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910篇 您的检索式:作者名="Ivanovic V"
    题名 作者 年代 出处 被引量
1黄河三角洲整体冲淤平衡及其地质意义显示文摘海岸侵蚀、三角洲面积减小已成为世界上关注的热点问题。三角洲造陆的趋势及速度制约着三角洲地区经济的持续发展和生态环境的演变。本文以 1976、1986、1992、1996~ 1998年黄河三角洲卫星遥感照片及海区水深等实测资料为依据 ,通过其高潮线的对比分析 ,研究整个黄河三角洲面积变化的趋势。结果表明 ,黄河三角洲在整体淤进的同时伴随着蚀退 ,三角洲的造陆面积呈逐渐减小的趋势。通过对 195 0~ 1998年黄河利津站实测来水来沙资料的分析 ,发现近年来水沙呈递减趋势 ,这可能是三角洲造陆面积减小的重要原因。研究了黄河三角洲造陆面积与流域来水来沙的关系 ,从而得出当来沙量为 2 .45亿 t/ a时 ,三角洲面积整体趋于不冲不淤的平衡。若来水来沙量继续减少 ,黄河三角洲将走向全面蚀退 。刘曙光 李从先 丁坚 李希宁 Ivanov V V 2001海洋地质与第四纪地质2001,21,4:25
2部分重力条件下气液两相流型研究显示文摘本文分析了“和平号”空间站气液两相流实验中获得的部分重力(0.1g和0.014g)条件下的流型特征及其相互转换条件,并将其和常重力与微重力两相流研究中较常用的流型转换模型的预测结果进行了比较。赵建福 解京昌 林海 胡文瑞 A V Ivanov A Yu Belyaev 2004工程热物理学报2004,25,1:6
3Single-cell profiling reveals the trajectories of natural killer cell differentiation in bone marrow and a stress signature induced by acute myeloid leukemia显示文摘Natural killer(NK)cells are innate cytotoxic lymphoid cells(ILCs)involved in the killing of infected and tumor cells.Among human and mouse NK cells from the spleen and blood,we previously identified by single-cell RNA sequencing(scRNAseq)two similar major subsets,NK1 and NK2.Using the same technology,we report here the identification,by single-cell RNA sequencing(scRNAseq),of three NK cell subpopulations in human bone marrow.Pseudotime analysis identified a subset of resident CD56^(bright) NK cells,NK0 cells,as the precursor of both circulating CD56dim NK1-like NK cells and CD56^(bright) NK2-like NK cells in human bone marrow and spleen under physiological conditions.Transcriptomic profiles of bone marrow NK cells from patients with acute myeloid leukemia(AML)exhibited stress-induced repression of NK cell effector functions,highlighting the profound impact of this disease on NK cell heterogeneity.Bone marrow NK cells from AML patients exhibited reduced levels of CD160,but the CD160high group had a significantly higher survival rate.Adeline Crinier Pierre-Yves Dumas Bertrand Escalière Christelle Piperoglou Laurine Gil Arnaud Villacreces Frédéric Vély Zoran Ivanovic Pierre Milpied Émilie Narni-Mancinelli Éric Vivier 2021Cellular & Molecular Immunology2021,18,5:5
4Argo floats revealing bimodality of large-scale mid-depth circulation in the North Atlantic显示文摘Analysis of Argo float trajectories at 1 000 m and temperature at 950 m in the North Atlantic between November 2003 and January 2005 demonstrates the existence of two different circulation modes with fast transition between them. Each mode has a pair of cyclonic-anticyclonic gyres. The difference is the location of the cyclonic gyre. The cyclonic gyre stretches from southeast to northwest in the first mode and from the southwest to the northeast in the second mode. The observed modes strongly affect the heat and salt transport in the North Atlantic. In particular, the second mode slows down the westward transport of the warm and saline water from the Mediterranean Sea.CHU Peter C IVANOV Leonid M MELNICHENKO Oleg V LI Rongfeng 2008Acta Oceanologica Sinica2008,27,2:4
5放电脉冲重频准分子激光器在不同应用领域的发展现状(英文)显示文摘研究了脉冲宽度为25~40 ns的放电脉冲XeCl准分子激光器的工作参数。结果显示,激光器产生的脉冲能量为0.2~0.7 J,重复频率为100 Hz,表明在泵浦功率为2.8~3.3 MW/cm3时,激光器实现了2.6%的激光效率和3.8%的本征效率。LOSEV V F PANCHENKO Yu N DUDAREV V V IVANOV N G KONOVALOV I N PAVLINSKY A V PUCHIKIN A V 2011中国光学2011,4,1:3
6Peculiarities of ethane oxidation on V2O5/SiO2 catalysts with different silica structure and morphologh显示文摘A V Kucherov A V Ivanov T N Kucherova 2003Catal Today2003,81,:2
7基于XeF(C-A)放大器的混合(固态/气态)超高功率飞秒激光系统(英文)显示文摘提出了基于前端发生器和终端放大器,使用光泵浦XeF(C-A)激活介质的太瓦级混合激光器(THL-100)系统。前端发生器由长532 nm的连续激光泵浦的钛宝石飞秒脉冲振荡器,脉冲展宽机构,532 nm的脉冲激光泵浦的再生多通道放大器,衍射光栅压缩器和二次谐波发生器(KDP)组成。其光束输出参数为:脉冲持续时间50 fs,二次谐波(475 nm)辐射能量5 mJ。前端发生器以10 Hz的单脉冲模式工作。XeF(C-A)放大器由双高压脉冲发生器(线性变压器),爆炸式阴极发射真空二极管,电子束注入系统,充满Xe的气室转换器和激光单元组成。高压发生器包括12个变压器,每个变压器有8个电容(40 nF)和火花隙,电容可以充电至100 kV。真空二极管中的电子束参数为:总电流300 kA,峰值电压550kV,脉冲持续时间约150 ns。穿透金属箔片到达Xe转换器的6个100 cm×12 cm电子束的总能量为67 kJ。激光系统通过泵浦能量的级联处理导致Xe2*的快速形成,并在(172±5)nm连续辐射。真空紫外辐射通过CaF2窗口辐射到含有XeF2蒸汽和氮气缓冲气体的激光单元中,使XeF2光解,形成XeF*准分子。由真空紫外辐射泵浦的放大器激活介质长110 cm,直径为24 cm。文中通过数值模拟给出了输出参数和第一实验结果,根据XeF(C-A)放大器参数模型和增益测量结果,得到的输出能量高达23 J,这意味着50 fs脉冲的峰值功率高达4060 TW。LOSEV V ALEKSEEV S IVANOV N KOVALCHUK B MIKHEEVL MESYATS G PANCHENKO Yu PUCHIKIN A RATAKHIN N YASTREMSKY A 2011光学精密工程2011,19,2:2
8丝阵靶箍缩等离子体软X射线辐射能谱研究显示文摘在S—300装置上研究了丝阵靶Z箍缩等离子体的软X射线辐射的动态过程。利用多通道X射线谱仪在50~2000eV范围内测量了丝阵靶内爆等离子体X射线辐射谱,辐射主要位于60~220eV谱段。辐射谱可用温度为40~50eV的Planck黑体谱近似描述。在能量高于500eV的谱段,辐射谱与Planck黑体谱有较大的偏离。这主要是因为等离子体热斑的出现、在1.5~2keV范围内线谱的存在和加速电子轫致辐射的结果。蔡红春 Chernenko A S Korolev V D Ustroev G I Ivanov M I 2005强激光与粒子束2005,17,6:2
9Ammonia formation on (Ru plus Cs)/C catalysts by the interaction of adsorbed nitrogen with hydrogen that diffused from the bulk of cesium-ruthenium particles显示文摘Trukhan S N Ivanov V P Kochubey D I 2003Kinetics and Catalysis2003,44,5:1
10Tuning the photonic band gap of sub-500-nm-pitch holey fibers in the 930-1030-nm range显示文摘Fedotov A B Ivanov A A Alfimov M V 2000Laser Phys2000,10,5:1
11Biomass and porosity profiles in microbial granules used for aerobic wastewater treatment显示文摘TAY J H TAY S T L IVANOV V etal 2003Letters in applied microbiology (S 0266-8254)2003,36,:1
12Frequency Bands for Optimum Propagation of Complex Signals through Shortwave Radio Channels显示文摘Ivanov D V 2006Journal of Communications Technology and Electronics2006,51,4:1
13Inhibition of low-density lipoprotein oxidation by carnosine and histidine显示文摘DECKER E A IVANOV V ZHU B Z 2001J Agric Food Chem2001,49,1:1
14Age-dependent morphology of human pineal gland: supravital study 显示文摘Ivanov S V 2007Adv Gerontol2007,20,2:1
15Qualitative and quantitative determination of biologically active low-molecular-mass thiols in human blood by reversed-phase high-performance liquid chromatography with photometry and fluorescence detection显示文摘Ivanov A R Nazimov I V Baratova L A 2000Journal of Chromatography A2000,870,12:1
16Bacteriological monitoring of ships ballast water in singapore and its potential importance forthe managementof coastal显示文摘Ivanov V 2006ecosystems WIT2006,145,:1
17THE RISK OF RADIATION-INDUCED CEREBROVASCULAR DISEASE IN CHERNOBYL EMERGENCY WORKERS显示文摘V K. Ivanov M A. Maksioutov S Yu. Chekin A V. Petrov A P. Biryukov Z G. Kruglova V A. Matyash A F. Tsyb K G. Manton J S. Kravchenko 2006Health Physics2006,,:1
18Radiosensitization of melanoma cell through combined inhibition of protein regulators of cell survival显示文摘Johnson G E Ivanov V N Hei T K 2008Apoptosis2008,13,6:1
19Metabolism of minerals and vitamins in Black Pied primiparous cows on a diet containing different amounts of zinc显示文摘 IVANOV A A GURTSKAYA M T 1991Timiryazevskoi Sel''skogkhozya?stoenno? Akademii1991,,3:1
20显示文摘Ivanov A E Panahi H A Kuzimenkova M V 2006Chem Euro J2006,12,:1
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