Results 181 to 190 of about 267,963 (391)

Design of a Sustainable Polysaccharide‐Lignocellulosic‐Mineral Granular Biocomposite Sorbent for Methylene Blue Removal

open access: yesJournal of Applied Polymer Science, EarlyView.
This manuscript describes the preparation of four types of spent coffee ground‐based adsorbents. Herein, the influence of the alkali pre‐treatment step (different NaOH concentrations) as well as the effect of crosslinking with epichlorohydrin is described.
Bernd Steiger, Lee Wilson
wiley   +1 more source

Surface temperature variability in a tropical Andean summit: influence of ENSO, elevation, and slope direction

open access: yesEnvironmental Research Communications
Tropical Andean ecosystems are critical for biodiversity conservation and water regulation. Climate change is affecting these ecosystems, but research at high altitudes is still scarce.
Maria Paula Rivera Reyes   +4 more
doaj   +1 more source

Changes of glacier area in the Austrian alps between 1973 and 1992 derived from Landsat data

open access: yes, 1997
Data from Landsat satellite sensors are used to obtain an inventory of 165 Austrian glaciers and their temporal change. Applications and modifications of existing remote sensing algorithms for glacier clas- sification are discussed.
Paul, F.
core  

Polysaccharide‐Coated ETCA Nanoparticles Containing the Methoxyl Substituted Indole‐Thiazole Derivative and Their Antiproliferative Activity in Breast Cancer Cells

open access: yesJournal of Applied Polymer Science, EarlyView.
ABSTRACT Indole and thiazole derivatives have garnered significant attention due to their potent antitumor activities. Encapsulation of such derivatives into polymeric nanoparticles offers several advantages, including improved molecular stability and targeted delivery to tumor sites, thereby enhancing their antineoplastic potential.
José Cleberson Santos Soares   +4 more
wiley   +1 more source

Sustainable Bioplastics From Land and Sea Waste: Structure, Thermal Stability, and Mechanical Behavior Under Accelerated Weathering

open access: yesJournal of Applied Polymer Science, EarlyView.
Schematic representation of the fabrication of sustainable bioplastics derived from fish scales (FS) and orange peels (OP), modified with EDC/NHS and PCL. The films were subjected to accelerated weathering to evaluate changes in structural integrity, thermal stability, and mechanical behavior.
Israel Núñez‐Tapia   +2 more
wiley   +1 more source

Mechanical, Thermal, and Morphological Properties of PA/NBR TPVs: Influence of Processing Conditions and Recyclability

open access: yesJournal of Applied Polymer Science, EarlyView.
Dynamic vulcanization at higher shear rates refines PA/NBR morphology, reduces domain size, and maintains mechanical performance after reprocessing. ABSTRACT Thermoplastic vulcanizates (TPVs) of polyamide 6 and nitrile butadiene rubber (PA/NBR) present excellent mechanical properties but traditionally suffer from performance loss during re‐melt ...
André Luís dos Santos da Silva   +4 more
wiley   +1 more source

Finite element analysis of feeding in red and gray squirrels (Sciurus vulgaris and Sciurus carolinensis)

open access: yesThe Anatomical Record, EarlyView.
Abstract Invasive gray squirrels (Sciurus carolinensis) have replaced the native red squirrel (Sciurus vulgaris) across much of Great Britain over the last century. Several factors have been proposed to underlie this replacement, but here we investigated the potential for dietary competition in which gray squirrels have better feeding performance than ...
Philip G. Cox, Peter J. Watson
wiley   +1 more source

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