查询词典 mapping

The definitions of generalized directional derivative and generalized gradient of Lipschitz functions defined on Riemannian manifold are presented. Some properties of the directional derivative and gradient are proved by using tangent and cotangent mapping. The minimization necessary condition of nonsmooth Lipschitz functions is given. Moreover, Fritz John necessary optimality condition in mathematical programming is provided on Riemannian manifold.

在黎曼流形上给出了Lipschitz函数的广义方向导数和广义梯度的概念，利用黎曼流形局部上与欧氏空间开集微分同胚的性质以及切映射和余切映射导出了广义梯度的性质和运算法则，证明了定义在黎曼流形上的函数取得极小值的必要条件是广义梯度包含零元素，并利用这些性质给出了黎曼流形上数学规划问题的Fritz John型最优性条件。

By means of the curcuit mapping transformation developed in electrical network analysis, it is proved that the total reaction forces and moments are not independent but ran be linearly represented by two sets of independent ones, namely, cotree forces and cotree moments, respectively.

本文根据研究内容不同分成两篇，第一篇提出了一种基于网络分析方法的平面连杆机构运动学和静力学理论研究体系，侧重探讨和揭示了机构运动和力分析数学模型的内在联系，研究了机构组成的计算机辅助识别原理、策略、方法及软件设计技术。

Next, metaphoric mapping, which is often involved in the meaning construction of counterfactual spaces, is discussed.

在虚拟的复合空间里，1938年的丘吉尔就成了首相，第二次世界大战也没有发生。

The nonlinear mapping ability of the artificial neural network was utilized to modify the counterflow condenser model and improve its predicting results. It shows that this method is an effective way to improve the generalization and precision of the general condenser model.

利用其非线性映射能力进行模型修正，显著提高了冷凝器的仿真精度，从而为同时提高冷凝器仿真的通用性和准确性提供了一种有效的工程应用方法。

A SSR marker based linkage map covering chromosome 10 and the short arms of chromosomes 1 and 11 of rice was constructed and applied for mapping fertility-restoring genes in Zhenshan 97A/(Zhenshan 97B/Milyang 46)F_ 6 population consisting of 704 lines.

应用由704个株系组成的珍汕97A/(珍汕97B/密阳46)F6测交群体，针对水稻第10染色体和第1、11染色体短臂构建了微卫星标记连锁图谱，检测到控制野败型细胞质雄性不育育性恢复的4个QTL，其中位于第10染色体长臂中下部的Rf4具有主效效应，位于第1染色体短臂的Rf3具有较大效应，位于第10染色体长臂近着丝粒处的qRf10和第11染色体短臂近着丝粒处的qRf11表现出微效作用。

A kind of visual prediction and analysis framework of the execution time of real-time software based on program flowchart is proposed in the paper. The key issues of implementing the framework are discussed in detail, including creating the mapping between intermediate code segment and statement line of source code, retrieving the time of any given program segment from the perspective of CPU cycles of goal machine instruct, calculating CPU cycles of statement lines of source code, point-to-point WCETC (worst case execution time calculated) analysis algorithm based on program flowchart, and transforming CPU cycle into physical time.

提出了一种基于控制流程图的程序执行时间的可视化分析框架，研究了中间代码段与源程序中语句的对应关系的自动分析、源程序语句行的CPU周期数的提取和计算方法、基于控制流程图的点到点最大时间分析算法和CPU周期的绝对时间估计方法。

The complete reentry circuit of common-type atrial flutter and relationship of crista teminalis and AFL are not clear.The two studies were perfomed by using the electroanatomical mapping system.

普通型心房扑动的完整折返环路以及界嵴和AFL的关系仍不太清楚，笔者应用电解剖标测系统执行两项研究。

Results: In all 13 patients, non-contact mapping showed AFLs confined to the RA with the cycle length (230 ±20 ms). 6 patients presented single-loop re-entry circulating around the central obstacle in the anterolateral wall through the channel between the CO and the crista terminalis .Seven patients presented "8" re-entry, and the gap of upper and lower loop located in CT in 4 cases, another 3 cases with upper loop and free-wall single-loop re-entry. RF of CT gap and/or the free-wall channel was effective in eliminating these AFLs in 13 patients.

结果 经 NMS标测证实13例患者折返均在右房内，激动在右房内的折返平均时间为230±20ms.6例房扑患者为单折返环，围绕右房中心障碍区折返，激动在心房的前壁穿过中心障碍区与界瘠之间的狭窄通道。7例患者证实为2个折返环，其中4例表现为上下折返环形成"8"字形折返，共同的传导通道在界瘠；另外3例表现为折返环1个在心房上部，1个在前游离壁。13例消融界瘠或前游离壁后房扑终止。

Through the use of critical path method and the process of mapping network model,analyse the progress of activities,optimize the process model for the goal of the cost and time.

过程模型的优劣直接影响到企业并行工程的实施。1·1模型分析与优化的意义与目标

Through the use of critical path method and the process of mapping network model, analyse the progress of activities, optimize the process model for the goal of the cost and time.

通过运用关键路径法和绘制网络图对过程模型中活动进度安排进行分析，并且以时间-成本为目标对过程模型进行优化。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。