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Chemical Research in Chinese Universities 2012年第3期28卷 419-423页

作者： ji guo-dong ZHOU guo-hui Key Laboratory of Water and Sediment Sciences Ministry of EducationDepartment of Environmental EngineeringPeking UniversityBeo'ing 100871P.R.China

Sodium silicate（NazSiO3） was used to improve the elution of super heavy oil from weathered soil on an ultrasound-enhanced elution system by the solution containing 0-6000 mg/L surfactant Triton X-100. The removal extent of three markers[C26-34 17a 25-norhopanes, C26-28triaromatic steroids（TAS）, and C27-29methyl triaromatic steroids（MTAS）] was monitored. The average elution percentages of C26-34 norhopanes, C26-28 TAS, and C27-29 MTAS by Triton X-100/Na2SiO3 solutions were increased by 11%-13%, 9%-11% and 8%-13% with increasing Triton X-100 concentrations from 150 mg/L to 6000 mg/L. All the concentrations of Triton X-100 improved the elu- tion of TAS homologs containing fewer carbon atoms, whereas high concentrations improved the elution of larger 17a 25-norhopane and MTAS species. Addition of Na2SiO3 produced a noticeable increase in elution, particularly for lower-weight species. Scanning electron microscope（SEM） images and energy spectroscopy data reveal that surfac- rant solution of 6000 mg/L Triton X-100 and 4000 mg/L Na2SiO3 produced the greatest improvement in the elution of super heavy oil aggregates encapsulating the soil surface and the emulsification of particle dispersions. That is to say mixed solutions of Triton X-100 and Na2SiO3 in combination with ultrasound are a potential means of removing super heavy oil from weathered soils.

关键词： Triton X-100 surfactant solution Na2SiO3 17a 25-Norhopane Triaromatic steroid Biomarker

EXPERIMENTAL STUDY OF ROCK BREAKING EFFECT OF STEEL PARTICLES

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Journal of Hydrodynamics 2011年第2期23卷 241-246页

作者： CUI Meng ZHAI Ying-hu ji guo-dong MOE Key Laboratory of Petroleum Engineering China University of Petroleum Beijing 102249 China CNPC Drilling Research Institute Beijing 100195 China

Particle impact drilling is an efficient drilling technology for deep-well hard formation, With this technology, the rock is cut mainly by high-speed spherical particle impact under hydraulic action. In this article, the influence of jet flow factors, hydraulic factors and abrasive factors on rock breaking is studied through indoor experiments of impact by steel particles. The results indicate that the particle water jet has an optimal standoff distance and particle concentration; the rock breaking effect declines with the increase of the confining pressure and the decrease of the pump pressure and particle diameter. This study will provide some food of thought for the development of particle impact drilling technology.

关键词： hard formation particle impact drilling water jet rock breaking effect experimental research

Synthesis and characterization of adducts of p-azidostyrene derivatives to fullerene C_(60)

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Chinese Journal of Chemistry 1995年第6期13卷 525-531页

作者： LI,ji-Sheng dong,guo-Xiao FENG,Jun ji,Gai-jiaoInstitute of Chemistry,Chinese Academy of Sciences,Beijing 100080,China Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

Fullerene C60 reacted with p-azidostyrene derivatives in refluxing chlorobenzene,yielding monoadducts 2a and 2d as well as diadduct 2c with aziridine structure at 6/6-ring *** results showed that the addition of the second azide to the monoadduct was *** diadduct,of Cs symmetry in C60 moiety,was unstable by opening to be 1,6-imido[10]annulene structure.

关键词： Pullerene azkidine regioselective adduct azide

Photoreduction Behaviors of Micropcroxidase-11 Adsorbed on the Roughened Silver Electrodes

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Chinese Chemical Letters 1999年第10期10卷 843-844页

作者： Ying GAO Hui YANG ji dong guo Jun Wei ZHENG Tian Hong LU (1 Department of Chemistry. Haerbin Normal University, Haerbin 1500802 Department of Chemistry, Nanjing Normal University. Nanjing 210097 3 Changchun Institute of Applied Chemsitry. Chinese Aca Department of Chemistry Haerbin Normal University Haerbin 150080 China Department of Chemistry Nanjing Normal University Nanjing 210097 China Changchun Inst. of Applied Chemsitry Chinese Academy of Sceinces Changchun 130022 China

It was found that microperoxidase-11 (MP-if) can undergo photoreduction at the bareroughened silver electrode. No photoreduction happens at the roughened silver electrodemodified with mercaptoundecanoic carboxylic aci... 详细信息

关键词： Microperoxidase. polylysine modified electrode photoreduction.

基于逐段曲线回归分析的息票剥离法的研究及应用

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数学的实践与认识 2009年第23期39卷 1-9页

作者：董继国河北师范大学数学与信息科学学院河北石家庄050016

对一般息票剥离法(Bootstrap m ethod)进行了改进,将其在两个最近期间之间的利率利用线性关系进行估计,扩展为由回归分析逐段拟合曲线给予预测和估值.并给出了模型需要修正的情况和一个一般的修正方法.最后与N elson-S iegel模型构造收... 详细信息

对一般息票剥离法(Bootstrap m ethod)进行了改进,将其在两个最近期间之间的利率利用线性关系进行估计,扩展为由回归分析逐段拟合曲线给予预测和估值.并给出了模型需要修正的情况和一个一般的修正方法.最后与N elson-S iegel模型构造收益率曲线的方法进行了对比实证分析,并给出了相应的分析结果.

关键词：逐段曲线回归息票剥离法利率期限结构

The Channel Behavior of Gramicidin D in the Self-assembled Monolayer

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Chinese Chemical Letters 1999年第2期10卷 165-166页

作者： ji dong guo Li Xiang WANG Gong Quan SUN Tian Hong LU Hut YANG(Changqhun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022)(Department of Chemistry, Naming Normal University, Naming, 210097) Changchun Inst. of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China Department of Chemistry Nanjing Normal University Nanjing 210097 China

It was found for the first time that gramicidin D (GD) molecules can be incorporated into the ODM monolayer which is self-assembled on the surface of the gold electrode and form monovalent cation channels.

关键词： gramicidin self-assembled monolayer channel behavior

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Zassenhaus猜想的一个注记

数学学报（中文版） 2018年第3期61卷 441-446页

作者：海进科郭继东青岛大学数学与统计学院青岛266071 伊犁师范学院数学与统计学院伊宁835000

在这篇注记中，通过研究两个有限群直积的整群环的正规化挠单位的偏增广，证明了在某些条件下这些正规化挠单位与该群中的元素在有理群代数中共轭．

关键词：整群环挠单位偏增广

Markov-modulated风险模型中盈余过程零点数的分布

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高校应用数学学报（A辑） 2008年第3期23卷 282-286页

作者：董继国刘国欣河北师范大学数学与信息科学学院河北石家庄050016 河北工业大学理学院天津300130

基于保险公司在首次破产后仍能继续运转的情形,讨论并得到了Markov- modulated风险模型中盈余过程零点数的分布.

关键词： Markov-modulated风险模型逐段决定马尔可夫过程补充变量

Markov-modulated风险模型破产前最大盈余额与破产赤字的联合分布

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高校应用数学学报（A辑） 2010年第1期25卷 9-12页

作者：董继国刘国欣河北师范大学数学与信息科学学院河北石家庄050016 河北工业大学理学院天津300130

应用逐段决定马尔可夫过程理论及补充变量技巧,使Markov-modulated风险过程成为齐次强马尔可夫过程,然后利用强马氏性及首达时间分布给出了其破产前最大盈余额与破产赤字的联合分布.

关键词： Markov-modulated风险模型逐段决定马尔可夫过程补充变量

Distributed optimal consensus control for multiagent systems based on event-triggered and prioritized experience replay strategies

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Science China(Information Sciences) 2025年第1期68卷 306-321页

作者： Cuijuan ZHANG Lianghao ji Shasha YANG Xing guo Huaqing LI Chongqing Key Laboratory of Image Cognition Chongqing University of Posts and Telecommunications Key Laboratory of Intelligent Perception and Computing of Anhui Province Anqing Normal University College of Electronic and Information Engineering Southwest University

This study uses event-triggered(ET) and reinforcement learning methods to investigate the optimal consensus control problem for cooperative-competitive multiagent systems. It proposes a novel distributed ET control strategy, which relies on a prioritized experience replay(PER) policy. This strategy not only conserves communication resources but also ensures acceptable system performance. To implement the proposed method, actor-critic(AC) dual-structured neural networks(NNs) are used to approximate the value function and control policy. In the AC NNs, the weight estimates for the NNs are updated at the moment of event triggering, resulting in a nonperiodic weight adjustment pattern. This approach decreases the computational cost in comparison with the traditional ET mechanism. The PER-based ET mechanism makes full use of valid historical data and effectively establishes a balance between system performance and communication resource ***, it does not require the following two conditions in most existing studies:(1) requirement of the system dynamics model to be known, and(2) persistent excitation. In addition, Zeno behavior is excluded from this study. Finally, a simulation is conducted to confirm the validity of the suggested approach.

关键词： multiagent systems event-triggered mechanism prioritized experience replay dual-structured neural networks optimal consensus control