The Kinect for Windows SDK beta is a starter kit for applications developers that includes APIs, sample code, and drivers. This SDK enables the academic research and enthusiast communities to create rich experiences by using Microsoft Xbox 360 Kinec
ZeosDBO is a database middleware components for Borland development tools, including Delphi, C++ Builder and Kylix. The following compilers are supported: Delphi 4 - 7C++ Builder 4 - 6Kylix 1 - 3ZeosDBO supports direct connectivity to the following
晶体管的电流放大能力等于集电极电流比上基极电流。这个比值有很多名字,包括电流增益和beta。不同的作者又对它也使用不同的符号,包括β和hFE。一个典型的集成NPN晶体管的beta值是大约等于150。某些特殊的器件的beta的值可能超过10000。晶体管的beta取决于图1.20中的两种复合过程。 基极复合主要发生在两个耗尽区之间的基极区,这个区叫neutral base 区。有三个因素影响基极区的复合率:neutral base的宽度,基区掺杂和复合中心的浓度。薄的基区缩短了少数载流子需要穿越的