Results 21 to 30 of about 1,923 (153)

Review of High‐Speed Digital Image Correlation: Advancements and Good Practices

open access: yesStrain, Volume 61, Issue 6, December 2025.
This review synthesizes advances in high‐speed (HS) and ultra‐high‐speed (UHS) digital image correlation (DIC) across more than 150 studies. Key developments include camera innovations, refined image processing, and experimental strategies that enable unprecedented temporal and spatial resolution of dynamic events.
A. Arrington   +4 more
wiley   +1 more source

Light‐driven micro/nanobots

open access: yesNanophotonics, Volume 14, Issue 27, Page 4821-4874, December 2025.
Abstract Modern technological evolution witnesses a fast‐paced progress in the design, science, and technology of light‐driven micro/nanomachines in the recent past. These micromachines have found enormous applications as micro/nanoscale manipulators, micromachined space exploration components, nano‐sized cell positioning and control, and micro ...
Rigvendra Kumar Vardhan   +2 more
wiley   +1 more source

Analytical Models for the Thrust of a Rotating Detonation Engine [PDF]

open access: yes, 2017
Two models are proposed for rotating detonation engine performance. The first model is motivated by models of pulse detonation engine performance which are based on the pressure-time history within the detonation tube.
Kasahara, J., Shepherd, J.E.
core  

The Value Chain of Sustainable Dual Carbon Sodium Ion Capacitors

open access: yesBatteries &Supercaps, Volume 8, Issue 8, August 2025.
Sodium‐ion capacitors (SICs) bridge the energy‐power gap between batteries and supercapacitors, offering sustainable and scalable energy storage solutions. This review provides a 360‐degree perspective on SIC technology, covering material choices, presodiation strategies, manufacturing challenges, applications and life cycle assessment to ensure ...
Roman Mysyk   +23 more
wiley   +1 more source

A Critical Review of Limitations and Challenges in Advancement of HNF as a Green Oxidizer for Composite Solid Propellant Formulations

open access: yesPropellants, Explosives, Pyrotechnics, Volume 50, Issue 7, Page 11-30, July 2025.
ABSTRACT Hydrazinium nitroformate (HNF) is a chlorine‐free, high‐energy oxidizer with promising applications in green propulsion systems. This review examines the thermal decomposition, combustion kinetics, flame structure, and behavior of HNF, while critically evaluating the current body of literature.
Lakshay Bansal   +2 more
wiley   +1 more source

Ground zero soil sampling: Trinity, 1945

open access: yesGeology Today, Volume 41, Issue 4, Page 137-146, July/August 2025.
At Trinity—the world's first nuclear weapons testing site—large quantities of soil were drawn into the fireball to redeposit either downwind as radioactive fallout or in the near‐field as a unique, anthropogenic silicate glass trinitite. Manhattan Project physicists and chemists came to see soils at the Trinity site as a useful medium to assess the ...
Edward R. Landa
wiley   +1 more source

Effectiveness of an Expendable Unmanned Ground Vehicle Stalling a Mechanized Infantry Company's Primary Combat Units—A Virtual Simulation Experiment

open access: yesJournal of Field Robotics, Volume 42, Issue 4, Page 1125-1142, June 2025.
ABSTRACT Technological advancements have spurred the development of unmanned ground vehicles (UGVs) and their innovative military applications and strategies. Such applications include expendable UGVs. However, public research concerning expendable military UGVs remains sparse.
Christian A. Andersson   +4 more
wiley   +1 more source

Multiphysics Simulation Methods in Computer Graphics

open access: yesComputer Graphics Forum, Volume 44, Issue 2, May 2025.
Abstract Physics simulation is a cornerstone of many computer graphics applications, ranging from video games and virtual reality to visual effects and computational design. The number of techniques for physically‐based modeling and animation has thus skyrocketed over the past few decades, facilitating the simulation of a wide variety of materials and ...
Daniel Holz   +5 more
wiley   +1 more source

Index to NASA Tech Briefs, 1975 [PDF]

open access: yes, 1976
This index contains abstracts and four indexes--subject, personal author, originating Center, and Tech Brief number--for 1975 Tech ...

core   +1 more source

Review on the Rotating Detonation Engine and It’s Typical Problems [PDF]

open access: yes, 2020
Detonation is a promising combustion mode to improve engine performance, increase combustion efficiency, reduce emissions, and enhance thermal cycle efficiency.
Ji, Zifei   +5 more
core   +1 more source

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