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Active source seismic imaging on near-surface granite body:case study of siting a geological disposal repository for high-level radioactive nuclear waste

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Petroleum Science 2021年第3期18卷 742-757页

作者： Wen Li Yi-Ke liu Yong Chen bao-Jin liu Shao-Ying Feng School of Earth Sciences and Engineering Nanjing UniversityNanjing 210008China Key Laboratory of Petroleum Resource Research Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Geophysical Exploration Center China Earthquake AdministrationZhengzhou 450002China

In order to research whether it is suitable to set a geological disposal repository for high-level radioactive nuclear waste into one target granite body,two active source seismic profles were arranged near a small town named Tamusu,Western *** study area is with complex surface conditions,thus the seismic exploration encountered a variettraveltimey of technical difculties such as crossing obstacles,de-noising harmful scattered waves,and building complex near-surface velocity *** order to address those problems,techniques including cross-obstacle seismic geometry design,angle-domain harmful scattered noise removal,and an acoustic wave equation-based inversion method jointly utilizing both the and waveform of frst arrival waves were *** fnal seismic images clearly exhibit the target rock’s unconformable contact boundary and its top interface beneath the sedimentary and weathered *** this basis,it could be confrmed that the target rock is not thin or has been transported by geological process from somewhere else,but a native and massive *** are a few small size fractures whose space distribution could be revealed by seismic images within the *** fractures should be kept *** on current research,it could be considered that active source seismic exploration is demanded during the sitting process of the geological disposal repository for nuclear *** seismic acquisition and processing techniques proposed in the present paper would ofer a good reference value for similar researches in the future.

关键词： Geological disposal repository Nuclear waste Granite body Active source seismic exploration Near-surface velocity inversion

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Indirect Flow Injection Chemiluminescence Method for the Determination of Tetracyclines Using Cu(Ⅱ) as a Probe Ion

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Chinese Chemical Letters 2005年第8期16卷 1067-1070页

作者： Su Qin HAN Er bao liu Hua LI Institute of Analytical Science Northwest University Xi＇an 710069 School of Chemistry and Material Science Shanxi Normal University Linfen 041004 College of Chemistry and Life Science Tianjin Normal University Tianjin 300074

This paper reported an indirect flow injection chemiluminescence （FI-CL） method for the determination of the drugs tetracycline （TC）, chlortetracycline （CTC） and oxytetracycline（OTC） using Cu（ Ⅱ ） as a probe ion. The CL reaction was induced on-line and after injection of the sample the negative peaks appeared as a result of complexation. The method was applied to the determination of TCs in pharmaceuticals and human urine with recoveries in the range95-105%.

关键词： Cu(Ⅱ) probe ion inhibitory chemiluminescence tetracyclines.

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Searching for Odderon with ^-pp and pp Elastic Scattering at High Energies

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Communications in Theoretical Physics 2007年第3X期48卷 519-524页

作者： ZHOU Li-Juan liu bao-Rong MA Wei-Xing Collaboration Group of Hadron Physics and Non-perturbative QCD Study Guangxi University of Technology Liuzhou 545006 China Department of Physics Guangxi University Nanning 530004 China Institute of High Energy Physics the Chinese Academy of Sciences Beijing 100049 China

Based on the assumption that the Pomeron is a sum of Regge multipoles, each of which corresponds to a finite gluon ladder, we suggest a way to search the Odderon by studying the diffractive processes of ^-pp and pp elastic scattering. From our theoretical calculations and fits to the corresponding experimental data at high energies and all available momentum transfer, we find that the Odderon plays a significant role in the description of differential cross section dσ/ dt in the whole experimental domain. Accordingly, we can claim that the ^-pp and pp diffractive processes at high energies s and moderate momentum transfer t could be a good tool to search for Odderon and to test QCD since the processes are purely non-perturbative QCD phenomena. Therefore, the experimental measurements are urgently demanded.

关键词： Odderon diffractive processes non-perturbative QCD

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Mode Conversion and Diffraction of Guided Optical Waves from Magnetostatic Waves under Inclined Bias Magnetic Field

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Communications in Theoretical Physics 2001年第10期36卷 497-502页

作者： WU bao-Jian liu Gong-Qiang ZOU Zhi-Qiang Department of Applied Physics Shanghai Jiao Tong University Shanghai 200030 China Department of Applied Physics Shanghai Jiao Tong University Shanghai 200030 China Department of Applied Physics Shanghai Jiao Tong University Shanghai 200030 China

The noncollinear interaction of guided optical waves with magnetostatic waves under inclined bias magnetic field is theoretically studied in detail. Similar approach can also be applied to the collinear interaction. Calculation results indicate that the diffraction efficiency (DE) in magnitude is equal to the mode-conversion efficiency (MCE) under vertical bias magnetic field, but they differ greatly under inclined bias magnetic field. By comparison to the case of vertical magnetization, the DE or the MCE can be greatly increased under inclined magnetic field. The characteristic of the DE curves obtained is basically in agreement with the experimental result.

关键词： guided optical wave, magnetostatic wave, mode conversion, diffraction efficiency

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The roles of graphene in advanced Li-ion hybrid supercapacitors

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Journal of Energy Chemistry 2018年第1期27卷 43-56页

作者： Junwei Lang Xu Zhang bao liu RutaoWang Jiangtao Chen Xingbin Yan Laboratory of Clean Energy Chemistry and Materials State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PbysicsLanzhou 730000GansuChina Qingdao Center of Resource Chemistry&New Materials Qingdao 266071SbandongChina

Lithium-ion hybrid supercapacitors （LIHSs）, also called Li-ion capacitors, are electrochemical energy stor- age devices that combining the advantages of high power density of supercapacitor and high energy density of Li-ion battery. However, high power density and long cycle life are still challenges for the cul~ rent LIHSs due to the imbalance of charge-storage capacity and electrode kinetics between capacitor-type cathode and battery-type anode. Therefore, great efforts have been made on designing novel cathode materials with high storage capacity and anode material with enhanced kinetic behavior for LIHSs. With unique two-dimensional form and numerous appealing properties, for the past several years, the rational designed graphene and its composites materials exhibit greatly improved electrochemical performance as cathode or anode for LIHSs. Here, we summarized and discussed the latest advances of the state- of-art graphene-based materials for LIHSs applications. The major roles of graphene are highlighted as （1） a superior active material, （2） ultrathin 2D flexible support to remedy the sluggish reaction of the metal compound anode, and （3） good 2D building blocks for constructing macroscopic 3D pOFOUS car- bonjgraphene hybrids. In addition, some high performance aqueous LIHSs using graphene as electrode were also summarized. Finally, the perspectives and challenges are also proposed for further develop- ment of more advanced graphene-based LIHSs.

关键词： Graphene Li-ion hybrid supercapacitors Supercapacitor Lithium ion batteries Carbon materials Metal oxide Naoocomposites

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Influences of meridional flowpath on the performance of swept blade in an axial compressor stage

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航空动力学报 2015年第8期30卷 1875-1887页

作者： YU Xian-jun XU Peng-fei ZHANG Yi-fei liu bao-jie School of Energy and Power Engineering Beiiing University of Aeronautics and Astronautics Beijing 100191 China National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics School of Energy and Power EngineeringBeijing University of Aeronautics and Astronautics Beijing 100191 China Collaborative Innovation Center for Advanced Aero-Engine Beijing 100191 China

A series of numerical simulations were conducted in both a 1.5stage axial compressor model and a simplified planar cascade *** cases with different blade sweep schemes in the cascade model were simulated with free-slip endwalls to minimize the influence of endwall 3-D(three-dimensional)*** results obtained in the cascade model were discussed at first for getting a clear insight into the effects of blade sweep without other *** then the simulation results of the 1.5stage compressor model were discussed *** discussions focused on the influences of different meridional flowpath designs,*** mid radius(CMR)design,constant outer radius(COR)design and constant inner radius(CIR)design,on the performance of the swept *** results showed that the most critical effect produced by blade sweep was attributed to the redistribution of local mass-flow-rate in blade spanwise *** change of meridional flowpath did not change the mass-flow-rate redistribution ***,the trends for local mass-flow-rate redistribution in compressor stage model showed some discrepancies compared with the results shown in the planar cascade model.

关键词：航空航空动力学航空发动机发动原理

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Type-B response regulator OsRR22 forms a transcriptional activation complex with OsSLR1 to modulate OsHKT2;1 expression in rice

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Science China(Life Sciences) 2023年第12期66卷 2922-2934页

作者： Yutong liu Xiaoyuan Peng Ao Ma Wenxin liu bao liu Dae-Jin Yun Zheng-Yi Xu Key Laboratory of Molecular Epigenetics of the Ministry of Education(MOE) Northeast Normal UniversityChangchun 130024China Department of Biomedical Science and Engineering Konkuk UniversitySeoul 05029Republic of Korea

Soil salinity severely limits crop yields and *** have evolved several strategies to mitigate the adverse effects of salinity,including redistribution and compartmentalization of toxic ions using ion-specific ***,the mechanisms underlying the regulation of these ion transporters have not been fully ***-of-function mutants of OsHKT2;1,which is involved in sodium uptake,exhibit strong salt stress-resistant *** this study,OsHKT2;1 was identified as a transcriptional target of the type-B response regulator ***-of-function osrr22 mutants showed resilience to salt stress,and OsRR22-overexpression plants were sensitive to salt ***22 was found to activate the expression of OsHKT2;1 by directly binding to the promoter region of OsHKT2;1 via a consensus cis-element of type-B response ***,rice DELLA protein OsSLR1 directly interacted with OsRR22 and functioned as a transcriptional *** study has uncovered a novel transcriptional regulatory mechanism by which a type-B response regulator controls sodium transport under salinity stress.

关键词： Oryza sativa type-B response regulator transcriptional regulation sodium transport

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Strong coupling without touching

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National Science Review 2014年第4期1卷 472-473页

作者： Ren-bao liu Quan Li Department of Physics and Centre for Quantum Coherence The Chinese University of Hong Kong

If an excited atom is put in between highrelectance mirrors,the light emited by the atom can be bounced back and be re-absorbed and be re-emited,again and again until the light leaks out of the mirrors or is re-emited into a wrong *** coherent oscillation between atom and light,called vacuum Rabi oscillation,results from interference between

关键词： high Strong coupling without touching than

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Planning issues on linac-based stereotactic radiotherapy

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World Journal of Clinical Cases 2022年第35期10卷 12822-12836页

作者： Yang-Yang Huang Jun Yang Yi-bao liu School of Nuclear Science and Engineering East China University of TechnologyNanchang 330013Jiangxi ProvinceChina Department of Radiotherapy The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014Henan ProvinceChina Department of Radiotherapy The Third Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina

This work aims to summarize and evaluate the current planning progress based on the linear accelerator in stereotactic radiotherapy(SRT).The specific techniques include 3-dimensional conformal radiotherapy,dynamic conformal arc therapy,intensity-modulated radiotherapy,and volumetric-modulated arc therapy(VMAT).They are all designed to deliver higher doses to the target volume while reducing damage to normal tissues;among them,VMAT shows better prospects for *** paper reviews and summarizes several issues on the planning of SRT to provide a reference for clinical application.

关键词： Stereotactic radiotherapy Treatment technology Energy Isocenters Coplanar/noncoplanar fields Calculation algorithm Multileaf collimator leaf width Flattening filter free mode Small field dosimetry Grid size

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Continuous Production of Carbon Nanotubes by Using Moving Bed Reactor

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Chinese Chemical Letters 2001年第12期12卷 1135-1138页

作者： bao Chun liu Mei Zhen QU Zuo Long YU Chengdu Institute of Organic Chemistry Chinese Academy of SciencesChengdu 610041 Nanjing University of Chemical Technology Nanjing 210009

High-quality carbon nanotubes were continuously produced by using moving bed reactor. The studies of scanning electron microscopy and transmission electron microscopy reveal their homogeneity both in inner (similar to 10 nm) and outer diameter (20-40 nm) of the tubes. The studies of X-ray photoelectron spectroscopy and the oxidation of carbon nanotubes in air demonstrate that the tubes have good graphitic degree.

关键词： carbon nanotubes moving bed reactor production

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