不连续

Researches show that the drive force characteristics of the electric tractor drive system based on series DC motor is close the ideal characteristics, the curves are concave, low speed with constant power, and high speed with constant torque; the electric tractor has large working speed under different shifts, but the extensive coincidence speed shows that the variable ratio of the gear is unreasonable; the maximum climbable gradient of this electric tractor is more than 30%, and does not need frequent shift when working for its extensive climbable gradient; there are many influence factors of continuous working time, which the more obvious factors are working speed and working load, the working time increases with the increase of the working speed and working load.2. Simulation researches on the drive characteristic of the electric tractor.

研究结果表明：基于串励直流电动机(来源：ABC21论文网www.abclunwen.com)的电动拖拉机电驱动系统的驱动力特性场接近理想驱动力特性场，其各挡下的驱动力特性是一组下凹的曲线，低速恒转矩，高速恒功率；同一行驶速度下所对应高挡驱动力大于低挡驱动力，这是由电机的调速特性决定的；电动拖拉机各个挡位下具有较广的稳定作业速度范围，但是各个挡位之间速度重合的范围较多，说明所用变速箱变速比与电动机匹配不合理；电动拖拉机最大爬坡度达到30%以上，并且各挡爬坡度变化范围较广，作业过程中不需要频繁换挡；影响电动拖拉机连续作业时间的因素较多，其中作业行驶速度和作业负荷影响最为明显，作业负荷越大，连续作业时间就越短，作业速度越快，连续作业时间就越短。2、电动拖拉机驱动特性仿真研究。

At first, the existence of extended form of approach to continuous selection for any set valued mapping without any continuity restriction in para-compact metric space is proved ;by the topologically separated mappings , the approximate selection theorem of sub-lower-semi-continuous mapping is established, furthermore , continuous selection problem in H-space is studied. Next, with W-correspondence, an improved variational inequality is obtained ; by the H-KKM mapping ,Ky Fan\'s minimax inequality is generalized to H-space . At last, with H-convexity instead of the linear topological structure, a new version of Browder fixed point theorem is established.Chapter 3 deals with set-valued mapping vector variational inequality and minimax problems.

第二章首先在仿紧的度量空间上对任意的集值映射建立了新的逼近连续选择定理，利用映射的拓扑可分性，在H-空间上建立了次下半连续映射的逼近连续选择定理和一个新的连续选择定理；然后利用W-对应，在H-空间上建立了广义的变分不等式；利用H-KKM映射，在H-空间上建立了广义的KyFan极小极大不等式；最后，利用H-凸性代替拓扑线性结构，在H-空间上建立了一个新型的Browder不动点定理。

In chapter one,the backgrounds and current situation of operator theory in Banach space are introduced and the preliminaries of Banach space are given.In chapter two,we study the existence and uniqueness of fixed point for decreasing strict-set-contraction operator in product space.Under the weak continuous condition,we obtain the existence and uniqueness of fixed point for decreasing operator and we give an application of these results; In chapter three,we get several positive fixed point theorems of decreasing operator and the existence and uniqueness theorems of positive fixed point for operator C=A+B,C=D-A in real Banach space where the order is decided by a normal cone; In chapter four,we obtained some existence and uniqueness theorems of fixed point for some mixed monotone operators in semi-ordered Banach space.

在第一章中，主要介绍了半序Banach空间非线性算子的研究历史背景、现状以及半序Banach空间中的预备知识；在第二章中，我们利用半序方法研究了Banach乘积空间中严格集压缩减算子不动点存在唯一性问题，在弱连续的条件下，得到了不动点的存在唯一性和迭代收敛性，同时，给出了它们的一些应用；在第三章中，我们建立了拟弱连续减算子的正不动点定理，并证明了算子C=A+B，C=D-A的正不动点存在唯一性定理；在第四章中，我们得到了半序Banach空间中混合单调算子的不动点存在性及唯一性定理。

The results showed an increased mean jitter value, fiber density and abnormal percentage both in EDC and AT muscles in group 1 and II diabetic patients comparing to the normal controls. These findings suggest an impaired or immatured neuromuscular junctions and an evidence of reinnervation through axonal sprouting in the diabetic patients either with or without nerve conduction abnormalities. In conclusion, the changes of axonal degeneration and reinnervation are the main pathophysiological mechanism of diabetic neuropathy, and the SFEMG is more sensitive than routine nerve conduction study in the diagnosis of diabetic neuropathyKeyword Axonal degeneration , diabetes mellitus , neuropathy , single fiber electromyography

结果显示两组糖尿病病患的连续间值差异，肌纤维密度及不正常比率比对照组显著增加(t试验，依序p.01)，在第一组糖尿病患中，伸指总肌的连续波间值差异比第二组高(p.05)，而连续波间值差异与纤维密度之间也成线性相关的增加(伸指总肌，r=0.471，p.01；胫前肌，r=0.386，p.02)，在伸指总肌测得的连续波间值差异上，第一组糖尿病患有75%不正常，第二组有33.3%不正常，而在胫前肌的连续波间值差异上，第一组糖尿病患有83.3%的不正常，第二组有75%不正常，在肌纤维密度的测定中，第一组糖尿病患的伸指总肌有27.8%不正常，胫前肌有58.3%不正常，第二组病患的伸指总肌有25%不正常，胫前肌有41.7%不正常，此结果表示糖尿病神经变造成的神经肌像交接处不稳定及有神经轴再生的重分布现象，因此也证实糖尿病神经病变的主要病理机转为神经的退化所致，而在诊断上单纤维肌电图检查的敏感度也比运动神经传导速度检查为高。

They give off discrete amounts of radiant energy.

它们放出不连续的辐射能量。

For example, in an optical rotation test, several discrete measurements are averaged to determine the optical rotation for a sample, and this average is reported as the test result.

在旋光度测试中，将几次不连续的测定结果进行平均以确定样品的旋光度，这个平均值可以作为检验结果。

Results: All lesions showed classical features on CT with varying degree of matrix mineralisation, 8 of 10 located at attached bone of vertebral b...

结果：全部10例骨母细胞瘤病灶内部CT表现均为典型的斑点状或沙粒状骨化，10例中有8例位于附件骨，7例表现有周围不连续的硬化带，3例受累骨密度普遍增高，2例出现附近软组织肿胀影。

The present paper deals with a simulation method to study the performance of a cycloconverter-fed synchronous motor drive in the presence of interharmonics/subharmonics taking into account the discontinuities in the output current as well as the effect of ripple in the output current on the input current of the cycloconverter.

用仿真方法研究了交交变频性能喂食存在的谐波同步电机驱动，给出/谐波考虑到不连续的输出电流，以及在关于输入输出电流的涟漪效应目前的交交变频。

Methods TIL in the patients with PHC were separated with combinative enzymatic digestion of type Ⅰ,Ⅳ collagenases,type Ⅴ hyaluronidase and type Ⅰ deoxyribonuclease followed by discontinuous density gradients.Cytotoxicity of TIL to liver cancer cells was detected with MTT method.

采用Ⅰ型和Ⅳ型胶原酶、Ⅴ型透明质酸酶和Ⅰ型DNA酶四联酶消化，应用不连续密度梯度离心分离TIL，采用MTT比色法检测TIL对自体癌细胞及肝癌细胞株的细胞毒。

But nowadays, modern electric technique uses "Seurat's point"---the discontinuous "Bit" to figure to the digital realistic world.

而今，现代电子技术却拿&修拉式的点&——数理本质的、不连续的&比特&来塑造数字化的现实世界。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐