Results 51 to 60 of about 859,243 (336)

Relation Between First Arrival Time and Permeability in Self-Affine Fractures with Areas in Contact

open access: yes, 2012
We demonstrate that the first arrival time in dispersive processes in self-affine fractures are governed by the same length scale characterizing the fractures as that which controls their permeability. In one-dimensional channel flow this length scale is
  +7 more
core   +3 more sources

Removal of Steroid Hormone Micropollutants by an Electrochemical Carbon Nanotube Membrane Flow‐Through Reactor: Role of Concentration and Degradation Mechanisms

open access: yesAdvanced Functional Materials, EarlyView.
A flow‐through electrochemical membrane reactor equipped with a carbon nanotube membrane eliminates the mass transfer limitation, achieving removals >97.5% for steroid hormone (SH) micropollutants through electrochemical adsorption and degradation, over a broad initial concentration varying from 50 to 106 ng L−1.
Siqi Liu   +2 more
wiley   +1 more source

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

open access: yesAdvanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig   +11 more
wiley   +1 more source

A Bespoke Programmable Interpenetrating Elastomer Network Composite Laryngeal Stent for Expedited Paediatric Laryngotracheal Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
A programmable interpenetrating double‐network architecture, created via 3D‐TIPS printing and resin infusion, synergistically combines thermoplastic and thermosetting elastomers to balance structural rigidity and surface softness—crucial for paediatric laryngeal stents.
Elizabeth F. Maughan   +14 more
wiley   +1 more source

EUROPEAN INTEGRATION: TREATMENT OF STONE PROCESSING ENTERPRISES WASTE IN UKRAINE

open access: yesVìsnik Žitomirsʹkogo Deržavnogo Tehnologìčnogo Unìversitetu: Ekonomìčnì Nauki, 2017
Ukraine Stone industry is undergoing dramatic changes. Today is a restructuring of the industry. In a market economy, modernization of existing stone processing enterprises, the use of new technologies in the production of stone products is actually ...
Korobiіchuk V. V.   +4 more
doaj  

Using Activated Carbon Adsorbents Obtained from Plastic Wastes from the Tunisian Beverage Industry

open access: yesProceedings
In this study, we investigated the preparation of char and activated carbon (ACs) materials derived from water bottle waste collected from waste collection point in Tunis.
Asma Nouira   +4 more
doaj   +1 more source

BATAKO DARI LIMBAH BOTOL PLASTIK : TINJAUAN KUAT TEKAN

open access: yesAl-Ulum, 2019
This research was conducted with the aim of plastic bottle waste utilization in the manufacture of plastic bricks and to find out how much the compressive strength of plastic bricks produced.
Lailan Ni'mah   +4 more
doaj   +1 more source

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

open access: yesAdvanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng   +9 more
wiley   +1 more source

An objective assessment of the variability in number of drops per bottle of glaucoma medication

open access: yesBMC Ophthalmology, 2017
Background The purpose of this study is to evaluate the number of eyedrops available per bottle of a variety of commonly prescribed glaucoma medications.
Daniel B. Moore   +2 more
doaj   +1 more source

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