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传感器网络
传感器网络由大量能量有限的微型传感器节点组成.因此,如何保证在足够覆盖监测区域的同时延长网络的寿命,是一个需要解决的重要问题.为了达到这一目标,一种广泛采用的策略是选出部分能够足够覆盖监测区域的节点作为工作节点,同时关闭其他冗余节点.提出了一个数学模型,使得只要已知监测范围和节点感知半径的比值,就可以计算出达到服务质量期望所需要的节点数量.需要指出的是:与大部分研究覆盖的文献不同,该研究不基于节点的位置信息,因此可以极大地降低硬件成本,并且减少节点获得和维护位置信息的开销.模拟实验结果表明:在随机部署条件下,服务质量期望与实验所得到的实际覆盖度的误差不大于服务质量期望的2％ 而对于相同的服务质量期望和实际覆盖度,计算所得的工作节点数量与实验所得的工作节点数量的误差小于计算数量的5％,这表明推导出的节点数量与服务质量期望之间的关系与模拟实验的结果相吻合.该结果可以广泛应用于传感器网络的节点部署、拓扑控制等领域中.()
- 2008-03-22 23:09:53下载
- 积分：1
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A-new-memetic-algorithm-approach-for-the-price-ba
memetic algorthium in the distributed generation enivorment
- 2013-09-01 00:47:10下载
- 积分：1
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NEFCLASS
This document explains the NEFCLASS. NEFCLASS is a Neural Fuzzy Classification model. Mainly used for the classification of data.
- 2009-10-09 00:20:43下载
- 积分：1
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Real-time-detection-of-negative
同相牵引供电系统旨在实现电能质量的综合补偿。提出了一种基于同步坐标变换的电流检测方法，能实时准确地检测
出负载电流的基波正序有功分量、基波正序无功分量、基波负序分量以及谐波分量，为综合补偿提供了基础。电能质量的补
偿力度与设备容量之间存在非线性关系。提出补偿度的概念，并给出补偿度与电能质量参数的关系，通过给定电能质量期望
参数，实时调整负序、谐波以及无功补偿度，使得综合潮流控制器容量在各电能质量补偿参数之间得到实时优化配置，从而
实现同相供电系统容量优化满意补偿。理论推导和仿真结果验证了所提方法的正确性和可行性。(The cophase traction power supply system aims at achieving power quality comprehensive compensation．A current
detection method based on synchronous reference frame transformation is proposed．The method can decompose the load current
real-timely into fundamental positive-sequence active component，fundamental positive-sequence reactive component，fundamental
negative-sequence component and harmonic component，which lays a foundation for comprehensive compensation．There are
nonlinear relation between compensation strength of power quality and device capacity．The paper proposes the concept of
compensation degree and gives the relationship between compensation degree and power quality parameters．By giving expected
power quality parameters，it adjusts compensation ratios of negative，reactive and harmonics instantaneously，so that the IPFC
capacity can be allocated between power quality compensating parameters optimally and real-timely，thus achieving capacity optimal
satisfactory compensa)
- 2012-03-01 16:12:06下载
- 积分：1
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SKC
IBM 云技术的说明，深入浅出地对IBM的易云技术进行讲解，有助于在中国地区的云技术推广和普及。(IBM cloud description of the techniques in layman' s language of IBM' s easy to cloud technology to explain, help in the cloud technology and the popularization of)
- 2012-06-27 14:54:30下载
- 积分：1
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ieee_posix_1003.1b
Information technology—Portable
Operating System Interface (POSIX),本文档为POSIX标准(Information technology-PortableOperating System Interface (POSIX), this document for the POSIX standard)
- 2008-06-14 10:34:32下载
- 积分：1
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xiaomuchkeyanjinghua
小木虫最新科研精华贴，对硕博生有很多的作用，很不错的资料哦(Wooden stick insect essence of the latest research on the role of Shuobo students have a lot of very good information Oh)
- 2013-11-13 17:19:49下载
- 积分：1
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Locally-Laplace-Isometries
发表在 The MIT Talbot 2013 Workshop 的论文 (Locally Laplace Isometries and Fibonacci Primes. this paper shows that there exists a reversible, unique and separable elliptic, Brahmagupta arrow. In this setting, the ability to study positive scalars is essential. Recent interest in partially ultra-positive domains has centered on deriving Pythagoras{Wiles scalars.)
- 2013-09-26 18:56:17下载
- 积分：1
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MEMS-based-spectrometer
一种基于MEMS技术的光谱仪系统介绍及发展情况介绍。(Introduce a systematic introduction and development of MEMS-based spectrometer.)
- 2012-08-09 17:23:13下载
- 积分：1
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MFSKsymblerate
介绍了如何利用FSK信号的小波脊线，进行FSK信号的符号率估计(the estimation of symbol rate for FSK signal)
- 2009-09-04 11:21:22下载
- 积分：1
