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An Enhanced RSA-based Partially Blind Signature

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An Enhanced RSA-based Partially Blind Signature

SOME OBSERVATIONS OF twO INTERFERING VIV CIRCULAR CYLINDERS OF UNEQUAL DIAMETERS IN TANDEM

2010 International Conference on Computer and Communication Technologies in Agriculture Engineering (CCTAE 2010)

作者： Dejian Fang1 1Department of Mathematics and Computer Science Fuqing Branch of Fujian Normal University Fuqing 350300 China Na Wang1 1Department of Mathematics and Computer Science Fuqing Branch of Fujian Normal University Fuqing 350300 China Chenglian Liu1 2 2Information Security Group Royal Holloway University of London egham tw2. 0ex UK

Hwang et *** that the Chien et al.’s partially blind signature scheme based on RSA public cryptosystem could not meet the untraceability property of a blind *** this paper,we proposed an enhanced version of Chien et al.’s par-tially blind signature scheme based on *** enhancement eliminates the vulnerability of the original version to the trace attack.

关键词： Blind Signature Unlinkability Forgery Attack

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Journal of Hydrodynamics 2011年第5期23卷 535-543页

作者： HUANG Shan SWORN Andy Department of Naval Architecture and Marine Engineering University of Strathclyde Glasgow G4 0LZ UK BP exploration Operating Company Ltd. Middlesex TW 16 7LN UK

Analysis of model test results was carried out to investigate the hydrodynamic interaction between a pair of elastically-supported rigid cylinders of dissimilar diameters in a water flume. The two cylinders are placed in tandem with one situated in the wake of the other. The diameter of the upstream cylinder is twice as large as that of the downstream cylinder. The spacing between the two cylinders ranges from 1 to 10 times the larger cylinder diameter. The Reynolds numbers are within the sub-critical range. The cylinders are free to oscillate in both the in-line and the cross-flow directions. The reduced velocity ranges from 1 to 10 and the low damping ratio of the model test set-up at 0.006 gives a combined mass-damping parameter of 0.02. It is found that the lift on and the cross-flow motion of the downstream cylinder have the frequency components derived from the upstream cylinder＇s vortex shedding as well as from its own vortex shedding, and the relative importance of the two sources of excitation is influenced by the spacing between the two cylinders. The downstream cylinder＇s VIV response appears to be largely dependent upon the actual reduced velocity of the cylinder.

关键词： vortex-induced vibration circular cylinder drag lift flow interference

Sr AND Nd ISOTOPIC COMPOSITION OF THE ULTRAMAFIC XENOLITHS FROM EASTERM CHINA:INFERENCES ABOUT THE STRUCTURE OF THE SUBCONTINENTAL LITHOSPHERE MANTLE AND THE ORIGIN OF BASALTIC MAGMAS

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Geotectonica et Metallogenia 1994年第Z1期18卷 39-49页

作者： Weiming FAN and M. A. MENZIES ( Changsha Institute of Geotectunies, Acad cmia Sinica, Chang sha, 410013)(Depariment of Geology, Royal Holloiv ay University of London, egham, Surroy tw2. Oex, U K.)

Uliramafie xenoliths provide an important constraint on the composition,strueture and evolution of the lithosphere mantle beneath eastern China. Most of the xenoliths entrained by the Cenzoic basalts have de pleted Sr and Nd isotopie composition. Interestingly evidences have been found for old ehriehed lithosphere mantle beneath thick Arehaean and post-Arehaean erust (＞35 km ) and for relatively homogeneous and depleted lithosphere mantle bencath thin erust (＜ 35 km ). Furthermore the chemieal composition of the lithosphere mantle is overall fertile regardless of the age of the overlying erust. The spatial variability in ehemieal and Sr and Nd isotopie eompositions of the ultramafie xenoliths in relation to the lithospherie ages and geometry implies a mixture strueture of the lithosphere mantle beheath easiern China. which consists of recently aecreted asthenospherie diapirs and old modified remnants. Isotopie eomposition of the Cenozoie basalts show obvious similarities with ocein island basalt (OIH ). We argue that enriehed lithosphere mantle delamineted during Mesozoic-Cenozoie tectonie-thermal events was generally involved in the Cenozoie basaltic voleanism.

关键词： Nd Pb EM Sr AND Nd ISOTOPIC COMPOSITION OF THE ULTRAMAFIC XENOLITHS FROM EASTERM CHINA

LITHOSPHERE-ASTHENOSPHERE INTERACTION: A COMPARATIVE STUDY ON CENOZOIC AND MESOZOIC BASALTS AROUND BOHAI AREA

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Geotectonica et Metallogenia 1995年第4期19卷 1-13页

作者： Yigang Xu Weiming Fan and Ge Lin( Guangzhou Institute of Geochemistry , Chinese Academy of Sciences , Guangzhou , P. R, China)（Department of Gedegy, Royal Holoway Univoersity of London, egham, Surrey, tw2.Oex , UK)(Changsha Institute of Geotectonics,Chin

Mesozoic and Cenozoic basalitc rnagmatism within the basins around Bohai area displays temporal variations in petrochemistry,trace element and isotope geochmistry. two stages of evolution are recognized. The preextension magmatism (134 - 91 Ma,Jiyang basin) is characterised by small volumes of alkaline basalts and potassic lamprophyres. These rocks are interpreted as results of very small degrees of partial melting of the lithosphere and volatile-rich metasome within the lithosphere induced by initial thermal perturbation. The second stage (74- 27 Ma) coincides with the lithospheric extension. It, is noted that the alkalinity and Dea of basalts increased systematically from 74 to 27 Ma. Major element chemistry,trace element modelling antl experimental data indicate that there is an increase in depth of melting and a decrease in degree of partial melting from 74 to 27 Ma. Such a temporal change in source character and in the depth of origin is best understood when magmatism is considered within the framework of a lithosphere-asthenos phere interaction model where melting is initiated by discrete thermal events related lithospheric extension.

关键词： geochemistry basalt Bohai area China

Enhancements of Impinging Flame by Pulsation

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Journal of Thermal Science 2000年第3期9卷 271-273页

作者： Ay Su Ying-Chieh Liu (Department of Mechanical Engineering, Yuan-Ze University Tao-Yuan County, Taiwan, China,Meaysu@saturn.yzu.edu.tw) Department of Mechanical Engineering Yuan-Ze University Tao-Yuan County Taiwan China

experimental investigations on the pulsating jet-impinging diffusion flame were executed. A solenoid valve was aligned upstream of tile jet orifice and the methane fuel was controlled in open-closed cycles from 0 Hz to 20 Hz. Results show that the open-closed cycles indeed increase the fluctuations of the methane fuel obviously. The evolutions of pulsating flame therefore develop faster than the continuous impinging flame. The optimized pulsating frequencies are near 9 to 11 Hz from the Re = 170 to 283. The temperature differences between that under optimized pulsating rate and full open condition (no pulsation) are ranging from 100 to 150 degree. The pulsating effect is more significant at low Reynolds number. The cross section of continuous impinging flame behaves as elliptic shape with axial ratio equals to 2/3. The tip of the impinging flame obviously crosses at 42 mm above the impinging point. Because of the phenomenon of pulsation flame, the flame sheet or flame front may not be identified clearly in the averaged temperature contours. Results show that the averaged end-contour of pulsation flame rears at 38 mm above the impinging point. By observation and experiment, the pulsating flame behaves more stable and efficient than the continuous impinging flame.

关键词： pulsation name jet-impingement combustion enhancement.

GaAs基InAs/AlSb二维电子气结构的生长优化（英文）

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红外与毫米波学报 2018年第4期37卷 385-388页

作者：崔晓然吕红亮李金伦苏向斌徐应强牛智川西安电子科技大学微电子学院陕西西安710071 中国科学院半导体研究所超晶格实验室北京100083 中国人民解放军陆军工程大学石家庄校区导弹工程系河北石家庄050003 西北大学光子学与光子技术研究所陕西西安710069 中国科学院大学材料科学与光电技术学院北京100049

采用分子束外延设备(MBE),外延生长了InAs/AlSb二维电子气结构样品.样品制备过程中,通过优化AlGaSb缓冲层厚度和InAs/AlSb界面厚度、改变AlSb隔离层厚度,分别对比了材料二维电子气特性的变化,并在隔离层厚度为5nm时,获得了室温电子迁移... 详细信息

采用分子束外延设备(MBE),外延生长了InAs/AlSb二维电子气结构样品.样品制备过程中,通过优化AlGaSb缓冲层厚度和InAs/AlSb界面厚度、改变AlSb隔离层厚度,分别对比了材料二维电子气特性的变化,并在隔离层厚度为5nm时,获得了室温电子迁移率为20500cm^2/V·s,面电荷密度为2.0×1012/cm^2的InAs/AlSb二维电子气结构样品,为InAs/AlSb高电子迁移率晶体管的研究和制备提供了参考依据.

关键词：二维电子气迁移率高电子迁移率晶体管(HEMT) 分子束外延(MBE)

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赤霉素A3和嘧啶醇对向日葵叶片结构的影响

国外农学（向日葵） 1991年第3期 35-38页

作者： Star.,tw 高山

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中国省际碳排放额度分配方法研究

财贸研究 2018年第10期29卷 32-39页

作者：李小胜李月李燕安徽财经大学统计与应用数学学院安徽蚌埠233030 吉林大学商学院吉林长春130012

利用中国省际投入产出数据,应用改进的"零和博弈"数据包络(ZSG-DEA)模型,对中国碳排放的效率进行评价,在此基础上按照效率的高低对碳排放的额度进行分配。研究结果表明:中国各地区的碳排放效率存在较大的差距,以考虑效率最大化为目标,... 详细信息

利用中国省际投入产出数据,应用改进的"零和博弈"数据包络(ZSG-DEA)模型,对中国碳排放的效率进行评价,在此基础上按照效率的高低对碳排放的额度进行分配。研究结果表明:中国各地区的碳排放效率存在较大的差距,以考虑效率最大化为目标,各省份之间碳排放重新分配后,效率明显提高,除辽宁、吉林和福建的效率为0. 999外,其余省份都为1。从分配的结果看,发达省份基本都是实际碳排放少于重新分配后的数量,效率低和经济不发达省份的碳排放多数处在超排状态。最后采用考虑公平和效率的单指标分配,发现效果并没有按照ZSG-DEA模型分配的好,这表明按照ZSG-DEA模型分配更加符合经济的发展状况,符合国家的整体利益。

关键词：碳排放 “零和博弈”DEA 公平和效率分配

Prenatal morphine exposure inhibits GABAA receptor-mediated responses in day-old chicks

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Prenatal morphine exposure inhibits GABAA receptor-mediated ...