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该文研究了河南省不同年龄组的历史发展趋势和65岁以上人口未来发展趋势以及影响老龄化相关因素的问题。通过对不同时期的人口数据的分析和预测，从一个经典的模型入手，建立了三个不同的模型，分别 模型、 模型和关联分析模型，然后采用统计分析的方法来解决这些问题，预测出了河南省未来老龄化人口的发展。(This paper studies the different age groups in Henan Province of historical development trends and population over the age of 65, as well as the impact of future development trend of aging-related factors. Different stages of the analysis of population data and projections from a model of the classic, the establishment of three different models, namely, model, models and associated analysis model, and then using statistical analysis methods to solve these problems, predict the Henan Province, the future development of an aging population.)

Brain Tumor Image Fusion Technique

差分法求解一维非稳态偏微分方程，两种代码，给定初值和边界值就可求(One dimensional unsteady state solution by difference method)

简单的knn算法展示，用户可以直接调用，适合大家学习交流使用(the simple knn,you can call it for your work)

这是介绍人工智能中描述逻辑的经典参考书，简要易懂。(This is to introduce artificial intelligence in the classic description logic reference, a brief and understandable.)

II滤波器的chebyshev滤波器的C语言程序设计。(II Filter chebyshev filter C Programming Language.)

说明：  基于盲返卷积方法，恢复被噪声污染的图像，利用matlab实现。(Blind return convolution methods to restore the image of the noise pollution, the use of matlab.)

s变换 最新应用于土木工程研究中，新的信号变换方法(S transform has recently been applied to civil engineering research, a new signal transformation method)

说明：  实际的数值是带有符号的，即可能是正数，也可能是负数，数值的正负之分如何实现？ 通过补码表示，且用一位符号位区别其正负即可。 而数值本身可以包括整数，也可以包括小数。那么，在计算机中是如何确定小数点的位置呢？ (The actual value is unsigned, which may be positive, it may be negative, positive and negative values divided how? By complement representation, and with a bit different from the positive and negative signs can be. The value itself can include an integer, it can also include decimals. Then, the computer is how to determine the decimal place?)

一些常见的matlab源代码，参加建模的人很值得一看(Common matlab source code, it is worth a visit to participate in modeling)