模拟实验

By carrying out ~1H spin-diffusion experiments,the domain sizes of DNA in the complexes were determined.The domain size of DNA is found to decrease greatly when the N/P ratio changes from 0.5 to 3 and changes only slightly with further increase of the N/P ratio.After making a thorough analysis and discussion on drug control release and gene delivery systems with general NMR techniques,we presents a method of 1D PFG NMR technique to realize quick observation on the Mw change of polymer during its degradation process.Moreover,according to the inverse Laplace transformation theory and based on a function of diffusivity distribution of polymer in solution,2D PFG NMR technique is developed to measure the Mw distribution of polymer.Combined with Monte Carlo simulation,the degradation mechanism can be figured out.

从发展新的核磁共振方法，拓展核磁技术应用范围的角度来看，本文首次提出了采用一维脉冲梯度场技术快速测量降解过程中聚合物的分子量变化的新方法；并首次将Monte Carlo模拟与PFG实验结果进行了关联分析，从而不仅可以实时观测体系分子量的变化，而且可以对体系的降解机理进行深入分析；首次将延伸型指数函数引入对自扩散曲线的拟合，并通过反拉普拉斯变换，建立了一种实时测量聚合物体系分子量分布的新方法；首次将固体核磁共振的研究方法，引入聚合物/DNA复合物体系的研究。

A boundary integral method is adopted to simulate the bubble motion in the fluid field on the assumption that the fluid field is inviscid, irrotational and incompressible. A corresponding three-dimensional computation program is exploited and the calculated results agree well with the experimental data.

将气泡运动阶段周围的流场假设为无黏、无旋、不可压缩的理想流体，运用边界积分法模拟流场中气泡的运动，并开发了三维计算程序，计算值与实验值吻合较好。

The simulated isotherm from our model is in good agreement with the experiment, which indicates that the method proposed in this work can be used for characterization of MCM-41 adsorbents.

通过计算机模拟与实验数据的比较发现，这种势模型可以较好地拟合氮气在MCM-41中的吸附等温线。

The researchers believe that their simulations could prompt new experimental work with Janus particles.

研究者相信他们的模拟可以促发对Janus粒子新的实验。

The purpose of present work is to study the mechanism of sulphate karst and its influence factors by laboratory experiments.

本文采用室内实验模拟的方法，根据岩溶发育的影响因素，研究了硫酸盐岩的溶蚀机理。

Based on the hydrodynamic theory of dense gas-solid flow and the kinetic theory of dense gases proposed by Chapman and Cowling, the kinetic theory of cohesive particles flow and constitutive equations of cohesive particles are established.

目前科学家们对粘附性颗粒的流态化研究主要集中于实验研究，数值模拟研究做的比较少，特别是对传统的双流体模型，如何进一步改进完善，以适应粘附性颗粒的气固两相流动的研究，成为当务之急。

At the same time, they simulated the working characteristics of reflecting klystron according these voltage and currents by software.

同时将测量所得的实验值输入计算机模拟程序，动态绘制出当前状态下的速调管工作图像。

At the same time, we simulated the working characteristics of reflecting klystron according these voltage and currents by software.

同时将测量所得的实验值输入计算机模拟程序，动态绘制出当前状态下的速调管工作图像。

In the subjects given, learners operate an integrated simulator landing stage of flight data to meet the aircraft and instructors to give students hands-on consolidated results. And then for the visual route trilateral, quadrilateral, and five edge-to-landing phases, with 37 operators' experiments through interviews with senior instructors, the instructors selected seven simulator modules to assess and define the effectiveness of the actual operation of the parameters. Through the way of neural network learning , the establishment of the definition of parameters of simulator training with the students finished the cause and effect comprehensive results relationship, so this research create a set of objective assessment of the effectiveness of flight training simulation platform.

在给定同样操作课目之下，以学员操作落地阶段之模拟机综合飞行数据，配合学员实际操作飞机教官给予之综合成绩，再针对目视航线三边、四边及五边到著陆阶段，以37位操作者为实验，各选取七个模拟机数据，透过资深教官访谈，定义教官评量学员实际操作成效之参数，透过类神经网路的学习，建立模拟机定义参数与学员完训综合成绩的因果关系，如此即可建立一套可以客观评估飞航训练成效的研究模拟平台。

The spherical heat transfer models of three primary explosive particles lead styphnate, nickel hydrazine azide NHA and nickel hydrazine nitrate (NHN were calculated by Fourier analysis and numerical simulation.

对斯蒂芬酸铅、叠氮肼镍和硝酸肼镍进行单颗粒球形传热模型的Fourier分析和数值模拟，并对三种药剂进行了SCB点火实验。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失