模拟实验

Through the indoor platform experiment, road experiment and environmental pollution of analogue tunnel experiment, the paper investigates the smog emission amount of diesel and CO emission of automobile in different velocities.

通过室内台架实验、道路实验和模拟隧道污染环境实验，研究了不同车速下柴油车烟雾排放量和汽油车CO排放量。

The reference signal is man-made,of which the frequency is estimated by adaptive band-pass filter.

实验结果表明，本文研究的振动主动控制方法可以显著地提高模拟浮筏物理实验系统在实验频段内的减振能力。

Light output analysis tests character of spectrum radiate of pyrotechnic mixtures and analyses wave band distribute of light by comparing different static blaze spectrograms of the pyrotechnic mixtures. Screen out the better pyrotechnic mixtures according to request of pumping source. Press experiments in airtight erupt container experiment, which simulate the circumstance that pyrotechnic mixtures deflagrate in quartz pipe, realize the press influence to the quartz pipe wall and the disciplinarian of axes press variety. Apply these pyrotechnic mixtures to Nd:YAG lasers as the pumping source and compare pumping efficiency of different pyrotechnic mixtures. Pumping efficiency is an important standard which checkout if these pyrotechnic mixtures are the better pumping source. Sensitivity experiment analysis incarnate security of pyrotechnic mixtures that is the essential parameter in the process of design, manufacture and use.

通过对烟火药的热分析(爆热分析、DTA、TG)，了解备选烟火药反应过程中的能量输出特性及反应过程中的物理、化学变化规律；光输出分析实验对烟火药配方光谱辐射特征进行测试，比较其静态火焰光谱图，分析不同烟火药剂光辐射波段分布特征，根据激光泵浦源的辐射要求，进而筛选更符合激光泵浦源药剂要求的烟火药；模拟烟火药在石英管中爆燃环境的密闭爆发器压力分析实验反映了烟火药在石英管中反应时对管壁的压力影响以及管内轴向压力变化规律；将烟火药作为泵浦源应用于Nd：YAG固体激光器，比较不同烟火药的泵浦效率，作为检验烟火药是否适合作为激光泵浦源的重要标准；感度实验分析体现了各种烟火药的安全性，是烟火药设计、制造和使用的必要示性数。

Two kinds of the divergent detonation driving with point initiation are designed in this paper.

进行两种点爆发散爆轰驱动的实验设计，完成两种实验模型下爆轰驱动的数值模拟，并与实验结果作了比较。

However, there is no requirement for balcony in the present building fire design code and the building designers put no consideration on the fire-prevent function of the balcony.

在建筑火灾的研究中，根据相似理论建立对应模型进行模拟研究是很有用的，其优点是没有实际现场实验的高额费用，还可以根据要求灵活地改变实验参数，并能够容易地获得较高精确度的理论实验结果。

First of all, the relationship between strain and pressure of slide valve membrane sensor under different loads was analyzed and simulated by using ANSYS software; then an experimental device was designed and used to calibrate the slide valve membrane sensor.

首先采用ANSYS软件模拟了阀瓣膜传感器承受不同载荷下的应变与压力的关系；同时也设计了一套阀瓣膜传感器的标定实验装置，利用该实验装置对阀瓣膜传感器进行了标定实验。

To validate the theoretical predictions, an insole embedded with heating wire was made. Infrared thermometer and thermocouple data acquisition system were adopted to evaluate the working performance of the heating insole. The powering capability of lithium cell as used in the insole was also tested through subsequent measurement.

同时设计加热实验对数值模拟结果进行验证，引入红外成像技术及热电偶测温方法对实验过程及结果加以观测和记录，并对实验中所采用的锂电池供电性能进行测试。

By analyzing these data,it was concluded that:1The combustion of wood,including rate of heat release,total heat release,effective heat of combustion,mass loss rate,smoke ratio,specific extinction area,concentration of CO_2 and the yield of CO_2Y_(CO2,were decreased considerably by the treatment of FRW;2There is a strong synergistic effect of fire retardance between GUP and boric acid;3The trend of MLR curve of FZ was similar to its RHR curve,weight loss and heat release were happened mainly in flaming phase;4Char formation of wood was markedly accelerated by FRW,which indicated that catalytic charring effect of FRW on wood is the primary side in its fire-retardation mechanism.

对于组成和结构变异性很大的木材而言，由于CONE实验所使用的样品量相对于其他分析方法要大得多，因而实验结果比较有代表性。此外，CONE实验可在模拟火灾条件下进行，这是该方法的又一突出的优点[5～6]。木材阻燃剂FRW主要由磷酸脒基脲和硼酸组成，此外还含有

Analytical formulae are presented for the first time to describe the shift in the resonance wavelength of LPG in response to etching of the fiber cladding or a change in the external refractive index. The accuracy of the formula is confirmed by comparision with numerical simulations and experimental results. We demonstrated that the resonance wavelengths of an etched LPG are more sensitive refractive index than those of an unetched grating. The bending properties of long period fiber grating written in different type fiber are studied experimentally. The transmission peaks and the central wavelength of LPG change with the bending of the fiber. A new peak appears at the shorter wavelength when the fiber is being bent. The changes of the peaks are different for different photosensitive fiber. Those properties have broad application foreground in fiber sensors and tunable filters.

分别从理论和实验上对长周期光栅的折射率特性以及光纤包层半径对长周期光栅特性的影响进行了研究，首次给出了描述光纤包层半径腐蚀和外界折射率改变与长周期光栅共振波长关系的理论表达式，实验与理论和数据模拟的结果很好符合，利用腐蚀光纤包层的方法可以有效地提高LPG的折射率灵敏度；对不同光纤中写入的长周期光栅的弯曲特性进行了实验研究，LPG的透射峰形状及其中心波长随光纤弯曲而发生变化，并且随着弯曲将在短波方向出现新的透射峰，其透射峰的变化规律因所用光敏光纤的不同而不同，这一特性在光纤传感和可调谐滤波器方面有重要的应用前景。

By three-dimensional linear standing wave,the wave propagation over a bar of scheldt flume experiment carried at Delft hydraulics and tidal current field simulation of waters of between Denmark and Sweden etc example,the model is verified to have advantages such as stability, high efficiency etc,and proved suitable for the simulation both water body of large range and long period.

最后通过三维线性驻波、Delft水力学中Scheldt水槽实验的周期性入射波通过淹没潜堤的传播问题以及连接丹麦和瑞典间海域的潮流场模拟等算例，从多方面验证了模型具有稳定、实用、高效、灵活等的优点，不但能对短波问题进行精确成功的模拟，而且也适合对大范围的水体进行长时段的模拟。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷