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排序方式: 共有182条查询结果,搜索用时 31 毫秒
81.
Yu Ya. Tomashpolsky S. A. Menshikh L. A. Geraskina S. G. Prutchenko L. F. Rybakova P. A. Artamonov 《组合铁电体》2013,141(3-4):179-188
Abstract The homogeneous solutions of meta-acrylates of Bi, Pb, Sr, Ca, Cu were synthesized, and by spray-pyrolysis of the solutions and following annealing the high temperature superconducting Bi2Sr2CaCu2Ox+Bi2Sr2Ca2Cu3Ox films were prepared on LaAlO3 substrates. The connection was observed between annealing temperature, film thickness and type, quantity, and forms of impurity phases, such as strontium and calcium cuprates, calcium oxides, strontium oxides. The properties of these films (Ts ? 81 K, ΔTs ? 1 K) were shown to take place in case if their microstructure consisted of scale-like plates forming [001] texture. Also, it was concluded that under optimum conditions the Tscould be raised to > 100 K in Bi–containing films 相似文献
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A methodology was developed to use digital photograph fracture for calculating the integral fractal dimension and spectrum fractal dimensions for two perpendicular directions. The fractal dimension value, which was discovered by the variation of the pixel size up until the fractal dimension became unchangeable, i.e., where d
\min,d
\max are the borders of the scale level used. The effectiveness of the methodology performed showed the basis of the fracture surface analyses for Al-based alloys BS L65 and 2024 T351 (analogous to Al alloy D16T), specimens of which were tested by pull-push with imitation fretting corrosion damage of the sur- face and with four-point bending after the laser peening, respectively. 相似文献
84.
Evgenii Skurikhin Pavel Madonov Olga Pershina Natalia Ermakova Angelina Pakhomova Darius Widera Edgar Pan Mariia Zhukova Lubov Sandrikina Andrey Artamonov Alexander Dygai 《International journal of molecular sciences》2021,22(11)
Concentration of hyaluronic acid (HA) in the lungs increases in idiopathic pulmonary fibrosis (IPF). HA is involved in the organization of fibrin, fibronectin, and collagen. HA has been proposed to be a biomarker of fibrosis and a potential target for antifibrotic therapy. Hyaluronidase (HD) breaks down HA into fragments, but is a subject of rapid hydrolysis. A conjugate of poloxamer hyaluronidase (pHD) was prepared using protein immobilization with ionizing radiation. In a model of bleomycin-induced pulmonary fibrosis, pHD decreased the level of tissue IL-1β and TGF-β, prevented the infiltration of the lung parenchyma by CD16+ cells, and reduced perivascular and peribronchial inflammation. Simultaneously, a decrease in the concentrations of HA, hydroxyproline, collagen 1, total soluble collagen, and the area of connective tissue in the lungs was observed. The effects of pHD were significantly stronger compared to native HD which can be attributed to the higher stability of pHD. Additional spiperone administration increased the anti-inflammatory and antifibrotic effects of pHD and accelerated the regeneration of the damaged lung. The potentiating effects of spiperone can be explained by the disruption of the dopamine-induced mobilization and migration of fibroblast progenitor cells into the lungs and differentiation of lung mesenchymal stem cells (MSC) into cells of stromal lines. Thus, a combination of pHD and spiperone may represent a promising approach for the treatment of IPF and lung regeneration. 相似文献
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A. Artamonov V. Epstein P. Gorbunov V. Jemanov V. Khovansky A. Kuchenkov S. Kruchinin A. Maslennikov M. Rjabinin P. Shatalov V. Vinogradov V. Zaitsev S. Zeldovich I. Zuckerman 《Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment》1996,370(2-3):425-428
We report on the design and on beam test results of a liquid argon calorimeter prototype. This technology was proposed as an option for the forward region of an experiment at the future Large Hadron Collider (LHC) at CERN. The measurements were performed using electrons from the ITEP PS with an energy range of 1 to 5 GeV. 相似文献
87.
Malikov A. A. Khludov S. Ya. Boriskina M. O. Artamonov V. D. 《Russian Engineering Research》2019,39(11):955-958
Russian Engineering Research - Polyhedral cutting inserts with a discrete cutting edge are described. Such insert designs are considered for rough turning. Their performance is verified in... 相似文献
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