Results 1 to 10 of about 702,808 (168)

Effects of Nano-Sized PbO on the Transport Critical Current Density and Flux Activation Energy of YBa2Cu3O7-δ Superconductor

open access: yesInternational Journal of Electrochemical Science, 2017
The effects of nano-sized PbO (10-30 nm) addition on the critical temperature, transport critical current density (Jc) and flux activation energy of YBa2Cu3O7-δ (PbO)x (x = 0.00-0.45 wt.%), prepared by the standard solid-state reaction method were ...
Annas Al-Sharabi   +6 more
doaj   +1 more source

glass-transition temperature [PDF]

open access: yes, 2014
Citation: 'glass-transition temperature' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.G02641 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests
openaire   +1 more source

pH-sensitive tunable thermochromic hydrogel with carbon quantum dots for smart windows

open access: yesNational Science Open
Thermoresponsive hydrogels have been designed for smart windows to dynamically modulate solar radiation, but their inherent drawbacks of long response time and imperfectly matched phase transition temperature have limited their wide applications.
Zhong Sai   +7 more
doaj   +1 more source

Enhanced magnetization in Y substituted Bi0.94Sm0.06FeO3 multiferroic ceramics

open access: yesKuwait Journal of Science, 2020
The compounds Bi0.94Sm0.06FeO3, Bi0.92Sm0.06Y0.02FeO3, Bi0.90Sm0.06Y0.04FeO3, and Bi0.88Sm0.06Y0.06FeO3 were found to have the rhombohedral perovskite-like structure. The structural parameters were extracted from the X-ray diffraction data.
Mansour Al-Haj
doaj  

Research of the tolerable pulsed power of silicon p+–p–n+-structure [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2011
The conducted researches of the thermal parameters of the silicon p+–p–n+-structure under the influence of the pulse signal have shown that the structure thermal resistance decreases in proportion to the decrease in the thickness of the base region and ...
Karimov A. V.   +4 more
doaj  

Dirty two-band superconductivity with interband pairing order

open access: yesNew Journal of Physics, 2018
We study theoretically the effects of random nonmagnetic impurities on the superconducting transition temperature T _c in a two-band superconductor characterized by an equal-time s -wave interband pairing order parameter.
Yasuhiro Asano   +2 more
doaj   +1 more source

Determination and Analysis of CCT Curves of Non-Quenched and Tempered Steel 38MnSiVS5

open access: yesTeshugang, 2022
The microstructure and micro-hardness of typical non-quenched and tempered steel 38MnSiVS5 ( /% : 0. 37C,0. 78Si,0. 012P,0. 045S,0. 03Mo,0. 120V,0. 004Nb,0. 003Ti) are analyzed by using thermal dilatometer, optical microscope and Vickers hardness tester.
Zhang Nian   +6 more
doaj  

Synthesis and characterization of styrene-co-divinylbenzene-graft-linseed oil by free radical polymerization

open access: yeseXPRESS Polymer Letters, 2008
A variety of opaque white to light yellow polymeric material have been prepared by two methods, one copolymerization of styrene (ST), divinylbenzene (DVB), and grafting of linseed oil (LIN), and the second involves the copolymerization of the same ...
doaj   +1 more source

Investigation of temperature-induced wear transition of an Mg-10Gd-1.4Y-0.4Zr alloy under non-lubricated sliding conditions

open access: yesMaterials Research Express, 2020
The friction and wear behavior of an Mg-10Gd-1.4Y-0.4Zr alloy were investigated in detail within a temperature range of 20 °C–200 °C in order to clarify temperature-induced mild-severe (M-S) wear transition mechanism and verify if contact surface dynamic
Yuanbo Wang   +3 more
doaj   +1 more source

Intercalant-independent transition temperature in superconducting black phosphorus

open access: yesNature Communications, 2017
No superconductivity could so far be achieved in black phosphorus in its normal orthorhombic form. Here, the authors demonstrate that intercalation with alkali metals makes black phosphorus superconducting with intercalant-independent transition ...
R. Zhang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy