Results 11 to 20 of about 2,994 (201)

Symmetry-Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies. [PDF]

Adv Sci (Weinh)
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Yang J, Feng P, Han F, Chen W, Jin Z, Ni J, Yang Y, Zhang A, Vandenbosch GAE, Verellen N, Janssens E, Wang J, Bai B, Qiu CW, Zheng X.   +14 more
europepmc   +2 more sources

A Candid Assessment of Standard Cosmology

, 2022
Modern cosmology is broadly based on the Cosmological principle, which assumes homogeneity and isotropy as its foundational pillars. Thus, there is not much debate about the metric (i.e., Friedmann-Lemaître-Robertson-Walker; FLRW) one should use to ...
Melia, F., Fulvio Melia
core   +1 more source

Cultural Astronomy: A possibility for teacher training [PDF]

, 2022
This presentation reports on part of a study carried out aiming to search for the contribution of the research in Cultural Astronomy to the teacher training.
Dos Santos, Milton Soares, Nardi, Roberto   +1 more
core  

Accelerating software radio astronomy FX correlation with GPU and FPGA co-processors [PDF]

, 2010
Includes abstract.Includes bibliographical references (leaves [117]-121).This thesis attempts to accelerate compute intensive sections of a frequency domain radio astronomy correlator using dedicated co-processors.
Woods, Andrew
core   +1 more source

General Science: Astronomy [PDF]

, 1930
General science is, as the name suggests, a study of the practical applications of the physical and natural sciences. To be a good teacher of the subject one should have a working understanding of the fundamental principles of physics, chemistry, biology,
Cable, E. J.
core   +1 more source

New Approach of explaining the missing sources of UHE Neutrinos as an Effect of Approaching Planck Length

, 2020
A new effect has been taken into account which has ever been used before in physics, this effect related to two different fields, Quantum physics, and General Relativity.
Abdullah Shehada
core   +1 more source

VLASS Epoch 1 Catalogs

, 2021
PyBDSF and SExtractor detection catalogs for the VLA Sky Survey (VLASS) Stroh, M. C., Terreran, G., Coppejans, D., Bright, J. and Margutti, R. All authors currently at: Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), 1800
Stroh, Michael C., Terreran, Giacomo, Margutti, Raffaella, Bright, Joe, Coppejans, Deanne   +4 more
core   +1 more source

Tracing satellite planes in the Sculptor group: I. Discovery of three faint dwarf galaxies around NGC 253

, 2021
Context. In recent years, a new generation of large-scale imaging surveys have probed wide field regions for the first time around some nearby galaxies in an unprecedentedly low surface-brightness regime (∼28.0-29.0 mag arcsec-2).
Vivas, Kathy, Javanmardi, Behnam, David Martínez-Delgado, Javier Román, Román, Javier, Donatiello, Giuseppe, Julio A. Carballo-Bello, Pawlowski, Marcel S., Makarova, Lidia, Kathy Vivas, Carballo-Bello, Julio, Lidia Makarova, Giuseppe Donatiello, Dmitry Makarov, Makarov, Dmitry, Dustin Lang, Vivas, A. Katherina, Pawlowski, Marcel, Carballo-Bello, Julio A., Martínez-Delgado, David, Behnam Javanmardi, Marcel S. Pawlowski, Lang, Dustin   +22 more
core   +1 more source

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

Open Access Bibliography: Liberating Scholarly Literature with E-Prints and Open Access Journals [PDF]

, 2005
The Open Access Bibliography: Liberating Scholarly Literature with E-Prints and Open Access Journals provides an overview of open access concepts, and it presents over 1,300 selected English-language books, conference papers (including some digital video
Bailey, Jr., Charles W.
core   +1 more source