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Performance evaluation of multiple relays cooperative GBn-ARQ with limited retransmission

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Journal of Systems Engineering and Electronics 2015年第6期26卷 1210-1215页

作者： suoping li Yongqiang Zhou Xijuan Yang Zufang Dou School of Science Lanzhou University of Technology School of Electrical & Information Engineering Lanzhou University of Technology

We investigate the performance of multiple relays cooperative go back n automatic repeat request （MRC-GBn-ARQ） protocol with limited retransmission. An N＋2-state Markov transition model is constructed for analyzing arbitrary packet transmission process with limited retransmission. Then the system＇s steadystate distribution is derived by using the Kolmogorov equations. Further, the mean packet transmission delay and startup delay are obtained respectively; the channel utilization is derived based on discrete-time Geom/G/1 queue model with startup. Also, we get the energy efficiency of the MRC-GBn-ARQ based on energy analytical model. Especially, the presented models are contrary to the classical ARQ protocols of always allowing infinite retransmis- sion, and our analysis of the MRC-GBn-ARQ protocol with limited retransmission provides theoretical results for reducing the system＇s delay and energy consumption. Finally, analysis is validated through some numerical simulations.

关键词： steady-state distribution mean packet transmissiondelay channel utilization energy efficiency.

Molecular characterization of α-gliadin genes from common wheat cultivar Zhengmai 004 and their role in quality and celiac disease

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The Crop Journal 2014年第1期2卷 10-21页

作者： Yuge li Ranran Xin Dale Zhang suoping li College of life Science Henan University

A total of 43 unique clones(Z4A-1 to Z4A-43 with GenBank accession numbers of HM120221, HM120222, JX828270, JN831402 to JN831406, and KC715889 to KC715923, respectively) were amplified and cloned from common wheat cultivar Zhengmai 004 using a PCR-based strategy. They included 22 full-ORF α-gliadin genes and 21 pseudogenes containing at least one in-frame stop codon. Comparative analysis of the deduced amino acid sequences showed that all the isolated genes displayed the typical structural features of α-gliadin genes and that the putative proteins of Z4A-7, Z4A-14, Z4A-17 and Z4A-20 had an extra cysteine residue in the unique domain II, while Z4A-15 lacked the second conserved cysteine residue in the unique domain I. The two fusion proteins of Z4A-15 and Z4A-20 were successfully detected by SDS-PAGE and Western blotting, although the protein level was relatively low. Based on the occurrence of the four major epitopes, as well as the lengths of the two glutamine repeats, 8, 6, and 8 genes were assigned to the Gli-2 loci on the respective chromosomes 6A, 6B, and 6D and a total of respectively 16, 0 and 23 immunogenic peptides were identified. In addition, 4 of the 5 genes with odd numbers of cysteine residues were assigned to chromosome 6D, suggesting that common wheat cultivar Zhengmai 004 has the potential to induce celiac disease(CD) and that the D genome exerts the most influence on gluten quality, but is the most deleterious for CD patients. By phylogenetic analysis, 11 exceptional α-gliadins with few or no immunogenic peptides from Triticum monococcum and Aegilops tauschii were detected, a finding that further supports the prospect of CD prevention. Finally, secondary structure prediction showed that most(98.48%) of the α-gliadins invariably contained five conserved α-helices(H1 to H5) in the two glutamine repeats and unique domains and 67.68% of the α-gliadins also contained a β-strand(S) in the C-terminal unique domains. An absent α-helix H2, 1–2 extra α-helic

关键词： α-gliadin Chromosome location Heterologous expression Secondary structure prediction

Introgression of QTL from Aegilops tauschii enhances yield-related traits in common wheat

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The Crop Journal 2023年第5期11卷 1521-1532页

作者： Feifei Ma Ranzhe li Guanghui Guo Fang Nie Lele Zhu Wenjuan liu linlin Lyu Shenglong Bai Xinpeng Zhao Zheng li Dale Zhang Hao li suoping li Yun Zhou Chun-Peng Song State Key Laboratory of Crop Stress Adaptation and Improvement College of AgricultureSchool of Life SciencesHenan UniversityKaifeng 475004HenanChina

To break the narrow diversity bottleneck of the wheat D genome, a set of Aegilops tauschii-wheat introgression(A-WI) lines was developed by crossing Ae. tauschii accession T015 with common wheat elite cultivar Zhoumai 18(Zhou18). A high-density genetic map was constructed based on Single Nucleotide Polymorphism(SNP) markers and 15 yield-related traits were evaluated in 11 environments for detecting quantitative trait loci(QTL). A total of 27 environmentally stable QTL were identified in at least five environments, 20 of which were derived from Ae. tauschii T015, explaining up to 24.27% of the phenotypic variations. The major QTL for kernel length(KL), QKl-2D.5, was delimited to a physical interval of approximately 2.6 Mb harboring 52 candidate genes. Three Kompetitive Allele Specific PCR(KASP)markers were successfully developed based on nonsynonymous nucleotide mutations of candidate gene AetT093_2Dv1G100900.1 and showed that A-WI lines with the T015 haplotype had significantly longer KL than the Zhou18 haplotype across all 11 environments. Four primary valuable A-WIs with good trait performance and carrying yield-related QTL were selected for breeding improvement. The results will facilitate the efficient transfer of beneficial genes from Ae. tauschii into wheat cultivars to improve wheat yield and other traits.

关键词： A-WI Aegilops tauschii Wheat QTL mapping Yield-related traits

New insights into the dispersion history and adaptive evolution of taxon Aegilops tauschii in China

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Journal of Genetics and Genomics 2022年第3期49卷 185-194页

作者： Hao li Fang Nie Lele Zhu Menghua Mu Ruixiao Fan Jingyao li Aaqib Shaheen Yifan liu Can li Wenjuan liu Huihui liang Xinpeng Zhao Shenglong Bai Guanghui Guo Zheng li Yiheng Hu Yuannian Jiao Jonathan Adams Assaf Distelfeld Guiling Sun suoping li Yun Zhou Chun-Peng Song State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesCollege of AgricultureHenan UniversityKaifengHenan 475004China State Key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China School of Geography and Environmental Sciences Nanjing UniversityNanjingJiangsu 210023China Department of Evolutionary and Environmental Biology University of HaifaHaifa 3498838Israel Shenzhen Research Institute of Henan University ShenzhenGuangdong 518000China

Aegilops tauschii,the wild progenitor of wheat D-genome and a valuable germplasm for wheat improvement,has a wide natural distribution from eastern Turkey to ***,the phylogenetic relationship and dispersion history of *** in China has not been scientifically *** this study,we genotyped 208 accessions(with 104 in China)using dd RAD sequencing and 55K SNP array,and classified the population into six *** possible spreading routes or events were identified,resulting in specific distribution patterns,with four sublineages found in Xinjiang,one in Qinghai,two in Shaanxi and one in *** also established the correlation of SNP-based,karyotypebased and spike-morphology-based techniques to demonstrate the internal classification of ***,and developed consensus dataset with 1245 putative accessions by merging data previously *** analysis suggested that eight inter-lineage accessions could be assigned to the putative lineage 3and these accessions would help to conserve the genetic diversity of the *** developing the consensus phylogenetic relationships of ***,our work validated the hypothesis on the dispersal history of *** in China,and contributed to the efficient and comprehensive germplasm-mining of the species.

关键词： Aegilops tauschii Consensus dataset Dispersion history Genetic diversity Phylogenetic relationship

自适应小波阈值去噪算法在低空飞行声目标的应用

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振动与冲击 2017年第9期36卷 153-158,230页

作者：黎锁平周勇周永强兰州理工大学电气工程与信息工程学院兰州理工大学理学院 95876部队

近年来,低空飞行声目标的探测与识别已得到军事领域的重点关注,而如何滤除信号中的背景噪声并准确保留信号的有效特征信息是该领域的一个难点。在研究小波去噪算法特点的基础上,针对低空飞行声目标信号的噪声特性,构建了一个新的阈值函... 详细信息

近年来,低空飞行声目标的探测与识别已得到军事领域的重点关注,而如何滤除信号中的背景噪声并准确保留信号的有效特征信息是该领域的一个难点。在研究小波去噪算法特点的基础上,针对低空飞行声目标信号的噪声特性,构建了一个新的阈值函数,通过自适应调整阈值函数实现在小波分解细尺度和宽尺度上对噪声信号最大限度的滤除,同时,运用香农熵理论来判断最优层数。通过大量的实验仿真验证,并与传统阈值去噪算法比较分析,结果表明该算法对去噪指标SNR有较大尺度的提高,可以更好的去除噪声,并对低空声目标信号去噪有很好的去噪效果。

关键词：小波去噪阈值函数最优层数声目标

Analysis of dough rheological property and gluten quality characteristics in wild emmer wheat(Triticum dicoccoides)

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Analysis of dough rheological property and gluten quality ch...

第八届全国小麦基因组学及分子育种大会

作者： Dale Zhang Yuhao Yuan Yarui Su suoping li School of life Science Henan University

Improvement of flour quality is one of the main objectives in the process of wheat *** is supposed that wild emmer wheat can provide a lot of genetic variants of the endosperm storage proteins in enhancing bread-making ***,the flour quahty of wild emmer wheat itself,which is generally believed to be poor,is lack of awareness *** this work,dough rheofogical properties of 27 accessions of wild emmer wheat were intensively analyzed through the *** results showed that the mean values of water absorption(WA),development time,stability time(ST),and degree of softening(four dough rheofogical parameters) for all the samples were 77.2%,1.73,1.68 min and 116.6 BU,***,the coefficient of variation of ST was apparently higher than those of the other three listed parameters,indicating that there maybe a large difference among the flour quahty of wild emmer *** on the four dough rheofogical parameters mentioned above,the cluster analysis of the 27 accessions of wild emmer wheat revealed good flour quahty in some test materials,while majority of them showed poor ***,two accessions of TD-129 and TD-51,with significantly different flour quahty,are selected and systematically analyzed to deeply understand the flour quality of wild emmer *** is exciting to find that the main quahty parameters of TD-129 reach the normal level or even the strong gluten quahty in absence of wheat D genome,with the values of WA,ST,Mid-line peak time,angle of descent and gluten index reaching 74.55%,9.55,2.63 min,12°and 46.5%,*** results imply that the endosperm storage proteins of TD-129 might contain valuable highquality genes,which could be transferred to bread wheat in an attempt to improve baking quality.

关键词： Farinograph Flour quality Mixo graph Triticum dicoccoides Wild emmer wheat

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时间序列指数平滑模型新体系及算法

应用概率统计 2005年第4期21卷 412-418页

作者：黎锁平刘坤会兰州理工大学理学院兰州730050 北京交通大学理学院北京100044

本文提出了动态平滑参数的概念,由此建立了一类不需选取平滑初值、带有动态平滑参数的指数平滑新模型体系,包括差分-指数平滑模型;又以预测误差平方和SSE最小为目标,构造了优选并自动生成最佳平滑参数使平滑模型得以优化的最速下降算法... 详细信息

本文提出了动态平滑参数的概念,由此建立了一类不需选取平滑初值、带有动态平滑参数的指数平滑新模型体系,包括差分-指数平滑模型;又以预测误差平方和SSE最小为目标,构造了优选并自动生成最佳平滑参数使平滑模型得以优化的最速下降算法,增强了指数平滑模型对时间序列的适应能力.从而较完整的解决了指数平滑预测中,平滑参数靠经验确定且为静态、平滑初值难以确定并易导致预测偏差等问题.

关键词：时间序列指数平滑模型动态平滑参数差分-指数平滑算法

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哈密至将军庙铁路大风观测与研究

铁道建筑 2014年第5期54卷 150-153页

作者：李锁平中铁第一勘察设计院集团有限公司陕西西安710043

根据哈密至将军庙铁路沿线大风形成机理及地形地貌特点，在利用百里风区段既有兰新铁路和附近气象站资料的基础上新建了5个大风观测点，为哈将铁路的选线、防风设计及安全行车提供依据。观测数据分析结果表明：岭南段极大风速值最大，... 详细信息

根据哈密至将军庙铁路沿线大风形成机理及地形地貌特点，在利用百里风区段既有兰新铁路和附近气象站资料的基础上新建了5个大风观测点，为哈将铁路的选线、防风设计及安全行车提供依据。观测数据分析结果表明：岭南段极大风速值最大，越岭段次之，大风风期长，季节分布特征明显，此两段应作为重点防风段落；各观测点极大风速值出现时间点相差2～3h；极大风速值随各观测点的位置呈“钟形”分布，以越岭段风口为中心向线路起点和终点两侧递减，距离风口越近，风速越大，距离风口越远，风速越小；1，2，3号观测点风向集中在 N方向，4号观测点风向集中在 NW 至 WNW 方向，5号观测点风向主要集中在 W方向。

关键词：哈将铁路大风观测

Flour Quality and Related Molecular Characterization of High Molecular Weight Glutenin Subunit Genes from Wild Emmer Wheat Accession TD-256

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Flour Quality and Related Molecular Characterization of High...