Results 121 to 130 of about 403,665 (299)

Alkaline electrochemical cells and method of making [PDF]

open access: yes, 1970
Equilibrated cellulose ether membranes of increased electrolytic conductivity for use as separators in concentrated alkaline electrochemical cells are investigated.
Hoyt, H. E., Pfluger, H. L.
core   +1 more source

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

open access: yesAdvanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song   +14 more
wiley   +1 more source

KARAKTERISASI EDIBLE FILM BERBAHAN DASAR EKSTRAK KARAGENAN DARI RUMPUT LAUT (Eucheuma cottonii)

open access: yesJurnal Bahan Alam Terbarukan, 2015
Extraction process of carrageenan doing at 2 hours with temperature 80-90°C using sodium hidroxide with variant consentration of sodium hydroxide is 0,55N; 0,75N; 0,95N; 1,2N; 1,4N.
Dewi Selvia Fardhyanti   +1 more
doaj  

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

open access: yesAdvanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang   +6 more
wiley   +1 more source

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

open access: yesAdvanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar   +15 more
wiley   +1 more source

Conditions optimization for obtaining biodiesel from soybean oil using the mixture experimental design

open access: yesSemina: Ciências Exatas e Tecnológicas, 2010
The optimization of the yield of transesterification reaction to obtain the B100 biodiesel has been studied using sodium hydroxide, potassium hydroxide, methoxide and sodium ethoxide as catalysts.
Kelly Roberta Spacino   +5 more
doaj  

The Retention of Wet Strength Resins as Determined by the Kjeldahl Method [PDF]

open access: yes, 1952
True wet strength is not a gauge of water proofness of paper, but is a measure of the residual strength of the paper gauged by the mullen, tear, burst, and fold, after the paper has been completely soaked in water and the resistance to water penetration ...
Redmond, Walter J.
core   +1 more source

Advanced Separators for Liquid and Quasi‐Solid Lithium Rechargeable Batteries: Design and Development

open access: yesAdvanced Materials, EarlyView.
This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah   +5 more
wiley   +1 more source

Investigation of the effects of NaOH dopant level on the physical and mechanical properties of carbon/phenolic composite material [PDF]

open access: yes, 1985
The near-catastrophic erosion of the STS-8A solid rocket booster nozzle was the instigating factor in the recent, and on-going, intensive investigation of carbon/phenolic composite materials.
Clinton, R. G., Jr.
core   +1 more source

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