Yong Da Yan

Hierarchical Point Cloud Analysis for 3D Defect Detection of Annular Welds

Jingyu Zhang, Yong Da Yan, Shuaiyi Wu, Chuangyu Duan

Annular fillet welds on guide rods lie in stress concentration zones and are susceptible to fatigue failure under dynamic suspension loads, necessitating accurate quality inspection. However, their complex three-dimensional topography makes it difficult for conventional methods to balance detection accuracy and efficiency. …

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Shape prior-constrained improved Chan-Vese model for inner diameter measurement of guide rods

Yong Da Yan, Jingyu Zhang, Li Guo, Shuaiyi Wu

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Bismuth nanoparticles embedded in carbon fibers as flexible and free-standing anodes for efficient sodium ion batteries

Yang Cao, Shiwei Wei, Huifang Zhang, Yong Da Yan et autres

) and long-term cycle stability (only attenuates 0.12% in each cycle after 2000 times). This work provides a convenient and effective strategy for the synthesis of flexible and free-standing anodes for high-performance sodium ion batteries.

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A Case Study on Development of Water-flow Fractured Zone During Close-Distance Repeated Coal Mining

Yuanzhong Luan, Yaofan Shi, Yu Shui, Yue Dong et autres

Abstract The upper and lower seam of seam No.3 of some coal mines in Shandong Province are in close proximity which can be regards as close-distance coal seam mining.This paper takes the close-distance working face of Fucun coal mine as engineering background …

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Research on Machined Surface Morphology of Hardened Steels Based on Machining Feature

Song Tao Wang, Yong Da Yan, Bin Jiang, Min Zheng et autres

It is a key point that the surface machining feature plays an important role on machined surface morphology of high speed milling hardened steel. The machining surface morphology surface morphology plays an important role in the formation of surface roughness. In this …

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Polymer nanostructured components machined directly by the atomic force microscopy scratching method

Yong Da Yan, Wei Da Gao, Zhen Hu, Xue Sen Zhao et autres

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Effect of Sample Materials on the AFM Tip-Based Dynamic Ploughing Process

Yong Da Yan, Wei Tao Liu, Zhen Hu, Xue Sen Zhao et autres

To study the effect of different sample materials on the nano dynamic ploughing process in the AFM tapping mode, the spring-oscillator model is employed to simulate the vibrating AFM tip to deform the sample surface. On the surface of different samples with …

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Self-Assembling Branched and Hyperbranched Nanostructures of Poly(3-hexylthiophene) by a Solution Process

Han Yan, Yong Da Yan, Zai Yu, Zhixiang Wei

As a typical linear conjugated polymer, poly(3-hexylthiophene) (P3HT) has been successfully used in organic electronic and optoelectronic devices. Strong anisotropic π−π interactions between planar molecular backbones and weak van der Waals interactions between their alkyl side groups make P3HT favorable for the …

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In Situ Nanoscale Deformation Studies on Micro Copper Wires Using Atomic Force Microscopy

Bo Wen Zhang, Yong Da Yan, Zhen Hu, Xue Sen Zhao et autres

As the dimensions of parts become smaller, understanding the mechanical properties of these small components was becoming more important. Till present day, the methods and technology used to investigate the deformation behavior in nanoscale were still lacking. In this paper, the specimens …

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Depth Control Method of AFM-Based Nanomachining with Diamond Tip in Deflection Mode

Zhen Hu, Yong Da Yan, Tao Sun, Shen Dong et autres

The equations correlated the normal load and the tip penetration depth were derived through the theoretical analysis of the penetration process of the diamond tip. Verified by experiments, the equations can reflect the penetration process of the scratching machining system and provide …

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Block Copolymer Films Hierarchical Assembly in Confinement

Yong Zhi Cao, Shen Dong, Liang Ying, Tao Sun et autres

Ultrathin block copolymer films are promising candidates for bottom-up nanotemplates in hybrid organic-inorganic electronic, optical, and magnetic devices. Key to many future applications is the long range ordering and precise placement of the phase-separated nanoscale domains. In this paper, a combined top-down/bottom-up …

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Block Copolymer Films Hierarchical Assembly in Confinement

Yong Zhi Cao, Shen Dong, Ying Chun Liang, Tong Sun et autres

This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where …