Results 51 to 60 of about 829 (116)

From Origami to Bistable and Laminate Structures: A Review for Multifunctional Applications from Structural Perspective of Shape‐Changing Structures

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 2, February 2026.
This review explores how shape‐changing structures—origami, bistable, and laminate structures—enable multifunctionality in soft robotics and metamaterials. Starting from structural design, it examines core principles, real‐world applications, and ongoing challenges.
Lingchen Kong, Yaoyao Fiona Zhao
wiley   +1 more source

THREE-VARIABLE ALTERNATING TRIGONOMETRIC FUNCTIONS AND CORRESPONDING FOURIER TRANSFORMS

open access: yesActa Polytechnica, 2016
The common trigonometric functions admit generalizations to any higher dimension, the symmetric, antisymmetric and alternating ones. In this paper, we restrict ourselves to three dimensional generalization only, focusing on alternating case in detail ...
Agata Bezubik, Severin Pošta
doaj   +1 more source

Transfinite Patches for Isogeometric Analysis

open access: yesMathematics
This paper extends the well-known transfinite interpolation formula, which was developed in the late 1960s by the applied mathematician William Gordon at the premises of General Motors as an extension of the pre-existing Coons interpolation formula. Here,
Christopher Provatidis
doaj   +1 more source

Interpolation-based coordinate descent method for parameterized quantum circuits

open access: yesCommunications Physics
Parameterized quantum circuits (PQCs) are fundamental to many hybrid quantum-classical algorithms. However, existing structure-based optimizers for the training of PQCs, such as Rotosolve and sequential minimal optimization, rely on heuristic node ...
Zhijian Lai   +4 more
doaj   +1 more source

A fifth order block methods for solving second-order stiff ordinary differential equations using trigonometric functions and polynomial function as the basis function

open access: yesAfrican Scientific Reports
The numerical solution of second-order ordinary differential equations (ODEs) is examined in this work through a four-step linear multistep method. It employs a combination of trigonometric and polynomial functions as the approximate solution to the ...
Opoyemi O. Enoch, Catherine O. Alakofa
doaj   +1 more source

Construction of Basis Functions for Finite Element Methods in a Hilbert Space

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
The present work is devoted to construction of the optimal interpolation formula exact for trigonometric functions sin(ωx) and cos(ωx). Here the analytical representations of the coefficients of the optimal interpolation formula in a certain Hilbert ...
Hayotov, A.R., Doniyorov, N.N.
doaj   +1 more source

The Quasi-Cubic Trigonometric Cardinal Spline With Local Shape Adjustability

open access: yesJournal of Mathematics
The cubic Cardinal spline curve is a fundamental tool in the field of interpolation curve design. However, the cubic Cardinal spline curve cannot adjust its shape locally through the free parameters, and it struggles to accurately represent common ...
Juncheng Li, Shanjun Liu, Chengzhi Liu
doaj   +1 more source

HARMONIC INTERPOLATING WAVELETS IN NEUMANN BOUNDARY VALUE PROBLEM IN A CIRCLE

open access: yesUral Mathematical Journal, 2019
The Neumann boundary value problem (BVP) in a unit circle is discussed. For the solution of the Neumann BVP, we built a method employing series representation of given \(2 \pi\)-periodic continuous boundary function by interpolating wavelets consisting ...
Dmitry A. Yamkovoi
doaj   +1 more source

Hybrid Time-Base Device for Coherent Sampling Oscilloscope

open access: yesMeasurement Science Review, 2019
In this paper, a hybrid time-base (HTB) device for the coherent sampling oscilloscope is presented. The HTB device makes it possible to reduce the uncertainty of determining the time position of the sample in the horizontal channel of the sampling ...
Tankeliun Tomas   +2 more
doaj   +1 more source

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