2,286 research outputs found
Investment security of Ukraine: dynamics and forecast ΠΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½Π°Ρ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΡ Π£ΠΊΡΠ°ΠΈΠ½Ρ: Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΈ ΠΏΡΠΎΠ³Π½ΠΎΠ·
The article considers dichotomy of the notion of security in its terminological application to investment processes. The author uses comparison and critical analysis of existing generally accepted approaches for offering own definition of the βinvestment securityβ notion and own approach to its assessment, based on structural consideration of investment security through components of the investment climate (investment potential, investment activity, investment risks) and on application of the cluster analysis and rating. The article considers dynamics of investment security of Ukraine. It graphically traces influence of the state policy in the country upon dynamics of investment security and gives a forecast of development of the phenomenon for the next year.<br>Π Π°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ Π΄ΠΈΡ
ΠΎΡΠΎΠΌΠΈΡ ΠΏΠΎΠ½ΡΡΠΈΡ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ Π² Π΅Π΅ ΡΠ΅ΡΠΌΠΈΠ½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΌ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠΈ ΠΊ ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½ΡΠΌ ΠΏΡΠΎΡΠ΅ΡΡΠ°ΠΌ. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ ΠΈ ΠΊΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΡΡΡΠ΅ΡΡΠ²ΡΡΡΠΈΡ
ΠΎΠ±ΡΠ΅ΠΏΡΠΈΠ½ΡΡΡΡ
ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ΠΎΠ² ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ΠΎ Π°Π²ΡΠΎΡΡΠΊΠΎΠ΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΏΠΎΠ½ΡΡΠΈΡ Β«ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½Π°Ρ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΡΒ» ΠΈ Π°Π²ΡΠΎΡΡΠΊΠΈΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΊ Π΅Ρ ΠΎΡΠ΅Π½ΠΊΠ΅, ΠΎΡΠ½ΠΎΠ²Π°Π½Π½ΡΠΉ Π½Π° ΡΡΡΡΠΊΡΡΡΠ½ΠΎΠΌ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½ΠΈΠΈ ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½ΠΎΠΉ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ ΡΠ΅ΡΠ΅Π· ΡΠΎΡΡΠ°Π²Π»ΡΡΡΠΈΠ΅ ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΊΠ»ΠΈΠΌΠ°ΡΠ° (ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½ΡΠΉ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π», ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½Π°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ, ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½ΡΠ΅ ΡΠΈΡΠΊΠΈ) ΠΈ Π½Π° ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠΈ ΠΊΠ»Π°ΡΡΠ΅ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ ΡΠ΅ΠΉΡΠΈΠ½Π³ΠΈΡΠΎΠ²Π°Π½ΠΈΡ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Π° Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½ΠΎΠΉ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ Π£ΠΊΡΠ°ΠΈΠ½Ρ. ΠΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈ ΠΏΡΠΎΡΠ»Π΅ΠΆΠ΅Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΏΡΠ°Π²ΠΈΡΠ΅Π»ΡΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΈ Π² ΡΡΡΠ°Π½Π΅ Π½Π° Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΡ ΠΈΠ½Π²Π΅ΡΡΠΈΡΠΈΠΎΠ½Π½ΠΎΠΉ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ. Π‘Π΄Π΅Π»Π°Π½ ΠΏΡΠΎΠ³Π½ΠΎΠ· ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΠ²Π»Π΅Π½ΠΈΡ Π½Π° Π±Π»ΠΈΠΆΠ°ΠΉΡΠΈΠΉ Π³ΠΎΠ΄
Π‘ΠΈΠ½ΡΠ΅Π· ΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΡΠΈΠ»ΠΈΠΊΠ°ΡΠΎΠ² Π²ΠΈΡΠΌΡΡΠ°, ΠΏΡΠΈΠ³ΠΎΡΠΎΠ²Π»Π΅Π½Π½ΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΌΠ΅Ρ Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ
Π Π½Π°ΡΡΠΎΡΡΠ΅ΠΉ ΡΠ°Π±ΠΎΡΠ΅ Π±ΡΠ»ΠΈ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Ρ ΡΠ΅ΡΠΈΠΈ ΡΠΈΠ»ΠΈΠΊΠ°ΡΠΎΠ² Π²ΠΈΡΠΌΡΡΠ° ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ²Π° ΡΠ°ΠΊΠΈΠΌΠΈ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ, ΠΊΠ°ΠΊ Π’Π-ΠΠ‘Π Π°Π½Π°Π»ΠΈΠ· ΠΈ Π Π€Π-ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΡ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Π΄Π»Ρ ΡΠ΅ΡΠΈΠΈ, ΠΏΡΠΈΠ³ΠΎΡΠΎΠ²Π»Π΅Π½Π½ΠΎΠΉ Ρ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ΅Π°Π³Π΅Π½ΡΠΎΠ² Bi:Si = 2:1 ΠΏΠΎΡΠ»Π΅ 800 Β°Π‘ Π½Π°ΡΡΡΠΏΠ°Π΅Ρ ΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΠ΅, ΡΠΎΠ³Π΄Π° ΠΊΠ°ΠΊ Π΄Π»Ρ ΡΠ΅ΡΠΈΠΈ Ρ ΡΠΊΠ²ΠΈΠ°ΡΠΎΠΌΠ½ΡΠΌ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ΠΌ Bi ΠΈ Si Π² ΠΈΡΡ
ΠΎΠ΄Π½ΡΡ
ΡΠ΅Π°Π³Π΅Π½ΡΠ°Ρ
ΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ Π² ΡΡΠΎΠΌ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½ΠΎΠΌ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ Π½Π΅ Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΏΡΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΏΡΠΎΠΊΠ°Π»ΠΈΠ²Π°Π½ΠΈΡ Ρ 500ΛΠ‘ Π΄ΠΎ 700 Β°Π‘ ΡΠ°Π·Π° ΠΌΠ΅ΡΠ°ΡΠΈΠ»ΠΈΠΊΠ°ΡΠ° Π²ΠΈΡΠΌΡΡΠ° (Bi2SiO5) ΠΏΠΎΠ»Π½ΠΎΡΡΡΡ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄ΠΈΡ Π² ΠΎΡΡΠΎΡΠΈΠ»ΠΈΠΊΠ°Ρ Π²ΠΈΡΠΌΡΡΠ° (Bi4Si3O12), Π° Π΄ΠΎΠ»Ρ ΡΠ°Π·Ρ ΡΠΈΠ»Π»Π΅Π½ΠΈΡΠ° (Bi12SiO20) ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅ΡΡΡ ΠΏΡΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠΈ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Bi:Si
Structural and magnetic characteristics of the Co/Cu/Co thin-film systems
The results on investigation of structural and magnetic characteristics of Co/Cu/Co thin-film systems obtained by magnetron sputtering on glass substrates are presented. The thickness of Co layers in all samples is equal to 5 nm and the Cu layer is varied from 0.5 to 4 nm. It is found that the saturation field, H S , oscillates in magnitude with increasing Cu layer thickness with the period of the order of 1 nm. The maximum values of H S are observed for t Cu = 1.4, 2.2 and 3.2 nm. The hysteresis loops measured for these samples in a magnetic field applied along the easy magnetization axis have a two-step form, and for other t Cu -rectangular one. The obtained results are explained by the presence of exchange coupling between the ferromagnetic layers through a Co spacer and its oscillating behavior with changing t Cu . Β© 2018 The Authors, published by EDP Sciences.This work was supported by the Russian Foundation of Basic Research, Grants 15-02-02077
Pt-CeO2-based composites in environmental catalysis: A review
The PtβCeO2-based composites have brought about a vivid research interest due to their use in advanced combustion engines, proton-exchange membrane fuel cells, etc. Complementing features of Pt and ceria particles cause numerous applications of such composites in environmental catalysis science and technology. The present review summarizes recent advances in PtβCeO2 chemistry and discusses the following key aspects: (1) catalyst preparation, including Pt and Ce-MOF-derived precursors, and treatment methods, (2) Pt-related factors: size, including single-atom formulations, and state, (3) CeO2-related factors: morphology, surface defects, and derived features, (4) modification of catalyst composition, including the formation of bimetallic particles, (5) nature and structure of active sites, (6) features of metalβsupport interaction. The range of covered environmental catalytic applications includes oxidation processes (CO oxidation, VOCs abatement, soot oxidation, combustion of vehicle exhausts, etc.), reduction of nitroaromatics, CO2 utilization (dry reforming of alkanes, CO2 reduction, etc.), and photocatalytic reactions
ΠΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΆΡΡΠ½Π°Π»Ρ ΠΈ ΠΈΡ ΠΈΠ½ΡΠ΅ΡΠ½Π°ΡΠΈΠΎΠ½Π°Π»ΠΈΠ·Π°ΡΠΈΡ: ΠΏΠ΅ΡΠ²ΡΠΉ ΠΏΠΎΡΡΡΠ³Π°Π»ΡΡΠΊΠΈΠΉ ΠΆΡΡΠ½Π°Π» βJornal de sciencias mathematicas e astronomicasβ
The article describes the historical place of the first Portuguese Journal βJornal de sciencias mathematicas e astronΓ³micasβ (TeixeiraΒ΄s Journal) during the development of the European mathematical community at the end of the 19th century
Features of the magnetic properties of Co/Si/Co thin-film systems
The magnetic properties of Co/Si/Co thin-film structures grown by magnetron sputtering have been studied using magnetooptical techniques. It is established that the saturation field (H S) of trilayers exhibits oscillations as a function of the thickness of the semiconductor (silicon) interlayer. This behavior is explained by structural features of the Co/Si/Co system and the presence of antiferromagnetic exchange coupling between magnetic layers via the silicon interlayer. Β© 2013 Pleiades Publishing, Ltd
Development of layered anode structures supported over Apatite-type Solid Electrolytes
Apatite-type lanthanum silicates (ATLS) materials have attracted interest in recent literature as solid electrolytes for SOFCs. The fabrication of an ATLS based fuel cell with the state-of-art electrodes (NiO/YSZ as anode and LSCF or LSM as cathode) can show degradation after long operation hours due to Si diffusion mainly towards the anode. In this work, we report a βlayer-by-layer anodic electrodesβ fabrication by means of spin coating and physical spraying. The overall aim of this work is the successful fabrication of such a layered structure including suitable blocking layers towards the inhibition of Si interdiffusion from the apatite electrolyte to the anode. The results showed that the deposition of 3 layers of LFSO/GDC (3ΞΌm), NiO/GDC (4ΞΌm) and the final NiO/YSZ anode layer provided a stable half-cell, with no solid state reaction occurring among the electrodes and no Si diffusion observed towards the anode after thermal treatment at 800Β°C for 120h
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