143 research outputs found
Journal of Experimental and Theoretical Physics V. 101, I. 01
No full textJournal of Experimental and Theoretical Physics -- July 2005
Volume 101, Issue 1, pp. 1-195
ATOMS, MOLECULES, OPTICS
Temporal Self-Action and Compression of Intense Ultrashort Laser Pulses in Hollow Photonic-Crystal Waveguides
A. D. Bessonov, E. E. Serebryannikov, and A. M. Zheltikov
pp. 1-10 Full Text: PDF (163 kB)
Dynamics of an Extremely Short Pulse in a Stark Medium
S. O. Elyutin
pp. 11-21 Full Text: PDF (440 kB)
Stochastic Modeling of Coherent Phenomena in Strongly Inhomogeneous Media
V. L. Kuz'min, I. V. Meglinski, and D. Yu. Churmakov
pp. 22-32 Full Text: PDF (137 kB)
Multiparticle Entanglement via Resonant Interaction between Light and Atomic Ensembles
V. N. Gorbachev and A. I. Trubilko
pp. 33-43 Full Text: PDF (127 kB)
Metastable Helium Cluster He4*
V. F. Elesin, N. N. Degtyarenko, N. V. Matveev, A. I. Podlivaev, and L. A. Openov
pp. 44-55 Full Text: PDF (471 kB)
Wakefield Generation as the Mechanism behind Spectral Shift of a Short Laser Pulse
N. E. Andreev and M. V. Chegotov
pp. 56-63 Full Text: PDF (109 kB)
Sub-Poissonian Statistics of Fluorescence from a Single Atom Driven by a Continuous Wave Laser Field
I. S. Osad'ko
pp. 64-72 Full Text: PDF (102 kB)
Bremsstrahlung of Fast Charged Particles on Clusters in a Wide Spectral Range
V. A. Astapenko
pp. 73-79 Full Text: PDF (76 kB)
Vacuum Heating of Large Atomic Clusters by a Superintense Femtosecond Laser Pulse
A. V. Getz and V. P. Krainov
pp. 80-87 Full Text: PDF (107 kB)
NUCLEI, PARTICLES, FIELDS, GRAVITATION, AND ASTROPHYSICS
Energy Spectrum and Anisotropy of Cosmic Rays with E0 >= 1017 eV from Yakutsk EAS Array Data
A. V. Glushkov and M. I. Pravdin
pp. 88-97 Full Text: PDF (199 kB)
ORDER, DISORDER, AND PHASE TRANSITIONS IN CONDENSED SYSTEMS
Electron Transport, Penetration Depth, and the Upper Critical Magnetic Field in ZrB12 and MgB2
V. A. Gasparov, N. S. Sidorov, I. I. Zver'kova, S. S. Khassanov, and M. P. Kulakov
pp. 98-106 Full Text: PDF (146 kB)
ELECTRONIC PROPERTIES OF SOLIDS
Special Features of the Electric Components of Acoustic Waves in the Vicinity of Nonpiezoactive Directions in Crystals
V. I. Al'shits, V. N. Lyubimov, and A. Radowicz
pp. 107-119 Full Text: PDF (170 kB)
Effect of Coulomb Explosion on Track Formation in Metals Irradiated by Heavy Ions
A. I. Ryazanov, S. A. Pavlov, E. V. Metelkin, and A. V. Zhemerev
pp. 120-127 Full Text: PDF (105 kB)
Effect of a Cluster Structure on the Interaction of Electron and Magnetic Subsystems in LaCa(Sr)MnO Epilayers
V. D. Okunev, Z. A. Samoilenko, R. Szymczak, and S. J. Lewandowski
pp. 128-144 Full Text: PDF (291 kB)
STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS
On the Structure of the Two-Dimensional Spatially Periodic Inner Transition Layers in a Gas-Discharge Plasma
A. Ya. Voronov
pp. 145-155 Full Text: PDF (142 kB)
Mechanism of Convective Instability of a Binary Mixture
L. Kh. Ingel
pp. 156-159 Full Text: PDF (48 kB)
Shock-Wave and Plasma-Pinch Mechanisms of Galactic Cosmic-Ray Production
B. A. Trubnikov
pp. 160-168 Full Text: PDF (285 kB)
Surface Gravity Waves in Deep Fluid at Vertical Shear Flows
G. Gogoberidze, L. Samushia, G. D. Chagelishvili, J. G. Lominadze, and W. Horton
pp. 169-176 Full Text: PDF (92 kB)
Attraction Mechanism of Like-Charged Aerosol Particles in a Moving Conductive Medium
A. V. Gaponov-Grekhov, D. I. Iudin, and V. Yu. Trakhtengerts
pp. 177-185 Full Text: PDF (121 kB)
The Tube Character of Electron Drift in Condensed Inert Gases
E. B. Gordon and B. M. Smirnov
pp. 186-195 Full Text: PDF (107 kB)Archived web conten
Journal of Experimental and Theoretical Physics V. 101, I. 01
No full textdc.description[en_US]Journal of Experimental and Theoretical Physics -- July 2005
Volume 101, Issue 1, pp. 1-195
ATOMS, MOLECULES, OPTICS
Temporal Self-Action and Compression of Intense Ultrashort Laser Pulses in Hollow Photonic-Crystal Waveguides
A. D. Bessonov, E. E. Serebryannikov, and A. M. Zheltikov
pp. 1-10 Full Text: PDF (163 kB)
Dynamics of an Extremely Short Pulse in a Stark Medium
S. O. Elyutin
pp. 11-21 Full Text: PDF (440 kB)
Stochastic Modeling of Coherent Phenomena in Strongly Inhomogeneous Media
V. L. Kuz'min, I. V. Meglinski, and D. Yu. Churmakov
pp. 22-32 Full Text: PDF (137 kB)
Multiparticle Entanglement via Resonant Interaction between Light and Atomic Ensembles
V. N. Gorbachev and A. I. Trubilko
pp. 33-43 Full Text: PDF (127 kB)
Metastable Helium Cluster He4*
V. F. Elesin, N. N. Degtyarenko, N. V. Matveev, A. I. Podlivaev, and L. A. Openov
pp. 44-55 Full Text: PDF (471 kB)
Wakefield Generation as the Mechanism behind Spectral Shift of a Short Laser Pulse
N. E. Andreev and M. V. Chegotov
pp. 56-63 Full Text: PDF (109 kB)
Sub-Poissonian Statistics of Fluorescence from a Single Atom Driven by a Continuous Wave Laser Field
I. S. Osad'ko
pp. 64-72 Full Text: PDF (102 kB)
Bremsstrahlung of Fast Charged Particles on Clusters in a Wide Spectral Range
V. A. Astapenko
pp. 73-79 Full Text: PDF (76 kB)
Vacuum Heating of Large Atomic Clusters by a Superintense Femtosecond Laser Pulse
A. V. Getz and V. P. Krainov
pp. 80-87 Full Text: PDF (107 kB)
NUCLEI, PARTICLES, FIELDS, GRAVITATION, AND ASTROPHYSICS
Energy Spectrum and Anisotropy of Cosmic Rays with E0 >= 1017 eV from Yakutsk EAS Array Data
A. V. Glushkov and M. I. Pravdin
pp. 88-97 Full Text: PDF (199 kB)
ORDER, DISORDER, AND PHASE TRANSITIONS IN CONDENSED SYSTEMS
Electron Transport, Penetration Depth, and the Upper Critical Magnetic Field in ZrB12 and MgB2
V. A. Gasparov, N. S. Sidorov, I. I. Zver'kova, S. S. Khassanov, and M. P. Kulakov
pp. 98-106 Full Text: PDF (146 kB)
ELECTRONIC PROPERTIES OF SOLIDS
Special Features of the Electric Components of Acoustic Waves in the Vicinity of Nonpiezoactive Directions in Crystals
V. I. Al'shits, V. N. Lyubimov, and A. Radowicz
pp. 107-119 Full Text: PDF (170 kB)
Effect of Coulomb Explosion on Track Formation in Metals Irradiated by Heavy Ions
A. I. Ryazanov, S. A. Pavlov, E. V. Metelkin, and A. V. Zhemerev
pp. 120-127 Full Text: PDF (105 kB)
Effect of a Cluster Structure on the Interaction of Electron and Magnetic Subsystems in LaCa(Sr)MnO Epilayers
V. D. Okunev, Z. A. Samoilenko, R. Szymczak, and S. J. Lewandowski
pp. 128-144 Full Text: PDF (291 kB)
STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS
On the Structure of the Two-Dimensional Spatially Periodic Inner Transition Layers in a Gas-Discharge Plasma
A. Ya. Voronov
pp. 145-155 Full Text: PDF (142 kB)
Mechanism of Convective Instability of a Binary Mixture
L. Kh. Ingel
pp. 156-159 Full Text: PDF (48 kB)
Shock-Wave and Plasma-Pinch Mechanisms of Galactic Cosmic-Ray Production
B. A. Trubnikov
pp. 160-168 Full Text: PDF (285 kB)
Surface Gravity Waves in Deep Fluid at Vertical Shear Flows
G. Gogoberidze, L. Samushia, G. D. Chagelishvili, J. G. Lominadze, and W. Horton
pp. 169-176 Full Text: PDF (92 kB)
Attraction Mechanism of Like-Charged Aerosol Particles in a Moving Conductive Medium
A. V. Gaponov-Grekhov, D. I. Iudin, and V. Yu. Trakhtengerts
pp. 177-185 Full Text: PDF (121 kB)
The Tube Character of Electron Drift in Condensed Inert Gases
E. B. Gordon and B. M. Smirnov
pp. 186-195 Full Text: PDF (107 kB)dc.description.contributor[en_US]dc.description.contributor[en_US
Crystallography Reports V. 49, I. 04
No full textdc.description[en_US]Crystallography Reports -- July 2004
Volume 49, Issue 4, pp. 527-704
CRYSTALLOGRAPHIC SYMMETRY
A Quasi-Lattice Based on a Cuboctahedron. 1. Projection Method
Y. Watanabe, T. Soma, and M. Ito
pp. 527-536 Full Text: PDF (401 kB)
Quasicrystal as a Locally Deformed Crystal Structure
V. A. Chizhikov
pp. 537-546 Full Text: PDF (564 kB)
THEORY OF CRYSTAL STRUCTURES
Intensity and Width of Bragg Reflections from Imperfect Icosahedral Quasicrystals Obtained by Simulating Atomic Growth
V. E. Dmitrienko, V. A. Chizhikov, S. B. Astaf'ev, and M. Kl�man
pp. 547-552 Full Text: PDF (97 kB)
Combinatorial Analysis of Crystals
N. L. Smirnova
pp. 553-558 Full Text: PDF (60 kB)
CRYSTAL CHEMISTRY
Principles and Criteria for the Choice and Refinement of Structural Models in Inorganic Crystal Chemistry
V. S. Urusov
pp. 559-572 Full Text: PDF (246 kB)
DIFFRACTION AND SCATTERING OF IONIZING RADIATION
X-ray Study of the Structure of Multicomponent Glasses Based on Mining-Industry Waste
R. N. Osaulenko, E. A. Repnikova, V. N. Makarov, and O. V. Suvorova
pp. 573-578 Full Text: PDF (89 kB)
Analysis of Chemical Bonding in Zn3P2 Crystals from X-ray Diffraction Data
I. E. Zanin, K. B. Aleinikova, M. Yu. Antipin, and M. M. Afanas'ev
pp. 579-584 Full Text: PDF (164 kB)
STRUCTURE OF INORGANIC COMPOUNDS
Crystal Structure and Microtwinning of Monoclinic La3SbZn3Ge2O14 Crystals of the Langasite Family
B. A. Maksimov, S. S. Kazantsev, V. N. Molchanov, I. A. Verin, and B. V. Mill
pp. 585-590 Full Text: PDF (133 kB)
Growth and Defect Crystal Structure of CdF2 and Nonstoichiometric Cd1 ��� xRxF2 + x Phases (R = Rare Earth Elements and In). 2. Methods of Structure Refinement of Cd0.90R0.10F2.10 Phases Using the Example of Cd0.90Tb0.10F2.10. Structure of Nanodimensional Clusters in Cd0.90Tb0.10F2.10 Crystal
E. A. Ryzhova, V. N. Molchanov, A.A. Artyukhov, V. I. Simonov, and B. P. Sobolev
pp. 591-597 Full Text: PDF (135 kB)
Synthesis and X-ray Diffraction Study of Complex Neptunium(VI) Potassium Chromate K2[(NpO2)2(CrO4)3(H2O)] �� 3H2O
M. S. Grigor'ev, A. M. Fedoseev, N. A. Budantseva, A. A. Bessonov, and J.-C. Krupa
pp. 598-602 Full Text: PDF (84 kB)
New Ln[B6O9(OH)3] Borates (Ln = Sm���Lu): Structure, Properties, and Structural Relation to Cationic Li4[B7O12]Cl Conductors (Li-Boracites)
E. L. Belokoneva, A. G. Ivanova, S. Yu. Stefanovich, O. V. Dimitrova, and V. S. Kurazhkovskaya
pp. 603-613 Full Text: PDF (511 kB)
Synthesis and Investigation of the New Phosphates K2LnZr(PO4)3 (Ln = Ce���Yb, Y) with Langbeinite Structure
I. G. Trubach, A. I. Beskrovnyi, A. I. Orlova, V. A. Orlova, and V. S. Kurazhkovskaya
pp. 614-618 Full Text: PDF (76 kB)
Specific Features of Structure and Ferroelectric Properties of BaTiO3 Phases
T. A. Sidorov
pp. 619-625 Full Text: PDF (81 kB)
High-Pressure Synthesis and Magnetic Properties of Bi0.5D0.5MnO3 (D = Pb, Ba) Solid Solutions
I. O. Troyanchuk, M. K. Karpuk, O. S. Mantytskaya, and H. Szymczak
pp. 626-630 Full Text: PDF (78 kB)
Structure of Amorphous Oxide Al2O3: Results of a Molecular-Dynamics Experiment
M. E. Prokhorskii, A. D. Fofanov, L. A. Aleshina, and E. A. Nikitina
pp. 631-634 Full Text: PDF (81 kB)
Crystal Structure of a New Representative of the Cancrinite Group with a 12-Layer Stacking Sequence of Tetrahedral Rings
K. A. Rozenberg, A. N. Sapozhnikov, R. K. Rastsvetaeva, N. B. Bolotina, and A. A. Kashaev
pp. 635-642 Full Text: PDF (188 kB)
STRUCTURE OF ORGANIC COMPOUNDS
Crystal Structure of SrFe(EDTA)Cl �� 5H2O
A. S. Antsyshkina, G. G. Sadikov, V. S. Sergienko, and A. L. Poznyak
pp. 643-648 Full Text: PDF (137 kB)
Synthesis and Crystal Structure of trans-Tetrachloro(C,C-Dichloro-C-Phenyl-Methyl-Nitrido)(phenylnitrilo)tungsten(VI), trans-[WCl4(NCCl2Ph)(NCPh)]
A. E. Sinyakov, G. G. Aleksandrov, and N. A. Ovchinnikova
pp. 649-652 Full Text: PDF (57 kB)
LATTICE DYNAMICS AND PHASE TRANSITIONS
Neutron Studies of the Structure and Dynamics of Rb1 ��� x(NH4)xI Mixed Crystals
L. S. Smirnov, I. Natkaniec, B. N. Savenko, D. P. Kozlenko, S. E. Kichanov, M. Dlouha, S. Vratislav, M. L. Martinez-Sarrion, L. Mestres, M. Herraiz, and L. A. Shuvalov
pp. 653-659 Full Text: PDF (115 kB)
Raman Spectroscopy of the Ferroelectric���Antiferroelectric Phase Transition in Li0.12Na0.88Ta0.2Nb0.8O3 Ceramic Solid Solution
N. V. Sidorov, M. N. Palatnikov, and N. A. Golubyatnik
pp. 660-663 Full Text: PDF (66 kB)
Phase Transitions in Bubble Domain Structures upon Spin Reorientation near the Compensation Point in Ferrite-Garnet Films
Yu. A. Mamalui, Yu. A. Siryuk, and A. V. Bezus
pp. 664-667 Full Text: PDF (234 kB)
PHYSICAL PROPERTIES OF CRYSTALS
Magnetoplastic Effects in Crystals in the Context of Spin-Dependent Chemical Kinetics
Yu. I. Golovin
pp. 668-675 Full Text: PDF (226 kB)
Study of Ion Transport in Li2ZrO3 Solid Electrolytes with Different Lithium Isotope Ratios
M. I. Pantyukhina, V. P. Obrosov, A. P. Stepanov, V. I. Voronin, and N. N. Batalov
pp. 676-679 Full Text: PDF (52 kB)
LIQUID CRYSTALS
Liquid Crystal Acoustics: A Modern View of the Problem
O. A. Kapustina
pp. 680-692 Full Text: PDF (182 kB)
CRYSTAL GROWTH
Me2O���P2O5���H2O Solubility Phase Diagrams and Growth of MeH2PO4 Single Crystals (Me = Li, Na, K, Rb, Cs, NH4)
L. V. Soboleva and A. E. Voloshin
pp. 693-697 Full Text: PDF (78 kB)
JUBILEES
Aleksandr Borisovich Gil'varg (On the Occasion of His 90th Birthday)
p. 698 Full Text: PDF (95 kB)
Khachik Saakovich Bagdasarov (on the Occasion of His 75th Birthday)
pp. 699-700 Full Text: PDF (128 kB)
Boris Viktorovich Mchedlishvili (On the Occasion of His 60th Birthday)
pp. 701-702 Full Text: PDF (100 kB)
MEMORIAL DATA
On the Occasion of the 100th Birthday of Professor A. P. Kapustin
O. A. Kapustina
pp. 703-704 Full Text: PDF (171 kB)dc.description.contributor[en_US]dc.description.contributor[en_US
Crystallography Reports V. 49, I. 04
No full textCrystallography Reports -- July 2004
Volume 49, Issue 4, pp. 527-704
CRYSTALLOGRAPHIC SYMMETRY
A Quasi-Lattice Based on a Cuboctahedron. 1. Projection Method
Y. Watanabe, T. Soma, and M. Ito
pp. 527-536 Full Text: PDF (401 kB)
Quasicrystal as a Locally Deformed Crystal Structure
V. A. Chizhikov
pp. 537-546 Full Text: PDF (564 kB)
THEORY OF CRYSTAL STRUCTURES
Intensity and Width of Bragg Reflections from Imperfect Icosahedral Quasicrystals Obtained by Simulating Atomic Growth
V. E. Dmitrienko, V. A. Chizhikov, S. B. Astaf'ev, and M. Kléman
pp. 547-552 Full Text: PDF (97 kB)
Combinatorial Analysis of Crystals
N. L. Smirnova
pp. 553-558 Full Text: PDF (60 kB)
CRYSTAL CHEMISTRY
Principles and Criteria for the Choice and Refinement of Structural Models in Inorganic Crystal Chemistry
V. S. Urusov
pp. 559-572 Full Text: PDF (246 kB)
DIFFRACTION AND SCATTERING OF IONIZING RADIATION
X-ray Study of the Structure of Multicomponent Glasses Based on Mining-Industry Waste
R. N. Osaulenko, E. A. Repnikova, V. N. Makarov, and O. V. Suvorova
pp. 573-578 Full Text: PDF (89 kB)
Analysis of Chemical Bonding in Zn3P2 Crystals from X-ray Diffraction Data
I. E. Zanin, K. B. Aleinikova, M. Yu. Antipin, and M. M. Afanas'ev
pp. 579-584 Full Text: PDF (164 kB)
STRUCTURE OF INORGANIC COMPOUNDS
Crystal Structure and Microtwinning of Monoclinic La3SbZn3Ge2O14 Crystals of the Langasite Family
B. A. Maksimov, S. S. Kazantsev, V. N. Molchanov, I. A. Verin, and B. V. Mill
pp. 585-590 Full Text: PDF (133 kB)
Growth and Defect Crystal Structure of CdF2 and Nonstoichiometric Cd1 – xRxF2 + x Phases (R = Rare Earth Elements and In). 2. Methods of Structure Refinement of Cd0.90R0.10F2.10 Phases Using the Example of Cd0.90Tb0.10F2.10. Structure of Nanodimensional Clusters in Cd0.90Tb0.10F2.10 Crystal
E. A. Ryzhova, V. N. Molchanov, A.A. Artyukhov, V. I. Simonov, and B. P. Sobolev
pp. 591-597 Full Text: PDF (135 kB)
Synthesis and X-ray Diffraction Study of Complex Neptunium(VI) Potassium Chromate K2[(NpO2)2(CrO4)3(H2O)] · 3H2O
M. S. Grigor'ev, A. M. Fedoseev, N. A. Budantseva, A. A. Bessonov, and J.-C. Krupa
pp. 598-602 Full Text: PDF (84 kB)
New Ln[B6O9(OH)3] Borates (Ln = Sm–Lu): Structure, Properties, and Structural Relation to Cationic Li4[B7O12]Cl Conductors (Li-Boracites)
E. L. Belokoneva, A. G. Ivanova, S. Yu. Stefanovich, O. V. Dimitrova, and V. S. Kurazhkovskaya
pp. 603-613 Full Text: PDF (511 kB)
Synthesis and Investigation of the New Phosphates K2LnZr(PO4)3 (Ln = Ce–Yb, Y) with Langbeinite Structure
I. G. Trubach, A. I. Beskrovnyi, A. I. Orlova, V. A. Orlova, and V. S. Kurazhkovskaya
pp. 614-618 Full Text: PDF (76 kB)
Specific Features of Structure and Ferroelectric Properties of BaTiO3 Phases
T. A. Sidorov
pp. 619-625 Full Text: PDF (81 kB)
High-Pressure Synthesis and Magnetic Properties of Bi0.5D0.5MnO3 (D = Pb, Ba) Solid Solutions
I. O. Troyanchuk, M. K. Karpuk, O. S. Mantytskaya, and H. Szymczak
pp. 626-630 Full Text: PDF (78 kB)
Structure of Amorphous Oxide Al2O3: Results of a Molecular-Dynamics Experiment
M. E. Prokhorskii, A. D. Fofanov, L. A. Aleshina, and E. A. Nikitina
pp. 631-634 Full Text: PDF (81 kB)
Crystal Structure of a New Representative of the Cancrinite Group with a 12-Layer Stacking Sequence of Tetrahedral Rings
K. A. Rozenberg, A. N. Sapozhnikov, R. K. Rastsvetaeva, N. B. Bolotina, and A. A. Kashaev
pp. 635-642 Full Text: PDF (188 kB)
STRUCTURE OF ORGANIC COMPOUNDS
Crystal Structure of SrFe(EDTA)Cl · 5H2O
A. S. Antsyshkina, G. G. Sadikov, V. S. Sergienko, and A. L. Poznyak
pp. 643-648 Full Text: PDF (137 kB)
Synthesis and Crystal Structure of trans-Tetrachloro(C,C-Dichloro-C-Phenyl-Methyl-Nitrido)(phenylnitrilo)tungsten(VI), trans-[WCl4(NCCl2Ph)(NCPh)]
A. E. Sinyakov, G. G. Aleksandrov, and N. A. Ovchinnikova
pp. 649-652 Full Text: PDF (57 kB)
LATTICE DYNAMICS AND PHASE TRANSITIONS
Neutron Studies of the Structure and Dynamics of Rb1 – x(NH4)xI Mixed Crystals
L. S. Smirnov, I. Natkaniec, B. N. Savenko, D. P. Kozlenko, S. E. Kichanov, M. Dlouha, S. Vratislav, M. L. Martinez-Sarrion, L. Mestres, M. Herraiz, and L. A. Shuvalov
pp. 653-659 Full Text: PDF (115 kB)
Raman Spectroscopy of the Ferroelectric–Antiferroelectric Phase Transition in Li0.12Na0.88Ta0.2Nb0.8O3 Ceramic Solid Solution
N. V. Sidorov, M. N. Palatnikov, and N. A. Golubyatnik
pp. 660-663 Full Text: PDF (66 kB)
Phase Transitions in Bubble Domain Structures upon Spin Reorientation near the Compensation Point in Ferrite-Garnet Films
Yu. A. Mamalui, Yu. A. Siryuk, and A. V. Bezus
pp. 664-667 Full Text: PDF (234 kB)
PHYSICAL PROPERTIES OF CRYSTALS
Magnetoplastic Effects in Crystals in the Context of Spin-Dependent Chemical Kinetics
Yu. I. Golovin
pp. 668-675 Full Text: PDF (226 kB)
Study of Ion Transport in Li2ZrO3 Solid Electrolytes with Different Lithium Isotope Ratios
M. I. Pantyukhina, V. P. Obrosov, A. P. Stepanov, V. I. Voronin, and N. N. Batalov
pp. 676-679 Full Text: PDF (52 kB)
LIQUID CRYSTALS
Liquid Crystal Acoustics: A Modern View of the Problem
O. A. Kapustina
pp. 680-692 Full Text: PDF (182 kB)
CRYSTAL GROWTH
Me2O–P2O5–H2O Solubility Phase Diagrams and Growth of MeH2PO4 Single Crystals (Me = Li, Na, K, Rb, Cs, NH4)
L. V. Soboleva and A. E. Voloshin
pp. 693-697 Full Text: PDF (78 kB)
JUBILEES
Aleksandr Borisovich Gil'varg (On the Occasion of His 90th Birthday)
p. 698 Full Text: PDF (95 kB)
Khachik Saakovich Bagdasarov (on the Occasion of His 75th Birthday)
pp. 699-700 Full Text: PDF (128 kB)
Boris Viktorovich Mchedlishvili (On the Occasion of His 60th Birthday)
pp. 701-702 Full Text: PDF (100 kB)
MEMORIAL DATA
On the Occasion of the 100th Birthday of Professor A. P. Kapustin
O. A. Kapustina
pp. 703-704 Full Text: PDF (171 kB)Archived web conten
Microfocus X-ray Tubes
No full textIntroduction. X-ray inspection plays a unique role among all nondestructive testing methods for products and materials due to sufficiently high resolution and high penetrability. The present study is designed to consider the key features of microfocus X-ray sources, their areas of application, and main technical characteristics.Aim. The paper aims to systematize information and review modern X-ray radiation sources for the implementation of microfocus radiography.Materials and methods. The main designs of microfocus X-ray tubes (soldered and demountable) were considered relying on the experience of the St Petersburg State Electrotechnical University in developing and operating such equipment, as well as the experience and open-access publications of foreign researchers and developers. Data collected by leading research teams over the last ten years were analyzed.Results. The paper presents design features for each main type of microfocus X-ray tubes – soldered and demountable. All key structural elements are considered: an anode assembly, a cathode assembly, and a focusing system. The influence of anode target material on the X-ray tube radiation spectrum is shown. An original design of a liquid-anode microfocus X-ray tube is described to demonstrate its key features and advantages. In addition, the paper gives an overview of cathodes used in microfocus X-ray tubes (tungsten cathode and lanthanum hexaboride cathode), as well as providing a detailed description of calculations performed for focusing systems. Finally, the designs of modern X-ray tubes are presented.Conclusion. Modern X-ray tubes are high-tech products that allow for high-resolution research of various objects. The main advantage of testing performed with the use of X-ray tubes consists in high resolution (micron and submicron). The X-ray images of test objects used to determine their spatial resolution are given, which clearly illustrate the vast possibilities of this technology. In addition, ways to improve microfocus X-ray tubes are briefly discussed. The considered materials can be useful in selecting a nondestructive testing tool, as well as in developing and creating X-ray systems on the basis of microfocus X-ray tubes
Микрофокусные рентгеновские трубки
No full textIntroduction. X-ray inspection plays a unique role among all nondestructive testing methods for products and materials due to sufficiently high resolution and high penetrability. The present study is designed to consider the key features of microfocus X-ray sources, their areas of application, and main technical characteristics.Aim. The paper aims to systematize information and review modern X-ray radiation sources for the implementation of microfocus radiography.Materials and methods. The main designs of microfocus X-ray tubes (soldered and demountable) were considered relying on the experience of the St Petersburg State Electrotechnical University in developing and operating such equipment, as well as the experience and open-access publications of foreign researchers and developers. Data collected by leading research teams over the last ten years were analyzed.Results. The paper presents design features for each main type of microfocus X-ray tubes – soldered and demountable. All key structural elements are considered: an anode assembly, a cathode assembly, and a focusing system. The influence of anode target material on the X-ray tube radiation spectrum is shown. An original design of a liquid-anode microfocus X-ray tube is described to demonstrate its key features and advantages. In addition, the paper gives an overview of cathodes used in microfocus X-ray tubes (tungsten cathode and lanthanum hexaboride cathode), as well as providing a detailed description of calculations performed for focusing systems. Finally, the designs of modern X-ray tubes are presented.Conclusion. Modern X-ray tubes are high-tech products that allow for high-resolution research of various objects. The main advantage of testing performed with the use of X-ray tubes consists in high resolution (micron and submicron). The X-ray images of test objects used to determine their spatial resolution are given, which clearly illustrate the vast possibilities of this technology. In addition, ways to improve microfocus X-ray tubes are briefly discussed. The considered materials can be useful in selecting a nondestructive testing tool, as well as in developing and creating X-ray systems on the basis of microfocus X-ray tubes.Введение. Среди всех методов неразрушающего контроля изделий и материалов рентгеновский имеет особое значение за счет достаточно большого разрешения и в то же время высокой проникающей способности.Цель работы. Рассмотрение ключевых особенностей микрофокусных источников рентгеновского излучения, областей их применения и основных технических характеристик.Материалы и методы. При рассмотрении основных типов конструкции микрофокусных рентгеновских трубок (отпаяной и разборной) использовался опыт разработки и эксплуатации описываемого оборудования на базе Санкт-Петербургского государственного электротехнического университета «ЛЭТИ», а также опыт и публикации зарубежных исследователей и разработчиков из открытых источников. Анализировалась информация ведущих научно-исследовательских коллективов за последние 10 лет.Результаты. Приведены особенности конструкции каждого типа. Рассмотрены все основные конструктивные узлы: анодный узел, катодный узел, фокусирующая система. Показано влияние материала мишени анода на спектр излучения рентгеновской трубки. Приведена оригинальная конструкция микрофокусной рентгеновской трубки с жидким анодом, показаны ее ключевые особенности и преимущества. Даны общие представления о используемых в микрофокусных рентгеновских трубках катодах (вольфрамовый катод и катод из гексаборида лантана), подробно проиллюстрированы особенности расчетов фокусирующих систем. Представлены конструкции современных рентгеновских трубок.Заключение. Отмечено, что современные рентгеновские трубки являются высокотехнологичными изделиями, которые позволяют проводить исследования широкой номенклатуры объектов с высоким разрешением. Основным преимуществом контроля с применением микрофокусных рентгеновских трубок является высокая разрешающая способность (микронная и субмикронная). Приведены рентгенограммы тест-объектов, используемых для определения их пространственного разрешения, наглядно иллюстрирующие широкие возможности технологии. Кратко рассмотрены пути совершенствования микрофокусных рентгеновских трубок. Рассмотренные материалы будут полезны при выборе инструмента неразрушающего контроля, а также разработке и создании рентгеновских комплексов на основе микрофокусных рентгеновских трубок
Robotechnical system of multiangle microfocus radiography for operational control of large-sized products from polymer composite materials
No full textMemristive Behavior and Ideal Memristor of 1T Phase MoS<sub>2</sub> Nanosheets
No full textMemristor,
which had been predicted a long time ago (Chua, L. O. <i>IEEE
Trans. Circuit Theory</i> <b>1971</b>, 18, 507), was recently
invented (Strukov, D. B.; et al. <i>Nature</i> <b>2008</b>, 453, 80). The introduction of a memristor is expected to open a
new era for nonvolatile memory storage, neuromorphic computing, digital
logic, and analog circuit. Furthermore, several breakthroughs were
made for memristive phenomena and transistors with single-layer MoS<sub>2</sub> (Sangwan, V. K.; et al. <i>Nat. Nanotechnol</i>. <b>2015</b>, 10, 403. van der Zande, A. M.; et al. <i>Nat. Mater.</i> <b>2013</b>, 12, 554. Liu, H.; et al. <i>ACS Nano</i> <b>2014</b>, 8, 1031. Bessonov, A. A.; et
al. <i>Nat. Mater.</i> <b>2015</b>, 14, 199. Yuan,
J.; et al. <i>Nat. Nanotechnol.</i> <b>2015</b>, 10,
389). Herein, we demonstrate that 2H phase of bulk MoS<sub>2</sub> possessed an ohmic feature, whereas 1T phase of exfoliated MoS<sub>2</sub> nanosheets exhibited a unique memristive behavior due to
voltage-dependent resistance change. Furthermore, an ideal odd-symmetric
memristor with odd-symmetric <i>I</i>–<i>V</i> characteristics was successfully fabricated by the 1T phase MoS<sub>2</sub> nanosheets via combining two asymmetric switches antiserially
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