Results 151 to 160 of about 4,375 (273)

Trap‐Programmable Ruddlesden–Popper Perovskite Nanocrystals for Persistent Optoelectronic Memory and Photonic Synapses

Advanced Science, EarlyView.
This work presents trap‐programmable Ruddlesden–Popper perovskite nanocrystals for ultralong‐lived optical memory and photonic synapses. Layer‐controlled octahedral distortion modulates trap depth and carrier‐storage kinetics, enabling persistent luminescence beyond 5000 s at room temperature.
Xuanyu Zhu, Qi Liu, Qi Wei, Hui Ren, Luwei Zhou, Jiangbo Peng, Yuxuan Chen, Jiatong Wang, Leyi Zhao, Pengzhi Wang, Xue Hao, Ting Wang, Mingjie Li   +12 more
wiley   +1 more source

Techniques for integration within Bezier domains and approximation of circular arcs. [PDF]

MethodsX
Perumal L.
europepmc   +1 more source

Session F-1: Investigating Quadrilaterals

, 2014
In a high school geometry course, quadrilaterals are not given much treatment compared to triangles or circles. Many students do not understand the necessity of proof, and few have ever discovered a potentially new theorem.
Keyton, Michael
core  

Unraveling the Effects of Depolarization in Ultrathin Barium Titanate

Advanced Science, EarlyView.
This article employs synchrotron‐based spectroscopy, time‐resolved electrical measurements, and phase‐field simulations to establish reverse‐domain formation as the mechanism of polarization loss in ultrathin BaTiO3${\rm BaTiO}_3$ films as a critical obstacle to low‐voltage ferroelectric devices.
Thomas Lee, Prabhat Kumar, Christoph Klewe, Pravin Kavle, Padraic Shafer, Zhi (Jackie) Yao, Lane W. Martin   +6 more
wiley   +1 more source

Dancing Dorsal Quadrilaterals: Case Report. [PDF]

Int J Spine Surg
Sampaio Júnior FAU, Lira Filho HT, Rodrigues MS, Sampaio LMQ, Quidute BSQ, Cunha JCFD, Alves OL.   +6 more
europepmc   +1 more source

Mixed Methods on Quadrilaterals and Hexahedra

, 1992
We describe a new family of discrete spaces suitable for use with mixed methods on general quadrilateral and hexahedral elements. The new spaces are natural in the sense of differential geometry, so all the usual mixed method theory, including the hybrid
Keenan, Philip T.
core  

B‐Site Multi‐Element Micro‐Doping Engineered Air Electrodes With Fast Oxygen Kinetics for Reversible Protonic Ceramic Electrochemical Cells

Advanced Science, EarlyView.
Mo‐tuned multi‐element micro‐doping regulates redox chemistry, oxygen nonstoichiometry, hydration, and interfacial kinetics in PBSCF‐derived air electrodes for reversible protonic ceramic electrochemical cells. The cell with optimized PBSCFMNM03 air electrode delivers 1.10 W cm−2 in fuel cell mode and 1.88 A cm−2 at 1.3 V in electrolysis mode at 650 °C,
Wenkai Yang, Yue Bao, Timileyin Aworinde, Linfeng Yu, Shaikh Abdullah, Lakshya Mathur, Daofan Wang, Lourdes F. Vega, Chuancheng Duan, Sivaprakash Sengodan   +9 more
wiley   +1 more source

Phosphine Coordination to Ce, Nd, Np, and Pu in ArBiAMPtBu‐Supported Complexes and Their 2H and 13C Isotopologues

Advanced Science, EarlyView.
A dianionic ligand designed to encourage metal‐phosphine coordination—bis((3,5‐dimethylphenyl)amidomethyl)tertbutylphosphine (ArBiAMPtBu)—was employed in the synthesis of paramagnetic complexes of Ce, Nd, Np, and Pu, producing MI(ArBiAMPtBu)(thf)3.
Novan A. G. Gray, Yury Minko, Brenna K. Cashman, R. Joseph Lastowski, Adam R. Altenhof, Harris E. Mason, Daniel J. Lussier, Frank MacGregor, Andrew J. Gaunt, Aaron M. Tondreau   +9 more
wiley   +1 more source

Hoberman-Inspired Reconfigurable DNA Origami Ring for Nanoscale Capture. [PDF]

Small
Wisniewski H, Saji M, Reyes M, Yang Q, Zhang F.   +4 more
europepmc   +1 more source

Some characteristics of learning to notice students' mathematical understanding of the classification of quadrilaterals

, 2015
International audienceThe goal of this study is to examine how prospective secondary school mathematics teachers learn to notice students' mathematical thinking about the process of classification of quadrilaterals.
Fernández, Ceneida, Sánchez-Matamoros, Gloria, Llinares, Salvador   +2 more
core