Results 31 to 40 of about 520,173 (313)

Specific Impulse and Absolute Chemical Hardness [PDF]

open access: yes, 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
openaire   +1 more source

Numerical simulation of the influence of thickness of explosion venting plate on the damage and internal load of the cabin

open access: yesZhongguo 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
doaj   +1 more source

Characterizing motor impulsivity of individuals classified as overweight to obese

open access: yesSports 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

Rapid Estimation of Specific Impulse

open access: yesDefence 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
openaire   +1 more source

Long-Duration Dynamic Numerical Simulation of Combustion and Flow in Hybrid Rocket Motors Considering Nozzle Erosion

open access: yesAerospace
Hybrid 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
doaj   +1 more source

Ultrahigh Specific Impulse Nuclear Thermal Propulsion [PDF]

open access: yes, 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
openaire   +2 more sources

Performance of laser ablation propulsion with a high-repetition rate and high-power laser

open access: yesAIP 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
doaj   +1 more source

Blinatumomab Utilization in Pediatric B‐Cell Acute Lymphoblastic Leukemia: Experience From the Mountain West

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Blinatumomab is a bispecific T‐cell engager approved for the treatment of pediatric B‐cell acute lymphoblastic leukemia (B‐ALL). Outpatient home infusion reduces hospitalization burden and optimizes resource utilization, but is logistically challenging.
Angela Parra del Riego   +10 more
wiley   +1 more source

Stacked-cup multiwall carbon nanotubes as components of energy-intensive suspension jet fuels

open access: yesТонкие 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
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS 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

Home - About - Disclaimer - Privacy