Results 11 to 20 of about 2,516,127 (237)

A study on the thermoelastic interaction in two-dimension orthotropic materials under the fractional derivative model

Alexandria Engineering Journal, 2023
The extended thermoelastic theory with fractional derivative is described in this article to estimate temperature variation, displacement components, and stress components in two-dimensional orthotropic materials.
Aatef Hobiny, Ibrahim A. Abbas
doaj   +1 more source

A thermal optimization throughan innovative mechanism of free convection flow of Jeffrey fluid using non-local kernel

Case Studies in Thermal Engineering, 2021
Optimality for operating temperature can improve the reliability of thermodynamics of convection flow of Jeffrey fluid through mathematical techniques; this is because thermal convection is invoked in several engineering problems for knowingan accurate ...
Aziz Ullah Awan, Qasim Ali, Samia Riaz, Nehad Ali Shah, Jae Dong Chung   +4 more
doaj   +1 more source

New fractional model to analyze impacts of Newtonian heating, shape factor and ramped flow function on MgO–SiO2–Kerosene oil hybrid nanofluid

Case Studies in Thermal Engineering, 2022
In modern times, diathermal oils have piqued the attraction of various researchers due to their multiple significant industrial applications. The present work aims to investigate the heat transfer performance of a specific diathermal oil called kerosene ...
Asifa, Talha Anwar, Poom Kumam, Shah Muhammad   +3 more
doaj   +1 more source

Fractional transformations of generalised functions [PDF]

, 2009
A distributional theory of fractional transformations is developed. A constructive approach, based on the eigenfunction expansion method pioneered by A. H.
Lamb, Wilson, Khan, Khaula Naeem, McBride, Adam C.   +2 more
core   +3 more sources

Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium

Journal of Chemistry, 2021
A serious environmental disaster is looming on the horizon due to the indiscriminate release of heavy metals into the soil and wastewater from human industrial practices.
Fatima Khammour, Fatouma Mohamed Abdoul-Latif, Ayoub Ainane, Jalludin Mohamed, Tarik Ainane   +4 more
doaj   +1 more source

Random fractional Fourier transform : stochastic perturbations along the axis of propagation [PDF]

, 1999
The fractional Fourier transform (FRT) is known to be optically implementable with use of a medium with a perfect radial quadratic-index profile. Using the quantum-mechanical operator formalism, we examine the effects on the FRT action of such a medium
Abe, Sumiyoshi, Sheridan, John T.
core   +1 more source

Hydromagnetic free convection flow of viscous fluid between vertical parallel plates with damped thermal and mass fluxes

Alexandria Engineering Journal, 2019
In this article, hydromagnetic free convection flow of viscous fluid between two vertical plates is considered. The Caputo time-fractional derivative is used and the governing equations are fractionalized by means of generalized Fourier’s and Fick’s laws.
Zehui Shao, Nehad Ali Shah, Iskander Tlili, Usman Afzal, M. Saqib Khan   +4 more
doaj   +1 more source

Development of dispersive solid-phase microextraction coupled with high-pressure liquid chromatography for the preconcentration and determination of the selected neonicotinoid insecticides

Journal of Analytical Science and Technology, 2022
Neonicotinoid insecticides have raised a lot of societal concerns due to their environmental ubiquity and unique mode of action. Therefore, it is of great research interest to monitor their occurrence in the environmental waters. However, these compounds
Ngwako Joseas Waleng, Shirley Kholofelo Selahle, Anele Mpupa, Philiswa Nosizo Nomngongo   +3 more
doaj   +1 more source

Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water

Frontiers in Chemistry, 2020
In this study, a magnetic porphyrin-based porous organic polymer (MP-POP) nanocomposite was successfully synthesized according previous studies and applied as an adsorbent for simultaneous extraction and preconcentration of four neonicotinoid ...
Shirley K. Selahle, Shirley K. Selahle, Ngwako J. Waleng, Ngwako J. Waleng, Anele Mpupa, Anele Mpupa, Philiswa N. Nomngongo, Philiswa N. Nomngongo, Philiswa N. Nomngongo   +8 more
doaj   +1 more source

Investigation of Island/ Single Core and Archipelago/ Multicore Enriched Asphaltenes and Their Solubility Fractions by Thermal Analysis Coupled to High Resolution Fourier Transform Ion Cyclotron Resonance Mass Spectrometry [PDF]

Energy & Fuels, 2020
Despite extensive research, the molecular-level chemical characterization of asphaltenes, a highly aromatic solubility fraction of petroleum, remains an analytical challenge. This fraction is related to diverse problems in crude oil exploration, transportation, and refining.
Anika Neumann, Martha Liliana Chacón-Patiño, Ryan P. Rodgers, Christopher P. Rüger, Ralf Zimmermann   +4 more
openaire   +2 more sources