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New classes of functions namely (V, ρ)h,φ-type I, quasi (V, ρ)h,φ-type I and pseudo (V, ρ)h,φ-type I functions are defined for multiobjective programming problem by using BenTal’s generalized algebraic operation. The examples of (V, ρ)h,φ-type I functions are given. The sufficient optimality conditions are obtained for multi-objective programming problem involving above new generalized convexity. 相似文献
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重离子引起的单粒子效应是威胁航天器安全的重要因素之一 ,利用加速器进行地面模拟是研究单粒子效应的重要手段 .概述了单粒子效应研究的历史和现状,讨论了单粒子效应研究的基本方法 ,最后简要介绍了在兰州重离子加速器上已开展的单粒子效应研究工作. Single event effects (SEE ′s) have been observed in semiconductor device in space since 1975. It has been verified from many spaceflight tests that single event effect induced by cosmic ray is one of the important sources of anomalies and malfunctions of spacecraft. Initially, a brief outline of space radiation environment is given. The history and recent trends were described, and basic methods and necessary facilities for SEE testing were also discussed. Finally, the research ... 相似文献
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参数非线性规划中最优值函数的预不变凸凹性 总被引:3,自引:0,他引:3
本文给出了预拟不变单调函数的定义,提出了不变凸点到集映射、不变凹点到集映射的新概念,得到了不变凸点到集映射的一个充分必要条件,研究了参数非线性规划中最优值函数的预不变凸凹性。 相似文献
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ON SUFFICIENCY AND DUALITY OF SOLUTIONS FOR QUASI Bs-INVEX SEMI-INFINITE PROGRAMMING 总被引:1,自引:0,他引:1
张庆祥 《高等学校计算数学学报(英文版)》2001,10(1)
1 IntroductionRecently,various kinds of generalized convex functions were introduced.Bector andSingh[1 ] introduced a class of functions which called B-vex function.Bector,Suneja,andLalitha[2 ] introduced quasi B-vex function,pseudo B-vex function,B-invex function,quasi B-invex function,and pseudo B-invex function.We[3] extended invex function[4] ,gave thedefinitions of the symmetricη-function,symmetricη-pseudoconvex function,symmetricη-quasiconvex function for symmetric differentiable… 相似文献
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用12C离子模拟质子引起的单粒子效应 总被引:1,自引:1,他引:0
在理论分析的基础上 ,提出了一种利用兰州重离子加速器提供的高能12C离子模拟质子引起单粒子效应的途径 .在保证核反应机制是引起单粒子效应主要机制的前提下,用高能12C离子可以模拟质子在功率金属 -氧化物 -半导体场效应晶体管中引起的单粒子烧毁以及单粒子栅极击穿 ,获得质子单粒子效应的饱和截面 ,定性研究质子单粒子效应的角度效应 ,还可以作为高能质子单粒子效应实验前的预备实验 .该方法拓展了兰州重离子加速器加速的轻的重离子在单粒子效应实验研究方面的应用 ,对现阶段国内开展质子单粒子效应实验研究具有重要意义. The mechanisms for proton and heavy ion induced single event effect (SEE) are discussed and a method to simulate proton induced SSEE (PSEE) with high energy 12 C is proposed in this paper. The experiments which can be done by using this method include single event burnout (SEB) and single event gate rupture in power MOSFET, single event upset (SEU) and single event transient (SET) in less sensitive device and angle effect. The experimets with high energy ... 相似文献
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一类(h,φ)-意义下的半无限规划的最优性充分条件 总被引:16,自引:0,他引:16
我们知道,至今讨论涉及(h,φ)-凸函数和广义(h,φ)-凸函数的规划的文章较少,特别是这方面的半无限规划的文章更少.本文正是利用 Ben-Tal 广义代数运算,给出了(h,φ)-凸函数的一个定理,扩充了(h,φ)一凸函数的概念,得到了一类半无限广义凸规划的最优性充分条件. 相似文献