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AOS虚拟信道复用技术研究与仿真

宇航学报 2011年第1期32卷 193-198页

作者：别玉霞潘成胜蔡睿妍南京理工大学自动化学院南京210094 大连大学通信与网络重点实验室大连116622

为有效传输空间数据系统不同业务类型的大容量、高速率数据,AOS中各虚拟信道以时分复用的方式共享同一物理信道,通过对数据类型的分析,设计了一种边界可移动的VIP/同步/异步混合复用方式,并确定了同步虚拟信道和异步虚拟信道的调度策略... 详细信息

为有效传输空间数据系统不同业务类型的大容量、高速率数据,AOS中各虚拟信道以时分复用的方式共享同一物理信道,通过对数据类型的分析,设计了一种边界可移动的VIP/同步/异步混合复用方式,并确定了同步虚拟信道和异步虚拟信道的调度策略。从各虚拟信道的吞吐量、剩余量、缓存需求和延时性能角度进行仿真,结果表明该复用技术兼顾了不同业务数据的特征,比全同步复用方式具有更高的复用效率,比全异步复用方式具有更好的公平性,可保证信道合理高效利用。

关键词：虚拟信道复用同步异步

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采场上覆岩层面接触块体结构的力学机理分析

煤炭学报 2008年第1期33卷 33-37页

作者：冯国瑞王鲜霞康立勋太原理工大学矿业工程学院山西太原030024

在现场观测的基础上,建立了直接顶面接触块体结构的物理力学模型,并分析了其力学实质,提出了面接触块体结构的力学定义.同时基于块体理论中确定关键块体的思想,运用矢量分析法确定了面接触块体结构中的关键接触面,对其进行了力学分析,... 详细信息

在现场观测的基础上,建立了直接顶面接触块体结构的物理力学模型,并分析了其力学实质,提出了面接触块体结构的力学定义.同时基于块体理论中确定关键块体的思想,运用矢量分析法确定了面接触块体结构中的关键接触面,对其进行了力学分析,从而深入研究了面接触块体结构的力学特性,获得了结构整体所受的挤压力和摩擦力的解析式,并且针对大阳泉煤矿8113综放工作面进行了实例计算,所得结果与现场矿压观测结果基本吻合.

关键词：上覆岩层块体结构力学机理

Hydrogen Extraction Characteristics of Electrochemical Hydrogen Pump Using Proton-conducting Ceramics CaZr0.9In0.1O3-α

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Hydrogen Extraction Characteristics of Electrochemical Hydro...

作者： xia Ti-rui YANG Hong-guang HE Chang-shui YANG Li-ling ZHAO Wei-wei LIU Zhen-xing Department of Reactor Engineering Research and Design

To develop high-efficiency and economical hydrogen isotope purification and recovery processes for a tritium extraction system in a fusion reactor,hydrogen extraction characteristics of an electrochemical hydrogen pump using a one-end closed tube made of proton-conducting ceramic CaZrinO(effective electrode area was 160 cm)were *** hydrogen pumping characteristics were evaluated over the

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不同模式自组织介质中声波传播特性的比较研究

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地球物理学报 2007年第3期50卷 830-836页

作者：刘永霞徐春明宁俊瑞中国科学院地质与地球物理研究所

中型和大型尺度结构构造分区性,使得地球内部介质地震波速度表征出大尺度的确定性模型,而小尺度上微孔和裂隙的存在会导致地震波速度分布的随机扰动,即自组织模型.目前地震学中常用的6种模式自组织模型为:高斯型、指数型、自相似型、白... 详细信息

中型和大型尺度结构构造分区性,使得地球内部介质地震波速度表征出大尺度的确定性模型,而小尺度上微孔和裂隙的存在会导致地震波速度分布的随机扰动,即自组织模型.目前地震学中常用的6种模式自组织模型为:高斯型、指数型、自相似型、白噪声、Flicker噪声和Brown噪声.我们从其滤波因子入手,比较了不同模式的自组织模型特征,结合有限差分法地震记录模拟及地震波特征分析,对比了上述6种模式自组织介质中声波传播特性.结果表明:地震波对不同模式的自组织介质的地震响应不同,如波形、能量、振幅等.由此我们可以通过分析实际地震记录的复杂性特征来鉴别其自组织类型,从而更好地解释实际地震资料.

关键词：自组织结构声波复杂性特征 6种模式大尺度构造小尺度扰动

Molecular characterization and phylogenetic analysis of the eukaryotic translation initiation factor 4A gene in Antheraea pernyi

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Molecular characterization and phylogenetic analysis of the ...

中国蚕学会第九届青年学术研讨会

作者： Miao-Miao CHEN Yan-Qun LIU Yan Li rui YAO Mo CHEN Run-Xi xia 李群 Li QIN Insect Resource Center for Engineering and Technology of Liaoning Province College of Bioscience and BiotechnologyShenyang Agricultural University Key Laboratory of Wild Silkworms of Liaoning Province Sericultural Institute of Liaoning Province

Eukaryotic initiation factor 4 A（eIF-4 A） is an essential component for protein translation in *** eIF-4 A gene（ApeIF-4 A） was isolated and characterized from Antheraea *** obtained cDNA sequence was 1435 bp long with an open reading frame（ORF） of 1266 bp encoding 421 amino *** predicted amino acid sequence shared several conserved features as found in known eIF-4 As,and revealed 74 and 78% identities with eIF-4 As of Homo sapiens and Drosophila melanogaster,***-PCR analysis showed that ApeIF-4 A was transcribed at four developmental stages and in all tissues tested,suggesting that it plays an important role in development of *** alignment suggested that eIF-4 As are highly conserved throughout evolution of eukaryote *** trees based on the amino acid and nucleotide sequences of eIF-4 A demonstrated a similar topology with the classical systematics,suggesting that it has the potential value in phylogenetic inference of eukaryotes.

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不依赖GPS的磁图测绘与校正新方法

宇航学报 2011年第1期32卷 60-65页

作者：寇义民夏红伟刘睿王常虹哈尔滨工业大学空间控制与惯性技术研究中心哈尔滨150001

针对水下磁场测绘中因载体难以经常上浮修正导航误差而导致的测绘结果坐标误差较大的问题,结合磁场测量的特殊性,并采用边导航边校正的思想,提出了一种不依赖GPS的全新磁图测绘方法。首先以惯性导航系统为标准进行第一次测绘并获得具有... 详细信息

针对水下磁场测绘中因载体难以经常上浮修正导航误差而导致的测绘结果坐标误差较大的问题,结合磁场测量的特殊性,并采用边导航边校正的思想,提出了一种不依赖GPS的全新磁图测绘方法。首先以惯性导航系统为标准进行第一次测绘并获得具有一定坐标误差的初始磁图,然后对初始磁图进行图形处理与信息提取,在此基础上进行第二次测绘。在第二次测绘中用从初始磁图获得的特征信息结合磁场传感器与惯性器件的输出构建卡尔曼滤波器,从而达到同时修正自身运动状态与初始磁图的目的。理论分析与仿真结果都证实了本方法可以通过两次误差较大的低精度测绘获得精度高得多的测绘结果。

关键词：地磁导航水下磁图测绘磁图校正边导航边测绘磁图处理

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碳中心自由基荧光探针的研究进展

分析化学 2023年第7期51卷 1067-1076页

作者：刁睿窦相南汪夏燕北京工业大学化学系环境安全与生物效应卓越中心绿色催化与分离北京市重点实验室

碳中心自由基是环境与生物体内产生的关键活性中间体，检测碳中心自由基对于理解涉及碳中心自由基的自由基转化机制具有重要意义。近年来，研究者发展了一系列利用双功能荧光捕获探针检测碳中心自由基的方法。本文从荧光基团、自由基捕... 详细信息

碳中心自由基是环境与生物体内产生的关键活性中间体，检测碳中心自由基对于理解涉及碳中心自由基的自由基转化机制具有重要意义。近年来，研究者发展了一系列利用双功能荧光捕获探针检测碳中心自由基的方法。本文从荧光基团、自由基捕获基团和捕获探针的应用等方面评述了近年来双功能荧光捕获探针检测碳中心自由基的研究进展，并对其发展前景进行了展望。

关键词：碳中心自由基荧光探针自由基捕获评述

来源：博看期刊

Iguratimod Restrains Follicular Helper T Cell Function by Inhibiting Glucose Metabolism via Hif1α-HK2 Axis in Rheumatoid Arthritis

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Iguratimod Restrains Follicular Helper T Cell Function by In...

第十四届全国免疫学学术大会

作者： Ziran Bai Qian Lin Zhimin Lu rui Liu Yawei Tang xiaokang Ye Minli Jin Guan Wang xia Li Dalian medical university 南京医科大学第一附属医院(江苏省人民医院)

Objective:Iguratimod(IGU) is a novel disease modified anti-rheumatic drug,which can directly act on B cells to inhibit the production of ***,the role of IGU in regulating the specific biological properties of follicular helper T(Tfh) cells in rheumatoid arthritis(RA) patients and its mechanism remains *** metabolic pathway is closely related to T cell homeostasis,differentiation,and ***,we aim to explore whether IGU can inhibit Tfh cell function and investigate the potential effect of IGU on cell glucose ***:Peripheral blood mononuclear cells or purified CD4T cells from RA patients were cultured with or without IGU(100 μg/ml).T cell-dependent antibody production was assessed by a T-B cell co-culture system and detected by *** CD4T cell proliferation,activation,and Tfh cell-related molecules and cytokines were detected by flow *** glucose uptake in CD4T cells was detected by the 2-NBDG *** expression of glucose metabolism-related enzymes was detected by RT-qPCR or flow *** signal molecules were assessed by flow *** of RA patients were pretreated with hexokinase(HK2) inhibitor 2-DG,mTOR inhibitor-Rapamycin,or Hif1α inhibitor-Echinomycin,and then treated with IGU or *** expression ICOS,the level of IL-21,and the frequencies of Tfh cells were detected by flow *** of RA patients were pretreated with or without Adaptaquin to activate Hif1α and then treated with IGU or *** expression of HK2 in CD4T cells was detected by flow ***:(1) IGU inhibits T cell-dependent antibody production.(2) IGU inhibits RA-CD4T cell proliferation and activation.(3) IGU inhibits the Tfh cell function of RA patients.(4) IGU inhibited the function of RA-Tfh cells by regulating HK2.(5) Hif1α but not mTOR plays a key role in IGU mediated Tfh cell suppression.(6) Activation of Hif1α signal significantly upregulated the expression of HK2 in RA-CD4T cells,and the upregulation o

关键词： Rheumatoid arthritis Follicular helper T cells Iguratimod Glucose metabolism Hif1α-HK2 axis

Supercooling Capacity and Cold Tolerance of the Wild Silkworm,Antheraea pernyi（Lepidoptera:Saturniidae）

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Supercooling Capacity and Cold Tolerance of the Wild Silkwor...

中国蚕学会第十届青年学术研讨会

作者：刘彦群 XI-XI ZHENG HONG-FANG MA RUN-XI xia YU-PING LI QI-rui ZHANG State Key Laboratory of Silkworm Genome Biology Southwest University Department of Sericulture College of Bioscience and BiotechnologyShenyang Agricultural University Department of Evolution Ecologyand Organismal BiologyThe Ohio State University

While wild silkworms have served humans for several thousand years,little attention on cold hardiness has been paid to these economically important *** the present study,supercooling capacity and low temperature tolerance of Chinese oak silkworm,Antheraea pernyi（Guérin-Méneville）（Lepidoptera:Saturniidae）,an economic insect reared both for silk production as well as human food,were examined under laboratory *** supercooling points（SCPs） of pupae dropped significantly from a mean of –15.6 ℃ in pre-diapause to –20.1 ℃ in diapause,and then increased to–17.5 ℃ during post-diapause *** and voltinism influenced body mass but had no significant effect on the *** data demonstrated that cold tolerance of *** is tightly linked to life *** of eggs to –5 ℃ for up to 8 hrs had no effect on the hatching rate,whereas silkworm larvae failed to break through the chorion and hatch following a 4-8 h exposure to –10 ℃.Mean SCPs of intact eggs and naked larvae one day before hatching were similar,–23.3 ℃ and –22.3 ℃,respectively,indicating that chorion does not significantly affect *** of lower lethal temperature（LLT50） and SCP means suggested that both pupae and eggs of *** are chill *** data will improve our understanding of low temperature tolerance in this commercially important species.

关键词： Antheraea pernyi cold tolerance diapause supercooling capacity