 多法规标准 质量管理体系融合
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基于ISO 19443-2018一体化质量管理体系研究
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作者 赵中辉 《一重技术》 2023年第3期51-53,37,共4页
通过对ISO19443-2018标准及国内核工程设备制造单位质量管理体系建设现状的分析,探讨建立一体化质量管理体系的可行性,提升质量管理体系的适用范围,减少体系文件的数量,提高管理效率。
关键词 ISO 19443 一体化 多法规
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Optimal path planning method of electric vehicles considering power supply 被引量:5
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作者 GUO Dong LI Chao-chao +8 位作者 YAN Wei HAO Yu-jiao XU Yi WANG Yu-qiong ZHOU Ying-chao E Wen-juan ZHANG Tong-qing GAO Xing-bang TAN Xiao-chuan 《Journal of Central South University》 SCIE EI CAS CSCD 2022年第1期331-345,共15页
Because of the limitations of electric vehicle(EV)battery technology and relevant supporting facilities,there is a great risk of breakdown of EVs during driving.The resulting driver“range anxiety”greatly affects the... Because of the limitations of electric vehicle(EV)battery technology and relevant supporting facilities,there is a great risk of breakdown of EVs during driving.The resulting driver“range anxiety”greatly affects the travel quality of EVs.These limitations should be overcome to promote the use of EVs.In this study,a method for travel path planning considering EV power supply was developed.First,based on real-time road conditions,a dynamic energy model of EVs was established considering the driving energy and accessory energy.Second,a multi-objective travel path planning model of EVs was constructed considering the power supply,taking the distance,time,energy,and charging cost as the optimization objectives.Finally,taking the actual traffic network of 15 km×15 km area in a city as the research object,the model was simulated and verified in MATLAB based on Dijkstra shortest path algorithm.The simulation results show that compared with the traditional route planning method,the total distance in the proposed optimal route planning method increased by 1.18%,but the energy consumption,charging cost,and driving time decreased by 11.62%,41.26%and 11.00%,respectively,thus effectively reducing the travel cost of EVs and improving the driving quality of EVs. 展开更多
关键词 electric vehicle vehicle special power charging path multi-objective optimization Dijkstra algorithm
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China's Migrant Workers' Social Security
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作者 Zhang Sifeng Zhang Wenxue +1 位作者 Wang Lijian Zhang Li 《Chinese Journal of Population,Resources and Environment》 2010年第2期3-12,共10页
Based on the definition of migrant workers and migrant workers'social security,systems,policies and regulations and status quo of specific safeguard project of social security have been analyzed.Authors draw follo... Based on the definition of migrant workers and migrant workers'social security,systems,policies and regulations and status quo of specific safeguard project of social security have been analyzed.Authors draw following conclusions:China's social security systems of migrant workers show diversification and differentiation trend;national-level policies take on diversification and local-level regulations take on differentiation;social welfare and social assistance have deficiency;coverage rate of social insurance items is extremely low. 展开更多
关键词 migrant workers social security social insurance
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Coordinated Path Planning for UAVs Based on Sheep Optimization 被引量:4
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作者 YANG Liuqing WANG Pengfei ZHANG Yong 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2020年第5期816-830,共15页
Using the traditional swarm intelligence algorithm to solve the cooperative path planning problem for multi-UAVs is easy to incur the problems of local optimization and a slow convergence rate.A cooperative path plann... Using the traditional swarm intelligence algorithm to solve the cooperative path planning problem for multi-UAVs is easy to incur the problems of local optimization and a slow convergence rate.A cooperative path planning method for multi-UAVs based on the improved sheep optimization is proposed to tackle these.Firstly,based on the three-dimensional planning space,a multi-UAV cooperative cost function model is established according to the path planning requirements,and an initial track set is constructed by combining multiple-population ideas.Then an improved sheep optimization is proposed and used to solve the path planning problem and obtain multiple cooperative paths.The simulation results show that the sheep optimization can meet the requirements of path planning and realize the cooperative path planning of multi-UAVs.Compared with grey wolf optimizer(GWO),improved gray wolf optimizer(IGWO),chaotic gray wolf optimizer(CGWO),differential evolution(DE)algorithm,and particle swam optimization(PSO),the convergence speed and search accuracy of the improved sheep optimization are significantly improved. 展开更多
关键词 multi-UAV cooperation path planning swarm intelligence algorithm MULTI-POPULATION improved sheep optimization(ISO)
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Three-dimensional multi-constraint route planning of unmanned aerial vehicle low-altitude penetration based on coevolutionary multi-agent genetic algorithm 被引量:8
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作者 彭志红 吴金平 陈杰 《Journal of Central South University》 SCIE EI CAS 2011年第5期1502-1508,共7页
To address the issue of premature convergence and slow convergence rate in three-dimensional (3D) route planning of unmanned aerial vehicle (UAV) low-altitude penetration,a novel route planning method was proposed.Fir... To address the issue of premature convergence and slow convergence rate in three-dimensional (3D) route planning of unmanned aerial vehicle (UAV) low-altitude penetration,a novel route planning method was proposed.First and foremost,a coevolutionary multi-agent genetic algorithm (CE-MAGA) was formed by introducing coevolutionary mechanism to multi-agent genetic algorithm (MAGA),an efficient global optimization algorithm.A dynamic route representation form was also adopted to improve the flight route accuracy.Moreover,an efficient constraint handling method was used to simplify the treatment of multi-constraint and reduce the time-cost of planning computation.Simulation and corresponding analysis show that the planning results of CE-MAGA have better performance on terrain following,terrain avoidance,threat avoidance (TF/TA2) and lower route costs than other existing algorithms.In addition,feasible flight routes can be acquired within 2 s,and the convergence rate of the whole evolutionary process is very fast. 展开更多
关键词 unmanned aerial vehicle (UAV) low-altitude penetration three-dimensional (3D) route planning coevolutionary multiagent genetic algorithm (CE-MAGA)
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Solving Hitchcock’s transportation problem by a genetic algorithm
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作者 陈海峰 CHO Joong. Rae LEE Jeong. Tae 《Journal of Chongqing University》 CAS 2004年第2期54-57,共4页
Genetic algorithms (GAs) employ the evolutionary process of Darwin’s nature selection theory to find the solutions of optimization problems. In this paper, an implementation of genetic algorithm is put forward to sol... Genetic algorithms (GAs) employ the evolutionary process of Darwin’s nature selection theory to find the solutions of optimization problems. In this paper, an implementation of genetic algorithm is put forward to solve a classical transportation problem, namely the Hitchcock’s Transportation Problem (HTP), and the GA is improved to search for all optimal solutions and identify them automatically. The algorithm is coded with C++ and validated by numerical examples. The computational results show that the algorithm is efficient for solving the Hitchcock’s transportation problem. 展开更多
关键词 Hitchcock’s transportation problem genetic algorithm multiple optimal solutions
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Scheduling Multiple Orders per Job with Multiple Constraints on Identical Parallel Machines 被引量:1
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作者 王腾 周炳海 《Journal of Donghua University(English Edition)》 EI CAS 2013年第6期466-471,共6页
With a comprehensive consideration of multiple product types, past-sequence-dependent ( p-s-d ) setup times, and deterioration effects constraints in processes of wafer fabrication systems, a novel scheduling model ... With a comprehensive consideration of multiple product types, past-sequence-dependent ( p-s-d ) setup times, and deterioration effects constraints in processes of wafer fabrication systems, a novel scheduling model of multiple orders per job(MOJ) on identical parallel machines was developed and an immune genetic algorithm(IGA) was applied to solving the scheduling problem. A scheduling problem domain was described. A non-linear mathematical programming model was also set up with an objective function of minimizing total weighted earliness-tardlness penalties of the system. On the basis of the mathematical model, IGA was put forward. Based on the genetic algorithm (GA), the proposed algorithm (IGA) can generate feasible solutions and ensure the diversity of antibodies. In the process of immunization programming, to guarantee the algorithm's convergence performance, the modified rule of apparent tardiness cost with setups (ATCS) was presented. Finally, simulation experiments were designed, and the results indicated that the algorithm had good adaptability when the values of the constraints' characteristic parameters were changed and it verified the validity of the algorithm. 展开更多
关键词 multiple product types past-sequence-dependent p-s-d setup times deterioration effects identical parallel machines scheduline immune Penetic algorithm IGA
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Skin Sensitive Difference of Human Body Sections under Clothing - Multiple Analysis of Skin Surface Temperature Changes 被引量:1
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作者 李俊 吴海燕 张渭源 《Journal of Donghua University(English Edition)》 EI CAS 2003年第4期30-35,共6页
A new researching method on clothing comfort perception is developed.By it the skin surface temperature changes and subjective psychological perception of human body sections stimulated by the same cold stimulation ar... A new researching method on clothing comfort perception is developed.By it the skin surface temperature changes and subjective psychological perception of human body sections stimulated by the same cold stimulation are studied.With the multiple comparison analysis method the changing laws of skin temperature of main human body sections is obtained. 展开更多
关键词 clothing comfort skin surface temperature cold sensation multiple comparison analysis
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Confidence Level Based on Ridge Estimator in Process Measurement and Its Application
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作者 岳元龙 左信 罗雄麟 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2013年第10期1144-1154,共11页
Ordinary least squares(OLS) algorithm is widely applied in process measurement, because the sensor model used to estimate unknown parameters can be approximated through multivariate linear model. However, with few or ... Ordinary least squares(OLS) algorithm is widely applied in process measurement, because the sensor model used to estimate unknown parameters can be approximated through multivariate linear model. However, with few or noisy data or multi-collinearity, unbiased OLS leads to large variance. Biased estimators, especially ridge estimator, have been introduced to improve OLS by trading bias for variance. Ridge estimator is feasible as an estimator with smaller variance. At the same confidence level, with additive noise as the normal random variable, the less variance one estimator has, the shorter the two-sided symmetric confidence interval is. However, this finding is limited to the unbiased estimator and few studies analyze and compare the confidence levels between ridge estimator and OLS. This paper derives the matrix of ridge parameters under necessary and sufficient conditions based on which ridge estimator is superior to OLS in terms of mean squares error matrix, rather than mean squares error.Then the confidence levels between ridge estimator and OLS are compared under the condition of OLS fixed symmetric confidence interval, rather than the criteria for evaluating the validity of different unbiased estimators. We conclude that the confidence level of ridge estimator can not be directly compared with that of OLS based on the criteria available for unbiased estimators, which is verified by a simulation and a laboratory scale experiment on a single parameter measurement. 展开更多
关键词 process measurement confidence level ridge estimator variance BIAS
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NSGA Ⅱ based multi-objective homing trajectory planning of parafoil system 被引量:1
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作者 陶金 孙青林 +1 位作者 陈增强 贺应平 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第12期3248-3255,共8页
Homing trajectory planning is a core task of autonomous homing of parafoil system.This work analyzes and establishes a simplified kinematic mathematical model,and regards the homing trajectory planning problem as a ki... Homing trajectory planning is a core task of autonomous homing of parafoil system.This work analyzes and establishes a simplified kinematic mathematical model,and regards the homing trajectory planning problem as a kind of multi-objective optimization problem.Being different from traditional ways of transforming the multi-objective optimization into a single objective optimization by weighting factors,this work applies an improved non-dominated sorting genetic algorithm Ⅱ(NSGA Ⅱ) to solve it directly by means of optimizing multi-objective functions simultaneously.In the improved NSGA Ⅱ,the chaos initialization and a crowding distance based population trimming method were introduced to overcome the prematurity of population,the penalty function was used in handling constraints,and the optimal solution was selected according to the method of fuzzy set theory.Simulation results of three different schemes designed according to various practical engineering requirements show that the improved NSGA Ⅱ can effectively obtain the Pareto optimal solution set under different weighting with outstanding convergence and stability,and provide a new train of thoughts to design homing trajectory of parafoil system. 展开更多
关键词 parafoil system homing trajectory planning multi-objective optimization non-dominated sorting genetic algorithm(NSGA) non-uniform b-spline
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Reformative Financial Risk Management Approach: A Multistage Decision Support System with the Assistance of Fuzzy Goal Programming and Expertons Method
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作者 S.Ceren Oner 《Journal of Mathematics and System Science》 2014年第9期620-636,共17页
The potential demand on financial risk management has being increased considerably by the reason of Basel 11 regulations and instabilities in economy. In recent years, financial institutions and companies have been st... The potential demand on financial risk management has being increased considerably by the reason of Basel 11 regulations and instabilities in economy. In recent years, financial institutions and companies have been struggled for building up intensive financial risk management tools due to Basel II guidance on establishing financial self-assessment systems. In this respect, decision support system has a significant role on effectuating intensive financial risk management roadmap. In this study, a reformative financial risk management system is presented with the combination of determining financial risks with their importance, calculating risk scores and making suggestions based on detected risk scores by applying corrective actions. First, financial risk factors and indicators of these risk variables are selected and weights of these variables are specified by using fuzzy goal programming. After that, total risk scores are calculated and amendatory financial activities are appeared by means of expertons method which also provides possibilities of the alternative decisions. To illustrate the performance of integrated and multistage decision support system, a survey is applied on the end users. 展开更多
关键词 Financial risk management decision support systems fuzzy goal programming expertons method
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Multi-dimensional evaluation method in music creation and performance of comedy
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作者 Fuduan PENG 《International Journal of Technology Management》 2015年第5期29-31,共3页
Multidimensional Scale Evaluation Rules as a performer in the field of learning assessment is feasible, but for each dimension settings, level settings and value setting need to be developed according to the actual ra... Multidimensional Scale Evaluation Rules as a performer in the field of learning assessment is feasible, but for each dimension settings, level settings and value setting need to be developed according to the actual raters, object evaluation, the focus of the evaluation. Scores of overall dimensions use variance analysis, and the results show a significant difference. In sub-dimension score comparison, the high group and low group both got higher scores in the degree of difficulty performing works and read music accuracy. The high group and low group are different on dimensions of the lowest score. Total scores in the scale of multi-dimensional evaluation of rules are positively correlated on the scores on the improvising horizontal dimension, but the correlation is not very high level, that is not all students who is better in playing levels, and they can get higher scores on the improvising horizontal dimension. Using multi-dimensional scale scores and teacher direct evaluation rules score are significantly different for student achievement. 展开更多
关键词 multi-dimensional evaluation method comedy creation SHOW
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A modeling method for virtual scene based on multi-view image sequence
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作者 王佳生 唐好选 杨铁冬 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2009年第2期217-222,共6页
Through the analysis and comparison of shortcomings and advantages of existing technologies on object modeling in 3D applications,we propose a new modeling method for virtual scene based on multi-view image sequence t... Through the analysis and comparison of shortcomings and advantages of existing technologies on object modeling in 3D applications,we propose a new modeling method for virtual scene based on multi-view image sequence to model irregular objects efficiently in 3D application.In 3D scene,this method can get better visual effect by tracking the viewer's real-time perspective position and projecting the photos from different perspectives dynamically.The philosophy of design,the steps of development and some other relevant topics are discussed in details,and the validity of the algorithm is analyzed.The results demonstrate that this method represents more superiority on simulating irregular objects by applying it to the modeling of virtual museum. 展开更多
关键词 irregular object modeling RGB color space image segmentation virtual scene
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Coordinated dynamic mission planning scheme for intelligent multi-agent systems
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作者 彭军 文孟飞 +2 位作者 谢国祺 张晓勇 Kuo-chi LIN 《Journal of Central South University》 SCIE EI CAS 2012年第11期3170-3179,共10页
Mission planning was thoroughly studied in the areas of multiple intelligent agent systems,such as multiple unmanned air vehicles,and multiple processor systems.However,it still faces challenges due to the system comp... Mission planning was thoroughly studied in the areas of multiple intelligent agent systems,such as multiple unmanned air vehicles,and multiple processor systems.However,it still faces challenges due to the system complexity,the execution order constraints,and the dynamic environment uncertainty.To address it,a coordinated dynamic mission planning scheme is proposed utilizing the method of the weighted AND/OR tree and the AOE-Network.In the scheme,the mission is decomposed into a time-constraint weighted AND/OR tree,which is converted into an AOE-Network for mission planning.Then,a dynamic planning algorithm is designed which uses task subcontracting and dynamic re-decomposition to coordinate conflicts.The scheme can reduce the task complexity and its execution time by implementing real-time dynamic re-planning.The simulation proves the effectiveness of this approach. 展开更多
关键词 weighted AND/OR tree multiple intelligent agent coordinated dynamic mission planning AOE-NETWORK
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Low Leakage Power Sequential Circuits Using Multi-Vth at Nano-Scale Transistor
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作者 Abdoul Rjoub Hassan Almanasrah 《Journal of Energy and Power Engineering》 2013年第1期193-205,共13页
Leakage power is the dominant source of power dissipation for Sub-100 nm VLSI (very large scale integration) circuits. Various techniques were proposed to reduce the leakage power at nano-scale; one of these techniq... Leakage power is the dominant source of power dissipation for Sub-100 nm VLSI (very large scale integration) circuits. Various techniques were proposed to reduce the leakage power at nano-scale; one of these techniques is MTV (multi-threshold voltage) In this paper, the exact and optimal value of threshold voltage (Vth) for each transistor in any sequential circuit in the design is found, so that the value of the total leakage current in the design is at the minimum. This could be achieved by applying AI (artificial intelligence) search algorithm. The proposed algorithm is called LOAIS (leakage optimization using AI search). LOAIS exploits the total slack time of each transistor's location and their contributions in the leakage current. It is introduced by AI heuristic search algorithms under 22 nm BSIM4 predictive technology model. The proposed approach saves around 80% of the sub-threshold leakage current without degrading the performance of the circuit. 展开更多
关键词 Component artificial intelligence leakage current low power mtflti-threshold technique NANOTECHNOLOGY SPICEparameters.
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Multi-objective optimization of space station short-term mission planning 被引量:6
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作者 BU HuiJiao ZHANG Jin +1 位作者 LUO YaZhong ZHOU JianPing 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2015年第12期2169-2185,共17页
This paper studies the multi-objective optimization of space station short-term mission planning(STMP), which aims to obtain a mission-execution plan satisfying multiple planning demands. The planning needs to allocat... This paper studies the multi-objective optimization of space station short-term mission planning(STMP), which aims to obtain a mission-execution plan satisfying multiple planning demands. The planning needs to allocate the execution time effectively, schedule the on-board astronauts properly, and arrange the devices reasonably. The STMP concept models for problem definitions and descriptions are presented, and then an STMP multi-objective planning model is developed. To optimize the STMP problem, a Non-dominated Sorting Genetic Algorithm II(NSGA-II) is adopted and then improved by incorporating an iterative conflict-repair strategy based on domain knowledge. The proposed approach is demonstrated by using a test case with thirty-five missions, eighteen devices and three astronauts. The results show that the established STMP model is effective, and the improved NSGA-II can successfully obtain the multi-objective optimal plans satisfying all constraints considered. Moreover, through contrast tests on solving the STMP problem, the NSGA-II shows a very competitive performance with respect to the Strength Pareto Evolutionary Algorithm II(SPEA-II) and the Multi-objective Particle Swarm Optimization(MOPSO). 展开更多
关键词 space station short-term mission planning multi-objective optimization NSGA-II
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Water Resource Allocation under Consideration of the National NIY Plan in Harbin, China
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作者 张焱 刘苏峡 陈军锋 《Journal of Resources and Ecology》 CSCD 2012年第2期161-168,共8页
Water resource allocation (WRA) is a useful but complicated topic in water resource management. With the targets set out in the Plan of Newly Increasing Yield (NIY) of 10×1011 Jin (1 kg=2 Jin) from 2009 to ... Water resource allocation (WRA) is a useful but complicated topic in water resource management. With the targets set out in the Plan of Newly Increasing Yield (NIY) of 10×1011 Jin (1 kg=2 Jin) from 2009 to 2020, the immediate question for the Songhua River Region (SHRR) is whether water is sufficient to support the required yield increase. Very few studies have considered to what degree this plan influences the solution of WRA and how to adapt. This paper used a multi-objective programming model for WRA across the Harbin region located in the SHRR in 2020 and 2030 (p=75%). The Harbin region can be classified into four types of sub-regions according to WRA: Type I is Harbin city zone. With rapid urbanization, Harbin city zone has the highest risk of agricultural water shortage. Considering the severe situation, there is little space for Harbin city zone to reach the NIY goal. Type II is sub-regions including Wuchang, Shangzhi and Binxian. There are some agricultural water shortage risks in this type region. Because the water shortage is relatively small, it is possible to increase agricultural production through strengthening agricultural water-saving countermeasures and constructing water conservation facilities. Type III is sub-regions including Acheng, Hulan, Mulan and Fangzheng. In this type region, there may be a water shortage if the rate of urbanization accelerates. According to local conditions, it is needed to enhance water-saving countermeasures to increase agricultural production to a certain degree. Type IV is sub-regions including Shuangcheng, Bayan, Yilan, Yanshou and Tonghe. There are good water conditions for the extensive development of agriculture. Nevertheless, in order to ensure an increase in agricultural production, it is necessary to enhance the way in which water is utilized and consider soil resources. These results will help decision makers make a scientific NIY plan for the Harbin region for sustainable utilization of regional water resources and an increase in agricultural production. 展开更多
关键词 the Harbin region supply and demand prediction multi-objective programming model genetic algorithm water resource allocation (WRA)
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