Results 81 to 90 of about 208,740 (293)

Optimized Selenium‐Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Excessive water production in mature oil fields necessitates robust shut‐off treatments, yet conventional polymer gels often fail under high‐temperature and high‐salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium‐doped Ag/AgO–ZnO nanocomposites synthesized via a novel green ...
Fadhil F. Sead   +8 more
wiley   +1 more source

The Arab Spring and Russia's Middle East Policy

open access: yesMehmet Akif Ersoy Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi
Russia's Middle East policy has undergone a significant change following the occurrence of the Arab Spring. The main reason for this change was the new strategic realities created by the Arab Spring in the region.
Ali Samir Merdan, Halit Hamzaoğlu
doaj   +1 more source

Enhanced Rheological and Filtration Performance of Drilling Fluids Using Fe3O4/Saponin/Cu(II) Nanocomposites: Synthesis, Characterization, and Application

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Drilling fluids used in high‐performance well operations often struggle to maintain rheological stability, colloidal dispersion, and filtration control under harsh downhole conditions. This study engineered a multifunctional Fe3O4@Saponin/Cu(II) nanocomposite to address these challenges.
Kassem Al Attabi   +9 more
wiley   +1 more source

Islamic Political Thought after the Arab Spring

open access: yesAmerican Journal of Islam and Society, 2013
On December 7, 2012, Ermin Sinanovic (assistant professor, Department of Political Science, United States Naval Academy, Annapolis, MD) presented his “Islamic Political Thought after the Arab Spring,” at the headquarters of the International Institute of
Jay Willoughby
doaj   +1 more source

Two‐Dimensional Flow and Thermal Energy Transfer in Non‐Newtonian Casson–Carreau Ternary Hybrid Nanofluids Over Stationary and Moving Wedge Surfaces With Radiation and Magnetic Field Effects

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Efficient thermal management in advanced industrial systems requires improved heat transfer performance, particularly under non‐Newtonian fluid behavior and complex surface geometries. This study investigates the two‐dimensional flow and heat transfer characteristics of ternary hybrid nanofluids over both stationary and moving wedge surfaces ...
A. O. Akindele   +4 more
wiley   +1 more source

« 20 février ». Discours et portraits d’un mouvement de révolte au Maroc

open access: yesL’Année du Maghreb, 2012
This article focuses on the implications of the “Arab Spring” on the only monarchy in the Maghreb. Though less dramatic than in neighboring countries, this “spring” did promote constitutional reform and early elections.
Cédric Baylocq, Jacopo Granci
doaj   +1 more source

Impact of Cattaneo–Christov Heat and Mass Flux on MHD Hybrid Nanofluid Flow Over an Extending Surface With Convective and Mass Flux Effects

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the flow of a magnetized hybrid nanofluid over a permeable stretching surface. The mass and thermal transport within the system is regulated using the Cattaneo–Christov flux theory. The fluid is additionally subjected to thermophoresis, chemical reaction, Brownian motion, and activation energy effects.
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

THE RELIGIOUS FACTOR IN THE «ARAB SPRING»

open access: yesVestnik MGIMO-Universiteta, 2013
A huge wave of mass protests for the last years has lead to a collapse of many longstanding traditional regimes in some Arab states (Egypt, Tunisia, Libya and Yemen).
A. V. Krylov
doaj   +1 more source

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