Results 91 to 100 of about 61,329 (314)

Solid propellant rocket motor and method of making same [PDF]

open access: yes, 1977
A method is described for making a solid propellant rocket motor having a specific concavity formed within the fuel charge. A mandrel with an aperature wider than that of the casing is inserted within the motor casing and a solidifiable propellant cast ...
Lewis, D. J., Thibodaux, J. G., Jr.
core   +1 more source

A method for comparing the performance of power plants for vertical flight [PDF]

open access: yes, 1952
A new method of power plant selection for vertical flight is proposed. It can be used to determine whether the performance of a rocket design can be improved by substituting for the rocket motor a different power plant such as a ramjet.
Tsien, H. S.
core   +1 more source

Kinetic Compensation of Barrel Launch Under High‐Speed Solid‐Phase Particulate Impacts

open access: yesInternational 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

Monte Carlo Uncertainty Quantification Using Quasi-1D SRM Ballistic Model

open access: yesInternational 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

A survey of structural dynamics of solid propellant rocket motors [PDF]

open access: yes
Structural dynamics survey for solid propellant rocket ...
Baltrukonis, J. H.
core   +1 more source

Research status and trends of Piezo1 and brain: A bibliometric analysis

open access: yesNeuroprotection, EarlyView.
This graphical abstract illustrates the workflow and key findings of the bibliometric analysis of Piezo1 in brain research. The primary results were visually centered on a brain graphic highlighting the Piezo1 channel, and three converging research hotspots were identified: neurovascular regulation, calcium signaling, and neuroinflammation.
Yu Liu   +8 more
wiley   +1 more source

Anomalous Behavior of a Solid Rocket Motor Nozzle Insert During Static Firing Test

open access: yesJournal 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  

On the nature of the fragment environment created by the range destruction or random failure of solid rocket motor casings [PDF]

open access: yes
Given here are predictions of fragment velocities and azimuths resulting from the Space Transportation System Solid Rocket Motor range destruct, or random failure occurring at any time during the 120 seconds of Solid Rocket Motor burn.
Eck, M., Mukunda, M.
core   +1 more source

Desain dan Pengembangan Sistem Kecerdasan Robotika Muatan Roket dengan 5 Derajat Kebebasan dengan Kontrol Sistem Pendaratan Navigasi X-Y Kartesian [PDF]

open access: yes, 2010
In this study a design and manufacture a rocket payload system that has the ability to fly autonomously intelligently is discussed. The rocket payload system was designed to be able to return to the landing position.
Arhta, Zulfikar   +2 more
core  

From Data to Decisions: How Machine Learning and Generative Artificial Intelligence Are Redefining Precision Medicine in Kidney Transplantation

open access: yesOrgan Medicine, EarlyView.
This review evaluates how machine learning, multimodal integration, and generative AI optimize kidney transplant outcomes. These tools enable superior prediction and personalized therapy but face hurdles in data volume, generalizability, and ethics. Future clinical adoption depends on continued innovation and multidisciplinary collaboration to overcome
Maoxin Liao, Cheng Yang
wiley   +1 more source

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