时间子

Using the method of dividing variables , the solution of elastic dynamics can be changed into the eigen value problem of Hamilton's space differential operator matrix , and the total solution of dual variables (modal strain and modal strain rate ) can be obtained by expanding the eigen solutions .

尽管方程的个数增加了1倍(未知量个数增加了1倍)，但方程对时间微分的次数下降到1阶。通过分离变量后，可以将其转变为Hamilton空间算子矩阵的本征值问题，从而使复杂力学问题的解析解成为可能。

In this implementation, the evolutionary algorithm is hybridized with the simulated annealing algorithm and the hill climbing heuristic. The main aspects are as follows. The Metropolis criterion of the simulated annealing algorithm is introduced to select the offspring in order to make the algorithm more effective to escape the local optimum. In terms of the hill climbing heuristic, the local normal perturbing mutation operator based probability selecting is developed to enhance the local searching of the algorithm.

其主要工作是将进化算法与模拟退火算法及爬山方法相组合，引入模拟退火算法中Metropolis接受准则选择子代，提高算法跳出局部最优解的能力：借鉴爬山方法思想，构造了基于概率选择的局部正态摄动变异算子，以强化进化算法局部细搜索能力；同时进化算法以多种群方式实现，在降低计算时间的同时提高算法收敛到全局最优解的概率。

By the means of projection operator method, we study the effects of the cross-correlation time 'tau' and the cross-correlation intensity 'lambda' between noises on the normalized intensity correlation function C.

利用投影算子方法，我们研究两噪声之间的交叉关联时间'tau'和交叉关联强度'lambda'对强度关联函数C的影响。

In order to describe the random-like feature of chaotic signal, the statistical analysis method for discrete time chaos system is studied. A domain iterative algorithm for numerical estimation of the invariant probability distribution is presented, which is the foundation for the statistical analysis and processing of chaotic signal.

针对混沌系统的随机性特征，本文研究了离散时间混沌系统的统计分析方法，并给出了一种基于Frobenius-Perron算子的区间迭代算法用于混沌映射不变分布的数值求解，该方法在样本数较少时，仍可以获得不变分布的良好估计，为混沌信号进一步的统计分析和处理奠定了基础。

In the first year, a dynamic energy interpolating circuit will be developed to substitute for the static transfer switch of off-line UPS's. This circuit is able to provide the output power for off-line UPS's about half-cycle time while the utility is blackout but the inverter still no yet starts to take over the UPS output.

第一年之子计画刻正进行研制一种取代离线式不断电系统中静态转换开关之动态能量补间电路，该电路系为可在市电中断至变流器启动前，提供离线式不断电系统约半周期之输出电源之一种极低容量谐振型电路，俾使离线式不断电电源系统之运作得具零转换时间之特性。

An exhibition of Yoko Ono named Between the Sky and My Head was presented.

这段时间的一个大型展览是小野洋子的"在天空与思想之间"。

An analysis on the time-dependent formation of one-dimensional gray photovoltaic solitons under open-circuit conditions is presented.

分析了开环系统中一维灰光伏孤子的时间特性。

Based on the generalized description of LS code, we further gave the standard and method to hunt the optimized GLS code.

我们进一步分析了LAS-CDMA系统在组网上的主要问题，提出了给每个小区不同时间的无线子帧分配不同的LA码来实现动态组网的方法。

It uses the crossover of topological sort list to guarantee that each offspring is a feasible solution and the search space is a global one. In order to improve the convergence of GA, it uses greedy strategy to improve the fitness of one chromosome in the population in crossover operator, based on Lamarckian theory in the evolution.

HGA使用拓扑排序表的交叉来保证下代的合法性和搜索空间的全局性，为了提高HGA的收敛速度，根据拉马克进化理论，在交叉算子中使用贪婪策略来提高个体的适应值，模拟结果显示HGA的调度结果和算法的时间复杂性都是令人满意的。

So the egg should be fertilized in the upper part of the oviduct to allow sufficient time for its development.

在输卵管内的合子要再分裂成一群细胞，然后才能黏附在子宫内膜中，因此卵子要在输卵管的上部受精，以备有足够时间给它发展。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。