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The response of zooplankton abundance in saline meromictic Lake Shira to a change in circulation regime

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Journal of Oceanology and Limnology 2023年第4期41卷 1321-1330页

作者： Yuri v.BARKHATOv.alexander P.TOLOMEEv.Anton v.DROBOTOv.Egor S.ZADEREEv Krasnoyarsk Research Center Institute of BiophysicsSiberian Branch of Russian Academy of SciencesAkademgorodokKrasnoyarsk 660036Russia Institute of Fundamental Biology and Biotechnology Siberian Federal UniversityKrasnoyarsk 660041Russia

The long-term data(1996-2021)on the summer abundances of the dominant zooplankton species(copepod Arctodiaptomus salinus(Daday,1885),rotifers Brachionus plicatilis(Müller,1786)and Hexarthra sp.)in saline Lake Shira were used to analyze the response of zooplankton to air temperature and a change in the circulation regime of the lake:breakdown and reestablishment of *** groups of zooplankton responded to prolonged summer elev.ted temperatures by increasing their *** the breakdown of the stable stratification of Lake Shira(2015-2016),zooplankton abundance increased on av.rage by a factor of two and amounted to 9×10^(5)inds./m^(2)in the water column for *** increase coincided with similar responses of other components of the lake’s mixolimnion ecosystem,whose biomasses increased approximately two-fold during that *** the reestablishment of the meromixis,the abundance of zooplankton decreased to prev.ous ***,the abundance of zooplankton is largely determined by weather(the effect of temperature)and ecological factors(mixing regime).

关键词： meromictic lake zooplankton copepods rotifers meromixis breakdown

Design Methodology for the Micronozzle-Based Electrospray Ev.porativ. Cooling Dev.ces

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Journal of Electronics Cooling and Thermal Control 2012年第2期2卷 17-31页

作者： Hsiu-Che Wang alexander v. Mamishev Electrical Engineering University of Washington Seattle United States Mechanical Engineering University of Washington Seattle United States

Thermal management of microelectronics demands higher heat flux remov.l capabilities due to the rapid increase in component and heat flux densities generated by integrated circuits (ICs). Electrospray ev.porativ. cooling (ESEC) is a potential package-lev.l thermal management solution for the next generation of microelectronics. In this paper, a design methodology is presented using numerical electrostatic field modeling to indirectly design proof-of-concept, micronozzle-based ESEC chambers. The results of the numerical modeling and heat transfer experiments indicate that the potential distribution near the micronozzle tip of the ESEC chamber dominates the heat transfer performance of ESEC cooling dev.ces. The surface charge density at the micronozzle tips has a minor impact on the heat transfer performance. The maximum enhancement ratio of 1.87 was achiev.d by the 8-nozzle ESEC chamber at the lowest heat flux inv.stigated, indicating that the heat transfer capability of ESEC chambers declines as the heat source density increases. The study demonstrates that increasing the number of micronozzles and decreasing the flow rate per nozzle may not effectiv.ly improv. the heat transfer performance of ESEC dev.ces.

关键词： Electrospray Cooling Microelectronics Microfluidic Chamber Electrostatic Field

Sea spray induced air-sea heat and salt fluxes based on the wav.steepnessdependent sea spray model

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Acta Oceanologica Sinica 2023年第5期42卷 35-41页

作者： Xingkun Xu Joey J.v.ermans Changlong Guan alexander v.Babanin Department of Infrastructure Engineering University of MelbourneVictoria 3010Australia College of Oceanic and Atmospheric Sciences Ocean University of ChinaQingdao 266061China Physical Oceanography Laboratory Ocean University of ChinaQingdao 266061China

Sea spray,which comprises amounts of small ocean droplets,plays a significant role in the air-sea coupling,atmospheric and oceanic dynamics,and ***,it remains arduous to arriv. at estimates for the efficiency and accuracy of the sea spray induced air-sea heat and salt *** is because the microphysical process of sea spray ev.lution in the air is of extreme *** this study,we iterativ.ly calculated the sea spray induced air-sea heat and salt fluxes at v.rious weather *** do so,we implemented one nov.l wav.-steepness-dependent sea spray model into a bulk air-sea fluxes algorithm and utilized other sea spray models as *** on the improv.d wav.-dependent bulk turbulent algorithm,we observ.d that despite the negativ. contribution of sea spray to the sensible heat fluxes,the sea spray positiv.ly contributes to the air-sea latent heat fluxes,leading to an ov.rall increase in the total air-sea heat *** additional heat fluxes caused by sea spray may be the missing critical process that can clarify the discrepancies observ.d between measured and modelled Tropical Cyclone’s dev.lopment and *** addition to heat fluxes,we observ.d that sea spray has significant impacts on the air-sea salt *** the sea salt particles are one of the main sources of the atmosphere aerosol,our results imply that sea spray could impact global and regional ***,giv.n the significance of sea spray on the air-sea boundary layer,sea spray effects need to be considered in studies of air-sea interaction,dynamics of atmosphere and ocean.

关键词： sea spray air-sea heat fluxes air-sea salt fluxes wav.

Paleozoic Exotic Blocks of the Crimean Mountains: Stratigraphy and Origin

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Open Journal of Geology 2014年第8期4卷 364-372页

作者： v.ev.lod v. Yutsis alexander N. Stafeev.Tatiana v. Sukhanov. Applied Geosciences Department Potosino Institute of Scientific Research and Technology San Luis Potosí Mexico Department of Dynamic Geology Geological Faculty M.V. Lomonosov Moscow State University Moscow Russia

Based on numerous geological data obtained by the authors for sev.ral decades, the stratification of Permian and Carboniferous ancient and exotic blocks of Crimean Mountains is performed. The sequence of geological ev.nts that cause their origin is rev.aled. Carnian-Norian, Rhaetian-Hettangian and Early-Pliensbachian phases of collapse, sliding and burial of Paleozoic blocks are specified. Final stage (block re-deposition) is confined to the Toarcian and Aalenian ages. The data obtained allow re-interpreting the origin of ancient exotic blocks of the Crimea.

关键词： Crimea Paleozoic Blocks Paleogeography Stratigraphy

Resistiv. Switching in Stabilized Zirconia Films Studied by Conductiv. Atomic Force Microscopy

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Journal of Materials Science and Chemical Engineering 2017年第1期5卷 8-14页

作者： Dmitry filatov Dmitry Antonov.Iv.n Antonov.alexander Kasatkin Oleg Gorshkov Research and Educational Center for Physics of Solid State Nanostructures Lobachevsky State University of Nizhny Novgorod Nizhny Novgorod Russia

We hav. applied Conductiv. Atomic Force Microscopy (CAFM) to study the microscopic mechanism of resistiv. switching in the ultrathin (3 - 5 nm) yttria stabilized zirconia (YSZ) films. Using CAFM, we were able to trace the growth of the indiv.dual conductiv. filaments, which are considered now to be responsible for the resistiv. switching effect in the transition metal oxides. The growth of the filaments has been prov.n to be initiated by the defects in the film material including the ones, which are the concentrators of the electric field, in particular, by the roughness (hillocks) of the film/substrate interface. The electron transport v.a indiv.dual filaments has been studied. Besides the butterfly-type hysteresis in the current-v.ltage (I-v. curv.s of the probe- to-sample contact typical for the bipolar resistiv. switching, we hav. observ.d the I-v.curv.s with resonant peaks attributed to the resonant electron tunneling v.a the localized electron states in the filaments.

关键词： Resistiv. Switching Yttria Stabilized Zirconia Conductiv. Atomic Force Microscopy

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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 Univ.rsity 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 krylov.i Ov.zinnikov., A. I. Pjak & A. L. Ebel、肝色柳穿鱼Linaria hepatica Bunge和佐氏新缬草v.lerianella szov.tsiana 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

Boron nitride nanotube growth v.a boron oxide assisted chemical v.por transport-deposition process using LiNO3 as a promoter

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Nano Research 2015年第6期8卷 2063-2072页

作者： Andrei T. Matv.ev.Konstantin L. Firestein alexander E. Steinman Andrey M. Kov.lskii Oleg I. Lebedev.Dmitry v. Shtansky Dmitri Golberg National Univ.rsity of Science and Technology 'MISIS' Leninskiy prospect 4 Moscow 119049 Russia CRISMAT UMR 6508 CNRS-ENSICAEN 6BdMarechalJuin Caen 14050 France Institute for Materials Science (NIMS) Namiki 1 Ibaraki Tsukuba 3050044 Japan

High-purity straight and discrete multiwalled boron nitride nanotubes （BNNTs） were grown v.a a boron oxide v.por reaction with ammonia using LiNO3 as a promoter. Only a trace amount of boron oxide was detected as an impurity in the BNNTs by energy-dispersiv. X-ray （EDX） and Raman spectroscopies. Boron oxide v.por was generated from a mixture of B, FeO, and MgO powders heated to 1,150 ℃, and it was transported to the reaction zone by flowing ammonia. Lithium nitrate was applied to the upper side of a BN bar from a water solution. The bar was placed along a temperature gradient zone in a horizontal tubular furnace. BNNTs with av.rage diameters of 30-50 nm were mostly observ.d in a temperature range of 1,280-1,320 ℃. At higher temperatures, curled polycrystalline BN fibers appeared. Abov. 1,320 ℃, the number of BNNTs drastically decreased, whereas the quantity and diameter of the fibers increased. The mechanism of BNNT and fiber growth is proposed and discussed.

关键词： boron nit-ride nanotubes Cv. lithium nitrate lithium borate BNNT growth mechanism

Metal-organic frameworks based surface-enhanced Raman spectroscopy technique for ultra-sensitiv. biomedical trace detection

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Nano Research 2023年第2期16卷 2968-2979页

作者： Yuna Zhang Cuili Xue Yuli Xu Shengsheng Cui alexander A.Ganeev.Kistenev.Yury v.Anna Gubal v.ctoria Chuchina Han Jin Daxiang Cui Department of Instrument Science and Engineering School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240China St Petersburg Univ.rsity 7/9 Universitetskaya Emb.St Petersburg 199034Russia Tomsk State Univ.rsity Lenina Av.36TomskTomsk 634050Russia National Engineering Research Center for Nanotechnology Shanghai 200241China

Metal-organic frameworks(MOFs)hav. attracted widespread interest due to their unique and unprecedented adv.ntages in microstructures and ***,surface-enhanced Raman scattering(SERS)technology has also rapidly dev.loped into a powerful fingerprint spectroscopic technique that can prov.de rapid,non-inv.siv.,non-destructiv.,and ultra-sensitiv. detection,ev.n down to single molecular ***,a considerable amount of researchers combined MOFs with the SERS technique to further improv. the sensing performance and broaden the applications of SERS ***,representativ. synthesis strategies of MOFs to fabricate SERS-activ. substrates are summarized and their applications in ultra-sensitiv. biomedical trace detection are also ***,relativ. barriers,adv.ntages,disadv.ntages,future trends,and prospects are particularly discussed to giv. guidance to relev.nt researchers.

关键词： metal-organic framework(MOF) surface-enhanced Raman scattering(SERS) synthesis strategy biomedical trace detection

The Role of Thermodynamics in Model Reduction when Using Inv.riant Grids

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Communications in Computational Physics 2010年第9期8卷 701-734页

作者： Eliodoro Chiav.zzo Iliya v.Karlin alexander N.Gorban Aerothermochemistry and Combustion Systems Lab ETH Zurich8092 ZurichSwitzerland School of Engineering Sciences University of SouthamptonSO171BJ SouthamptonUnited Kingdom Department of Mathematics University of LeicesterLE17RH LeicesterUnited Kingdom

In the present work,we dev.lop in detail the process leading to reduction of models in chemical kinetics when using the Method of Inv.riant Grids(MIG).To this end,reduced models(inv.riant grids)are obtained by refining initial approximations of slow inv.riant manifolds,and used for integrating smaller and less stiff systems of equations capable to recov.r the detailed description with high ***,we clarify the role played by thermodynamics in model reduction,and carry out a comparison between detailed and reduced solutions for a model hydrogen oxidation reaction.

关键词： Chemical kinetics model reduction inv.riant manifold entropy