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Domestic entrance, adult college entrance examination, self-examination and the examination of various institutions, some criminal elements to use cell phones to cheat; in the test set MDPB-04-based mobile phone signal isolator, can be effective in blocking the process of examination of the types of mobile phone signal transmission, because cell phone signals within the scope of the test was cut off, any test can not answer the phone, view from outside the examination room phones, text messages; can not make calls, send text messages; guarantee test the order of category 2 intermediate and high school students to use cell phone text messages during school hours in the classroom hair set edsun-2008-type devices to block mobile phone signals, through the mobile phone signal blocking devices to block mobile phone signals, the mobile phone so that students can not receive text messages, send text messages to ensure that students can concentrate on in the classroom full time in a limited guarantee that the quality of teaching.

国内高考、成人高考、自学考试及各类大专院校在考试过程中，一些不法分子利用手机作弊；在考场中设置MDPB-04型手机信号隔离器，可在考试过程中有效阻断各种类型的手机信号的传输，由于手机信号在考场范围之内被隔断，考场内的任何手机都无法接听、查看来自考场以外的电话、短信息；也无法拨打电话、发送短信息；保证考场秩序2类中级、高级中学学生利用手机在上课时间乱发短信在教室中设置edsun-2008型手机信号阻断器，通过手机信号阻断器的阻断手机信号的功能，使学生的手机无法接收短信、发送短信，保证学生能够在课堂上集中精力，充分在有限的时间内保证教学质量。

Domestic entrance, adult college entrance examination, self-examination and the examination of various institutions, some criminal elements to use cell phones to cheat; in the test set MDPB-04-based mobile phone signal isolator, can be effective in blocking the process of examination of the types of mobile phone signal transmission, because cell phone signals wit你好n the scope of the test was cut off, any test can not answer the phone, view from outside the examination room phones, text messages; can not make calls, send text messages; guarantee test the order of category 2 intermediate and 你好gh school students to use cell phone text messages during school hours in the classroom hair set edsun-2010-type devices to block mobile phone signals, through the mobile phone signal blocking devices to block mobile phone signals, the mobile phone so that students can not receive text messages, send text messages to ensure that students can concentrate on in the classroom full time in a limited guarantee that the quality of teac你好ng.

国内高考、成人高考、自学考试及各类大专院校在考试过程当中，一些非法分子利用手机做弊；在科场中设置MDPB-04型手机信号断绝器，可在考试过程当中有用阻断各类类型的手机信号的传道输送，因为手机信号在科场规模以内被隔绝，科场内的不论什么手机都无法接听、查看来自科场以外的电话、短信息；也无法拨打电话、发送短信息；包管科场秩序2类中级、高级中学学生利用手机在上学时间乱发短信在教室中设置edsun-2010型手机信号阻断器，路程经过过程手机信号阻断器的阻断手机信号的功效，使学生的手机无法吸收短信、发送短信，包管学生能够在课堂上集中精力，充分在有限的时间内包管讲授质量。

This dissertation has studied various architectures of Sigma-Delta modulator systematically. According to power dissipation, stability and circuit implementation, a 2-2 cascade architecture is introduced. Oversampling ratio is 32. The attenuation factors of each integrator and interstage coefficients are obtained from behavioral simulation.

本论文系统地研究了∑A调制器的各种体系结构，根据功耗、稳定性以及电路实现等方面综合考虑，∑A调制器采用级联2—2结构，过采样比为32，并通过行为级仿真确定了积分器的增益衰减因子及级间耦合系数。

The layered video decoding system comprises a base layer decoder for receiving and decoding a base layer video stream; and an enhancement layer decoder for receiving an enhancement layer video stream and the decoded base layer stream, and generating a decoded enhanced video output, wherein the enhancement layer decoder includes: a plurality of inverse discrete cosine transform /IDCT modules; and a selection system for selecting one of the IDCT modules.

分层视频译码系统包括：基本层译码器，用于接收和译码基本层视频流；和增强层译码器，用于接收增强层视频流和所译码的基本层流，并生成译码的增强的视频输出，其中该增强层译码器包括：多个反离散余弦变换模块；和用于选择其中一个IDCT模块的选择系统。

In high-impedance current-input inverting configurations, where a length of shielded wire is used to guard the lead from the current source to the amplifier's inverting input, the guard should either be driven by a buffer at the same potential as the non-inverting input, or be tied directly to the non-inverting input, with a second outer shield connected to the signal's reference point.

如果将运放接成反相放大器的形式，并且在信号源与运放反相端之间用一段带有屏蔽层的导线来充当的防护罩，那么对防护罩的处理有两种选择：要么用一个缓冲跟随器来驱动，跟随器输出端与运放同相端电位相等，而且除跟随器外，防护罩不与其他点接触；要么将防护罩直接接到运放的同相端，然后在其外面加一个屏蔽层，并且将屏蔽层连接到信号的参考电位。

This paper firstly reports three kinds of technique of text automatic category based on statistic ( k nearest neighbor ,support vector machine and nave bayes),and analyses their advantages and disadvantages.

本文首先介绍三种基于统计的自动分类技术(k近邻分类器、支持向量机分类器和朴素贝叶斯分类器)，剖析了基于统计的自动分类的优势及不足。

This paper firstly reports three kinds of technique of text automatic category based on statistic (k nearest neighbor, support vector machine and nave bayes), and analyses their advantages and disadvantages.

本文首先介绍三种基於统计的自动分类技术（k近邻分类器、支持向量机分类器和朴素贝叶斯分类器），剖析了基於统计的自动分类的优势及不足。

Using sensor output data as the compensator input, and the sensor input data as the compensator output, the compensator is designed based on the nonlinear dynamic Laguerre function.

用传感器的输出数据作为补偿器的输入，传感器的输入数据作为补偿器的输出，进行基于Laguerre函数的非线性动态补偿器的设计研究。

In order to solve the nonlinear problem of lampers, a pure-shear magneto-rtheological damper was designed. In view of its non-linear characteristics, it was proposed to make use of the radial basis function neural networks non-linear mapping capabilities and establish MR dampers inverse model to solve its problem of non-linear.

为了解决阻尼器的非线性问题，设计了一种纯剪切型磁流变阻尼器，并针对其非线性特性，提出了利用径向基函数神经网络的非线性映射能力，以建立磁流变阻尼器的逆模型。

The result indicates that the output power oscillates and weakens along with increasing input power,and its oscillation period depends on the distance between the medium and beam focal point.Limiter′s limiting ability will decrease if waist size of the incident Gaussian beam and the aperture size increase.With a fixed input power scope,medium′s best limiting position will move towards the focal point if waist size of Gaussian beam and the aperture size increase,but the best limiting position will change a lot with different input power scopes.

结果表明：限幅器的出射功率随入射功率的增加衰减振荡，其振荡周期取决于介质相对于光束焦点的位置；限幅器的限幅能力随入射光束腰半径和光阑孔径的变大而减弱；入射功率范围固定，入射光束腰半径和光阑孔径增大时，介质的最佳限幅位置向入射光束的焦点靠近，但是在某些入射功率范围内会存在多个最佳限幅位置；光限幅器的箝位输出功率随光阑线性透过率的增加存在线性增加和非线性增加两个不同区域，实际应用中应在线性增加区域确定光阑孔径的大小。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。