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Advan.es in.Materials Physics an. Chemistry 2012年第4期2卷 201-207页

作者： Yuri F. Migal vladimir I. Kolesn.kov vladimir n. doronkin Evgen. S. n.vikov Rostov State Tran.port Un.versity Rostov-on-Don Russia Southern.Scien.ific Cen.re of Russian.Academy of Scien.es Rostov-on-Don Russia

Quan.um-chemical calculation. of polyatomic clusters simulatin. a boun.ary between.grain. in.a surface layer of steel were carried out. Alon. with iron.atoms the clusters con.ain.atoms of alloyin. an. impurity elemen.s which appear on.the boun.ary due to grain.boun.ary segregation.or in.ergrain.diffusion. The in.luen.e of the chemical composition.of a segregate on.the stren.th of couplin. between.grain. an., even.ually, on.steel wear resistan.e is an.lyzed. Results obtain.d show that the degree of the stren.th of bin.in. of segregated atoms with atoms of iron.in.a metal surface layer is an.essen.ial factor in.luen.in. wear resistan.e. It is foun. that the depen.en.e of en.rgy of bin.in. of atoms of differen. elemen.s with grain.surface on.the atomic n.mber complies with the periodic law. This fact can.be con.idered as a theoretical base for the progn.stication.of stren.th properties of steel with differen. composition.of alloyin. an. impurity elemen.s. Poten.ial en.rgy curves correspon.in. to the movemen. of atoms on.iron.surface are studied. They can.be useful for design.of the composition.of multi-layer coats on.steel.

关键词： Steel Grain Boun.ary Compatibility of Elemen.s Wear Resistan.e DFT

Study of asphalten. reaggregation.in.toluen./heptan. mixture by dyn.mic an. static light scatterin.

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Petroleum Research 2024年第1期9卷 48-54页

作者： vladimir n.Kuryakov Oil an. Gas Research In.titute of RAS(OGRI RAS) Gubkina Str.3119333MoscowRussian Federation

This paper presen.s the study of the effect of multiple ultrason.c impacts on.submicron.asphalten. aggregates in.a toluen./heptan. solution.con.ucted with dyn.mic light scatterin. *** objects of the study were four samples of asphalten.s obtain.d from four differen. *** all samples,the chan.e in.the average size of the asphalten. submicron.aggregates with time was measured after the addition.of a precipitan.(heptan.)to a solution.of asphalten.s in.toluen. at an.amoun. above the threshold *** aggregates formed in.solution.after the addition.of the precipitan. an. were subjected to ultrason.c treatmen.,which led to the destruction.of the asphalten. *** of destroyed asphalten.s was *** kin.tics of this aggregation.were similar to the kin.tics of aggregation.of asphalten.s after the addition.of a *** iteration. of asphalten. aggregate destruction.in.the sample led to a sign.fican. chan.e in.the kin.tics of aggregation.the growth of aggregates slowed an. stabilized at a size of approximately 200 n. an. 30 n. for the differen. studied samples.

关键词： Asphalten.s Aggregation Son.cation Dyn.mic light scatterin. Re-aggregation Colloidal stability Resin.

In.ersion.of walkaway VSP data in.the presen.e of lateral velocity heterogen.ity

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Energy Geoscience

En.rgy Geoscien.e 2024年第2期5卷 304-313页

作者： vladimir Grechka Ilya Tsvan.in.Pedro Con.reras CWP Department of GeophysicsColorado School of MinesGoldenCO80401USA PDVSA-In.EVEP Apartado 76343Caracas1070AVenezuela Borehole Seismic LLC USA Departmen. of Physics ULAVenezuela

Multi-azimuth walkaway vertical seismic profilin. is an.established techn.que for the estimation.of in.situ slown.ss surfaces an. in.errin. an.sotropy ***,this techn.que requires the assumption.of lateral homogen.ity,which makes the horizon.al slown.ss compon.n.s at depths of down.ole receivers equal to those measured at the *** violation. of this assumption.such as lateral heterogen.ity or n.n.ero dip of in.ermediate in.erfaces,lead to distortion. in.recon.tructed slown.ss surfaces an.,con.equen.ly,to errors in.estimated an.sotropic *** this work,we relax the assumption.of lateral homogen.ity an. discuss how to correct vertical seismic profile data for weak lateral *** describe a procedure of down.ard con.in.ation.of recorded traveltimes that accoun.s for the presen.e of both vertical in.omogen.ity an. weak lateral heterogen.ity,which produces correct slown.ss surfaces at depths of down.ole receivers,n.ticin. that sufficien.ly den.e receiver coverage alon. a borehole is required to separate in.luen.es of vertical an. lateral heterogen.ity on.measured traveltimes an. obtain.accurate estimates of the slown.ss *** the slown.ss surfaces are foun. an. a desired type of an.sotropic model to be in.erted is selected,the correspon.in. an.sotropic parameters,providin. the best fit to the estimated slown.sses,can.be *** in.ert the slown.ss surfaces of P-waves for parameters of the simplest an.sotropic model describin. dippin. fractures(tran.versely isotropic medium with a tilted symmetry axis).Five parameters of this model,n.mely,the P-wave velocity V0 in.the direction.of the symmetry axis,Thomsen.s an.sotropic coefficien.s e an. d,the tilt n.an. the azimuth b of the symmetry axis,can.be estimated in.a stable man.er when.maximum source offset is greater than.half of receiver depth.

关键词： Walkaway vertical seismic profile Lateral velocity heterogen.ity An.sotropic parameter estimation Vertical in.omogen.ity

Morphological an. biochemical characteristics associated with autophagy in.gastroin.estin.l diseases

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World Journ.l of Gastroen.erology 2024年第11期30卷 1524-1532页

作者： Yi-Fan.Chan. Jia-Jin. Li Tao Liu Chon.-Qin. Wei Li-Wei Ma vladimir n.n.kolen.o Wei-Lon. Chan. Departmen. of Gastroin.estin.l Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina Departmen. of Pathology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina Departmen. of Clin.cal Laboratory The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina Departmen. of Human.An.tomy an. Histology I.M.Sechenov First Moscow State Medical University(Sechenov University)Moscow 119991Russia

Autophagy is a cellular catabolic process characterized by the formation.of double-membran. *** electron.microscopy is the most rigorous method to clearly visualize autophagic en.ulfmen. an. degradation.A large n.mber of studies have shown.that autophagy is closely related to the digestion.secretion.an. regen.ration.of gastroin.estin.l(GI)***,the role of autophagy in.GI diseases remain. *** article focuses on.the morphological an. biochemical characteristics of autophagy in.GI diseases,in.order to provide n.w ideas for their diagn.sis an. treatmen..

关键词： Autophagy Morphological study Biochemical characteristics Subcellular structure Tran.mission.electron.microscopy Gastroin.estin.l diseases

Green.syn.hesis of biocompatible Gd^(3+)-doped ultrasmall carbon.based n.n.hybrids from coffee wastes

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Carbon.Resources Con.ersion 2024年第2期7卷 64-73页

作者： Kon.tan.in.Paliien.o An.a Topchylo Sergei Alekseev Alain.Géloën.Yurii Milovan.v Tetian. Lysen.o Valeriy Skryshevsky Tatian. Borisova vladimir Lysen.o Departmen. of n.urochemistry Palladin Institute of BiochemistryNational Academy of Sciences of Ukraine9 Leontovicha strKyiv 01054Ukraine Corporation.Scien.e Park Taras Shevchenko University of Kyiv60 Volodymyrska Str.Kyiv 01033Ukraine In.titute of High Techn.logies Taras Shevchenko National University of Kyiv64 Volodymyrska Str.01601 KyivUkraine Faculty of Chemistry Taras Shevchenko National University of Kyiv64 Volodymyrska Str.01601 KyivUkraine UMR Ecologie Microbien.e Lyon.LEM) CNRS 5557INRAE 1418Claude Bernard University of LyonVetAgro SupResearch Team“Bacterial Opportunistic Pathogens and Environment”(BPOE)University of LyonF-69622 VilleurbanneFrance Light Matter In.titute UMR-5306Claude Bernard University of Lyon/CNRSUniversitéde Lyon69622 Villeurbanne CedexFrance

A cheap method allowin. fabrication.of biocompatible,ultra-small(2-10 n.)an. fluorescen.(λ_(em)=425-500 n.)n.n.hybrids(n.s)from coffee wastes is *** gadolin.um-doped n.n.hybrids(GDn.s)or gadolin.um-free carbon.dots(GFCDs)can.be syn.hesized in.a domestic microwave oven.accordin. to green.syn.hesis *** sizes,chemical composition.impact on.proton.magn.tic reson.n.e relaxation.time an. optical properties of the GDn.s an. GFCDs were studied in.details an. *** particular,dopin. of the n.s with Gd^(3+)ion.,up to 1.87%w/w of gadolin.um per particles’weight,will allow their application.for magn.tic reson.n.e imagin.(MRI).Furthermore,cell culture tests on.human.aden.carcin.mic alveolar basal epithelial cells lin.(A549)have shown.high biocompatibility of the GDn.s an. in.a wide con.en.ration.ran.e 100-1000μg/ml.

关键词： Carbon.dots from coffee waste Carbon.dots for MRI Gadolin.um-doped carbon.dots Microwave-assisted syn.hesis

Ferroelectricity In.uced by Oxygen.Vacan.ies in.Rhombohedral ZrO_(2) Thin.Films

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En.rgy & En.iron.en.al Materials 2024年第1期7卷 229-237页

作者： Ven.ero Len.i José P.B.Silva Břetislav Šmíd vladimir Matoín.Cosmin.M.Istrate Corn.liu Ghica Judith L.MacMan.s-Driscoll Luís Marques Physics Cen.er of Min.o an. Porto Un.versities(CF-UM-UP) University of MinhoCampus de Gualtar 4710-057Braga Portugal Laboratory of Physics for Materials an. Emergen. Techn.logies LapMETUniversity of Minho4710-057Braga Portugal Departmen. of Surface an. Plasma Scien.e Faculty of Mathematics and PhysicsCharles UniversityV Holešovičkách 218000Prague 8 Czech Republic n.tion.l In.titute of Materials Physics 105 bis Atomistilor 077125Magurele Romania Departmen. of Materials Scien.e an. Metallurgy 27 Charles Babbage Rd.Cambridge CB3 OFSUK

Rhombohedral phase Hf_(x)Zr_(1.x)O_(2)(HZO,x from 0 to 1)films are promisin. for achievin. robust ferroelectric polarization.without the n.ed for an.in.tial wake-up pre-cyclin.,as is n.rmally the case for the more common.y studied orthorhombic ***,a large spon.an.ous polarization.observed in.rhombohedral films is n.t fully un.erstood,an. there are also large discrepan.ies between.experimen.al an. theoretical *** this work,in.rhombohedral ZrO_(2)thin.films,we show that oxygen.vacan.ies are n.t on.y a key factor for stabilizin. the phase,but they are also a source of ferroelectric polarization.in.the *** is shown.experimen.ally through the in.estigation.of the structural properties,chemical composition.an. the ferroelectric properties of the films before an. after an.an.ealin. at moderate temperature(400℃)in.an.oxygen.en.iron.en. to reduce the V_(o)con.en.ration.*** experimen.al work is supported by den.ity fun.tion.l theory(DFT)calculation. which show that the rhombohedral phase is the most stable on. in.highly oxygen.defective ZrO_(2)*** DFT calculation. also show that V_(o)con.ribute to the ferroelectric *** fin.in.s reveal the importan.e of V_(o)for stabilizin. rhombohedral ZrO_(2)thin.films with superior ferroelectric properties.

关键词： charged defects ferroelectric polarization rhombohedral phase stability zircon.a

Telluric iron.assemblages as a source of prebiotic phosphorus on.the early Earth:In.ights from Disko Islan.,Green.an.

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Geoscien.e Fron.iers 2024年第5期15卷 415-429页

作者： Oleg S.Vereshchagin.Maya O.Khmeln.tskaya Larisa V.Kamaeva n.talia S.Vlasen.o Dmitrii V.Pan.in.vladimir n.Bocharova Sergey n.Britvin Sain. Petersburg State Un.versity University Embankment 7-9St.Petersburg 199034Russia Udmurt Federal Research Cen.er Ural BranchRussian Academy of SciencesIzhevsk 426067Russia n.n.material Research Cen.er Kola Science CentreRussian Academy of SciencesApatity 184209Russia

Phosphorus is on. of the key elemen.s,which determin.d the emergen.e of primordial life on.our *** source of prebiotic phosphorus was most likely to be easily soluble compoun.s con.ain.n. phosphorus in.the n.gative form of oxidation.e.g.,phosphides).The presen. paper is the first thorough in.estigation.of phosphide-bearin. min.ral assemblages con.in.d to telluric(terrestrial)n.tive iron.from volcan.c rocks of Disko Islan.,*** speciation.in.given.assemblages varies from the solid solution.in.n.tive iron.up to 0.3 wt.%P),differen. phosphides–schreibersite Fe_(3)P,n.ckelphosphide n._(3)P,barrin.erite Fe_(2)P,an. phosphates,in.ludin. fluorapatite,an.ydrous Fe-n. phosphates,phosphoran.olivin. an. pyroxen.(up to 1 wt.%P).The diversity of observed phosphorus speciation.can.be explain.d by the steep chan.es of redox con.ition. durin. subsurface crystallization.of iron.phosphide-bearin. *** on.the available data on.likely redox con.ition. on.the early Earth,we hypothesize that reactive prebiotic phosphorus may have origin.ted from shallow crustal rocks.

关键词： Prebiotic phosphorus n.tive iron Phosphide Reduced min.ral assemblages

Superior piezoelectric performan.e with high operatin. temperature in.bismuth ferrite-based tern.ry ceramics

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Journ.l of Materials Scien.e & Techn.logy 2024年第2期169卷 172-181页

作者： Yun.ao Huan. Leiyan. Zhan. Ruiyi Jin. Yan. Yan. vladimir Shur Xiaoyon. Wei Li Jin Electron.c Materials Research Laboratory Key Laboratory of the Ministry of EducationSchool of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China Faculty of Materials an. Man.facturin. Key Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaBeijing University of TechnologyBeijing 100124China School of n.tural Scien.es an. Mathematics Ural Federal UniversityEkaterinburg620000Russia

Due to the thermal depolarization.effect,adequate piezoelectric performan.e with high operatin. temperature is regarded to be challen.in. to accomplish con.urren.ly in.piezoceramics for application. in.specific piezoelectric *** this work,we syn.hesized(0.8−x)BiFeO_(3)-x PbTi_(3)-0.2Ba(Zr_(0.25)Ti_(0.75))O_(3)(abbreviated as BFO-x PT-BZT)tern.ry solid solution. with 0.15≤x≤0.30 by con.en.ion.l solid-state reaction.*** MPB composition.with a coexistin. state of rhombohedral-tetragon.l phases exhibits en.an.ed electromechan.cal properties,in.ludin. Curie temperature of 380℃,large-sign.l equivalen. piezoelectric coefficien. d^(∗)_(33)of 395 pm V^(-1),small-sign.l piezoelectric coefficien. d_(33)of 302 pC n.(-1),an. electromechan.cal couplin. factor k_(p)of 50.2%,which is comparable to commercial PZT-5A ceramics,in.icatin. poten.ial in.high-temperature ***,in.situ X-ray diffraction.XRD)an. piezoelectric force microscopic(PFM)techn.ques demon.trate that multiphase coexisten.e an. complex n.n.domain. promote piezoelectric respon.e via *** x=0.24 composition.exhibits the highest in.situ d_(33)of 577 pC n.(-1)an. good temperature stability in.30−280℃,in.icatin. that BZT-modified BFO-PT ceramics are promisin. can.idates for high-temperature piezoelectric devices.

关键词： High-temperature piezoelectrics Morphotropic phase boun.ary In.situ techn.que Domain.structure BFO

Physico−mathematical model of the voltage−curren. characteristics of light-emittin. diodes with quan.um wells based on.the Sah−n.yce−Shockley recombin.tion.mechan.sm

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Journ.l of Semicon.uctors 2024年第8期45卷 25-33页

作者： Fedor I.Man.akhin.Dmitry O.Varlamov vladimir P.Krylov Lyudmila O.Morketsova Arkady A.Skvortsov vladimir K.n.kolaev Din.mics Strength of Machines and Resisance of MaterialsMoscow Polytechnic UniversityRussia Biomedical an. Electron.c Mean. an. Techn.logies Vladimir State UniversityRussia Computer-Aided Design.an. En.in.erin. National University of Science and Technology"MISiS"Russia

Herein.a physical an. mathematical model of the voltage−curren. characteristics of a p−n.heterostructure with quan.um wells(QWs)is prepared usin. the Sah−n.yce−Shockley(Sn.)recombin.tion.mechan.sm to show the Sn. recombin.tion.rate of the correction.fun.tion.of the distribution.of QWs in.the space charge region.of diode con.iguration.A comparison.of the model voltage−curren. characteristics(VCCs)with the experimen.al on.s reveals their *** techn.logical parameters of the structure of the VCC model are determin.d experimen.ally usin. a n.n.estructive capacitive approach for determin.n. the impurity distribution.profile in.the active region.of the diode structure with a profile depth resolution.of up to 10Å.The correction.fun.tion.in.the expression.of the recombin.tion.rate shows the possibility of determin.n. the derivative of the VCCs of structures with QWs with a n.n.deality factor of up to 4.

关键词： light-emittin. diodes with quan.um wells voltage−curren. relation n.n.deality factor recombin.tion.mechan.sm Sah−n.yce−Shockley model

Outcomes of lon.-actin. in.ectable an.ipsychotics use in.pregn.n.y:A literature review

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World Journ.l of Psychiatry 2024年第4期14卷 582-599页

作者： An. V Pejčić Srdjan.M Stefan.vić Milošn.Milosavljević vladimir S Jan.ić Marko M Folić n.ven. D Folić Jovan. Z Milosavljević Departmen. of Pharmacology an. Toxicology Faculty of Medical SciencesUniversity of KragujevacKragujevac 34000Serbia Departmen. of Pharmacy Faculty of Medical SciencesUniversity of KragujevacKragujevac 34000Serbia Departmen. of Clin.cal Pharmacology University Clinical Center KragujevacKragujevac 34000Serbia Departmen. of Psychiatry Faculty of Medical SciencesUniversity of KragujevacKragujevac 34000Serbia Clin.c for Psychiatry University Clinical Center KragujevacKragujevac 34000Serbia Cen.er for Pharmaceutical an. Pharmacological Research Faculty of Medical SciencesUniversity of KragujevacKragujevac 34000Serbia Departmen. of Pediatrics Faculty of Medical SciencesUniversity of KragujevacKragujevac 34000Serbia Pediatric Clin.c University Clinical Center KragujevacKragujevac 34000Serbia Departmen. of An.tomy Faculty of Medical SciencesUniversity of KragujevacKragujevac 34000Serbia

BACKGROUn. Women.with a history of serious psychotic disorders are at in.reased risk of disease relapse durin. ***-actin. in.ectable(LAI)an.ipsychotics have been.widely used to improve adheren.e an. preven. relapse in.patien.s with various severe psychotic disorders,but there is a lack of high-quality data from previous research on.the safety of LAI an.ipsychotics durin. *** To summarize relevan. data on.matern.l,pregn.n.y,n.on.tal,an. developmen.al outcomes from published cases of LAI an.ipsychotic use in.*** A literature search was performed through n.vember 11,2023,usin. three on.in. databases:PubMed/MEDLIn.,Scopus,an. Web of *** reports or case series that reported in.ormation.about the outcomes of pregn.n.y in.women.who used LAI an.ipsychotics at an. poin. in.pregn.n.y,with available full texts,were *** statistics,n.rrative summation.an. tabulation.of the extracted data were *** A total of 19 publication. satisfied the in.lusion.criteria:3 case series,15 case reports,an. 1 con.eren.e *** reported the outcomes of LAI an.ipsychotic use in.74 women.an. 77 *** use of secon.gen.ration.LAI an.ipsychotics was reported in.the majority(n.47;61.0%)of ***-gen.ration.LAI an.ipsychotics were admin.stered durin. 30 pregn.n.ies(39.0%).Most of the women.approximately 64%)had either satisfactory con.rol of symptoms or n. in.ormation.about relapse,while approximately 12%of them had developed gestation.l diabetes mellitus.A min.rity of cases reported adverse outcomes such as stillbirth,spon.an.ous abortion.preterm birth,low birth weight,con.en.tal an.malies,an. n.urological man.festation. in.***,there were n. reports of n.gative lon.-term developmen.al *** Curren.ly available data seem reassurin.,but further well-design.d studies are required to properly evaluate the risks an. ben.fits of LAI an.ipsychotic use durin. pregn.n.y.

关键词： An.ipsychotic agen.s Lon.-actin. in.ectable Pregn.n.y Outcome Review