Results 31 to 40 of about 516,930 (293)
Specific Impulse and Absolute Chemical Hardness [PDF]
, 2020 The present work is dedicated to show that there are relationships between the absolute chemical hardness (η) of monopropellants and their specific impulse (Is). A total of sixteen monopropellants have been modelled and the absolute hardness obtained by quantum chemical calculations.
George Santos Marinho, Robson de Farias
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Zhongguo Jianchuan Yanjiu, 2019 [Objectives]The influence of the explosion venting plate thickness on the effect of the venting in the new type broadside structure adopted by the DDG 1000 destroyer is studied in this paper.[Methods] First,the reliability of the simulation method was ...
Zhao Pengduo +5 more
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Rapid Estimation of Specific Impulse
Defence Science Journal, 1988 Specific impulse (Isp) is one of the important criteria for propellant characterisation. In the present paper a semiempirical approach has been suggested to calculate Isp of composite modified doublebase(CMDB) propellant formulations by utilizing calorimetric value(Cal-Val) of the propellant composition.
V. K. Bhat +2 more
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AerospaceHybrid rocket motors have great development potential due to their outstanding thrust adjustment flexibility and long-term operation ability. However, nozzle erosion during the motor operation can cause an increase in the throat area of the nozzle, which
Xiangyu Meng +5 more
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Performance of laser ablation propulsion with a high-repetition rate and high-power laser
AIP Advances, 2022 We investigated the propulsive performance of laser ablation propulsion using a high-power and highly repetitive pulsed laser. We demonstrated 100 shots of burst laser irradiation with an aluminum target using repetition frequencies of 0.017 Hz and 1 kHz.
Kazuki Igarashi +4 more
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Ultrahigh Specific Impulse Nuclear Thermal Propulsion [PDF]
, 2009 Research on nuclear thermal propulsion systems (NTP) have been in forefront of the space nuclear power and propulsion due to their design simplicity and their promise for providing very high thrust at reasonably high specific impulse. During NERVA-ROVER program in late 1950's till early 1970's, the United States developed and ground tested about 18 NTP
Charmeau, Anne +2 more
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Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus +6 more
wiley +1 more source
Stacked-cup multiwall carbon nanotubes as components of energy-intensive suspension jet fuels
Тонкие химические технологии, 2020 Objectives. The addition of high-density carbon materials to jet fuels can lead to a significant increase in the volumetric energy of the fuel combustion.
L. S. Karpushenkava +2 more
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Muscle-Specific Effective Mechanical Advantage and Joint Impulse in Weightlifting [PDF]
, 2016 Lifting greater loads during weightlifting exercises may theoretically be achieved through increasing the magnitudes of net joint impulses or manipulating the joints’ effective mechanical advantage (EMA).
Harris, Chad, Kipp, Kristof
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Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source