Results 191 to 200 of about 4,791 (276)

Fracture propagation and water seepage behavior in overburden strata at Tunbao coal mine. [PDF]

Sci Rep
Dong J, Liu H, Sun W, Liu X, Tao Z.
europepmc   +1 more source

Compressive deformability and flexural fracture energy of high-strength concrete with bamboo fibers. [PDF]

Sci Rep
Kaźmierowski M, Siemiginowski M, Kordasz M, Drzazga M.   +3 more
europepmc   +1 more source

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

Asia-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, Farag M. A. Altalbawy, M. Sudhakara Reddy, Badri Narayan Sahu, Sridharan Sundharam, Sanjeev Kumar, Atreyi Pramanik, Aseel Smerat, Fatimah Pashtun   +8 more
wiley   +1 more source

Analysis of water-permeable fractured zone in weakly cemented overburden considering rock strain-softening. [PDF]

Sci Rep
Xue S, Wang Q, Song Z.
europepmc   +1 more source

Synergistic Physicochemical Inhibition of Reactive Shale Formations Using Hydrothermally Synthesized Hydroxyapatite Nickel Tungstate Nanocomposites in Water‐Based Drilling Fluids

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Wellbore instability driven by the volumetric expansion of reactive shale formations remains a primary operational challenge in modern drilling engineering, causing severe mechanical failures and substantial economic deficits. The objective of this study is to formulate and evaluate a novel dual‐action chemical additive capable of ...
Ghaleb Oriquat, Basim Abdul Alrhym, A. C. Umamaheshwer Rao, Shivam P. Chaudhary, Pardeep Singh Bains, Ripendeep Singh, Murotov Nurshod, Rasulbek Eshmetov, Ahmad Abumalek   +8 more
wiley   +1 more source

Characteristics of overburden failure and evolution of fractures in fully mechanized top coal mining face. [PDF]

Sci Rep
Wang X, Liu F.
europepmc   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Chitosan/Gelatin Hydrogels With Hydroxyapatite/Silver Nanoparticles: A Dual Antimicrobial and Biocompatible Platform for Bone Regeneration

Journal of Applied Polymer Science, EarlyView.
Chitosan/gelatin hydrogels containing hydroxyapatite or hydroxyapatite/silver nanoparticles were developed and evaluated for bone tissue engineering applications, demonstrating biocompatibility and antimicrobial activity. ABSTRACT Bone tissue engineering demands multifunctional biomaterials capable of promoting regeneration while preventing local ...
Elisabeth Assis Martins Machado, Anne Caroline da Silva Rocha, Lívia Rodrigues de Menezes   +2 more
wiley   +1 more source

An inverse analysis method for estimating tension softening constitutive of quasi-brittle materials under monotonic loading. [PDF]

Sci Rep
Liu D, Guo Y, Chen H.
europepmc   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

Journal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli, Jacob L. Pretko, Christopher W. Seay, Steven R. Lustig   +3 more
wiley   +1 more source