Due to the different combustion agents used in the manufacture of glass in ancient China and abroad, there are apparent differences in the composition of ancient glass products in China and abroad. This paper presents a reduction analysis and identification of the composition of ancient glass products, which is of great significance to the study of the Silk Road and the history of the development of glass products. This paper analyzes and identifies the composition of ancient glass products based on the data of C questions of the CUMCM competition. The study first used a neural network optimized by a genetic algorithm to screen out the elements closely related to the weathering condition and used regression to reduce the composition of the weathered samples. The reduced samples were subclassified by systematic clustering according to their respective compositions, and high-potassium glass and lead-barium glass were classified into two subclasses each. The classification basis was reasonably clarified by factor analysis. Finally, the strong classifier was optimized to identify and classify the samples based on the unknown sample components. The correct identification rate reached 100%, which played a good role in distinguishing the weathered Chinese and foreign glass products.
Objectives: The international logistics market is very broad and the system is also very large and complex. It depends on international information science and technology, and has high requirements for standardization. International logistics can realize trade between countries.
Its development puts forward higher requirements, higher standards and higher development for international transactions, This paper focuses on the impact of the development of the logistics industry on China tobacco foreign trade in order to promote the development of international logistics
and provide practical significance for the globalization of China tobacco foreign trade. In the research, the methods of literature review and case analysis are used to analyze theimpact of the international logistics industry on China tobacco foreign trade. The results show that international
logistics is conducive to the adjustment of China tobacco foreign trade demand and supply, mobilizing the international consumption flow, improving the national GDP, and allowing the economic cooperation of various countries to make each country together and interdependent. Therefore, the
research on international logistics is conducive to international cooperation and exchange.By studying the development of the logistics industry, this paper analyzes the promotion of China tobacco industry foreign trade, improves the impact of the global tobacco industry on China tobacco trade
deficit, and provides practical significance for the globalization of China tobacco trade.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.