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butonng_zuhe
该函数的功能使根据所给的数组,根据不同的组合个数,将数组分成不同的组,
C-m-n C m 取 n,列出所有的组合!(list the differant units...)
- 2010-03-07 20:10:09下载
- 积分:1
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SpreadSpectrum1
说明: CDMA的信道估计S函数 ,希望对大家有用(CDMA channel estimation of the S function, in the hope that useful)
- 2008-11-25 22:15:47下载
- 积分:1
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renkoumoxing
本文区别于其他传统的人口预测模型,深入分析了当前中国人口的基本情况,以及
最近几年中国人口的发展情况与趋势,针对中国人口基数大、男女比例不协调、乡村人
口城镇化加速、人口老龄化日益严重等显著特点,在各年龄段生育率短期内保持不变的
假设下,建立基本的人口转移回归模型,用于模拟预测短期内中国各类人口数量发展变
化。该模型预测结果显示,中国人口在未来十几年内增长一定幅度后开始下降;与此同
时,人口老龄化、男女比例失调等问题日益严重。该模型短期内的预测效果比较好。
为了使中国将来的人口发展健康、平衡,综合考虑中国以及欧洲一些发达国家和亚
洲一些实行计划生育较早的国家以前以及当前的一些情况,本文提出了修改计划生育政
策的建议。面对日益严重的老龄化现象,我们提出生育率应该参考老龄人口比例这一新
思想,并建立生育率与老龄人口比例的关系模型,用于长期人口的预测。预测结果显示
中国总人口在短期内持续上升,在2025 年到2040 年之间基本保持在14.6 亿的最大值,
然后开始缓慢下降。
两个模型的结果均显示,中国将会面临严重的老龄化和男女比例不协调两个问题。
最后我们提出了适当措施以缓和这两个问题带来的影响。(This is different from other traditional population projection model, in-depth analysis of the current basic situation of China s population, and
In recent years the development of China s population and the trend for China s huge population, gender disharmony, rural people
I accelerated urbanization, the growing aging population and other significant features in the short term fertility of all ages remain unchanged
Assumption, the establishment of basic population transfer regression model, to simulate and predict the short term development of China s various types of population change
Of. The predicted results show that China s population growth in the next decade began to decrease after a certain extent and the same
When an aging population, gender imbalance and other growing problem. The model predicted the short-term results were better.
To make the development of China s future population health, balance, considering China and some developed countries in Europe and A)
- 2010-05-13 11:54:40下载
- 积分:1
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PSO_OMP
这是采用PSO算法算法以实现信号的正交匹配追踪分解及其重构……(This is the PSO algorithm algorithm to achieve signal orthogonal matching pursuit decomposition and its reconstruction ...)
- 2013-03-03 16:07:55下载
- 积分:1
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ScaleFreeNetwork
无标度网络结构相对简单,实现算法与可视化并不困难。与其它语言相比,Matlab 语言具有丰富的数学
函数库,能够写出简约的源代码。对于非计算机专业的大学生来说,以此为基础,能够快速进入复杂网络前沿
研究课题,对其数学建模能力和科研能力的培养极为有益。(Scale-free network structure is relatively simple algorithm is not difficult and visualization. Compared with other languages, Matlab language with a rich library of mathematical functions, can be simple to write the source code. For non-computer science students is as a basis to quickly enter the complex network of cutting-edge research topics, their mathematical modeling and scientific research is extremely useful ability.)
- 2009-04-22 15:14:48下载
- 积分:1
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2d-barCode-qrcodePdatamatrix-PP
2d barCode qrcode+datamatrix + others
- 2011-05-22 03:15:09下载
- 积分:1
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Quadratic-programming
用于解决二次规划问题。是《精于matlab最优化计算》一书中的源代码,希望有用。(Quadratic programming)
- 2011-09-17 21:06:35下载
- 积分:1
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colorbar
仿matlab colorbar 用于显示数值计算后的结果分布(Imitation matlab colorbar used to display numerical calculation of the distribution of results)
- 2013-04-24 20:52:24下载
- 积分:1
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face-decetion
用Matlab实现简单的原图片在二值化下的人脸检测以及网络表格标记图像(Using Matlab achieve a simple binary original picture in the next face detection, and network forms Tagged Image)
- 2015-04-03 12:45:20下载
- 积分:1
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canalradio
This code is used for planification network. It permits to determine the path loss exponent.
- 2016-06-21 18:20:20下载
- 积分:1