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连续混沌信号的离散余弦变换域二次实时滤波预测

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物理学报 2004年第3期53卷 710-716页

作者：张家树李恒超肖先赐西南交通大学信号与信息处理四川省重点实验室成都610031 电子科技大学电子工程学院成都610054

提出了少参数二阶Volterra滤波器的一种离散余弦变换 (DCT)域二次滤波实现结构及其NLMS自适应算法 ,并用这种DCT域二次滤波预测器研究了三种连续混沌信号的非线性实时多步预测性能 .仿真研究结果表明 :(1)这种DCT域二次滤波预测器比少... 详细信息

提出了少参数二阶Volterra滤波器的一种离散余弦变换 (DCT)域二次滤波实现结构及其NLMS自适应算法 ,并用这种DCT域二次滤波预测器研究了三种连续混沌信号的非线性实时多步预测性能 .仿真研究结果表明 :(1)这种DCT域二次滤波预测器比少参数二阶Volterra滤波器的一步预测均方误差性能提高了 10 0倍 ,表明这种实现结构简单、易实现 ,且具有更好的收敛性能 ;(2.)

关键词：混沌实时预测 Voherra滤波器离散余弦变换 NLMS自适应算法收敛性能

Expression of class Ⅰ MHC molecule,HSP70 and TAP in human hepatocellular carcinoma

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World Journal of Gastroenterology 2003年第8期9卷 1853-1855页

作者： Xiao-Ling Deng Wei Chen Mei-Ying Cai Da-Peng Wei, Immunology department, West china Medical Center of {2. University, chengdu 610044, {2. province, china Immunology department West China Medical Center of Sichuan University Chengdu 610044 Sichuan Province China.

AIM:To demonstrate whether class I MHC molecule,transporter associated with antigen processing (TAP), and heat-shock proteion70 (HSP70) expressed in liver cancer cells before the design and construction of CTL vaccine against hepatocellular carcinoma (HCC).METHODS: We studied 30 HCC specimens by labeled streptavidin biotin (LSAB) method of ***: The results showed that the majority of HCC cells investigated naturally expressed class I MHC and TAP,which were different from other tumor cells. Furthermore,we found that HSP70 expressed not only in cellularcytoplasm, but also on the cell surface in ***: Our findings indicate that our understanding about immune escape mechanisms employed by HCC cells may be further improved, It is important to design and construct CTL vaccine against HCC.

关键词：肝细胞癌热休克蛋白70 主要组织相容性抗原复合物 TAP

Tensile Elastic Modulus, Strength and Fracture of δ-Al_2._(3f)/Al Alloy Composites

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Journal of Materials Science & Technology 2000年第5期16卷 475-480页

作者： GuoZheng KANG+, Qing GAO and Jixi ZHANG (department of Applied Mechanics and Engineering, Southwest Jiaotong University, chengdu 610031,{2.) department of Applied Mechanics and Engineering Southwest Jiaotong University Chengdu 610031 China

Based on the experimental and theoretical analysis, the tensile elastic modulus, strength and fracture characteristics of squeeze casting δ-Al2.3/Al alloy composites were studied. The fracture characteristics of composites were observed by SEM. The elastic modulus was predicted by the finite element method based on the energy equivalence principle, and the strength was predicted by the statistical integration average method using the maximum energy criterion of composite strength. In the prediction, the distribution density functions of the fiber's. orientation and length were considered. These functions were gained by experimental measurement. It is shown that the predicted results are in agreement with the experimental values well and the microstructure feature of composites controls the fracture characteristics.

关键词： Tensile Elastic Modulus Al2.

Polymorphism of p16INK4a gene and rare mutation of p15INK4b gene exon2.in primary hepatocarcinoma

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World Journal of Gastroenterology 2000年第3期6卷 411-414页

作者： Yang Qin Bo Li Yong Shu Tan Zhi Lin Sun Feng Qiong Zuo Ze Fang Sun Institute of Biochemistry and Molecular Biology,West china University of Medical Sciences,chengdu 610041,{2. province,china department of General Surgery,The First Affiliated Hospital,West china University of Medical Sciences,chengdu 610041,{2. province,china department of Pathology,The First Affiliated Hospital,West china University of Medical Sciences,chengdu 610041,{2. province,china 华西医科大学四川成都

INTRODUCTION Hepatocellular carcinoma(HCC)is the mostcommon cause of death from cancer in *** of hepatocarcinogenesis are not yetknown clearly,p16INK4a gene,the multiple tumorsuppressor gene 1(MTS1),encodes P16 protei... 详细信息

关键词： p16INK4a gene p15INK4b gene polymorphism mutation hepatocarcinoma

Seismic response analysis of road vehicle-bridge system for continuous rigid frame bridges with high piers

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Earthquake Engineering and Engineering Vibration 2012年第4期11卷 593-602页

作者： Li Yongle Chen Ning Zhao Kai Liao Haili department of Civil Engineering Southwest Jiaotong University CCCC Highway Consultants CO. Ltd.

The objective of this study is to investigate the effects of earthquakes on road vehicle-bridge coupling vibration systems. A two-axle highway freight vehicle is treated as a 13 degree-of-freedom system composed of several rigid bodies, which are connected by a series of springs and dampers. The framework of the earthquake-vehicle-bridge dynamic analysis system is then established using an earthquake as the extemal excitation. The equivalent lateral contact force serves as the judgment criteria for sideslip accidents according to reliability theory. The entire process of the vehicle crossing the bridge is considered for a very high pier continuous rigid frame bridge. The response characteristics of the vehicle and the bridge are discussed in terms of various parameters such as earthquake ground motion, PGA value of the earthquake, incident angle, pier height, vehicle speed and mass. It is found that seismic excitation is the most influential factor in the responses of the vehicle-bridge system and that the safety of vehicles crossing the bridge is seriously impacted by the dual excitations of earthquake and bridge vibration.

关键词： vehicle-bridge system coupling vibration seismic effects safety dynamic response

Pharmacokinetic and Pharmacodynamic Study of PEG-G-CSF in cancer patients with chemotherapy-induced neutropenia

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Pharmacokinetic and Pharmacodynamic Study of PEG-G-CSF in ca...

Annual and Monthly Variations in Litter Macronutrients of Three Subalpine Forests in Western china

第十三次全国临床药理学学术大会

作者： Zhengli1 HouMei2.Wangjin2.QiuMeng2.WuQi3 1.GCP center,West china hospital of sichuan University,{2. 610041 china 2.Tumor department,West china hospital of sichuan University,{2. 610041 china 3.Tumor department,sichuan province hospital,{2. 610041 china

BACKGROUND/AIMS:The newly developed generic PEG-G-CSF,a long-acting granulocyte colony-stimulating factor was established in china,the aim of this study was to investigate the safety, pharmacokinetic and pharmacodynamic profiles of PEG-G-CSF in cancer patients with chemotherapy-induced neutropenia. METHODS:This open-label,randomized-sequence,2.way crossover study was conducted at two Hospitals, *** Chinese cancer patients(eight patients with nonsmall-cell lung cancer and two patients with lymphoma) who had experienced severe neutropenia were *** received the same chemotherapy regimen in their each *** were randomly assigned at a 1:1 ratio to received a single subcutaneous dose of 60 ug/kg PEG-G-CSF or with daily subcutaneous dose of 5μg/kg filgrastim at the 48 hours after chemotherapy ended in the first chemotherapy cycle and administration of the alternate formulation in the second cycle. Pharmacokinetic,pharmacodynamic and safety analyses were *** samples for PEG-G-CSF concentration measurement were collected before PEG-G-CSF administration and froml to 432.hours after the injection of ***:PEG-G-CSF and filgrastim were similar for all efficacy and safety end *** main pharmacokinetic parameters of PEG-G-CSF are as follow:T:2..0±11.0 h,C:138.4±31.3μg/L,t:64.2.11.0h,CL:0.006±0.002.L/h/kg,AUC(0-t):11105±2.43ug/L/*** concentrations of PEG-G-CSF began to decrease after day 5 at the end of chemotherapy and returned to baseline levels on day 15. CONLUSION:The tolerance,pharmacokinetic and pharmacodynamic characteristics of PEG-G-CSF supported that a single dose of 60ug/kg subcutaneous injection once per treatment cycle for prevention of severe neutropenia.

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Pedosphere 2006年第6期16卷 788-798页

作者： YANG Wan-Qin WANG Kai-Yun S. KELLOMAKI ZHANG Jian Faculty of forestry Sichuan Agricultural University Ya＇an 625014 （China） chengdu Institute of Biology Chinese Academy of Sciences Chengdu 610041 （China） University of Joensuu Faculty of Forestry P.O. Box 111 FIN-80101 （Finland）

Macronutrients （N, P, K, Ca, Mg, and S） in litter of three primarily spruce （Picea purpurea Masters）（SF）, fir （Abies faxoniana Rehder ＆ E. H. Wilson）（FF）, and birch （Betula platyphylla Sukaczev）（BF） subalpine forests in western china were measured to understand the monthly variations in litter nutrient concentrations and annual and monthly nutrient returns via litteffall. Nutrient concentration in litter showed the rank order of Ca 〉 N 〉 Mg 〉 K 〉 S 〉 P. Monthly variations in nutrient concentrations were greater in leaf litter （LL） than other litter components. The highest and lowest concentrations of N, P, K, and S in LL were found in the growing season and the nongrowing season, respectively, but Ca and Mg were the opposite. Nutrient returns via litterfall showed a marked monthly pattern with a major peak in October and one or two small peaks in February and/or May, varying with the element and stand type, but no marked monthly variations in nutrient returns via woody litter, reproductive litter, except in May for the BF, and moss litter. Not only litter production but also nutrient concentration controlled the annual nutrient return and the monthly nutrient return pattern. The monthly patterns of the nutrient concentration and return were of ecological importance for nutrient cycling and plant growth in the subalpine forest ecosystems.

关键词： litterfall macronutrient return monthly variation nutrient concentration subalpine forest

Effect of Ozone Produced from Antibody-catalyzed Water Oxidation on Pathogenesis of Atherosclerosis

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Acta Biochimica et Biophysica Sinica 2006年第6期38卷 417-422页

作者： Ke-Jun PENG~1,Yu-Shan HUANG~1,Li-Na AN~1,Xiao-Qun HAN~1,Jing-Ge ZHANG~1, Qiu-Lin WANG~2.Jing SUN~1,and Shu-Ren WANG~(1*) ~1 department of Pathophysiology,West china Preclinical Medical and Forensic Medical College,{2. University,chengdu 610041,china ~2.The First department of Internal Medicine,The First Hospital Affiliated to chengdu Medical College,chengdu 610500,china department of Pathophysiology West China Preclinical Medical and Forensic Medical CollegeSichuan UniversityChengdu 610041China The First department of Internal Medicine The First Hospital Affiliated to Chengdu Medical CollegeChengdu 610500China

Recent studies have suggested that antibodies can catalyze the generation of unknown oxidantsincluding hydrogen peroxide （H2.2. and ozone （O3） from singlet oxygen （1O2. and *** study is aimedto detect the effect of antibody-catalyzed water oxidation on *** results showed that bothH2.2.nd O_ were produced in human leukemia THP-1 monocytes incubated with human immunoglobulin Gand phorbol myristate *** the THP-1 monocytes incubated with human immunoglobulin G,phorbolmyristate acetate and low density lipoprotein the intracellular total cholesterol,free cholesterol,cholesterylester and lipid peroxides clearly increased,and a larger number of foam cells were observed by oil red *** accumulation of all intracellular lipids was significantly inhibited by vinylbenzoic acid,and onlyslightly affected by *** findings suggested that the production of O3,rather than H2.2.might beinvolved in the pathogenesis of atherosclerosis through the antibody-catalyzed water oxidation pathway.

关键词： antibody ozone THP-1 monocyte foam cell atherosclerosis

Impact factor analysis of post-operation life quality according to KPS in adult supratentorial superficial low-grade glioma

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Impact factor analysis of post-operation life quality accord...