Results 51 to 60 of about 403,177 (368)

DABCO-Catalyzed Mono-/Diallylation of N-Unsubstituted Isatin N,N′-Cyclic Azomethine Imine 1,3-Dipoles with Morita-Baylis-Hillman Carbonates

open access: yesMolecules, 2023
Allylation of N-unsubstituted isatin N,N′-cyclic azomethine imines with Morita-Baylis-Hillman carbonates in the presence of 1–10 mol% DABCO in DCM at room temperature, rapidly gave N-allylated and N, β-diallylated isatin N,N′-cyclic azomethine imine 1,3 ...
Qiumi Wang   +10 more
doaj   +1 more source

Test Reduction for Power Density Emitted by Handset mmWave Antenna Arrays

open access: yesIEEE Access, 2021
The exposure to electromagnetic field (EMF) from phased antenna arrays integrated into wireless devices operating at the millimeter-wave (mmWave) part of the spectrum should be evaluated in terms of power density (PD).
Stanislav Stefanov Zhekov   +3 more
doaj   +1 more source

2018 Table of static dipole polarizabilities of the neutral elements in the periodic table*

open access: yesMolecular Physics, 2018
A 2018 update of the most accurate calculated and experimental static dipole polarizabilities of the neutral atoms in the Periodic Table from nuclear charge Z = 1 to 120 is given. Periodic trends are analyzed and discussed.
P. Schwerdtfeger, J. Nagle
semanticscholar   +1 more source

Monitoring the Dipole-Dipole Interaction via Quantum Jumps of Individual Atoms [PDF]

open access: yesPhys. Rev. A 64, 053803 (2001), 2001
The emission characteristics in the fluorescence of two laser-driven dipole-dipole-interacting three level atoms is investigated. When the light from both atoms is detected separately a correlation of the emission processes is observed in dependence of the dipole-dipole interaction.
arxiv   +1 more source

How Accurate Is Density Functional Theory at Predicting Dipole Moments? An Assessment Using a New Database of 200 Benchmark Values. [PDF]

open access: yesJournal of Chemical Theory and Computation, 2017
Dipole moments are a simple, global measure of the accuracy of the electron density of a polar molecule. Dipole moments also affect the interactions of a molecule with other molecules as well as electric fields.
D. Hait, M. Head‐Gordon
semanticscholar   +1 more source

Intrinsic Two-Dimensional Ferroelectricity with Dipole Locking.

open access: yesPhysical Review Letters, 2018
Out-of-plane ferroelectricity with a high transition temperature in ultrathin films is important for the exploration of new domain physics and scaling down of memory devices.
Jun Xiao   +11 more
semanticscholar   +1 more source

Biomagnetic flow over a flat plate embedded by a magnetic dipole in a porous media

open access: yesInternational Journal of Applied Mechanics and Engineering, 2023
The present study used a simplified axisymmetric biomagnetic fluid dynamics and porous mediamodel which includes FHD (Ferrohydrodynamics), porosity and inertia effects saturated by magnetic dipole to study the influences of the leading parameters on ...
Ferdows Mohammad, Sadia Anjum Jumana
doaj   +1 more source

Phase transitions in dipolar spin-1 Bose gases [PDF]

open access: yesPhys. Rev. A 84, 013605 (2011), 2011
We study phase transitions in homogeneous spin-1 Bose gases in the presence of long-range magnetic dipole-dipole interactions (DDI). We concentrate on three-dimensional geometries and employ momentum shell renormalization group to study the possible instabilities caused by the dipole-dipole interaction.
arxiv   +1 more source

A Dual-Polarized Bandwidth Enhanced Filtering Dipole Antenna Design for 5G

open access: yesIEEE Access, 2023
The present study proposes a dual-polarized bandwidth-enhanced filtering specialized dipole antenna design for 5G by employing a wide printed dipole, filtering resonators, a reflector surface, and specially designed balun structures. Such a configuration
Feza Turgay Celik   +2 more
doaj   +1 more source

Comportamento das Águas Superficiais nos Oceanos Pacifico e Atlântico Durante o Período de 1982 a 2014

open access: yesRevista Brasileira de Meteorologia
Resumo O objetivo deste estudo é analisar o comportamento das temperaturas da superfície do mar (TSM) nas áreas dos Niños no oceano Pacífico e nas áreas correspondente ao Dipolo (N-S), no oceano Atlântico, durante o período de 1982 a 2014.
Flaviano Fernandes Ferreira   +6 more
doaj   +1 more source

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