Reseach On Marching-on In-time Scheme And The Fast Algorithm Of Time Domain Integral Equation

Non-ferrous metals industry is an important basic energy industry of China,which supports for the people’s livelihood and the military industry.The operating level of non-ferrous metals listed companies indicates the operating level of the industry.Currently, most of the financial performance analysis for non-ferrous metals industry is futures investment report; there has been little in-depth, systematic and complete research.Therefore, It is necessary to evaluate the financial performance of these listed companies in a more scientific,objective and systematical way.Based on the non-ferrous metals listed company finical statements of 2012, this thesis utilizes Fuzzy Clustering Analysis and Principal Components Analysis(FCA-PCA) to select financial indicators.The analysis is performed with the aid of the MATLAB7.1 and SPSS20.0 software.The FCA-PCA overcomes the shortcomings of indicator evaluation system by using objective indicators method.The weight of the selected indicators is first decided by the entropy method.And then the Wall Scoring Method is used to get scoring rank.Finally, the correctness of the results of indicators weight and scoring rank is verified by the Analytic Hierarchy Process, then evaluating overall financial performance of non-ferrous metals industry, taking “Aluminum Corporation Of China Limited” for one specific company to evaluate based on the financial data from 2007-2013.The results shows that:(1) All aspects of financial performance of the non-ferrous metals listed company are unsatisfactory and slightly lower than the average level of large stated-owned enterprises.(2) The financial performance of monopoly non-ferrous listed companies are better than those common ones.(3) “Aluminum Corporation Of China Limited” represents the status quo of those old stated-owned enterprises, which suffer from large productivity with very low profits and weak market competitiveness. Its decision-making and management mechanism is less flexible than those private company, the root of the problem lies in its structure does not adapt to market competition.