小高

Diamond-like carbon has the potential applications in the biomedicine because it possesses high mechanical hardness and low friction coefficient and chemical inertness and biocompatibility.

类金刚石膜具有很高的硬度、很小的摩擦系数、很高的化学稳定性和很好的生物相容性，在生物医学领域中具有巨大的应用价值。

Both the spousal transmission and mothertochild transmission resulted in higher intrafamilial transmission rate (47.8%[32/67] for familial transmission,40.9% [27/66] for MTCT,and 16.5% [19/115] for spousal transmission).Intrafamilial transmission rates of HIV by wife and husband carriers were 38.5%(37/96) and 9.5%(2/21),respectively.The intrafamilial transmission rate was higher in familes with younger wife infector and long time existense of spousal transmission risk factor.The MTCT was not influenced by the time of MTCT factor existence.

家庭内夫妻传播和母婴传播危险因素并存导致家庭传播率高达47.8%(32/67)，存在母婴传播因素的家庭传播率为40.9%(27/66)，存在夫妻传播因素的家庭传播率为16.5%(19/115)，妻子作为家庭引入病例导致38.5%(37/96)的家庭传播率，丈夫作为家庭引入病例的家庭传播率为9.5%(2/21)；妻子感染时的年龄越小，家庭传播率越高；夫妻传播危险因素存续时间越长，家庭夫妻传播率越高；母婴传播危险因素存续时间长短不影响家庭母婴传播率。

In this paper,we build symplectic structure of 2-nd order and high order singular differential operators on infinite interval, we construct a symplectic space by the maximal and minimal operator domain .

本文研究了无穷区间上二阶、高阶奇型微分算子的辛结构，利用最大与最小算子域构造了一个辛空间，用辛空间中的线性流形来刻画定义在无穷区间上二阶、高阶奇型对称微分算子的自共轭扩张问题。

The signal amplifier should have features like low noise signal, zero drift, high precision, wide frequency band, high input resistance, and low output resistance.

信号放大器应该有特点，例如低噪声信号，零点漂移小，精度高，宽的频带，高输入电阻，低输出电阻。

Comparisons reveal that: plan of GSM Modem is fit for circumstances of low communicating frequency , insensitiveness of data delay and low cost; plan of GPRS DTU adapts to occasions of high communicating frequency, low delay, large data flow and restrict requirement of security.

比较的结果表明，GSM Modem方式适合于通讯频率小，数据延迟不敏感，费用低的场合；GPRS DTU方式适合于通讯频率大，数据延迟小，数据量大，安全性要求高的场合。

It is said that the Five Mountains comes back not looking at a mountain , think that I grow up stepping off that one piece of small basin hometown, think that I Deng Shang "am able to pawn a mausoleum extremely " Tarzan,"as soon as take numerous small mountain" Mount Huangshan into self's arms, still have that "nine eighteen wrong curved " Wu Yi Shan City , answer that Weng Shan , mountain be still that mountain going beyond the limit looking at after one's death again, being only this moment mountain already looks like one advanced old monarch attaining the wisdom, His posture trying to be higher than God cannot but let me sigh with regret , lament on my insignificancy with sighs , lament on my ignorance with sighs.

有道是五岳归来不看山，当我长大走出家乡那一片小盆地，当我登上"会当陵绝顶"的泰山，"一揽众山小"的黄山，还有那"九曲十八弯"的武夷山，回过头再看身后的那座翁山，山还是那山，只是这时候的山已经像是一位得道高深的老君，他那欲与天公试比高的姿势不能不让我慨叹，慨叹我的渺小，慨叹我的无知。

This invention relates to a DC linear motor digital controller including a central processor circuit, a data memory, a program memory, an A/D conversion circuit, a D/A conversion circuit, a linear shift orthogonal code pulse signal circuit, a signal isolation circuit, among which, the center processor circuit is composed of a special DSP chip controlled by the motor, a complicated programmable logic device CPLD combining with a peripheral expanding circuit, said digital controller fully utilizes the motor to control the special DSP chip to integral DSP kernel CZXLP and the rich external circuit in a single chip to make up of a digital controller for controlling high frequency response DC linear motor with small volume, low dissipation and high reliability.

高频响直流直线电机数字控制器，属于电机自动控制技术领域，目的在于获得快速、高精度往返运动的控制效果，实现高频响直流直线电机的精密位置跟踪控制功能。本发明包括中央处理器电路，数据存储器，程序存储器，A/D转换电路，D/A转换电路，直线位移正交编码脉冲信号电路，信号隔离电路；中央处理器电路由一个电机控制专用DSP芯片，复杂可编程逻辑器件CPLD，结合外围扩展电路组成。该数字控制器充分利用电机控制专用DSP芯片将高性能DSP核C2xLP和丰富的功能外设电路集成在单个芯片上这一特点，构成了一个体积小、功耗低、可靠性高和功能比较齐全的高频响直流直线电机控制用的数字控制器，使系统的整体成本大大降低。

Wavelet transform filter processing, including low-pass, high-wavelet and a number of the inverse transformation operation.

用小波变换实现滤波处理，包括低通、高通及若干层小波变换的逆变换操作。

This method avoids the high order matrix inverse operation in batch process of LSE,providing a more effective estimation method.

避免了最小二乘系统辨识批处理方法中的高阶矩阵求逆及最小二乘系统辨识递推算法中的循环修正，提高了计算的效率。

A sufficient and necessary condition of an isothermal surface being a minimal surface is obtained.

除平面外没有其它二次多项式极小曲面，Enneper曲面是目前微分几何文献中唯一出现的三次参数多项式极小曲面，还没有出现高次多项式极小曲面的例子。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。