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Active Network Supports for Mobile IP

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Journal of Computer Science & Technology 2001年第6期16卷 544-551页

作者： lu, y. Qian, D. Xu, B. Wang, L. Dept. of Computer Science and Eng. Xi'an Jiaotong University Xi'an 710049 China

The basic mobile IP protocol is difficult to implement on the traditional IP network and not flexible and efficient under certain conditions. For example, firewalls or bound- ary.routers may.drop packets sent by.mobile nodes for security.reasons. Traditional networking devices such as routers cannot dy.amically.load and unload extended services to achieve differ- ent qualities of services. In this paper, a new scheme of using the active network to support the mobile IP is presented. The Softnet, a prototy.e of active networks based on mobile agents, is introduced. The active network is characterized by.the programmability.of its intermediate nodes and therefore presents dy.amic and flexible behaviors. Special services can be dy.am- ically.deploy.d onto the active nodes in the Softnet. This property.is definitely.required in implementing the mobile IP protocols. The Softnet supports not only.the basic mobile IP pro- tocol but also other extended mobiIe IP protocols. Virtual networks for mobile IP services are dy.amically.formed by.mobile agents in the Softnet to provide different qualities of services.

关键词： mobile IP Softnet active network mobile agent virtual network

FRACTAL RESEARCH ON CRACKS PROPAGATION OF GAS PIPELINE X52 STEEL WELDING LINE UNDER Hy.ROGEN ENVIRONMENT

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Acta Metallurgica Sinica(English Letters) 2001年第3期14卷 219-226页

作者： S.H. Dong , y.M. lu, y. Zhang and Q. Wu (Mechanics Electronic Department, University.of Petroleum, Beijing 102200, China) (Department of Material Phy.ics, University.of Science and Technology.Beijing, Beijing 100083, China) (y.n Shan University. Qinhuangd Mechanics Electronic Department University of Petroleum Department of Material Phy.ics University of Science and Technology Beijing

Based on the theory.of hy.rogen enhanced localized plasticity.of the hy.rogen induced cracking and the consideration of the effect of the residual stress produced by.eliminated stress heat-treatment, a fractal model of hy.rogen induced cracking was presented, and the relationships among the effective surface energy.(H), fractal dimension D and stress intensity.factor of hy.rogen induced cracking, KIH, for welding pipeline under hy.rogen environment was set up, from which the relationship of D and KISCC was obtained. The model has been verified experimentally.to be correct.

关键词： Crack initiation Electric arc welding Environmental impact Fractals Hy.rogen

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丙型肝炎病毒在土耳其人群中传播的危险因素

世界核心医学期刊文摘（胃肠病学分册） 2006年第9期2卷 13-14页

作者： Karaca . akalo■lu y. Demir K. 王顺涛 ■i■iliEtfal Hastanesi ■i■li/IstanbulTurkey Dr.

The risk factors for the transmission of hepatitis C virus(HCV)infection varies substantially.between countries and geographic *** aim of this investigation was to determine the risk factors which may.be involved in the transmission of HCV infection in the Turkish *** study.included patients who were admitted to the Department of Gastroenterohepatology.Istanbul Medical Faculty.Istanbul University.between 1996 and 2002 and found to be anti-HCV positive during hospitalization or during follow-up as *** patients were asked about risk factors for HCV transmission including transfusion,history.of operation,hospitalization,hemodialy.is,intravenous drug use,suspected sexual contact,tattooing,acupuncture,dental procedures,manicure and pedicure,blood brotherhood rituals,perinatal risk factors,common circumcision rituals,and history.of *** our study.total of 320 patients with anti-HCV seropositivity.were *** numbers and percentages of male and female patients were 139(43.4%)and 181(56.6%),*** mean age of the patients was 49.7 ±12.4 y.ars(range:18-73 y.ars).HCV-RNA was found to be positive in 297(92.8%)*** most common risk factor was a history.of surgery.305;98%),and the second most common was blood transfusion(123;39.7%).The numbers and percentages of patients for the other risk factors were as follows:dental procedure,86(27.5%);abortion,66(21.2%);long-term hospitalization,37(11.6%);hemodialy.is,31(10%);history.of jaundice,15(4.6%);history.of intravenous drug abuse,10(3.1%);history.of suspected sexual contact,5(1.5%);history.of manicure and pedicure,4(1.2%);history.of occupational transmission,3(0.9%);history.of tattooing,2(0.6%);history.of acupuncture,2(0.6%);circumcision in a common circumcision ritual,1(0.3%);and percutaneous needle puncture,1(0.3%).None of the patients had a history.of blood brotherhood ritual or perinatal *** one risk factor was detected in 73(22.8%)patients,two risk fac

关键词：丙型肝炎病毒危险因素土耳其传播人群长期住院治疗静脉药物滥用经皮细针穿刺

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微量钾和钠的纸上色层分析测定法

厦门大学学报(自然科学版) 1956年第3期 14-19页

作者：盧宗兰黄玉英

鹼金属钾、钠的微量测定,近来常用的是火焰光度法,而且火焰光度法也几乎是唯一的一种比较准确的方法,但是这种仪器设备目前还不算普遍,因此寻找其他比较简单的测定方法还是有必要的。 1948年,Fisher,Parsons和Morrison从氨基酸的纸上色... 详细信息

鹼金属钾、钠的微量测定,近来常用的是火焰光度法,而且火焰光度法也几乎是唯一的一种比较准确的方法,但是这种仪器设备目前还不算普遍,因此寻找其他比较简单的测定方法还是有必要的。 1948年,Fisher,Parsons和Morrison从氨基酸的纸上色层分离实验中,证明了一条非常重要的规律,即:“色层谱斑点面积与氨基酸溶液的原始浓度的对数成直线关系”。1949年,Brimley.用热传导和扩散的理论说明了这条规律。如果以S代表斑点面积,C代表未知物原始浓度,则得下列数学关系式:

关键词：离子 Ba 定量测定紫外光灯微量测定未知物溶剂火焰光度法火焰发射光谱法分光光度法氮基酸分折醋酸乙酸对数中含标举

A sperm GPI-anchored protein elicits sperm-cumulus cross-talk leading to the acrosome reaction

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南京医科大学学报（自然科学版） 2009年第4期29卷 529-529页

作者： y.n, L. Chung, C. M. Huo, R. Liu, H. Zhou, C. Xu, W. Zhu, H. Zhang, J. Shi, Q. Wong, H. y.C. Chen, J. lu, y. Bi, y. Zhao, C. Du, y. Ma, M. Cai, y. Chen, W. y. Fok, K. L. Tsang, L. L. Li, K. Ni, y. Chung, y. W. Zhou, Z. Sha, J. Chan, H. C. Nanjing Med Univ Lab Reprod Med Dept Histol & Embryol Nanjing 210029 Peoples R China. Chinese Univ Hong Kong Epithelial Cell Biol Res Ctr Li Ka Shing Inst Hlth Sci Dept Physiol Fac Med Hong Kong Hong Kong Peoples R China. Nanjing Agr Univ Coll Anim Sci & Technol Nanjing 210095 Peoples R China. Zhejiang Acad Med Sci Dept Reprod Physiol Hangzhou 310013 Zhejiang Peoples R China.

High energy.electrons and x-ray.photons emitted by.water plasmas produced by.femtosecond laser pulses

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High energy electrons and x-ray photons emitted by water pla...

Influence of Mg and B Stoichiometry.on the Formation Behavior of MgB2 Phase

CCAST“2002年全国强场激光物理”研讨会

作者： y. T. Li, J. Zhang, Z. M. Sheng, H.Teng, T. J. Liang, X. y. Peng, X. lu, y. J. Li, X. W. Tang Laboratory.of Optical Phy.ics, Institute of Phy.ics, Chinese Academy.of Sciences, Beijing 100080, P. R. China Insitute of High Energy.Phy.ics, Chinese Academy.of Sciences, Beijing 100039, P. R. China

＜正＞Hot electrons and x-ray.photons emitted by.water plasmas produced by.single and multiple laser pulses are investigated. For the same pulse energy.of 5 mJ in our experiments, the multipulse mode greatly.enhances the generation of hot electrons. The hot-electron temperature is about 64 keV, and electrons with energies higher than 25 keV are emitted in two directions sy.metrically.at 46?from the direction of the laser electric field and in the polarization plane. Two-dimensional particle-in-cell simulations reproduce well the experimental results and indicate that the acceleration mechanism of hot electrons is mainly.due to the resonance absorption at the edge of the spherical droplets formed by.leading pulses.

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Influence of Mg and B Stoichiometry on the Formation Behavio...

An embedded electron current lay.r observed at the edge of the plasma sheet in the Earth’s magnetotail

International Conference on Superconducting Materials(ICSM 2006)

作者： S.C.y.n,G. y.n,y.F. lu,y. Feng,L. Zhou School of Materials Science and Engineering, Northwestern Poly.echnical University. Xi'an 710072, P.R. China Northwest Institute for Nonferrous Metal Research, P.O. Box 51, Xi'an 710016,P.R. China

Bulk samples with the stoichiometry.of Mg:B=1:2 and 1:4 were prepared by.solid state reaction method. The microstructure and constituent of the samples were investigated by.using the scanning electron microscope (SEM) and the x-ray.diffraction (XRD). XRD results showed that the MgB2 phase was first formed in all the samples with different stoichiometry.of Mg and B, which indicated that the MgB2 was the most thermody.amically.stable phase in the Mg-B binary.sy.tem. For the samples of Mg:B=1:2, the MgB2 single phase was formed very.well when these samples were sintered at 650℃～700℃.For the samples with later added Mg reaching to the stoichiometry.of Mg:B=1:2, a longer reaction time or higher reaction temperature was required for the formation of the MgB2 single phase. The SEM results showed that the samples with later added Mg had dense microstructures, suggesting that the later addition of Mg could reduce the porosity.of the sample. A small increase of the superconducting transition temperature, Tc, in the Mg addition sample resulted from the dense microstructures.

关键词： MgB2 superconductor, stoichiometry. phase formation

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Earth and Planetary.Phy.ics 2025年第1期9卷 148-158页

作者： ChenChen Zhan RongSheng Wang QuanMing lu San lu XinMin Li Deep Space Exploration Laboratory.School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Chinese Academy.of Sciences(CAS)Center for Excellence in Comparative Planetology.CAS Key.Laboratory.of Geospace Environment/Anhui Mengcheng National Geophy.ical Observatory University of Science and Technology of ChinaHefei 230026China Collaborative Innovation Center of Astronautical Science and Technology Harbin 150001China

The formation of an embedded electron current sheet within the magnetotail plasma sheet has been poorly.*** this article,we present an electron current lay.r detected at the edge of the magnetotail plasma *** ions were demagnetized inside the electron current lay.r,but the electrons were still frozen in with the magnetic field ***,this decoupling of ions and electrons gave rise to a strong Hall electric field,which could be the reason for the formation of the embedded thin current *** magnetized electrons,the absence of the nongy.otropic electron distribution,and negligible energy.dissipation in the lay.r indicate that magnetic reconnection had not been triggered within the embedded thin current *** highly.asy.metric plasma on the two sides of the current lay.r and low magnetic shear across it could suppress magnetic *** observations indicate that the embedded electric current lay.r,probably.generated by.the Hall electric field,even down to electron scale,is not a sufficient condition for magnetic reconnection.

关键词： magnetotail plasma sheet magnetic reconnection

蛔虫变应原致喘豚鼠后外周血血液流变性的动态变化

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中国血液流变学杂志 1999年第4期9卷 195-199页

作者：卢瑜刘志刚林雪怡方勇宋屿娜李菁解放军福州医学高等专科学校病理教研室福州350003 江西医学院变态反应学研究室南昌330006 江西医学院第一附属医院血液流变学室南昌330006

目的：观察蛔虫变应原致喘豚鼠动物模型的血液流变学变化的动态变化、丰富变应原激发动物哮喘的内容。方法：把实验豚鼠随机分为阴性对照组、佐剂对照组和阳性激发组。用蛔虫变应原激发致喘豚鼠后，观察各实验组在激发哮喘后１小时、２... 详细信息

目的：观察蛔虫变应原致喘豚鼠动物模型的血液流变学变化的动态变化、丰富变应原激发动物哮喘的内容。方法：把实验豚鼠随机分为阴性对照组、佐剂对照组和阳性激发组。用蛔虫变应原激发致喘豚鼠后，观察各实验组在激发哮喘后１小时、２４小时和７２小时的血液流变学变化。结果：由蛔虫变应原引起的过敏性哮喘豚鼠动物模型，其血液流变性出现异常，阳性激发组的血浆粘度分别为６，６２±０．２８，５１.４± ０．１１，４．８６± ０．２３，远高于阴性对照组（平均为４．５７± ０．２０）和佐剂对照组（平均为４．６３±０．１７），有显著性意义（Ｐ＜０．０１）；红细胞聚集指数和全血高切还原粘度也均较阴性对照组、佐剂对照组显著性升高（Ｐ＜０.０１）；而红细胞压积则无明显变化。结论：用蛔虫变应原致喘豚鼠后，血液出现高粘滞状态，进一步加剧气道局部的缺血、缺氧及炎性反应，导致气体交换障碍、肺功能降低。

关键词：蛔虫变应原哮喘发病机理血液流变学