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4,316 results on '"Pan, Bo"'

109. An Intelligent QoS Algorithm for Home Networks

Author

Hwang, Wen-Jyi, Tai, Tsung-Ming, Pan, Bo-Ting, Lou, Tun-Yao, and Jhang, Yun-Jie

Subjects
Computer Science - Networking and Internet Architecture, Computer Science - Machine Learning
Abstract

A novel quality of service (QoS) management algorithm for home networks is presented in this letter. The algorithm is based on service prediction for intelligent QoS management. The service prediction is carried out by a general regression neural network with a profile containing the past records of the service. A novel profile updating technique is proposed so that the profile size can remain small for fast bandwidth allocation. The analytical study and experiments over real LAN reveal that the proposed algorithm provides reliable QoS management for home networks with low computational overhead.

Published
2020

110. China's innovation challenge : evidence from industry competition, government subsidies and political turnover

Author

Pan, Bo, Yang, Junhong, Yin, Shuxing, and Tunyi, Abongeh

Abstract

In this thesis, we investigate the challenge of corporate innovation in China from three aspects: industry competition, government subsidies, and political turnover. Our study enriches the related literature on innovation in the Chinese context by using a large panel of industrial firms. In chapter 2, we investigate the effect of industry competition on corporate innovation. Using a panel of 555,124 industrial firms over the period from 1998 to 2007, we find that firm-level innovation is negatively associated with industry competition, and the negative relation is stronger in industries that are more dependent on external finance. Further evidence shows that financing constraints tighten the negative effect of competition on innovation. Our study provides clear identification of a causal effect of competition on innovation by using a difference-in-differences (DID) approach that relies on a plausibly exogenous shift in industrial openness to foreign investment and employing instrumental variables (IV) approach that relies on a time-varying instrument for industry competition. In chapter 3, we explore the impact of government subsidies on corporate innovation. Using a panel of 663,699 industrial firms over the period from 1998 to 2008, we find that government subsidies have a positive direct effect on corporate innovation. I confirm the causal effect of subsidies on innovation by using an IV estimation and a DID specification. The positive direct effect is more pronounced for private firms, financially constrained firms, firms in industries with low external finance dependence (EFD) or high-tech intensiveness, and firms located in cities with low financial development or low foreign direct investment. Furthermore, subsidies have a greater positive indirect effect on innovation activities for firms without subsidies than firms with subsidies. The paper sheds light on the implications of subsidies in innovation. In chapter 4, we focus on the influence of political turnover on the finance-innovation nexus. Using a panel of 739,672 industrial firms across 305 cities over the period from 2003 to 2014, we find that local political uncertainty arising from local political turnover decreases the positive effect of city-level financial development on corporate innovation while local political turnover alone promotes corporate innovation. The results are robust to the use of various estimation methods. Further evidence shows that the moderating effect played by local political turnover is various across turnover types, political connections, and financial constraints. Our findings shed light on how both political and financial systems influence corporate innovation in China with a weak institutional environment.

Published
2021

111. Crystal structure of (E)-3-(3-methoxybenzylidene)benzofuran-2(3H)-one, C16H12O3

Author

Zheng Liang Liang, Liu Xiong Li, Dong Zhang Chao, Shi Yang, Pan Bo Wen, and Feng Ting Ting

Subjects
2254177, Physics, QC1-999, Crystallography, QD901-999
Abstract

C16H12O3, monoclinic, P21/c (no. 14), a = 10.9636(14) Å, b = 12.1767(12) Å, c = 10.1557(13) Å, β = 116.588(16)°, V = 1212.4(3) Å3, Z = 4, Rgt (F) = 0.0366, wR ref(F 2) = 0.1019, T = 250.00(10) K.

Published
2023
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112. Synthesis and crystal structure of (S,E)-4-hydroxy-3-(2-((4aR,6aS,7R,10aS,10bR)-3,3,6a,10b-tetramethyl-8-methylenedecahydro-1H-naphtho[2,1-d][1,3]dioxin-7-yl)ethylidene)dihydrofuran-2(3H)-one, C23H34O5

Author

Li Shi-Qing, Zhou Jian, Dong Zhang-Chao, Pan Bo Wen, Shi Yang, and Zhou Ying

Subjects
2254956, Physics, QC1-999, Crystallography, QD901-999
Abstract

C23H34O5, orthorhombic, P212121 (no. 19), a = 11.1838(3) Å, b = 11.7824(3) Å, c = 16.3160(5) Å, V = 2149.99(10) Å3, Z = 4, Rgt ${R}_{\mathrm{g}\mathrm{t}}$ (F) = 0.0399, wRref $w{R}_{\mathrm{r}\mathrm{e}\mathrm{f}}$ (F 2) = 0.1097, T = 293 K.

Published
2023
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144. Superconductivity in Bi3O2S2Cl with Bi-Cl Planar Layers

Author

Ruan, Bin-Bin, Zhao, Kang, Mu, Qing-Ge, Pan, Bo-Jin, Liu, Tong, Yang, Huai-Xin, Li, Jian-Qi, Chen, Gen-Fu, and Ren, Zhi-An

Subjects
Condensed Matter - Superconductivity, Condensed Matter - Materials Science
Abstract

A quaternary compound Bi3O2S2Cl, which consists of novel [BiS2Cl]2-layers, is reported. It adopts a layered structure of the space group I4/mmm (No. 139) with lattice parameters: a = 3.927(1) {\AA}, c = 21.720(5) {\AA}. In this compound, bismuth and chlorine atoms form an infinite planar layer, which is unique among the bismuth halides. Superconductivity is observed in both polycrystals and single crystals, and is significantly enhanced in the samples prepared with less sulfur or at higher temperatures. By tuning the content of sulfur, Bi3O2S2Cl can be converted from a semiconductor into a superconductor. The superconducting critical temperature ranges from 2.6 K to 3.5 K. Our discovery of the [BiS2Cl]2- layer opens another door in searching for the bismuth compounds with novel physical properties., Comment: 15 pages

Published
2019
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