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Optimization of tank engine crank shaft material properties
(
Taylor and Francis Ltd.
, 2023 , Article)
Metals and coating materials, with best material properties are highly desired in the field of engineering to control the stresses and strains, that play important role in design strategies. The crankshaft, an important ...
An analytical study of employee happiness in service sectors: A pilot study
(
Natural Sciences Publishing
, 2021 , Article)
The present paper aims to investigate happiness levels of employees in services and underpin disparate evidences from existing literature, to any reported differences in the levels of happiness among employees. This paper ...
Using Grades in Core Curriculum Chain Courses as Predictors of Academic Performance in Subsequent Courses: A Study at Qatar University
(
SAGE Publications Inc.
, 2023 , Article)
The study aimed to investigate students' final grades in a linked course or chain course to determine any effect on students' academic performance in their next linked course. Courses with high D, F, and W grades were ...
A New System with a Self-Excited Fully-Quadratic Strange Attractor and Its Twin Strange Repeller
(
World Scientific
, 2021 , Article)
In nonlinear dynamics, the study of chaotic systems has attracted the attention of many researchers around the world due to the exciting and peculiar properties of such systems. In this regard, the present paper introduces ...
A Chaotic Quadratic Bistable Hyperjerk System with Hidden Attractors and a Wide Range of Sample Entropy: Impulsive Stabilization
(
World Scientific
, 2021 , Article)
Hidden attractors generated by the interactions of dynamical variables may have no equilibrium point in their basin of attraction. They have grabbed the attention of mathematicians who investigate strange attractors. ...
Discontinuous coupling and transition from synchronization to an intermittent transient chimera state
(
Sharif University of Technology
, 2021 , Article)
Coexistence of coherent and incoherent clusters, called chimera state, has been observed in different coupling configurations. A majority of studies have considered a static scheme for the network. In this paper, synchronization ...
Measuring skewness: We do not assume much
(
Sharif University of Technology
, 2021 , Article)
Since skewness plays a vital role in different engineering phenomena, its accurate measurement gains significance. Several measures have been taken to quantify the extent of skewness in distributions over the years, but ...
An efficient image encryption scheme based on double affine substitution box and chaotic system
(
Elsevier
, 2021 , Article)
Privacy of information is one of the most important and unavoidable issues in our digitally advance era. A huge amount of information transmitted over different servers and networking protocols. The sphere of digitally ...
SARS-CoV-2 infection hospitalization, severity, criticality, and fatality rates in Qatar
(
Nature Research
, 2021 , Article)
The SARS-CoV-2 pandemic resulted in considerable morbidity and mortality as well as severe economic and societal disruptions. Despite scientific progress, true infection severity, factoring both diagnosed and undiagnosed ...
Rough oscillatory singular integrals on ℝⁿ
(
Instytut Matematyczny
, 2014 , Article)
We establish sharp bounds for oscillatory singular integrals with an arbitrary real polynomial phase P. The kernels are allowed to be rough both on the unit sphere and in the radial direction. We show that the bounds grow ...