Results 101 to 110 of about 710,395 (248)

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
core   +1 more source

Light‐Controlled Localized Delamination and Blistering of Azobenzene‐Containing Polymer Thin Films in an Aqueous Environment

Advanced Materials Interfaces, EarlyView.
When exposed to light of a defined wavelength, the photoisomerization of azobenzene chromophores leads to polymer reorientation, generating stresses that result in solvent‐facilitated localized delamination of the film from the substrate. Additionally, blisters that form spontaneously when exposed to an aqueous environment can be manipulated via ...
James Robert Benson, Jonas Strobelt, Nino Lomadze, Svetlana Santer, Stephan Eickelmann   +4 more
wiley   +1 more source

Spatial Homeotropic and Planar Liquid Crystal Alignment Patterning

Advanced Materials Interfaces, EarlyView.
A voltage‐assisted two‐step photoalignment methodology achieves precise micro‐patterning of alternating planar and homeotropic liquid crystal domains. Applying an AC electric field during in situ laser illumination minimizes phase retardation, reducing the required exposure dose. This cooperative mechanism enables high‐resolution spatial patterning and
Mingye Li, Inge Nys, Jeroen Beeckman
wiley   +1 more source

Radar-based refractivity maps using geostatistical interpolation [PDF]

Tropospheric refractivity, which is closely related to temperature, pressure, and relative humidity, is a valuable parameter for weather forecasting and climate analysis.
Nocelo López, Rubén, Darlington, Timothy, Sanchez Rama, Brais, Santalla del Río, Maria Veronica   +3 more
core   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Orthorhombic structure and optoelectronic properties of 3d transition metal diantimonides TMSb2 (TM2+ = V, Cr, Fe)

Physics Open
Inorganic transition-metal materials have attracted widespread attention in the field of opto-spintronics technology due to their unique optical and electronic structures.
H.-E. M. Musa Saad, A. Almeshal, B.O. Alsobhi   +2 more
doaj   +1 more source

Wafer‐Scale Top‐Down Patterning of Metal Halide Perovskites

Advanced Materials Technologies, EarlyView.
Wafer‐scale patterning of metal halide perovskite films is demonstrated on 150 mm substrates using a chemically amplified resist, polymethyl methacrylate (CAR‐PMMA) and a single reactive ion etching step. The streamlined process preserves film luminescence while defining submicrometer features across the full wafer, enabling dense, scalable integration
Federico Fabrizi, Ardeshir Esteki, Holger Lerch, Saeed Goudarzi, Liudmila Starodubtceva, Gerhard Müller‐Newen, Maryam Mohammadi, Max C. Lemme   +7 more
wiley   +1 more source

Zero‐Waste Manufacturing of Ophthalmic Lenses by Direct Fluidic Shaping in Arbitrary Domains

Advanced Materials Technologies, EarlyView.
Conventional ophthalmic lens manufacturing discards up to 97% of material through subtractive processes. The Cookie Cutter algorithm extends Fluidic Shaping to arbitrary rim geometries. The framework prescribes a spatially varying boundary height that, under neutral buoyancy and surface tension, shapes curable polymer into spherocylindrical lenses that
Yotam Katzman, Mor Elgarisi, Amos A. Hari, Jonathan Ericson, Omer Luria, Valeri Frumkin, Moran Bercovici   +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, UrsWelz-Biermann, 李建新, Urs Welz-Biermann   +3 more
core  

3D‐Printed Actuator Powered by Liquid Crystal Elastomer Muscles at the Water–Air Interface

Advanced Materials Technologies, EarlyView.
Soft robots for unstructured environments require responsive, durable actuators. Liquid crystal elastomers (LCEs) provide large reversible deformations under thermal or optical stimuli. Direct ink writing enables fabrication of LCE actuators integrated with silicone, with mesogen chemistry and oligomers optimized for printable inks.
Cecilie Ryberg, Stefan Pendlmayr, Jan Skov Pedersen, Jens Vinge Nygaard, Jan P. F. Lagerwall, Brigitte Städler   +5 more
wiley   +1 more source