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Large-scale error-tolerant programmable interferometer fabricated by femtosecond laser writing

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Photonics Research 2024年第3期12卷 I0028-I0040页

作者： ILYA KONDRATYEV VERONIKA ivanova SUREN FLDZHYAN ARTEm ARGENCHIEV NIKITA KOSTYUCHENKO SERGEY ZHURAVITSKII NIKOLAY SKRYABIN IVAN DYAKONOV mIKHAIL SAYGIN STANISLAV STRAUPE ALEXANDER KORNEEV SERGEI KULIK Quantum Technology Centre and Faculty of Physics M.V.Lomonosov Moscow State UniversityMoscow 119991Russia Russian Quantum Center Moscow 121205Russia Laboratory of Quantum Engineering of Light South Ural State UniversityChelyabinsk 454080Russia

We introduce a programmable eight-port interferometer with the recently proposed error-tolerant architecture capable of performing a broad class of *** interferometer has been fabricated with femtosecond laser writing,and it is the largest programmable interferometer of this kind to *** have demonstrated its advantageous error tolerance by showing an operation in a broad wavelength range from 920 to 980 nm,which is particularly relevant for quantum photonics due to efficient photon sources existing in this wavelength *** work highlights the importance of developing novel architectures of programmable photonics for information processing.

关键词： interferometer laser femtosecond

modelling of microbial enhanced oil recovery application using anaerobic gas-producing bacteria

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Petroleum Science 2014年第2期11卷 272-278页

作者： Pavel Spirov Yanina ivanova Svetlana Rudyk Department of Petroleum and Chemical Engineering Sultan Qaboos University Chemistry & Environment Mrsk Olie og Gas A/S Kanalen 2 DK-6700 Esbjerg

microbial enhanced oil recovery （mEOR） methods apply injection of bacteria to depleted oil reservoirs to produce oil, which had remained unrecovered after the conventional methods of production. The ability ofthermophilic anaerobic bacteria to produce gas as the main mechanism in potential mEOR in high salinities of 70-100 g/L was investigated in this study. maximum gas production of up to 350 mL per 700 mL of salty solution was produced at a salinity of 90 g/L stably during 2-4 days of experiment. The experimental results were upscaled to the Snorre Oilfield, Norway, and simulated using ECLIPSE software for 27 months. The best scenarios showed that the increase in oil recovery on average was at 21% and 17.8% respectively. This study demonstrated that anaerobic bacteria used in biogas plants could be an attractive candidate for mEOR implementation due to their ability to withstand high temperature and salinity, and produce gas in large volumes.

关键词： microbiological enhanced oil recovery CO2 injection ECLIPSE simulation

The impact of the environmental factors on the photosynthetic activity of common pine (Pinus sylvestris) in spring and in autumn in the region of Eastern Siberia

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Journal of Forestry Research 2018年第6期29卷 1465-1473页

作者： N.E.Korotaeva m.V.ivanova G.G.Suvorova G.B.Borovskii Siberian Institute of Plant Physiology and Biochemistry Siberian Branch of Russian Academy of Sciences

The taiga coniferous forests of the Siberian region are the main carbon sinks in the forest ***, the size of the carbon accumulation is determined by the photosynthetic productivity, which is strongly influenced by environmental factors. As a result,an assessment of the relationship between environmental factors and photosynthetic productivity makes it possible to calculate and even predict carbon sinks in coniferous forests at the regional level. However, at various stages of the vegetative period, the force of the connection between environmental conditions and the productivity of photosynthesis may change. In this research, correlations between the photosynthetic activity of Scots pine(Pinus sylvestris L.) with the environmental conditions were compared in spring and in autumn. In spring, close positive correlation of the maximum daily net photosynthesis was identified with only one environmental factor. For different years, correlations were for soil temperature(rs= 0.655,p = 0.00315) or available soil water supply(rs= 0.892,p = 0.0068). In autumn within different years, significant correlation was shown with two(temperature of air and soil; rs= 0.789 and 0.896, p = 0.00045 and 0.000006,respectively) and four factors: temperature of air(rs=0.749, p = 0.00129) and soil(rs= 0.84, p = 0.00000),available soil water supply(rs= 0.846, p = 0.00013) and irradiance(rs= 0.826, p = 0.000001). Photosynthetic activity has a weaker connection with changes in environmental factors in the spring, as compared to *** is explained by the multidirectional influence of environmental conditions on photosynthesis in this period and by the necessity of earlier photosynthesis onset, despite the unfavorable conditions. This data may be useful for predicting the flow of carbon in dependence on environmental factors in this region in spring and in autumn.

关键词： Pinus sylvestris L. Eastern Siberia Correlations Photosynthetic productivity Seasonal changes in environment

Synthesis, Spectral Properties, Antibacterial and Antitumor Activity of Salinomycin Complexes with the Transition metal Ions Co（ll）, Ni（ll）, Cu（ll） and Zn（ll）

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Journal of Chemistry and Chemical Engineering 2012年第6期6卷 551-562页

作者： juliana ivanova Ivayla N. Pantcheva Rumyana Zhorova Georgi momekov Svetlana Simova Radostina Stoyanova Ekaterina Zhecheva Simona ivanova mariana mitewa .Faculty of medicine Sofia University Sofia 1407 Bulgaria Department of Analytical Chemistry Faculty of Chemistry Sofia University Sofia 1164 Bulgaria Department of Pharmacology Pharmacotherapy and Toxicology Faculty of Pharmacy Medical University-Sofia Sofia 1000 Bulgaria Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences Sofia 1113 Bulgaria Institute of General and Inorganic Chemistry Bulgarian Academy of Sciences Sofia 1113 Bulgaria

SalNa （sodium salinomycin） reacts with divalent transition metal ions of Co（II）, Ni（II）, Cu（II） and Zn（II） to produce novel compounds characterized by various spectroscopic methods. The interaction of metal （II） ions with SalNa results in the formation of mononuclear complexes of a general composition of [m（Sal）2·（H2O）2] nH2O （n = 0 or 2） where the divalent cations replace Na~ ions from the cavity of initial compound. The new compounds （disalinomycinates） possess an enhanced antibacterial activity against Gram-positive microorganisms as compared to both SalNa and SalH （salinomycinic acid）, respectively. The metal （II） complexes manifest strong concentration dependent cytotoxic effect in experiments using human leukemia cell lines. The complexes of Co0I） and Cu（lI） proved to exert superior activity as compared to the Ni（II） and Zn（II） analogues and are much more cytotoxic than SalNa and SalH. Further studies should be conducted to determine the therapeutic indexes of the new compounds.

关键词： Salinomycin divalent metal complexes antibacterial properties antitumor activity.

Simulations of ALT-like explosive magnetic devices for ramp compression of materials by magnetically imploded liners

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matter and Radiation at Extremes 2020年第4期5卷 16-22页

作者： A.m.Buyko G.G.ivanova I.V.morozova FSUE Russian Federal Nuclear Center–All-Russian Research Institute of Experimental Physics(RFNC-VNIIEF)SarovNizhny Novgorod RegionRussia

Revised simulations of ALT-like devices are *** results from these simulations closely match those from experiments and demonstrate the capabilities of the devices as applied to ramp compression of metals to pressures of 20 mbar by imploding liners driven by∼10 mG azimuthal magnetic fields(with currents up to 55 mA).These results can be applied to the design of experiments on isentropic compression of materials.

关键词： materials. magnetic Simulation

Lunar project ILOm:application of the analytical theory of Lunar physical libration for the simulation of star observations

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Science China(Physics,mechanics & Astronomy) 2012年第5期55卷 888-891页

作者： PETROVA Nataliya GUSEV Alexander PING JinSong ivanova Tamara HANADA Hideo KAWANO Nobuyuki SU XiaoLi Department of Astronomy Kazan State UniversityKazan 420008Russia Department of Computer Sciences Kazan State Power Engineering UniversityKazan 420008Russia National Astronomical Observatory Chinese Academy of SciencesBeijing 100020China Institute of Applied Astronomy Sankt-Petersburg 195251Russia National Astronomical Observatory of Japan NICTMizusawa 023-0861Japan Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China

This study briefly describes the targets and problems of the future Japanese project In situ Lunar Orientation measurement(ILOm),which is planned for the year *** of the important parts of the project is to place a small optical telescope on the Lunar surface with the purpose to detect the Lunar physical libration with unprecedented accuracy 0.001 *** the present stage of research the computer simulation of future observations is going on,aiming to determine the moments of transition of a star through the first meridian and the polar distance of the *** of the moon is being calculated under the analytical theory developed in the frame of a theme of the grant.A list of stars brighter than 12 m,whose coordinates are close to the Lunar precession pole motion,was constructed on the basis of several star *** average,for each moment of observation in the field of view of the telescope(1°) there are approximately 20-25 *** of simulated stellar tracks observable from the Lunar surface(in a polar zone) reveal the significant difference from daily parallels of stars in comparison with the *** one Lunar "day" equal 237 terrestrial days,a star moves on a ***,depending on a longitude of a star,these spirals can be untwisted or *** the latter case a star can describe a loop in the sky of the moon during the period of *** an unusual astrometric phenomenon combined with the slow rotation of the moon is compared with the Earth and the fast precession motion of the Lunar pole(in comparison with the precession motion of a terrestrial pole).

关键词： ILOm Lunar physical libration telescope

Fuel characteristics, loads and consumption in Scots pine forests of central Siberia

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Journal of Forestry Research 2020年第6期31卷 2507-2524页

作者： Galina A.ivanova Elena A.Kukavskaya Valery A.Ivanov Susan G.Conard Douglas J.mcRae V.N.sukachev institute of forest sb ras-separate subdivision of the federal research center“krasnoyarsk science center of the siberian branch of the russian academy of sciences” krasnoyarskrussia 660036 m.F.reshetnev siberian state university of science and technology krasnoyarskrussia 660049 Emeritus scientist rocky mountain research stationu.s.forest servicemissoulamt 59807usa George mason university fairfaxvausa Canadian forest service natural resources canada1219 queen street eastsault st5.marieon p6a 2e5canada

Forest fuel investigations in central and southern Siberian taiga of Scots pine forest stands dominated by lichen and feather moss ground vegetation cover revealed that total aboveground biomass varied from 13.1 to 21.0 kg/m *** biomass was higher in plots in the southern taiga,while ground fuel loads were higher in the central *** developed equations for fuel biomass(both aerial and ground)that could be applicable to similar pine forest sites of Central *** loading variability found among plots is related to the impact and recovery time since the last wildfi re and the mosaic distribution of living *** consumption due to surface fi res of low to high-intensities ranged from 0.95 to 3.08 kg/m 2,that is,18–74%from prefi re *** total amount of fuels available to burn in case of fi re was up to 4.5–6.5 kg/m *** content of fuels(litter,lichen,feather moss)was related to weather conditions characterized by the Russian Fire Danger Index(PV-1)and FWI code of the Canadian Forest Fire Weather Index *** data obtained provide a strong foundation for understanding and modeling fi re behavior,emissions,and fi re eff ects on ecosystem processes and carbon stocks and could be used to improve existing global and regional models that incorporate biomass and fuel characteristics.

关键词： Pinus sylvestris Tree biomass Surface and ground fuel loads Fuel moisture Fuel consumption

Extended Corey-Chaykovsky reactions:transformation of 2-hydroxychalcones to benzannulated 2,8-dioxabicyclo[3.2.1]octanes and 2,3-dihydrobenzofurans

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Organic Chemistry Frontiers 2022年第3期9卷 737-744页

作者： Alexander A.Fadeev Anton S.makarov Olga A.ivanova maxim G.Uchuskin Igor V.Trushkov Department of Chemistry Perm State UniversityBukireva 15Perm 614990Russian Federation Department of Chemistry M.V.Lomonosov Moscow State UniversityLeninskie Gory 1-3Moscow 119991Russian Federation N.D.Zelinsky Institute of Organic Chemistry Leninsky pr.47Moscow 119334Russian Federation. D.Rogachev National medical Research Center of Pediatric Hematology Oncology and ImmunologySamory Mashela 1Moscow 117997Russian Federation

We report the divergent synthesis of benzannulated 2,8-dioxabicyclo[3.2.1]octanes and 2,3-dihydrobenzofurans using the concept of extended Corey-Chaykovsky *** this concept,2-hydroxychalcones were treated with the Corey ylide providing highly reactive donor-acceptor cyclopropanes that were introduced in a one pot manner for further transformations.

关键词： octane donor

Engineering Geological map of the Sakha(Yakutia) Republic

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Research in Cold and Arid Regions 2014年第5期6卷 484-493页

作者： Vladimir B.Spektor Yaroslav I.Torgovkin Alena A.Shestakova Valentin V.Spektor Lena D.ivanova Boris m.Kozmin melnikov Permafrost Institute Siberian Branch of the Russian Academy of Sciences Diamond and Precious metal Geology Institute Siberian Branch of the Russian Academy of Sciences

The Engineering Geological map of the Sakha（Yakutia） Republic covers about 3 million kilometers which is one-fifth of the territory of *** map displays ground and geocryological conditions and active *** intensity,schemes of zoning by factors of engineering geological conditions,and the general scheme of engineering geological zoning of the Sakha（Yakutia） Republic or the SR（Y）,are shown on the inset *** map is required to provide information for planning,construction and exploitation of engineering structures in the SR（Y）.A distinguishing feature of the map is the indication of almost blanket distribution of the frozen ground *** of the frozen ground class are separated by lithology,while ground varieties are separated by *** and ultra-fresh suprapermafrost water is predominant within the *** compiled map indicates parts of the Arctic-Asian and Baikalo-Stanovoi planetary seismic belts that make engineering geological conditions more complicated.

关键词： engineering geological map ground types frozen ground exogenous processes Sakha (Yakutia) Republic