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粘弹性地震波的衰减
粘弹性地震波的衰减不仅与传播时间有关，而且与子波的频率、速度场的分布、射线路经、地下构造展布都有关，因此，仅仅利用反Q滤波对粘弹性的吸收和频散做一维补偿不能完全的恢复地震波长的本来特征。(Viscoelastic seismic wave attenuation is not only associated with the propagation time, and and wavelet frequency distribution of the velocity field, the ray path, subsurface structures spread are related, using only inverse Q filtering viscoelastic absorption and dispersion do The one-dimensional compensation can not completely restore the original features of the seismic wavelength.)
- 2013-03-16 14:56:55下载
- 积分：1
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VSSSERVER
vss项目版本管理软件，本文档详细的介绍了VSS的使用方法(vss project version management software, this document describes in detail the use of VSS)
- 2010-11-11 17:43:06下载
- 积分：1
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diguisuanfayuanli
这是一个关于递归算法原理的解释，很不错，请大神指点。(This is a recursive algorithm on the interpretation of the principle, very good, please great God pointing.)
- 2017-07-19 23:51:18下载
- 积分：1
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5
说明： 目前牵引变压器差动保护原理在某些因素的影响下并不能准确地区分变压器内部故障和外部故障，可能造成保护误动或拒动，危及电气化铁道系统的安全运行。针对这一现状，建立了计及铁芯非线性特性和磁滞效应而又无需铁芯的B－H曲线数据的牵引变压器模型，提出了一种通过参数辩识理论来辩识牵引变压器绕组参数实现牵引变压器微型机保护的方法。该方法能有效地区分内部故障、外部故障和励磁涌流。仿真计算表明了该方法的正确性和可行性。(Traction transformer differential protection principle in the safe operation and can not accurately distinguish between the transformer internal faults and external faults, may be to cause protection mistaken or refuse to move, endangering the electrified railway system under the influence of certain factors. In response to this situation, taking into account the core nonlinear characteristics and hysteresis and without traction transformer core of the B-H curve data model, a the traction transformer winding identification through parameter identification theory parameters to achieve traction transformer microcomputer protection. This method can effectively distinguish internal faults, external faults and magnetizing inrush current. The simulation results show that the correctness and feasibility of the method.)
- 2012-09-13 21:57:34下载
- 积分：1
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CMOS
cmos模拟电路设计，很经典的一本教材的电子版，大家分享(cmos analog circuit design, it is a textbook classic of the electronic version, we share)
- 2009-06-28 22:13:05下载
- 积分：1
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psjiaoan
这是photoshop实例教程的资料，包括水珠的制作、七彩气泡、蝴蝶和倒影等等(This Photoshop tutorial examples of information, including the production of water droplets, colorful bubbles, butterflies and reflection, etc.)
- 2012-07-04 16:47:30下载
- 积分：1
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Clean-Coder
关于编写简洁代码的书籍，讲述了怎样编写高效的代码(Books about writing clean code, tells the story of how to write efficient code)
- 2013-10-31 17:53:16下载
- 积分：1
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computerlist
中国计算机学会推荐国际刊物会议列表2012最新版(China Computer Society recommended list of 2012 International Conference on the latest version of the publication)
- 2015-02-10 09:12:17下载
- 积分：1
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GAMITP10.4
GAMIT安装完成后的运行实例··············(GAMIT running instance after installation is complete)
- 2013-07-17 16:23:26下载
- 积分：1
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control
非常适合初学者的内部控制课件，内容详细，案例简介明晰，内容适用日常生活(Very suitable for beginners internal control courseware, detailed, case Introduction clarity, will apply in daily life)
- 2015-09-12 11:08:14下载
- 积分：1
