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Quantum Theory of Femtosecond Soliton Propagation in Single-Mode Optical Fibers

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Communications in Theoretical Physics 2004年第6期41卷 943-948页

作者： chen shi-hua ZHANG Shao-Wu shi Du-Fang Department of Physics,huazhong University of Science and Technology,Wuhan 430074,China Department of Physics Huazhong University of Science and Technology Wuhan 430074 China

In this paper we have derived the generalized QNLS equation with considering the third-order dispersion andKerr dispersion,which can be applicable to the femtosecond regime and is suitable for discussing the quantum propertiesof femtosecond solitons in single-mode optical fibers,as compared with its classical *** quantum operatorequation can be solved by many methods such as the linearized perturbations and phase-space ***,owingto the fact that this quantum equation is rather similar to its classical counterpart,all these methods can be facilitatedto a great extent by citing correctly the classical results obtained before.

关键词： generalized QNLS equation single-mode-optical fibers third-order dispersion

An Improved Cooperative Tracking Model Used for Large-scale Social Foraging Swarm

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自动化学报 2006年第1期32卷 38-42页

作者： chen shi-Ming FANG hua-Jing Department of Control Science ＆ Engineering Huazhong University of Science ＆ Technology Wuhan 430074

An improved cooperative tracking model is proposed, which is based on the local information between mutually observable individuals with global object information, and this model is used for scalable social foraging swarm. In this model, the 'follower' individuals in the swarm take the center of the minimal circumcircle decided by the neighbors in the positive visual set of individual as its local object position. We study the stability properties of cooperative tracking behavior of social foraging swarm based on Lyapunov stability theory. Simulations show that the stable cooperative tracking behavior of the global social foraging swarm can be achieved easily, and beautiful scalability emerge from the proposed model for social foraging swarm.

关键词：跟踪模型稳定性可测量性 Lyapunov理论

Male Sterile Lines of Zinnia elegans and Their Cytological Observations

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Agricultural Sciences in China 2008年第4期7卷 423-431页

作者： YE Yao-mei HU Qiu-shi chen Tian-hua BAO Man-zhu Key Laboratory of Horticultural Plant Biology Ministry of Education/College of Horticulture and Forestry Sciences Huazhong Agricultural University Wuhan 430070 P.R.China

In order to find out a new pathway for utilizing heterosis of Zinnia elegans and accelerate breeding process, the mechanism of anther development of a male sterile line was explored. Backcross, sibmating, selling of fertile plants and testcross with inbred lines were analyzed and identified in the field, and cytology was observed. Recessive nucleus male sterile line AH209AB capable of being a maintainer was obtained by successive backcrosses with male sterile plants and fertile F1 plants as male parents. Cytological and anatomical studies indicated that：（1） The wall of normal anther was constituted of four layers of cells such as epidermis, powder chamber wall, middle level and tapetum cells. The process in meiosis of pollen mother cell in Zinnia elegans was normal and cytoplasm divided simultanously. Mature pollen grain was tricellular type. （2） The petal of male sterile plant degraded as a thread-like structure, the stamens were villiform in appearance and no pollens were formed. The result showed that the anther of male sterile plant no longer proceed to differentiate spore mother cell and the pollen sac after the formation of the tissue of sporogenous cells, there was no evident boundary between tapetum cell, middle lamella and inner wall of PMC, tapetal cells did not develop from the very beginning. So the abortion type was completely structural male sterility. The male sterile line belongs to non-sporange male sterile type and is of great use in F1 seeds production.

关键词： Zinnia elegans recessive nucleus male sterile anther development cytology

The Cyclicity of the Period Annulus Around the Quadratic Isochronous Center

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Wuhan University Journal of Natural Sciences 2001年第4期6卷 754-758页

作者： chen shi\|hua, Feng Jian\|wen, Zeng Xian\|wu School of Mathematics and Statistics, Wuhan University, Wuhan 430072, China School of Mathematics and Statistics Wuhan University Wuhan China

The number of the limit cycles bifurcating in small quadratic perturbations of quadratic systems with an ischronous center is studied, it turns out that the cyclicity of the period annulus around one kind of quadratic... 详细信息

关键词： cyclicity quadratic isochronous center perturbation

Structure Identification of Nonlinearly Coupled Complex Networks with Non-Delayed and Delayed Coupling

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Chinese Physics Letters 2010年第3期27卷 68-71页

作者：郭万里 Francis Austin 陈士华 School of Mathematics and Statistics Wuhan University Wuhan 430072 Department of Applied Mathematics The Hong Kong Polytechnic University Hong Kong

Topology identification is an important problem for complex networks because much information about networks in practice such as the topological structure is uncertain. We propose an adaptive control method for identifying the topology of general nonlinearly-coupled complex network models that are either non-delayed or delayed coupled. Simulation results are also presented to illustrate the effectiveness of the method.

关键词： Mathematical physics Statistical physics and nonlinear systems

Inhibitory effects of idoxifene on hepatic fibrosis in rats

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Acta Pharmacologica Sinica 2005年第5期26卷 581-586页

作者： Ya-jun ZHOU~2,Dong-mei YIN,Hong-shan chen,Jian-hua shi,Bao-xi SHA,Xing WANGDepartment of Biochemistry & Molecular Biology Medical College,Nan Tong University,Nantong 226001,China Department of Biochemistry & Molecular Biology Medical College Nan Tong University Nantong China

Aim:To investigate the effects of a tissue-specific selective estrogen receptormodulator,idoxifene,on hepatic fibrosis in ***:Hepatic fibrosis wasinduced by dimethylnitrosamine(DMN)in male *** DMN model of hepaticfibrosis and the hepatocytes undergoing oxidative stress were treated withidoxifene *** effect of idoxifene on hepatic fibrosis in the DMNmodel was examined by *** of idoxifene on antioxi-dant enzyme levels of copper,zinc-dependent superoxide dismutase(CuZn-SOD),and cellular glutathione peroxidase(GSHPx)were measured by *** ofidoxifene on activation,proliferation,and apoptosis of culture-activated hepaticstellate cells(HSC)were analysed by immunohistochemistry,bromodeoxyuridine(BrdU)uptake,and flow cytometry, respectively. Results:Idoxifene could mark-edly suppress DMN-induced hepatic fibrosis in male rats.A treatment of 0.4mg·kg-1·d-1of idoxifene reduced the protein levels of collagen in the DMN modelby 41.19%(P<0.05).Protein level of CuZn-SOD and activitiy of GSHPx in livertreated with DMN plus 0.4 ***-1·d-1of idoxifene were 2.65 times(P<0.05)and2.08 times greater(P<<0.05)than that of liver treated with DMN alone *** protein level of CuZn-SOD and activity of GSHPx in cultured rat hepatocytestreated with ferric nitrilotriacetate(FeNTA)plus 1×10-7mol/L of idoxifene were3.43 times(P<0.05)and 2.52 times(P<0.05)greater than that treated with *** could inhibit HSC *** with the control,theuptake of BrdU in HSC cultured with 1×10-7mol/L of idoxifene was reduced by51.87%(P<0.05),and the number of apoptotic HSCs cultured with 1×10-7mol/L ofidoxifene increased by 94.52%(P<0.05).Conclusion:Idoxifene showed inhibi-tory action on hepatic fibrosis in male rats.

关键词： fibrosis idoxifene oxidative stress hepatic stellate cell liver

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企业因果模糊理论评析

财经问题研究 2008年第9期 95-98页

作者：陈仕华东北财经大学工商管理学院辽宁大连116025

因果模糊理论是战略管理中的前沿课题,现已呈现出多个流派争鸣的态势,有必要进行梳理和总结。本文依据企业边界将因果模糊理论文献分为三类,并对各类文献进行梳理和评论,最后总结全文并提出有待研究的问题。

关键词：因果模糊企业边界持续竞争优势

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为“形”所困:形象传播的政治经济学批判

厦门大学学报（哲学社会科学版） 2020年第6期70卷 163-172页

作者：陈世华南昌大学新闻与传播学院江西南昌330031

从国家形象、企业形象到个人形象,形象传播崛起的背后蕴含了深刻的政治经济文化动因。形象传播以视觉转型趋势为思想根基,是政治权力的抗争形式,是形象商业价值的交易和变现,契合社会文化心理,是数字图像技术驱动下的产物。形象传播的... 详细信息

从国家形象、企业形象到个人形象,形象传播崛起的背后蕴含了深刻的政治经济文化动因。形象传播以视觉转型趋势为思想根基,是政治权力的抗争形式,是形象商业价值的交易和变现,契合社会文化心理,是数字图像技术驱动下的产物。形象传播的泛滥导致形象的拜物和异化,让人身陷形象的困局,助长图像的暴政。形象传播的出路在于与形象保持距离,理性看待形象,反抗形象的霸权,把握形象与内涵的和谐共存,回归真善美的形象传播伦理,建构批判性形象传播学,践行视觉行动主义,回归形象传播正轨。

关键词：形象传播政治经济学视觉转向

传播中国学术好声音:高校学报“走出去”战略研究

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河南大学学报（社会科学版） 2018年第4期58卷 143-148页

作者：陈世华南昌大学新闻与传播学院江西南昌330031 南昌大学学报编辑部江西南昌330047

高校学报"走出去"是传播中国学术好声音的重要一环,"走出去"的价值和意义在于:传播中国学术、贡献中国智慧,提高办刊质量、接轨国际学术。目前,"走出去"面临办刊理念落后、管理体制僵化、编辑素质欠佳、内容质量不高、形式不规范、传播... 详细信息

高校学报"走出去"是传播中国学术好声音的重要一环,"走出去"的价值和意义在于:传播中国学术、贡献中国智慧,提高办刊质量、接轨国际学术。目前,"走出去"面临办刊理念落后、管理体制僵化、编辑素质欠佳、内容质量不高、形式不规范、传播渠道单一等困境。高校学报应该通过政策保障,转变办刊理念,建设复合型编辑队伍,提高内容质量,规范形式,扩大传播路径,切实做好"走出去"工作。

关键词：高校学报走出去中国学术传播力