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岩心多孔介质中乳状液乳化性能评价和驱油效果研究

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应用化工 2024年第5期53卷 1003-1008,1014页

作者：马良周朝辉杜猛陆舒艺李根张群韩璐刘先贵中国科学院大学工程科学学院北京100049 中国科学院渗流流体力学研究所河北廊坊065007 中国石油勘探开发研究院北京100083 提高油气采收率全国重点实验室北京100083 北京师范大学生命科学学院北京100875 东北石油大学非常规油气研究院黑龙江大庆163318

综合利用全能红外稳定分析仪、光学显微镜及多功能流变仪,从宏观和微观角度开展了不同复合体系在岩心渗流和机械搅拌下生成乳状液的稳定性、黏度及微观形态变化特征实验研究。在此基础上,辅以岩心驱油实验,研究了不同乳状液复合体系的... 详细信息

综合利用全能红外稳定分析仪、光学显微镜及多功能流变仪,从宏观和微观角度开展了不同复合体系在岩心渗流和机械搅拌下生成乳状液的稳定性、黏度及微观形态变化特征实验研究。在此基础上,辅以岩心驱油实验,研究了不同乳状液复合体系的驱油效果。结果表明,甜菜碱表面活性剂二元体系可在岩心多孔介质驱油过程中有效生成乳状液,机械搅拌状态下不同复合体系稳定性差异显著。二元、无碱A、三元体系的机械搅拌剪切与岩心渗流生成乳状液的TSI值具有反向关联的关系,而在乳状液黏度上二者具有正向关联的关系。相比于岩心剪切,机械搅拌剪切应力较大,不同体系生成的乳状液液滴粒径更小,能够更显著地区分出不同体系之间乳状液相态区别。岩心驱油实验过程中,整体渗流阻力与提高采收率幅度存在反向相关的关系,不同等黏度体系提高采收率幅度依次升高,且具有显著的梯度差异,二元、三元、无碱A体系不仅可以通过乳化封堵起到调剖作用,扩大波及体积,进而提高洗油效率,乳化流体还可以进入水驱难以波及的微孔区域中洗油、刮油,通过乳化携带作用,降低残余油饱和度,改善驱油效果。

关键词：乳状液乳化评价提高采收率化学驱渗流阻力驱油效果

Emergent Quantum Dynamics of Vortex-Line under Linear Local Induction Approximation

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Chinese Physics Letters 2019年第12期36卷 52-56页

作者： gui-Hao Jia Yu Xu Xiao Kong Cui-Xian Guo Si-Lei Liu Su-Peng Kou Center for Advanced Quantum Studies Department of PhysicsBeiing Normal UniversityBeijing 100875

Using the linear local induction approximation, we investigate the self-induced motion of a vortex-line that corresponds to the motion of a particle in quantum mechanics. Provided Kelvin waves, the effective Schr?dinger equation, physical quantity operators, and the corresponding path-integral formula can be obtained. In particular,the effective Planck constant defined by parameters of vortex-line motion shows the mathematical relation between the two fields. The vortexline–particle mapping may help in understanding particle motion in quantum mechanics.

关键词： vortex quantum Approximation

Diurnal brooding behavior of long-tailed tits （Aegithalos caudatus glaucogularis）

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Zoological Research 2016年第2期37卷 84-89页

作者： Jin YU Peng-Cheng WANG Lei LU Zheng-Wang ZHANG Yong WANG Ji-Liang XU Jian-Qiang LI Bo XI Jia-gui ZHU Zhi-Yong DU School of Nature Conservation Beijing Forestry University Beijing 100083 China College of Life Sciences Beijing Normal University Beijing 100875 China School of Agricultural and Environmental Sciences Alabama A&M University Alabama 35762 USA Dongzhai National Nature Reserve Luoshan Henan 464236 China

Brooding is a major breeding investment of parental birds during the early nestling stage, and has important effects on the development and survival of nestlings. Investigating brooding behavior can help to understand avian breeding investment strategies. From January to June in 2013 and 2014, we studied the brooding behaviors of long-tailed tits （Aegithalos caudatus glaucogularis） in Dongzhai National Nature Reserve, Henan Province, china. We analyzed the relationships between parental diurnal brooding duration and nestling age, brood size, temperature, relative breeding season, time of day and nestling frequencies during brooding duration. Results showed that female and male long-tailed tit parents had different breeding investment strategies during the early nestling stage. Female parents bore most of the brooding investment, while male parents performed most of the nestling feedings. In addition, helpers were not found to brood nestlings at the two cooperative breeding nests. Parental brooding duration was significantly associated with the food delivered to nestlings （F=86.10, dr=l, 193.94, P〈0.001）, and was longer when the nestlings received more food. We found that parental brooding duration declined significantly as nestlings aged （F=5.99, dr=-1, 50.13, P=0.018）. When nestlings were six days old, daytime parental brooding almost ceased, implying that long- tailed tit nestlings might be able to maintain their own body temperature by this age. In addition, brooding duration was affected by both brood size （F=12.74, dr=-1,32.08, P=0.001） and temperature （F=5.83, df=-l, 39.59, P=-0.021）, with it being shorter in larger broods and when ambient temperature was higher.

关键词： Long-tailed tit Aegithalos caudatusglaucogularis Brooding Daytime Early nestling stage

Coherent and incoherent theories for photosynthetic energy transfer

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Science Bulletin 2020年第4期65卷 318-328页

作者： Ming-Jie Tao Na-Na Zhang Peng-Yu Wen Fu-Guo Deng Qing Ai gui-Lu Long Department of Physics Tsinghua UniversityBeijing 100084China Department of Physics Applied Optics Beijing Area Major LaboratoryBeijing Normal UniversityBeijing 100875China NAAM-Research Group Department of MathematicsFaculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia

There is a remarkable characteristic of photosynthesis in nature, that is, the energy transfer efficiency is close to 100%. Recently, due to the rapid progress made in the experimental techniques, quantum coherent effects have been experimentally demonstrated. Traditionally, the incoherent theories are capable of calculating the energy transfer efficiency, e.g.,(generalized) F?rster theory and modified Redfield theory(MRT). However, in order to describe the quantum coherent effects in photosynthesis, one has to exploit coherent theories, such as hierarchical equation of motion(HEOM), quantum path integral, coherent modified Redfield theory(CMRT), small-polaron quantum master equation, and general Bloch-Redfield theory in addition to the Redfield theory. Here, we summarize the main points of the above approaches,which might be beneficial to the quantum simulation of quantum dynamics of exciton energy transfer(EET) in natural photosynthesis, and shed light on the design of artificial light-harvesting devices.

关键词： Forster theory Modified Redfield theory Hierarchical equation of motion Coherent modified Redfield theory Small-polaron quantum master equation General Bloch-Redfield theory

A small electron beam ion trap/source facility for electron/neutral-ion collisional spectroscopy in astrophysical plasmas

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Research in Astronomy and Astrophysics 2018年第1期18卷 1-10页

作者： gui-Yun Liang Hui-Gang Wei Da-Wei Yuan Fei-Lu Wang Ji-Min Peng Jia-Yong Zhong Xiao-Long Zhu Mike Schmidt Günter Zschornack Xin-Wen Ma Gang Zhao Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China Department of Astronomy Beijing Normal University Beijing 100875 China Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China DREEBIT GmbH 01109 Dresden Germany

Spectra are fundamental observation data used for astronomical research,but understanding them strongly depends on theoretical models with many fundamental parameters from theoretical *** models give different insights for understanding a specific ***,laboratory benchmarks for these theoretical models become *** electron beam ion trap is an ideal facility for spectroscopic benchmarks due to its similar conditions of electron density and temperature compared to astrophysical plasmas in stellar coronae,supernova remnants and so *** this paper,we will describe the performance of a small electron beam ion trap/source facility installed at National Astronomical Observatories,Chinese Academy of *** present some preliminary experimental results on X-ray emission,ion production,the ionization process of trapped ions as well as the effects of charge exchange on the ionization.

关键词： X-ray:general atomic processes line:formation method:laboratory:atomic

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新时代高校历史师范教育亟需解决的主要问题

教师教育研究 2023年第3期35卷 13-18,31页

作者：侯桂红北京师范大学历史学院北京100875

新时代高校历史师范教育亟需解决的主要问题是优化课程方案,完善课程实施和评价模式,健全反映历史教育本质的历史教育学理论体系和研究范式,增强历史教育教师职业认同及学术输出能力。如此才能实现由低质、外延式发展转变为以提高质量... 详细信息

新时代高校历史师范教育亟需解决的主要问题是优化课程方案,完善课程实施和评价模式,健全反映历史教育本质的历史教育学理论体系和研究范式,增强历史教育教师职业认同及学术输出能力。如此才能实现由低质、外延式发展转变为以提高质量、优化结构为核心的内涵式发展,培养出高素质、专业化、创新型的未来教师,形成高校历史师范教育和中学历史教育的新样态。

关键词：师范教育历史教师师范院校

推进马克思主义基本原理同中华优秀传统文化相结合:成就、逻辑与经验

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北京联合大学学报（人文社会科学版） 2022年第4期20卷 50-56页

作者：王峰王桂芝北京师范大学马克思主义学院北京100875 北京联合大学马克思主义学院北京100101

推进马克思主义基本原理同中华优秀传统文化相结合,是党的百年理论创新的历史主题,生成了具有鲜明特色的中国化马克思主义理论,并指导中国革命、建设、改革取得了辉煌成就。二者之所以能够结合并取得历史性成就,是因为中国共产党的历史... 详细信息

推进马克思主义基本原理同中华优秀传统文化相结合,是党的百年理论创新的历史主题,生成了具有鲜明特色的中国化马克思主义理论,并指导中国革命、建设、改革取得了辉煌成就。二者之所以能够结合并取得历史性成就,是因为中国共产党的历史自觉是前提,二者价值观念相互融通是基础,中华民族伟大复兴的实践为其提供了相结合的广阔途径。以史为鉴,我们在新征程上仍然要积极推进马克思主义基本原理同中华优秀传统文化相结合,为中华民族伟大复兴事业提供理论武器。

关键词：马克思主义中国化中华优秀传统文化马克思主义基本原理中华民族伟大复兴

High-Capacity Quantum Secure Direct Communication Based on Quantum Hyperdense Coding with Hyperentanglement

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Chinese Physics Letters 2011年第4期28卷 32-35页

作者： WANG Tie-Jun LI Tao DU Fang-Fang DENG Fu-Guo Department of Physics Applied Optics Beijing Area Major LaboratoryBeijing Normal UniversityBeijing 100875 College of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875 beijing Radiation Center Beijing 100875

We present a quantum hyperdense coding protocol with hyperentanglement in polarization and spatial-mode degrees of freedom of photons first and then give the details for a quantum secure direct communication(QSDC)protocol based on this quantum hyperdense coding *** QSDC protocol has the advantage of having a higher capacity than the quantum communication protocols with a qubit *** with the QSDC protocol based on superdense coding with𝑑-dimensional systems,this QSDC protocol is more feasible as the preparation of a high-dimension quantum system is more difficult than that of a two-level quantum system at present.

关键词： quantum system details

A Test of Two-photon Entanglement in Spatial Modes

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量子光学学报 2006年第B8期12卷 76-76页

作者： Kaige Wang Li-ping Deng gui-fang Dang Department of Physics Applied Optics Beijing Area Major Laboratory Beijing Normal University Beijing 100875China