Results 21 to 30 of about 516,930 (293)
Context Specificity in Stability of Hyperactivity–Impulsivity [PDF]
European Journal of Personality, 2010 This paper exemplifies a secondary data analysis of context–specific differences in children's hyperactivity–impulsivity while controlling for informant–specific effects. Participants were boys and girls from the NICHD Study of Early Child Care and Youth Development whose behaviours were measured in 1st, 3rd and 5th grades.
J, Kim +3 more
openaire +2 more sources
Modelling Rocket System Performance Parameters
Academy Journal of Science and Engineering, 2022 What distinguishes the rocket system from airbreathing engines is that the rocket carries its own propellants, fuel and oxidants. The modern rocket was originally developed for ballistic missiles.
Nnorom Achara
doaj
Metals, 2022 The current transmission and reflection laser ablation micropropulsion modes have the problem of a complex working medium supply system in engineering. Therefore, we propose large-spot laser ablation with a one-dimensional supply mode. In order to verify
Mingyu Li +6 more
doaj +1 more source
The energy potential of some hypothetical nitrosubstituted tetrazoles derivatives [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2018 The energy abilities of solid composite propellants based on some nitrosubstituted tetrazole derivatives, which are still hypothetical but they are promising for create on their basis rather powerful propellants, have been considered.
I. Yu. Gudkova, D. B. Lempert
doaj +1 more source
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2022 A numerical method for thermogasdynamic calculation of low-thrust liquid rocket engines is presented. These engines are used as end organs of the system of space attitude control for nanosatellites and small spacecraft.
A. D. Maksimov, S. A. Shustov
doaj +1 more source
Arcjet plasma temperature estimation in thruster device [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2018 The kinetic theory of gases methods has been used to evaluate plasma arc parameters in the arcjet thruster device. It greatly means the compression process in adiabatic character and gas temperature increasing for excited atoms Boltzmann distribution ...
V. I. Gorbunkov +3 more
doaj +1 more source
Reaktor, 2022 Rocket Propulsion Analysis (RPA) is software for predicting the performance of a rocket engine. It is usually used in conceptual and preliminary design.
Anita Pinalia +4 more
doaj +1 more source
Some nitrogen-rich heterocycles derivatives as potential explosives and propellants: A theoretical study [PDF]
Journal of the Serbian Chemical Society, 2016 Four types of nitrogen-rich heterocycles substituted with -NO2, -NHNO2 and -C(NO2)3 explosophoric groups were explored as potential explosives and propellants materials.
Frem Dany
doaj +1 more source
Impulse-response functions of several detectors used in flow-injection analysis [PDF]
, 1990 A procedure for the determination of the impulse-response function of a detector is given. Its application to photometers, ion-sensitive field effect transistors, a potentiometric detector at constant current and a voltammetric detector shows that the ...
Bos, M. +3 more
core +3 more sources
Characterizing motor impulsivity of individuals classified as overweight to obese
Sports Medicine and Health Science, 2023 Deficits in the impulse control system are an important predictor of energy intake and body weight. Adults classified as overweight to obese may possess these deficits as a general behavioral trait or they may be food-specific. The present study assessed
Kyle D. Flack +3 more
doaj +1 more source