不均匀分布

Under the influence of angle of joint and load, the distributing of displace field exits non-uniformity, and with the increase of joint dip angle the non-uniformity become stronger.

6受节理和加荷方向的影响，位移场分布存在一定的不均匀性，随着节理倾角变大，不均匀性增强。

In one side, the asymmetry of flow beget vortex and the separation of airflow which is the cause of pressure losses.

首先流动的不均匀性，一方面产生涡流和气流分离现象，引起流动阻力的增加；另一方面，造成温度分布的不均匀。

We obtained the accurate refractive index inhomogeneity without system error. At last, in order to resolve the question of the spherometer weared out at the laboratory long-term use, we proposed the method that use the interferometer to adjust the spherometer.

研究了测量光学材料的折射率不均匀性5种方法，建立了四步测量法的数理模型，并且在所研制的CXM100-2W式干涉仪上进行了样品材料的具体测量，在消除了系统误差的情况下，准确的得到了样品材料的折射率不均匀性分布。

Because of randomness of presetting the address matrix between the input and hidden layers, SDM produces unfavorable consequences for classification when handling unevenly distributed patterns. And its learning mode of outer product results in poor nonlinear mapping ability.

然而由于地址矩阵的均匀预置方式，使其在处理现实的非均匀分布时效果不佳；并且它的外积法学习方式使其表达非线性映射的能力不强。

Results: MRI features of primary malignant lymphoma were as follows:① single or multiple lesions, mostly in supratentorial region;② round or irregular in shape, hypointense on T1WI, hypointense or isointense on T2WI with homogenous signal;③ mild edema around the lesion with mild space occupying effect;④ remarkab1e enhancement of the lesion;⑤ involvement of leptomeninges and/or dissemination via ventricular ependyma;⑥ sensitive to chemotherapy and radiotherapy. Size and shape changed remarkedly after treatment.

结果：脑内淋巴瘤MRI表现为：①种瘤单发或多发，以幕上分布为主；②形态圆形或不规则形，T1WI呈低信号，T2WI以高信号为主，信号不均匀；③瘤周水肿及占位效应较轻；④增强扫描肿瘤明显不均匀强化；⑤可侵及软脑膜、室管膜并沿之播散；⑥肿瘤对放疗和化疗敏感；形态、大小变化明显。

Results: MRI features of primary malignant lymphoma were as follows:①single or multiple lesions, mostly in supratentorial region;②round or irregular in shape, hypointense on T1WI, hypointense or isointense on T2WI with homogenous signal;③mild edema around the lesion with mild space occupying effect;④remarkable enhancement of the lesion;⑤involvement of leptomeninges and/or dissemination via ventricular ependyma;⑥sensitive to chemotherapy and radiotherapy. Size and shape changed remarkedly after treatment.

结果：脑内淋巴瘤MRI表现为：①肿瘤单发或多发，以幕上分布为主；②形态圆形或不规则形， T1WI呈低信号， T2WI以高信号为主，信号不均匀；③瘤周水肿及占位效应较轻；④增强扫描肿瘤明显不均匀强化；⑤可侵及软脑膜、室管膜并沿之播散；⑥肿瘤对放疗和化疗敏感；形态、大小变化明显。

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。

The results indicate that the formation of loess vertical joints can be divided into two phases:① the formation of inner fissure, i.e. in the beginning of deposition, the undulation of terrain leads to uneven distribution of loess, then when it rains uneven collapsibility generates, which leads to generate inner fissures ;② the stage of fissure extension, namely loess continues deposition after the inner fissures have been formed, the increasing of the top pressure makes the top of inner fissure lie in the state of tensile stress, so, when the stress reaches its tensile strength, the inner fissure extends along the vertical direction and then becomes a vertical joint.

结果表明黄土垂直节理的形成可分为 2 个阶段：①内裂隙形成阶段，开始沉积时，由于地形的起伏导致黄土厚度上的分布不均匀，在降雨时产生不均匀湿陷，从而导致产生内裂隙；②裂隙扩展阶段，内裂隙形成后黄土继续堆积，顶部压力的增长致使裂隙顶部土体受到拉应力作用，当达到其抗拉强度时裂隙就会沿竖直方向产生扩张而形成垂直节理。

Friction on the die/sample interface, as well as imhomoginiety of temperature distribution in the samples is studied to account for the deformation imhomogeniety, and the two factors lead to the barrelling and fold-over of the samples during compression.

其直接原因是样品和压头间的接触摩擦条件随温度升高和Z值的降低而恶化，并导致样品出现腰鼓和侧翻等不均匀变化现象。合金压缩时的温度分布不均也是导致出现不均匀变形的原因之一。

The contribution of water concentration on the growth of carbon nanotubes was investigated. Scanning electron microscopy results showed that the grown CNTs in CH4/H2 gas mixure had chain-shaped structure and the diameter was about 40—90nm. With the addition of proper amount of water, the diameter of CNTs became uniform, and the surfaces of nanotubes were fully covered with nano-sized node-like structures. When more water was added, branched carbon nanotubes were synthesized.

场发射扫描电子显微镜结果表明，不加水时，制备出的碳纳米管直径不均匀，分布在40—90nm之间，呈链节状的结构；加入少量水时，制备出的碳纳米管直径比较均匀，集中在70nm左右，表面为瘤状结构；当水的流量进一步增加时，得到的碳纳米管表面光滑，出现了枝状结构。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。