OrCAD中批量替换和修改网络名最高效的方法
上传时间： 2016-11-08
上传用户：wuchengbai
软件：软件是能够完成预定功能和性能的可执行的计算机程序和使程序正常执行所需要的数据，加上描述程序的操作和使用的文档。
上传时间： 2016-12-05
上传用户：hahah
A major societal challenge for the decades to come will be the delivery of effective medical services while at the same time curbing the growing cost of healthcare. It is expected that new concepts-particularly electronically assisted healthcare will provide an answer. This will include new devices, new medical services as well as networking. On the device side, impressive innovation has been made possible by micro- and nanoelectronics or CMOS Integrated Circuits. Even higher accuracy and smaller form factor combined with reduced cost and increased convenience of use are enabled by incorporation of CMOS IC design in the realization of biomedical systems. The compact hearing aid devices and current pacemakers are good examples of how CMOS ICs bring about these new functionalities and services in the medical field. Apart from these existing applications, many researchers are trying to develop new bio-medical solutions such as Artificial Retina, Deep Brain Stimulation, and Wearable Healthcare Systems. These are possible by combining the recent advances of bio-medical technology with low power CMOS IC technology.
上传时间： 2017-02-06
上传用户：linyj
The AP2406 is a 1.5Mhz constant frequency, slope compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell lithium-Ion (Li+) battery. The AP2406 can supply 600mA of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The AP2406 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. Idle mode operation at light loads provides very low output ripple voltage for noise sensitive applications. The AP2406 is offered in a low profile (1mm) 5-pin, thin SOT package, and is available in an adjustable version and fixed output voltage of 1.2V, 1.5V and 1.8V
上传时间： 2017-02-23
上传用户：w124141
1. 在MATLAB中，分别对灰度图、真彩色图、索引彩色图，实现图像的读入、显示等功能。 2. 将真彩色图、索引彩色图转为灰度图，并保存到硬盘自己的文件夹下。 3. 如果按下面的操作读入索引彩色图像，请说明X、MAP两个矩阵中是如何保留图像中RGB彩色信息的。 [X,MAP]=imread(‘文件名’,‘格式’)； 答：代码中X为读出的图像数据，MAP为颜色表数据（或称调色板，亦即颜色索引矩阵，对灰度图像和RGB彩色图像，该MAP为空矩阵）。一幅像素为m*n的RGB彩色图像（m,n为正整数，分别表示图像的高度和宽度），可以用m*n*3的矩阵来形容，3层矩阵中的每一个元素对应红、绿、蓝的数值，红绿蓝是三原色，可以组合出所有的颜色。 4，（提高题）实现真彩色图像的读入，请分R、G、B三个通道分别显示该图像的红、绿、蓝色图像。
上传时间： 2017-05-10
上传用户：mouroutao
中国联合通信公司 短消息网关系统接口协议 (SGIP)
上传时间： 2017-11-22
上传用户：wlh888
Lithium–sulfur (Li–S) batteries with high energy density and long cycle life are considered to be one of the most promising next-generation energy-storage systems beyond routine lithium-ion batteries. Various approaches have been proposed to break down technical barriers in Li–S battery systems. The use of nanostructured metal oxides and sulfides for high sulfur utilization and long life span of Li–S batteries is reviewed here. The relationships between the intrinsic properties of metal oxide/sulfide hosts and electrochemical performances of Li–S batteries are discussed. Nanostructured metal oxides/ sulfides hosts used in solid sulfur cathodes, separators/interlayers, lithium- metal-anode protection, and lithium polysulfides batteries are discussed respectively. Prospects for the future developments of Li–S batteries with nanostructured metal oxides/sulfides are also discussed.
上传时间： 2017-11-23
上传用户：653357637
1.学会二叉树这一数据结构的用法，掌握二叉树的存储结构，包括二叉树顺序存储结构和链式存储结构。 2.熟练掌握二叉树与广义表之间的相互转换方法。 3.熟练掌握二叉树的先序、中序、后序，递归与非递归遍历算法。 4.学会二叉树线索化方法，并掌握线索二叉树的存储结构。 5.熟练掌握线索二叉树的先序、中序、后序的遍历算法。
标签： 树
上传时间： 2017-12-03
上传用户：mxs1234
基于语音短时对数谱的最小均方误差(MMSE-LSA)算法是在MMSE算法的基础之上发展起来的，由于其引入了人耳响度-幅度谱特性，因此能够获得比MMSE算法更好的语音听觉质量。
上传时间： 2017-12-15
上传用户：zmhylez
The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capability. The input signal is subjected to LPC analysis and the prediction residual is separated into a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW) components. The SEW magnitude component is quantized using a hierarchical predictive vector quantization approach. The REW magnitude is quantized using a gain and a sub-band based shape. SEW and REW phases are derived at the decoder using a phase model, based on a transmitted measure of voice periodicity. The spectral (LSP) parameters are quantized using a combination of scalar and vector quantizers. The 4.0 kbits/s coder has an algorithmic delay of 60 ms and an estimated floating point complexity of 21.5 MIPS. The performance of this coder has been evaluated using in-house MOS tests under various conditions such as background noise. channel errors, self-tandem. and DTX mode of operation, and has been shown to be statistically equivalent to ITU-T (3.729 8 kbps codec across all conditions tested.
标签： frequency-domain interpolation performance Design kbit_s speech coder based and of
上传时间： 2018-04-08
上传用户：kilohorse
