又一个基于Lucene的企业级搜索工具——Kneobase

Colaborativa.net has released Kneobase, an open source "enterprise search" product. It can accept many data sources as searchable elements (and in multiple languages), and can provide search results in multiple formats, including SOAP, which might make it a good search engine for use in a service-oriented environment, because it doesn't need search indexes published to a web server.

Kneobase offers many features for searching, like language auto-detection and search by file type, and allows federation of many distributed content sources in a single textual index.

Kneobase is a web application based upon Lucene and the Spring framework. Its API for searching and discovering is a SOAP web service, making it compatible with SOA architectures. As a .war, installation can be as simple as deploying the .war file in a J2EE application server or servlet container.

基于STM32设计的数字示波器全套资料(原理图、PCB图、源代码) 硬件平台: 主控器:STM32F103ZET6 64K RAM 512K ROM 屏幕器:SSD1963 分辨率:480*272 16位色 触摸屏:TSC2046 模拟电路: OP-TL084 OP-U741 SW-CD4051 CMP-LM311 PWR-LM7805 -LM7905 -MC34063 -AMS1117-3.3 DRT-ULN2003 6.继电器:信号继电器 7.电源:DC +12V 软件平台: 开发环境:RealView MDK-ARM uVision4.10 C编译器:ARMCC ASM编译器:ARMASM 连机器:ARMLINK 实时内核:UC/OS-II 2.9实时操作系统 GUI内核:uC/GUI 3.9图形用户接口 底层驱动:各个外设驱动程序 数字示波器功能: 波形发生器:使用STM32一路DA实现正弦,三角波,方波,白噪声输出。 任意一种波形幅值在0-3.3V任意可调、频率在一定范围任意可调、方波占空比可调。调节选项可以通过触摸屏完成设置。 SD卡存储: SD卡波形存储输出,能够对当前屏幕截屏,以JPG格式存储在SD卡上。能够存储1S内的波形数据,可以随时调用查看。 数据传输:用C#编写上位机,通过串口完成对下位机的控制。(1)实现STOP/RUN功能(2)输出波形电压、时间参数(3)控制截屏(4)控制波形发生器(5)控制完成FFT(6)波形的存储和显示 图形接口: UCGUI 水平扫速: 250 ns*、500ns、1μs、5 μs、10μs、50μs、500 μs、5ms 、50ms 垂直电压灵敏度:10mV/div, 20mV/div, 50mV/div, 0.1V/div, 0,2V/div, 0.5V/div, 1V/div,2V/
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