Results 81 to 90 of about 138,992 (294)
Generalized Eaton Lens at Arbitrary Refraction Angles [PDF]
arXiv, 2011 We extended the refraction angle of the Eaton lens into arbitrary angles. The refractive index of the Eaton lens is not analytical and can be obtained by numerical calculations only except in the case of the retroreflector. We introduced an approximation for the refractive index of the generalized Eaton lens.
arxiv
Wetting of Surface Grafted Hydrophilic‐b‐Hydrophobic Block Copolymer Brushes
Advanced Functional Materials, EarlyView.The wetting properties of surface grafted diblock copolymer brushes are influenced by the thickness of the hydrophilic bottom block and the hydrophobic top block. The surface adapts in presence of water and the contact angles of the bottom block shine through. Abstract The wetting of diblock copolymer brushes by water is studied.
Benjamin Leibauer +7 more
wiley +1 more source
Material Made of Artificial Molecules and Its Refraction Behavior under Microwave [PDF]
arXiv, 2014 Focal-plane imaging with microwave and millimeter wave has many potential applications. The bad resolution is a main shortcoming of this technique at present. In this paper, influence of frequency of electromagnetic wave on the refractive energy is analyzed. According to the refractive mechanism of electromagnetic induction, the principle for designing
arxiv
Advanced Functional Materials, EarlyView.Surface‐attached multilayer micromagnet systems are fabricated by two‐photon crosslinking. The pillar‐shaped micro actuators consist of a soft and flexible surface‐attached cell‐repellent hydrogel layer at the bottom, acting as a hinge and a cell‐adhesive hydrophobic polymer filled with magnetic nanoparticles.
Nicolas Geid +5 more
wiley +1 more source
Wave Trajectory Study on the Coast of Lhoknga, Aceh Besar, Indonesia: A Numerical Model Approach
Civil Engineering Dimension, 2018 A numerical model of wave trajectory using shoaling and refraction formula was proposed in the coastal waters of Lhoknga, Aceh Besar, Indonesia. The developed model used a two dimensional (2D) numerical methods for wave trajectory with the input of wave ...
Ichsan Setiawan, Mohammad Irham
doaj +1 more source
XXXII.—Molecular refraction and dispersion of various substances [PDF]
, 1891 J. H. Gladstone
openalex +1 more source
Enhanced Terahertz Spectroscopy of a Monolayer Transition Metal Dichalcogenide
Advanced Functional Materials, EarlyView.An ad‐hoc engineered metallic surface is employed to perform enhanced terahertz spectroscopy of a monolayer transition metal dichalcogenide (TMD). Thanks to a local absorption boost of 104, this technique allows for the extraction of the phonon resonance features and effective permittivity of the 2D material, paving the way for the rational design of ...
Xin Jin +11 more
wiley +1 more source
Controlling Refraction Using Sub-Wavelength Resonators
Applied Sciences, 2018 We construct metamaterials from sub-wavelength nonmagnetic resonators and consider the refraction of incoming signals traveling from free space into the metamaterial.
Yue Chen, Robert Lipton
doaj +1 more source
Optical Hydrogen Sensing Materials for Applications at Sub‐Zero Temperatures
Advanced Functional Materials, EarlyView.This study demonstrates the viability of optical hydrogen sensors at temperatures as low as −60°C. Using advanced metal hydride materials, the sensors detect hydrogen with high sensitivity, speed, and stability across a wide range of concentrations. These findings open doors for safe hydrogen detection in extreme cold, enabling applications in aviation,
Ziqing Yuan +4 more
wiley +1 more source
MODELING PROCESS OF DISTRIBUTION OF LIGHT FLOW IN THE ENVIRONMENT WITH DIFFUSING CENTERS
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019 A mathematical model is developed for calculating parameters of light fluxes propagating through a light-scattering and absorbing medium. Single crystals of paratellurite and germanium with known optical parameters and densities of various absorbing and ...
S.S. Rybina, S.A. Tretyakov
doaj +1 more source