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Entanglement of Two-Superconducting-Qubit System Coupled with a Fixed Capacitor

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Chinese Physics Letters 2011年第5期28卷 42-45页

作者： TIAN li-Jun qin li-guo ZHANG Hong-Biao Department of Physics Shanghai UniversityShanghai 200444 Shanghai Key Lab for Astrophysics Shanghai 200234 Institute of Theoretical Physics Northeast Normal UniversityChangchun 130024

We study thermal entanglement in a two-superconducting-qubit system in two cases,either identical or *** calculating the concurrence of system,we find that the entangled degree of the system is greatly enhanced in the case of very low temperature and Josephson energies for the identical superconducting qubits and our result is in a good agreement with the experimental data.

关键词： identical system Fixed

Synthesis and photochemistry of novel bromo substituted stilbene derivatives as triplet state sensitizers for the generation of singlet oxygen

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Chinese Chemical Letters 2009年第12期20卷 1415-1418页

作者： Hong Ru li qin Yuan guo Ting Xie Fang Gao Sheng Tao Zhang College of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 China

We have presented the synthesis and characterization of three new bromo substituted stilbene derivatives, p-3,4,5-trimethoxy-p′- 2,3,4,5,6-pentabromostilbene （C1）, p-N,N-dimethylamino-p′-2,3,4,5,6-pentabromostilbene （C2） and p-N,N-diphenylamino-p′- 2,3,4,5,6-pentabromostilbene （C3） in this letter. The UV/vis absorption and photoluminescence were investigated in various solvents. The maximal absorption wavelength of C1 exhibited blue-shift to those of C2 and C3 in different solvents. No florescence emission could be detected for these compounds at room temperature. Singlet oxygen could be efficiently produced with these sensitizers under near-ultraviolet and visible light irradiation.

关键词： Synthesis Photochemistry Triplet state Bromo substitution Singlet oxygen

氯离子环境下钢筋混凝土构件多筋锈胀破坏模式

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东南大学学报（自然科学版） 2018年第3期48卷 528-536页

作者：张芹郭力郭小明东南大学土木工程学院南京210096 东南大学江苏省工程力学分析重点实验室南京210096

针对钢筋锈胀与氯离子扩散相互加强的非线性破坏过程开展了数值模拟研究,基于软件ABAQUS平台,通过二次开发,提出了考虑多根钢筋作用下氯离子扩散与混凝土损伤的过程耦合分析方法.根据已有文献的试验结果,验证了提出的过程耦合分析方法... 详细信息

针对钢筋锈胀与氯离子扩散相互加强的非线性破坏过程开展了数值模拟研究,基于软件ABAQUS平台,通过二次开发,提出了考虑多根钢筋作用下氯离子扩散与混凝土损伤的过程耦合分析方法.根据已有文献的试验结果,验证了提出的过程耦合分析方法的有效性.基于过程耦合分析方法,讨论了外部氯离子环境、初期混凝土中氯离子掺入量及配筋率对钢筋混凝土结构使用状态的影响.模拟结果表明:钢筋混凝土结构设计时应根据外部环境控制初期氯离子的掺入量;对于外部氯离子含量高的地区,表面出现损伤现象的结构应尽早采取维护措施;氯离子环境下,配筋率的提高会加速钢筋混凝土结构表面裂纹的出现.因此,设计处于高氯离子含量环境中的钢筋混凝土结构应考虑服役过程中结构渐近退化对其承载能力的影响.

关键词：氯离子过程耦合多筋锈蚀配筋率

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纯消相干对量子点-微腔激射性质的影响

光子学报 2016年第9期45卷 33-40页

作者：陈幸秦利国王琴南京邮电大学信号处理传输院南京210003 南京邮电大学宽带无线通信与传感网技术重点实验室南京210003 中国科学技术大学量子信息重点实验室合肥210000

应用量子主方程理论研究量子点-微腔耦合系统的激射性质.分别探索了不同类型的微腔耦合系统("好的系统"、"中等系统")在外加泵浦场的作用下表现出的激射现象.分析比较了失谐大小及环境纯消相干对这两种微腔耦合系统的内部特性(光场分布... 详细信息

应用量子主方程理论研究量子点-微腔耦合系统的激射性质.分别探索了不同类型的微腔耦合系统("好的系统"、"中等系统")在外加泵浦场的作用下表现出的激射现象.分析比较了失谐大小及环境纯消相干对这两种微腔耦合系统的内部特性(光场分布、腔内光子数等)产生的影响.数值仿真表明:对于"好的系统",在失谐量不大的情况下,引入适当的纯消相干有利于提高耦合系统的激射性能;对于"中等系统",由于失谐条件下光子在腔内集聚困难,因而很难达到激射,但是通过引入适量的纯消相干可以对腔内光场分布和光子数产生剧烈调制作用.该结果对于研究单量子点激光器,以及探索光与物质相互作用等方面具有指导作用.

关键词：量子点-腔纯消相干量子主方程激射失谐二阶相关函数

A mutation specific polymerase chain reaction for detecting hepatitis B virus genome mutations at nt551

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World Journal of Gastroenterology 2003年第3期9卷 509-512页

作者： Chun-ling Ma De-Xing Fang Hua-Biao Chen Fa-qing li Hui-Ying Jin Su-qin li Wei-guo Tan Huadong Research Institute for Medical Biotcchnics, Nanjing 210002, Jiangsu Province, China Huadong Research Institute for Medical Biotechnics Nanjing 210002 China. mchunling@***

AIM: The hepatitis B surface antigen (HBsAg) is considered to be one of the best markers for the diagnosis of acute and chronic HBV infection. But in some patients, this antigen cannot be detected by routine serological assays despite the presence of virus. One of the most important explanations for the lack of detectable HBsAg is that mutations which occur within the 'a' determinant of HBV S gene can alter expression of HBsAg and lead to changes of antigenicity and immunogenicity of HBsAg accordingly. As a result, these mutants cannot be detected by diagnosis assays. Thus, it is essential to find out specific and sensitive methods to test the new mutants and further investigate their distribution. This study is to establish a method to investigate the distribution of the HBsAg mutant at ***: A mutation specific polymerase chain reaction (msPCR) was established for amplifying HBV DNA with a mutation at nt551. Four sets of primer pairs, P551A-PPS,P551G-PPS, P551C-PPS and P551T-PPS, with the same sequences except for one base at 3' terminus were designed and synthesized according to the known HBV genome sequences and the popular HBV subtypes, adr and adw, in China. At the basis of regular PCR method, we explored the specific conditions for amplifying HBV DNAs with a mutation at nt551 by regulating annealing temperature and the concentration of these primers. 126 serum samples from patients of hepatitis B were collected, among which 16 were positive for HBV S DNA in the nested PCR amplification. These 16 HBV S DNAs were detected by using the msPCR ***: When the annealing temperature was raised to 71 °C, nt551A and nt551G were amplified specifically by P551A-PPS and P551G-PPS; At 72 °C and 5 pmole of the primers (each) in reaction of 25 μl volume, nt551C and nt551T were amplified specifically by P551C-PPS and P551TPPS. 16 of HBV S gene fragments were characterized by using this method. 14 of them were positive for nt551A, one was positive for nt551G

关键词：乙型肝炎病毒基因突变聚合酶链反应乙型肝炎表面抗原血清学检查

Reduced mesencephalic astrocyte-derived neurotrophic factor expression by mutant androgen receptor contributes to neurodegeneration in a model of spinal and bulbar muscular atrophy pathology

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Neural Regeneration Research 2025年第9期20卷 2655-2666页

作者： Yiyang qin Wenzhen Zhu Tingting guo Yiran Zhang Tingting Xing Peng Yin Shihua li Xiao-Jiang li Su Yang Guangdong Key Laboratory of Non-human Primate Research Key Laboratory of CNS Regeneration(Ministry of Education)Guangdong–HongKong–Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina

Spinal and bulbar muscular atrophy is a neurodegenerative disease caused by extended CAG trinucleotide repeats in the androgen receptor gene,which encodes a ligand-dependent transcription facto *** mutant androgen receptor protein,characterized by polyglutamine expansion,is prone to misfolding and forms aggregates in both the nucleus and cytoplasm in the brain in spinal and bulbar muscular atrophy *** aggregates alter protein-protein interactions and compromise transcriptional *** this study,we reported that in both cultured N2a cells and mouse brain,mutant androgen receptor with polyglutamine expansion causes reduced expression of mesencephalic astrocyte-de rived neurotrophic *** n of mesencephalic astrocyte-derived neurotrophic factor amelio rated the neurotoxicity of mutant androgen receptor through the inhibition of mutant androgen receptor *** down endogenous mesencephalic astrocyte-derived neurotrophic factor in the mouse brain exacerbated neuronal damage and mutant androgen receptor *** findings suggest that inhibition of mesencephalic astrocyte-derived neurotrophic factor expression by mutant androgen receptor is a potential mechanism underlying neurodegeneration in spinal and bulbar muscular atrophy.

关键词： androgen receptor mesencephalic astrocyte-derived neurotrophic factor mouse model neurodegeneration neuronal loss neurotrophic factor polyglutamine disease protein misfolding spinal and bulbar muscular atrophy transcription factor

An IR Study on Adsorption of CO and NO on Copper Ion-exchanged Zeolite Beta

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Chemical Research in Chinese Universities 1995年第2期11卷 91-97页

作者： ZHOU Qun,QIU Shi-lun and PANG Wen-qin(Key Laboratory of Inorgaanic Hydrothermal Synthesis,Department of Chemistry,Jilin University,Changchun,130023)XIN qin and li guo-qiang(Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,116023) JIliN UNIV DEPT CHEMKEY LAB INORGAN HYDROTHERMAL SYNTHCHANGCHUN 130023PEOPLES R CHINA CHINESE ACAD SCI DALIAN INST CHEM PHYSKEY LAB CATALYSISDALIAN 116023PEOPLES R CHINA

Thee adsorption of CO and NO on copper ion-exchanged zeolite Beta was investigated using IR *** was found that the thermalvacuum pretreatment procedure could result in the reduction of Cu2+ions in zeolite *** adsorption of CO on Cu+sites in zeolite Beta closely follows Langmuir *** Cu+species may form during the reaction between water and *** catalytic decomposition of NO on the zeolite was observed at room temperature,indicating that the decomposition reaction may occur between two coordinated NO ligands of the same dinitrosyhc ***,the appearance of two series of NO adsorption bands reveals that copper ions existing at different cation sites may have different effect on the adsorption and decomposition of NO molecules.

关键词： Copper Zeolite Beta CO adsorption NO adsorption IR spectroscopy

A Wind Tunnel Experimental Study on the Wake Characteristics of a Horizontal Axis Wind Turbine

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Journal of Thermal Science 2025年第1期34卷 145-158页

作者： guo Xingduo li Yinran li Rennian MA Yulong WEI Kui College of Energy and Power Engineering Lanzhou University of Technology Key Laboratory of Fluid Machinery and Systems Gansu Provincial Technology Centre for Wind Turbines

The characteristics of wind turbine wakes are influenced by multiple factors,including the atmospheric boundary layer(ABL) wind and wind turbine operating conditions(e.g.,tip speed ratio and yaw angle).In this study,two types of ABL winds with different velocity gradients and turbulence intensities are generated in a wind tunnel through configurations of spires,baffles,and various numbers of roughness elements.A wind turbine with a rotor diameter of 0.8 m and a hub height of 0.6 m is tested under varying tip speed ratios,yaw angles,and ABL wind *** results indicate that the streamwise velocity deficit in the near-wake region becomes more pronounced with an increase in the tip speed ratio,while the far-wake velocity deficit remains largely unaffected by changes in the tip speed *** the yaw angle increases,the wake deflection becomes more prominent and the wake narrows;the offset of the wake center at various downstream positions grows linearly,reaching a maximum value of approximately half the rotor ***,the turbulence level and influence range in the wake region are reduced when the turbine is *** ABL wind conditions,high turbulence intensity in the incoming flow accelerates wake recovery,and the Reynolds stress at different lateral positions tends to become consistent with increasing longitudinal ***,turbulence has a significant impact on the meandering characteristics of the wind turbine wake,with greater fluctuations in the wake center observed under higher turbulence ***,this study provides insights that could inform the optimal operation of wind farms.

关键词： horizontal axis wind turbine turbulence wind tunnel experiment wind turbine wake

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冷藏集装箱分类及其在冷链物流中的应用

保鲜与加工 2017年第3期17卷 118-123页

作者：李勤国天津商业大学天津300134

冷藏集装箱作为重要的专业冷藏运输设备,其在冷链运输中发挥着重要作用。本文介绍了冷藏集装箱在当今冷链物流中的作用、分类、简介、特点及其主要应用,同时对未来的发展趋势作了阐述,为冷藏集装箱的设计和发展提供参考。

关键词：冷藏集装箱冷链制冷