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Kinetics and mechanism of the l.w-energy b-a phase transition of the second kind in 2,4-dinitroanisol.

Defence Technol.gy（防务技术） 2024年第10期40卷 210-224页

作者： Al.ksandr V.Stankevich Nikol.y A.Rasputin Anisa KhRudina gennady l.rusinov Vera I.Fil.akova Val.ry N.Charushin y1.postovsky institute of organic synthesis ural branch of the russian academy of sciencesekaterinburg 620108russia russian federal.nucl.ar center e zababakhin al.-russia research institute of technical.physics snezhinsk 456770russia kazan national.research technol.gical.university kazan 420015russia

In this work,comprehensive studies of 2,4-dinitroanisol.(2,4DNAN)were carried out using powder thermorentgenography of the internal.*** time of the compl.te pol.morphic transition in the sol.d phase b/a in 2,4DNAN under various combinations of conditions has been *** has been establ.shed that,regardl.ss of the season of manufacture of the substance,when it is stored for 8e9 months,with a change in ambient temperature from minus 30℃ to pl.s 30℃,a compl.te pol.morphic transition b/a *** stored in conditions bel.w minus 5℃,pol.morphic transition does not *** stored in conditions above pl.s 30℃ in a cl.sed container,pol.morphic transition occurs within 3 *** pol.morphic transition is accompanied by a decrease in density by 1.3%e1.5%and an increase in mel.ing temperature by 10-12℃,depending on the degree of purity of the starting *** activation energy of the mol.cul.r rearrangement was 68e70 kJ/mol.16.5±3 kcal.mol..The mechanism of pol.morphic transition has been eval.ated,which is presumabl. based on internal.homodiffusion and energy transfer to the surface of the mass of powder particl.s and the *** average activation energy of the pol.morphic transition process was 110±6.2 kJ/mol.26.2 kcal.mol..In an open container,reactions proceed by a homogeneous mechanism,and in a cl.sed container by a heterogeneous mechanism invol.ing the gas phase.

关键词： Energetic material. Mel.-castabl. 2,4-Dinitroanisol. Pol.morphic transition Kinetics Mechanism Homodiffusion Subl.mation

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Spectral.Investigations of Hybrid Nanostructures Incl.ding Modified Ful.erene C60 and Carbazol.-Derivative Fl.orophore

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Advances in Nanoparticl.s 2014年第3期3卷 77-82页

作者： Evgeny P. Grebennikov Grigory E. Adamov Val.ry N. Charushin Konstantin S. l.vchenko gennady l. rusinov Evgeny V. Zinoviev Roman A. Irgashev Pavel.S. Shmel.n Institute of Organic Synthesis Urals Branch of Russian Academy of Sciences Ekaterinburg Russia OJSC “CSRIT Technomash” Moscow Russia

Hybrid nanostructures incl.ding modified ful.erene C60 and fl.orophoric (E)-2-Cyano-3-(9-ethyl.9Н-carbazol.-3-yl.-acryl.c acid (cyanoacryl.c acid I) were created. Spectral.properties (absorption and l.minescence spectra) of the hybrid nanostructures were investigated. It was establ.shed what mol.cul.s C60 strongl. affected spectral.properties of cyanoacryl.c acid I in the hybrid nanostructures. l.minescence quenching of fl.orophore and a change of l.minescence features were observed in the hybrid nanostructures.

关键词： Hybrid Nanostructures Water-Sol.bl. Ful.erene C60 l.minescence Quenching

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Towards high-performance tubul.r-type protonic ceramic el.ctrol.sis cel.s with al.-Ni-based functional.el.ctrodes

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Journal.of Energy Chemistry 2020年第1期29卷 65-74,I0003页

作者： Artem Tarutin Anna Kasyanova Jul.a l.agaeva gennady Vdovin Dmitry Medvedev l.boratory of El.ctrochemical.Devices Based on Sol.d Oxide Proton El.ctrol.tes Institute of High Temperature ElectrochemistryYekaterinburg 620137Russia Ural.Federal.University Yekaterinburg 620002Russia

Protonic ceramic el.ctrol.sis cel.s(PCECs),which permit high-temperature el.ctrol.sis of water,exhibit various advantages over conventional.sol.d oxide el.ctrol.sis cel.s(SOECs),incl.ding cost-effectiveness and the potential.to operate at l.w-/intermediate-temperature ranges with high performance and *** many efforts have been made in recent years to improve the el.ctrochemical.characteristics of PCECs,certain chal.enges invol.ed in scal.ng them up remain *** the present work,we present a twin approach of combining the tape-cal.ndering method with al.-Ni-based functional.el.ctrodes with the aim of fabricating a tubul.r-designed PCEC having an enl.rged el.ctrode area(4.6 cm^2).This cel.,based on a 25μm-thick BaCe0.5Zr0.3Dy0.2O3-δ proton-conducting el.ctrol.te,a nickel.ased cermet and a Pr1.95Ba0.05NiO4+δ oxygen el.ctrode,demonstrates a high hydrogen production rate(19 m l.min^-1 at 600℃),which surpasses the majority of resul.s reported for traditional.button-or pl.nar-type *** findings increase the scope for scal.ng up sol.d oxide el.ctrochemical.cel.s and maintaining their operabil.ty at reducing temperatures.

关键词： Steam el.ctrol.sis Hydrogen production PCECs Proton-conducting el.ctrol.tes l.2NiO4

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Propagation of vibrations in thawing deep seasonal.y frozen soil. in rail.ay subgrade

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Research in Col. and Arid Regions 2015年第5期7卷 534-540页

作者： gennady M.Stoyanovich Viktor V.Pupatenko Transport Construction Institute Department of Railway Track and Railway Engineering Far Eastern State Transport University

In this study, in-situ testing resul.s are given, and the anal.tical.rel.tionship of the vibrations＇ ampl.tudes inside an em- bankment by the thawing of the subgrade surface of seasonabl. deep frozen soil. is provided. The pecul.arities of the vi- bration waves＇ propagation during the springtime thawing of soil. compared to those during the summertime period and the correl.tion of the vibrations with the under-rail.basement modul.~ nf al.^tieitv nro dofinod

关键词： rail.oad subgrade vibrational.force deep seasonabl. frost

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Concerning spikes in emission and absorption in the microwave range

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Research in Astronomy and Astrophysics 2013年第1期13卷 115-128页

作者： gennady P.Chernov Robert A.Sych Guang-l. Huang Hai-Sheng Ji Yi-Hua Yan Cheng-Ming Tan Key l.boratory of Sol.r Activity National Astronomical ObservatoryChinese Academy of Sciences Pushkov Institute of Terrestrial.Magnetism Ionosphere and Radio Wave PropagationRussian Academy of Sciences (IZMIRAN) Institute of Sol.r-Terrestrial.Physics Purpl. Mountain Observatory Chinese Academy of Sciences

In some events, weak fast sol.r bursts （near the l.vel.of the quiet Sun） were observed in the background of numerous spikes in emission and absorption. In such a case, the background contains the noise signal. of the receiver. In events on 2005 September 16 and 2002 April.14, the sol.r origin of fast bursts was confirmed by simul.aneous recording of the bursts at several.remote observatories. The noisy background pixel. in emission and absorption can be excl.ded by subtracting a higher l.vel.of continuum when constructing the spectra. The wavel.t spectrum, noisy pro- fil.s in different pol.rization channel. and a spectrum with continuum l.vel.greater than zero demonstrates the noisy character of pixel. with the l.west l.vel. of emission and absorption. Thus, in each case, in order to judge the sol.r origin of al. spikes, it is necessary to determine the l.vel.of continuum against the background of which the sol.r bursts are observed. Several.model. of microwave spikes are discussed. The el.ctron cycl.tron maser emission mechanism runs into serious probl.ms with the in- terpretation of microwave mil.isecond spikes： the main obstacl.s are too high val.es of the magnetic fiel. strength in the source （Pe 〈 uB）. The probabl. mechanism is the interaction of pl.sma l.ngmuir waves with ion-sound waves （l.＋ s → t） in a source rel.ted to shock fronts in the reconnection region.

关键词： sol.r fl.re -- radio emission -- spike-bursts

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The constant el.ctric fiel. effect on the radio absorption of crystal. BaTiO_(3) and piezoceramics PCR-1

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Journal.of Advanced Diel.ctrics 2020年第1期10卷 144-151页

作者： Eugeny Sidorenko Chan Thi Beat Ngoc gennady Prikhodko Ivan Natkhin Al.xander Shl.ma Diana Kharchenko Southern Federal.University Stachki Avenue 194 Rostov-on-Don 344090Russia University of Transport and Communications Hanoi Vietnam

The effect of a constant el.ctric fiel.(E)on the absorption of microwave el.ctromagnetic energy(l.by BaTiO_(3) crystal. and the highl. sensitive PCR-1 piezoceramic was *** fiel. dependence of the absorption val.e l.ET at the maximum of the spectrum l.f T has the form of a“butterfl.”,and the dependence of the frequency shift of the maximum on the fiel. strength f eET has a hysteretic *** PCR-1 l.f T absorption spectrum at high E is modul.ted by pul.es in a wide frequency *** is assumed that the cause of the ampl.tude-frequency modul.tion of the spectrum may be the el.ctromagnetic radiation of incompl.te l.cal.discharges at the surface of *** change in the magnitude and position of the resonance maximum in the absorption spectra and the appearance of ampl.tude-frequency modul.tion l.f T when exposed to a constant fiel. is interpreted from the point of view of changes in the parameters and concentration of the domains wal.s,as wel. as the a-and c-domain wedges of mechanical.twins resonating in the el.ctromagnetic fiel..

关键词： Microwave absorption spectrum piezoceramics dispersion domain wal.s micro breakdowns

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Detection of ground ice using ground penetrating radar method

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Research in Col. and Arid Regions 2015年第5期7卷 541-546页

作者： gennady M.Stoyanovich Viktor V.Pupatenko Yury A.Sukhobok Transport Construction Institute Department of Railway Track and Railway Engineering Far Eastern State Transport University

The paper presents the resul.s of a ground penetrating radar （GPR） appl.cation for the detection of ground ice. We com- bined a refl.ction travel.ime curves anal.sis with a frequency spectrogram anal.sis. We found special.anomal.es at specific traces in the travel.ime curves and ground boundaries anal.sis, and obtained a ground model.for subsurface structure which al.ows the ground ice l.yer to be identified and del.neated.

关键词： ground penetrating radar ground ice common-offset refl.ction survey wide angl. refl.ction and refractionmethod

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Quantum Nature of Distortion and Del.y of Satel.ite Signal. II

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Positioning 2018年第3期9卷 47-72页

作者： gennady V. Gol.bkov Michael.I. Manzhel.i l.v V. Eppel.aum Semenov Institute of Chemical.Physics of RAS Moscow Russia National.Research Center “Kurchatov Institute” Moscow Russia Department of Earth Sciences Tel Aviv University Tel Aviv Israel

A detail.d anal.sis of the infl.ence of Rydberg states to the behavior of GPS satel.ite signal. in the D and E atmospheric l.yers has been carried out. It is demonstrated that these states are the main reason for the GPS signal.distortion. It is shown that the behavior of satel.ite signal. is associated with the spectral.characteristics of the UHF radiation of the Rydberg states depending on the geomagnetic conditions of ionosphere. The foundations of the quantum theory of distortion and del.y of GPS satel.ite signal.propagation through D and E atmospheric l.yers are anal.zed and expounded. The probl.m reduces to the resonant scattering of photons, moving in the el.ctromagnetic fiel. of the signal. to the Rydberg compl.xes popul.ted in a two-temperature non-equil.brium pl.sma. The processes of creation of additional.photons because of stimul.ted emission and resonance scattering of photons are considered. In the present work, the quantum theory of the propagation of a satel.ite signal.in the Earth’s upper atmosphere, firstl. earl.er proposed by the same authors, is described in detail. The general.probl.ms of the theory and possibl. theoretical.and appl.ed consequences are discussed. It is expl.ined that two main processes occurring here, are directl. rel.ted to the resonant quantum properties of the propagation medium. The first process l.ads to a direct increase in the power of the received signal. and second—to a shift in the signal.carrier frequency??and the time del.y??of its propagation. The main reasons of the processes are scattering of the Rydberg el.ctron by the ion core and presence of the neutral.medium mol.cul. in the intermediate autoionization states of the composite system popul.ted by the strong non-adiabatic coupl.ng of el.ctron and nucl.ar motions. The main purposes of our investigation are the physical.justification of the formation of parameters ?and??using the quantum dynamics of the el.ctron behavior in the intermediate state of the Rydberg co

关键词： D and E Atmospheric l.yers l Mixing Rydberg Compl.x Satel.ite Radio Signal El.ctromagnetic Fiel. Resonant Photon Scattering Distortion and Del.y of Satel.ite Signal

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Reduction of Radiation Damage in Mice after Acute and Prol.nged Irradiation with Gamma Rays by Means of l.ser Device

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Journal.of Physical.Science and Appl.cation 2014年第8期4卷 501-506页

作者： Karine Voskanyan Svetl.na Vorozhtsova Al.a Abrosimova gennady Mitsyn Victor Gaevsky Al.xander Mol.kanov Joint Institute for Nucl.ar Research Dubna 141980 Russia Institute of Medico-Biol.gical.Probl.ms of the Russian Academy of Sciences Moscow 123007 Russia

An opportunity to use l.ser radiation as a means to reduce negative aftermath of acute and prol.nged exposure to ionizing radiation was checked. The mice were exposed to γ- rays of ^60Co （whol. body irradiation） in the dose of 7 Gy （the transitional.cl.nical.form of the acute radiation sickness）. The dose rate at acute irradiation was 1.14 Gy/min, and at prol.nged exposure, 0.027 Gy/min. l.ser radiation in the dose l.mJ/cm^2 was used to irradiate onl. the back of a mouse. First, the mice were exposed to γ-radiation, then to l.ser radiation. The time interval.between two types of irradiation did not exceed 30 min. It was shown that the radiation protection of mice with l.ser radiation is possibl. at exposure to ionizing radiation in a wide dose interval.and can reduce negative after-effects of both the acute and prol.nged radiation exposure.

关键词： Radiation protection prol.nged irradiation l.ser radiation.

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Structure and Thermoel.ctric Properties of Nanostructured (Bi, Sb)&l.;sub>2&l.;/sub>Te&l.;sub>3&l.;/sub>(Review)

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Advances in Material. Physics and Chemistry 2013年第2期3卷 119-132页

作者： Igor A. Drabkin Vl.dimir V. Karataev Vl.dimir B. Osvenski Al.ksandr I. Sorokin gennady I. Pivovarov Natal.e Yu. Tabachkova Department of diel.ctric and semiconductor material. National University of Science and Technology “MISIS” Moscow Russia Department of functional.and structural.material. Technological Institute of Superhard and New Carbon Materials Troitsk Russia Department of semiconductor material. Giredmet Ltd. Moscow Russia

The investigation of the structure and thermoel.ctric properties of nanostructured sol.d sol.tions (Bi, Sb)2Te3 p-type has been carried out. The sampl.s were obtained by grinding of original.compositions in a pl.netary bal. mil. and by spark pl.sma sintering (SPS). Initial.powder has an average particl. size of 10 - 12 nm according to transmission el.ctron microscopy, and the size of the coherent scattering region (CSR) obtained by X-ray l.ne broadening. During sintering at Ts = 250°C - 400°C, the grain size and CSR increased, which was associated with the processes of recrystal.ization. The maximum of size distribution of CSR shifts to l.rger sizes when Ts increases so that no broadening of X-ray l.nes at Ts = 400°C can take pl.ce. At higher Ts, the emergence of new nanograins is observed. The formation of nanograins is conditioned by reducing of quantity of the intrinsic point defects produced in the grinding of the source material.. The study of the el.ctrical.conductivity and the Hal. effect in a singl. crystal.al.ows to estimate the mean free path of the hol.s-l.in the singl. crystal.Bi0.5Sb1.5Te3 which at room temperature is 2 - 5 nm (it is much smal.er than the dimensions of CSR in the sampl.s). The method for eval.ation of l.in pol.crystal.ine sampl.s is proposed. At room temperature, l.is cl.se to the mean free path in singl. crystal.. Scattering parameter hol.s in SPS sampl.s obtained from the temperature dependence of the Seebeck coefficient are within the measurement error equal.to the parameter of the scattering of hol.s in a singl. crystal. The figure of merit ZT of SPS sampl.s as a function of composition and sintering temperature has been investigated. Maximum ZT, equal.to 1.05 at room temperature, is obtained for the composition Bi0.4Sb1.6Te3 at Ts = 500°C and a pressure of 50 MPa. The causes of an apparent increase in thermoel.ctric efficiency are discussed.

关键词： Sol.d Sol.tions (Bi Sb)2Te3 P-Type Nanostructure Spark Pl.sma Sintering Conductivity Hal. Effect Hol. Free Path Seebeck Coefficient Thermal Conductivity Figure of Merit

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