Results 61 to 70 of about 19,382 (232)
X-ray photoelectron spectroscopy studies of non-stoichiometric superconducting NbB2+x
, 2006 Polycrystalline samples of NbB2+x with nominal composition (B/Nb) = 2.0, 2.1, 2.2, 2.3, 2.4 and 2.5 were studied by X-ray photoelectron spectroscopy (XPS). The spectra revealed Nb and B oxides on the surface of the samples, mainly B2O3 and Nb2O5.
+10 more
core +1 more source
Design, production and characterization of mirrors for ultra-broadband, high-finesse enhancement cavities [PDF]
, 2016 To enable the enhancement of few-cycle pulses in high-finesse passive optical resonators, a novel complementary-phase approach is considered for the resonator mirrors.
Amotchkina, T. +6 more
core +1 more source
Advanced Intelligent Discovery, EarlyView.We discovered novel materials with giant dielectric constants by combining first‐principles phonon calculations and machine learning. Screening 525 perovskites identified six candidates. RbNbO3 was synthesized under pressure and showed ε ≈ 800–1000. This validates our framework as a powerful tool for high‐performance dielectric materials discovery.
Hiroki Moriwake +9 more
wiley +1 more source
Avaliação da atividade fotocatalítica de Nb2O5 = Evaluation of the photocatalytic activity of Nb2O5
Acta Scientiarum: Technology, 2010 Como a fotocatálise heterogênea é um dos métodos de tratamento de efluentes mais promissores, o estudo da atividade fotocatalítica de novos catalisadores é de primordial interesse.
Veronice Slusarski Santana +2 more
doaj
A study on phase equilibria in the CaO-Al2O3-SiO2-“Nb2O5”(5 mass pct) system in reducing atmosphere [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2013 Phase equilibria in 5 mass% “Nb2O5” plane of CaO-Al2O3-SiO2-“Nb2O5” system at 1873 K in an oxygen partial pressure of 1.78×10-6 Pa have been investigated through isothermal equilibration and quenching followed by EPMA examinations.
Yan B., Guo R., Zhang J.
doaj +1 more source
Superconducting Nb-film LC resonator
, 2000 Sputtered Nb thin-film LC resonators for low frequencies at 0.5 MHz have been fabricated and tested in the temperature range 0.05--1 K in magnetic fields up to 30 mT. Their Q value increases towards decreasing temperature as sqrt(T) and reaches 10^3 at 0.
A. Finne +14 more
core +1 more source
Surface Superconductivity in Niobium for Superconducting RF Cavities [PDF]
, 2004 A systematic study is presented on the superconductivity (sc) parameters of the ultrapure niobium used for the fabrication of the nine-cell 1.3 GHz cavities for the linear collider project TESLA.
Abrikosov +30 more
core +3 more sources
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.The systematic design of memristor‐based neural network is provided by analog conductance state parameters to accurately emulate the software‐based high‐resolution weight at discrete device level. The requirement of discrete analog conductance of memristor device is measured as ≈50 states with nonlinearity value of ≈0.142 within the deviation range of ...
Jingon Jang, Yoonseok Song, Sungjun Park
wiley +1 more source
Gongneng cailiao yu qijian xuebaoUtilizing solid-phase sintering technology, lead-free piezoelectric ceramics (K0.44Na0.52Li0.04)(Nb0.9Ta0.06Sb0.04)O3 with high density and superior electrical properties were successfully fabricated at temperatures ranging from 1055 to 1070 ℃.
Lin WANG +3 more
doaj +1 more source
Influence of niobium pentoxide addition on the properties of glass ionomer cements
Acta Biomaterialia Odontologica Scandinavica, 2016 Objective: To determine the influence of niobium pentoxide (Nb2O5) addition on the physical and chemical properties of glass ionomer cements (GICs). Materials and methods: Five, 10 or 20 wt.% of Nb2O5 were incorporated into commercial GICs (Maxxion R ...
Isadora Martini Garcia +4 more
doaj +1 more source