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Design and Realization of Uniform Fiber Bragg Grating Used in Dense Wavelength Division Multiplexing Systems

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Semiconductor Photonics and Technology 2002年第2期8卷 96-101,128页

作者： LIUWer－ping DUGe 等 dept.ofelectron EngJinanUniversityGuangzhou510632CHN GuangzhouTelecom Guangzhou510600CHN

Relation of optical properties in a uniform fiber Bragg grating(FBG) with its grating parameters and the laser beam engraving conditions is analyzed. The principle and method for designing the uniform FBG used in dense wavelength division multiplexing(DWDM) system is given. By adopting the double exposure technique, with a uniform phase mask and Gaussian laser beam, the uniform FBG used in DWDM system is designed and engraved, whose bandwidth of the main reflection band is about 0.4 nm and 0.7 nm at -5 dB and -25 dB respectively.

关键词：波分复用光纤布拉格光栅设计密集

ALGEBRAIC SOLUTIONS OF ALGEBRAIC DIFFERENTIAL EQUATIONS

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Applied Mathematics(A Journal of Chinese Universities) 2005年第1期20卷 45-50页

作者： GaoLingyun dept.ofMath. JinanUniversityGuangdong510632China.

Using value distribution theory and techniques,the problem of the algebroid solutions of second order algebraic differential equation is *** show that the results are sharp.

关键词： algebraic solution algebroid function differential equations.

Effect of Clenbuterol Hydrochloride on the in vitro Development of Mouse Embryo

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Journal of Reproduction and Contraception 2002年第3期13卷 146-151页

作者： Li-huaLU Wei-jieZHU JingLI CenterforReproductiveImmunologyResearch JinanUniversityGuangzhou510632China dept.ofPathophysiology MedicalCollegeJinanUniversityGuangzhou510632China

To investigate the effect of clenbuterol hydrochloride on the in vitro development of both 1 cell and 2 cell mouse embryos. Methods The cultural systems of both 1 cell and 2 cell mouse embryo were used to determine the effect of clenbuterol hydrochloride at doses of 1 ng/mL, 3 ng/mL, and 10 ng/mL on developmental rates of mouse embryos. Results When 1 cell embryos cultured with 1 ng/mL of clenbuterol hydrochloride, developmental rates from the 4 cell stage to blastocyst stage were significantly lower than those in the control group (P0.05). However, at levels of 3 ng/mL and 10 ng/mL, significant decrease of developmental rates in 2 cell embryos was observed from the 4 cell and from the 8 cell stage, respectively (P<0.05). Embryos cultured with clenbuterol hydrochloride appeared to have more granules, fragments and degeneration than those in the control. Conclusion Clenbuterol hydrochloride has a toxic effect on the mouse embryos, and the effect is in a dose dependent. 1 cell mouse embryos cultured with clenbuterol hydrochloride could be easily inhibited at 2 cell stage, but the effect of clenbuterol hydrochloride on development of the late 2 cell embryos would be reduced.

关键词： clenbuterol hydrochloride mouse embryo in vitro culture

The Expression and Change of the β_3 Integrin Subunit and Fibronectin in Normal Human Oviductal Tissue and Tubal Ectopic Pregnant Tissue

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Journal of Reproduction and Contraception 2003年第4期14卷 193-200页

作者： Chun-jieMA Wei-jieZHU Hai-yanJIN Guang-yuJIANG HongSHEN HongLI Ming-hanXIA CenterforReproductiveImmunologyResearch JinanUniversityGuangzhou510632China dept.ofGynecology＆Obstetrics MedicalCollegeJinanUniversityGuangzhou510632China dept.ofPathology theFirstAffiliatedHospitalMedicalCollegeJinanUniversityGuangzhou510632China dept.ofPathology theFirstMilitaryMedicalUniversity.Guangzhou510515China

Objective To investigate the expression and change of the β3 integrin subunit and fibronectin in normal human oviductal tissue during various phases of the menstrual cycle and tubal ectopic pregnant tissueMethods Samples of normal ( n=29 ) and pregnant fallopian tube ( n=22 ) tissues were obtained from women who had normal cycle and history of normal pregnancy. Normal oviductal tissue samples were divided into 4 groups based on their menstrual cycle. Both expression and distribution of the β3 subunit and fibronectin were determined with the immunohistochemical method and the image analysis.Results The β3 subunit was expressed in the cytoplasm of ciliated cells. The expression level of the β3 subunit was higher after ovulation than that before ovulation in isthmus epithelium (P0.05). Fibronectin was expressed in the basement membrane of human oviductal epithelium and matrix. The expression level of fibronectin was higher in the hyperplastic phase than that in the secretory one (P<0.001). And it was lower in normal tubal tissue of the secretory phase than that in tubal ectopic pregnant tissue (P<0.001).Conclusion Theβ3 integrin subunit was expressed in the ciliated cells of human oviductal epithelium, and fibronectin was expressed in the basement membrane of human oviductal epithelium and matrix. Their expression and change in oviductal tissue is based on different phases of menstrual cycle. The β3 subunit could not related to th

关键词： β3 sintegrin fibronectin human fallopian tube tubal ectopic pregnancy

Single Photon Detection of InGaAs/InP APD Based on Gated-mode Operation at Telecom Wavelengths

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Semiconductor Photonics and Technology 2005年第2期11卷 73-77页

作者： LIAOChang-jun WANGJin-dong LüHua PengXiao-dong GUOJian-ping LIRi-hao ZHAOFeng WEIZheng-jun ZHOUJin-yun FengJin-yuan LIUWei-ping LIUSong-hao SchoolofInform.andOpto-Electron.Sci.andeng. SouthChinaNormalUniversityGuangzhou510631CHN dept.ofAppl.Phys. SouthChinaUniversityofTechnologyGuangzhou510641CHN IndustrialUniversityofGuangdong Guangzhou510090CHN dept.ofelectron.Eg. JinanUniversityGuangzhou510632CHN

Based on the commercially available avalanche photodiodes, the basic needs of gated-mode operation for single photon are discussed. Gated-mode technique based on the experimental data for detection of single photon is analyzed at communication wavelengths so that the basic operation parameters can decide properly for efficient detection of single photon. The bias voltage has related to the punch-through voltage in combining the cooling technique with synchronization to decrease the dark counts.

关键词：单光子检测量子光学雪崩光电二极管选通模式

The role of attachment in the pathogenesis of endometriosis

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中国组织化学与细胞化学杂志 2004年第3期13卷 382-382页

作者： HaiyanJin ZinengWang WeinanZhu dept.ofObstet.＆Gynecol. MedicalCollegeJinanUniversityGuangzhou510632P.R..China