Can the asymmetry of Okun's law be interpreted from a social perspective? Evidence from the World Bank von Yi, Lin, Kaifeng, Song, Jingbin, Tu, Liangrong, Lai

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Optimization of Paste Backfilling Material Ratios for Long-Distance Transportation von Du, Bo, Li, Yanhe, Chen, Xingming, Song, Kaifeng, Wei, Dingyi, Cao, Weijie, Sun, Guangzhong

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Research on Path Optimization Technology for Free-Form Surface Five-Axis NC Machining von Song, Kai Feng, Cao, Shu Kun, Song, Li, Sui, Zhi Ming, Dong, Ke

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Free-Form Surface Five-Axis Machining Tool Path and Tool Posture Simultaneous Multi-Objective Optimization Theory Research von Chen, Xiu Sheng, Song, Kai Feng, Cao, Shu Kun, Song, Li, Lv, Jie

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Error Model of Machine Tool Based on Cutter Contacting Point Vector Chain von Deng, Yong Hong, Zhang, Kun, Cao, Shu Kun, Lv, Jie, Song, Kai Feng

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Integrated router based on Internet of Things von SONG KAIFENG

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Shielding door for magnetic resonance von SONG KAIFENG

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Intensive mine filling system von SONG KAIFENG

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Development and Application of an Autonomous Learning System for Engineering Graphics Education von Song, Weiwei, Cao, Shukun, Yang, Bo, Song, Kaifeng, Wu, Changzhong

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Software Module Development for Free-Form Surface Five-Axis Machining Path and Tool Posture Simultaneous Optimization von Wu, Chang Zhong, Song, Kai Feng, Cao, Shu Kun, Song, Li, Song, Wei Wei

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Free-Form Surface Five-Axis Machining G-Code Automatic Generation System Based on Path Messages for the Different CNC System von Song, Kai Feng, Cao, Shu Kun, Jia, Jia, Lv, Jie, Song, Wei Wei

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Mine filling powder mixing system von SONG KAIFENG, QIN LILUN

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Flying dust covering agent stirring machine von SONG KAIFENG, QIN ZHENBAO

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Concrete delivery pump von SONG KAIFENG, ZHOU YANG

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Cleaning device of epitaxial equipment, epitaxial equipment and self-cleaning method von LING XIAOQING, SONG KAIFENG

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Octree Based Representation and Volume Rendering of Three-Dimensional Medical Data Sets von Weiwei Song, Shungang Hua, Zongying Ou, Hu An, Kaifeng Song

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Intelligent compression transmission method for construction site monitoring data von SONG KAIFENG, SONG DUOYANG

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Unfoldable crossing frame based on automobile crane von SONG KAIFENG, WANG ZHIBIN, QUAN ANLONG, ZHANG YANG

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Damping sole based on zero Poisson's ratio honeycomb structure von SONG KAIFENG, ZHANG YUJIE, ZHOU RUI, CHEN JIAFU

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Small-sized bedside cupboard von KAIFENG SONG

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