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新疆植物区系新资料(英文)

植物分类学报 2006年第5期44卷 598-603页

作者： Dmitry A. GERMAN Alexander I. SHMAKOv 张宪春陈文俐 sergey v. SMIRNOv 谢磊 Rudolph v. KAMELIN 王健 Altai State University Barnaul 656049 Russia 系统与进化植物学国家重点实验室中国科学院植物研究所 Komarov Botanical Institute St.-Petersburg 197376 Russia 新疆阿勒泰地区林业科学研究所

报道了采自新疆阿尔泰山地区的1个中国新记录属假糖芥属Rhammatophyllum O. E. Schulz, 6个中国新记录种——渐尖岩蕨Woodsia acuminata (Fomin) Sipl.、短命繁缕Stellaria alsinoides Boiss. & Buhse、假糖芥Rh. erysimoides (Kar. & Kir.) Al-Shehbaz & O. Appel、克氏鹤虱Lappula krylovii Ovczinnikova, A. I. Pjak & A. L. Ebel、肝色柳穿鱼Linaria hepatica Bunge和佐氏新缬草valerianella szovitsiana Fisch. & Mey.。

关键词：假糖芥属渐尖岩蕨短命繁缕假糖芥克氏鹤虱肝色柳穿鱼佐氏新缬草新记录新疆中国

Influence of Carbon Content of WC-Co Electrode Materials on the Wear Resistance of Electrospark Coatings

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Journal of Surface Engineered Materials and Advanced Technology 2012年第2期2卷 65-70页

作者： Alexander A. Burkov sergey A. Pyachin Alexey v. Zaytsev Institute of Materials Khabarovsk Scientific Centre Far East Branch Russian Academy of Sciences Khabarovsk Russia.

In the electrospark deposition (ESD) of WC-Co materials on low carbon steel, tungsten carbide (WC) decarburization is observed. The use of an inert atmosphere (argon) does not eliminate the problem of tungsten carbide decarburization during electrospark processing. The effect of the carbon concentration of electrode materials on the phase composition and mechanical properties of WC (10 wt% of Co) ESD coatings has been investigated in this work. The introduction of additional carbon (graphite) in the electrode material on the basis of the WC-10%Co leads to an increased amount of WC in the obtained coatings and thus improves their wear resistance.

关键词： Hard Coating Electrospark Deposition Tungsten Carbide Wear

Space Magnetism and Superconductivity: Diamagnetic Expulsion, Meissner Effect, Magnetic Pressure and Quantum Trapping Lead to the Origin and Stability of the Saturn Rings

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Journal of Applied Mathematics and Physics 2019年第8期7卷 1625-1636页

作者： vladimir v. Tchernyi (Cherny) Andrey Yu. Pospelov sergey v. Kapranov Modern Science Institute SAIBR Moscow Russia Independent Researcher Los Angeles USA A.O. Kovalevsky Institute of Marine Biological Research RAS Sevastopol Russia

Existence of the magnetic field of Saturn and the temperature around 70 - 100 K nearby of it bring us to the idea of diamagnetism and superconductivity of the rings particles. The rings could emerge from the icy particles moving on chaotic orbits around Saturn within protoplanetary cloud. After appearance of the magnetic field of Saturn all chaotic orbits of icy particles start to shift to the magnetic equator plane, where there is a minimum of the particles magnetic energy, due to diamagnetic force of expulsion like Meissner phenomenon. Each particle comes to the stable position preventing its own horizontal and vertical shift. Particles are locked within three-dimensional magnetic well due to Abrikosov quantum vortex phenomenon for superconductor. This mechanism is valid and it works even particles have a small fraction of superconductor. Final picture is similar to the picture of iron particles forms the same shape around a magnet on laboratory table. Any other phenomena like gravity resonances, dusty plasma and others may bring some peculiarities to the final picture of the rings. It follows that magnetic field of Saturn and low temperature around of it are the main reason for the rings origin and the rings is product of the early time of the magnetic field of Saturn appearance. Additional matter to the rings also may come from the frozen water particles generated from the Saturn sputniks geysers due to magnetic coupling between planet and satellites. The data of Cassini mission to Saturn rings are conforming suggested theory of their origin and existence.

关键词： Saturn Rings Origin Space Magnetism Space Diamagnetism Space Superconductivity Space Ice

37ka以来日本海沉积物有机质碳和氮稳定同位素变化及其古海洋学意义

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地学前缘 2022年第4期29卷 123-135页

作者：邹建军宗娴朱爱美豆汝席林锦辉冯旭光董智 sergey A.GORBARENKO 郑立伟石学法自然资源部第一海洋研究所海洋地质与成矿作用重点实验室山东青岛266061 青岛海洋科学与技术试点国家实验室海洋地质过程与环境功能实验室山东青岛266237 俄罗斯科学院远东分院太平洋海洋研究所俄罗斯符拉迪沃斯托克690041 海南大学南海海洋资源利用国家重点实验室海南海口570000

海洋沉积物有机质碳氮稳定同位素(δ^(13)C、δ^(15)N)广泛用于有机质来源示踪、古生产力和古海洋环境重建。日本海沉积物δ^(13)C和δ^(15)N值一个显著特征是在末次冰盛期(LGM)同步负偏,但是对这一现象产生的原因以及他们的演化过程的... 详细信息

海洋沉积物有机质碳氮稳定同位素(δ^(13)C、δ^(15)N)广泛用于有机质来源示踪、古生产力和古海洋环境重建。日本海沉积物δ^(13)C和δ^(15)N值一个显著特征是在末次冰盛期(LGM)同步负偏,但是对这一现象产生的原因以及他们的演化过程的认识仍然存在明显不足。在本研究中,我们详细调查了37 ka以来日本海中部Lv53-23-1岩心沉积物δ^(13)C和δ^(15)N演化历史。结果显示,沉积物δ^(13)C和δ^(15)N分别介于-26.3‰至-22.5‰和1.6‰至6.1‰,低值出现在LGM(26.5~17 ka)暗色层状泥发育时期,指示较强的陆源输入贡献。在Heinrich冰阶1时期(17~14.5 ka),δ^(13)C和δ^(15)N快速正偏,表明日本海海洋环境发生了明显的转换,对应于对马海峡淹没及对马暖流入侵。14.5 ka之后,沉积物δ^(15)N值恢复到5‰,与开阔大洋海水硝酸盐的δ^(15)N值近似。我们采用二端员混合模型粗略地估算了有机质来源的相对贡献。LGM时期陆源有机质贡献介于65%至80%,14.5 ka以后海源有机质贡献介于60%至80%。除了增加的陆源有机质贡献以外,LGM时期沉积物δ^(15)N亏损还涉及如下过程:(1)较高的含Fe沙尘供给提高日本海表层海洋生物固氮效率;(2)缺氧环境盛行减弱成岩作用对沉积物δ^(15)N影响。37 ka以来,日本海沉积物δ^(13)C和δ^(15)N变化与有机质来源、营养盐的供给、表层生产力和沉积物氧化还原条件相关,实际受海平面和全球气候制约。

关键词：碳氮稳定同位素沉积物有机质来源海平面末次冰期日本海

Web service for biodiversity estimation using remote sensing data

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International Journal of Digital Earth 2008年第4期1卷 367-376页

作者： Mikhail A.Popov Nataliia N.Kussul sergey A.Stankevich Anna A.Kozlova Andrii Yu.Shelestov Oleksii M.Kravchenko Mykhailo B.Korbakov Serhiy v.Skakun Scientific Centre for Aerospace Research of the Earth KievUkraine Department of Space Information Technologies and Systems Space Research Institute NASU-NSAUKievUkraine

This paper presents a technique for the assessment and mapping of land biodiversity by using remote sensing *** proposed approach uses a fuzzy model that encapsulates different ecological factors influencing *** imple... 详细信息

关键词： potential biodiversity index remote sensing data product pre-Black Sea region of the Ukraine web service

Generation of dual and quad‑optical frequency combs in the injected radiation free mode‑locked frequency‑shifted feedback laser

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Frontiers of Optoelectronics 2023年第3期16卷 43-56页

作者： sergey N.Mantsevich Ekaterina I.Kostyleva Andrey N.Danilin vladimir S.Khorkin Physics Department M.V.Lomonosov Moscow State UniversityMoscow 119991Russia Russian Quantum Center(RQC) Skolkovo 143026Russia

The results of an optoelectronic system—frequency-shifted feedback(FSF)laser experimental examination are *** considered FSF laser is seeded only with optical amplifer spontaneous emission(ASE)and operates in the mode-locked regime,whereby the output radiation is sequence of short pulses with a repetition rate determined by the delay time in its optical feedback *** the frequency domain,the spectrum of such a pulse sequence is an optical frequency comb(OFC).These OFCs we call *** consider the possibility of tunable acousto-optic(AO)dual and quad-comb frequency spacing downconversion in the FSF laser seeded with ASE and operating in the mode-locked *** examined system applies a single frequency shifting loop with single AO tunable flter as the frequency shifter that is fed with several radio frequency signals *** initial OFCs with frequency spacing of about 6.5 MHz may be obtained in the wide spectral range and their width,envelope shape and position in the optical spectrum may be *** dual-combs are obtained with a pair of initial OFCs aroused by two various ultrasound waves in the acousto-optic tunable flter(AOTF).The dual-combs frequency spacing is determined by the frequency diference of the signals applied to the AOTF piezoelectric transducer and can be tuned *** quad-combs are obtained with three initial OFCs,forming a pair of dual-combs,appearing when three ultrasound frequencies feed the AOTF *** quad-combs frequency spacing is defned by the diference between the frequency spacing of ***-combs with more than 5000 spectral lines and tunable frequency spacing are *** successive frequency downconversion gives the possibility to reduce the OFC frequency spacing form several MHz for initial OFC to tens of kHz for quad-combs.

关键词： Frequency-shifted feedback laser Optical frequency combs Acousto-optics Dual-combs Quad-combs

基于GIS模拟的votkinsk水库流域积雪和融化过程（英文）

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Journal of Geographical Sciences 2018年第2期28卷 221-237页

作者： sergey v. PYANKOv Andrey N. SHIKHOv Nikolay A. KALININ Eugene M. SvIYAZOv Department of Cartography and Geoinformatics Perm State University 15 Bukireva Street 614990 Perm Russia Department of Meteorology and Atmosphere Protection Perm State University 15 Bukireva Street 614990 Perm Russia

Coupled hydrological and atmospheric modeling is an efficient method for snowmelt runoff forecast in large basins. We use short-range precipitation forecasts of mesoscale at- mospheric Weather Research and Forecasting （WRF） model combining them with ground-based and satellite observations for modeling snow accumulation and snowmelt processes in the votkinsk reservoir basin （184,319 km2）. The method is tested during three winter seasons （2012-2015）. The MODIS-based vegetation map and leaf area index data are used to calculate the snowmelt intensity and snow evaporation in the studied basin. The GIS-based snow accumulation and snowmelt modeling provides a reliable and highly detailed spatial distribution for snow water equivalent （SWE） and snow-covered areas （SCA）. The modelling results are validated by comparing actual and estimated SWE and SCA data. The actual SCA results are derived from MODIS satellite data. The algorithm for assessing the SCA by MODIS data （ATBD-MOD 10） has been adapted to a forest zone. In general, the proposed method provides satisfactory results for maximum SWE calculations. The calculation accuracy is slightly degraded during snowmelt periods. The SCA data is simulated with a higher reliability than the SWE data. The differences between the simulated and actual SWE may be explained by the overestimation of the WRF-simulated total precipitation and the unrepresentativeness of the SWE measurements （snow survey）.

关键词： snow accumulation and snowmelt processes snow water equivalent GIS-based modeling WRF-ARW model

CvD生长多壁碳纳米管的拉曼光谱径向呼吸振动模式观察(英文)

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新型炭材料 2015年第5期30卷 385-390页

作者： valeriy v.Bolotov vasiliy E.Kan Egor v.Knyazev Peter M.Korusenko sergey N.Nesov Yuriy A.Sten`kin viktor A.Sachkov Irina v.Ponomareva Omsk Scientific Center of Siberian Branch Russian Academy of Sciences

采用拉曼光谱仪、透射电镜、俄歇能谱仪、X射线光电子能谱仪等研究在Si O2/Si基底上化学沉积的多壁碳纳米管(MWCNTs)经390℃的空气中热处理120 min前后与HCl溶液化学处理前后的结构变化情况。拉曼光谱集中测试低频(250-300 cm-1)带。结... 详细信息

采用拉曼光谱仪、透射电镜、俄歇能谱仪、X射线光电子能谱仪等研究在Si O2/Si基底上化学沉积的多壁碳纳米管(MWCNTs)经390℃的空气中热处理120 min前后与HCl溶液化学处理前后的结构变化情况。拉曼光谱集中测试低频(250-300 cm-1)带。结果表明,经热处理和化学处理后,在250-300 cm-1形成的拉曼带在峰位和半宽几乎没变。由透射电镜可知,小直径碳纳米管的内径值与拉曼光谱测试结果一致。这些结果表明,低频带产生于小直径碳纳米管的内壁中碳原子的径向呼吸振动。

关键词：碳纳米管径向振动模式拉曼化学气相沉积显微镜

Single and multi domain buckled germanene phases on Al(111)surface

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Nano Research 2019年第12期12卷 2988-2996页

作者： Dmitriy A.Muzychenko sergey I.Oreshkin vladimir I.Panov Chris van Haesendonck Andrey I.Oreshkin Faculty of Physics Lomonosov Moscow State University119991 MoscowRussia Sternberg Astronomical Institute Lomonosov Moscow State University119234 MoscowRussia Solid-State Physics and Magnetism Section KU LeuvenBE-3001 LeuvenBelgium

The simultaneous formati on of single domain(3×3)and multi domai n(√7×√7)R(±19.1°)germa nene phases on Al(111)surface in thesub-monolayer range was studied using seanning tunneling microscopy(STM)and density functional theory(DFT)based *** results revealed that both germa nene phases nu cleate and grow in dependently from each other and regardless of Al substratetemperature within significantly expanded range Ts=27-200℃.Our results unambiguously showed that STM images with hexagonalcontrast yield correct-resolved structure for both germanene phases,while honeycomb contrast is a result of an artificial tip-induced STM ***-principles calculations suggested atomic models with strongly buckled germanene(2×2)/Al(111)(3×3)and(√3×√3)R30°/Al(111)(√7×√7)R(±19.1°)with one of eight and one of six Ge atoms protruding upward respectively,that consistently describe the experimentally observed STM images both for single and multi domai n surface *** to the DFT based simulati ons both germa nene(2×2)and(√3×√3)R30°superstructures have a stretched lattice strain with respect to the ideal free-standing germa nene by 6.2%and 13.9%,***,numerous small domains separated by domain boundaries in the(√3×√3)R30°/Al(111)(√7×√7)R(±19.1°)germanenephase tend to reduce the surface energy and prevent the formation of extended single domains,in contrast to the(2×2)/Al(111)(3×3)***,our experimental results showed that the nucleation and growth of germa nene on Al(111)surface yield strong modifications of Alsurface even at room temperature(RT),which may be contributed to the formation of Al-Ge alloy due to Ge surface solid-states reactivitythat was ignored in recent *** is already evident from our present findings that the role of Al atoms in the formation of(3×3)and(√7×√7)R(±19.1°)germa nene phases is worthy to be carefully studied in the future,which could be an important knowledge for large-quantityfabrication of germane

关键词： germanene two-dimensional(2D)materials scanning tunneling microscopy density functional theory aluminum