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Composition of the Diamond Indicator Minerals on the Mitchell Chart――Criteria of CLIPPIR Diamonds in Kimberlites and Conditions of their Mantle Crystallization

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Acta Geologica sinica(English Edition) 2021年第S1期95卷 121-124页

作者： Vladimir N.ZINCHENKO Alexandr s.ivanov Igor V.AsHCHEPKOV CATOCA Mining society СatocaAngola ALROsA Ltd. MirnyRussia V.s.sobolev Institute of Geology and Mineralogy sB RAs NovosibirskRussia

In the last decade,researchers have been particularly interested in IIa CLIPPIR type diamonds,which differ in composition and physical characteristics from diamonds of peridotite related"P"and eclogite related"E"***(Moore,2009)sought them as mantle kimberlite related megacrysts,but light C isotopy and chemical features needs special explanation.

关键词： CLIPPIR diamonds kimberlite mantle pyrope clinopiroxene chromite ilmenite

Micro-sonic sensor technology enables enhanced grass height measurement by a Rising Plate Meter

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Information Processing in Agriculture 2019年第2期6卷 279-284页

作者： D.Mcsweeney N.E.Coughlan R.N.Cuthbert P.Halton s.ivanov Teagasc Animal&Grassland Research and Innovation CentreMooreparkFermoyCo.CorkIreland Telecommunications software&systems Group Waterford Institute of TechnologyWaterfordIreland Institute for Global Food security School of Biological SciencesQueen’s University BelfastMedical Biology Centre97 Lisburn RoadBelfast BT97BLNorthern IrelandUnited Kingdom True North Technologies Unit 14Shannon Business CentreShannonCounty ClareIreland

Globally,the Rising Plate Meter(RPM)is a device used to measure compressed sward height,to enable estimation of herbage *** improved farm management practices aided by a variety of technological advances,the standard design of a RPM has remained relatively ***,however,a RPM utilising a micro-sonic sensor,with digital data capture capability via a Bluetooth communications link to a smart device application,has been ***,we assess the comparable ability of both a standard cumulative ratchet counter RPM and the micro-sonic sensor RPM,to accurately and precisely measure fixed ***,as correct allocation of grazing area requires accurate geolocation positioning,we assess the associated GPs *** micro-sonic sensor RPM was significantly more accurate for height capture than the cumulative ratchet counter ***,across all heights,the cumulative ratchet counter RPM underestimated height by 7.68±0.06mm(mean±sE).Alternatively,the micro-sonic sensor RPM overestimated height by 0.18±0.08 *** relation to a practical applications,these discrepancies can result in an under-and overestimation of dry matter yield by 13.71%and 0.32%kilograms per hectare,*** performance of the on-board GPs did not significantly differ from that of a tertiary ***,the wireless technology,integrated mapping,and decision support tools offered by the innovative micro-sonic sensor RPM provides for a highly efficacious grassland management tool.

关键词： Decision support systems Dry matter yield Grassland Rising plate meter Precision agriculture Wireless sensor network

Manufacturer encroachment and carbon reduction decisions considering cap-and-trade policy and retailer investment

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Frontiers of Engineering Management 2024年第2期11卷 326-344页

作者： Pengpeng YUAN Jiasen sUN Dmitry ivanov Business school and Dongwu Think Tank Soochow UniversitySuzhou 235031China Berlin school of Economics and Law Berlin 999035Germany

Low-carbon regulation and market competition present new opportunities and challenges for supply chain firms,emphasizing the significance of carbon reduction and channel encroachment in enhancing *** study formulates various game models to evaluate manufacturers’encroachment strategies(with or without encroachment)under different conditions of low-carbon investment by *** investigates the operational decisions and carbon abatement strategies of firms under various *** findings reveal that encroachment elevates unit abatement levels but decreases wholesale prices and retailer profits when unit encroachment costs are below certain *** contrast,the manufacturer consistently benefits from channel ***-initiated low-carbon investments can motivate manufacturers to reduce emissions.A lower carbon price potentially offers financial advantages to retailer engaging in such ***,the likelihood of reduced environmental damage postchannel encroachment,compared to preprofessional encroachment,increases when the retailer invests in low-carbon *** retailer’s profit is inversely related to the carbon price,and a higher carbon price can strengthen the incentive effect of low-carbon investment on the manufacturer’s abatement endeavors.

关键词： carbon cap-and-trade channel encroachment emission reduction low-carbon investment

Development and testing of a high-power s-band klystron at BINP sB RAs

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Nuclear science and Techniques 2024年第7期35卷 58-67页

作者： A.Levichev A.Barnyakov s.samoylov D.Nikiforov V.ivanov M.Arsentyeva D.Chekmenev O.Pavlov I.Pivovarov Budker Institute of Nuclear Physics Lavrentyeva Av.11NovosibirskRussia630090 Novosibirsk state University Pirogova Str.2NovosibirskRussia630090

This paper details the development and testing of the first working prototype of the s-band high-power klystron,accomplished at the Budker Institute of Nuclear Physics,siberian Branch,Russian Academy of sciences(BINP sB RAs).Upon testing,the klystron demonstrated the following parameters:an operating frequency of 2856 MHz and a peak power output of 50 *** paper presents the klystron's design,its constituent units,and pertinent processing procedures,along with discussions on the measurement of its parameters.

关键词： Klystron Linear accelerator Electron beam

Radiative decays D*(s)→ D(s)γ in covariant confined quark model

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Chinese Physics C 2024年第2期48卷 45-56页

作者： C.T.Tran M.A.ivanov P.santorelli Q.C.Vo Department of Physics HCMC University of Technology and EducationVo Van Ngan 1700000 Ho Chi Minh CityVietnam Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear Research141980 DubnaRussia Dipartimento di Fisica"E.Pancini" Universitàdi Napoli Federico ⅡComplesso Universitario di Monte S.AngeloVia CintiaEdificio 680126 NapoliItaly Istituto Nazionale di Fisica Nucleare Sezione di Napoli80126 NapoliItaly University of science 700000 Ho Chi Minh CityVietnam

Radiative decays D((s))*→D((s))γare revisited in light of new experimental data from the BaBar and BEsⅢ*** radiative couplings gD*Dγencoding nonperturbative QCD effects are calculated in the framework of the covariant confined quark model developed by *** compare our results with other theoretical studies and experimental *** couplings(in GeV-1)|g(D*+D+γ)|=0.45(9)and|g(D*0D0γ)|=1.72(34)calculated in our model agree with the corresponding experimental data|g(D*+D+γ)|=0.47(7)and|g(D*0D0γ)|=1.77(16).The most interesting case is the decay Ds*→Dsγ,for which a recent prediction based on light-cone sum rules at next-to-leading order|gDs*Dsγ|=0.60(19)deviates from the first(and only to date)lattice QCD result|gDs*Dsγ|=0.11(2)at nearly3σ.Our calculation yields|gDs*Dsγ|=0.29(6),which falls somehow between the two mentioned results,although it is larger than those predicted in other studies using quark models or QCD sum rules.

关键词： covariant quark model radiative decay charmed meson

Expanded Porphyrin Exhibiting Off-Centered Out-of-Plane Coordination to Dysprosium

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CCs Chemistry 2024年第7期6卷 1731-1738页

作者： Dmitry I.Nazarov Jorge Labella Alexey V.Kuzmin Maxim A.Faraonov Evgenii N.ivanov salavat s.Khasanov Tomas Torres Mikhail K.Islyaikin Dmitri V.Konarev Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAs 142432 Chernogolovka Department of Organic Chemistry Universidad Autonoma de Madrid28049 Madrid Institute of solid-state Physics RAs 142432 Chernogolovka Research Institute of Macroheterocycles Ivanovo State University of Chemistry and Technology15300 Ivanovo G.A.Krestov Institute of solution Chemistry of the Russian Academy of sciences 153045 Ivanovo Institute for Advanced Research in Chemical sciences Universidad Autonoma de Madrid28049 Madrid IMDEA-Nanociencia 28049 Madrid

The complexation of high-spin lanthanides to porphyrinoids is a powerful strategy for the development of advanced molecular *** this context,the use of expanded porphyrinoids remains elusive since their coordination chemistry is challenging to ***,taking inspiration from on-surface chemistry,we explored the coordination of Dy^(3+)to a six-membered porphyrinoid,namely,the hemihexaphyrazine ***,we observed the selective formation of a mono-nuclear off-centered,out-of-plane H_(2)Hhp-Dy^(3+)complex when performing the complexation under reductive *** this reaction,the oxidation state of the macrocycle did not *** X-ray diffraction analysis,we found that the coordination number of Dy in this complex was *** macrocycle cocrystallized with decamethylcobaltocene(Cp_(2)^(*)Co)molecules,giving rise to a wellordered solid-state packing,governed byπ-π*** a result of this organization,a small magnetic coupling between the neighboring molecules was *** in all,this work provides key insights into the coordination of magnetically active metals with expanded porphyrinoids,thus motivating the development of advanced spintronic devices.

关键词： porphyrins dysprosium macrocycle coordination chemistry magnetism

Theory of adaptive mechanical drive

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Theoretical & Applied Mechanics Letters 2021年第4期11卷 219-223页

作者： K.s.ivanov Almaty University of Power Engineering and Telecommunication Almaty050013Kazakhstan

A kinematic chain with two degrees of freedom and one input can have definability of motion only if there is an additional constraint of forces and *** a chain is a mechanism that has the brand new property of force *** article presents a kinematic and force analysis of two-mobile adaptive mechanisms and describes the principle of definability of motion.

关键词： Two-mobile mechanism Definability of motion Force-speed constraint

Generalized Logan’s Problem for Entire Functions of Exponential Type and Optimal Argument in Jackson’s Inequality in L2（R3）

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Acta Mathematica sinica,English series 2018年第10期34卷 1563-1577页

作者： Valerii ivanov Alexey ivanov Department of Applied Mathematics and Computer science Tula State University

We study Jackson＇s inequality between the best approximation of a function f∈ L2（R^3） by entire functions of exponential spherical type and its generalized modulus of continuity. We prove Jackson＇s inequality with the exact constant and the optimal argument in the modulus of continuity. In particular, Jackson＇s inequality with the optimal parameters is obtained for classical modulus of continuity of order r and Thue-Morse modulus of continuity of order r∈ N. These results are based on the solution of the generalized Logan problem for entire functions of exponential type. For it we construct a new quadrature formulas for entire functions of exponential type.

关键词： Best approximation generalized modulus of continuity Jackson's inequality optimal argument Logan's problem quadrature formula

共沉淀纳米粉体制备Yb:scO透明陶瓷的微结构与光学性能（英文）

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无机材料学报 2024年

作者：叶君豪周真真胡辰王雁斌荆延秋李廷松程梓秋吴俊林 ivanov Maxim HRENIAK Dariusz 李江中国科学院上海硅酸盐研究所透明陶瓷研究中心中国科学院大学材料科学与光电工程中心塞尔维亚共和国国家研究所Vin?a核科学研究所光电转换卓越中心俄罗斯科学院乌拉尔分院电物理研究所波兰科学院低温与结构研究所

sc2O3作为固体激光增益材料的基质，具有热导率高、与激活离子匹配性好等优点，在高功率固体激光应用中有着广阔的应用前景。目前，Yb掺杂的sc2O3陶瓷可以在很高的烧结温度下合成，但陶瓷的光学质量和烧结温度还有待进一步优化。本文采... 详细信息

sc2O3作为固体激光增益材料的基质，具有热导率高、与激活离子匹配性好等优点，在高功率固体激光应用中有着广阔的应用前景。目前，Yb掺杂的sc2O3陶瓷可以在很高的烧结温度下合成，但陶瓷的光学质量和烧结温度还有待进一步优化。本文采用共沉淀法制备了5%Yb:sc2O3（掺杂量为质量分数）纳米粉体，并采用真空预烧结和热等静压（Hot Isostatic Pressing， HIP）后处理制备了5%Yb:sc2O3透明陶瓷。从热重分析、XRD以及扫描电镜的结果，证明了碳酸氢铵共沉淀法能得到分散性好、平均晶粒尺寸29 nm的立方相Yb:sc2O3纳米粉体。详细研究了真空预烧温度（1500～1700 ℃）对Yb:sc2O3陶瓷的致密化过程、微观结构变化及光学透过率的影响。结果表明，所有样品均具有均匀的微观结构，且随着烧结温度的升高，样品的平均晶粒尺寸增大。值得注意的是，1550 ℃预烧的Yb:sc2O3陶瓷经HIP后处理后，在1100 nm处的最佳直线透过率达到78.1%（理论值为80%）。同时，还评估了Yb:sc2O3陶瓷的光谱性能。5% Yb:sc2O3陶瓷的最小粒子数反转参数β和发光衰减时间分别为0.041和0.49 ms。通过本工作，Yb:sc2O3的光学质量得到了优化，并将最佳真空烧结温度控制在较低的温度（1550 ℃）。综上所述，采用共沉淀法成功制备了Yb:sc2O3纳米粉体，通过1550 ℃真空预烧结和HIP后处理制备出了光学质量良好的透明陶瓷。

关键词：纳米粉体 Yb:sc O 透明陶瓷热等静压烧结光学性能