Results 71 to 80 of about 4,047 (185)

Moisture Absorption in Highly Porous Closed‐Cell Polymeric Foams

Polymer Engineering &Science, EarlyView.
The conventional one‐dimensional hindered diffusion model has been extended into a new Void Filling Hindered Diffusion Model. By quantifying the moisture stored within closed‐cell pores, this model successfully captures the distinct absorption behaviors observed across varying foam thicknesses.
G. E. Guloglu, M. C. Altan
wiley   +1 more source

Isotermas de dessorção das sementes de nabo forrageiro obtidas pelos métodos dinâmico e estático Desorption isotherms of seeds of forage radish obtained by dynamic and static methods

Revista Brasileira de Engenharia Agrícola e Ambiental, 2013
Propôs-se, com este trabalho, determinar as isotermas de dessorção das sementes de nabo forrageiro e ajustar modelos matemáticos aos dados experimentais obtidos pelos métodos estático e dinâmico e verificar a possibilidade de utilização de um único ...
Kelly A. de Sousa, Osvaldo Resende, Lílian M. Costa   +2 more
doaj  

Purification and Properties of Polyvinyl Nitrate and Its Compatibility With Solid Oxidizers

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Polyvinyl nitrate (PVN) is a nitrate‐ester energetic binder that can be produced directly from polyvinyl alcohol—a cheap commodity feedstock—thereby offering potential cost and supply‐chain advantages over binders based on nitrocellulose and other specialty polymers.
Stephen Spice, Monica C. Chandwani, Carole A. Morrison, Colin R. Pulham   +3 more
wiley   +1 more source

The Moisturizing Properties and Water Distribution Characteristics of the Carboxymethyl Pine Needle Polysaccharide-Potassium Lactate Mixture

Liang you shipin ke-ji
To develop a humectant with excellent moisturizing properties, this study used Korean pine needles as raw materials to prepare pine needle polysaccharides, which were then carboxymethylated. The structural characteristics and moisturizing behavior of the
LÜ Xiang, ZHU Song, LI Yue
doaj   +1 more source

Advance in One‐Pot Synthesis of Polymer‐Coated Nanogold: Au(III)–Monomer Redox Reaction Initiates Radical Polymerization and Produces a Potential Nanotag Platform

Small, EarlyView.
Gold nanoparticles are prepared simultaneously with the formation of a polymer, whose growth is initiated by direct interaction of Au(III) with a vinyl‐type monomer. Nanoparticles produce stable, bioorthogonal SERS signal originating from an isonitrile/carbene‐type functionality covalently anchored to the gold surface.
Hana Charvátová, Ivana Šeděnková, Jiřina Hromádková, Ognen Pop‐Georgievski, Michal Babič   +4 more
wiley   +1 more source

Emerging Aluminum‐Ion Capacitors and Lessons from Battery Chemistry

Small, EarlyView.
Al‐ion energy storage is gaining momentum as demand grows for safer, lower‐cost, and more sustainable alternatives to Li‐based technologies. Aluminum's abundance, recyclability, and trivalent charge offer high charge capacity and scalable device potential.
Smita Talande, Ievgen Obraztsov, Vishal Shrivastav, Mahima Khandelwal, Mansi, Michal Otyepka, Radek Zbořil, Aristides Bakandritsos   +7 more
wiley   +1 more source

Dynamic Vapor Sorption (DVS) Analysis of the Thermo-Hygroscopic Behavior of Arthrospira platensis Under Varying Environmental Conditions

Thermo
This paper presents a new study and analysis of the thermo-hygroscopic behavior of Arthrospira platensis using dynamic vapor sorption (DVS) system. Thermo-hygroscopic characterization is essential for optimizing the drying process and enhancing storage ...
Thouraya Ghnimi, Lamine Hassini, Mohamed Bagane   +2 more
doaj   +1 more source

A Retinomorphic Graphene Transistor Implementing Direction‐ and Velocity‐Selective Computation for In‐Sensor Image Stabilization

Small, EarlyView.
A multi‐gated ion‐gel graphene transistor architecture emulates spatiotemporal dendritic filtering inspired by biological direction‐selective retinal circuits. Leveraging distributed resistance‐capacitive ionic relaxation delays under combined excitation‐inhibition pulse routines, the solid‐state device exhibits programmable direction‐selective index ...
Jun Ha Park, HoYeon Kim, Jinkyung Kim, Hyun Jae Jang, Jae Wook Kim, Jongkil Park, Seongsik Park, Inho Kim, Suyoun Lee, Gyu Weon Hwang, Byeong‐Kwon Ju, Kyeong‐Seok Lee   +11 more
wiley   +1 more source

Changes in Hygroscopic Properties of Poplar and Black Pine Induced by Thermal Treatment [PDF]

Pro Ligno, 2018
The aim of the present research is to comprehend the response of poplar (Populus sp.) and pine (Pinus nigra L.) wood to thermal modification at the temperature of 180°C and 200°C, for 3 different treatment durations of 3, 5 and 7 hours, in the presence
Vasiliki KAMPERIDOU, Ioannis BARBOUTIS
doaj  

Influence of Viscous Dissipation on Wear Behavior and Hardness Evolution of Tool Steels in Glass‐Fiber‐Reinforced Polymer Processing

steel research international, EarlyView.
Tool steels tested under injection molding conditions with glass‐fiber‐reinforced polymers, revealing how viscous dissipation drives hardness loss, even in PM grades. A sharp rise in wear with increasing injection volume rate and thermomechanical load uncovers striking material differences.
David Zidar, Roman Staudigl, Walter Friesenbichler, Clemens Holzer   +3 more
wiley   +1 more source