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anshu
coding for various coding techniques with convolution, etc.
- 2011-08-28 15:34:54下载
- 积分：1
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hanban-paiduilun--renkouzengzhang
本人自己做的三篇数学建模论文 一个是基于主成分分析的人口增长预测 一个是基于排队论的高速公路收费口的设置 一个是关于航班的(I own the three papers of mathematical modeling is based on principal component analysis of a population forecast is based on queuing theory, a highway toll gate, setting one on the flight)
- 2011-09-22 12:19:23下载
- 积分：1
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xiandaixinhaochuli
《现代信号处理教程》清华出版社 胡广书编著的配套源代码(The modern signal processing course of tsinghua university press HuGuang book compiled supporting the source code
)
- 2011-12-29 19:26:01下载
- 积分：1
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4_2
In the following figure is a system of two water tanks. Mass flow into the top tank at a fixed rate q0 and exits this tank through an orifice of area A1. This exit water then flows into a second tank which has an orifice of area A2 at its bottom. Each tank has constant cross section of area A, with A>>A1,A2.
(a) Determine the ODE model which governs the heights z1 and z2 of water in the system.
(b) Determine the equilibrium given a fixed rate q0.
(c) Linearize the system model about the equilibrium.
(d) Compare the step responses of the nonlinear model and linearized model by choosing reasonable system parameters.
( (b) Plot the flow v.s. pressure drop curve with the estimated c to validate your estimation
- 2012-11-30 15:58:41下载
- 积分：1
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DCT
基于Matlab GUI的图像的DCT，自由调节压缩率，计算峰值信噪比，并图形化对比还原图像(Matlab GUI for image-based DCT, freely adjust compression rates, the peak signal to noise ratio, and reduction of image contrast graphic)
- 2010-07-18 10:21:01下载
- 积分：1
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jisuan
土木工程分析结构地震作用的多自由度动力时程分析程序(Dynamic analysis program)
- 2012-04-16 00:06:29下载
- 积分：1
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homework1
octive 斯坦福大学公开课 机器学习公开课作业1(octive machine learning publicly Homework1)
- 2013-03-30 10:19:12下载
- 积分：1
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Aerodynamic-performance
提高风力机将风能转化为机械能的效率，根据我国西北地区的风频风能曲线，用最优设计攻角沿叶片轴线的非线性分布修正传统Wilson算法，优化设计大型水平轴风力机叶片的气动性
能．该优化设计利用Madab优化工具箱，优化速度干涉因子的迭代计算，提高计算效率；考虑多翼型和变攻角等因素对叶片外形优化的影响，从结构及加工工艺角度修正翼型．通过对1．2MW风力发电机组叶片外形的气动性能计算和优化设计，结果表明该优化设计的有效性和可行性，可为风力机叶片外形设计提供参考．(Improve wind turbine wind energy into mechanical energy efficiency, according to the Northwest China wind frequency wind power curve, optimum design angle of attack along the blade axis of traditional non-linear distribution correction Wilson algorithm to optimize the design of the aerodynamic performance of the large-scale horizontal axis wind turbine blades . The Optimal Design Optimization Toolbox Madab optimized for speed interference factor iterative calculation to improve computational efficiency consider multi-airfoil and change the angle of attack and other factors on the blade shape optimization, airfoil from the structure and processing angle correction. By 1.2MW wind turbine blade shape aerodynamic performance calculation and optimization design, the results show that the effectiveness and feasibility of the optimized design can provide a reference for the wind turbine blade shape design.)
- 2013-04-21 14:10:52下载
- 积分：1
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Electronics_and_Circuit_Analysis_Using_MATLAB
Electronics and Circuit Analysis with MATLAB
- 2009-05-01 21:11:21下载
- 积分：1
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CurvrFitting
非晶态硅Forouhi-Bloomer模型参数拟合计算
半导体材料对光的吸收作用用k表示。材料的k一般都会随着入射光的波长的改变而改变。其变化规律因材料而异，但是对于同一类型的材料常可以用一种模型来表示。但是对于特定的材料，其模型参数的确定常的通过曲线拟合的方法得到的。
题目：
对于非晶态的硅，其K满足如下模型：
其中A、B、C为系数，且均大于零，并满足4C-B2>0 Eg为禁带宽度，值为1.3 ev , E为能量。
现已知一组E对应的K值，通过曲线拟合的方法求出A,B,C。(Curve fitting)
- 2013-03-10 19:36:03下载
- 积分：1
