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Constant-temperature molecular dynamics simulations combined with the quenching technique are used to study the melting behaviors of Nin and Pdn(n=13,55,147) clusters.The Gupta form interatomic potential is adopted in the simulation.

本文运用恒温分子动力学方法及淬火技术，模型采用Gupta作用势，研究了包含相同原子数目的Nin和Pdn (n=13，55，147)团簇的熔化特性。

Moreover, based on the boundary conditions recommended by the Paleoclimate Modelling Intercomparison Project, it is further indicated that vegetation feedback in East Asia, possible ice sheet over the Tibetan Plateau, and sea surface temperature reconstruction in the western Pacific different from the PMIP data source can induce additional climate effects, which partly reconcile model-paleodata discrepancies as displayed by the standard PMIP simulations.

在国际古气候模拟比较计划标准试验的基础上，进一步指出东亚植被的反馈作用、青藏高原可能冰川的反馈作用、以及西太平洋表面温度的作用能够引起额外的气候效应，可在一定程度上改进PMIP标准试验的模拟效果。

The sidelobe has many ripples in condition of small training sample size and the diagonal loading technology is applied to this method, which improve the convergence speed of sidelobe. We also study the pattern control of area array. The effectiveness of this new method is illustrated by the designed simulations.5. Adaptive sidelobe cancellation is a important part of phase array radar. To realize low sidelobe and suppressing the interferer the antenna technique and signal process are combined.

用对角加载方法解决了小快拍数下收敛速度慢的问题，并仿真给出了加载量的选取范围，对面阵的自适应方向图控制文中也进行了详细讨论，阵列幅相误差和互耦误差对自适应方向图控制影响，文中也给出了仿真和分析。5、自适应旁瓣相消是相控阵雷达技术的一个重要组成部分，它将天线技术与信号处理技术结合在一起，使相控阵天线实现超低副瓣，达到抗有源干扰的目的。

Based on parameter free interionic potentials of the Gordon Kim modified electron gas formalism extended to molecular ions, the structure phase transitions in ionic molecular solids of the perovskites ABX 3 are discussed, which take the results of molecular dynamics simulations of KCaF 3 as an example.

基于无调节参数的Gordon－Kim势和一种检测离子运动的新技术，以KCaF3的分子动力学模拟结果为例，对钙钛矿ABX3的离子分子固体的结构相变作了探讨。包括对阱势、折叠结构、能垒、超离子态、稳定性骨架和离子分子集团BX6的"尺寸"和"形状"。以期对离子分子固体的结构相变有一个基本了解

Three-dimensional numerical simulations were used to investigate the impact of HPDI injector interlace angle on a HPDI natural gas engine combustion.

采用三维数值模拟用于调查的影响， hpdi注射器交织的角度对hpdi天然气发动机燃烧。

Further theoretical research and computer numerical simulations should be conducted to reveal the intrinsical mechanism .

文中对电场诱导相变现象在实验上和理论上都做了初步的探讨，但在电场诱导相变的标度率方面的研究还以实验工作为主，有待从理论和计算机模拟上做更进一步的研究。

It is shown by frequency domain analysis and simulations that the transfigured controller can improve the dynamic behavior of the system if the frequency spectrum of the inverse of the non-transfigured controller has the low-pass and high-obstructive characteristics.

从理论上分析了如果用常规的回路成形算法设计出的控制器的逆的频谱具有低通和高阻特性，常规的回路成形控制器变形后能够改善系统的动态性能，并将之应用于船舶自动舵的设计中，获得了满意的控制结果。

In Chapter 4 we discuss the solvable theorem of adaptive inverse optimal control problems, and proceed with controller designs of global asymptotic stability in probability, adaptive inverse optimal stabilization in probability and output-feedback adaptive inverse optimal stabilization in probability for strict-feedback stochastic nonlinear continuous systems with additive standard Wiener noises and constant unknown parameters using It〓's differentiation rule and an adaptive backstepping algorithm. Control laws and adaptive laws can be obtained at one time by this design scheme. Many simulations have been performed to validate the properties of the proposed adaptive control scheme.

在第4章中，针对具有标准Wiener噪声扰动和未知定常参数的不确定随机非线性系统，提出并证明了自适应逆最优控制问题可解定理，构造了适当形式的四次型随机控制Lvapunov函数，基于It〓微分规则和自适应Backstepping算法，系统地设计了全局依概率渐近稳定控制器、自适应逆最优控制器、输出反馈逆最优控制器以及在设计中如何处理二阶Hessian矩阵函数的方法，这种方法可同时获得控制律和自适应律，通过实例仿真，表明该控制算法是有效性的。

Finally, numerical simulations for the forward and inverse problems are given.

最后，给出核素迁移模型的正问题和反问题的数值模拟。

Simulations and experimental results demonstrate that the performance of the inverter is high.

电路仿真及样机实验结果表明该逆变器具有良好的性能。

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。