查询词典 homogeneous distribution

A modified homogeneous flow model was introduced to calculate the flow field in RH degasser,thus getting rid of some earlier methods that are unavailable to be generalized,such as reducing the computation region or presetting the distribution of gas volume fraction.

分别对有、无旋转磁场作用时的RH系统进行了模拟计算。模拟结果表明：流场和脱碳过程与现有文献中实验结果相符合；当旋转磁场作用后，磁感应强度为0.04 T时，初期脱碳速度比无旋流作用时增加了约15%，这是由于旋流增加了系统的搅拌能，提高了脱碳反应速率。

The problem of statistical discission in finite mixing distribution model and linear model is discussed in this thesis,including:Firstly,in the aspect of hypothesis test,we mainly discuss the general homogeneous hypothesis testing problem.

现将主要内容概述如下：一、在假设检验方面，本文主要研究了正态混合分稚模型的同构性检验问题，也就是说，检验观测数据究竟是来自单一的正态总体，还是混合正态总体。

The results show that, by the way of optimizing preparation condition, the spherical zirconia powders with suitable particle size distribution are prepared using chemical precipitation method. Using heterogeneous chemical precipitation coating technique, the sph, erical nickel coated zirconia powders are prepared and the heterogeneous nucleation can be done on the surface of spherical zirconia powders. The thickness of coated layer, homogeneous degree and crack of surface can be controlled by the way of controlling powder concentration, adding rate of reactants feeding and adding surface active agent.

研究表明，采用化学沉淀法，通过优化制备工艺条件，可以制备粒径分布较均匀的球形氧化锆粉体；利用非均相化学沉淀包裹技术制备的金属镍包裹氧化锆微球粉体，球形氧化锆颗粒表面作为异相成核的场所，通过控制颗粒浓度、加料速度以及添加表面活性剂等工艺条件，可以调控包裹层厚度、表面均匀度以及表面裂纹等。

With the transition of geomorphological belts,most of the distribution patterns of populations were spatially homogeneous.

灌丛植被在新疆一般不具有地带性意义，但却广泛分布于山地、河谷和平原，尤其以柽柳灌丛分布最为广泛[1]。

The hole diameter differences of various and sections in Wang 80?3 well in Jianghan Oil Field have been measured.With the help of finite element method and model recognization theory,association of time and gypseous salt creep deformation,the strain distribution of casings_heterogeneous and homogeneous loads,the effects of manufacturing defects on casing stress and the cement...

借助模型辨识理论及运用有限元方法，研究了盐膏层蠕变与时间的关系、套管在均匀及非均匀载荷作用下的应力分布、套管制造缺陷对套管应力的影响以及水泥环对套管的保护作用等，所得结果为工程实际应用提供了定量的参考依据，具有很好的推广应用价值。

Order of discontinuity ladder gradient separation: The nature school DNA separation purification conventional routes are use the gold to manage the CsCl idiomorphic to become the gradient balanced equilibrium density centrifuge process, the offcenter starts when the gold manage the CsCl density to be homogeneous, sample uniform distribution in which.

不连续阶梯梯度分离：质校DNA分离纯化传统方法是采用金管CsCl自形成梯度平衡等密度离心法，离心开始时金管CsCl密度均一，样品均匀分布其中。

The characteristics of CaBP-LI positive rubrospinal neurons in the red nucleus showed that these neurons was not homogeneous. Rubrospinal neurons had their subpopulation in term of CaBP like immunoreactivity (from strongly posotive to negative) and special distribution features.

大鼠红核-脊髓投射神经元的CaBP-LI阳性和CaBP-LI阴性两种亚型及其分布特点说明，这些神经元的性质并非均一，并可能与红核-脊髓投射神经元对钙超载具有不同的耐受性有关。

Rubrospinal neurons in the rostral portion still showed CaBP-LI negative. Conclusion The characteristics of CaBP-LI positive rubrospinal neurons in the red nucleus showed that these neurons was not homogeneous. Rubrospinal neurons had their subpopulation in term of CaBP like immunoreactivity (from strongly posotive to negative) and special distribution features.

大鼠红核-脊髓投射神经元的CaBP-LI阳性和CaBP-LI阴性两种亚型及其分布特点说明，这些神经元的性质并非均一，并可能与红核-脊髓投射神经元对钙超载具有不同的耐受性有关。

The characteristics of CaBP-LI positive rubrospinal neurons in the red nucleus showed that these neurons was not homogeneous. Rubrospinal neurons had their subpopulation in term of CaBP like immunoreactivity (from strongly posotive to negative) and special distribution features.Key words: calbindin-D28k; immunocytochemistry; red nucleus; rubrospinal tract; rat

大鼠红核-脊髓投射成年人神经元的CaBP-LI阳性和CaBP-LI阴性两种亚型及其分布特点说明，这些成年人神经元的性质并非均一，并可能与红核-脊髓投射成年人神经元对钙超载具有不同的耐受性有关。

Investigating the influences of processing parameters on the C/Si molar ratio of resulted nanosized SiC powders indicated that there was a direct pyrolytic reaction from DMS to SiC as well as the previous proposed two-step reaction. Under the optimized processing conditions, the silicon carbide powders of homogeneous particle size distribution, spherical shape and stoichiometrical C/Si molar ratio are obtained. The silicon carbide particle consists of β-SiC crystallite arranged randomly.

论文系统研究了工艺条件对产物粉体C／Si摩尔比、粉体颗粒尺寸和组成粉体的SiC微晶尺寸的影响；研究了粉体制备过程中可能发生的化学反应，提出了反应过程中除了分步进行的生成SiC的反应外，同时在高温区还存在一步完成的生成SiC的化学反应的观点；通过调整工艺参数，制备得到了粉体尺寸分布均匀、呈均匀球状、C／Si摩尔比符合化学计量比的颗粒尺寸为40nm的纳米SiC粉体。

If you are committed to an education career, then the Master of Arts in Education from Ashford University is for you.

如果你是致力于教育事业，那么，艺术教育硕士学位阿什福德大学是给你的。

objective:to explore the expression of survivin protein and its mrna in rectal cancer and their clinic significance.

目的：研究凋亡抑制因子survivin蛋白及其mrna在直肠癌组织中的表达及其与临床病理关系。