Results 71 to 80 of about 6,842 (303)
Columnar Radio Refractivity Of The Troposphere At Ashodi And Kano
, 2005 Spatial-temporal, distributions of columnar radio refractive index in the troposphere of two tropical stations – Kano and Oshodi are considered.
B Adeyemi, Adeyemi, B
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Advanced Functional Materials, EarlyView.The polymer wall stabilized dye‐doped liquid crystals (PWLCs) enhance the sensitivity of photoinduced molecular reorientation in dye‐doped LC systems. The PWLC with an invisible polymer wall successfully reduces the threshold intensity and functions as an optical limiter under the incidence of low intensity light laser source.
Junki Yokota +6 more
wiley +1 more source
Determination of Refractivity of Ionic Liquid [C5mim][Gly]
, 2010 The refractivity of the ionic liquid 1-ethyl-3-methyl-imidazolium ([C5mim][Gly]) were measured by a Abbe refraction instrument . According to SAM, the refractivity of a series samples were measured in the temperature range of (293.15 to 343.15) K, with ...
房大维 +3 more
core
JAMA: The Journal of the American Medical Association, 1895 These eighteen propositions will assist the beginner to more readily understand the many pages treating of the same subjects in all our text-books. With a second lecture on the lenses which correct the errors of refraction, and a third lecture on the frames which hold the lenses which correct the errors of refraction, we will have completed the "House
openaire +1 more source
Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source
Principal Component Analysis Of The Worldwide Oceanic Rf Refractivity Database
, 2015 Refractivity causes ducting of transmitted RF signals over the ocean. There is apparent redundancy in the RF refractivity database for oceanic environments with weather conditions that negatively impact RF systems.
Phillips, Darian
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Advanced Functional Materials, EarlyView.Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A dye‐based photoinitiator acting as a structure‐directing element, guides the formation of a cholesteric polymer network that behaves as a chirped photonic structure with dissipative chiral coupling. Photopolymerization freezes a depth‐dependent helical pitch, broadening the Bragg resonance spectrum.
Alfredo Mazzulla +2 more
wiley +1 more source
Comparison Between Radar and Automatic Weather Station Refractivity Variability
, 2016 International audienceWeather radars measure changes in the refractive index of air in the atmospheric boundary layer. The technique uses the phase of signals from ground targets located around the radar to provide information on atmospheric refractivity
Hallali, Ruben +2 more
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Janus Photonic Graphics by Stratified Assembly of Two Distinct Colloids
Advanced Functional Materials, EarlyView.Double‐sided Janus photonic micropatterns with vivid structural colors are fabricated through a single‐step bottom‐up strategy. Density‐driven stratification and depletion‐mediated crystallization of PMMA and PS binary colloids lead to exclusive lattices on opposite surfaces under centrifugal force.
Young Geon Kim +4 more
wiley +1 more source