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The laws and influencing factors of denitrification in soil are studied by the simulated experiment in this paper.

该研究对设计土地处理系统运行条件与选择新型污水自然处理技术，有一定的指导意义。

The normal hybrid genetic algorithms include genetic algorithm combined with steepest descent method and simulated annealing genetic algorithm.

常见的混合遗传算法有遗传算法与最速下降法相结合、遗传算法与模拟退火法相结合。

A practical cooling regime was established then, and a network with better performances was obtained by combining simulated annealing algorithm with gradient descent method.

将模拟退火算法与传统的梯度下降法结合，用于人工神经网络的优化与预测，得到了预测效果等与迭代时间性能更好的神经网络。

This paper measured the constitutive relation of soil in the condition of the low stain-rate by Split Hopkinson Press Bar technology. It offers the reference for study in high stain-rate in the future. And simulated the explosion between soil and concrete by finite element dynamic analysis software LS-DYNA3D. Finished the numerical simulation for power of exploding between soil and concrete in different position of detonator and different scale model. Set out the curves of displacement, velocity, acceleration and pressure of different position. Obtained the destructibility of concrete target in different explosion condition. It offers data reference for theory studying and engineering designing.

本文首先利用分离式Hopkinson压杆实验技术测定了土在低应变率下的本构关系，为以后进行较高应变率下的研究提供了参考；后面着重利用三维显式非线性有限元动力分析软件LS-DYNA3D对土壤混凝土介质中的爆炸进行了数值模拟，采用土壤混凝土分层介质模型，完成了不同装药位置、不同缩比模型的混凝土模型中爆炸威力的数值模拟，测定了不同情况下的压力曲线及典型位置的质点位移、速度、加速度和压力，得出了混凝土靶在各种不同爆炸条件下的破坏情况，为理论研究和工程设计提供了数据参考。

This paper simulated the detent process of lift by adams, the effect of changing the angle of the safety clamp and the load is also be listed.

本文通过动态仿真软件adams，对电梯制动过程进行现场重现，得出安全钳角度和电梯载重对电梯制动效果的影响。

In the dissertation, a new quadratic architecture 2FBA was proposed. To minimize the area, we developed a deterministic array optimization algorithm. It, like simulated annealing algorithms, has the property of climbing out of local optimums.

本论文还提出了一个新的二次布图结构：2FBA，为了减小其布图面积，我们提出了一个确定性的阵列优化算法，此算法的结果和模拟退火算法的结果类似，具有绕开局部最优的能力，然而，它的计算时间比模拟退火算法少得多。

In addition, the transition from statistical optimization of simulated annealing to deterministic optimization of simplex method is also taken to shorten run time. Secondly, two methods are used to automatically synthesize cell-level analog circuits, which include equation-based method and simulation-based method.

具体来讲，采用对解空间进行划分、并多区间优化的方法来解决多维下降单纯形算法的全局优化问题；采用求解好的迭代起始点、并由"统计优化"向"确定性优化"过渡的方法来加速模拟退火法的收敛速度。

A compliant microgripper numerical example is simulated to show that reliability-based topology optimization yields mechanisms that are more reliable than those produced by deterministic topology optimization and also certificate the validity of the proposed method.

最后以柔顺微夹钳的可靠性拓扑优化为例，说明本文所提方法的正确性和有效性，研究结果表明基于可靠性拓扑优化所得机构比确定性拓扑优化所得机构更合理。

The transient thermal characteristics of the lasers operated in pulse driving conditions are simulated for the first time; results show that at pulse driving condition, the apparent thermal resistance of the device is pulse parameter dependent, especially at lower duty cycle.

通过分析，得到在脉冲激射下，激光器的表观热阻跟输入的脉冲周期和脉宽有关，表观热阻值随注入脉冲占空比的增加而减小，并趋近于稳态热阻。

The stress field of diamond reinforced porous metal matrix composites are simulated using the model under the shear load.

数值分析了以金刚石为增强颗粒的多孔金属结合剂复合材料在横向剪切载荷下的应力情况。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。