Results 31 to 40 of about 21,383 (247)

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

XOR‐Logic Phase Coding Programmable Metasurface for Low Power‐Consumption Systems

Advanced Science, EarlyView.
By leveraging XOR logic, the biasing‐network complexity of 2D programmable metasurfaces is reduced from m×n to m+n through efficient row‐column control. This enables versatile functions including beam deflection and beamforming, facilitating applications in wireless communications and beyond.
Ruichao Zhu, Sai Sui, Junyan Dai, Qunyan Zhou, Yuxiang Jia, Yajuan Han, Yuxi Li, Shaojie Wang, Qiang Cheng, Jiafu Wang, Tie Jun Cui   +10 more
wiley   +1 more source

Sharp Integral Inequalities Based on a General Four-Point Quadrature Formula via a Generalization of the Montgomery Identity

International Journal of Mathematics and Mathematical Sciences, 2012
We consider families of general four-point quadrature formulae using a generalization of the Montgomery identity via Taylor’s formula. The results are applied to obtain some sharp inequalities for functions whose derivatives belong to 𝐿𝑝 spaces ...
J. Pečarić, M. Ribičić Penava
doaj   +1 more source

A Perturbed Milne’s Quadrature Rule for n-Times Differentiable Functions with L^p-Error Estimates

Axioms, 2023
In this work, a perturbed Milne’s quadrature rule for n-times differentiable functions with Lp-error estimates is derived. One of the most important advantages of our result is that it is verified for p-variation and Lipschitz functions.
Ayman Hazaymeh, Rania Saadeh, Raed Hatamleh, Mohammad W. Alomari, Ahmad Qazza   +4 more
doaj   +1 more source

Design for flexibility: An adjustable robust optimization approach with decision‐dependent uncertainty

AIChE Journal, EarlyView.
ABSTRACT Flexibility is a crucial characteristic of industrial systems that face increasing volatilities and is therefore essential to ensure feasible operation under uncertainty. Flexibility is often closely tied to the design of a system, and careful consideration must be taken to understand the trade‐off between design cost and operational ...
Jnana Sai Jagana, Sreekanth Rajagopalan, Satyajith Amaran, Qi Zhang   +3 more
wiley   +1 more source

A Numerical Solution for the Lifting Surface Integral Equation [PDF]

INCAS Bulletin, 2014
In this paper, we present a new numerical treatment of the lifting surface integral equation (LSIE) in the case of rectangular wing planform. The kernel of this equation possesses a strong singularity in Hadamard sense. First the equation is transformed
Adrian STOICA
doaj   +1 more source

Thermal noise and oscillations of photon distribution for squeezed and correlated light

, 1993
The oscillations of photon distribution function for squeezed and correlated light are shown to decrease when the temperature increases.The influence of the squeezing parameter and photon quadrature correlation coefficient on the photon distribution ...
Caves, Dodonov, Dodonov, Dodonov, Dodonov, Dodonov, Glauber, Heisenberg, Hollenhorst, L. Rosa, O.V. Man'ko, Robertson, Schleich, Schrödinger, Stoler, V.I. Man'ko, V.V. Dodonov, Vourdas   +17 more
core   +1 more source

Spline quadrature formulas

Journal of Approximation Theory, 1984
Quadrature formulae for splines with equispaced knots are developed in this paper. For special classes of splines, some simple explicit expressions for the weights in the quadrature formulae in terms of the zeros of the Euler-Frobenius polynomials are given and it is shown that these weights are positive. Some quadrature formulae are derived.
Busenberg, Stavros N, Fisher, David
openaire   +1 more source

Advanced Virtual Impedance for Power‐Sharing Improvement in Microgrids Using Different SOGI Methods: A Comparative Study

Energy Technology, EarlyView.
Advanced virtual impedance control integrating multiple second‐order generalized integrator (SOGI) variants—SOGI, ESOGI, MSOGI, and DSOGI—enhances power and harmonic sharing accuracy in islanded microgrids. The comparative study quantifies performance–complexity trade‐offs, demonstrating up to 65% total harmonic distortion (THD) reduction and improved ...
Camelia Ait Hammouda, Abdellah Benallal, Rafik Bradai, Adrian Ilinca   +3 more
wiley   +1 more source

Vibration analysis of airfoil on hereditary deformable suspensions [PDF]

E3S Web of Conferences, 2019
This paper describes the analyses of the nonlinear vibrations and dynamic stability of an airfoil on hereditary-deformable suspensions. The model is based on two-degree-of-freedom structure in geometrically nonlinear statements. It provides justification
Usmonov Botir, Rakhimov Quvvatali
doaj   +1 more source