Results 31 to 40 of about 1,676,951 (287)
Surface properties of solids using a semi-infinite approach and the tight-binding approximation [PDF]
, 1993 A semi-infinite approach (rather than a slab method or finite number of layers) is used to treat surface properties such as wave functions, energy levels, and Fermi surfaces of semi-infinite solids within the tight-binding (TB) approximation.
Källebring, Bruno +2 more
core +1 more source
Earth Sciences Research Journal, 2019 The physiographic features of Gujarat state of western India are unique, as they behaved dynamically with several alterations and modifications throughout the geological timescale.
Vishwa Joshi
doaj +1 more source
, 2018 For passive, lossless impenetrable metasurfaces, a design technique for arbitrary beam control of receiving, guiding, and launching is presented. Arbitrary control is enabled by a custom surface wave in an orthogonal polarization such that its addition ...
Kwon, Do-Hoon, Tretyakov, Sergei A.
core +1 more source
Geometry of wave propagation on active deformable surfaces [PDF]
, 2018 Fundamental biological and biomimetic processes, from tissue morphogenesis to soft robotics, rely on the propagation of chemical and mechanical surface waves to signal and coordinate active force generation. The complex interplay between surface geometry
Dunkel, Jörn +2 more
core +2 more sources
Insights into Metal Sheet Novelty Detection via Simulated Electromagnetic Ultrasonic Surface Wave
Buildings, 2022 Metal sheets have good performance and have been widely used. Different kinds of defects can be generated during the preparation and service of metal plates, which will cause the structural performance of the metal plates to decline, thus requiring ...
Yunlai Zhou +3 more
doaj +1 more source
Surface Acoustic Wave Oscillators [PDF]
, 1990 Then: are principal advances in the field of application of surface acoustic wave (SAW) delay lines and resonators in stable microwave frequency sources in the frequency range from 100 MHz to 1 GHz and above Advances, applications and fundamental ...
Sehmisch, Dieter, Trzeba, Erich
core
Surface Phason-Polaritons in Charge Density Wave Films
, 1997 The coupled non-radiative excitations of the electromagnetic field and phasons in films with a quasi one-dimensional charge density wave (CDW) are evaluated for P--polarization and CDW conducting axis inside the film.
Artemenko +9 more
core +2 more sources
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Design of a Polarization-Diverse Planar Leaky-Wave Antenna for Broadside Radiation
IEEE Access, 2019 The design of a K-band radial leaky-wave antenna is presented for polarization diversity applications. The antenna structure is constituted by an annular, radially periodic, and metallic strip grating printed on top of a single-layer grounded dielectric ...
Davide Comite +6 more
doaj +1 more source
Flow to strong coupling in the two-dimensional Hubbard model
, 2002 We extend the analysis of the renormalization group flow in the two-dimensional Hubbard model close to half-filling using the recently developed temperature flow formalism.
Honerkamp, C. +2 more
core +1 more source