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Digital Inputs,Information Transparency,and Global Supply-Chain Security
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作者 Jijun Yang Qi Guo +1 位作者 Feng Dai Jinlan Ni 《China & World Economy》 2025年第3期1-32,共32页
This study examined the impact of digital inputs on global supply-chain security.Using data from the Asian Development Bank Multiregional Input-Output database,covering 62 countries or regions and 35 industries from 2... This study examined the impact of digital inputs on global supply-chain security.Using data from the Asian Development Bank Multiregional Input-Output database,covering 62 countries or regions and 35 industries from 2007 to 2022,digital inputs were found to enhance the level of supply-chain security significantly.In times of crisis prevention,digital inputs not only improved supply-chain security but also contributed to a notable recovery effect.Mechanism tests indicated that digital inputs enhanced supply-chain security mainly by improving information transmission efficiency and increasing both demand-side and supply-side information transparency.Heterogeneity analysis indicated that all three mechanisms were significant in the manufacturing sector,but demand-side information transparency was not significant in the service sector.Further analysis identified post and telecommunications sector as having the greatest positive impact on supply-chain security. 展开更多
关键词 digital inputs information transmission efficiency information transparency supply-chain security
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自由锻造水压机微机控制系统的设计与实现
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作者 朱玉春 《煤矿机械》 北大核心 2008年第8期121-123,共3页
基于微机数字控制技术及传统的控制理论,针对1 250 t自由锻造水压机微机控制系统的设计框架,重点叙述完成总体设计的详细过程。
关键词 数字控制 闭环控制方式 位置随动系统 输入输出
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