Results 141 to 150 of about 3,041,315 (395)

Optical transmittance of silica aerogel

Natural Science Review
This paper presents the investigation of aerogel Cherenkov radiation detectors and the optical characterization of aerogel samples within the framework of the SPD experiment at the NICA accelerator complex, which is under construction at the Joint Institute for Nuclear Research (Dubna, Russia). The transmittance of aerogel samples was measured at the A.
A. Hakobyan, A. Mkrtchyan, D. Khurshudyan   +2 more
openaire   +1 more source

Adaptive modulation schemes for optical wireless communication systems [PDF]

High-speed wireless optical communication links have become more popular for personal mobile applications. This is a consequence of the increasing demand from the personal information service boom.
Zeng, Yu
core  

The Gigabit Optical Transmitters for the LHCb Calorimeters

, 2007
This report presents the boards developed for the optical data transmission of the calorimeter system of the LHCb experiment and test results. We developed two types of transmission boards: the single-channel and the multi-channel ones.
Marconi, U, Lax, Ignazio, Avoni, G, D’Antone, I   +3 more
core   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Optical phase and intensity modulation with improved transmitters

, 2003
An apparatus for transmitting at least a digital optical signal with a simultaneous modulation of the amplitude and the phase, the said encoded optical signal having improved spectral efficiency and performances, and being generated by transmitters with ...
Mario Zitelli
core  

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

Advanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle, María Ángeles Navacerrada, Johan Christensen, Carlos González   +3 more
wiley   +1 more source

MIMO communication system capacity in random visible light channel

Компьютерная оптика
Being a promising one, optical information transmission standard expands capabilities of communication systems in the conditions of heavy frequency band load. Optical communication system efficiency in a room can be improved by multi-antenna systems. The
A.Y. Parshin, Y.N. Parshin
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Advances in optical technologies and techniques for high capacity communications

, 2017
The paper offers a survey on recent advances in the technological platforms for photonic integrated optical transceivers and innovative transmission techniques supporting the capacity increase of optical networks, in view of forthcoming 5G requirements ...
Vito Sorianello, Luca Potì, FRESI, Francesco, MELONI, GIANLUCA, Sorianello, Vito, IMRAN, MUHAMMAD, Francesco Fresi, Gianluca Meloni, FORESTIERI, Enrico, POTI', LUCA, MALACARNE, Antonio, Muhammad Imran, Antonio Malacarne, Enrico Forestieri   +13 more
core   +1 more source