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International Journal of Ophthalmology(English edition) 2012年第1期5卷 50-54页

作者： Xiao-Nan Sun jin-song Zhang Department of Ophthalmology the Fourth Affiliated Hospital of China Medical University Shenyang 110005 Liaoning Province China

AIM: Many studies have demonstrated N-methyl-D-aspartate receptor-1-subunit (NMDAR1) is associated with amblyopia. The effectiveness of levodopa in improving the visual function of the children with amblyopia has also been proved. But the mechanism is undefined. Our study was to explore the possible mechanism. METHODS: Sixty 14-day-old healthy SD rats were randomly divided into 4 groups, including normal group, monocular deprivation group, levodopa group and normal saline group, 15 rats each. We sutured all the rats' unilateral eyelids except normal group to establish the monocular deprivation animal model and raise them in normal sunlight till 45-day-old. NMDAR1 was detected in the visual cortex with immunohistochemistry methods, Western Blot and Real time PCR. LD and NS groups were gavaged with levodopa (40mg/kg) and normal saline for 28 days respectively. NMDAR1 was also detected with the methods above. RESULTS: NMDAR1 in the visual cortex of MD group was less than that of normal group. NMDAR1 in the visual cortex of LD group was more than that of NS group. CONCLUSION: NMDAR1 is associated with the plasticity of visual development. Levodopa may influence the expression of NMDAR1 and improve visual function, and its target may lie in the visual cortex.

关键词： levodopa N-methyl-D-aspartate receptor monocular deprivation

Genome-editing technologies and their potential application in horticultural crop breeding

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Horticulture Research 2015年第1期2卷 224-233页

作者： jin-song Xiong jing Ding Yi Li College of Horticulture Nanjing Agricultural UniversityNanjingJiangsu Province 210095The People's Republic of China Department of Plant Science and Landscape Architecture University of ConnecticutStorrsCT 06269USA

Plant breeding,one of the oldest agricultural activities,parallels human *** crops have been domesticated to satisfy human's food and aesthetical needs,including numerous specialty horticultural crops such as fruits,vegetables,ornamental flowers,shrubs,and *** varieties originated through selection during early human *** technologies,such as various forms of hybridization,mutation,and transgenics,have also been invented and applied to crop breeding over the past *** progress made in these breeding technologies,especially the modern biotechnology-based breeding technologies,has had a great impact on crop breeding as well as on our ***,we first review the developmental process and applications of these technologies in horticultural crop ***,we mainly describe the principles of the latest genome-editing technologies and discuss their potential applications in the genetic improvement of horticultural *** advantages and challenges of genome-editing technologies in horticultural crop breeding are also discussed.

关键词： breeding crops potential

Silver(I) Oxide Mediated Regioselective Monoacylation of 2,4-Dihydroxyls in L-Rhamnopyranosides

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Chinese Chemical Letters 2006年第8期17卷 1009-1012页

作者： Qian YANG Xing Mei ZHU jin song YANG Ministry of Education Key Laboratory of Drug Targeting School of Pharmacy Sichuan University Chengdu 610041

A series of acyls （Ac, Bz and Ts） were introduced regioselectively to the 2-hydroxyl in methyl and ally 3-O-benzyl-α-L-rhamnopyranosides mediated by silver（I） oxide in the presence of a catalytic amount of potass... 详细信息

关键词： Silver(Ⅰ) oxide acylation regioselectivity,α-L-rhamnopyranoside.

Decompositions of the Hardy space _z^1(Ω)

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Acta Mathematica Sinica,English Series 2005年第4期21卷 949-954页

作者： Zeng Jian LOU Shou Zhi YANG Dao jin song Department of Mathematics Shantou University Shantou 515063 P. R. China Teaching Division of Computer Science Shandong University of Technology Zibo 255091 P. R. China

We give a decomposition of the Hardy space Hz^1（Ω） into ＂div-curl＂ quantities for Lipschitz domains in R^n. We also prove a decomposition of Hz^1（Ω） into Jacobians det Du, u ∈ W0^1,2 （Ω,R^2） for Ω in R^2.... 详细信息

关键词： Hardy space Lipschitz domain, Jacobian determinant

Electromagnetic Ion Beam Instability in the Solar Corona

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Research in Astronomy and Astrophysics 2024年第2期24卷 171-179页

作者： Wen Liu jin-song Zhao De-jin Wu Huan-Yu Jia Si-Ming Liu School of Mechanics and Aeronautics Southwest Jiaotong UniversityChengdu 610000China School of Physical Science and Technology Southwest Jiaotong UniversityChengdu 610000China Key Laboratory of Planetary Sciences Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China

Remote-sensing measurements indicate that heavy ions in the corona undergo an anisotropic and mass-charge dependent energization.A popular explanation to this phenomenon is the damping of the Alfven/ion cyclotron *** this paper,we propose that the ion beam instability can be an important source of the Alfven/ion cyclotron waves,and we study the excitation of the ion beam instability in the corona at the heliocentric distance~3R_(⊙)and the corresponding energy transfer process therein ba sed on plasma kinetic *** results indicate that the existence of the motionless heavy ions inhibits the ion beam ***,the anisotropic beams of heavy ions promote the excitation of the ion beam ***,the existence ofαbeams can provide a second energy source for exciting beam ***,when both the proton beam and the a beam reach the instability excitation threshold,the proton beam driven instability excites ***,the excitation threshold of the Alfven/ion cyclotron instability driven by ion beam is of the local Alfven speed or even less in the corona.

关键词： plasmas-instabilities-waves-Sun corona

Calibration of Soil Electromagnetic Conductivity in Inverted Salinity Profiles with an Integration Method

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Pedosphere 2007年第2期17卷 246-256页

作者： YAO Rong-Jian YANG jin-song LIU Guang-Ming Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China）.

Various calibration methods have been propounded to determine profiles of apparent bulk soil electrical conductivity (ECa) and soil electrical conductivity of a saturated soil paste extract (ECe) or a 1:5 soil water extract (EC1:5) using an electromagnetic induction instrument (EM38). The modeled coefficients, one of the successful and classical methods hitherto, were chosen to calibrate the EM38 measurements of the inverted salinity profiles of characteristic coastal saline soils at selected sites of Xincao Farm, Jiangsu Province, China. However, this method required three parameters for each depth layer. An integration approach, based on an exponential decay profile model, was proposed and the model was fitted to all the calibration sites. The obtained model can then be used to predict EC1:5 at a certain depth from electromagnetic measurements made using the EM38 device positioned in horizontal and vertical positions at the soil surface. This exponential decay model predicted the EC1:5 well according to the results of a one-way analysis of variance, and the further comparison indicated that the modeled coefficients appeared to be slightly superior to, but not statistically different from, this exponential decay model. Nevertheless, this exponential decay model was more significant and practical because it depended on less empirical parameters and could be used to perform point predictions of EC1:5 continuously with depth.

关键词： coastal saline soils electromagnetic conductivity exponential decay model integration calibration method inverted salinity profiles

A Novel Biosensor for the Rapid Determination of Biochemical Oxygen Demand

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Biomedical and Environmental Sciences 2007年第1期20卷 78-83页

作者： jin-song CHEN LI-SHENG ZHANG JIAN-LONG WANG Laboratory of Environmental Technology INET Tsinghua University Beijing 100084 China

Objective To investigate the function of a novel biosensor used for the rapid determination of biochemical oxygen demand （BOD） which is developed by our research group based on suspended immobilized microbial cell system in a completely mixed determining chamber as a substitute of the traditional membrane system. Methods Activated sludge was immobilized by PVA gel and used as a bio-sensing element. The novel biosensor was used to measure the short time BOD value and the conventional cultivation method was used for BOD5 measurement. Results A linear relationship was observed for the difference between the current and the concentration of glucose-glutamic acid （GGA） solution below 200 mg/L with a correlation coefficient of 0.995. The optimal response of the sensor was obtained at pH 7.0 and 30℃. The sensor response was within 15 min and was reproducible within ±5% of the mean in a series of eight samples containing 75 mg/L BOD using standard GGA solution. The novel sensor response was found to be fairly constant over a period of 30 days, with ±5% fluctuations. Conclusion A relatively good agreement is found between BOD estimated by the novel BOD biosensor and that determined by the conventional 5-day BOD method. This novel BOD biosensor has good sensitivity, stability and reproducibility.

关键词： BOD BOD biosensor Wastewater Water quality Water pollution

Study on the subgrade deformation under high-speed train loading and water–soil interaction

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Acta Mechanica Sinica 2016年第2期32卷 233-243页

作者： Jian Han Guo-Tang Zhao Xiao-Zhen Sheng Xue-song jin State Key Laboratory of Traction Power Southwest Jiaotong University Chengdu 610031 China China Railway Corporation Beijing 100844 China

It is important to study the subgrade characteristics of high-speed railways in consideration of the water–soil coupling dynamic problem,especially when high-speed trains operate in rainy *** study develops a nonlinear water–soil interaction dynamic model of slab track coupling with subgrade under high-speed train loading based on vehicle–track coupling *** using this model,the basic dynamic characteristics,including water–soil interaction and without water induced by the high-speed train loading,are *** main factors-the permeability coefficien and the porosity-influencin the subgrade deformation are *** developed model can characterize the soil dynamic behaviour more realistically,especially when considering the influenc of water-rich soil.

关键词： Water–soil interaction High-speed train loading Finite difference method Subgrade deformation Permeability coefficien Porosity

ITO thin films prepared by electron beam evaporation with End-Hall ion source assisted without heating to the substrate

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光学精密工程 2005年第4期13卷 397-402页

作者： GAO jin-song XU Ying WANG Xiao-yi WANG Tong-tong Optical Technology and Research Center Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130022 China

ITO （indium oxide doped with tin） thin films were deposited on glass substrates by using ITO pellet with a composition of w（In2O3）=90% and w（SnO2）=10% by electron beam evaporated with End-Hall ion source assisted without extra heating. The rate of deposition and flow rate of oxygen were measured and changed to obtain the best properties of ITO thin films. Furthermore, the post annealing process was done in vacuum at different annealing temperatures for 2 h and at 400℃ for different keeping time, respectively. The relation between optical, electrical properties and structure was discussed in detail.

关键词： ITO 薄膜电子束离子源

Compact Ultra-wideband Microstrip Antenna with Metamaterials

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Chinese Physics Letters 2012年第11期29卷 60-62页

作者： XIONG Han HONG jin-song ZHU Qing-Yi jin Da-Lin School of Physical Electronics University of Electronic Science and Technology of ChinaChengdu 610054

An improved compact ultra-wideband(UWB)microstrip antenna with metamaterials is *** total size is slightly reduced and the measured impedance bandwidth operates from 3.84 to 22.77 GHz for a return loss of less than-10 *** with the original patch antenna,the bandwidth of this antenna is about six times ***,the antenna has an average gain of 6.2 dB,which is 1.2 dB larger than the original *** strong radiation in the horizontal direction and practical characteristics are ***,this antenna would have some specific applications for UWB wireless communications in the future.

关键词： antenna wideband return