Results 51 to 60 of about 118,678 (124)

A Simple and Efficient Algorithm for Nonlinear Model Predictive Control

, 2017
We present PANOC, a new algorithm for solving optimal control problems arising in nonlinear model predictive control (NMPC). A usual approach to this type of problems is sequential quadratic programming (SQP), which requires the solution of a quadratic ...
Patrinos, Panagiotis, Sopasakis, Pantelis, Stella, Lorenzo, Themelis, Andreas   +3 more
core   +1 more source

A Hybrid Numerical Framework Based on Radial Basis Functions and Finite Difference Method for Solving Advection–Diffusion–Reaction-Type Interface Models

Mathematical and Computational Applications
Advection–diffusion–reaction-type interface models have wide-ranging applications in environmental science, chemical engineering, and biological systems, particularly in modeling pollutant transport in groundwater, reactive flows, and drug diffusion ...
Muhammad Asif, Javairia Gul, Mehnaz Shakeel, Ioan-Lucian Popa   +3 more
doaj   +1 more source

Characteristics of a gigahertz patch antenna of the «fractal tree» type

Физика волновых процессов и радиотехнические системы
Background. According to a number of researchers, fractal antennas, including those for the gigahertz frequency range, have a fundamental multi-frequency, which makes it possible to reduce their number in a compact device for wireless communication ...
Rudolf A. Brazhe, Egor Yu. Lebedev
doaj   +1 more source

Fast Computation of Steady-State Response for Nonlinear Vibrations of High-Degree-of-Freedom Systems

, 2018
We discuss an integral equation approach that enables fast computation of the response of nonlinear multi-degree-of-freedom mechanical systems under periodic and quasi-periodic external excitation.
Breunung, Thomas, Haller, George, Jain, Shobhit   +2 more
core   +1 more source

Jacobian matrix: a bridge between linear and nonlinear polynomial-only problems

, 1999
By using the Hadamard matrix product concept, this paper introduces two generalized matrix formulation forms of numerical analogue of nonlinear differential operators. The SJT matrix-vector product approach is found to be a simple, efficient and accurate
Chen, W.
core  

Modelo matemático aplicado a la dinámica del nitrógeno en suelos manejados con praderas del sur de Chile Mathematical model applied to the dynamica of nitrogen in soils under pasture in southern Chile

Ciencia del Suelo, 2011
La eficientización de la fertilización en los sistemas pratenses, son una necesidad para los ganaderos del sur de Chile, por su importancia en la alimentación del ganado.
Paulina Alejandra Salazar Espinoza, Juan Alfredo Gómez Fernández, Pedro Antonio Núñez Ramos   +2 more
doaj  

Combining quasi-one-dimensional modeling with region-wise structure analysis for rapid technology computer-aided design simulations of gate-all-around MOSFETs. [PDF]

Commun Eng
Lee KW, Kim IK, Jung SW, Jang MS, Hong SM.   +4 more
europepmc   +1 more source

Biomechanical Fracture Thresholds of the Tibia and Fibula Under Axial and Multi-axial Loading: A Systematic Review. [PDF]

Cureus
Zain Ul Abidin M, Mumtaz M, Shetty S, Shehata Abdelmesih SR, Suliman MGH, Abdullah S.   +5 more
europepmc   +1 more source

An Efficient Quasi-Newton Method with Tensor Product Implementation for Solving Quasi-Linear Elliptic Equations and Systems. [PDF]

J Sci Comput
Hao W, Lee S, Zhang X.
europepmc   +1 more source

Wide-awake vs. regional anesthesia for carpal tunnel release: a prospective study on pain, grip strength, and sleep quality. [PDF]

BMC Surg
Bayrak A, Yalın M, Tıngır M, Çatal T, Öztürk V, Koluman AC.   +5 more
europepmc   +1 more source