查询词典 input characteristics

Proceed from the principle of neural networks, the mechanism of mapping between input and output of neural networks was analyzed, and the BP algorithm for training the thresholds of neurons was derived. Based on the study to the distinguishability of input of networks, the effect of neural networks to distinguish-ability of characteristics was studied, and the optimizations of the structure of networks, learning rate, impulse factor, thresholds of neurons and initial weight of networks were completed. Through the experiments under fixed cutting regime and alternative cutting regime, the methods based on neural networks for tool wear monitoring were studied.

本文从神经网络的基本原理出发，研究了神经网络输入输出的映射机理，探讨了神经网络处理方法具有自适应性的原因；推导了神经元阈值学习BP算法；在研究网络输入特征可分性准则和特征敏感性准则的基础上，探讨了神经网络对特征可分性的作用；完成对网络结构参数、网络学习率和冲量因子、神经元阈值以及网络初始权值等参数的优化；并在固定切削用量和变切削用量条件下，对基于神经网络的刀具磨损检测方法进行了实验研究。

A series of theoretical and experimental studies on the microstrip patch antennas with dielectric superstrates is carried out systematically. Firstly, a comprehensive survey of the microstrip antenna technology and its theories are presented. Then, two analysis techniques, named as the spectral domain Green's function method and the spectral domain integral equation method are developed. The SDGF method is a simplified analysis technique, which takes advantage of the spectral domain immittance approach to find the dyadic Green's function for the stratified media, and obtains the complete closed-form formulas for radiation patterns, directivity, efficiency, gain etc. Some interesting calculated results are presented. The SDIE method is capable of determining resonant frequency, radiation characteristics, input impedance etc, for the covered microstrip patch antennas. Comparing with other full-wave analyses it reduced computation and mathematical labour remarkably. The singularities near the pole location of the surface-wave modes and the difficulty of the integral computation over infinite range of oscillating integrands are dealt with actively and documented well. Results predicted by the SDIE method agree extremely well with our experimental results for resonant frequencies of various superstrates. The superstrate effects on impedance and radiation characteristics also have been investigated experimentally so that the gap due to lack of measured data and computed results for multi-layered superstrate has been filled to some degrees and two useful observations have been achieved for weakening the resonant frequency shift and optimizing the microstrip antenna gain. As a meaningful application, the design and analysis of a 4×4 patch array are introduced.

实用微带天线普遍加介质覆盖层来防护热，物理损伤和环境影响，也可能在飞行或严酷气候条件下自然形成覆盖层本论文对带介质覆盖层的微带贴片天线系统地作了一系列理论和实验研究首先，对微带天线技术和理论作了全面的综述然后，发展了两种分析方法，称为谱域格林函数法和谱域积分方程法SDGF法是一种简化的分析技术，它利用谱域导抗法来求得分层媒质的并矢格林函数，并得出方向图、方向性系数、增益等参数的完整的闭式公式，给出了一些令人感兴趣的计算结果SDIE法能确定介质覆盖微带天线的谐振频率、辐射特性和输入阻抗等与其它全波分析方法相比，它明显减小了计算量和数学工作量已有效地处理了表面波模极点附近的奇异性和对振荡的被积函数的无限区间积分计算的困难对于不同覆盖层情况下的谐振频率，由SDIE法所预示的结果与我们的实验结果吻合得很好对于覆盖层对阻抗和辐射特性的影响也已作了实验研究这在某种程度上填补了缺少实验数据和计算结果之间的间隙，并得出了缓解谐振频率偏移和优化天线增益的两点有用的结论作为有意义的应用，介绍了一个4×4元矩形贴片天线阵的设计和分析。

Degree and form of intensive management of flue-cured tobacco production in Hunan province were discussed on the basis of analyzing monomial proportion between input and output, proportion and difference of living labor, materialized labor and technology in total supplementary input, and final economic benefits as well as characteristics of tobacco products.

根据湖南省烤烟生产集约经营中单位种植面积上的投入产出量，活劳动、物化劳动和技术三者的单项投入在总的追加投入中所占比重和相互间配比的差异，以及最终形成的经济效益的高低，探讨了湖南省烤烟生产集约经营的评价指标。

It is found that the change of the frequency characteristics of chaotic system occurs mainly at the frequency band of the chaotic system, in which the input signal exists. The amplitude of the input signal doesn't influence the distortion of the output signal when masking signal is extracted by Oppenheim's chaotic masking.

研究发现，混沌系统频率特性的变化主要发生在输入信号的频率位於混沌系统频带内的情况下；输入信号幅度的大小，不影响输出信号的失真。

Because the gesture recognition is based on the plane characteristics, so it can only send the input information based on the plane projection of the hand, this constrain the operation in the 3D environment and limit the users input information.

然而，现阶段的手势识别都是基于平面特征，用户只能根据手的平面投影作为识别输入接口进行操作，这大大限制了用户在三维空间信息输入的可操作性。

The first type is the scanner signature files that provides a Kodak, Agfa or Fuji company's standard quadrochromatic and the quadrochromatic standard data, use of scanner input these quadrochromatic, scan data and the difference between the standard quadrochromatic data reflects the scanner's properties; the second is the display characteristics of the file, which provides software that you can detect your display's color temperature, and then generate a color swatch on the screen, these swatches of information reflects the characteristics of the display; and the third being the print device signature files, it also provides a suite of software, the software in a computer-generated that contains hundreds of color swatch in the graphic, and then the graphic output on the output device, if it is a printer, printing press with respect to direct proof in respect of the first film, proofing and printing, the image on the output measure that is a reflection of the print device's characteristics file information.

第一类是扫描仪特征文件，它供应了柯达、爱克发、富士公司的尺度草稿及这些草稿的尺度数据，诳骗扫描仪不输不入这些草稿，扫描数据与尺度草稿数据的差值反响了扫描仪的共性；第二类是表现器的特征文件，它供应了一些软件，可测不入表现器的色温，然后在屏幕上天生一色块，这些色块新闻反响不入了表现器的特征；第不一类为打印摆设的特征文件，它也供应了一套软件，该软件在计算机洋天生一个含有数百个色块的图形，然后不兵图形在输不入摆设上输不入，如果是打印机不离间接打样，印刷机不离不后不入胶片、打样再印刷，差这些输不入的图像举行丈度即反响不入打印摆设的特征文件新闻。

A class of fast-scale bifurcations appearing around the maximum value of the input voltage is discovered for the first time by experiment. Then the influence of the fast-scale bifurcations on the performance of the PFC converters is discussed. Whether the fast-scale bifurcations will appear and how wide the bifurcation region depend on the characteristics of the current loop output. Therefore, the main factors that affect the current loop output are analyzed, including the current loop parameters, inductance, and root-mean-square value of the input voltage.

通过实验，该文首次发现了一类在输入电压最大值附近发生的快时标分岔；详细讨论了快时标分岔对PFC变换器性能的影响；由于电流环输出的特点决定了变换器是否会出现快时标分岔以及分岔区域的大小，该文分析了影响电流环输出的主要因素，包括电流环参数、电感值和输入电压有效值。

In this paper, according to the basic idea of digital human body, acupuncture is seen as a kind of information input, and the change of brain activities after acupuncturing is taken as a response, to study the relationships between the input variables and output variables, and characteristics of brain activities.

本论文根据数字人体的基本思想，把针刺看作为是一种信息输入，把脑部在针刺后的活动变化看作为针刺输入响应，研究人脑状态变量与输入变量、时间的关系和人脑的时间行为。

The digital simulation of thedynamic processes under step load input and supply oil pressure fluctuation were carried on by MATLAB. Analysis of the dynamic characteristics was done with the changes of the supply pressure, load, structural parameters of spherical hydrostatic bearing and the effective bulk modulus of oil. The conclusions show that structural parameters of the spherical bearing and the effect bulk modulus of oil have significant influence to dynamic characteristics, but the elasticity deformation of interior supporting collet has very small influences on the output response characteristics of the suspension system. The collets deformation can be neglected on the project.

在此基础上，建立了考虑内支撑筒的弹性变形与否时悬浮系统的数学模型，同时，建立了线性化的仿真模型，利用MATLAB对阶跃负载输入和油源压力脉动输入下的系统进行动态过程的数值仿真，结果表明球面副的结构参数，油液的有效体积弹性模数对系统的响应特性有明显的影响，而内支撑筒的弹性变形对悬浮系统的响应特性的影响很小，在工程上可以忽略其弹性变形。

It was shown that for small input signals, operation is limit- ed in so small a portion of the characteristic that much smaller than usual grid bias may be used to obtain higher trangconductance, and consequently higher gain; whereas for large input signals,non-linearity of the characteristics limits the maximum output obtainable.

证明要得到没有畸变的调幅，必须使阳极电压、屏栅极电压、栅偏压和栅极激励用上压同时加以调制。所要求的调制方式都是很近于同比例的。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。