Results 121 to 130 of about 9,609 (252)

Influence of Hornification Treatment and Fiber Length on the Performance of Recycled Polypropylene Composites

open access: yesPolymer Composites, Volume 47, Issue 5, Page 4793-4803, 10 March 2026.
Study of the influence of hornification treatment and jute and mallow fiber length on the physical, thermal, and mechanical properties of recycled polypropylene (PP) composites. ABSTRACT The growing accumulation of plastic waste has driven its reuse in the development of new composites, with natural fibers emerging as promising reinforcements. However,
Raquel de Sousa Freire   +4 more
wiley   +1 more source

Theoretical study of the ballistics and heat transfer in spinning solid propellant rocket motors [PDF]

open access: yes
Computerized prediction analyses of radial spin acceleration effects on solid propellant rocket motor ballistics and heat ...
Hodge, B. K., Whitesides, R. H., Jr.
core   +1 more source

Phase Separation of Nucleic Acids: Mechanisms, Properties, and Applications

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 11, 9 March 2026.
Recent discoveries have shown that single‐stranded long‐chain nucleic acids can undergo temperature‐induced phase separation, enabling formation of micrometer‐sized condensates. This Minireview discusses the current mechanistic understanding of this phenomenon, highlights strategies for controlling the physical and chemical properties of these ...
Weixiang Chen   +2 more
wiley   +1 more source

Evaluation of candidate working fluid formulations for the electrothermal - chemical wind tunnel [PDF]

open access: yes
Various candidate chemical formulations are evaluated as a precursor for the working fluid to be used in the electrothermal hypersonic test facility which was under study at the NASA LaRC Hypersonic Propulsion Branch, and the formulations which would ...
Akyurtlu, Ates, Akyurtlu, Jale F.
core   +1 more source

A Thoracic Mechanism of Mild Traumatic Brain Injury Due to Blast Pressure Waves [PDF]

open access: yes, 2008
The mechanisms by which blast pressure waves cause mild to moderate traumatic brain injury (mTBI) are an open question. Possibilities include acceleration of the head, direct passage of the blast wave via the cranium, and propagation of the blast wave to
Amy Courtney, Michael Courtney
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

open access: yesAdvanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar   +8 more
wiley   +1 more source

Investigation into the impact of integral suppressor configurations on the pressure levels within the suppressor [PDF]

open access: yes, 2016
This paper reports on an experimental investigation supported by basic modeling in to the performance of an integral suppressor on a low power firearm. A model was developed to determine the pressure within a suppressor chamber using iterative empirical ...
Champion, Stephen M.   +2 more
core  

Effect of Varying Design Options on the Transient Behavior of a Hybrid Rocket Motor

open access: yesJournal of Aerospace Technology and Management, 2014
Hybrid rockets provide compelling features for use in atmospheric and space rocket propulsion. One of the prominent applications of hybrid rockets which foster on its characteristics is the propulsion of micro air launch vehicles. In this paper, a set of
Raed Kafafy   +2 more
doaj  

Multi-Objective Design Optimization of Solid Rocket Motors via Surrogate Modeling

open access: yesAerospace
To reduce the high computational cost and lengthy design cycles of traditional solid rocket motor (SRM) development, this paper proposes an efficient surrogate-assisted multi-objective optimization approach.
Xinping Fan   +7 more
doaj   +1 more source

Internal ballistics of solid rocket motor

open access: yes, 2021
The ability to accurately model the operation of a solid rocket motor before undergoing multiple firing tests is essential. The analysis of the internal ballistics of a solid rocket motor results in a depiction of the flow properties inside the chamber, and thus, the overall motor performance.
openaire   +1 more source

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