Results 181 to 190 of about 85,183 (283)

Streamline and Isotherm Visual Analysis of Darcy–Forchheimer von Karman Spinning Flow of Maxwell Fluid Over a Stretching Disk With Quadratic Temperature‐Dependent Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This research paper provides an extensive study of the effects of Darcy–Forchheimer von‐Karman spinning flow of Maxwell fluid across a stretching disk including the effect of heat generation based on a nonlinear function of temperature. The flow system is influenced by thermal radiations and Arrhenius activation energy.
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

Synthesis of a Novel Amine‐Based Curing Agent for Epoxy Resins Derived From Vanillin

open access: yesJournal of Applied Polymer Science, EarlyView.
The four‐step synthesis of a new bio‐based amine hardener is described starting from vanillin as a bio‐based compound. The hardener ADBA was utilized to cure DGEBA and the resulting Tg,tanδmax was determined via DMA. Compared to other bio‐based curing agents, our curing agent is obtainable in a high yield and leads to a superior Tg of 135°C.
Bastian Hahn   +3 more
wiley   +1 more source

Structure of scientific knowledge flows to intergovernmental organizations. [PDF]

open access: yesProc Natl Acad Sci U S A
Asatani K   +5 more
europepmc   +1 more source

Quantitative and Qualitative Analysis of Highly Cited Papers from India on Academic Libraries Research during 2001-2024

open access: hybrid
Brij Mohan Gupta   +4 more
openalex   +2 more sources

Phosphorylation of Milkweed Fibers With a Phosphate Ester: Effect on Fiber Properties and Optimization of Reaction Conditions

open access: yesJournal of Applied Polymer Science, EarlyView.
The phosphorylation of milkweed fibers using the phosphate ester/urea system was optimized. The impact of reaction temperature, duration, and phosphate ester ratio on the efficiency of phosphorylation was investigated using the design of experiments approach.
Ahmed Azrrar   +4 more
wiley   +1 more source

Wood Sawdust as a Low‐Cost Filler in Whole‐Tire Reclaimed Rubber: Mechanical Characterization and Factory‐Scale Cost Analysis

open access: yesJournal of Applied Polymer Science, EarlyView.
Whole‐tire reclaimed rubber is upgraded with wood sawdust, a carpentry by‐product available at no cost, across loadings from 0 to 20 wt%. At 5 wt%, tensile strength, elongation, hardness, viscosity, and water absorption all stay within commercial specification, and real factory data show an annual production saving near $62,000 with no capital ...
Mohammed S. Matar   +3 more
wiley   +1 more source

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