Results 31 to 40 of about 5,396,974 (280)

Investigation of the rocket motor dimensionless geometric parameters influence on the burning rate of double base propellant

open access: yesVojnotehnički Glasnik, 2001
The investigation included experimental and theoretical studies of internal ballistic characteristics with a particular attention to erosive rate burning in function of propellant-motor system geometric parameters.
Lajoš Tot , Panto Maslak
doaj   +1 more source

Study on the Combustion Characteristics of Ethanol Nanofuel

open access: yesAerospace, 2023
This study investigates the thermophysical and combustion characteristics of ethanol-based nanofuels incorporating aluminum (Al) and nickel-coated aluminum (Ni-Al). The nanofuels are prepared with varying concentrations of Al and Ni-Al nanoparticles. The
Kwanyoung Noh   +3 more
doaj   +1 more source

Effect of Semi-Transverse Ventilation Velocity on Combustion Characteristics of Pool Fire Sources in a Scaled Tunnel

open access: yesFire
Compared to longitudinal ventilation, there are few studies on fire source development under semi-transverse ventilation. This work studied the influence of semi-transverse ventilation on the combustion characteristics of fire sources in a scaled tunnel.
Liyue Gong   +6 more
doaj   +1 more source

Cast composite solid propellants with different combustion stabilizers [PDF]

open access: yesScientific Technical Review, 2015
The effect of four different compounds as the combustion stabilizers of composite solid propellants based on the AP/HTPB/IPDI has been presented in this paper.
Rodić Vesna   +3 more
doaj  

Numerical Investigation on the Effect of Ammonium Perchlorate Content and Position on the Combustion Characteristics of an Ammonium Perchlorate/Hydroxyl-Terminated Polybutadiene Propellant

open access: yesAerospace, 2023
A gas–solid-coupled sandwich combustion model was established for ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB) composite propellant.
Di Sun   +4 more
doaj   +1 more source

Temporal Interference Stimulation of Centromedian‐Parafascicular Complex in Disorders of Consciousness: A Pilot Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Treatment of disorders of consciousness (DoC) remains a major clinical challenge, and noninvasive, targeted modulation of deep brain structures has emerged as a promising therapeutic strategy. We aimed to evaluate the feasibility/safety and preliminary effects of thalamic temporal interference stimulation (TIS) targeting centromedian‐
Gengyao Hu   +7 more
wiley   +1 more source

Experimental Study on Mixed Combustion Characteristics of Methanol/Diesel Pool Fires in Engine Rooms of Hybrid Ships

open access: yesEnergies
Methanol/diesel hybrid−powered vessels represent a significant advancement in green and low−carbon innovation in the maritime transportation sector and have been widely adopted across various shipping markets. However, the dual−fuel power system modifies
Jiaqi Dong   +6 more
doaj   +1 more source

Numerical Simulation of Unsteady Flow and Calculation of Heat Transfer Coefficient inside the Solid Propellant Engine Shell [PDF]

open access: yesفناوری در مهندسی هوافضا
In this study, the simulation of internal ballistics and the exhaust flow of a solid propellant engine have been investigated. The flow field considered in this problem including the cylindrical grain and the solid wall of the engine and the flow at the ...
Mohsen Esfandi, Mohammad Kazem Moayyedi
doaj   +1 more source

The rate of burning of colloidal propellants [PDF]

open access: yesProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1932
Abstract Two papers have recently appeared in which a theoretical law is derived for the burning of colloidal propellants, and in each case the theory is supported by experimental results. Yamaga proves that the rate of burning along the normal is proportional to the pressure of the surrounding gases, ’whereas Crow and Grimshaw prove ...
F. R. W. Hunt, G. H. Hinds
openaire   +1 more source

Cracking the Code: Which Ocular Symptoms Predict Dry Eye Signs? Insights From a Large International Sicca Registry

open access: yesArthritis Care &Research, EarlyView.
Objective The study aimed to identify symptom‐based predictors of dry eye disease (DED) signs in the Sjögren's International Collaborative Clinical Alliance (SICCA) cohort. Methods We performed a retrospective analysis examining 16 ocular symptoms (most graded 0–4) and artificial tear (AT) use (graded 0–3) as predictors of DED signs (abnormal ocular ...
Pragnya R. Donthineni   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy