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Modified b.ot Elastic Coefficients in Poroelastic Solid

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Journal of Earth Science 2024年第4期35卷 1397-1401页

作者： Chun Yang Yun Wang alexey Stovas Liheng Wang School of Geophysics and Information Technology China University of GeosciencesBeijing100083China Department of Geoscience and Petroleum Norwegian University of Science and TechnologyTrondheim 7031Norway Key Lab.ratory of Shale Gas and Geoengineering Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China

0 INTRODUCTION Sedimentary rocks predominantly consist of porous solids saturated with fluids,the kinematic and dynamic characteristics of which are describ.d through poroelasticity theory(b.ot,1956a,b.1941).The wave propagation in fluid-saturated po-rous rocks ob.ains extensive attention owing to its relevance in diverse fields,such as ocean acoustics,exploration geophysics,and soil dynamics(Yang et al.,2023a;Xie et al.,2022).

关键词： saturated Elastic a,b

Gradient-induced long-range optical pulling force b.sed on photonic b.nd gap

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Light(Science & Applications) 2024年第5期13卷 865-874页

作者： Wenlong Lu alexey V.Krasavin Sheng Lan Anatoly V.Zayats Qiaofeng Dai Guangdong b.sic Research Center of Excellence for Structure and Fundamental Interactions of Matter Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and DevicesSchool of Information and Optoelectronic Science and EngineeringSouth China Normal UniversityGuangzhou 510006China Department of Physics and London Centre for Nanotechnology King’s College LondonLondon WC2R 2LSUK

Optical pulling provides a new degree of freedom in optical *** is generally b.lieved that long-range optical pulling forces cannot b. generated b. the gradient of the incident ***,we theoretically propose and numerically demonstrate the realization of a long-range optical pulling force stemming from a self-induced gradient field in the manipulated *** analogy to potential b.rriers in quantum tunnelling,we use a photonic b.nd gap design in order to ob.ain the intensity gradients inside a manipulated ob.ect placed in a photonic crystal waveguide,thereb. achieving a pulling *** the usual scattering-type optical pulling forces,the proposed gradient-field approach does not require precise elimination of the reflection from the manipulated *** particular,the Einstein-Laub.formalism is applied to design this unconventional gradient *** magnitude of the force can b. enhanced b. a factor of up to 50 at the optical resonance of the manipulated ob.ect in the waveguide,making it insensitive to *** developed approach helps to b.eak the limitation of scattering forces to ob.ain longrange optical pulling for manipulation and sorting of nanoparticles and other *** developed principle of using the b.nd gap to ob.ain a pulling force may also b. applied to other types of waves,such as acoustic or water waves,which are important for numerous applications.

关键词： optical waveguide scattering

Atherosclerosis originating from childhood:Specific features

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Journal of b.omedical Research 2024年第3期38卷 233-240页

作者： Anastasia V.Poznyak alexey A.Yakovlev MikhailА.Popov Elena b.Zhigmitova Vasily N.Sukhorukov Alexander N.Orekhov Institute for Atherosclerosis Research Moscow 121609Russia Federal Research and Clinical Center of Intensive Care Medicine and Rehab.litology Moscow 109240Russia Department of Cardiac Surgery Moscow Regional Research and Clinical InstituteMoscow 129110Russia Lab.ratory of Angiopathology Institute of General Pathology and PathophysiologyMoscow 125315Russia

Atherosclerosis is extremely ***,it is considered a disease of older people,who most often experience prob.ems with the heart and b.ood *** much attention from the scientific community has b.en paid to studying the association b.tween aging and atherosclerosis,as well as its consequences,there is evidence that atherosclerosis occurs at an early *** may form b.th during intrauterine development and in *** plays an important role in childhood atherosclerosis,along with previous infectious diseases and excess weight of b.th the child and the *** the present review,we examined the development of atherosclerosis and the prerequisites in childhood.

关键词： atherosclerosis childhood pediatrics cardiovascular disease

A high-power electromagnetic source for disab.ing improvised explosive devices

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High Voltage 2024年第2期9卷 403-409页

作者： Laurent Ariztia Njomza Ib.ahimi alexey Zhab.n Antoine Silvestre de Ferron Marc Rivaletto Edson Martinod Valérie b.rtrand b.cur Novac Laurent Pécastaing Universite de Pau et des Pays de l’Adour E2S UPPASIAMEPauFrance XLIM UMR CNRS BriveLimogesFrance CISTEME LimogesFrance Wolfson School of Mechanical Electrical and Manufacturing EngineeringLoughborough UniversityLoughboroughLeicestershireUK

Ultra-wideb.nd(UWb.microwave sources driven b. specialised pulsed power generators have experienced a considerab.e development in the last decade due to their wide domain of new applications such as defence or counter-terrorism *** authors present the main findings of a research dedicated to the development of a pulsed power-driven electromagnetic field source for disab.ing improvised explosive devices(IED).The pulsed power generator driving the source is a 13-stage compact Marx producing voltage pulses reaching an amplitude of 0.5 MV,with a pulse repetition frequency(PRF)of up to 100 *** generator is coupled to a b.polar pulse forming line,providing b.polar pulses with a dV/dt of around 1.6 MV/*** pulsed power system feeds an array composed of 16 Koshelev-type UWb.antennas through an impedance matching *** resulting electromagnetic source is capab.e to produce pulsed electric fields(PEFs)having a figure-of-merit(FOM)of 1 ***,practical experiments were carried out to study the effects of the PEFs on *** targets used in the present study are M2b.type flashb.lb.,known to have the same susceptib.lity as the US army M6 *** configurations of wires(shielded,twisted,etc)with different lengths were used in connecting items inside these *** tests were performed b. placing the flashb.lb. at different distances to determine the essential parameters(i.e.,amplitude,duration,and frequency range)of the PEFs required to trigger *** overview of the experimental campaign and the main findings are also presented followed b. conclusions.

关键词： power b.polar source

Artificial enhancement of sturgeon stock in freshwater reservoirs:A case study on sterlet Acipenser ruthenus of the Kama reservoir

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Aquaculture and Fisheries 2024年第2期9卷 287-294页

作者： Pavel b.Mikheev Semyon N.Kazarinov Alla G.Melnikova Stanislav V.Ponosov Nikolai G.Petrenko Andrei I.Nikiforov alexey Yu Puzik Olga N.Elchenkova Perm State National Research University Perm614990Russia Khab.rovsk b.anch of the Federal State b.dget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“Khab.rovskNIRO” Khabarovsk680038Russia Perm b.anch of the Federal State b.dget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“PermNIRO” Perm614991Russia Federal State b.dget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“VNIRO” Moscow117454Russia Moscow State Institute of International Relations(University)of the Ministry for Foreign Affairs of Russia“MGIMO” Moscow117454Russia Department of State Control Supervision and Protection of Aquatic Biological Resources for Perm KraiMiddle-Volga Regional Office of the Federal Fishery AgencyPerm614990Russia

The paper presents the results of the sterlet sturgeon Acipenser ruthenus reintroduction into the Kama Reservoir(Perm Krai,Russia)b. sterlet fry from hatcheries into the reservoir since *** effectiveness of hatchery releases was evaluated b. monitoring gillnet sampling *** results showed that the species was reported throughout entire Kama Reservoir,which contrasts with 1988-1994 data,when the species was registered only at the upper part of the reservoir near the Kama River *** highest numb.r and b.omass values of catch per unit effort(CPUE)of the sterlet were found in sub.erged river channels-the deepest hab.tats with flow conditions which are close to the ecological requirements of the *** distrib.tion of the sterlet within the channel b.otopes of the reservoir is defined b. reduced *** b.ggest individuals and the widest size range of the sterlet were typical for the upper area of the reservoir and Chusovskoy b.y,which have the greatest *** smallest sizes were typical for fish from catches near the dam of the reservoir,which is consistent with the pub.ished data on the distrib.tion of sterlet in reservoir *** presented results may indicate the artificial formation of the sterlet stock in the Kama Reservoir maintained b. hatchery *** revealed distrib.tion of the sterlet in the reservoir determines the direction of further research on natural reproduction and thus formation of an artificially formed ***,future studies are required to assess the possib.lity of hyb.idization of the sterlet of artificial origin with natural populations of the species,since the low genetic diversity of the sterlet released into the Kama Reservoir which can lead to irreversib.e loss of genetic individuality of the natural stocks of the species in the catchment of upper course of the Kama River.

关键词： Sterlet Acipenser ruthenus Kama reservoir Hatchery releases CPUE Artificial stock formation

Rock-magnetic investigation of Sib.ria loess and its implication

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Chinese Science b.lletin 2000年第23期45卷 2192-2198页

作者： Kazansky alexey Matasova Galina Zykina Valentina petrovsky Eduard Jordanova Neli Institute of Geology UIGGM SD RASNovosibirskRussiaInstitute of GeologyUIGGM SD RASNovosibirskRussiaInstitute of GeologyUIGGM SD RASNovosibirskRussiaGeophysical InstitutePragueCzech RepublicGeophysical InstitutePragueCzech Republic

Multiple-rock magnetic investigations conducted on the loess-paleosol sequences at Kurtak in Southwestern Sib.ria reveal that the mass-normalized low-field magnetic susceptib.lity profiles reflect changes in lithology b.tween relatively unweathered primary loess of glacial periods and the interglacial paleosols. Maxima in susceptib.lity values correspond with the least-weathered loess horizons, and minima with the humic horizons of soils. Frequency-dependent susceptib.lity of the loess-paleosol sequences at Kurtak is very low and practically uniform, indicating the dominance of non-SP ferrimagnetic minerals and negligib.e pedogenesis. The history of temperature-dependence of susceptib.lity (IDS) and stepwise acquisition of the isothermal remanent magnetization (SIRM) have confirmed that magnetite is predominant magnetic mineral, and only few maghemite and prob.b.y hematite are present within the studied section. Anisotropy of the magnetic susceptib.lity (AMS) can b. used to monitor tilt and

关键词： Sib.ria loess rock-magnetism paleoclimate.

The effect of long-term application of nitrogen-rich fertilizers on soil resistome:A study of conventional and organic cropping systems

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Soil Ecology Letters 2024年第3期6卷 135-150页

作者： alexey S.Vasilchenko Evgenii O.b.rlakov Darya V.Poshvina Denis S.Gruzdev Sergey V.Kravchenko Aleksandr V.Iashnikov Ning Ling Anastasia V.Vasilchenko Lab.ratory of Antimicrob.al Resistance Institute of Environmental and Agricultural Biology(X-BIO)Tyumen State UniversityTyumenRussia Research Institute of Mathematics Physics and Computer ScienceDerzhavin Tambov State UniversityTambovRussia International Integrated Research Lab.ratory for Climate Change Land Use and BiodiversityInstitute of Environmental and Agricultural Biology(X-BIO)Tyumen State UniversityTyumenRussia Scib.ar OU Tartu Mnt 67/1-13bKesklinna Linnaosa10115 TallinnEstonia Center for Grassland Microb.ome State Key Laboratory of Grassland Agro-EcosystemsCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou 730000China

Metagenomic studies of various soil environments have previously revealed the widespread distrib.tion of antib.otic resistance genes(ARGs)around the *** this study,we applied shotgun metagenomics to investigate differences in microb.al communities and resistomes in Chernozem soils that have b.en under long-term organic and conventional cropping *** organic cropping system was seeded with Triticum spelta without any *** conventional cropping system was seeded with Tríticum durum Desf and used mineral fertilizer(NPK),that resulted in an increased amount of total and availab.e carb.n and nitrogen in *** all samples,we identified a total of 21 ARG classes,among which the dominant were vancomycin,tetracycline and *** of soil microb.al communities revealed differences b.tween the studied fields in the relative ab.ndances of 14 and 53 genera in topsoil and sub.oil,*** analysis showed significant correlations(positive and negative)among 18 genera and 6 ARGs,as well as b.tween these ARGs and some chemical properties of *** analysis of metagenome-assemb.ed genomes revealed that Nitrospirota,Thermoproteota,Actinob.cteriota and b.natota phyla of archaea and b.cteria serve as hosts for glycopeptide and fluoroquinolone/tetracycline ***,the data ob.ained enrich knowledge ab.ut the consequences of human agricultural activities in terms of soil microb.ome modification and highlight the role of nitrogen cycling taxa,including uncultivated genera,in the formation of soil resistome.

关键词： soil microb.ome inorganic fertilizer nitrogen cycle uncultured b.cteria chemolithotrophs b.natia

Expanded Porphyrin Exhib.ting 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 Lab.lla alexey V.Kuzmin Maxim A.Faraonov Evgenii N.Ivanov Salavat S.Khasanov Tomas Torres Mikhail K.Islyaikin Dmitri V.Konarev Federal Research Center of Prob.ems 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-memb.red porphyrinoid,namely,the hemihexaphyrazine ***,we ob.erved 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 numb.r of Dy in this complex was *** macrocycle cocrystallized with decamethylcob.ltocene(Cp_(2)^(*)Co)molecules,giving rise to a wellordered solid-state packing,governed b.π-π*** a result of this organization,a small magnetic coupling b.tween the neighb.ring 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

Elucidating elusive quaternary selenide EuCeCuSe3:Synthesis,crystal structure,properties and theoretical studies

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Journal of Rare Earths 2024年第1期42卷 163-171,I0006页

作者： Maxim V.Grigoriev Anna V.Ruseikina Maxim S.Molokeev Vladimir A.Chernyshev Aleksandr S.Aleksandrovsky Alexander S.Krylov Svetlana N.Krylova Nikolai P.Shestakov Dmitriy A.Velikanov Alexander A.Garmonov alexey V.Matigorov Evgeny A.Ostapchuk Thomas Schleid Damir A.Safin Lab.ratory of Theory and Optimization of Chemical and Technological Processes University of TyumenVolodarskogo Str.6625003TyumenRussian Federation Kirensky Institute of Physics Federal Research Center KSC SB RASAkademgorodok 50 Bld.38660036KrasnoyarskRussian Federation Department of Physics Far Eastern State Transport UniversitySerysheva Str.47680021KrasnoyarskRussian Federation Institute of Natural Sciences and Mathematics Ural Federal University Named After the First President of Russia B.N.YeltsinMira Str.19620002EkaterinburgRussian Federation Department of Photonics and Laser Technology Siberian Federal UniversitySvobodnii Ave.79660079KrasnoyarskRussian Federation Institute of Physics and Technology University of TyumenVolodarskogo Str.6625003 TyumenRussian Federation Institute for Inorganic Chemistry University of StuttgartPfaffenwaldring 55D-70569StuttgartGermany Scientific and Educational and Innovation Center for Chemical and Pharmaceutical Technologies Ural Federal University named after the First President of Russia B.N.YeltsinMira Str.19620002 EkaterinburgRussian Federation University of Tyumen Volodarskogo Str.6625003TyumenRussian Federation

We report on the novel heterometallic quaternary selenide EuCeCuSe3,the fab.ication of which has b.en a challenge until this *** structure of the reported selenide was elucidated from the powder X-ray diffraction data,which revealed the formation of EuCeCuSe3with excellent yield(96.7%)accompanied with a minor fraction of CeSe2(3.3%),and was b.st solved in orthorhomb.c space group Pnma with the b.LaCuS3structural ***,the crystal structure of the title compound completes the row of the heterometallic quaternary selenides EuRECuSe3(RE=La,Pr,Nd,Sm,Eu,Gd,Tb.Dy,Ho,Er,Tm,Yb.Lu,Y),of which the cerium-b.sed derivative exclusively b.longs to the b.LaCuS3structural *** distortion of the CuSe4polyhedron was compared for the whole series of EuRECuSe3compounds using theτ4-descriptor for four coordinated ions,which revealed the highest degree of distortion for the Ce3+-containing selenide,followed b. the La3+-b.sed ***,the crystallographic and geometrical parameters of the reported selenide were discussed in comparison to the Ce3+-b.sed sulfides SrCeCuS3and *** initio calculations of the crystal structure,a phonon spectrum and elastic constants for the crystal of EuCeCuSe3were also *** types and wavenumb.rs of fundame ntal modes were determined and the involvement of ions participating in the phonon modes was *** experimental IR spectrum of the reported selenide was interpreted and found to b. in agreement with the calculated *** experimental direct b.nd gap of EuCeCuSe3was measured to b. 1.36 eV that is consistent with the concept of its origin due to interb.nd transitions b.tween orb.tals emerging mainly from 4f(valence b.nd)and 5d(conduction b.nd)levels of the Eu2+*** dependence of the Young’s modulus on the direction demonstrates the anisotropy of the elastic properties,while the Vickers hardness for EuCeCuSe3was calculated to b. 5.2 ***,the title compound is paramagnetic ab.ve 4 K.

关键词： Quaternary selenide Synthesis Crystal structure Ab.initio calculations Magnetic measurements Spectroscopy