Results 21 to 30 of about 7,182 (158)

Compressed Sensing-Based Simultaneous Recovery of Magnitude and Phase MR Images via Dual Trigonometric Sparsity

open access: yesIEEE Access, 2021
Complex-valued Magnetic Resonance Imaging (MRI) is widely used in clinical diagnosis. The magnitude images are mainly used for structure visualization, and the phase images reveal tissue properties, such as magnetic susceptibility and fluid flow ...
Wei He   +4 more
doaj   +1 more source

Generalized Wilker-type inequalities with two parameters

open access: yesJournal of Inequalities and Applications, 2016
In the article, we present certain p , q ∈ R $p, q\in\mathbb{R}$ such that the Wilker-type inequalities 2 q p + 2 q ( sin x x ) p + p p + 2 q ( tan x x ) q > ( < ) 1 and ( π 2 ) p ( sin x x ) p + [ 1 − ( π 2 ) p ] ( tan x x ) q > ( < ) 1 $$\begin{aligned}
Hong-Hu Chu   +3 more
doaj   +1 more source

Monotonicity and absolute monotonicity for the two-parameter hyperbolic and trigonometric functions with applications

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we present the monotonicity and absolute monotonicity properties for the two-parameter hyperbolic and trigonometric functions. As applications, we find several complete monotonicity properties for the functions involving the gamma function
Zhen-Hang Yang, Yu-Ming Chu
doaj   +1 more source

MADM Technique Using Tangent Trigonometric SvNN Aggregation Operators for the Teaching Quality Assessment of Teachers [PDF]

open access: yesNeutrosophic Sets and Systems, 2022
In current Chinese higher education, the teaching quality assessment (TQA) of teachers in colleges/universities is an essential way to promotes the improvement of teacher teaching quality in the teaching process.
Mailing Zhao, Jun Ye
doaj   +1 more source

Classification of errors in determining trigonometry function values at standard positions

open access: yesJournal of Research and Advances in Mathematics Education, 2023
One of the important materials to study in a trigonometry course is the value of trigonometric functions in standard positions. However, the results of preliminary research show that there are still many first semester students who experience errors in ...
Yayan Eryk Setiawan Setiawan, Sunardi
doaj   +1 more source

Positive Data Visualization Using Trigonometric Function

open access: yesJournal of Applied Mathematics, 2012
A piecewise rational trigonometric cubic function with four shape parameters has been constructed to address the problem of visualizing positive data.
Farheen Ibraheem   +3 more
doaj   +1 more source

Elastic coupled local buckling strength of I‐shaped steel member in uniform bending

open access: yesJapan Architectural Review, 2023
This research aims to theoretically derive a closed‐form evaluation formula for the coupled local buckling strength of I‐shaped steel members under uniform bending.
Kazuya Mitsui, Ryohei Kuwada
doaj   +1 more source

Hankel determinant of order three for familiar subsets of analytic functions related with sine function

open access: yesOpen Mathematics, 2019
In this paper we define and consider some familiar subsets of analytic functions associated with sine functions in the region of unit disk on the complex plane. For these classes our aim is to find the Hankel determinant of order three.
Arif Muhammad   +4 more
doaj   +1 more source

Closed-Form Solutions to a Forced Damped Rotational Pendulum Oscillator

open access: yesMathematics, 2022
In this investigation, some analytical solutions to both conserved and non-conserved rotational pendulum systems are reported. The exact solution to the conserved oscillator (unforced, undamped rotational pendulum oscillator), is derived in the form of a
Alvaro H. Salas   +4 more
doaj   +1 more source

Novel Results based on Generalisation of Some Integral Inequalities for Trigonometrically -P Function

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
Trigonometric P-function is defined as a special case of h-convex function. In this article, we used a general lemma that gives trapezoidal, midpoint, Ostrowski, and Simpson type inequalities.
Sercan Turhan
doaj   +1 more source

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