Results 111 to 120 of about 38,278 (273)
Noisy Politics, Quiet Technocrats: Strategic Silence by Central Banks
ABSTRACT In contrast to the “quiet” politics of the pre‐2008 period, macroeconomic policy has become “noisy”. This break raises a question: How do independent agencies designed for quiet politics react when a contentious public turns the volume up on them?
Benjamin Braun, Maximilian Düsterhöft
wiley +1 more source
Kick Solid Rocket Motor Multidisciplinary Design Optimization Using Genetic Algorithm
http://dx.doi.org/10.5028/jatm.v5i3.225 In this paper, a multidisciplinary design optimization (MDO) approach of a solid propellant kick rocket motor is considered. A genetic algorithm optimization method has been used.
Fredy Marcell Villanueva +2 more
doaj
Technologies and New Methods for Determining the Burning Rate of Solid Propellants [PDF]
The burning rate plays animportant role in determining the performanceandballistic behavior of solid rocket propellant. In this paper, the effect of various factorson burning rate, such as combustion chamber pressure, poropellant grain initial ...
Mohammad Ali Dehnavi, Reza Emami
doaj
Complex Burn Region Module (CBRM) update [PDF]
Presented here is a Complex Burn Region Module (CBRM) update for the Solid Rocket Internal Ballistics Module (SRIBM) Program for the Advanced Solid Rocket Motor (ASRM) design/performance assessments.
Adams, Carl L., Jenkins, Billy
core +1 more source
ABSTRACT The Girls Excelling in Math and Science (GEMS) club is a long‐standing afterschool STEM program (1994–present). The study investigates the features of GEMS by exploring retrospective experiences of a group of original GEMS girls (OGGs) who attended GEMS in 1994–1995. Survey data were collected from 14 OGGs and in‐depth interview data from nine
Lili Zhou
wiley +1 more source
Optical Measurements on Solid Specimens of Solid Rocket Motor Exhaust and Solid Rocket Motor Slag [PDF]
Samples of aluminum slag were investigated to aid the Earth Science and Applications Division at the Marshall Space Flight Center (MSFC). Alumina from space motor propellant exhaust and space motor propellant slag was examined as a component of space ...
Roberts, F. E., III
core +1 more source
Space Shuttle Propulsion System Reliability [PDF]
This session includes the following sessions: (1) External Tank (ET) System Reliability and Lessons, (2) Space Shuttle Main Engine (SSME), Reliability Validated by a Million Seconds of Testing, (3) Reusable Solid Rocket Motor (RSRM) Reliability via ...
Moore, Dennis +3 more
core +1 more source
Erosion of granular sediments by submerged impinging jets: Particle size effects and cohesion onset
Abstract This study investigates the erosion behavior and modeling of glass particle beds under impinging jet conditions, with a focus on particle size effects and the onset of cohesion. Ultrasonic profiling is implemented to scan and measure static crater profiles.
Ahmad Mohamadiyeh +4 more
wiley +1 more source
A computer simulation of the afterburning processes occurring within solid rocket motor plumes in the troposphere [PDF]
As part of a continuing study of the environmental effects of solid rocket motor (SRM) operations in the troposphere, a numerical model was used to simulate the afterburning processes occurring in solid rocket motor plumes and to predict the quantities ...
Gomberg, R. I., Stewart, R. B.
core +1 more source
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

