排序方式: 共有16条查询结果,搜索用时 15 毫秒
1.
V. V. Klechkovskaya L. G. Yanusova G. I. Ivakin N. A. Arkharova R. V. Gaynutdinov N. D. Stepina A. S. Orekhov V. V. Volkov 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2007,1(3):312-317
Special features of the formation of PbS nanocrystals in Langmuir-Blodgett (LB) films of lead stearate and behenate under the action of H2S are studied. It is shown that structural transformations in a multilayered LB film can be controlled using electron diffraction patterns of the oblique-texture type and x-ray reflectometry data. 相似文献
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A. V. Strel’tsov O. V. Morozova N. A. Arkharova V. V. Klechkovskaya I. N. Staroverova G. P. Shumakovich A. I. Yaropolov 《Moscow University Chemistry Bulletin》2009,64(2):107-110
In the present work, physico-chemical properties of conducting polyaniline (PANI) prepared by laccase-catalyzed oxidative polymerization in water dispersions of sodium dodecylbenzenesulfonate micellar solutions were studied. The polymer was characterized using FTIR spectroscopy, cyclic voltammetry, termogravimetry, transmission electron microscopy, and electron diffraction. The antistatic properties of the obtained polyaniline were also studied. 相似文献
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Arkharova N. A. Muslimov A. E. Butashin A. V. Asvarov A. Sh. Ismailov A. M. Klechkovskaya V. V. Kanevsky V. M. 《Crystallography Reports》2020,65(3):486-490
Crystallography Reports - The morphology and structure of heteroepitaxial ZnO films deposited on the (0001) surface of crystalline substrates of lanthanum–magnesium hexaaluminate LaMgAl11O19... 相似文献
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Crystallography Reports - The structural features of the poly(N-vinylpyrrolidone)–La(NO3)3 ? 6H2O composite hydrogel were studied by scanning and transmission electron microscopy. The... 相似文献
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Yu. G. Baklagina N. V. Lukasheva A. K. Khripunov V. V. Klechkovskaya N. A. Arkharova D. P. Romanov D. A. Tolmachev 《Polymer Science Series A》2010,52(4):419-429
A composite consisting of two nanosized biocompatible components, Acetobacter xylinum cellulose and calcium phosphate, is prepared through aggregation in an aqueous suspension. The structures of initial components
and composite are investigated by the methods of X-ray and electron diffraction and electron microscopy. The mineral component
consists of two crystalline phases, hydroxyapatite and whitlockite (magnesium-containing tricalcium phosphate), which are
nanosized platelike crystals. The composite preserves the crystalline structures of initial calcium phosphates and cellulose.
In the course of composite formation, hydroxyapatite and whitlockite crystallites are adsorbed on the surfaces of nanofibrillar
cellulose ribbons. Whitlockite nanocrystals are predominantly deposited on the surface of cellulose ribbons. The mutual orientation
of the surfaces of crystalline structures of cellulose and two types of calcium phosphates, hydroxyapatite and whitlockite,
is analyzed by means of computer simulation, and the variants of mutual arrangement of their surfaces during formation of
the interfacial boundary are suggested. 相似文献
6.
75LiF + 25SmF3 Eutectic Composite and Ionic Conductivity of SmF3 near the Polymorphic α–β Transition
Karimov D. N. Sorokin N. I. Grebenev V. V. Ivanova A. G. Arkharova N. A. Orekhov A. S. Sobolev B. P. 《Crystallography Reports》2020,65(3):468-472
Crystallography Reports - 75 mol % LiF + 25 mol % SmF3 eutectic composite is obtained by fusing components in a CF4 atmosphere. The composite is multiphase and consists of β-SmF3 (sp. gr.... 相似文献
7.
Elena I. Suvorova Natalya A. Arkharova Philippe A. Buffat 《Micron (Oxford, England : 1993)》2009,40(5-6):563-570
Transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to study the porous and non-porous α-tricalcium phosphate (α-Ca3(PO4)2, α-TCP) prepared through a sintering procedure at 1200–1400 °C of β-tricalcium phosphate (β-Ca3(PO4)2, β-TCP). The interpretation of experimental and calculated X-ray and electron diffraction patterns showed that the final product at 1400 °C was primarily α-TCP but roughly 3.0–8.0 wt.% of the starting β-TCP phase and up to 8.0 wt.% of CaO were in the final product. TEM images and electron diffraction patterns showed that the CaO phase – formed by decomposition of TCP – exists as micron-sized areas of various oriented nanocrystals embedded into the bulk α-TCP material and also as self-standing spherulite particles of a few microns in size. Surprisingly, formation of CaO from TCP decomposition occurred at temperatures below those predicted from the phase diagram of the CaO–P2O5 system. 相似文献
8.
Numerical simulation results of the civil aircraft engine fan stage noise in the far field are presented. Non-steady-state rotor–stator interaction is calculated the commercial software that solves the Navier–Stokes equations using differentturbulence models. Noise propagation to the far acoustic field is calculated by the boundary element method using acoustic Lighthill analogies without taking into account the mean current in the air inlet duct. The calculated sound pressure levels at points 50 m from the engine are presented, and the directional patterns of the acoustic radiation are shown. The use of the eddy resolving turbulence model to calculate rotor–stator interaction increases the accuracy in predicting fan stage noise. 相似文献
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