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12,669 results on '"Huang,Hai"'

70. Supermassive primordial black holes in multiverse: for nano-Hertz gravitational wave and high-redshift JWST galaxies

Author

Huang, Hai-Long, Cai, Yong, Jiang, Jun-Qian, Zhang, Jun, and Piao, Yun-Song

Subjects
General Relativity and Quantum Cosmology, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Theory
Abstract

Recently, observational hints for supermassive black holes have been accumulating, which has inspired ones to wonder: Can primordial black holes (PBHs) be supermassive, in particular with the mass $M\gtrsim 10^{9}M_\odot$? A supercritical bubble (with an inflating baby universe inside it) that nucleated during inflation can develop into a PBH in our observable Universe. Here, we find that when the inflaton slowly passes by a neighboring vacuum, the nucleating rate of supercritical bubbles would inevitably attain a peak, so the mass distribution of multiverse PBHs, and the mass of peak can be up to $M\gtrsim 10^{11}M_\odot$. Thus our mechanism naturally provides a primordial origin of supermassive BHs., Comment: 15 pages, 4 figures

Published
2023

73. Parallel Computing Based Solution for Reliability-Constrained Distribution Network Planning

Author

Sun, Yaqi, Wu, Wenchuan, Lin, Yi, Huang, Hai, and Chen, Hao

Subjects
Electrical Engineering and Systems Science - Systems and Control
Abstract

The main goal of distribution network (DN) expansion planning is essentially to achieve minimal investment constrained with specified reliability requirements. The reliability-constrained distribution network planning (RcDNP) problem can be cast an instance of mixed-integer linear programming (MILP) which involves ultra-heavy computation burden especially for large scale DNs. In this paper, we propose a parallel computing-based acceleration algorithm for solve RcDNP problem. The RcDNP is decomposed into a backbone grid and several lateral grid problems with coordination. Then a parallelizable augmented Lagrangian algorithm with acceleration strategy is developed to solve the coordination planning problems. In this method, the lateral grid problems are solved in parallel through coordinating with the backbone grid planning problem. To address the presence of nonconvexity, Gauss-Seidel iteration is adopted on the convex hull of the feasible region constructed by the decomposition method. Under mild conditions, the optimality and convergence of this algorithm is proven. The numerical tests show the proposed method can significantly reduce the computation time and make the RcDNP applicable for real-world problems.

Published
2023

74. Convergence and Divergence: A New Paradigm for Pedestrian Detection

Author

Zhu, Yueyan, Huang, Hai, Yue, Shan, Zhang, Shu, Chen, Aoran, 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 Zhang, Qinhu, editor

Published
2024
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75. Physicochemical Remediation of Soil Contamination: From Laboratory to Field

Author

Wang, Hanwen, Zhang, Jingqi, Huang, Hai, Wang, Xingrun, Yang, Xiaojin, Coulon, Frederic, de Boer, Jacob, Editorial Board Member, Barceló, Damià, Series Editor, Garrigues, Philippe, Editorial Board Member, Kostianoy, Andrey G., Series Editor, Gu, Ji-Dong, Editorial Board Member, Hutzinger, Otto, Founding Editor, Jones, Kevin C., Editorial Board Member, Negm, Abdelazim M., Editorial Board Member, Newton, Alice, Editorial Board Member, Nghiem, Duc Long, Editorial Board Member, Garcia-Segura, Sergi, Editorial Board Member, Verlicchi, Paola, Editorial Board Member, Wagner, Stephan, Editorial Board Member, Rocha-Santos, Teresa, Editorial Board Member, Picó, Yolanda, Editorial Board Member, Ortega-Calvo, Jose Julio, editor, and Coulon, Frederic, editor

Published
2024
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76. A High-Speed UUVs Search Trajectory Planning Scheme with a Target Distribution Fitting Method

Author

Wang, Zhong, Yang, Jianan, Lv, Jianguo, Yang, Guanjinzi, Lv, Rui, Huang, Hai, Fan, Hui, 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, Hirche, Sandra, 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, Li, Xiaoduo, editor, Song, Xun, editor, and Zhou, Yingjiang, editor

Published
2024
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77. Random Mask Perturbation Based Explainable Method of Graph Neural Networks

Author

Yang, Xinyue, Huang, Hai, Zuo, Xingquan, Goos, Gerhard, Founding 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, Yang, De-Nian, editor, Xie, Xing, editor, Tseng, Vincent S., editor, Pei, Jian, editor, Huang, Jen-Wei, editor, and Lin, Jerry Chun-Wei, editor

Published
2024
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78. Intelligent Control Method of Indoor Physical Environment in Atrium Under Social Information Network

Author

Huang, Hai, Shi, Linmei, Zhou, Xian, 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, Yun, Lin, editor, Han, Jiang, editor, and Han, Yu, editor

Published
2024
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79. A Data Mining and Processing Method for E-Commerce Potential Customers Based on Apriori Association Rules Algorithm

Author

Zhou, Xian, Huang, Hai, 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, Yun, Lin, editor, Han, Jiang, editor, and Han, Yu, editor

Published
2024
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83. Design of an AUV Underwater Magnetic Resonant Wireless Power Transfer System

Author

Wang, Zhaoqun, Huang, Hai, Sun, Yize, Zhang, Lingqi, Zhang, Yunfei, 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, Tan, Kay Chen, Series Editor, Cai, Chunwei, editor, Qu, Xiaohui, editor, Mai, Ruikun, editor, Zhang, Pengcheng, editor, Chai, Wenping, editor, and Wu, Shuai, editor

Published
2024
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86. Verification of a FSEC Racing Car Cooling System Model

Author

Huang, Hai, Zhen, Junwei, China Society of Automotive Engineers, 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, and Tan, Kay Chen, Series Editor

Published
2024
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87. Thermoelectric properties of Janus BiXI (X = S and Se) monolayers: A first-principles study.

Author

Xiong, Guo-huan, Liu, Te, Huang, Hai-hong, and Wang, Jian

Subjects
THERMOELECTRIC conversion, THERMOELECTRIC materials, SEEBECK coefficient, TRANSPORT theory, ELECTRIC conductivity
Abstract

Janus monolayers, a novel class of two-dimensional materials, have attracted significant interest owing to their asymmetric atomic arrangement. In this work, we systematically investigate the thermoelectric properties of Janus BiXI (X = S and Se) monolayers, using first-principles calculations and semiclassical Boltzmann transport theory. These dynamically stable BiSI and BiSeI monolayers exhibit indirect bandgaps of 0.870 and 0.797 eV, respectively, when accounting for the spin–orbit coupling effects. The Janus BiSeI monolayer exhibits a lower lattice thermal conductivity of 0.168 W/mK at 300 K, attributed to the increased phonon-scattering channels and enhanced anharmonicity introduced by the heavier Se atom. Furthermore, the Janus BiSeI monolayer demonstrates a superior Seebeck coefficient and high electrical conductivity, resulting in a significantly enhanced power factor. Consequently, the Janus BiSeI monolayer exhibits a higher figure of merit (ZT) value, with 0.895 at 300 K and 2.466 at 700 K, compared to the Janus BiSI monolayer, which has ZT values of 0.158 at 300 K and 0.591 at 700 K. These findings establish the Janus BiSeI monolayer as an excellent candidate for thermoelectric conversion applications. The understanding may have broader implications for the exploration of 2D thermoelectric materials. [ABSTRACT FROM AUTHOR]

Published
2024
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88. On primordial universe in anti-de Sitter landscape

Author

Lin, Pu-Xin, Huang, Hai-Long, Zhang, Jun, and Piao, Yun-Song

Subjects
General Relativity and Quantum Cosmology, High Energy Physics - Theory
Abstract

How the spacetime evolved non-perturbatively in a landscape with multiple anti-de Sitter (AdS) vacua, which is theoretically well-motivated, has always been a matter of concern. As a step towards this issue, we perform (3+1)D numerical relativity simulations for the inhomogeneous universe in an AdS landscape, and find that large inhomogeneity of scalar field can develop into not only sphere-like bubbles, but also novel tube-like structures. It is observed that the bubble or tube wall (across the potential barrier) likely inflates as a quasi-dS space, while the different regions separated by the walls are in different AdS vacua and will collapse towards singularity., Comment: 7 pages, 6 figures + references

Published
2022
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95. Effect of Cr2O3 on properties of ZnO-Bi2O3 based high-voltage varistor ceramics

Author

GUI Yanghai, TU Yuansheng, TIAN Kuan, GUO Huishi, HUANG Hai, and ZHANG Xinhua

Subjects
zno varistor ceramic, cr2o3 doping, microstructure, electrical property, impedance property, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

ZnO-Bi2O3-Co2O3-NiO-Mn3O4-SiO2-Cr2O3 varistor ceramics were prepared by solid-phase sintering method.The effects of different doping amounts of Cr2O3 on the microstructure and electrical properties of ZnO varistor ceramics were investigated, and the phases, microstructures and electrical properties of samples were characterized. The results indicate that the addition of Cr2O3 effectively inhibits the abnormal growth of ZnO grains, enhances the uniformity of grain distribution, reduces the ZnO grain resistance and increases the grain boundary resistance.In the range of 0%-0.21% (molar fraction, the same below) of Cr2O3 addition, the nonlinear coefficient of the varistor ceramics increases first and then decreases as the addition amount increases. When the Cr2O3 doping amount is 0.14%, the ZnO varistor ceramics exhibit excellent electrical properties, with a potential gradient E1 mA=216 V·mm-1, leakage current JL=0.36 μA·cm-2, nonlinear coefficient α=25, residual voltage ratio K=1.815, and aging coefficient Kct=0.647. In addition, the initial U1 mA value of varistor ceramics still maintains 96.75% after impacted by 100 kA pulse current twice with 4/10 μs waveform. The Cr2O3 doped ZnO varistor ceramics demonstrate excellent impulse stability and significant application potential for lightning arresters of power distribution systems.

Published
2024
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96. On the Privacy Risks of Cell-Based NAS Architectures

Author

Huang, Hai, Zhang, Zhikun, Shen, Yun, Backes, Michael, Li, Qi, and Zhang, Yang

Subjects
Computer Science - Cryptography and Security, Computer Science - Machine Learning
Abstract

Existing studies on neural architecture search (NAS) mainly focus on efficiently and effectively searching for network architectures with better performance. Little progress has been made to systematically understand if the NAS-searched architectures are robust to privacy attacks while abundant work has already shown that human-designed architectures are prone to privacy attacks. In this paper, we fill this gap and systematically measure the privacy risks of NAS architectures. Leveraging the insights from our measurement study, we further explore the cell patterns of cell-based NAS architectures and evaluate how the cell patterns affect the privacy risks of NAS-searched architectures. Through extensive experiments, we shed light on how to design robust NAS architectures against privacy attacks, and also offer a general methodology to understand the hidden correlation between the NAS-searched architectures and other privacy risks., Comment: Accepted by CCS 2022

Published
2022
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97. Density-driven higher-order topological phase transitions in amorphous solids

Author

Peng, Tan, Hua, Chun-Bo, Chen, Rui, Liu, Zheng-Rong, Huang, Hai-Ming, and Zhou, Bin

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Amorphous topological states, which are independent of the specific spatial distribution of microscopic constructions, have gained much attention. Recently, higher-order topological insulators, which are a new class of topological phases of matter, have been proposed in amorphous systems. Here, we propose a density-driven higher-order topological phase transition in a two-dimensional amorphous system. We demonstrate that the amorphous system hosts a topological trivial phase at low density. With an increase in the density of lattice sites, the topological trivial phase converts to a higher-order topological phase characterized by a quantized quadrupole moment and the existence of topological corner states. Furthermore, we confirm that the density-driven higher-order topological phase transition is size dependent. In addition, our results should be general and equally applicable to three-dimensional amorphous systems. Our findings may greatly enrich the study of higher-order topological states in amorphous systems.

Published
2022
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