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Hepatocellular carcinoma HepG2.cell apoptosis and caspase-8 and Bcl-2.expression induced by injectable seed extract of Coix lacryma-jobi

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Hepatobiliary & Pancreatic Diseases International 2011年第3期10卷 303-307页

作者： Department of General Surgery (Lu Y and Zhang BY),Department of Bio-information (Jia ZX),Affiliated Medical college Hospital,Qingdao {2.,Qingdao 2.6003,china Shanghai jiaotong {2. School of Medicine,Shanghai 2.002.,china (Wu WJ) Department of Medicine,Heze Medical college,Heze 2.4000,china (Lu ZQ) [a] Department of General Surgery Affiliated Medical College Hospital Qingdao University Qingdao 266003 China [b] Department of Bio-information Affiliated Medical College Hospital Qingdao University Qingdao 266003 China [c] Shanghai jiaotong university School of Medicine Shanghai 200025 China [d] Department of Medicine Heze Medical College Heze 274000 China

BACKGROUND:Many Chinese herbs,especially herbal injections,have been shown to have anti-tumor effects in recent ***,since most reports focus on the clinical effectiveness of these herbs,their mechanisms of action are not well *** this study,we assessed apoptosis in the hepatocellular carcinoma (HCC) cell line HepG2.induced by an injectable extract from the seed of Coix lacryma-jobi (Semen coicis,SC),and monitored the expression of Bcl-2.and ***:Injectable SC was applied to HepG2.cells at different concentrations and the cells were collected 12.2. and 48 hours later.5-fluorouracil was used as a positive control group,and fluorescence-activated cell-sorting cytometry was used to measure the apoptosis rate of HepG2.cells and the expression of Bcl-2.and caspase-8 ***:SC induced apoptosis in HepG2.cells in a concentration and time-dependent manner,and the expression of caspase-8 was elevated and ***,it did not significantly influence the expression of ***:Injectable SC may induce apoptosis in HCC cells by regulating the expression of caspase-8.

关键词： Semen coicis traditional Chinese medicine Bcl-2 caspase-8 HepG2.cells apoptosis

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Structure, spin reorientation and Mssbauer effect studies of Tb0.3Dy0.7(Fe1-xAlx)1.95 alloys

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Science china(Physics,Mechanics & Astronomy) 2006年第2期Mechanics & Astronomy) .卷 149-157页

作者： ZHENG Xiaoping1,2.4, ZHANG Peifeng1,3, FAN Duowang1, LI Fashen3 & HAO Yuan41. Key Laboratory of Opto-Electronic Technology and Intelligent Control, Ministry of Education, lanzhou jiaotong university, lanzhou {2., china 2. Institute of Electronic information Science and Technology,lanzhou Teachers college, lanzhou {2., china 3. Key laboratory for Magnetism and Magnetic Materials, Ministry of Education, lanzhou university, Lan-zhou 730000, china 4. State Key Lab. of Advanced Non-Ferrous Materials, Gansu Province, lanzhou university of Technology, lanzhou 730050, china

The effect of Al substitution for Fe on crystal structure, magnetostriction and spontaneous magnetostriction, anisotropy and spin reorientation of a series of polycrys-talline Tb0.3Dy0.7(Fe1?xAlx)1.95 alloys (x = 0, 0.05, 0.1, 0.15, 0.2., 0.2., 0.30, 0.35) at room temperature and 77 K was investigated systematically. It was found that the primary phase of Tb0.3Dy0.7(Fe1?xAlx)1.95 is the MgCu2.type cubic Laves phase structure when x 0.15 at room temperture, but at 77 K the alloys still remain magnetic phase even for x = 0.2. At room temperature and 77 K, the hyperfine field de-creases and the isomer shifts increase with Al concentration increasing.

关键词： magnetostriction cubic Laves phase spin reorientation M?ssbauer.

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A New Secure Password Authentication Scheme Using Smart Cards

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Wuhan university Journal of Natural Sciences 2008年第6期13卷 739-743页

作者： WANG Bangju1,2. WANG Yuhua3, ZHANG Huanguo1 1. School of Computer, Wuhan university/Key Laboratory of Aerospace information Security and Trust Computing of Ministry of Education, Wuhan 430072. Hubei,{2. 2. School of Science, Huazhong Agricultural university, Wuhan 430070, Hubei,{2. 3. college of information Science and engineering, Henan university of Technology Zhengzhou 450001, Henan,{2. School of information Science and Technology Southwest Jiaotong University Chengdu 610031 Sichuan China

Thirteen security requirements for an ideal password authentication scheme using smart cards are listed and a new smart card based password authentication scheme with identity anonymity is proposed. The new scheme can satisfy all the listed ideal security requirements and has the following merits：（1） it can resist all the attacks listed in introduction; （2. less storage memory requirement due to no verification table stored in server; （3） low computational cost due to hash functions based operations; （4） even if the smart card is lost, the new system is still secure; （5） As user identity is anonymous, this scheme is more practical. The new proposed scheme can be applied in source constraint networks.

关键词： password password authentication hash function attack smart card

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DRAG REDUCTION EFFECT OF COUPLING FLEXIBLE TUBES WITH TURBULENT FLOW

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Journal of Hydrodynamics 2008年第1期20卷 96-100页

作者： CAI Shu-peng JIN Guo-yu LI Da-mei Yang Lin Institute of High Pressure Water Jet Hunan University of Technology Zhuzhou 421008 China State Key Laboratory of Water Resources and Hydropower engineering Science Wuhan University Wuhan430072 China college of Mechanical and electrical {2. Chongqing Jiaotong University Chongqing 400074 China

To analyze the mechanism of drag reducing effect by coupling flexible tubes with turbulent flow, based on experimental examination of more obvious turbulent drag reduction effect in flexible tubes than in rigid tubes, experimental investigation was performed on the effect of turbulent drag reduction, fluctuating vibration characteristics of flexible tube and the correlations by using a double-tube system and laser displacement sensor. The results are as follows： with the decrease of the thickness of the flexible tubes, the root mean square of fluctuating amplitude of the outer wall of the tubes increases, and the non-dimensional burst period increases, resulting in the increase of the reduction rate of drag coefficient by coupling flexible tubes with turbulent flow. At applied pressure-balanced air on the outer wall and the Reynolds number of about 1.75×10^4, the non-dimensional burst periods of the flexible tubes with the thickness of 2.mm, 3 mm, 4 mm are 141, 12., 105, respectively.

关键词： flexible tubes fluctuating displacement turbulent drag reduction burst period

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基于非线性滤波和平滑相迭代的GPS定位估计算法

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上海交通大学学报 2009年第7期43卷 1108-1112页

作者：曹意茅旭初上海交通大学电子信息与电气工程学院上海200240

针对目前全球定位系统(GPS)单机定位精度较低的问题,提出一种新的定位估计算法.每一时刻点先用平淡卡尔曼滤波进行位置估计;然后,利用滤波结果对前一时刻点的位置估计进行平滑修正;接着,再用修正值进行滤波,得到当前时刻点更新的估计值... 详细信息

针对目前全球定位系统(GPS)单机定位精度较低的问题,提出一种新的定位估计算法.每一时刻点先用平淡卡尔曼滤波进行位置估计;然后,利用滤波结果对前一时刻点的位置估计进行平滑修正;接着,再用修正值进行滤波,得到当前时刻点更新的估计值,通过若干次迭代,得到最终估计值.后向平滑算法分别采用固定区间平滑和固定滞后平滑,前者适用于非线性系统模型,后者在平滑步长增大时,其计算量较小.实验结果表明,迭代算法能够有效提高定位精度,不仅可以应用于后验数据处理中,也可以应用于GPS实时定位估计.

关键词：全球定位系统最优平滑平淡卡尔曼滤波迭代算法

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Research of the Digital Communication System for CBTC Based on 802.11

Research of the Digital Communication System for CBTC Based ...

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第三届多媒体信息网络与安全国际会议

作者： Yun Wei 1 School of Automation and electrical engineering {2. jiaotong university {2. china Huaiwei Lu 2.School of Mathematics Physics and Software engineering {2. jiaotong university {2. china Zhaohui He 3 GanSu Provincial Division of china Telecom Group Co. {2. china

The communication based train control （CBTC） system is an advanced train control system .It uses high accuracy of train locating, realizes a continuous automatic train control system .DCS system plays an important role in the information interaction between ground equipment and vehicle equipment in CBTC. Based on OPNET simulation console, this paper designs a DCS network, simulates its communication process , analyzes the simulation data of sending and receiving, evaluates the entire performance of the network, which can offer reference to designing and optimizing the DCS network.

关键词： 802.11 CBTC system DCS Handoff

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Dynamical Behavior of V^2. Control Boost Converter

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Journal of Southwest jiaotong university(English Edition) 2010年第1期18卷 32-38页

作者：包伯成许建平 School of electrical and information {2. Jiangsu Teachers University of Technology School of electrical engineering Southwest Jiaotong University

A discrete iterative map model of V^2. control boost converter was established to study the dynamical behaviors of the converter. By using parameter space map and bifurcation diagram, the effects of circuit parameters on the bifurcation behaviors of V^2. control and current-mode control boost converters were analyzed. The phase portraits and time-domain waveforms of the V^2. control boost converter were obtained by Runge-Kutta algorithm through piecewise smooth switching model. The research results indicate that V^2. control boost converters can evolve into periodic and chaotic behaviors, and show weaker nonlinear behaviors than current-mode control boost converters.

关键词： Bifurcation Chaos Discrete iterative map Parameter space V^2. control boost converter

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Study on Design of Magnetic Flux Leakage Testing Instrument for gun

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微计算机信息 2005年第6期 115-116+82页

作者： Wang,Changlong Fu,Junmei(Institute of Electronic and information, Xi’an jiaotong {2.)Yingwei Xu,Zhangsui(Ordnance engineering college, Shijiazhuang 050003, china)Wang,Changlong Jin,

The paper describes the magnetic Dipole model of magnetic flux leakage(MFL) based on the principle of MFL testing, proposes the effects of surface defect width and depth on MFL field, and presents the peak-peak amplitude algorithm that the features of defect signal are extracted. The peak-peak amplitude and separation, signal gradient variation are used as the distinguish criterions of defects. The principle of instrumental hardware design is also introduced. The introduced gun MFL testing instrument is successfully employed in the nondestructive evaluation of gun.

关键词： magnetic flux leakage defect nondestructive evaluation peak-peak amplitude algorithm hardware design

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Modeling and Stability Analysis of MIMO Networked Control Systems

Modeling and Stability Analysis of MIMO Networked Control Sy...

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第二十七届中国控制会议

作者： Luo Dongsong,Wang Zhiwen,Guo Ge college of electrical and {2. engineering,lanzhou university of Technology,lanzhou 730050,P.R.china

In this paper,delay-independent stability of linear differential delay systems is *** continuous time model of MIMO-NCS is *** close-loop model is essential a zero input linear continuous time-invariant system with *** on the 2.d Lyapunov method,delay-independent stability of MIMO-NCS is investigated and sufficient condition for system to be uniformly asymptotically stable is *** conditions are of a form that is readily computable and the conclusions obtained here have less conservative and do not involve any stability assumption.

关键词： MIMO networked control systems Delay Delay-independent stability

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An Improved Model-based Control Scheme for Networked System

An Improved Model-based Control Scheme for Networked System

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2.10 Chinese Control and Decision Conference

作者： Zhiwen Wang~1,Ge Guo~2.Dongsong Luo~1 1.college of electrical and {2. engineering,lanzhou university of Technology,lanzhou 730050,china 2.college of Automation,Dalian Maritime university,Dalian 11602.,china

＜正＞To reduce the usage of the network and the requirement and occupation of the bandwidth for networked systems,an improved model-based control scheme is presented.A parameter identification module is introduced to reconstruct the model of the ***,the model-based control strategy is carried into *** examples are used to illustrate the influence of the model error on the update *** is to be noted that the smaller the model error,the larger the maximum updating time.

关键词： MB-NCSs Parameter Identification Update Interval

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