Results 71 to 80 of about 48,841 (303)

Geometric Quality Analysis of Terrestrial Laser Scanning Data for Industrial Usage

open access: yesInternational Islamic University Malaysia Engineering Journal
Terrestrial laser scanning is a potential emerging technology increasingly used in several applications, including reverse engineering, digital reconstruction, deformation monitoring, forensic crime scene preservation, and construction (AEC ...
Ali Salah J. Al-Saedi   +2 more
doaj   +1 more source

Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses

open access: yesAdvanced Functional Materials, EarlyView.
By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso   +4 more
wiley   +1 more source

Numerical Simulation of Radar Signal Reflected by Sea Surface with Different Sea Ice Concentration

open access: yesRussian Journal of Earth Sciences
Currently, methods of radar remote sensing at small incidence angles (from the vertical to 15∘) are actively developed. An important application of these methods is the determination of the presence and sea ice concentration.
Titchenko Yuriy   +5 more
doaj   +1 more source

Wide Incidence Angle-Insensitive Metamaterial Absorber for Both TE and TM Polarization using Eight-Circular-Sector

open access: yesScientific Reports, 2017
In this paper, a wide incidence angle-insensitive metamaterial absorber is proposed using eight-circular-sector (ECS). Under normal incidence, the proposed absorber shows high absorptivity at different polarizations due to its symmetric geometry.
Toan Trung Nguyen, Sungjoon Lim
doaj   +1 more source

Bandgap‐Engineered AlGaAs/GaAs Heterostructures for Wavelength‐Selective Dual‐Polarity Photoelectrochemistry

open access: yesAdvanced Functional Materials, EarlyView.
Bandgap‐engineered AlGaAs/GaAs heterostructures exhibit wavelength‐selective dual‐polarity photoelectrochemistry, switching from photocathodic to photoanodic response depending on excitation wavelength. The polarity transition is governed by band‐selective absorption, built‐in electric‐field‐driven carrier transport, and interfacial charge‐transfer ...
Yukai Mao   +9 more
wiley   +1 more source

Incidence geometry.

open access: yes, 2004
"December 2004"--Page [942]."This volume is published as a supplement to the Bulletin of the Belgian Mathematical Society, Simon Stevin"--Page [942].Cover title.Includes bibliographical ...
International Conference on Incidence Geometry(2004 :La Roche-en-Ardenne, Belgium)
core  

An Ultrathin, Triple-Band Metamaterial Absorber with Wide-Incident-Angle Stability for Conformal Applications at X and Ku Frequency Band

open access: yesNanoscale Research Letters, 2020
An ultrathin and flexible metamaterial absorber (MA) with triple absorption peaks is presented in this paper. The proposed absorber has been designed in such a way that three absorption peaks are located at 8.5, 13.5, and 17 GHz (X and Ku bands) with ...
Guangsheng Deng   +7 more
doaj   +1 more source

Interface Effects in Ultrathin Silicon on Insulator Films

open access: yesAdvanced Functional Materials, EarlyView.
This work establishes a systematic framework to discriminate how bulk and interface phenomena affect charge transport in ultrathin P‐doped silicon‐on‐insulator (SOI) films. For Si films below 15 nm, electrical characterization demonstrates that interface states drive charge transport, shifting the metal‐insulator transition (MIT) critical dopant ...
Andrea Pulici   +8 more
wiley   +1 more source

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

open access: yesAdvanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster   +11 more
wiley   +1 more source

Matter from Space [PDF]

open access: yes, 2009
General Relativity offers the possibility to model attributes of matter, like mass, momentum, angular momentum, spin, chirality etc. from pure space, endowed only with a single field that represents its Riemannian geometry.
Giulini, Domenico
core  

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