Results 91 to 100 of about 60,988 (314)
Materials Genome Engineering Advances, EarlyView.This study establishes the relationship between loading conditions and loading results in graded density impactor (GDI)‐based controllable stress/strain‐rate loading via deep learning, and ultimately realizing the prediction of loading curves and design of loading conditions.
Yiwei Zhang +7 more
wiley +1 more source
Anomalous Behavior of a Solid Rocket Motor Nozzle Insert During Static Firing Test
Journal of Aerospace Technology and Management, 2016 This paper presents the study and development of a firing test used to evaluate the behavior of a solid rocket motor. The motivation for the development of a subscale solid rocket motor with end burning propellant grain geometry arose from the need to ...
Ronald Izidoro Reis +2 more
doaj
Monte Carlo Uncertainty Quantification Using Quasi-1D SRM Ballistic Model
International Journal of Aerospace Engineering, 2016 Compactness, reliability, readiness, and construction simplicity of solid rocket motors make them very appealing for commercial launcher missions and embarked systems. Solid propulsion grants high thrust-to-weight ratio, high volumetric specific impulse,
Davide Viganò +2 more
doaj +1 more source
Analytical investigation of solid rocket nozzle failure [PDF]
On April 5, 1983, an Inertial Upper Stage (IUS) spacecraft experienced loss of control during the burn of the second of two solid rocket motors. The anomaly investigation showed the cause to be a malfunction of the solid rocket motor. This paper presents
Hester, J., Mccoy, K. E.
core +1 more source
Kinetic Compensation of Barrel Launch Under High‐Speed Solid‐Phase Particulate Impacts
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT An accurate launch‐dynamics computational method is critical for barrel weapon service life assessment and multiphase physics field refinement. Given the lack of studies on the solid‐phase buildup behavior at the projectile base, this paper provides an improved method for calculating the launching dynamics under high pressure and high speed ...
Zhiyi He +3 more
wiley +1 more source
How can children and young people have a voice in urban treescapes?
People and Nature, EarlyView.Abstract Scientific understanding of climate change has, to date, failed to result in sufficient action. This paper proposes that a deficit model of top‐down learning and dissemination in relation to public engagement with science may be part of the problem, particularly when considering the attitudes, values and empowerment of children and young ...
Simon Carr +10 more
wiley +1 more source
Economical technique for fragmentation testing [PDF]
, 1974 Automatic rifle was modified for remote, single-shot use. To simulate statistically--determined fragment size from rocket-motor casing blunt-nosed bullet was made of same alloy.
Smith, T. H., III, Snoke, B. A.
core +1 more source
Progress in Photovoltaics: Research and Applications, EarlyView.This study presents a novel, nondestructive in situ method to quantify water ingress using near‐infrared absorption (NIRA) spectroscopy, calibrated with absolute water content via Karl–Fischer titration (KFT). The presented approach offers a powerful quality assurance and inspection tool for module manufacturers and solar developers, supporting ...
Daniel Schüsler +8 more
wiley +1 more source
Qualification Phase for the Applications Technology Satellite Apogee Rocket Motor Technical Memorandum, Jul. - Aug. 1966 [PDF]
Qualifications tests on applications technology satellite apogee rocket motor ...
Anderson, R. G., Frank, D. R.
core +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Plant biostimulants are substances that are obtained from a variety of sources and are applied in minute quantities to enhance plant growth and vigor. In this review we detail how the use of plant biostimulants may contribute to efforts to achieving a number of the UN Sustainable Development Goals.
Patrick Quille +3 more
wiley +1 more source