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1,951 results on '"Zhang, Jianbin"'

4. Research on Evaluation Method of Distribution Network Loss Reduction Potential Based on Spatial Distance

Author

Zhang, Jianbin, Wang, Lei, Xi, Zhenhua, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Tan, Kay Chen, Series Editor, Chen, Zhe, editor, Yang, Wenming, editor, and Chen, Hao, editor

Published
2024
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10. Preparation and frictional wear property of AlCrNiFeTi high-entropy alloy coatings by electric spark deposition

Author

ZHANG Jianbin, NAN Zhiyuan, ZHU Cheng, and GUO Xin

Subjects
electro-spark deposition, high-entropy alloy, alcrnifeti coating, 304 stainless steel, microstructure, friction and wear, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

AlCrNiFeTi high-entropy alloy (HEA) with a diameter of 7 mm was prepared as electrode by vacuum arc melting method, and AlCrNiFeTi high-entropy alloy coating was successfully prepared on the surface of 304 stainless steel by using electric spark deposition technology. The microstructure and friction and wear properties of the coatings were studied by XRD, OM, EDS, SEM, microhardness tester and friction and wear tester. The results show that both the AlCrNiFeTi electrode and the coating are dominated by BCC1 and BCC2 simple solid solutions, and the microstructure of the electrode is typical of dendrites. The coating is formed by stacking and spreading of deposition points, and the surface is uniform and dense as orange peel, convex and concave, unfolding for sputtering pattern, and there is no macroscopic defects in the coating cross-section structure, and the thickness is about 59.67 μm.The maximal microhardness of AlCrNiFeTi coating is 587.3HV0.2, which is about 2.45 times higher than that of the base material. As the load increases, the wear mechanism of the coating changes from oxidized wear and slight abrasive wear to abrasive and adhesive wear. When the friction load is 5 N, the wear rate is 1.213×10-3 mm3/(N·m), and the friction coefficient is only 0.446. The wear rate of the coating decreases by about 28.3% compared with that of the substrate.

Published
2024
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40. Application of Network Course Platform Based on Cloud Computing in Physical Education

Author

Zhang, Jianbin, Akan, Ozgur, Editorial Board Member, Bellavista, Paolo, Editorial Board Member, Cao, Jiannong, Editorial Board Member, Coulson, Geoffrey, Editorial Board Member, Dressler, Falko, Editorial Board Member, Ferrari, Domenico, Editorial Board Member, Gerla, Mario, Editorial Board Member, Kobayashi, Hisashi, Editorial Board Member, Palazzo, Sergio, Editorial Board Member, Sahni, Sartaj, Editorial Board Member, Shen, Xuemin, Editorial Board Member, Stan, Mircea, Editorial Board Member, Jia, Xiaohua, Editorial Board Member, Zomaya, Albert Y., Editorial Board Member, Jan, Mian Ahmad, editor, and Khan, Fazlullah, editor

Published
2023
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41. On extremal cacti with respect to the first degree-based entropy

Author

Li Weimin, Li Jianping, Zhang Jianbin, and He Weihua

Subjects
graph entropy, cactus, first degree-based entropy, 05c50, Mathematics, QA1-939
Abstract

Let GG be a simple graph with degree sequence D(G)=(d1,d2,…,dn)D\left(G)=\left({d}_{1},{d}_{2},\ldots ,{d}_{n}). The first degree-based entropy of GG is defined as I1(G)=ln∑i=1ndi−1∑i=1ndi∑i=1n(dilndi){I}_{1}\left(G)=\mathrm{ln}{\sum }_{i=1}^{n}{d}_{i}-\frac{1}{{\sum }_{i=1}^{n}{d}_{i}}{\sum }_{i=1}^{n}\left({d}_{i}\mathrm{ln}{d}_{i}). In this article, we give sharp upper and lower bounds for the first degree-based entropy of graphs in C(n,k){\mathcal{C}}\left(n,k) and characterize the corresponding extremal graphs when each bound is attained, where C(n,k){\mathcal{C}}\left(n,k) is the set of all cacti with nn vertices and kk cycles.

Published
2023
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