Results 81 to 90 of about 1,035 (272)

Scene‐Customized Learning for Multi‐Depth 3D Phase‐Only Hologram Generation

Advanced Intelligent Systems, EarlyView.
 Scene‐customized geometric modeling constructs GM‐4K, a controllable 4K RGB‐D dataset for learning‐based multi‐depth hologram generation. By tuning intensity spectra and depth‐region sampling, the dataset reveals how training‐data statistics affect phase‐only hologram encoding and supports a spectral test framework for evaluating model generalization ...
Yanan Zhang, Jiaqi Li, Tao Jing, Yang Yu, Yang Zhang, Xingpeng Yan   +5 more
wiley   +1 more source

Experimental Characterization of Optical Turbulence Using Custom-Built Atmospheric Chamber for FSO Applications

IEEE Open Journal of the Communications Society
Free-space optical (FSO) communication has emerged as a promising solution for high-speed, high-bandwidth wireless transmission, overcoming the spectrum congestion and licensing constraints associated with radio frequency (RF) systems.
Dhruv, Hemani Kaushal, Matthew Eells, Arun K. Majumdar   +3 more
doaj   +1 more source

Optimum transmitter radius for ground-to-satellite laser uplink communication systems in the presence of beam wander effect

, 2010
Based on weak fluctuation theory and gamma-gamma irradiance distribution model, the combined effect of scintillation and beam wander on ground-to-satellite laser uplink communication systems is analyzed and optimum transmitter radius for the system is ...
Dang, Anhong, Sinan Zhao, Guo, Hong, Zhao, Sinan, Bin Luo, Hong Guo, Luo, Bin, Anhong Dang   +7 more
core   +1 more source

String Figuring young children's perspectives of quality in English early childhood education and care

British Educational Research Journal, EarlyView.
Abstract Quality in early childhood education and care (ECEC) is a contested concept and has generally been conceptualised by inter‐related indicators such as staff qualifications, educational environment, policy or child‐to‐staff ratios. There has been a more limited emphasis on how young children might perceive and experience quality.
Nikki Fairchild, Éva Mikuska
wiley   +1 more source

Beam wander analysis for focused partially coherent beams propagating in turbulence [PDF]

Optical Engineering, 2012
We extend the theory of beam wander for propagation through atmospheric turbulence to the case of a focused partially coherent beam (PCB). In addition to investigating the beam wander expression, we restate expressions for the beam size, long- and short-time average beam intensity profile, and the on-axis scintillation index of tracked and untracked ...
openaire   +1 more source

Light‐Modulated Exchange Bias in Multiferroic Heterostructures

Electron, EarlyView.
In this article, exchange bias and magnetization are modulated with visible light at room temperature in PMN‐PZT/FeGa/IrMn multiferroic heterostructures. Photostrictive effect is the main mechanism leading to the modulation of magnetic anisotropy and interfacial exchange bias coupling between the ferromagnetic and antiferromagnetic layers.
Huan Tan, Zheng Ma, Cynthia Bou Karroum, Matthieu Liparo, Jean‐Philippe Jay, David Spenato, David T. Dekadjevi, Luís Martínez Armesto, Alberto Quintana, Jordi Sort   +9 more
wiley   +1 more source

A Novel Bipolar DC Connection Strategy for Photovoltaic Power Plants With a 50% Reduction in DC Cabling Length

Energy Science &Engineering, EarlyView.
Bipolar configuration is a new topology in the direct current (DC) system of photovoltaic power plants, which is topologically analogous to the bipolar configuration utilised in High‐Voltage Direct Current power transmission systems. DC cable length and copper usage are reduced by 50% using a bipolar configuration.
Duško M. Tovilović, Željko R. Đurišić, Vladan R. Durković   +2 more
wiley   +1 more source

From the Field to the Laboratory: The Theory‐Practice Research of Peter J. Carnevale

Negotiation and Conflict Management Research, EarlyView., 2020
Abstract As colleagues and collaborators, we reflect on the work and legacy of Peter Carnevale, currently professor at the University of Southern California, and recipient of the 2002 Jeffrey Z. Rubin Theory‐to‐Practice Award of the International Association for Conflict Management (IACM). We review Carnevale’s main contributions, including his work on
Linda L. Putnam, Mara Olekalns, Donald E. Conlon, Carsten K. W. De Dreu   +3 more
wiley   +1 more source

Supercritical Angle Fluorescence and Raman Techniques in Biophotonics

Laser &Photonics Reviews, EarlyView.
Supercritical angle fluorescence (SAF) microscopy and supercritical angle Raman (SAR) spectroscopy have emerged as powerful tools in the field of biophotonics, enabling high‐resolution imaging and spectroscopy of biological specimens near interfaces. This review article provides a comprehensive overview of the principles, techniques, applications, and ...
Subir Das, Nathalia Simea Münch, Stefan Seeger   +2 more
wiley   +1 more source

Effects of beam wander on free-space optical communications through turbulent atmosphere

, 2010
Effects of beam wander on uncoded bit-error-rate (BER) of direct-detection OOK modulated FSO communication systems using collimated and focused Gaussian beams are studied.
Liao, Rui, Zhao, Zhijun
core   +1 more source