Results 21 to 30 of about 651,736 (310)

Influence of cation substitution on mechanical properties of (Cu1-xAgx)7GeSe5I mixed crystals and composites on their base

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2020
Microhardness of (Cu1–xAgx)7GeSe5I mixed crystals and composites on their base was investigated using the Vickers indenter at room temperature. (Cu1–xAgx)7GeSe5I mixed crystals were obtained using the Bridgman–Stockbarger method. Composites on their base
A.V. Bendak   +5 more
doaj   +1 more source

Interfuel Substitution and Energy Use in the UK Manufacturing Sector [PDF]

open access: yes, 2014
This paper investigates interfuel substitution in the UK manufacturing sector. Econometric models of interfuel substitution are applied to energy inputs aggregated by their energy use, and separately for thermal heating processes, where interfuel ...

core   +3 more sources

Hydrolysis-oxidation of cellulose to formic acid in the presence of micellar vanadium-containing molybdophosphoric heteropoly acids

open access: yesResults in Engineering, 2023
OxFA-processing of inedible cellulose is considered as a perspective way for the production of biogenic formic acid (FA) which appeared to be a promising source for sustainable energy.
Nikolay V. Gromov   +6 more
doaj   +1 more source

Synthesis and Characterization of Zn/Al, Zn/Fe, and Zn/Cr Layered Double Hydroxides: Effect of M3+ ions Toward Layer Formation

open access: yesScience and Technology Indonesia, 2019
Layered double hydroxides are composed by substitution of metal cation divalent and trivalent. Metal cation divalent and trivalent can be changed. In this work, effect metal cation trivalent (M3+) toward layer formation were studied.
Neza Rahayu Palapa   +4 more
doaj   +1 more source

Highly efficient Fe3+-doped A2 BB′O6 (A = Sr2+, Ca2+; B, B′ = In3+, Sb5+, Sn4+) broadband near-infrared-emitting phosphors for spectroscopic analysis

open access: yesLight: Science & Applications, 2022
Highly efficient Fe3+-activated Sr2-y Ca y (InSb)1-z Sn2z O6 near-infrared-emitting phosphors exhibit tunable emission from 885 to 1005 nm with cation substitution of Ca2+ for Sr2+ and further cosubstitution of [Sn4+–Sn4+] for [In3+–Sb5+].
Dongjie Liu   +9 more
doaj   +1 more source

Influence of cation substitution on optical constants of (Cu1-xAgx)7SiS5I mixed crystals

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2020
(Cu1–хAgx)7SiS5I mixed crystals were grown using the vertical zone crystalliza-tion method, they have been shown to crystallize in cubic structure (). The diffuse reflection spectra for the powders of (Cu1–хAgx)7SiS5I mixed crystals were measured at room
I.P. Studenyak   +7 more
doaj   +1 more source

Studying the mechanical properties of (Cu1–xAgx)7GeS5I mixed crystals by using the micro-indentation method

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2018
(Cu1–xAgx)7GeS5I mixed crystals were grown using the Bridgman–Stockbarger method. The hardness dependences on the indentation depth profiles in (Cu 1–x Ag x ) 7 GeS 5 I mixed crystals were investigated.
V.V. Bilanych   +5 more
doaj   +1 more source

Metal ligand vibrations of [Cd(nh3) 4] (re04]) 2 with 110Cd/116Cd and h/d isotopic substitution

open access: yesSemina: Ciências Sociais e Humanas, 1980
Raman and ir. Spectra of [Cd(nh3) 4] (re04]) 2 with 110Cd/116Cd and h/d isotopic substitution have been obtained. The frequencies and isotopic shift for the framework of the [Cd(nh3) 4] (re04]) + 2 cation complex are reported.Obtenção dos espectros Raman
Cláudio Alberto Tellez
doaj   +3 more sources

The oxygen migration in the apatite-type lanthanum silicate with the cation substitution

open access: yes, 2013
A theoretical model is proposed to determine the effects of Si substitution with Al on the oxygen diffusion in apatite-type lanthanum silicates based on density-functional theory (DFT) calculations for La10(SiO4)4(AlO4)2O2.
Sasaki, Taizo, Liao, Ting, Sun, Ziqi
core   +1 more source

THE MECHANISM OF IMPLEMENTATION OF THE POLICYOF IMPORT SUBSTITUTION IN THE ARKHANGELSK REGION

open access: yesМодернизация, инновация, развитие, 2016
In modern conditions of development of the world economy and the processes of globalization increasingly raises the question of the independence of the region from products that are necessary for the viability of the population purchased from third-party
N. Didenko, A. Kuzaeva
doaj   +1 more source

Home - About - Disclaimer - Privacy