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The purpose of airspace classification is to ensure the safely, orderly and efficiently use of the airspace. and to satisfy different airspace user's demand and configure air traffic control resource optimization. Based on disadvantage of airspace classification in use, the article first studied key factors to be considered in the future and put forward a kind of airspace classification criterion...
It is very important to evaluate the competition of the equipment manufacturing industry. The evaluation index system of equipment manufacturing competition was built. Characterization and interpretation of the comprehensive competition of every industry of the equipment manufacturing was done by principal component analysis. Principal component analysis has been shown to be a powerful tool for analyzing...
Based on the deeply study on Liaoning province highway network's supply and demand index, this paper presents a scientific evaluation index system. Then the paper discusses the comprehensive DEA model how to evaluate Liaoning province highway network, actualities of the year 2008 of highway networks of all zones in Liaoning province is evaluated and ranked. The results show that the method is effective...
Jilin province locates in the northeast of China, which is an important grain production region and golden corn production area. So, the agriculture of Jilin province acts pivotal roles in food supply and food safety in China. Because agricultural mechanization can enhance the agricultural production rate and efficiency, we should clearly indentify the development of agricultural mechanization in...
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