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Full Quantum Theory of Transient-State Electromagnetically Induced Transparency

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Communications in Theoretical Physics 2004年第3X期42卷 407-412页

作者： KUANGLe-man ZENGAi-hua KUANGZhen-hua DepartmentofPhysics HunanNormalUniversityChangsha410081China DepartmentofPhysics ShaoyangUniversityShaoyang422000China

We develop a full quantum theory of transient-state electromagnetically induced transparency (EIT) in thevapor of three-level A-type atoms interacting with probe and coupling lasers. As applications of the full quantum theory,we show that transient-state EIT medium exhibits normal dispersion and find that group velocities of both coupling andprobe lasers are greatly reduced. It is shown that the group velocity of the probe laser in the transient-state EIT case isequal to that in the adiabatic EIT case and that the coupling laser group velocity in the transient-state EIT is generallyless than that in the adiabatic EIT.

关键词：耦合激光探测激光电磁诱导透射全量子理论三层∧型原子相互作用群速度激光物理

Novel Action of 3,4-DAA ameliorating Acute Liver Allograft Injury

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Novel Action of 3,4-DAA ameliorating Acute Liver Allograft I...

Influence of Decoherence on Interference Between Two Bose-Einstein Condensates

第四届中国医师协会感染科医师大会暨传染病诊治高峰论坛、浙江省医学会肝病、感染病学学术年会

作者： Department of Infectious Diseases,the Third Affiliated Hospital to Wenzhou Medical College,Rui' an,Zhejiang,325200,China Qing-Feng Sun Ji-Guang Ding Department of infectious diseases,The First Affiliated Hospital to Medical College of Zhejiang University,Hangzhou,Zhejiang,310003,China Ji-Fang Sheng man-hua zhu Jun-Jie Li Zi-Ke Sheng Department of Surgery,The First Affiliated Hospital to Medical College of Zhejiang University,Hangzhou,Zhejiang,310003,China Xiao-Feng Tang

The anti-allergic drug,N-(3,4-dimethoxycinnamonyl) anthranilic acid(3,4-DAA),is a synthetic anthranilic acid derivative that has been used therapeutically in Japan for many *** this study,to investigate the effects of 3,4-DAA in allograft immunorejection model,liver orthotopic transplants were performed using inbred male Dark Agouti donors and Lewis rat recipients(allografts).The levels of indoleamine 2,3-dioxygenases (IDO) enzymic activities in five groups,allografts(control),DMSO-treated group(vehicle control),200 mg/kg/day 3,4-DAA-treated group and 200 mg/kg/day 3,4-DAA+5mg/ml 1-Methyl-D-tryptophan(1-MT)treated group were confirmed by determination of L-kynurenine(L-Kyn) *** serum alanine aminotransferase(ALT) levels in 3,4-DAA-treated rats significantly decreased compared with those in mock and control group while treatment of 1 -MT in allografts led to the opposite *** of 3,4-DAA reduced histological severity of allograft immunorejection,decreased serum levels of cytokines tumor necrosis factor-alpha(TNF-α) and interferon-gamma(IFN-γ),and raised serum levels of interleukin-10(IL-10), suggesting 3,4-DAA has both anti-inflammatory and anti-immunorejection properties through IDO in immune regulation,and may therefore be useful in filling an unmet need,in the treatment of allograft immunorejection.

关键词： DAA Novel Action of 3,4-DAA ameliorating Acute Liver Allograft Injury Action

来源： cnki会议评论

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Communications in Theoretical Physics 2004年第1期41卷 41-44页

作者： ZENGAi-hua KUANGLe-man DepartmentofPhysics ShaoyangCollegeShaoyang422004China DepartmentofPhysics HunanNormalUniversityChangsha410081China

The influence of decoherence on interference between two trapped Bose-Einstein condensates with arbitraryinitial states is studied. Analytic expressions of the intensity and visibility of the interference pattern are found. It isshown that the decoherence weakens the interference intensity and decreases the visibility of the interference pattern.

关键词： Bose-Einstein condensate decoherence interference

Photometric investigation of the eclipsing binary TX Herculis observed by LUT

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Research in Astronomy and Astrophysics 2019年第7期19卷 47-52页

作者： Li-Ying zhu Xiao-man Tian Xiao Zhou Lin-Jia Li Zhi-hua Wang Yunnan Observatories Chinese Academy of SciencesKunming 650216China Center for Astronomical Mega-Science Chinese Academy of SciencesBeijing 100101China Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of SciencesKunming 650216China University of the Chinese Academy of Sciences Beijing 100049China

The lander of China’s Chang’E-3 spacecraft is equipped with a 15-cm telescope that is very useful for monitoring celestial objects in the ultraviolet(UV) band(245–340 nm).The Lunar-based Ultraviolet Telescope(LUT) is the first long-term lunar-based astronomical observatory,that can make uninterrupted observations of a target from the *** we present the continuous complete UV light curve of the eclipsing binary TX Herculis(TX Her).The analysis of the light curve suggests that TX Her is a detached *** dip in the light curve was explained by the emergence of a stellar dark spot on the less massive F0 type *** cyclic change of arrival eclipse times for the system reveals that it contains an additional stellar companion with a minimal mass of 0.35 M⊙ and a period of 48.92 yr,which is supported by the detected light contribution of the third body from light curve *** third body may play an important role in the formation of the present short-period system TX Her.

关键词： stars:binaries:close stars:binaries:eclipsing stars:individuals (TX Herculis) stars:multiple system stars:activity

Multiple Random Forests Based Intelligent Location of Single-phase Grounding Fault in Power Lines of DFIG-based Wind Farm

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Journal of Modern Power Systems and Clean Energy 2022年第5期10卷 1152-1163页

作者： Yongli zhu hua Peng School of Electrical and Electronic Engineering North China Electric Power UniversityBaoding 071003China

To address the problems of wind power abandonment and the stoppage of electricity transmission caused by a short circuit in a power line of a doubly-fed induction generator(DFIG) based wind farm, this paper proposes an intelligent location method for a single-phase grounding fault based on a multiple random forests(multi-RF) algorithm. First, the simulation model is built, and the fundamental amplitudes of the zerosequence currents are extracted by a fast Fourier transform(FFT) to construct the feature set. Then, the random forest classification algorithm is applied to establish the fault section locator. The model is resampled on the basis of the bootstrap method to generate multiple sample subsets, which are used to establish multiple classification and regression tree(CART) classifiers. The CART classifiers use the mean decrease in the node impurity as the feature importance,which is used to mine the relationship between features and fault sections. Subsequently, a fault section is identified by voting on the test results for each classifier. Finally, a multi-RF regression fault locator is built to output the predicted fault distance. Experimental results with PSCAD/EMTDC software show that the proposed method can overcome the shortcomings of a single RF and has the advantage of locating a short hybrid overhead/cable line with multiple branches. Compared with support vector machines(SVMs)and previously reported methods, the proposed method can meet the location accuracy and efficiency requirements of a DFIG-based wind farm better.

关键词： Doubly-fed induction generator(DFIG)based wind farm power line multiple random forests(multi-RF) single-phase grounding fault fault location

Construction and Analysis of Suppression Subtractive cDNA Library from Fertile Disk Floret Buds of Zinnia elegans

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Journal of Integrative Agriculture 2012年第4期11卷 567-575页

作者： PANG Rui-hua MA Guang-ying LOU Xue-yuan BAO man-zhu YE Yao-mei Key Laboratory of Horticultural Plant Biology Ministry of Education/College of Horticulture and Forestry Sciences Huazhong Agricultural University Wuhan 430070 P.R.China College of Life Sciences Xinyang Normal University Xinyang 464000 P.R.China

In order to isolate genes related to anther development and understand molecular basis of male sterility,cDNA library of Zinnia elegans was constructed using suppression subtractive hybridization（SSH） approach.672 different expressed clones were selected from the fertile disk floret *** results showed that cDNA inserts were ranged from 100 to 750 bp.303 positive clones screened by dot-blot hybridization were sequenced.273 out of 303 sequenced clones produced readable sequences;these sequences represent 87 non-repetitive *** homology alignment showed that 76 expressed sequence tags（ESTs） had functional annotations in GenBank,the other 11 ESTs without any homology to the known *** addition,87 ESTs were divided into 17 groups according to MIPS of Arabidopsis thaliana *** data from the cDNA library have been deposited with the GenBank under the accession numbers *** an important result in this study,7 genes related to anther development were *** from semi-quantitative RT-PCR showed 6 genes were expressed only in disk florets of fertile plants compared with that of male sterile *** ESTs obtained provide important clues for further isolation and identification of fertility-related genes in ***.

关键词： Zinnia elegans suppression subtractive hybridization(SSH) male sterility anther development expressed sequence tags(ESTs)

Quantum Stackelberg Duopoly Game in Depolarizing Channel

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Communications in Theoretical Physics 2008年第1期49卷 111-116页

作者： zhu Xia KUANG Le-man Department of Physics Hunan Normal University Changsha 410081 China

In this paper, we investigate the quantum Stackelberg duopoly （QSD） game in the noise environment with the depolarizing channel expressed by the Kraus-operator representation. It is found that the presence of the damping in the depolarizing channel always leads to the decrease of the quantities of the moves and payoffs of the two players in the QSD game. It is indicated that under certain conditions the first-mover advantage in the QSD game can be weakened due to the presence of the damping in the depolarizing channel.

关键词： quantum Stackelberg duopoly game Kraus operators depolarizing channel

MeshCNN-based BREP to CSG conversion algorithm for 3D CAD models and its application

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Nuclear Science and Techniques 2022年第6期33卷 75-88页

作者： Yue-Tong Luo hua Du Yi-man Yan Hefei University of Technology Hefei 230009China University of Science and Technology of China Hefei 230027China Institute of Plasma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China State Power Investment Corporation Research Institute National Energy Key Laboratory of Nuclear Power SoftwareBeijing 102209China

In the field of neutronics analysis, it is imperative to develop computer-aided modeling technology for Monte Carlo codes to address the increasing complexity of reactor core components by converting 3D CAD model(boundary representation, BREP) to MC model(constructive solid geometry, CSG). Separation-based conversion from BREP to CSG is widely used in computer-aided modeling MC codes because of its high efficiency, reliability, and easy implementation. However, the current separation-based BREP-CSG conversion is poor for processing complex CAD models, and it is necessary to divide a complex model into several simple models before applying the separation-based conversion algorithm, which is time-consuming and tedious. To avoid manual segmentation, this study proposed a MeshCNN-based 3D-shape segmentation algorithm to automatically separate a complex model. The proposed 3D-shape segmentation algorithm was combined with separation-based BREP-CSG conversion algorithms to directly convert complex *** proposed algorithm was integrated into the computeraided modeling software cosVMPT and validated using the Chinese fusion engineering testing reactor model. The results demonstrate that the MeshCNN-based BREP-CSG conversion algorithm has a better performance and higher efficiency, particularly in terms of CPU time, and the conversion result is more intuitive and consistent with the intention of the modeler.

关键词： BREP to CSG conversion Computer-aided modeling cosVMPT Intelligent pre-segmentation MeshCNN

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1-萘酚的太赫兹光谱实验及理论研究

原子与分子物理学报 2025年第4期42卷 33-39页

作者：王利民朱立江孙延华国家能源集团煤焦化有限责任公司乌海016000

1-萘酚是煤化工产物萘的合成产物,对环境和人体健康有危害.采用太赫兹时域光谱(THz-TDS)技术,获得了1-萘酚在0.5~4.0 THz范围内的实测太赫兹吸收谱,同时运用密度泛函理论(DFT)平面波赝势模型对1-萘酚晶胞模型进行理论光谱计算,探讨了平... 详细信息

1-萘酚是煤化工产物萘的合成产物,对环境和人体健康有危害.采用太赫兹时域光谱(THz-TDS)技术,获得了1-萘酚在0.5~4.0 THz范围内的实测太赫兹吸收谱,同时运用密度泛函理论(DFT)平面波赝势模型对1-萘酚晶胞模型进行理论光谱计算,探讨了平面波截断能在800~1600 eV范围内对理论光谱的影响,并对吸收峰的振动模式进行了理论归属.实验结果表明,1-萘酚在0.5~4.0 THz范围内有1.14 THz、1.60 THz、2.16 THz、2.81 THz、3.56 THz共5个吸收峰,平面波截断能1400 eV下得到的理论吸收谱与实测吸收谱在吸收峰个数、峰位、归一化峰强度上均有较好的一致性,5个吸收峰的振动模式均是以两元环为平面的受氢键束缚的面外摇摆振动或者面内扭转振动引起的.这为太赫兹技术对1-萘酚的识别提供了实验和理论基础,具有一定的理论意义和实际应用价值.

关键词：太赫兹密度泛函理论(DFT) 理论光谱 1-萘酚