倍数的

this paper introduces a lossless detected circuit system.firstly,system gathers slender infrared signal with transducer,then amplifies them with low noise.through voltage comparator circuit,transforming simulation objection signals to digital signals.finally,transforming transport landscape orientation and portrait to single chip processing.in design of pcb,the amplifying of quadruplet signal,filter,voltage comparator decree and and logic function are manufactured in one board.if the diameter of workpiece is long,it can add multiple the number of transducer of four,to wide its range of practice,disposing circuit only need one module.

摘 要：介绍了一种无损检测的电路系统。系统首先利用传感器采集到微弱的缺陷信号，再将缺陷信号进行低噪声放大，然后通过电压比较判决电路将模拟缺陷信号变换成数字信号，最终将横、纵两路的输出信号送至单片机处理。在pcb设计中，将四路信号的放大、滤波、电压判决以及与逻辑功能做在一块板上，若被检测工件的直径较大，可以将传感器的个数以四的倍数增加，处理电路只需增加一个模块。

precise calculating formula is derivated to determine magnification ratio of voltage,input resistance and output resistance in amplifying circuits based on th feedback circuit model with cascade voltage.with th new calculating methods put forward by the author,it is possible to solve the problems in terms of calculation in amplifying circuits,the key problem being low level of exactness.the research shows the influence of components′ parameters of basic amplifying circuits and feedback circuits on feedback amplifying circuits.the results of the research may contribute to design amplifying circuits and electronic instrument with higher performance,due to the simpler calculation in the design of feedback circuit with cascade voltage.

摘 要：在建立电压串联反馈电路模型基础上，推导出放大电路中的电压放大倍数、输入电阻、输出电阻的精确计算公式。提出新的计算方法，从而解决了放大电路计算不方便，精确度不高、准确性不够的问题。同时进一步揭示了基本放大电路、反馈电路元件参数对反馈放大电路的影响关系。为设计出高性能放大电路及电子设备指明了方向，更加方便于电压串联反馈电路的计算。

Then according to the good decreasing property of Chebyshev expantion, we prove the better characteristics of nonuniform sampling DCT in compression ratio and compression quality comparing with uniform sampling DCT.

然后根据Chebyshev展开式良好的下降特性，证明了文章提出的非均匀取样的DCT变换与传统的均匀取样DCT变换相比在信号的压缩倍数和压缩质量方面所具有的良好特性。

Under the assumption of a sech〓 input pulse, TOD is significant only for pulse widths less than 10 femtoseconds resulting in pulse broadening as well as distinct amplitude oscillations on the leading edge. TOD is positively correlated with its length. The calculations presented here allow for the determination of the maximum thickness of crystal that may be used in the autocorrelation system.

结果表明当脉宽接近或小于10fs时，脉冲才有明显的展宽效应，脉冲的展宽倍数与晶体的长度成递增关系，计算同时给出能基本消除三阶色散的展宽效应的倍频晶体的最大厚度，为进一步实验研究提供了依据。

Methods］ MTT assay was employed to test the lethal concentration 50 (IC50) of sensitive germline (SK-OV-3) and ovarian cancer cell subline induced by ADR (SK-OV-3/adr) treated by 4 drugs, resistance index and reverse multiple were calculated. The changes of drug content were observed by fluorescence microscope, the intracellular accumulation of ADR was evaluated by fluorospectrophotometry, the changes of mdr 1/P-gp resistance were observed respectively by RT-PCR and Western blot.

方法］MTT法检测药物对敏感细胞株（SK-OV-3）和诱导的耐药细胞株（SK-OV-3/adr）的半数致死浓度（IC50），计算耐药指数和加逆转剂后的逆转倍数，荧光显微镜观察不同时间细胞内的药物含量变化，荧光分光光度法测定细胞内ADR的含量，RT-PCR和Western blot法检测细胞耐药前后mdr1/P-gp的变化。

Film particle drug nitiol is seen under a microscope to see the result, by the film, the image can be used for many amplificatory, as in a certain distance appears does not necessarily see a noticeable particle, which is the traditional film is currently about 2 ~ 3 megapixel digital camera.

胶卷药膜边的粒子是给在显微镜下才能看到的微粒，因此，由胶卷拍不入的影像，可以息矮倍数不扩不小，如在必定的间隔表不面看，也不必定看到有澄辉的粒子，这一不面侧是古板胶卷远胜于不幼远不小抵2~3百万像素的数码相机。

By sorting out and summarizing the theories of resource efficiency revolution to make systematical epagogic elaboration on overseas references of 4 factor revolution,10 factor revolution and resource efficiency indexes,and an overview on reference of resource efficiency by domestic scholars and scientific econometric analyses on emergy theories.

在总结前人研究成果的基础上，定义了资源效率革命的概念，提出了资源效率革命具有目标性、根本性、革命性和倍数性的特征；分析了资源效率革命的理论基础是可持续发展理论、循环经济理论，提出循环经济的核心是资源效率革命的观点并进行了深刻剖析。

NEWN released full year guidance of $1.23 per share for 2010, which is only 6.5 times earnings, whereas its Nasdaq comparables such asAdvanced Battery Technologies Incorporated (ABAT and Hong Kong Highpower Technology trade on P/E multiples in the mid-teens.

生物之星药业有限公司已发出的净所得为1800-2000万美的预期这是向前的P / E约5 - 6倍的比例结果在低电流范围4元的价格。这种低倍数尽管该公司的收入和增长57％，纯收入在 2009年，预计到2010年的近一倍。

Cell lines were co-tranfected with bi-plasmids and cultured at 1% O〓 condition, luciferase assay demonstrated that all of the expression systems with different domains could be hypoxia-activated. GAL-CAD achieved more than 100-fold induction in A549 cell and more than 40-fold in HepG2; expression level of the system markedly increased after addition of glycin arm, almost 10-fold enhancement in HepG2 cell. Because basic expression also increased, the induction fold by hypoxia decreased.

双质粒共转染不同细胞株后，在1％O〓环境下培养24h，荧光素酶活性检测结果提示含不同结构域的表达系统均有受缺氧激活的能力，其中GAL-CAD在A549中获得100倍以上的诱导，在HepG2中获得40倍以上的诱导；加入甘氨酸臂后该表达系统的转录活性大为增强，在HepG2细胞中增强了10倍以上，但是由于基础表达也有所增加，受缺氧诱导的倍数下降。

The results indicated that apple juice mingled with a certain amount of pear juice was characterized by great changes in pH, 295 nm absorbance, total sugar/reduced sugar and optical rotation, and that these 4 indexes can be used .

从相同稀释倍数下的梨汁以不同体积掺入苹果汁后的pH变化，295nm处的吸光度的变化，总糖和还原糖的变化，旋光度的变化以及糖的薄层层析和感官评定等16个方面进行了探讨。

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