S3C2410的第十六部分

n阶魔方阵，就是把1-n2个连续的正整数填到一个m*n的方阵中，使得每一列的和，每一行的和，以及两个对角线的和都相等。本程序只填奇数阶的魔方阵-n-order magic square, that is, the 1-n2 consecutive filled to a positive integer m* n square in which each column and each row and, as well as two diagonal and are equal. This procedure只填odd order magic squares

普通调幅电路am-Ordinary amplitude modulation circuit am

电信知识基础教材-Telecom knowledge base of teaching materials

dds->9954的pcb供大家参考,这个扳子我调通了的可以放心开办-dds-

Car Sales Simulation Program with QT (ver 4.5.3, using MS Visual Studio 2008)

java 实现的瀑布效果-银河落九天的效果,效果生动-achieve the waterfalls- Galaxy charged nine effect, the effect vivid

加强肋 理想的设计 为了克服壁厚大可能引起的问题，使用是一种可减少壁厚并能增加刚性的有效方法。 一般来说，部件的刚性可用以下方法增强 增加壁厚； 增大弹性模量（如加大增强纤维的含量）； 设计中考虑。 如果设计用的材料不能满足所需刚性，则应选择具有更大弹性模量的材料。简单的方法是增加塑料中增强纤维的含量。但是，在特定壁厚下，这种方法仅能使刚性呈线性增长。更有效的方法是使用经过优化设计的。由于惯性力矩增大，部件的刚性便会增大。在优化的尺寸时，不但要考虑工程设计应当考虑的问题，还应考虑与生产和外观有关的技术问题。 优化的尺寸 大的惯性力矩可很容易地通过设置又厚又高的来实现。但是对热塑性工程塑料，这种方法常会产生制品表面凹痕、内部空洞和翘曲等问题。而且，如果的高度过高，在负荷下结构将有可能膨胀。出于这种考虑，必须在合理比例内保持的尺寸（见图1）。-stiffened ideal for the design of large thickness overcome the problems that may arise. use of a reduced wall thickness and rigidity can increase the effective method. In general, the rigid parts of the following methods can be used to enhance increased thickness; increased elastic modulus (such as increasing fiber content); Design considerations. If the design of the materials used can not meet the rigid requirements, they should have a greater choice of elastic modulus of the material. The simple way out is to increase plastics reinforced fiber content. However, in s

构造一组输入为白噪声加三个频率非常接近的正弦波，其信噪比为10dB，观测长度为256。试分别用普通AR谱估计和采用功率噪声抵消算法的AR谱估计估计这组信号的频率，并比较结果。-constructed a group of white noise input plus three very close to the frequency sine wave, the signal-to-noise ratio of 10dB. Observing length of 256. Were used to test the general AR spectral estimation using power and noise canceling algorithm for the estimation of AR spectrum estimation of this group of signal frequency, and the results of the comparison.

105个c语言的源程序演示各种c语言中非常有用的编程技巧　并可供实际项目中参考使用-105 c language source code presentation of various c language programming skill is very useful and practical items for use and reference