Results 71 to 80 of about 713,469 (282)
Graphene‐Based Wearable Textile Triboelectric Nanogenerators and Biomechanical Sensors
Advanced Materials Technologies, EarlyView.This study presents a wearable textile‐based triboelectric nanogenerator (T‐TENG) using sprayed graphene enhanced with a PVA adhesion layer. The graphene‐based electrode demonstrates high electrical conductivity and robustness to multiple bends. The fabricated T‐TENG provides stable and efficient output, with strong responsiveness to biomotion.
Hongyang Dang +4 more
wiley +1 more source
Solving Pell’s Equation by Lower-Order Convergents
Revista de CienciasThe method of continued fractions provides the smallest non-trivial integer solution of Pell’s equation. This solution comes from the convergent of the continued fraction of the square root of an integer number that is not a square at the end of its ...
Luis Alberto Alba-Sarria
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Integer Solutions Of Linear Equations
, 1997 Definitions and properties of the integer solutions of linear equations.
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Complete Solutions to Mixed Integer Programming
American Journal of Computational Mathematics, 2013 This paper considers a new canonical duality theory for solving mixed integer quadratic programming problem. It shows that this well-known NP-hard problem can be converted into concave maximization dual problems without duality gap. And the dual problems can be solved, under certain conditions, by polynomial algorithms.
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Sparsity of Integer Solutions in the Average Case [PDF]
, 2019 Fixed some typos from the IPCO ...
Oertel, Timm +2 more
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Advanced Optical Materials, EarlyView.Whispering‐gallery‐mode microresonators with sharp resonant peaks enable photonic barcoding. Similar to a chameleon, a rare‐earth‐free microcavity with π‐conjugated PAHs enables visibleto‐near infrared color generation from a single microbead. The unique resonat emission (spectral barcode) can be dynamically transformed via excitation wavelength change,
Barun Kumar Barman +6 more
wiley +1 more source
Diophantine equations related to quasicrystals: a note
, 2001 We give the general solution of three Diophantine equations in the ring of integer of the algebraic number field ${\bf Q}[{\sqr 5}]$. These equations are related to the problem of determination of the minimum distance in quasicrystals with fivefold ...
Pelantová, E., Perelomov, A. M.
core +2 more sources
Phototunable Polarization Volume Gratings Driven by Chiral Hydrazone Switches
Advanced Optical Materials, EarlyView.Chiral hydrazone photoswitches incorporated into polarization volume gratings enable light‐driven, reversible modulation of optical properties. UV and blue light irradiation reversibly alter the hydrazone isomer ratio, leading to tunable diffraction efficiency and spectral response across the visible spectrum.
Artem Boichuk +4 more
wiley +1 more source
Population fusion optimization algorithm for GNSS integer ambiguity resolution based on PSO and AFSA
工程科学学报Carrier phase measurement plays a crucial role in achieving rapid and high-precision positioning within a global navigation satellite system (Global navigation satellite system, GNSS).
Yingqing GUO +5 more
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The occurrence of prime numbers revisited
GECONTEC: Revista Internacional de Gestión del Conocimiento y la Tecnología, 2016 Based on an arithmetical and autocatalytic approach, the authors propose a solution for the occurrence of prime numbers. Exact arithmetical calculations are provided for: the closest prime to any given positive integer (or any number of bigger or smaller
Ernesto Tapia Moore, José Tapia Yañez
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