267 research outputs found
Collisionally-assisted spectroscopy of water from 27000 to 34000 cm-1
No full textWe report here an experimental approach that enables measurement of weak transitions to a wide range of rovibrational levels of water in the energy region 27000-34200 cm-1. We have previously demonstrated the use of laser double-resonance overtone excitation to access highly excited vibrational levels from single rovibrational states. While this approach simplifies the assignment of the spectra, it strongly reduces the number of observed transitions and hence our ability to test theoretical predictions. Here we increase significantly the number of observed transitions by allowing rotational and vibrational relaxation of H2O at intermediate levels of the double-resonance excitation scheme. Our recently developed semi- empirical potential energy surface PES12 (P. Maksyutenko, J. S. Muenter, N. F. Zobov, S. V. Shirin, O. L. Polyansky, T. R. Rizzo, and O. V. Boyarkin, J. Chem. Phys. 126, 241101 (2007)) enables assignment of the resulting complex spectra and reproduction of the measured transitions with sub-cm-1 accuracy.LCP
Conformational dependence of intramolecular vibrational redistribution in methanol
No full textPrevious state-selected spectra of methanol in the 5ν1 OH stretch overtone region [O. V. Boyarkin, T. R. Rizzo, and D. S. Perry, J. Chem. Phys. 110 (23), 11346 (1999)] revealed structure indicating intramolecular vibrational redistribution (IVR) on three timescales. Whereas in that work, methanol in the 5ν1 bright state was prepared close to the staggered conformation, methanol in the “partially eclipsed” conformation is prepared here by double resonance excitation through a torsionally excited intermediate state. The excited molecules are detected by infrared laser assisted photofragment spectroscopy (IRLAPS). In partially eclipsed methanol, the strong coupling of the ν1 OH stretch to the ν2 CH stretch becomes weaker, but the coupling responsible for the widths of the narrowest features becomes stronger.LCP
Efficient, highly selective laser isotope separation of carbon-13
Get PDFWe recently demonstrated an original approach to highly selective laser isotope separation of carbon-13 that employs vibrational overtone pre-excitation of CF3 H together with infrared multiphoton dissociation [O.V. Boyarkin, M. Kowalczyk, T.R. Rizzo, J. Chem. Phys. 118, 93 (2003)]. The practical implementation of this approach was complicated by the long absorption path length needed for the overtone excitation laser beam. In the present work, we employ a low overtone level for the pre-excitation that shortens this pathway, facilitating engineering of the process. We propose an optimal configuration of the isotope separation scheme and consider a realistic example of a separation unit for isotopic enrichment of carbon-13 to 94–98%. The photon energy expenditure of 97 eV per separated atom is much lower than that of the current commercial laser technology, making this process economically feasible.LCPMNational Licence
OVERTONE AND COMBINATION BAND SPECTROSCOPY OF JET COOLED METHANOL
No full text[1] H.L. Fang, D.M. Meister, R.L. Swofford, J. Phys. Chem. 88, 405-409 (1984). [2] O.V. Boyarkin, L. Lubich, R.D.F. Settle, D.S. Perry, T.R. Rizzo, J. Chem. Phys. 107, 8409-8422 (1997).Author Institution: Lab. de Chimie Physique Mol\'eculaire, INSTITUT DE CHIMIE PHYSIQUE MOLECULAIRE; Lab. de Chimie Physique Mol\'eculaire, UNIVERSITY OF AKRON; DEPARTMENT OF CHEMISTRY, UNIVERSITY OF AKRONOvertone spectra of jet-cooled methanol have been recorded from 5,000 to using Infrared Laser Assisted Photofragment Spectroscopy (IRLAPS) for the detection of the vibrationally excited molecules. In addition to the OH stretch overtones , the major components of the spectra are the overtones of the CH stretch (up to ) as well as combinations of the OH stretch with the CO stretch , the COH bend , and both . These data, together with photoacoustic data [1] up to and previously reported IRLAPS data [2] up to have been fit to an anharmonic Hamiltonian. In this Hamiltonian, the CH stretch vibrations are treated as a pair of local modes, and for and higher. The other modes are treated as the usual normal vibrations
Physics of Atomic Nuclei V. 64, I. 11
No full textPhysics of Atomic Nuclei -- November 2001
Volume 64, Issue 11, pp. 1901-2057
NUCLEI
Experiment
Excitation of Isomeric 1h11/2 States in Nuclear Reactions Induced by gamma Rays and Neutrons and in Beta Decay
A. G. Belov, Yu. P. Gangrsky, L. M. Melnikova, V. Yu. Ponomarev, N. Tsoneva, Ch. Stoyanov, A. Tonchev, and N. Balabanov
pp. 1901-1908 Full Text: PDF (207 kB)
Theory
Correlation Features of the Reaction 9Be(d, pgamma)10Be at Ed = 15.3 MeV and Structure of the 10Be Nucleus
N. S. Zelenskaya, A. V. Ignatenko, V. M. Lebedev, N. V. Orlova, and A. V. Spassky
pp. 1909-1916 Full Text: PDF (228 kB)
Analysis of Elastic and Inelastic Hadron Scattering on 6, 7Li Nuclei within Diffraction Theory
M. A. Zhusupov and E. T. Ibraeva
pp. 1917-1930 Full Text: PDF (344 kB)
Antikaon Production and Medium Effects in Proton–Nucleus Reactions at Subthreshold Beam Energies
E. Ya. Paryev
pp. 1931-1947 Full Text: PDF (343 kB)
ELEMENTARY PARTICLES AND FIELDS
Experiment
Status of an Experiment Aimed at Laboratory Searches for the Electron-Antineutrino Magnetic Moment at a Level of µnu <= 3 ×10–12µB
B. S. Neganov, V. N. Trofimov, A. A. Yukhimchuk, L. N. Bogdanova, A. G. Beda, and A. S. Starostin
pp. 1948-1954 Full Text: PDF (275 kB)
Experimental Value of GA/GV from a Measurement of Both P-Odd Correlations in Free-Neutron Decay
Yu. A. Mostovoi, I. A. Kuznetsov, V. A. Solovei, A. P. Serebrov, I. V. Stepanenko, T. K. Baranova, A. V. Vasiliev, Yu. P. Rudnev, B. G. Yerozolimsky, M. S. Dewey, F. Wietfeldt, O. Zimmer, and V. V. Nesvizhevsky
pp. 1955-1960 Full Text: PDF (152 kB)
Measurement of the Tensor Analyzing Power Ayy in the Inelastic Scattering of 4.5-GeV/c Deuterons on Beryllium at an Angle of 80 mrad
L. S. Azhgirey, V. V. Arkhipov, S. V. Afanasiev, V. K. Bondarev, V. N. Zhmyrov, L. S. Zolin, V. I. Ivanov, A. Yu. Isupov, A. A. Kartamyshev, V. A. Kashirin, V. I. Kolesnikov, V. A. Kuznetsov, V. P. Ladygin, N. B. Ladygina, A. G. Litvinenko, S. G. Reznikov, P. A. Rukoyatkin, A. Yu. Semenov, I. A. Semenova, G. D. Stoletov, G. Filipov, and A. N. Khrenov
pp. 1961-1970 Full Text: PDF (304 kB)
Theory
Solar Neutrinos in Models Involving an Extended Higgs Sector
O. M. Boyarkin and T. I. Bakanova
pp. 1971-1987 Full Text: PDF (360 kB)
Structure Function F2p(x, Q2) at Small x within the Generalized Regge Eikonal Approach
V. A. Petrov and A. V. Prokudin
pp. 1988-1994 Full Text: PDF (371 kB)
Comparison of the kT-Factorization Approach and the QCD Parton Model for Charm and Beauty Hadroproduction
M. G. Ryskin, Yu. M. Shabelski, and A. G. Shuvaev
pp. 1995-2005 Full Text: PDF (275 kB)
Strong Decays of a Scalar Glueball in a Scale-Invariant Chiral Quark Model
M. K. Volkov and V. L. Yudichev
pp. 2006-2019 Full Text: PDF (286 kB)
Gluon Cluster Solution in Effective Yang–Mills Theory
O. V. Pavlovskii
pp. 2020-2026 Full Text: PDF (174 kB)
Production of P-Wave Charmonium States in Two-Particle Decays of Bc Mesons
V. A. Saleev
pp. 2027-2031 Full Text: PDF (154 kB)
Relativistically Invariant Method for Constructing the One- and the Two-Parton Density Matrix
A. V. Shchelkachev
pp. 2032-2036 Full Text: PDF (155 kB)
Effect of Parton Shadowing on the Distributions of Global Observables
P. I. Zarubin, M. V. Savina, and S. V. Shmatov
pp. 2037-2042 Full Text: PDF (197 kB)
Collisions of Domain Walls in a Supersymmetric Model
V. A. Gani and A. E. Kudryavtsev
pp. 2043-2050 Full Text: PDF (194 kB)
Phase Structure of the Nambu–Jona-Lasinio Model in a Constant Electromagnetic Field in d-Dimensional Curved Spacetime
Yu. I. Shil'nov and V. V. Chitov
pp. 2051-2057 Full Text: PDF (191 kB)Archived web conten
Review of Satellite Data Sources with Emphasis on Transportation Domain
No full textPředmětem mé bakalářské práce ?Rešerše datových zdrojů satelitních dat s důrazem na aplikace v dopravě? je popsat a zjednodušit přístup k satelitním datům všem možným uživatelům, která jsou na ČVUT nově dostupné prostřednictvím systému EUMETCast. Dále má tato práce za cíl osvětlit čtenářům, jak se dané zdroje satelitních dat již využívají ve světě a také jakým způsobem lze dané produkty satelitního systému využít v dopravě. Záměrem této práce je také poukázat na přínos a užitečnost tohoto zdroje dat pro Fakultu dopravní ČVUT.The subject of bachelor thesis "Review of satellite data sources with emphasis on transportation domain" is to describe and to simplify the access to satellite data, which are on ČVUT newly available through system EUMETCast, to all users. Furthermore to describe how are the data sources used in all over the world and how to use them in traffic. Its purpose is also to refer the benefits and usefulness of this system on ČVUT Faculty of traffic
Method of calculation of a thermolysis and friction of a turbulent disperse flow in nozzles
No full textIsotopically selective collisional vibrational energy transfer in CF3H
No full textWe investigate here the mechanism of collisionally-enhanced isotopic selectivity observed in infrared multiple photon dissociation (IRMPD) of vibrationally pre-excited CF3H by Boyarkin et al. (J. Chem. Phys. 118, 93 (2003)). For both the carbon-12 and carbon-13 isotopic species we measure the dependence of the IRMPD yield on the time-delay between the pre-excitation and the dissociation pulses at different dissociation frequencies as well as its dependence on the initial isotopic composition of the sample. The results reveal that the collisonal increase in isotopic selectivity originates not only from that of IRMPD itself, but also from the isotopic selectivity of vibrational energy transfer, with the latter making the major contribution under our experimental conditions. We suggest that the observed isotopic selectivity in collisional energy transfer arises from the difference in overlap between the absorption spectrum of the ν5 mode in the 12CF3H acceptor molecule with emission spectra of the same mode in the two isotopically different donors. Understanding the origin of this collisional effect has important implications for optimization of laser isotope separation processes.LCP
Physics of Atomic Nuclei V. 64, I. 11
No full textleave(s) : ill; 28 cm.Physics of Atomic Nuclei -- November 2001
Volume 64, Issue 11, pp. 1901-2057
NUCLEI
Experiment
Excitation of Isomeric 1h11/2 States in Nuclear Reactions Induced by gamma Rays and Neutrons and in Beta Decay
A. G. Belov, Yu. P. Gangrsky, L. M. Melnikova, V. Yu. Ponomarev, N. Tsoneva, Ch. Stoyanov, A. Tonchev, and N. Balabanov
pp. 1901-1908 Full Text: PDF (207 kB)
Theory
Correlation Features of the Reaction 9Be(d, pgamma)10Be at Ed = 15.3 MeV and Structure of the 10Be Nucleus
N. S. Zelenskaya, A. V. Ignatenko, V. M. Lebedev, N. V. Orlova, and A. V. Spassky
pp. 1909-1916 Full Text: PDF (228 kB)
Analysis of Elastic and Inelastic Hadron Scattering on 6, 7Li Nuclei within Diffraction Theory
M. A. Zhusupov and E. T. Ibraeva
pp. 1917-1930 Full Text: PDF (344 kB)
Antikaon Production and Medium Effects in Proton���Nucleus Reactions at Subthreshold Beam Energies
E. Ya. Paryev
pp. 1931-1947 Full Text: PDF (343 kB)
ELEMENTARY PARTICLES AND FIELDS
Experiment
Status of an Experiment Aimed at Laboratory Searches for the Electron-Antineutrino Magnetic Moment at a Level of ��nu <= 3 �10���12��B
B. S. Neganov, V. N. Trofimov, A. A. Yukhimchuk, L. N. Bogdanova, A. G. Beda, and A. S. Starostin
pp. 1948-1954 Full Text: PDF (275 kB)
Experimental Value of GA/GV from a Measurement of Both P-Odd Correlations in Free-Neutron Decay
Yu. A. Mostovoi, I. A. Kuznetsov, V. A. Solovei, A. P. Serebrov, I. V. Stepanenko, T. K. Baranova, A. V. Vasiliev, Yu. P. Rudnev, B. G. Yerozolimsky, M. S. Dewey, F. Wietfeldt, O. Zimmer, and V. V. Nesvizhevsky
pp. 1955-1960 Full Text: PDF (152 kB)
Measurement of the Tensor Analyzing Power Ayy in the Inelastic Scattering of 4.5-GeV/c Deuterons on Beryllium at an Angle of 80 mrad
L. S. Azhgirey, V. V. Arkhipov, S. V. Afanasiev, V. K. Bondarev, V. N. Zhmyrov, L. S. Zolin, V. I. Ivanov, A. Yu. Isupov, A. A. Kartamyshev, V. A. Kashirin, V. I. Kolesnikov, V. A. Kuznetsov, V. P. Ladygin, N. B. Ladygina, A. G. Litvinenko, S. G. Reznikov, P. A. Rukoyatkin, A. Yu. Semenov, I. A. Semenova, G. D. Stoletov, G. Filipov, and A. N. Khrenov
pp. 1961-1970 Full Text: PDF (304 kB)
Theory
Solar Neutrinos in Models Involving an Extended Higgs Sector
O. M. Boyarkin and T. I. Bakanova
pp. 1971-1987 Full Text: PDF (360 kB)
Structure Function F2p(x, Q2) at Small x within the Generalized Regge Eikonal Approach
V. A. Petrov and A. V. Prokudin
pp. 1988-1994 Full Text: PDF (371 kB)
Comparison of the kT-Factorization Approach and the QCD Parton Model for Charm and Beauty Hadroproduction
M. G. Ryskin, Yu. M. Shabelski, and A. G. Shuvaev
pp. 1995-2005 Full Text: PDF (275 kB)
Strong Decays of a Scalar Glueball in a Scale-Invariant Chiral Quark Model
M. K. Volkov and V. L. Yudichev
pp. 2006-2019 Full Text: PDF (286 kB)
Gluon Cluster Solution in Effective Yang���Mills Theory
O. V. Pavlovskii
pp. 2020-2026 Full Text: PDF (174 kB)
Production of P-Wave Charmonium States in Two-Particle Decays of Bc Mesons
V. A. Saleev
pp. 2027-2031 Full Text: PDF (154 kB)
Relativistically Invariant Method for Constructing the One- and the Two-Parton Density Matrix
A. V. Shchelkachev
pp. 2032-2036 Full Text: PDF (155 kB)
Effect of Parton Shadowing on the Distributions of Global Observables
P. I. Zarubin, M. V. Savina, and S. V. Shmatov
pp. 2037-2042 Full Text: PDF (197 kB)
Collisions of Domain Walls in a Supersymmetric Model
V. A. Gani and A. E. Kudryavtsev
pp. 2043-2050 Full Text: PDF (194 kB)
Phase Structure of the Nambu���Jona-Lasinio Model in a Constant Electromagnetic Field in d-Dimensional Curved Spacetime
Yu. I. Shil'nov and V. V. Chitov
pp. 2051-2057 Full Text: PDF (191 kB)The content contained herein is maintained and curated by the Preservation Department.This record is revised and maintained by the content administrators from the Cataloging & Metadata Department
Physics of Atomic Nuclei V. 66, I. 02
No full textPhysics of Atomic Nuclei -- February 2003
Volume 66, Issue 2, pp. 203-422
NUCLEI
Theory
On the Binding of Atoms with Antiatoms
T. K. Rebane and N. D. Markovski
pp. 203-205 Full Text: PDF (124 kB)
Generation of Angular Momentum of Fission Fragments in a Cluster Model
T. M. Shneidman, G. G. Adamian, N. V. Antonenko, S. P. Ivanova, R. V. Jolos, and W. Scheid
pp. 206-217 Full Text: PDF (273 kB)
Survivability of Excited Superheavy Nuclei
A. S. Zubov, G. G. Adamian, N. V. Antonenko, S. P. Ivanova, and W. Scheid
pp. 218-232 Full Text: PDF (312 kB)
Energy Dependence of Effective Nucleon–Nucleon Interaction and Position of the Nucleon Drip Line
M. Baldo, U. Lombardo, E. E. Saperstein, and M. V. Zverev
pp. 233-246 Full Text: PDF (292 kB)
On a Microscopic Mechanism of Collisions between Extremely Light Nuclei
J. V. Mebonia, P. J. Saralidze, K. I. Sulakadze, and G. E. Skhirtladze
pp. 247-252 Full Text: PDF (180 kB)
Diffractive Dissociation of Deuterons and Exotic Nuclei 6He and 19C
M. V. Evlanov, A. M. Sokolov, and V. K. Tartakovsky
pp. 253-258 Full Text: PDF (189 kB)
Scattering of pi± Mesons on a 9Be Nucleus in the Delta33-Resonance Region
E. T. Ibraeva
pp. 259-267 Full Text: PDF (292 kB)
ELEMENTARY PARTICLES AND FIELDS
Experiment
Background of External gamma Radiation in the Proportional Counters of the SAGE Experiment
V. N. Gavrin and V. V. Gorbachev
pp. 268-273 Full Text: PDF (154 kB)
Theory
Deuteron Photodisintegration within the Bethe–Salpeter Formalism: Effects of Negative-Energy Components
K. Yu. Kazakov and D. V. Shulga
pp. 274-280 Full Text: PDF (191 kB)
Anomalous Magnetic Moment of the Muon in the Left–Right Model
G. G. Boyarkina, O. M. Boyarkin, and V. V. Makhnach
pp. 281-293 Full Text: PDF (329 kB)
Process gammagamma --> nunu-bar in a Strong Magnetic Field
A. V. Kuznetsov, N. V. Mikheev, and D. A. Rumyantsev
pp. 294-301 Full Text: PDF (219 kB)
Investigation of the Nucleon Spin in Neutrino Processes
S. I. Timoshin
pp. 302-306 Full Text: PDF (134 kB)
Leading-Particle Effects in the Spectra of Lambdac and Lambda-bar c Produced in Sigma–p, pp, and pi–p Interactions
O. I. Piskounova
pp. 307-312 Full Text: PDF (195 kB)
What New Information about the Microscopic Quark Structure of Meson–Baryon Degrees of Freedom in Nucleons Can Be Deduced from Data on Quasielastic Pion Knockout?
I. T. Obukhovsky, V. G. Neudatchin, L. L. Sviridova, and N. P. Yudin
pp. 313-322 Full Text: PDF (257 kB)
Contribution of the Hadronic Component of a Virtual Photon to the Structure Function for Charm Leptoproduction at High x and Q2
D. Yu. Golubkov and Yu. A. Golubkov
pp. 323-333 Full Text: PDF (260 kB)
Analyticity and Quark–Gluon Structure of Hadron Total Cross Sections
M. Majewski and V. A. Meshcheryakov
pp. 334-337 Full Text: PDF (128 kB)
Nonperturbative Quark Dynamics in a Baryon
Yu. A. Simonov
pp. 338-354 Full Text: PDF (322 kB)
Production of the f0(980) Resonance in the Reaction pi–p --> pi0pi0n
N. N. Achasov and G. N. Shestakov
pp. 355-361 Full Text: PDF (225 kB)
Fluctuations of Charged-Particle Multiplicities over Narrow Rapidity Intervals in pi–A Collisions at 40 GeV/c
K. G. Akhobadze, T. S. Grigalashvili, E. Sh. Ioramashvili, E. S. Mailian, M. I. Nikoladze, and L. V. Shalamberidze
pp. 362-367 Full Text: PDF (198 kB)
Theoretical Investigation of Tensor Analyzing Powers in Deuteron Fragmentation into Pions
A. Yu. Illarionov, A. G. Litvinenko, and G. I. Lykasov
pp. 368-382 Full Text: PDF (334 kB)
Analytic Calculation of Feynman Amplitudes
V. V. Andreev
pp. 383-393 Full Text: PDF (240 kB)
XXXI International Conference on the Physics of Charged-Particle Interaction with Crystals (Institute of Nuclear Physics, Moscow State University, Moscow, May 28–30, 2001)
Spectral–Angular Distributions of Radiation from Relativistic Electrons in a Thin Layer of Matter
S. P. Fomin, N. F. Shul'ga, and S. N. Shul'ga
pp. 394-397 Full Text: PDF (147 kB)
Transition Radiation from Relativistic Charged Particles Interacting with Atomic Strings in a Crystal
N. F. Shul'ga and V. V. Syshchenko
pp. 398-401 Full Text: PDF (871 kB)
Numerical Analysis of the Intensity of Parametric X-Ray Radiation under the Conditions of Strong Multiple Scattering
I. J. Dubovskaj and O. M. Lugovskaj
pp. 402-408 Full Text: PDF (177 kB)
On Parametric X-ray Radiation
V. G. Baryshevsky and O. M. Lugovskaj
pp. 409-415 Full Text: PDF (201 kB)
Approximation of Hartree–Fock Atomic Form Factors within the Shell Model
F. P. Korshunov and A. P. Lazar
pp. 416-419 Full Text: PDF (127 kB)
Parametric X-Ray Radiation Generated by 5.7-MeV Electrons in a Pyrolytic-Graphite Crystal
Yu. N. Adishev, V. N. Zabaev, V. V. Kaplin, S. V. Razin, S. R. Uglov, S. I. Kuznetsov, and Yu. P. Kunashenko
pp. 420-422 Full Text: PDF (130 kB)Archived web conten
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