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1,290 results on '"Wang, Zhidong"'

26. Error Selection Based Training of Fully Complex-Valued Dendritic Neuron Model

Author

Wang, Zhidong, Wang, Yuelin, Huang, He, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, 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, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, and Deng, Zhidong, editor

Published
2023
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33. Research progress on regulatory mechanisms of circular RNA nuclear receptor interacting protein 1 in tumor occurrence and development

Author

GAO Xin, YU Yongbo, WANG Haicun, JIANG Xingming, WANG Zhidong

Subjects
circular rna, circular rna nuclear receptor interacting protein 1(circ_nrip1), tumor occurrence and development, regulatory mechanism, Medicine
Abstract

Circular RNA (circRNA) is a class of single-stranded covalently closed non-coding RNA molecules widely expressed in eukaryotic cells. Recent studies have found that circRNA has been involved in modulating biological processes such as cell proliferation, differentiation, and apoptosis so it is the key regulator of tumor occurrence and development. Circular RNA nuclear receptor interacting protein 1(circ_NRIP1), as a circular RNA, is abnormally expressed in various human cancers and potentially regulates malignant biological behaviors such as tumor proliferation, invasion and migration. Elucidating the regulatory mechanisms of circ_NRIP1 in tumor occurrence and development may provide a new strategy for tumor diagnosis and treatment.

Published
2023
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34. Quantum Efficiency Enhancement by Mie Resonance from GaAs Photocathodes Structured with Surface Nanopillar Arrays

Author

Peng, Xincun, Wang, Zhidong, Liu, Yun, Manos, Dennis M., Poelker, Matt, Stutzman, Marcy, Tang, Bin, Zhang, Shukui, and Zou, Jijun

Subjects
Physics - Optics, Physics - Applied Physics
Abstract

A new type of negative electron affinity (NEA) photocathode based on GaAs nanopillar array (NPA) Mie-type resonators was demonstrated for the first time. For visible wavelengths, the Mie resonances in GaAs NPA reduced light reflectivity to less than 6 percent compared to a typical value great then 35 percent. Other benefits of NPA resonators include an enhanced density of optical states due to increased light concentration and increased electron emission area. These features resulted in improved photoemission performance at the resonance wavelength demonstrating maximum quantum efficiency 3.5 times greater than a GaAs wafer photocathode without the NPA structure. This optically dark photocathode (sub-percentage light reflectance over visible wavelengths) but possessing electrically high-brightness (enhanced electron emission) provides new opportunities for practical applications such as large-scale electron accelerators, high-resolution night-vision imaging and low energy electron microscopy.

Published
2019

42. Research on optimization of blended-wing-body underwater glider based on combined optimization algorithm

Author

LING Hongjie, WANG Zhidong, ZHANG Bei, ZHANG Daiyu, and AN Shuai

Subjects
翼身融合水下滑翔机, 水动力评估, 参数化建模, 组合优化算法, Motor vehicles. Aeronautics. Astronautics, TL1-4050
Abstract

为实现水下滑翔机低功耗、长航程的目标, 提高水下滑翔机升阻比是切实可行的手段之一。采用翼身融合布局设计了一款翼身融合水下滑翔机(blended-wing-body underwater glider, BWBUG), 利用NURBS样条曲线构建BWBUG的精细化参数模型, 以升阻比为优化目标, 运用组合优化算法, 开展BWBUG的多参数优化研究, 建立优化算法与黏流软件接口, 优化过程中直接耦合调用水动力计算, 大大提高了优化效率。结果表明, 优化后的BWBUG模型升力系数提升了0.58%, 阻力系数降低了10.22%, 升阻比提升12.01%, 水动力综合性能提升11.99%。文中所建立的优化方法对提高水下航行器构型优化具有重要的指导意义。

Published
2022
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46. A study on relationships between measured crustal stresses and depth based on spherical shell model

Author

Liu Bingquan, Li Liyun, Wei Mengxi, Wang Bonan, and Wang Zhidong

Subjects
in-situ stress, spherical shell model, varying body force, internal pressure, physical parameter fitting, Engineering geology. Rock mechanics. Soil mechanics. Underground construction, TA703-712, Mining engineering. Metallurgy, TN1-997
Abstract

Due to the exploitation of mineral resources in the deep underground space, it is more and more important to study the variation trend of deep in-situ stress field. In recent years the researches have updated many in-situ stress data. It is necessary to improve the existing estimation methods on this account. Based on the basic theory of elasticity and spherical shell model, this paper studied the effect of gravitational body force varying with depth and internal pressure, and obtained the theoretical formula of macro in-situ stress distribution; Employing the latest and widely distributed measured data, this paper fitted the crustal physical parameters in the theoretical formula, and obtained the fitting formula of vertical in-situ stress and average horizontal in-situ stress varying with depth. The results show that: the distribution of crustal stresses with depth is no longer linear on the macroscopic scale of the Earth; however, within the current depth range of human activities, basically the average in-situ stresses vary linearly with depth, which is closest to the results of the Dinnick hypothesis at γ=22 kN/m3 and λ=0.9; with the increase of depth, the average lateral pressure coefficient gradually approaches 1, which is closer to the measured data than the envelope proposed by Brown and Hoek; the high pressure in the crust will cause horizontal tensile stress, but the compressive stress generated by gravity is higher and therefore the vertical and horizontal in-situ stress in the whole crust are compressive stress. The research results provide a theoretical prediction model for the estimation of crustal stress distribution trend, especially in deep underground space.

Published
2022
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47. SAT-077 Prevention of hepatic encephalopathy after transjugular intrahepatic portosystemic shunt by live combined Bifidobacterium and Lactobacillus tablets: a randomized controlled trial

Author

Li, Ying, primary, Quan, Xin, additional, Ye, Xiuling, additional, Wei, Bo, additional, Tong, Huan, additional, Wang, Zhidong, additional, Tai, Yang, additional, Zhang, Linhao, additional, Gan, Can, additional, Qian, Shuaijie, additional, Guo, Xu, additional, and Wu, Hao, additional

Published
2024
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