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Long Wave Reflection and Transmission over A Sloping Step

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海洋工程：英文版 2004年第3期18卷 371-380页

作者： Hsien-kuo CHANG Jin-Cheng LIOU Department of Civil Engineering National Chiao Tung University 1001 Ta Hsuech Road Hsinchu 300 ChinaDepartment of Civil Engineering National Chiao Tung University 1001 Ta Hsuech Road Hsinchu 300 China

This investigation examines long wave reflection and transmission induced by a sloping step. Bellman and Kalaba's (1959) invariant imbedding is introduced to find wave reflection. An alternative method matching both the surface elevation and its surface slope of each region at the junction is applied to the determination of wave reflection and transmission. The proposed methods are compared with the accurate numerical results of Porter and Porter (2000) and those of Mei (1983) for a vertical step. The wave reflection obtained for a mildly sloping step differs significantly from the result of Mei. The wave reflection is found to fluctuate owing to wave trapping for the mild sloping step. The height and the face slope of the step are important for determining wave reflection and transmission coefficients.

关键词： long wave reflection coefficient wave transmission wave trapping

Energy harvesting technology for AC overhead insulated transmission line based on electric field induction

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High Voltage 2024年第4期9卷 816-825页

作者： Le Zhou Hongwei Liu Kun Zuo kuo Shang School of Electrical and Electronic Engineering North China Electric Power UniversityBeijingChina Electric Power Company of Sichuan Province Tianfu Power Supply Company ChengduSichuanChina Changde Power Supply Branch State Grid Hunan Electric Power Company LimitedChangdeHunanChina

To solve the problem of the energy harvesting(EEH)effect of the condition monitoring devices power supply on the transmission line is not *** authors designed three kinds of EEH schemes based on AC electric field induction,which can effectively improve the output power of load power *** EEH principle of each scheme was analysed in detail,and the influence factors such as the shape of outer energy harvester,capacitance compensation and impedance matching characteristics were ***,the experiment showed that 140.9 mW of power was obtained in direct-mode field EEH when the line voltage level was 10 *** high-potential field EEH mode obtained 4.1 mW of *** harvesting effect of the inner energy harvester with the same potential as the aluminium wire was obviously better,and 30.7 mW of power was ***,based on the third mode,when the load resistance was 2200Ω,the rectifier received 23.7 mW DC *** experimental results are in agreement with the theoretical analysis,which verifies the effectiveness of the electric field induction power supply technology.

关键词： field harvesting mode

A Note on Weighted Composition Operators on the Weighted Bergman Space

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Acta Mathematica Sinica,English Series 2015年第6期31卷 947-952页

作者： Lian kuo ZHAO Sheng Zhao HOU School of Mathematics and Computer Science Shanxi Normal University School of Mathematics Science Soochow University

This paper gives a note on weighted composition operators on the weighted Bergman space, which shows that for a fixed composition symbol, the weighted composition operators are bounded on the weighted Bergman space on... 详细信息

关键词： Weighted Bergman space weighted composition operator boundedness finite Blaschke product

hB1F and HNF1 work syner-gistically in the regulation of the function of HBV ENⅡ

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Chinese Science Bulletin 2001年第2期46卷 133-136页

作者： Cai, YN Li, M Zhou, Q Kong, yy Wang, Y Chinese Acad Sci Shanghai Inst Biochem Shanghai 200031 Peoples R China

Human B1 binding factor (hB1F) is a novel transcription factor cloned in our laboratory, which has the capacity of binding the Bl region of HBV enhancer Ⅱ (EN Ⅱ) and stimulating its activity. In this report, the functional relationship between hBlF and other liver-enriched activators of EN Ⅱ was investigated. The results of CAT assay indicated that there was only additive effect between hB1F and HNF4 as well as HNF3β. On the contrary, the presence of both hBlF and HNF1 would result in significant functional synergism. Further GST pull down assay indicated that hBlF could interact with HNFl directly in vitro. This study provides the evidence that hB1F and HNF1 work syn-ergistically in the regulation of the activity of HBV EN Ⅱ.

关键词： hepatitis B virus (HBV) hB1F HNF1 GST pull down synergism.

Liuweiwuling tablets protect against acetaminophen hepatotoxicity: What is the protective mechanism?

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World Journal of Gastroenterology 2016年第11期22卷 3302-3304页

作者： kuo Du Hartmut Jaeschke Department of Pharmacology Toxicology and TherapeuticsUniversity of Kansas Medical Center

Study of the effects of natural products, including traditional Chinese Medicines, on acetaminophen hepatotoxicity has gained considerable popularity in recent years, and some of them showed positive results and even promising therapeutic potentials. A recent report suggested that Liuweiwuling tablets protect against acetaminophen hepatotoxicity and promote liver regeneration in a rodent model through alleviating the inflammatory response. However, several concerns exist regarding the limitations of the experimental design and interpretation of the data presented in this manuscript.

关键词： Acetaminophen hepatotoxicity Liuweiwuling Sterile inflammation Natural products Liver regeneration

Feed-Forward Active Noise Control System Using Microphone Array

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IEEE/CAA Journal of Automatica Sinica 2018年第5期5卷 946-952页

作者： Yang Li Lichuan Liu Sen M.kuo IEEE Northen Illinois University

Feedforward active noise control(ANC)system are widely used to reduce the wide-band noise in different *** feedforward ANC systems,when the noise source is unknown,the misplacement of the reference microphone may violate the causality *** present a performance analysis of the feedforward ANC system under a noncausal *** ANC system performance degrades when the degree of noncausality *** research applies the microphone array technique to feedforward ANC systems to solve the unknown noise source *** generalized cross-correlation(GCC)and steering response power(SRP)methods based on microphone array are used to estimate the noise source ***,the ANC system selects the proper reference microphone for a noise control *** simulation and experiment results show that the SRP method can estimate the noise source direction with 84%*** proposed microphone array integrated ANC system can dramatically improve the system performance.

关键词： Active noise control causality direction estimation generalized cross-correlation(GCC) microphone-array noise pollution noise source steering response power(SRP)

Properties of the Measurement Phase Operator in Dual-Mode Entangle Coherent States

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Chinese Physics Letters 2011年第6期28卷 122-125页

作者： HOU Shen-Yong YANG kuo Department of Mathematics Yangtse River Normal UniversityChongqing 408003 Department of Physics A'ba Teachers CollegeChengdu 611741

A class of measurement phase operators of dual-mode is defined and their properties in a class of entangle coherent states are *** results indicate that the entangle coherent states display some non-classical squeezed... 详细信息

关键词： angle coherent operators

Kinetic study on the reaction between CO_2-CO and wustite using the isotope exchange method

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International Journal of Minerals,Metallurgy and Materials 2013年第2期20卷 125-130页

作者： Teng Zhang Xiao-jun Hu kuo-Chih Chou State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

To investigate the reaction between CO2-CO and wustite using the isotope exchange method at 1073, 1173, 1273, and 1373 K, the experiment apparatus was designed to simulate the fluidized bed. The chemical rate constant was estimated by considering the effect of gas phase mass transfer on the reaction. It is found that the chemical rate constant is inversely decreased with the increase in the ratio of CO2/CO by volume. The activation energy of reaction is in a linear relationship with the ratio of COs/CO by volume, and the average activation energy is 155.37 kJ/mol.

关键词： kinetics isotope exchange rate constants wustite activation energy

Out of sight, out of mind: a distance-aware forgetting strategy for adaptive random testing

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Science China(Information Sciences) 2017年第9期60卷 78-98页

作者： Chengying MAO Tsong Yueh CHEN Fei-Ching kuo School of Software and Communication Engineering Jiangxi University of Finance and Economics Department of Computer Science and Software Engineering Swinburne University of Technology

Adaptive random testing(ART) achieves better failure-detection effectiveness than random testing by increasing the diversity of test cases. However, the intention of ensuring even spread of test cases inevitably causes an overhead problem. Although two basic forgetting strategies(i.e. random forgetting and consecutive retention) were proposed to reduce the computation cost of ART, they only considered the temporal distribution of test cases. In the paper, we presented a distance-aware forgetting strategy for the fixed size candidate set version of ART(DF-FSCS), in which the spatial distribution of test cases is taken into consideration. For a given candidate, the test cases out of its "sight" are ignored to reduce the distance computation cost. At the same time, the dynamic adjustment for partitioning and the second-round forgetting are adopted to ensure the linear complexity of DF-FSCS algorithm. Both simulation analysis and empirical study are employed to investigate the efficiency and effectiveness of DF-FSCS. The experimental results show that DF-FSCS significantly outperforms the classical ART algorithm FSCS-ART in efficiency, and has comparable failure-detection effectiveness. Compared with two basic forgetting methods, DF-FSCS is better in both efficiency and effectiveness. In contrast with a typical linear-time ART algorithm RBCVT-Fast, our algorithm requires less computational overhead and exhibits the similar failure-detection capability. In addition, DF-FSCS has more reliable performance than RBCVT-Fast in detecting failures for the programs with high-dimensional input domain.

关键词： adaptive random testing software testing test cases computational overhead diversity