Results 101 to 110 of about 4,430,718 (389)

Synthesis and Characterization of Ag–Fe Bimetallic Nanoparticles and Nanocomposites (Alloys and Core–Shells) for Photocatalytic Degradation of Bromophenol Blue Dye Using Grewia optiva Leaf Extract

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Ag–Fe bimetallic nanoparticles (alloy and core–shell structures) were synthesized using Grewia optiva leaf extract through a green, phytochemical‐mediated approach. The effects of pH, temperature, extract concentration, and Ag:Fe molar ratio on nanoparticle formation were systematically optimized, enabling size‐controlled and morphologically ...
Sehrish Asad   +6 more
wiley   +1 more source

Root cause analysis of rough conical seat grinding problem in fuel pump cylinder head by Shainin methodology

open access: yesMATEC Web of Conferences, 2018
Problem solving plays a major role in quality engineering and it is popularly adopted by manufacturing industry. This study is aimed to determine root cause for rejection of cylinder head due to rough conical grinding problem by Shainin method.
Kadam Sanket Shankar   +2 more
doaj   +2 more sources

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

Preparation and Performance Evaluation of a Self‐Generated Particle Plugging Agent Based on Thermosetting Resin

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A thermosetting in situ curing resin microsphere system has been developed. It has controllable phase transition time and particle size. This system addresses the current challenges of low strength, shear susceptibility, and short phase transition time in polymer microsphere blockers and thermoplastic particle blockers.
Baolei Jiao   +5 more
wiley   +1 more source

Scheduling Algorithm for Mission Planning and Logistics Evaluation (SAMPLE). Volume 1: User's guide [PDF]

open access: yes
An interactive computer program for automatically generating traffic models for the Space Transportation System (STS) is presented. Information concerning run stream construction, input data, and output data is provided.
Dupnick, E., Wiggins, D.
core   +1 more source

Periportal and Puncture Capsulotomy Techniques Have Similar Outcomes to Traditional Capsulotomies With Closure in Hip Arthroscopy: A Systematic Review and Meta‐analysis of 2‐Year Outcomes

open access: yesArthroscopy, EarlyView.
Purpose To systematically evaluate capsulotomy techniques through patient‐reported outcome measures, rates of revision arthroscopy, conversion to total hip arthroplasty, and achievement of clinically meaningful outcomes. Methods PubMed, Scopus, and Embase databases were queried in June 2024 for studies that could be used to compare capsular management ...
Brandon J. Allen   +9 more
wiley   +1 more source

Per‐ and Polyfluoroalkyl Substances and Knee Osteoarthritis: Data From the Osteoarthritis Initiative

open access: yesArthritis &Rheumatology, EarlyView.
Objective To examine whether concentrations of specific per‐ and polyfluoroalkyl substances (PFAS) and a mixture of PFAS relate to incident knee osteoarthritis (KOA) and knee pain progression. Methods Among a case‐cohort sample from the OA Initiative (n = 1,878), we examined associations of serum concentrations of eight PFAS with odds of developing ...
Jeffrey B. Driban   +14 more
wiley   +1 more source

Far, But Not Far Enough: An Idealist Critique of the Racial Equality Directive

open access: yesCroatian Yearbook of European Law and Policy, 2008
Racial discrimination in theory, but also in the reality of today’s Europe, is a multifaceted problem. There are no clear boundaries between the personal and social attributes of ‘race’, ethnicity, religion, culture, nationality or national origin.
Tena Šimonović Einwalter
doaj   +1 more source

Gender Equity in Rheumatology Research: Global Analysis of Authors

open access: yesArthritis &Rheumatology, EarlyView.
Objective To investigate gender representation of authors in rheumatology research over the last decade. Methods Using metadata from original and review articles published between 2015 and 2024 in SCImago top two quartile (Q1, Q2) rheumatology journals, author gender was classified using two public databases.
Michael Girdwood   +7 more
wiley   +1 more source

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