Design and Experimental Investigation of Exhaust Diffuser of Jet Engine Test Bed

A New Method of Improving a Diffuser with the Shroud Vane Effects of leading-edge modification on secondary flow in turbine cascades

无叶扩压器轮盖侧加装导叶的改进方法叶片前缘改型对涡轮叶栅二次流的影响

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The investigation shows the performance gets quite insensitive to the prewhirl angle of IGV as the stagger angle of diffuser vane is reduced to the minimum 7 °;

研究表明：扩压器进口安装角最小值为7°时，压缩机性能对进口导叶预旋角不敏感；

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A Study on the Effect of Step Diffuser and Holey Plate Installed in Open Type Headbox

孔板和阶梯扩散器对敞开式流浆箱性能影响的研究

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Sprayed BaSO 4 diffuser plate is the most Lambertian surface actually used in spectral radiance calibration known by now.

表面喷涂硫酸钡的漫反射板正入射时是最接近朗伯特性的用于标定光谱辐射亮度的实用漫反射板。

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Application of BaSO_4 Diffuser Plate in 250-400 nm Spectral Radiance Calibration

硫酸钡漫反射板在250～400nm光谱辐射亮度标定中的应用研究

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A optimal diffuser stagger angle should exist at a fixed mass flow rate to make the diffuser have highest efficiency;

在给定的流量工况下，应存在一个最佳的进口安装角，使得扩压器效率最高；

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The results, which obtained by using radial diffuser, show that due to the high loss through the diffuser, the efficiency of the liquid hydrogen pump is lower.

采用径向导叶的液氢泵的试验结果表明，导叶损失大，导致液氢泵效率低。

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Some special requirements must be considered in rocket design, such as the flight Mach number during sampling flight, the flow coefficient and aerodynamic characteristic of sampling diffuser, the efficiency of filter material and others.

该火箭的设计需要考虑取样飞行马赫数、取样扩压器的流量系数和气动特性、取样过滤材料的效率等特殊要求。

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Therefore, when the endoscope is used for illumination, softer and diffused light rays can exist, when the luminous source is used as the illuminating lamp, better brightness can exist.

据而，在内镜照明时可有较为柔和扩散的光线，而作为照明灯使用有更好的亮度。

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The early sound field is non-statistic, different from diffused sound field, therefore it can not be predicted by the diffused field theory.

因而有关与早期反射声能相关的音质参量在厅堂中的分布情况无法用扩散场的理论来预计。

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The experimental results of dual emitter ballasting using a complex emitter ballasting resistor which is provided by a diffused silicon resistor and a poly silicon resistor in silicon microwave power transistor are reported.

本文报道了采用多晶硅电阻和扩散电阻组合而成的复合镇流电阻对硅微波功率器件进行二次发射极镇流的实验结果。

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In addition, this paper describes the photocurrent effect and the conductivity modulation effect on diffused resistor s as well as the model in which the diffused resistor varies with γ radiation rate.

论述了扩散电阻的光电流效应和电导调制效应，以及扩散电阻随γ剂量率变化的模型。

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Diffused resistor model under ESD stress in linear, saturation, multiplication and snapback, and secondary breakdown regions was analyzed.

对ESD应力下扩散电阻的四个区域：线性区、饱和区、雪崩倍增和负微分电阻区、二次击穿区的模型进行了分析。

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Latent damage in n-well diffused resistor under ESD stress

ESD应力下n阱扩散电阻的潜在损伤

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In addition, the successful development of a new sealant has tackled the sintering problem of diffusion agents at high temperatures and the quality and performance of diffused layer of steel are greatly improved.

研究了一种封闭剂，重点解决了渗剂高温氧化烧结问题，使渗层质量优良、性能稳定。

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It is also shown that to measure impurity concentration and/ or the distribution of impurity concentration is a better way for checking the diffused layer quality.

而测量杂质浓度或杂质浓度分布，将是检查扩散层质量的较好方法。

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There exist both the dislocations with high density and the dislocation loops in the ferrite in the diffused layer.

扩散层铁素体中存在高密度位错及位错环。

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The quality of co& diffused layer is exactly up to the level of imported gear.

渗层质量完全达到进口齿轮的水平。

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The results showed that the compositions of diffused layer were different under different voltages;

试验结果表明：在特定的电解液体系下，不同的工作电压，所获得渗透层的相组成不同；

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When measuring a shallow diffused layer at low concentrations, reliable measurement free of noise are difficult to make.

测量低浓度浅扩散层时，无干扰的可靠测量很难实行。

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