Results 61 to 70 of about 806,308 (335)

The total energy--momentum tensor for electromagnetic fields in a dielectric

, 2017
There are various formulations of energy--momentum tensors for an electromagnetic field in a linear dielectric. The total energy--momentum tensor, comprised of electromagnetic and material components, must be unique.
Crenshaw, Michael E.
core   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Note on post-Minkowskian expansion and Bondi coordinates

Nuclear Physics B
In this note, we transform the linear order (at order G) metric from a system of pointlike bodies source in the post-Minkowskian expansion to the Bondi coordinates.
Pujian Mao, Baijun Zeng
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Aerodynamic stiffness of an unbound eccentric whirling centrifugal impeller with an infinite number of blades [PDF]

, 1982
An unbounded eccentric centrifugal impeller with an infinite number of log spiral blades undergoing synchronous whirling in an incompressible fluid is considered.
Allaire, P. E., Branagan, L. A., Kocur, J. A.   +2 more
core   +1 more source

Ideal Linear Chain Polymers with Fixed Angular Momentum

, 2010
The statistical mechanics of a linear non-interacting polymer chain with a large number of monomers is considered with fixed angular momentum. The radius of gyration for a linear polymer is derived exactly by functional integration.
H. Kleinert, J. M. Deutsch, Matthew Brunner, Richard P. Feynman   +3 more
core   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Colisão com o 'efeito estilingue'

Revista Brasileira de Ensino de Física
Abordamos teoricamente a colisão com o 'efeito estilingue' onde um corpo transfere momento linear e energia cinética para um segundo corpo de massa menor, fazendo com que a energia mecânica desse segundo corpo cresça de forma surpreendente. Mostramos que,
Fernando Lang da Silveira, Luci F.M Braun, Thomas Braun   +2 more
doaj   +1 more source

A two-dimensional mixing length theory of convective transport

, 2013
The helioseismic observations of the internal rotation profile of the Sun raise questions about the two-dimensional (2D) nature of the transport of angular momentum in stars.
Chitre, S. M., Lesaffre, P., Potter, A. T., Tout, C. A.   +3 more
core   +3 more sources

Linear up-conversion of orbital angular momentum [PDF]

Optics Letters, 2012
We experimentally demonstrated that infrared light imprinted with orbital angular momentum (OAM) was linearly converted into visible light using four-wave mixing (FWM) via a ladder-type configuration in 85Rb atoms. Simultaneously, we theoretically simulated this linear conversion process, and the theoretical analysis was in reasonable agreement with ...
Ding, Dong-Sheng, Zhou, Zhi-Yuan, Shi, Bao-Sen, Zou, Xu-Bo, Guo, Guang-Can   +4 more
openaire   +3 more sources