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染整技术 2007年第1期29卷 34-35,43页

作者：刘志华张建波朱平王炳董朝红青岛大学化学化工和环境学院山东青岛266071

研究了将羊毛织物用稀土铈溶液处理时各种处理条件对稀土铈在羊毛织物上吸附量的影响。结果表明:稀土金属浓度、溶液pH值、温度、交联剂对稀土铈吸附量的影响最大。

关键词：羊毛铈离子吸附

Gas-solid coupling analysis and numerical simulation of the dynamic process of gas drainage

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Journal of Coal Science & Engineering(China) 2013年第2期19卷 187-192页

作者： Kai WANG bo LI jian-ping WEI Peng LI Faculty of Resources and Safety Engineering China University of Mining and Technology (Beijing) Beijing 100083 China Key Lab of Gas Geology and Gas Control Henan Polytechnic University Jiaozuo 454000 China

Based on the basic theory of gas seepage and coal seam deformation, using the numerical simulation method, this paper established the gas-solid coupling model of gas drainage from borehole. Using multi-physical coupling analysis software, the authors studied the stress change conditions around the drainage borehole, the influence of the gas drainage effect caused by the drilling gap, and the gas drainage effect under the conditions of different borehole radius and different permeabilities. The results show that the effective drainage radius is 1.03 m during 30 days of drainage. The effect of the diameter change of the drainage borehole is limited, but the influence of coal seam permeability is much bigger. After the same drainage period, the greater the permeability of coal seam is, the bigger the drainage radius is. For a low permeability coal seam, coal miners should take pressure-relief measures and increase the permeability to improve the drainage effects before draining gas through drilling.

关键词： gas drainage numerical simulation drainage radius stress gas-solid coupling

Congruence Subgroups of Hecke Groups

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Acta Mathematica Sinica,English Series 2009年第6期25卷 931-944页

作者： bo CHEN ping Zhi YUAN School of Science Chongqing Jiaotong University Chongqing 400074 P. R. China School of Mathematics South China Normal University Guangzhou 510631 P. R. China

Hecke groups are an important tool in subgroups of Hecke groups play an important rule investigating functional equations, and congruence in research of the solutions of the Dirichlet series. When q, m are two primes, congruence subgroups and the principal congruence subgroups of level m of the Hecke group H（√q） have been investigated in many papers. In this paper, we generalize these results to the case where q is a positive integer with q ≥ 5, √q ￠ Z and m is a power of an odd prime.

关键词： Hecke group principal congruence subgroup congruence subgroup

A method to study interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel

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International Journal of Minerals,Metallurgy and Materials 2012年第9期19卷 821-826页

作者： Yuan-zhi Zhu jian-ping XU The Key Laboratory of the Ministry of Education of China for Ferrous Metallurgy and Resources Utilization Wuhan University of Science and Technology Wuhan 430081 China School of Materials and Metallurgy Wuhan University of Science and Technology Wuhan 430081 China

A novel diffusion couple method was used to investigate the interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel and its effects on phase transformation at the interface. It is discovered that the content of arsenic has great effect on grain growth and phase transformation at high temperature. When the arsenic content is no more than lwt%, there is no obvious grain growth and no obvious ferrite transitional region formed at the diffusion interface. However, when the arsenic content is no less than 5wt%, the grain grows very rapidly. In addition, the arsenic-enriched ferrite transitional layer forms at the diffusion interface in the hot-rolling process, which results from a slower diffusion rate of arsenic atoms than that of carbon in ferrite.

关键词： low carbon steel alloy steel arsenic diffusion bonding phase transformation grain growth

Efficient quantum private comparison protocol based on one direction discrete quantum walks on the circle

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Chinese Physics B 2022年第5期31卷 150-156页

作者： Jv-Jie Wang Zhao Dou Xiu-bo Chen Yu-ping Lai jian Li Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and TelecommunicationsBeijing 100876China Information Security Center School of Cyberspace SecurityBeijing University of Posts and TelecommunicationsBeijing 100876China

We propose an efficient quantum private comparison protocol firstly based on one direction quantum *** the help of one direction quantum walk,we develop a novel method that allows the semi-honest third party to set a flag to judge the comparing result,which improves the qubit efficiency and the maximum quantity of the participants’secret ***,our protocol can judge the size of the secret messages,not only ***,the quantum walks particle is disentangled in the initial *** only requires a quantum walks operator to move,making our proposed protocol easy to implement and reducing the quantum *** security analysis,we prove that our protocol can withstand well-known attacks and brute-force *** also reveal that our protocol is correct and practical.

关键词： quantum private comparison protocol one direction quantum walks efficiency brute-force attack

A Two-stage Autonomous EV Charging Coordination Method Enabled by Blockchain

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Journal of Modern Power Systems and Clean Energy 2021年第1期9卷 104-113页

作者： jian ping Zheng Yan Sijie Chen Key Laboratory of Control of Power Transmission and Conversion Ministry of Education(Shanghai Jiao Tong University)ShanghaiChina

Increasing electric vehicle(EV) penetration in distribution networks necessitate EV charging coordination. This paper proposes a two-stage EV charging coordination mechanism that frees the distribution system operator(DSO) from extra burdens of EV charging coordination. The first stage ensures that the total charging demand meets facility constraints,and the second stage ensures fair charging welfare allocation while maximizing the total charging welfare via Nash-bargaining trading. A decentralized algorithm based on the alternating direction method of multipliers(ADMM) is proposed to protect individual privacy. The proposed mechanism is implemented on the blockchain to enable trustworthy EV charging coordination in case a third-party coordinator is absent. Simulation results demonstrate the effectiveness and efficiency of the proposed approach.

关键词： Electric vehicle(EV)charging coordination Nash bargaining alternating direction method of multipliers(ADMM) blockchain

High-temperature oxidation behaviour of minor Hf-dopedβ-NiAI single crystals in dry and humid atmospheres

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Rare Metals 2023年第8期42卷 2767-2773页

作者： Kai Yan jian He Hong-bo Guo School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China State Key Laboratory of Virtual Reality Technology and Systems Beihang UniversityBeijing 100191China School of Energy and Power Engineering Beihang UniversityBeijing 100191China School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Oxidation behaviour of undopedβ-NiAl andβ-NiAl-0.05Hf single crystals were investigated at 1100℃in 20 vol%O_(2)+Ar and 15 vol%H2O+Ar,*** contrary to the well-known beneficial effect of Hf additions on the oxidation behaviour of polycrystallineβ-NiAl,severe-scale spallation is observed forβ-NiAl-0.05Hf single-crystal alloy,especially in dry *** is proposed that the presence of the grain boundaries in the polycrystalline substrate enables proper content of Hf segregating at the grain boundaries of the oxide scale and at the scale-substrate interface,which promotes the conditions required for reactive element *** the reactive element effect of Hf does not work,its strong affinity with oxygen will accelerate the process of high-temperature ***,the absence of the grain boundaries as fast diffusion paths partially compromises the adverse influence of water vapour on cyclic oxidation resistance ofβ-NiAl single crystal,resulting in considerable suppression of the oxidation rate and less loss of protection compared with that in dry *** addition,interfacial cavities are observed in dry and humid atmospheres,which may eventually result in the spallation of the oxide scale.

关键词： Oxidation Reactive element Water vapour β-NiAl Grain boundary

Empirical Baye‘’s Method and Roper Resonance State in Very Light Quark Region

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Chinese Physics Letters 2003年第5期20卷 626-628页

作者： DONGShao-Jing ZHANGjian-bo YINGHe-ping ZhejiangInstituteofModernPhysics ZhejiangUniversityhangzhou310027

Based on the Bayesian theorem, an empirical Baye method is discussed. A programming chart for mass spectrum fitting is suggested. Using this method to extract the spectrum, we observe the puzzled Roper resonance state... 详细信息

关键词：贝叶斯定理夸克粒子物理振动光谱分析

Facile tuning of hydrogel properties by manipulating cationic-aromatic monomer sequences

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Science China Chemistry 2021年第9期64卷 1560-1568页

作者： Hailong Fan Yirong Cai jian ping Gong Institute for Chemical Reaction Design and Discovery(WPI-ICReDD) Hokkaido UniversitySapporo001-0021Japan Graduate School of Life Science Hokkaido UniversitySapporo001-0021Japan Faculty of Advanced Life Science Hokkaido UniversitySapporo001-0021Japan Global Station for Soft Matter GI-CoRE Hokkaido UniversitySapporo001-0021Japan

Copolymer hydrogels formed from cationic and aromatic monomers with identical monomer compositions but different average sequences were synthesized by free-radical copolymerization in various *** found that hydrogels with one-componentrich segments are mechanically stronger than those with adjacent-rich monomer sequences in water,while hydrogels with a rich cation-πadjacent sequence showed excellent mechanical strength and underwater adhesion in saltwater(0.7 M Na Cl).The molecular mechanisms for these behaviors are discussed in terms of polymer *** work reveals the importance of monomeric sequences in determining hydrogel properties and provides a facile approach to develop hydrogels with different properties but the same monomer composition.

关键词： free-radical polymerization monomer sequence hydrogel cation-πinteractions underwater adhesion

Detection of 16 Small Glitches in Nine Pulsars

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Research in Astronomy and Astrophysics 2022年第9期22卷 88-97页

作者： Zu-Rong Zhou Jing-bo Wang Na Wang jian-ping Yuan Fei-Fei Kou Shi-Jun Dang Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China Xinjiang Key Laboratory of Radio Astrophysics Urumgi 830ollChina Key Lab of Radio Astronomy Chinese Academy of SciencesBeijing l0010lChina School of Physics and Electronic Science Guizhou Normal UniversityGuiyang 550001China

Pulsar timing measurements with a 26 m radio telescope at Nanshan between 2000 and 2014 were used to search for glitch events. The data span of nine pulsars ranges from 11.6 to 14.2 yr, and 16 new glitch events were identified in nine pulsars. Glitch parameters were determined through fitting the timing residuals data. All 16 glitches have a small fractional size. Six new glitches have been detected in PSR J1833-0827, making it another frequent glitching pulsar. Some of the 16 glitches may experience exponential or linear recovery, but it is unlikely for us to make further analyses with the large gap in the data set. All the glitch rates obtained from Nanshan are higher than that from Jodrell Bank Observatory. The small glitch size and high glitch rate could possibly attribute to the high observation cadence.

关键词： stars:neutron methods:data analysis (stars:)pulsars:general