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boost_PCM_simulink_in
基于平均法的boost型DC/DC建模步骤,包括电压模和峰值电流模。增加了误差放大器放大倍数的确定,电源调整率,负载调整率和三种变换器的一阶等效模型(Based on the average of the boost-type DC/DC modeling steps, including the voltage mode and peak current mode. An increase of the error amplifier to determine the magnification, adjust the rate of power supply, load-adjusted factor and three first-order equivalent converter model)
- 2009-03-10 10:46:57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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speech-emotion
Speech Emotion Recognition: Comparison of Speech Segmentation Approaches
(Recognition of emotional states carried in speech, is of a great interest in modern human computer interaction developments. )
- 2012-12-01 22:35:10下载
- 积分:1
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fcombi
an efficient BSS algorithm
- 2009-09-16 17:18:23下载
- 积分:1
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COMPRESS-RLE
Gray code and RLE compression.
- 2010-10-29 20:03:44下载
- 积分:1
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funWatershedDistance
whatershed image processing
- 2011-05-03 21:24:21下载
- 积分:1
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wireless_communication
无线通信经典数据,并且配有对应的matlab仿真程序,读者可以掌握对应的技术细节(The classic wireless communication data, and with the the corresponding Matlab simulation program, the reader can grasp the corresponding technical details)
- 2013-03-04 10:34:45下载
- 积分:1
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private-100212
matlab写的稀疏表示工具箱,里面包含许多相关函数,使用方便(matlab write the sparse representation Toolbox, which contains a number of related functions, easy to use)
- 2012-09-03 21:24:21下载
- 积分:1
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eemdtz
此文件包含着EEMD的能量特征分量的计算程序和EEMD之后进行各个IMF的KL散度指的计算程序。(This file contains the energy characteristic component EEMD computational procedures and after each EEMD KL divergence refers to the IMF s calculation program.)
- 2013-09-20 18:25:25下载
- 积分:1
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EM3DTask_20130311_NEW
EM3DTask_TFEM2,三维电磁仪扫频命令表编辑程序源代码(editor of task table of TFEM-2)
- 2014-01-10 11:26:33下载
- 积分:1