非线性2m阶微分方程边值问题解的存在性和多重性

利用强单调映象原理和临界点理论讨论2m阶微分方程边值问题{（-1）^m·u^（2m）（t）=f（t,u（t））,t∈[0.1] u^（2i）（0）=u^（2i）（1）=0 （i=0,1…,m-1）,其中f：[0,1]xR^1→R^1连续,得到其解的存在性和多重性．     

粗糙核向量值奇异积分算子的几个加权赋范不等式

向量值奇异积分算子的核决定着算子的性质和加权不等式．标准核向量值奇异积分算子的研究内容已经日趋完善,弱Dini型核以及粗糙核向量值奇异积分算子也有所研究,但研究内容不够完善,现继续研究粗糙核向量值奇异积分算子,得到了这类算子的几个加权赋范不等式,丰富了向量值奇异积分算子的理论．     

具有凸多面体不确定参数Delta算子时滞系统的可靠保性能控制

研究Delta算子描述的线性不确定时滞系统的可靠保性能控制问题。考虑系统含有具有凸多面体不确定性参数和连续模型执行器故障,根据Lyapunov稳定性理论,给出对于所有允许的不确定性和执行器故障．均使闭环系统渐近稳定且给定性能指标具有一定上界的状态反馈控制器的存在条件,由此提出相应控制器的设计方法。通过数值算例验证了设计方法的可行性。     

拓扑空间中的KKM型定理的推广及其应用

在FC-空间的非紧子集上引入了R-SKKM映射,建立了关于紧闭值和转移紧闭值的R-SKKM映射的R-SKKM定理,得到了FC-空间中的极大极小不等式定理和鞍点定理.     

企业核心竞争力的评价方法研究--基于IOWA算子的模糊视角

首先构建影响企业核心竞争力的评价指标体系并确定指标因素权重系数,其次,运用IOWA算子对指标信息进行集结,最后运用模糊综合评价方法将多层指标体系进行合成,并以此作为企业核心竞争力的总评价值。     

非双倍测度上的θ-型Caldero′n-Zygmund算子

设μ是础上的非双倍Radon测度,对所有的x∈R^d,r〉0和某些固定的0〈n≤d,满足μ（B（x,r））≤Cr^n．在这个假设下,本文证明了满足L^2（μ）有界的θ-型Calder o’n—Zygmund算子是从L^∞（μ）到RBMO（μ）上的有界算子．     

基于C-OWA算子的业主驱动下BIM应用效益灰色聚类评价

随着BIM的推广普及和深化应用,构建一套科学可行的BIM效益评价体系对推动BIM落地和效益发挥具有非常重要的现实意义。本文在文献综述的基础上,从BIM应用现状和业主方项目管理目标的视角出发,从七个维度建立了业主方驱动下的BIM效益评价指标,运用C-OWA算子赋权法和灰色系统理论进行评价,提出了业主方BIM应用效益评价指标体系,为BIM应用的前期决策和后期评价提供参考,促进BIM效益的真正发挥。     

Joint work is not shifted proximally after a long run in rearfoot strike runners

ABSTRACT

Distal-to-proximal redistribution of joint work occurs following exhaustive running in recreational but not competitive runners but the influence of a submaximal run on joint work is unknown. The purpose of this study was to assess if a long submaximal run produces a distal-to-proximal redistribution of positive joint work in well-trained runners. Thirteen rearfoot striking male runners (weekly distance: 72.6 ± 21.2 km) completed five running trials while three-dimensional kinematic and ground reaction force data were collected before and after a long submaximal treadmill run (19 ± 6 km). Joint kinetics were calculated from these data and percent contributions of joint work relative to total lower limb joint work were computed. Moderate reductions in absolute negative ankle work (p = 0.045, Cohen’s d = 0.31), peak plantarflexor torque (p = 0.004, d = 0.34) and, peak negative ankle power (p = 0.005, d = 0.32) were observed following the long run. Positive ankle, knee and hip joint work were unchanged (p < 0.05) following the long run. These findings suggest no proximal shift in positive joint work in well-trained runners after a prolonged run. Runner population, running pace, distance, and relative intensity should be considered when examining changes in joint work following prolonged running.     

一类宽平稳量子随机过程及实例分析

定义了"宽平稳量子随机过程"的概念,获得了其谱分解定理.辅以统计物理学中的实例为基础.     

算子迹算术-几何平均不等式

利用泛函分析方法将半正定矩阵迹不等式|tr(A1A2…Am)|1m≤1m(trA1 trA2 … trAm)推广到Hilbert空间,并得到相应的正迹类算子不等式.