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Frontiers of Materials Science 2013年第2期7卷 129-142页

作者： jian-guang zhang Xiu-Mei MO Biomaterials and Tissue Engineering Lab College of Chemistry Chemical Engineering & Biotechnology Donghua University Shanghai 201620 China

Silk fibroin （SF） is a kind of natural polymers with a great potential in biomedical application. Due to its good biocompatibility, biodegradability and minimal inflammatory reaction, SF is an excellent candidate for generating tissue engineering scaffolds. Electrospinning is a simple and effective method to fabricate nanofibers, which has several amazing characteristics such as very large surface area to volume ratio, flexibility in surface functionalities, and superior mechanical performance. The electro- spun nanofibers from SF and its blends have been used for varied tissue engineering. This paper will give a brief review about the structure, properties and applications of SF and blend nanofibers via electrospinning.

关键词： electrospinning nanofiber silk fibroin (SF) biodegradable polymer

Shoot drying and its cause in Calamus simplicifolius at Nanmeiling, Hainan, China

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Journal of Forestry Research 2011年第4期22卷 681-684页

作者： LI Rong-sheng YIN guang-tian YANG Jin-chang ZOU Wen-tao LI jian-guang zhang Shuai JIA Rui-feng KOU Liang WANG Dong-guang Research Institute of Tropical Forestry Chinese Academy of ForestryGuangzhou 510520 Gaangdong Province P.R. China

Many stems are subject to shoot drying in the plantations of Calamus simplicifolius Wei at the Nanmeiling Base of the Forestry Bureau of Baisha County, Hainan Province. As a palm, stems of C simplicifolius stop growing and later die if the shoots are dry. Generally, shoot drying means reduced cane production and reduced profit for a rattan plantation. We aimed to quantify the incidence of shoot drying and determine its reason. We sampled eight 20 m × 20 m plots in the C simplicifolius plantations. In each plot, we counted stems and categorized them as drying shoot or normal shoot, and mother stem or sucker stem. We measured stem length and categorized them as drying shoot and normal shoot for mother stems. We cut open each shoot-drying stem to determine the cause of drying from drying part to fresh part. The frequency of mother stems （259 stem·ha^-1）, was significantly lower than sucker stems （588 stem·ha^-1）. The percentage of shoot drying was 33.8% for mother stems, not significantly higher than that for sucker stems （18,9%）. The mother shoot stems were significantly shorter if they were drying than if normal. 80% of stems with a drying shoot were hollow within the leaf sheath, whereas 10% hosted lively mature larvae （one larvae per shoot） and 10% hosted several lively young larvae. Mature larvae were identified as the Red Palm Weevil, Rhynchophorus ferrugineus Oliver. To confirm the present of the weevil, three pheromone traps for the weevil were set up in the plantations and adult weevils were trapped on the next day and identified as the Red Palm Weevil. We conclude that shoot drying of C. simplicifolius is probably caused by the Red Palm Weevil.

关键词： Calamus simpliciJolius rattan shoot drying Red Palm Wee-vil Rhynchophorus ferrugineus

Two Winding Transformer Equivalent Model of Three Winding Transformers for MATPOWER

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Two Winding Transformer Equivalent Model of Three Winding Tr...

作者： Md Munna Talukder jian-min zhang Yong-jian zhang jian-guang zhang School of Automation Hangzhou Dianzi University State Grid Shaoxing Electric Power Supply Company

MATPOWER is one of wide used authoriterative open source software of power flow calculation in the ***,it only provides a model of the two-winding transformer thus limiting its application in power system with a three-winding transformer which is very popular in the power *** paper proposes a method to convert three-winding transformer into a model with two-winding transformer *** effectiveness of treatment method has been proved through a case study of the power system.

关键词： MATPOWER Three winding transformer Two winding transformer Equivalent model Power flow calculation

Ethanol modulates sensory information processing in cerebellar cortex

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Ethanol modulates sensory information processing in cerebell...

中国神经科学学会第十二届全国学术会议

作者： Mao-Cheng Wu guang-jian zhang De-Lai Qiu Key Laboratory of Cellular Function and Pharmacology of Jilin Province Yanbian University

Overdose intake of ethanol can impair cerebellar cortical neurons to integrate and transfer external information, resulting in a dysfunction of cerebellar motor regulation or cerebellar ataxia. We recently investigated the effects of ethanol on sensory stimulation-evoked responses in the cerebellar cortex of urethane-anesthetized mice, by electrophysiological and pharmacological methods. We found that ethanol dosedependently inhibited the facial stimulation evoked field potential responses in cerebellar granule cell layer, whereas ethanol bidirectional modulate the sensory stimulation-evoked responses in molecular layer via GABAA receptor. In vivo patch-clamp recordings showed that ethanol dose-dependently inhibited the facial stimulation-evoked outward currents of cerebellar Purkinje cells（PCs）. The ethanol-induced inhibition of facial stimulation-evoked outward currents were significantly abrogated by cannabinoid receptor 1（CB1） antagonists and agonist. The ethanol-induced inhibition of facial stimulation-evoked outward currents was prevented by cerebellar surface perfusion of the PKA inhibitors H-89, but not by intracellular administration of the PKA inhibitor PKI. Our present results indicate that ethanol inhibits the facial stimulation-evoked outward currents by activating presynaptic CB1 receptors via the PKA signaling pathway, suggesting that ethanol overdose impairs sensory information processing, at least in part, by inhibiting GABA release from molecular layer interneurons onto PCs. In addition, ethanol inhibited the spontaneous CS-evoked pause in simple spike firing and in the amplitude of the afterhyperpolarization via activation of CB1 receptors in vivo in mice, suggesting that excessive ethanol intake inhibits climbing fiber–PC synaptic transmission by modulating CB1 receptors in the cerebellar cortex.

关键词： Ethanol Cerebellar Purkinje cell sensory stimulation in vivo whole-cell patch-clamp recording complex spike cannabinoids receptor 1 protein kinase A

Two submental island flaps for reconstructing oral and maxillofacial defects following cancer ablation

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中国口腔颌面外科杂志 2008年第B5期6卷 191-192页

作者： Wei Liang Chen Jin Song Li Zhao Hui Yang jian guang Wang Bin zhang Department of Oral and MaxiUofacial Surgery the secondAffiliated Hospital of Sun Yat-sen University 107 Yan-jiangRoad Guangzhou 510120 China

Correlation between detrusor collagen content and lower urinary tract symptoms in patients with prostatic obstruction

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Correlation between detrusor collagen content and lower urin...

第十五届全国泌尿外科学术会议

作者： YANG Jin-yi, jiang Xin-jin, Ye Lin, LIU jian-guang, zhang BoZong Hai-ying 辽宁省大连市友谊医院泌尿外科

PURPOSE: We used computerized imaging analysis to compare the collagen content of detrusor specimens between patients affected with symptomatic obstructive benign prostatic hyperplasia (BPH) and asymptomatic controls.

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Roles of N-methyl-D-aspartate receptors during the sensory stimulation-evoked field potential responses in mouse cerebellar cortical molecular layer

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Roles of N-methyl-D-aspartate receptors during the sensory s...

中国生理学会张锡钧基金会第十四届全国青年优秀生理学学术论文交流及评奖会议、中国生理学会第十二届全国青年生理学工作者学术会议

作者：玄芳玲 guang-jian zhang Yin-Hua Xu Chun-Ping Chu De-Lai Qiu Key Laboratory of Cellular Function and Pharmacology of Jilin Province Yanbian University Department of Physiology and Pathophysiology College of MedicineYanbian University

The functions of N-methyl-D-aspartate receptors(NMDARs)in cerebellar cortex have been widely studied under in vitro condition,but their roles during the sensory stimulation-evoked responses in the cerebellar cortical molecular layer in living animals are currently *** here investigated the roles of NMDARs during the air-puff stimulation on ipsilateral whisker pad-evoked field potential

关键词： Roles of N-methyl-D-aspartate receptors during the sensory stimulation-evoked field potential responses in mouse cerebellar cortical molecular layer

胃癌组织中P27表达与cyclin D_1、cyclin E表达的相关性

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世界华人消化杂志 2007年第36期15卷 3809-3814页

作者：张广建寇有为王强辽宁省第三人民医院外科辽宁省开原市112300 中国医科大学盛京医院普外科辽宁省沈阳市110004

目的:检测胃癌组织中P27的表达及其与cyclin D_1、cyclin E表达的相关性,并探讨其意义.方法:临床病理资料齐全的胃癌蜡块标本54例,正常胃黏膜标本15例,采用SP免疫组化方法检测P27、cyclin D和cyclin E在其中的表达.结果:胃癌组织54例中... 详细信息

目的:检测胃癌组织中P27的表达及其与cyclin D_1、cyclin E表达的相关性,并探讨其意义.方法:临床病理资料齐全的胃癌蜡块标本54例,正常胃黏膜标本15例,采用SP免疫组化方法检测P27、cyclin D和cyclin E在其中的表达.结果:胃癌组织54例中有20例P27表达阳性(37.0%),正常胃组织中15例有11例P27呈阳性表达(73.3%),胃癌组织与正常胃组织相比,P27的表达有明显差异(P0.05),而与TNM分期及有无淋巴结转移明显相关(P0.05).结论:胃癌组织中P27表达与正常胃组织有显著差异,胃癌组织中P27蛋白表达与淋巴结转移及临床分期密切相关,与cyclin E的表达呈负相关.

关键词：胃癌 P27 周期蛋白D1 周期蛋白E

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相变微胶囊单体破坏极限的评估方法

实验力学 2018年第1期33卷 17-23页

作者：陈通彭光健张泰华浙江工业大学机械工程学院微/纳米力学测试技术与应用研究所

以密胺树脂壳石蜡相变微胶囊为研究对象,通过激光粒度仪测定微胶囊的粒径分布,借助激光共聚焦显微镜选取典型粒径的微胶囊单体（记录其直径和形貌）,采用纳米压入仪和平底压头测试不同粒径微胶囊单体的破坏载荷。基于对称变形和体积守... 详细信息

以密胺树脂壳石蜡相变微胶囊为研究对象,通过激光粒度仪测定微胶囊的粒径分布,借助激光共聚焦显微镜选取典型粒径的微胶囊单体（记录其直径和形貌）,采用纳米压入仪和平底压头测试不同粒径微胶囊单体的破坏载荷。基于对称变形和体积守恒假设,建立微胶囊单体破坏极限的评估方法。研究发现,微胶囊单体破坏载荷随粒径的增大近似成线性增大,但其压缩破坏应变和环向破坏应变均与粒径大小无关,分别为34.5%±3.0%和34.2%±5.1%。因此,可采用压缩破坏应变或环向破坏应变表征微胶囊单体破坏极限。

关键词：相变微胶囊破坏载荷破坏极限压缩应变环向应变

Clinical significance of elevating serum CA125 levels in patients

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Clinical significance of elevating serum CA125 levels in pat...

第十五届全国泌尿外科学术会议

作者： YANG Jin-yi, jiang Xin-jin, Wei-wei,Ye Lin, LIU jian-guang, zhang Bo Zong Hai-ying 辽宁省大连市友谊医院泌尿外科

Objective To evaluate the changes and clinical significance of serum CA125 levels in patients with metastatic bladder carcinoma. Methods Serum concentrations of CA125 were examined by means of electrochemiluminescence technique in 58 cases metastatic bladder cancer, 30 cases of superficial ones and 8 cases of other urological conditions. Results Of the 58 patients 39(67.2%) had increased CA125.

关键词： bladder neoplasms , carcinoma CA125 antigen