Results 131 to 140 of about 106,236 (266)

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

Advanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Zhikang Zhou, Zhilu Liang, Shuonan Ye, Meng Li, Xiao Tong, Kim Kisslinger, Sooyeon Hwang, Dmitri Zakharov, Renu Sharma, Judith C. Yang, Guangwen Zhou   +14 more
wiley   +1 more source

Numerical analysis, spectral graph theory, orthogonal polynomials and quantum algorithms. [PDF]

Philos Trans A Math Phys Eng Sci
Minenkova A, Mograby G, Zhan H.
europepmc   +1 more source

Estimate of the critical exponents from the field-theoretical renormalization group: mathematical meaning of the “Standard Values” [PDF]

, 2008
А. А. Погорелов, I. M. Suslov
openalex   +1 more source

Purcell‐Enhanced Spectrally Precise Emission in Dual‐Microcavity Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Spectrally precise emission from broadband organic light‐emitting diodes is realized via a dual‐microcavity strategy. This architecture achieves narrowband emission (full width at half maximum, FWHM = 21 nm) with ultrapure color approaching BT.2020 by enhancing the Purcell effect via coupling of excitons with dual‐microcavity resonance.
Jun Yong Kim, Sang Youn Lee, Kwan Hyun Cho, Yun Seon Do   +3 more
wiley   +1 more source

Comparative study of thermal response for tetra nanofluid through a vertically oriented needle device inspired by combined convection and porous media. [PDF]

Sci Rep
Rajhi W, Ben Hamida MB, Adnan, Walelign T, Ahmad H, Khan SU, Alrasheedi N.   +6 more
europepmc   +1 more source

Double (implicit and explicit) dependence of the electromagnetic field of an accelerated charge on time: Mathematical and physical analysis of the problem [PDF]

, 1998
Andrew Chubykalo, S.J. Vlaev
openalex  

Relationship to knowledge and importance of the characteristics of the fields of study for the choice of higher education students in history and mathematics

, 2001
Isabelle Hermet, Colette Laterrasse, Valérie Capdevielle   +2 more
openalex   +1 more source

Quantum‐Grade Nanodiamonds from a Single‐Step, Industrial‐Scale Pressure and Temperature Process

Advanced Functional Materials, EarlyView.
Novel method for creation of nitrogen‐vacancy centers in 50‐nm nanodiamonds based on high‐temperature plastic deformation is demonstrated. Compared to the electron irradiation approach, it yields nitrogen‐vacancy centers with significantly improved charge stability, T1 relaxation time, and optical Rabi contrast.
Yahua Bao, Michal Gulka, Parkarsh Kumar, Jakub Copak, Priyadharshini Balasubramanian, Yuliya Mindarava, Rémi Blinder, Michael Olney‐Fraser, Haotian Wen, Hana Spanielova, Helen Zhi Jie Zeng, Benjamin Whitefield, Igor Aharonovich, Jaroslav Hruby, Fedor Jelezko, J. Daniel Belnap, Shery L. Y. Chang, Petr Cigler   +17 more
wiley   +1 more source

A novel machine learning approach to analysis of electroosmotic effects and heat transfer on Multi-phase wavy flow. [PDF]

Sci Rep
Aslam MN, Riaz A, Arshad MS, AlZubaidi A, Maqsood R, Al-Nahari AM, Kallel M.   +6 more
europepmc   +1 more source

Mathematical analysis of phase-field equations with numerically efficient coupling terms

, 2001
Michal Beneš
openalex   +1 more source