因数

ABSTRACT Based on theoretical analysis of axial compression of ring-shape specimen between two flat dies by an upper-bound technique,it is possible to carry out the measurement of both the friction coefficient of lubricant and the basic flow stress of the ring material under particular temperature and strain rate.

摘 要 根据圆环压缩的连续速度场上限定理的理论分析，通过圆环试样压缩前后的几何尺寸的变化，能测量润滑剂的摩擦因数和圆环材料的流变应力。

By metaphorically invoking the photographic terminology in the spirit of Bergsonian / Deleuzian time-movement interpretation as inspiration, the exhibition Timelapse in which a dozen artists from both Switzerland and China will participate, attempts to examine the fundamental constituent of digital media: the concept of time and its embodiment in space, its evocation of passage and memory, its movement of differentiation and its state of representation in diverse formal grammars to reveal the social implications of the fast in the disguise of the slow, the multiplicity in temporality and disparity in spatiality, both psychologically and geographically, stirring up a desire to scrutinize the nuances and ramifications in regards to the construct of cultural being in the disparate framework of time in distance and space in locality and the potential collapse of such time-space duality.

本次展览以柏格森以及德卢兹（ Deleuze，均为法国哲学家）有关时间－运动的解释为契机，含蓄地缓引"延时"这一摄影术语，在瑞士和中国两国艺术家的参与中，试图检验数字媒体的根本构成因数，及时间的概念以及其在空间中的体现，其对于过程和记忆的启示，其运动所产生的差异，以及其在运用形式语言时所呈现的不同表象，从而揭示被缓慢所遮掩的亟速之社会内蕴，其在时空中之心理与地理间的多样化和差异性，激起我们对于细察在不同的时空概念的框架下文化的构建，以及对于这种时空二元性之崩溃的可能性的欲念。

This will help to overcome problems of apparent bimodality caused by the presence of many below-detection-limit values in a data set.

这将有助于克服因数据组中有大量低于捡出限的数值而出双模态性的问题。

With internationally latest studies, the paper also proposes some biquadrate filters which are capable to perform the functions of second-order low pass、 high pass、 band pass、 band stop、 all pass filtering by selecting one of the three inputs or their proper combinations from the same configuration, furthermore whose natural frequency and the quality factor can be tuned independently. Then a continuous-time biquadratic filter using CCCII is proposed, which can be used in hearing aids and in other analog signal processing applications. Lastly a current mode and a voltage mode novel n-order filters of multifunction are presented. Not all both of the n-order filters are electronic tunable,but also they are integrated conveniently and compatible with VLSI technology.

尽量的全面归纳以电流控制传送器为有源器件的有源网络模拟电路、模拟信号处理电路，借鉴国内外最新研究成果，提出两种基于CCCⅡ的双二阶滤波器，这些电路在不需要改变电路结构的情况下，能同时实现低通、高通、带通、带阻或全通多种滤波功能，并且滤波器的特征频率ω_0和品质因数Q可实现独立调节；其中一种基于CCCⅡ的双二阶滤波器，首次提出将CCCⅡ应用于可编程助听器领域；最后设计了两种高阶滤波器，电压模式和电流模式各一种，这两种滤波电路均能实现多种滤波功能，能实现滤波器参数的电调谐，具有易于集成等优点。

In comparison with the experimental results of the two types of friction materials, we find that the intensity of heat fading is greatly related to the component of brake lining.

0引言摩擦系数的稳定性直接影响制动器工作的稳定性和驾车的安全性，其中，热稳定性是其中一项重要的指标，它是指制动衬片在制动过程中所表现出的摩擦因数随温度而变化的特性，主要反映在制动器的热衰退性上。

A new digital method based on FPGA was introduced in this paper to amplify the quality factor of micro cantilever.

本文提出一种基于FPGA的数字式提高微悬臂梁品质因数的方法。

The conventional swept frequency method for measuring quality factor of a cavity resonator is limited in practical use.

传统的谐振腔品质因数扫频测量方法在实际测量时存在一定的限制。

Quality factor ; cavity resonator ; microwave measurement ; bandwidth of half power

品质因数；谐振腔；微波测量；半功率带宽

Therefore,based on microwave highQ cavity resonator,a new technique of calculating the quality factor through theoretical derivation is presented,which allows flexibility in choice of measurement point.This method solves the problem of coupling system influence,which can cause larger error in measuring.

为此，针对微波高Q谐振腔，给出了一种测量其品质因数的新方法，该方法可以根据实测的谐振曲线灵活选取测量点，有效解决了传统方法中由于谐振腔受外电路影响导致测量误差较大的问题。

Cobia are primarily sought by sight casting small Chartreuse jigs to migrating fish, or to fish following turtles or manta rays.

因数主要要求见铸造小黄绿色的迁移夹具捕鱼，或鱼后海龟或 manta 照射。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。