微小模型

For the sake of accurately estimating the contact force, we describe a new method, in which the contact force is considered as a jump function of time, and by use of response to jump function, the history of impact force is detected in the duration of rotor contacting with stator.

为更准确地获得接触作用力，本文将接触过程中转子所受作用反力函数视为在微小时间间隔下的阶跃函数，提出一种计算接触作用力的新模型，利用系统对阶跃函数的响应可以得到转子与定子碰摩时的切向摩擦力与法相作用力的时间历程及相应的位移、速度量。

For instance, adjust the two clocks straight on top of each other, or offset slightly, trying to stimulate various modes of ground bounce, board crosstalk, or metastability that you believe might influence your system.

尝试模仿被认为影响系统的各种地波动、板干扰或亚稳度模型，调解两个时钟直到彼此覆盖或发生微小偏置。

Numerical examples show that the least- squares images can be efficiently retrieved in a few iterations of conjugate gradients method.

数值实例表明，通过少数的共轭梯度法迭代，就能得到与真实模型差别很微小的偏移效果。

Objective To establish a rat model of minimal change nephropathy and to study the role of oxyˉgen free radicals in the pathogenesis of nephrosis.

目的 制作大鼠微小病变型肾病模型，探讨氧自由基在肾病发生中的作用。

Objective To establish Anopheles minimus density evaluation model based on climate, environmental and remote sensing data.

摘要目的借助气象、环境与遥感监测指标建立微小按蚊密度评价模型。

In 1986, R.D.Cook proposed differential geometry to assess local influence of minor perturbations of linear statistical models. Poon and Poon(1999) constructed a conformably invariant curvature , the conformal normal curvature, for the same purpose.

Cook(1986)用微分几何的方法评估了线性统计模型微小扰动的局部影响，Poon and Poon(1999)改进了Cook提出的统计曲率概念，定义了保形法曲率。

Objective To investigate the change of white microthrombus and vascular endothelium function in pia mater microvessel of rabbit model with hyperhomocysteinemia.

目的 观察高同型半胱氨酸模型兔软脑膜微血管口径、白色微小血栓数量和血管内皮功能变化及其相关分析。

InSAR (Interferometric Syntheic Aperture Radar) is a new microwave remote sensing technique with great developing potential. It can be applied to form DEM, mapping and monitoring minor terrestrial deformation in large area.

InSAR是极具发展潜力的微波遥感新技术，可应用于数字高程模型的产生、制图和大范围微小地表形变的测量。

The innovations of this paper as follows:(1)The topological relation model between complex spatial objects is brought forward, which represented by some composite basic 9I matrix and results in general signification.(2)Time and space integrated topological model is suggested to reason about spatio-temporal change types;(3)Sweep-line algorithm is improved, and a new little circles of polyline nodes overlapped with region method is proposed. As result, it's efficient to calculate line-line, line-region and region-region topological relations.

本文的创新之处在于提出了一种能够描述复杂对象的数学表达模型，将复杂对象间的复合拓扑关系表示成基本拓扑关系的组合，具有一定的普适意义；研究了时空拓扑关系的内涵和表达方法，说明利用时空拓扑关系可隐性地实现时空变化语义的查询；对平面扫描线法进行了改进，提出了一种新的节点微小圆求交的算法，可有效地解决线面、线线、面面拓扑关系的计算问题。

The method is to choose the structure and parameter of fuzzy logic control system properly, so as to make the controller's output equal to the value determined by prior experience absolutely or approximatively, which can make the system output exist in a tiny neighborhood of the given value.

其基本思想是：合理确定模型逻辑控制系统的结构和参数，使系统处于稳态时控制器的输出等于或近似等于某个先验知识确定的值，该值能将系统输出维持在设定值的一个微小领域内。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。