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Search Results: 1 - 10 of 103121 matches for " LIU Rui-Qing "
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Emotion Recognition Using Four Physiological Signals Based on BPSO
基于BPSO的四种生理信号的情感状态识别

YANG Rui-Qing,LIU Guang-Yuan,
杨瑞请
,刘光远

计算机科学 , 2008,
Abstract: 通过生理信号来识别人的情感状态越来越引起人们的关注.如何提取有效的生理信号特征进行情感状态的分类,是情感识别的关键.本文采用离散二进制粒子群优化算法(BPS0)进行特征选择,以提高情感状态分类的效果.通过四种生理信号来识别四种情感状态,用最近邻法进行分类,总体识别率达到85%.仿真实验结果表明,将BPSO方法用于生理信号的特征选择是可行的.
The Paper Value Prediction Algorithm Based on the Author's Authority Value
基于作者权威值的论文价值预测算法

LIU Da-You,XUE Rui-Qing,QI Hong,
刘大有
,薛锐青,齐红

自动化学报 , 2012,
Abstract: Citation network is a dynamic network and new papers are added to it every day. The traditional literature evaluation criteria like citations number and PageRank are unfair to the new node. How to retrieve the valuable papers of continuous concerns has become an interesting focus. To solve this problem, Hassan Sayyadi proposed the FutureRank algorithm, but it needs to calculate the PageRank value, which takes a lot of time. Accordingly, we proposed a paper value prediction algorithm without computing the PageRank value. We predict paper's rank of citations number and PageRank value in the future by writers' authority value and citer's authority value. Experimental results show that as compared with FutureRank, our algorithm not only shortens the computing time but also improves the forecast accuracy.
Mycorrhizas of horticultural crops and its application in eco-agriculture.
园艺作物菌根及其在生态农业的应用

LI Rui-Qing,LIU Run-Jin,LI Min,
李瑞卿
,刘润进,李 敏

中国生态农业学报 , 2002,
Abstract: 园艺作物经济价值较高,习惯于苗圃或营养钵育苗,是丛枝菌根(AM)真菌应用的先锋作物,在AM真菌应用过程中具有示范推广作用而受到普遍关注。简介了园艺作物菌根资源、生态及AM真菌促进作物对水分与养分的吸收利用、提高其抗旱性和抗病性、增加产量和改善品质的效应;阐述了农业生产中菌根在园艺作物的应用现状与前景,指出接种AM真菌将成为新世纪生态农业的重要生物技术之一,在发展无公害绿色食品生产中具有广阔的应用前景。
The changes of CD4+CD25+/CD4+ proportion in spleen of tumor-bearing BALB/c mice
Ji-Yan Liu, Xiao-Shi Zhang, Ya Ding, Rui-Qing Peng, Xia Cheng, Nian-Hua Zhang, Jian-Chuan Xia, Yi-Xin Zeng
Journal of Translational Medicine , 2005, DOI: 10.1186/1479-5876-3-5
Abstract: To evaluate the change of CD4+CD25+ TR cells in mouse tumor models, CD4+CD25+ subset in peripheral blood and spleen lymphocytes from normal or C26 colon-carcinoma-bearing BABL/c mice were analyzed by flow cytometry using double staining with CD4 and CD25 antibodies.The proportion of CD4+CD25+/CD4+ in spleen lymphocytes was found to be higher than that in peripheral blood lymphocytes in normal mice. No difference was observed in the proportion in peripheral blood lymphocytes between tumor bearing mice and normal mice, while there was a significant increase in the proportion in spleen lymphocytes in tumor bearing mice as compared with normal mice. Moreover, the proportion increased in accordance with the increase in the tumor sizes. The increase in the proportion was due to the decrease in CD4+ in lymphocytes, which is resulted from decreased CD4+CD25- subset in lymphocytes. Our observation suggests the CD4+CD25+/CD4+ proportion in spleen lymphocytes might be a sensitive index to evaluate the TR in tumor mouse models, and our results provide some information on strategies of antitumor immunotherapy targeting CD4+CD25+ regulatory T lymphocytes.Early in 1970s, the concept of suppressor T cells was developed and it was envisioned that this subset of lymphocytes was responsible for the active control, and ultimately the termination, of immune responses [1]. But the characters of this subset had not been well studied mainly because its distinct phenotype was not identified. In 1990s, Sakaguchi et al found that a subset of CD4+ lymphocytes in peripheral blood of normal mice expressed the IL-2R-α (CD25) and it down-regulated the immune response to self and non-self antigens [2]. Soon the CD4+CD25+ lymphocytes were verified as one group of suppressor T cell and termed as thymic derived "naturally occurring" regulatory T cells (TR). TR represents a minor (5–10%) component of peripheral CD4+ T cells but plays an important role in controlling immune responses [3]. Accumulating e
EFFECTS OF DRAWDOWN OF RESERVOIR WATER LEVEL ON LANDSLIDE STABILITY
库水位下降对滑坡稳定性的影响

LIU Xin-xi,XIA Yuan-you,ZHANG Xian-shu,GUO Rui-qing,
刘新喜
,夏元友,张显书,郭瑞清

岩石力学与工程学报 , 2005,
Abstract: Landslide is one of the most serious geological hazards in the Three Gorges reservoir regions. Since the reservoir was in operation in 2003,both reservoir water level descending and rainstorm infiltration have become major factors that affect the stability of landslide. According to the water level operation options considering the case of extreme rainfall in the Three Gorges reservoir region,transient seepage due to the descending of reservoir water level from 175 to 145 m and rainstorm infiltration is calculated using the finite element method. The transient pore water pressures are then used for limit equilibrium analyses of landslides considering the effects of suction on shear strength of unsaturated soils. The effects of different rainfall speed, various rainfall events on landslide stability are discussed. The results of stability analysis show that the stability of landslides by the drawdown of reservoir water level depends on permeability coefficient of landslides and the structure of landslide. The critical declining velocity of Hongshibao Landslide III is 1 m/d when the rainstorm intensity is 100 mm/d,which will provide scientific basis for the treatment of landslide in Three Gorges reservoir.
Effect of cultural media and arbuscular mycorrhizal fungi on horticultural crops
栽培基质与AM 真菌对园艺作物的影响

SHI Zhao-Yong,LIU Run-Jin,LI Rui-Qing,
石兆勇
,刘润进,李瑞卿

中国生态农业学报 , 2002,
Abstract: 从珍珠岩、蛭石、木屑、草炭、河沙等栽培基质的特点入手,讨论了不同基质对园艺作物生长发育、丛枝菌根(AM)真菌侵染和功能的影响以及AM真菌在不同基质条件下对作物生长的效应。将多种基质按一定比例混配而成的复合基质能综合各基质的优良理化特性,更有利于作物及其菌根的生长发育,如以草炭、蛭石和河沙接不同比例配成的7种基质中对西瓜接种Glomus mosseae,发现4号基质中侵染率最高,达39.9%,而1号基质中的最低,为14.8%,前者处理的植株生长量增加1.5-3倍。复合基质在无土设施栽培中十分有效,将得到更广泛的应用与开发。
A Study of Chromosome Translocation of Francois'' Monkey by Fluoresence in situ Hybridization (FISH)
应用荧光原位杂交(FISH)技术研究 黑叶猴染色体易位 A Study of Chromosome Translocation of Francois Monkey by Fluoresence in situ Hybridization (FISH)

NAI Wen-Hui,LIU Rui-Qing,CHEN Yu-Ze,WANG Jin-Huan,
佴文惠
,刘瑞清,陈玉泽,王金焕NAI Wen-Hui,LIU Rui-Qing,CHEN Yu-Ze,WANG Jin-Huan

遗传 , 1999,
Abstract: 本文应用染色体荧光原位杂交(FISH)技术,利用人9号和14号染色体特异探针,对深低温冻存和长期传代的黑叶猴细胞株染色体畸变进行了分析。确定在长期冻存和传代过程中,一些黑叶猴细胞在No12和No17染色体之间发生了易位,一条No17染色体发生断裂,断裂点在17q13,断裂片段17q13-17qter易位到一条No12染色体长臂末端,形成一条小的中着丝粒的和一条具较长长臂的衍生染色体即der(17)和der(12)。结果表明,荧光原位杂交技术用人染色体特异探针不仅能检测出人类染色体畸变,也能有效地检测灵长类动物染色体畸变
Clear Genetic Distinctiveness between Human- and Pig-Derived Trichuris Based on Analyses of Mitochondrial Datasets
Guo-Hua Liu,Robin B. Gasser ,Ang Su,Peter Nejsum,Lifei Peng,Rui-Qing Lin,Ming-Wei Li,Min-Jun Xu,Xing-Quan Zhu
PLOS Neglected Tropical Diseases , 2012, DOI: 10.1371/journal.pntd.0001539
Abstract: The whipworm, Trichuris trichiura, causes trichuriasis in ~600 million people worldwide, mainly in developing countries. Whipworms also infect other animal hosts, including pigs (T. suis), dogs (T. vulpis) and non-human primates, and cause disease in these hosts, which is similar to trichuriasis of humans. Although Trichuris species are considered to be host specific, there has been considerable controversy, over the years, as to whether T. trichiura and T. suis are the same or distinct species. Here, we characterised the entire mitochondrial genomes of human-derived Trichuris and pig-derived Trichuris, compared them and then tested the hypothesis that the parasites from these two host species are genetically distinct in a phylogenetic analysis of the sequence data. Taken together, the findings support the proposal that T. trichiura and T. suis are separate species, consistent with previous data for nuclear ribosomal DNA. Using molecular analytical tools, employing genetic markers defined herein, future work should conduct large-scale studies to establish whether T. trichiura is found in pigs and T. suis in humans in endemic regions.
The Complete Mitochondrial Genome of the Asiatic Cavity-Nesting Honeybee Apis cerana (Hymenoptera: Apidae)
Hong-Wei Tan, Guo-Hua Liu, Xia Dong, Rui-Qing Lin, Hui-Qun Song, Si-Yang Huang, Zi-Guo Yuan, Guang-Hui Zhao, Xing-Quan Zhu
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0023008
Abstract: In the present study, we determined the complete mitochondrial DNA (mtDNA) sequence of Apis cerana, the Asiatic cavity-nesting honeybee. We present here an analysis of features of its gene content and genome organization in comparison with Apis mellifera to assess the variation within the genus Apis and among main groups of Hymenoptera. The size of the entire mt genome of A. cerana is 15,895 bp, containing 2 ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA (tRNA) genes and one control region. These genes are transcribed from both strands and have a nucleotide composition high in A and T. The contents of A+T of the complete genomes are 83.96% for A. cerana. The AT bias had a significant effect on both the codon usage pattern and amino acid composition of proteins. There are a total of 3672 codons in all 13 protein-coding genes, excluding termination codons. The most frequently used amino acid is Leu (15.52%), followed by Ile (12.85%), Phe (10.10%), Ser (9.15%) and Met (8.96%). Intergenic regions in the mt genome of A. cerana are 705 bp in total. The order and orientation of the gene arrangement pattern is identical to that of A. mellifera, except for the position of the tRNA-Ser(AGN) gene. Phylogenetic analyses using concatenated amino acid sequences of 13 protein-coding genes, with three different computational algorithms (NJ, MP and ML), all revealed two distinct groups with high statistical support, indicating that A. cerana and A. mellifera are two separate species, consistent with results of previous morphological and molecular studies. The complete mtDNA sequence of A. cerana provides additional genetic markers for studying population genetics, systematics and phylogeographics of honeybees.
The Complete Mitochondrial Genome of Galba pervia (Gastropoda: Mollusca), an Intermediate Host Snail of Fasciola spp
Guo-Hua Liu, Shu-Yan Wang, Wei-Yi Huang, Guang-Hui Zhao, Shu-Jun Wei, Hui-Qun Song, Min-Jun Xu, Rui-Qing Lin, Dong-Hui Zhou, Xing-Quan Zhu
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0042172
Abstract: Complete mitochondrial (mt) genomes and the gene rearrangements are increasingly used as molecular markers for investigating phylogenetic relationships. Contributing to the complete mt genomes of Gastropoda, especially Pulmonata, we determined the mt genome of the freshwater snail Galba pervia, which is an important intermediate host for Fasciola spp. in China. The complete mt genome of G. pervia is 13,768 bp in length. Its genome is circular, and consists of 37 genes, including 13 genes for proteins, 2 genes for rRNA, 22 genes for tRNA. The mt gene order of G. pervia showed novel arrangement (tRNA-His, tRNA-Gly and tRNA-Tyr change positions and directions) when compared with mt genomes of Pulmonata species sequenced to date, indicating divergence among different species within the Pulmonata. A total of 3655 amino acids were deduced to encode 13 protein genes. The most frequently used amino acid is Leu (15.05%), followed by Phe (11.24%), Ser (10.76%) and IIe (8.346%). Phylogenetic analyses using the concatenated amino acid sequences of the 13 protein-coding genes, with three different computational algorithms (maximum parsimony, maximum likelihood and Bayesian analysis), all revealed that the families Lymnaeidae and Planorbidae are closely related two snail families, consistent with previous classifications based on morphological and molecular studies. The complete mt genome sequence of G. pervia showed a novel gene arrangement and it represents the first sequenced high quality mt genome of the family Lymnaeidae. These novel mtDNA data provide additional genetic markers for studying the epidemiology, population genetics and phylogeographics of freshwater snails, as well as for understanding interplay between the intermediate snail hosts and the intra-mollusca stages of Fasciola spp..
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