分布参数

The experimental results show that the SOM method can get the best result for lesion recognition, the recognition rate of pork tissue and liver tissue are 96.1% and 91.7%, respectively. The recognition rate for PCA-LDA method is lower than that of SOM method because the feature of tissue lesion is linear indivisible.An effective clinic scheme is developed for NETE, and some problems are discussed. For example, nonuniform temperature field conduced by nonuniform energy field; tissue database construction; movement of HIFU transducer with ultrasonic transducer; rectification of HIFU parameters.

临床方案做了总体设计，并讨论了在临床应用中需要考虑的一些问题，如因HIFU辐射能量分布不均匀导致的焦域的温度场不均匀的问题，数据库的建立问题，HIFU换能器和超声探头的位移的问题以及HIFU辐射参数的确定问题等。

Firstly, we describe system model and traffic, and study the performance of combined input and output queueing nonblocking switching fabric, which is under queue loss transfer scheme.

我们首先对信元交换的典型—组合输入输出交换进行了分析，给出了交换结构分析模型、业务量的向量描述，导出了队列丢失方式下的信元丢失率与各参数的关系和排队时延分布。

And local dark focal spots may be obtained, the focal spot may evolve into a circle, a two-peak spot, or a curve line, which indicates that the combination of nonspiral and spiral phase plates can be used to form novel focal spots.

随着相位片参数变化，焦斑可演化成环形焦斑、具有两个光强峰值的焦斑、或是曲线形焦斑，这些现象说明可以将螺旋和非螺旋两种相位片结合用来调节焦点光强分布，得到新型焦斑。标签相位片焦点移动焦点破裂光陷阱

In this paper,based an the Monte-Carlo method,the outher has really analysed the distribution and statistical parameter of the effect of crane load in one-story industrial buildings with further consideration of the random position and combination of crane load .

本文充分考虑了吊车荷载的随机位置和多台吊车组合情况，采用Monte—Carlo方法分析了吊车荷载效应的分布及其统计参数，得出一些有意义的结论。

Using this model and the seismic source param...

用此模型和震源机制工作给出的震源参数，计算了四个典型地震的理论烈度分布。

And various pharmacodynamical parameters of α-asarone, a main effective constituent of Acrous Gramineus, in the body of rat have also been tested and the result has indicated that α-asarone taken orally can be absorbed quickly and distributed widely.

测定其主要有效成分α-细辛醚在大鼠体内各项药物动力学参数，结果表明：α-细辛醚口服吸收快，在大鼠体内分布广泛。

Objective To detect the reliability of nearinfrared parameters of blood oxygen of mammary gland phyma from the microvessel density of tumor.

目的 从组织微血管分布密度初探乳腺肿块血氧近红外光参数的可靠性。

The concept of entropy is applied to define an index on evaluating the abnormal condition. Prediagnosis of machine fault is made using the spectral structure distribution divergence as a criterion, in which the J divergence concept and multi-parameter evalution theory that describe the pseudo distances between the sampling signals and the corresponding standard faulty signals are used.

为此，基于信息熵提出了一个机组起停车过程转子运行状态的评估指标，并在此基础上，为实现机组运行故障早期预诊的目的，进而基于J散度及多参数评估理论，提出了信号频谱结构分布散度的概念，以描述实测信号与机组典型故障信号间的伪空间距离，从而实现了机组运行故障的初步预诊。

By comparison among concentration of nitrogen compounds, relative contents of pryyolic N-H shielded carbazoles and parameters of C21-/C22+、Pr/nC17 , the results show that slight biodegradation has little effects on the relative contents and distribution of pyrrolic nitrogen compounds, but has certain effect on its concentration.

根据2类原油中含氮化合物浓度、屏蔽型含氮化合物的相对含量与反晕原油生物降解的地化参数C21-/C22+、Pr/nC17等指标的对比研究，发现生物降解作用对该区原油中含氮化合物的相对含量及其分布影响不显，运移作用仍然是造成含氮化合物分馏的主要因素。

If the collected study sample form practical project is reprehensive, precise, then select the right network calculate parameters; it is a feasible and accurate study method to forecast the fragment-size distribution by artificial neural network.

只要从工程实际中所收集的学习样本具有代表性、精确性，再正确选取网络结构计算参数，利用人工神经网络对中深孔台阶爆破块度分布预测是一种可行，准确的研究方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。