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5. Multi-mode Graph Attention-Based Anomaly Detection on Attributed Networks

Author

Lu, Yanjun, Liu, Haonan, Zhang, Xiaoqin, Yang, Jionghua, Feng, Luhua, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Huang, De-Shuang, editor, Zhang, Chuanlei, editor, and Chen, Wei, editor

Published
2024
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6. TCGA: A Grid-Tagging NER Model Enhanced by Fusing Position and Region Information

Author

Lu, Yanjun, Yang, Jionghua, Zhang, Xiaoqin, Feng, Luhua, Liu, Haonan, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Huang, De-Shuang, editor, Si, Zhanjun, editor, and Zhang, Chuanlei, editor

Published
2024
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43. EDM-Grinding composite machining and drilling of polycrystalline diamond tool.

Author

Ye, Yonghui, Wang, Lijun, Mo, Rui, and Lu, Yanjun

Subjects
BORING & drilling (Earth & rocks), INDUSTRIAL diamonds, OPEN-circuit voltage, SURFACE roughness, WEAR resistance, ELECTRIC metal-cutting
Abstract

Polycrystalline diamond (PCD) is widely used for micro tools due to its high hardness and wear resistance. However, micro PCD tools face challenges in machining with high accuracy and efficiency. Therefore, electrical discharge machining grinding (EDM-grinding) composite machining was proposed. The effects of pulse discharge parameters on surface quality and microhole drilling performance of PCD tool were investigated. The results show that the surface roughness of helix flute and flank face of the fabricated PCD tool were 0.125 µm and 0.158 µm, respectively, as well as the inner wall roughness achieved 0.331 µm after drilling of microhole. The average current displayed a greater effect on the machining quality of PCD tools, with tool breakage in excessive average current. The preferred pulse discharge parameters were determined as an open-circuit voltage of 95 V, an average current of 1400 mA, a pulse width of 400 ns, and a pulse interval of 2000 ns. [ABSTRACT FROM AUTHOR]

Published
2024
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44. Thermal Elastohydrodynamic Lubrication of Line Contact Considering the Thermal Elastic Deformation

Author

Lu, Zunyou, Lu, Yanjun, Zhang, Yongfang, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, WU, C. H., editor, PATNAIK, Srikanta, editor, POPENTIU VLÃDICESCU, Florin, editor, and NAKAMATSU, Kazumi, editor

Published
2021
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49. Hydrophilic modification of PVDF membranes by in situ synthesis of nano-Ag with nano-ZrO2

Author

Lu Yanjun, Ma Yuxuan, Yang Tong, and Guo Jifeng

Subjects
hydrophilic modification, pvdf membrane, in situ synthesis, ag with zirconium dioxide nanoparticles, antifouling, Chemistry, QD1-999
Abstract

Modified polyvinylidene fluoride (PVDF) membranes were prepared by the phase inversion method via blending in situ formed nanosilver (Ag) and nanozirconium dioxide (ZrO2). Scanning electron microscopy of the membranes revealed that the surface pore size of the membranes was increased and distributed widely with the addition of modified nanosilver (Ag) and nanozirconium dioxide (ZrO2). The pores of the membrane were reduced due to excessive modification of the material when the content of zirconium dioxide was increased to 0.4%. XRD characterization showed that in situ synthesis of nanosilver (Ag) and nanozirconium dioxide (ZrO2) had been successfully blended in the membranes. The contact angle of the modified membrane ranged from 82.72° to 67.37°, which showed that the hydrophilic properties of the membrane were improved. The pure water flux of the modified membrane increased from 28.43 to 143.2 L/m2 h, indicating that the hydrophilicity of the modified membrane was enhanced significantly. The flux recovery rate of the modified membrane was obviously increased in the fouling experiment with BSA as the source of organic pollutants. The antimicrobial contamination of the membrane was greatly enhanced with the E. coli microbial contamination experiment.

Published
2021
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