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数学计算 Coaxial feed structures are widely used in ultra-wide band antennas . This paper modeled the charact
Coaxial feed structures are widely used in ultra-wide band antennas . This paper modeled the characteristic of the monopole antenna feeded by coaxial line by FDTD in the time-domiain,which showes that . Firstly, it introduced the theory of the arithmetic and the particularly realization in the calcu ...
嵌入式/单片机编程 An Overview of Smart Card Security. The smart card, an intelligent token, is a credit card sized
An Overview of Smart Card Security.
The smart card, an intelligent token, is a credit card sized plastic card embedded with an integrated circuit chip. It provides not only memory capacity, but computational capability as well. The self-containment of smart card makes it resistant to attack as it d ...
文章/文档 To review what a metaball is, and how to render them and to describe a new optimization I ve made
To review what a metaball is, and how to render them and to describe a
new optimization I ve made for rendering metaballs. For complex scenes,
it can render hundreds of times faster, though I m certain others have
discovered this trick as well. It does very slightly change the
characteristic ...
书籍 Cooperative+Communications
Cooperation is not a natural characteristic attributed to humans. The typical human horizon is focused
on short-term gains, which might be due to our instinct-driven subconscious occupying a grander
importance than we dare to admit [1]. Cooperating with other individuals or entities, however, usuall ...
书籍 Probability and Random Processes
Many good textbooks exist on probability and random processes written at the under-
graduate level to the research level. However, there is no one handy and ready book
that explains most of the essential topics, such as random variables and most of their
frequently used discrete and continuous proba ...
单片机编程 TLC1549串口传输与单片机的AD设计
详细介绍了TLC1549系列模数转换器的特点及工作原理，然后根据TLC1549的工作时序和A/D转换原理针对实际问题编写了详细的汇编语言程序。
Abstract:
 A basic principle and characteristic of TLC1549 analog-to-digital converter are introduced? detailedly in this article.Through engineering-oriented illust ...
测试测量 低噪声电压基准的噪声测量
 
Frequently, voltage reference stability and noise defi nemeasurement limits in instrumentation systems. In particular,reference noise often sets stable resolution limits.Reference voltages have decreased with the continuingdrop in system power supply voltages, making referencenoise increa ...
技术资料 双单片机控制的超声波百合干燥系统的设计与开发
食用百合是甘肃省特色农产品,但由于百合的季节性,以及为了便于储存与运输,经常需要将百合加工成百合干。针对百合不宜久存的特点那么,研究开发了一种集高效、节能、污染小、品质高的超声波百合干燥工艺及装置。Edible lily is a characteristic agricultural product in Gansu Province, but because of the seasonality of ...
单片机编程 基于DS1991和PIC单片机的智能水卡设计
ＤＳ１９９１是一种多密钥信息纽扣，文章介绍了ＤＳ１９９１的主要特点、工作原理及读写方法。给出了一种基于ＤＳ１９９１和ＰＩＣ单片机的智能水卡设计方案，同时给出了整个系统的硬件组成原理和软件设计方法。
Abstract:
 ＤＳ１９９１ ｉｓ ａ ｍｕｌｔｉｋｅｙ ｉＢｕｔｔｏｎ． Ｔｈｅ ｃｈａｒａｃｔｅｒｉ ...
单片机编程 高性价比单片机P89LPC932及其应用
Ｐ８９ＬＰＣ９３２是Ｐｈｉｌｉｐｓ公司推出的高性价比单片机，该器件内含增强型ＣＰＵ，同一工作频率下的速度为标准８０Ｃ５１单片机的６倍。文中介绍了Ｐ８９ＬＰＣ９３２的主要特点，给出了基于Ｐ８９ＬＰＣ９３２的车辆数据采集系统的组成框图。
Abstract:
 Ｔｈｅ Ｐｈｉｌｉｐｓ Ｐ８９ＬＰＣ９３２ ｉｓ ...