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A single sign-on scheme supporting double authentication method
支持双认证方式的单点登录方案

YANG Zhi,CHEN Xing-yuan,ZHANG bin,
杨智
,陈性元

计算机应用 , 2007,
Abstract: The requirement of supporting multiple authentication in single sign-on scheme often complicates the realization of authentication protocol and cross-realm authentication. A flexible single sign-on scheme that supported certificate, password and their combination authentication was proposed. In this scheme, the protocol template and the temporary certificate ticket were adopted to avoid the repeat design of authentication protocols and simplify the trust models of cross-realm authentication.
Effects of cadmium stress on the growth and physiological characteristics of Lonicera japonica.
镉胁迫对金银花生理生态特征的影响

LIU Zhou-li,HE Xing-yuan,CHEN Wei,
刘周莉
,何兴元,陈玮

应用生态学报 , 2009,
Abstract: 采用水培试验方法,研究了不同浓度镉(Cd)(0、5、10、25和50 mg·L-1) 胁迫条件下藤本植物金银花的生长和生理特性.结果表明: 与对照相比,Cd胁迫对金银花的生长未造成明显影响,在5~50 mg·L-1 Cd处理下,其生物量无明显差异(P>0.05),在低浓度Cd(5 mg·L-1)处理下生物量有所增加,叶、根生物量和总生物量分别增加了2.88%、2.33%和1.25%,说明金银花对Cd具有较强的抗性.在低浓度Cd胁迫下,植物各器官的含水量和可溶性蛋白含量均有所降低,而根系和叶片的丙二醛含量分别增加51.90%和23.07%,叶绿素和类胡萝卜素含量则增加15.87%和24.89%,超氧化物歧化酶活性也显著增强.随着Cd浓度的增高,金银花体内的叶绿素和类胡萝卜素含量,以及超氧化物歧化酶活性均有所降低.
A Study on the Urban Financial Radiation in the Yangtze River Delta
长三角城市金融辐射力研究

TANG Ji-ping,CHEN Hao,YAO Xing-yuan,
唐吉平
,陈浩,姚星垣

浙江大学学报(人文社会科学版) , 2005,
Abstract: 金融辐射力是理解城市金融竞争力的一个重要方面,但是往往难以进行定量的研究.经济地理理论中的威尔逊模型为解决金融辐射的问题提供了洞见.选取经调整后的外商直接投资和上海证券交易所的融资额作为度量长三角各城市外向融资总量指标,用它来计算金融阻力.影响城市接受金融辐射的能力有两个主要因素:一个是城市的位置,另一个是金融阻力,后者反映了地方政府吸引资金的能力和意愿.用剔除了地理因素影响的金融阻力因素来度量各中心城市接轨上海的能力以及各自的金融影响力,并计算出它们的辐射半径,可见,长三角主要城市已经形成了一个联系紧密的网络,各城市的区域相互重叠,金融资源频繁互动的格局已基本形成.
DIELECTRIC RELAXATIONS IN FERROELECTRIC COPOLYMER VINYLIDENE FLUORIDE(65)/TRIFLUOROETHYLENE(35)

ZHANG XING-YUAN,

中国物理 B , 1995,
Abstract:
Theoretical study of structural stabilities of BiXO3 (X= Cr, Mn, Fe, Ni)
BiXO3 (X= Cr, Mn, Fe, Ni)结构稳定性的第一性原理研究

Luo Zui-Fen,Chen Xing-Yuan,Lin Shi-Yuan,Zhao Yu-Jun,
骆最芬
,陈星源,林诗源,赵宇军

物理学报 , 2013,
Abstract: The stable chemical potential phases of BiXO3 (X= Cr, Mn, Fe, Ni) are studied by density functional theory with the consideration of thermodynamics equilibrium conditions. It is found that the BiFeO3 and BiCrO3 have stable chemical potential regions and are expected to be synthesized, under thermodynamic equilibrium conditions. On the contrary, no stable regions are found for BiMnO3 and BiNiO3, indicating that they are hard to synthesize. Therefore the approaches to their preparation under non-thermodynamic equilibrium conditions should be considered.
XML document latent information extractionalgorithm based on D-S evidence theory
基于D-S证据理论的XML文档潜在信息获取算法

CHEN Hua-cheng,DU Xue-hui,CHEN Xing-yuan,XIA Chun-tao,
陈华城
,杜学绘,陈性元,夏春涛

计算机应用研究 , 2013,
Abstract: Traditional XML document retrieval methods are mainly based on keywords' match, which ignore keywords' semantics and latent information contained in information combination. This paper proposed an algorithm of XML document latent information extraction based on D-S evidence theory. Firstly it used ontology to define the relationships between semantic concepts and the combination mode, and next proposed a retrieval model based on D-S evidence theory. Then it presented the computation of evidence weight, and finally designed a dynamic threshold with plausible function. It solved the problems of uncertainty in semantic match and retrieve of latent information. Furthermore, it presented the algorithm's application in the detection of personal and enterprises' sensitive information in e-government domain. The experiment proves that the proposed algorithm has higher precision and recall.
Effects of exogenous nitric oxide on drought-resistance of poplar seedlings with different drought-tolerance
一氧化氮对不同耐旱性杨树幼苗抗旱性的影响

FU Shi-lei,ZHOU Yong-bin,HE Xing-yuan,CHEN Wei,
付士磊
,周永斌,何兴元,陈玮

生态学杂志 , 2007,
Abstract: 以乡土树种小青杨(Populus pseudo-simonii Kitag)和速生品种欧美杨107杨(Populus × euramericana cv."74/76")幼苗为试验材料,在水分胁迫条件下研究不同浓度的外源NO供体硝普纳(sodium nitroprusside, SNP)对2种杨树抗旱性的影响.结果表明,经不同浓度SNP处理后,2种杨树叶片水势对干旱胁迫的敏感程度下降,气孔导度降低,蒸腾作用减弱,叶片含水量升高,保水能力增强.同时,SNP处理能提高杨树叶片可溶性糖和可溶性蛋白含量,降低杨树叶片相对电导率,使杨树在干旱条件下的抗脱水能力提高,减轻了干旱胁迫对细胞膜的伤害.从品种间作用效果看,SNP对107杨的抗旱性提高的幅度高于小青杨,表明SNP更有利于提高速生杨的抗旱能力.
Simulation of three-dimensional green biomass of urban forests in Shenyang City and the factors affecting the biomass.
沈阳城市森林三维绿量模拟及其影响因子

LIU Chang-fu,HE Xing-yuan,CHEN Wei,ZHAO Gui-ling,XUE Wen-duo,
刘常富

应用生态学报 , 2008,
Abstract: Based on the fractal theory of forest growth, stepwise regression was employed to pursue a convenient and efficient method of measuring the three-dimensional green biomass (TGB) of urban forests in small area. A total of thirteen simulation equations of TGB of urban forests in Shenyang City were derived, with the factors affecting the TGB analyzed. The results showed that the coefficients of determination (R2) of the 13 simulation equations ranged from 0.612 to 0.842. No evident pattern was shown in residual analysis, and the precisions were all higher than 87% (alpha = 0.05) and 83% (alpha = 0.01). The most convenient simulation equation was ln Y = 7.468 + 0.926 lnx1, where Y was the simulated TGB and x1 was basal area at breast height per hectare (SDB). The correlations between the standard regression coefficients of the simulation equations and 16 tree characteristics suggested that SDB was the main factor affecting the TGB of urban forests in Shenyang.
Ecophysiological responses of Festuca arundinacea to high temperature stress
高羊茅对高温的生理生态响应

XU Sheng,HE Xing-yuan,CHEN Wei,LI Jian-long,
徐胜
,何兴元,陈玮,李建龙

应用生态学报 , 2007,
Abstract: The measurement of leaf relative water content (RWC), chlorophyll content, cell membrane lipid peroxidation, anti-oxidative system, and photosynthesis of two F. arundinacea cultivars (Barlexas and Crossfire II) and Cynodon dactylon under high temperature (38 degrees C / 30 degrees C, day/ night) showed that with the increasing time of exposure to high temperature, the leaf RWC, chlorophyll content, net photosynthetic rate (P(n)) and photochemical efficiency (F(v)/F(m)) of two F. arundinacea cultivars had a decreasing trend, and the average decrement was smaller for Barlexas than for Crossfire II. After exposed to high temperature for 9 days, the average activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) in Barlexas leaves were 19.7%, 17.9% and 17.7% higher than those in Crossfire II leaves, and the P(n) of Barlexas and Crossfire II was decreased by 60.7% and 81.9%, respectively. Under high temperature, the F(v)/F(m) of Barlexas leaves was higher than that of Crossfire II leaves, which could be helpful to mitigate the damage of high temperature to the photosynthetic apparatus of Barlexas. No significant change was observed for each test physiological parameter of C. dactylon leaves with the increase of exposure time under high temperature. The adaptation ability to high temperature was in the order of C. dactylon > Barlexas > Crossfire II.
Photosynthetic characteristics of five arbor species in Shenyang urban area
沈阳城区五种乔木树种的光合特性

LI Hai-mei,HE Xing-yuan,WANG Kui-ling,CHEN Wei,
李海梅
,何兴元,王奎玲,陈玮

应用生态学报 , 2007,
Abstract: By using LI-6400 infrared gas analyzer, this paper studied the diurnal and seasonal variations of the photosynthetic rate of main arbor species (Populus alba x P. berolinensis, Salix matsudana, Ulmus pumila, Robinia pseudoacacia and Prunus davidiana) in Shenyang urban area. The correlations between net photosynthetic rate and environmental factors (photosynthetic active radiation, temperature, and stomatal conductance) were assessed by multivariate regression analysis, and related equations were constructed. The results showed that for test arbor species, the diurnal variation of photosynthetic rate mainly presented a single peak curve, and the seasonal variation was in the order of summer > autumn > spring. The major factors affecting the photosynthetic rate were photosynthetic active radiation, stomatal conductance, and intercellular CO2 concentration.
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