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Trans. Nonferrous Met. Soc. China 30(2020) 1707-1716 Prediction of metal futures price volatility and empirical analysis based on symbolic time series of high-frequency Dan WU1,2, Jian-bai HUANG1,2... February 2020; accepted 25 May 2020 Abstract: The metal futures price fluctuation prediction model was constructed based on symbolic high-frequency time series using high-frequency data on the Shanghai......
the construction of metal futures markets based on a global vision and take certain measures, such as improving laws and regulations, expanding product category, vigorously developing hedging tools as well... J. Cent. South Univ. (2018) 25: 2929-2943 DOI: https://doi.org/10.1007/s11771-018-3963-9 Industrial transmission effect of international metal price shocks in perspective of industry chain GAO......
Metal Dusting-Mechanisms and Preventions () 摘要:Metal dusting attacks iron, low and high alloy steels and nickel-or cobalt-base alloys by disintegrating bulk metals and alloys into metal particles... mechanism is still not well understood. Current methods of protection against metal dusting are either directed to the process conditions-temperature and gas composition-or to the development of a dense......
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futures prices. SouCek [23] analyzed co-movements of equity, oil and gold futures market. ZHU et al [24] indicated that the volatility of metal futures price is mainly determined by the trade behavior of long-term investors. SHI et al [25] investigated the effect of trading volume in volatility of Chinese metal futures market. By using empirical evidence, FANG et al [26] proved that macroeconomic......
of outliers and oil price shocks on volatility of metal prices [19,20]. As we all know, the impetuous development of Chinese economy triggers high dynamics in the nonferrous metals futures market, which...-varying nature. Moreover, daily volatilities for the two metal futures both exhibit positive skewness and excess kurtosis. Ljung-Box Q-statistics of daily realized volatility RVt and daily logarithmic......
and other nonlinear theory into the analysis and explanation of the behavior in metal futures market. Key words: metal futures; price-volume correlation; long memory; MF-DCCA method; multifractal... simultaneously in metal futures market within the MF-DCCA methodological framework and a further proof was given by analyzing the source of multi-fractal feature. Empirical results will help us......
Three-dimensional simulation of sintering crunodes of metal powders or fibers by level set methodCHEN Dong-dong(谌东东)1, ZHENG Zhou-shun(郑洲顺)1, WANG Jian-zhong(王建忠)2, TANG Hui-ping(汤慧萍)2, QU Xuan-hui(曲选辉)3(1. School of Mathematics and Statistics, Central South University, Changsha 410083, China;2. State Key Laboratory of Porous Metal Materials (Northwest Institute for Nonferrous Metal Research),Xi......
Sphericizing metal powders by mechanical means WANG Fu-xiang(王富祥), GAI Guo-sheng(盖国胜), YANG Yu-fen(杨玉芬) Key Laboratory for Advanced Materials of Ministry of Education, Department of Materials... shaped metal powders were impacted and sphericized by using high speed airflow impact method particles composite system(PCS). The optimum technological parameters for the metal powders processed were......
