-
Simulink
说明: Simulink的系统仿真与应用 自动控制原理电路实习的simulik系统仿真(Simulink in system simulation and application of principles of automatic control circuit system simulation practice simulik)
- 2011-03-06 12:27:42下载
- 积分:1
-
With-cross-factor-pso
带交叉因子的粒子群优化算法matlab源程序.doc(With cross-factor particle swarm optimization algorithm matlab source code. Doc)
- 2013-05-01 18:41:51下载
- 积分:1
-
LightBattery
这是一个光伏电池的基本模型,该模型可以用于学习或者基础性的研究(the battery model of the photovoltaic)
- 2021-04-26 18:18:45下载
- 积分:1
-
Walsh
本方法是对二维医学图像实现的Walsh变换,属于预处理范围,为下一步的图像分割,配准等打下基础(This method is the realization of two-dimensional medical images of the Walsh transform, belong to the scope of pre-treatment, for the next phase of image segmentation, registration, etc. to lay the groundwork)
- 2008-01-22 10:40:00下载
- 积分:1
-
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
-
Mushroom_1_2a
Project SmartGREEN Control 1.2a
Main Program [Arduino]
- 2013-12-06 10:04:31下载
- 积分:1
-
MIN
一次完成算法的最小二乘法的过程辨识代码。以m序列为输入量,用其lsim响应,作为辨识依据(One of the least squares algorithm to complete the process of identification code. To m for the input sequence with its lsim response, as a basis for identification)
- 2009-05-30 16:08:59下载
- 积分:1
-
NEWwork1
认知无线电 2比特量化 EGC 硬判决仿真(Cognitive radio, two-bit quantization the EGC hard judgment simulation)
- 2012-07-22 13:16:00下载
- 积分:1
-
geneticVSP
java的时间序列分析代码 Generic Matlab (Mtalb implemention for Generic arogrithm Matlab implemenation)
- 2012-11-29 17:56:14下载
- 积分:1
-
AP
说明: 近邻传播是一种较新颖的聚类方法,运算量少,聚类速度快。(Affinity Propagation is a new clustering method, which has a low calculation and high clustering speed.)
- 2014-04-04 15:42:07下载
- 积分:1