ifix读取Excel报表

本文讨论了iBATIS SQL Map最重要的特性。使用SQL Map，能够大大减少访问关系数据库的代码。SQL Map使用简单的XML配置文件将Java Bean映射成SQL语句，对比其他的数据库持续层和ORM框架（如JDO的实现，Hibernate等），SQL Map最大的优点在于它简单易学。要使用SQL Map，只要熟悉Java Bean，XML和SQL，就能使您充分发挥SQL语句的能力。(This article discusses the iBATIS SQL Map of the most important features. Using the SQL Map, can greatly reduce the code to access a relational database. SQL Map using a simple XML configuration file will be mapped into a SQL statement, Java Bean, compared to other databases continuous layer and ORM frameworks (such as JDO implementation, Hibernate, etc.), SQL Map of the biggest advantages is that it is easy to learn. To use the SQL Map, as long as the familiar with the Java Bean, XML, and SQL, will enable you to give full play to the capacity of SQL statements.)

说明：  axure图表元件库，用作设计axure原型，可调整数据(Axure Chart Component Library)

一种新的变步长LMS自适应滤波算法，本文通过建立步长因子L与误差信号之间的非线性函数关系,提出了一种新的变步长LMS(Least Mean Square)算法.该算法具有初始阶段和未知系统时变阶段步长自动增大而稳态时步长很小的特点,且克服了S函 数变步长LMS算法(简称SVSLMS算法)在自适应稳态阶段L(n)取值偏大的缺陷.理论分析和计算机仿真结果表明 该算法的性能优于SVSLMS算法. (By building a nonlinear function relationship betweenLand the error signal,this paper presents a novel variable step size LMS(Least Mean Square)adaptive filtering algorithm.The step size of this algorithm increases automaticly at the beginning of this algorithm or when unknown system is chan- ging with time,and it would be smaller during the steady state.This algorithm avoid the shortage of chan- ging step size of SVSLMS,variable step size LMS based on Sigmoid function,in the process of the adaptive steady state.The performance of this paper algorithm is better than that of SVSLMS with the theoretical analysis and computer simulations. )

一套变频器完整的原理图，变频器维修的初学者可以参考一下，了解变频器的内部结构。(Completa schematica di un convertitore di frequenza, l inverter può fare riferimento al mantenimento dei principianti per capire la struttura interna del convertitore.)

就是哭 干热风飞 二人人 非让人 热 飞人人 (dwfr y gygggygyy ygygygy ygyg ygy ty yg u uy uyuy ywd)

STM32互联型产品 具有USB OTG、支持IEEE1588的以太网接口 双CAN接口和音频级别I 2 S接口的32位微控制器(STM32F107 data introduction)

一些关于FLUENT的UDF，湍流模型以及物理模型的资料，希望能有所帮助(FLUENT UDF, turbulence model and physical model data, hoping to help)

数字下变频器GC4016及其在软件无线电中的应用(GC4016 digital down-converter and its application in software radio)

GMSK是高斯滤波的最小频移键控的简称，基本的工作原理是将基带信号先经过高斯滤波器成形，再进行最小频移键控(MSK)调制。由于成形后的高斯脉冲包络无陡峭边沿，亦无拐点，因此频谱特性优于MSK信号的频谱特性。(GMSK Gaussian filter is the smallest FSK abbreviation, the basic working principle is to base-band signal to pass Gaussian filter shape, and then a minimum frequency shift keying (MSK) modulation. After forming as a result of the Gaussian pulse envelope without the steep edge, there is no inflection point, so the spectrum characteristics of the spectrum than MSK signal characteristics.)

here is a entreprenure info for software