Results 191 to 200 of about 6,233 (257)
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, 2021
A novel methodology for the calculation of the surface temperature of liquefying fuels typically burned in hybrid rockets is proposed. This procedure stems from the formulation of a fuel in-depth pyrolysis model coupled with the resolution of the thermo ...
C. Carmicino, G. Gallo, R. Savino
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A novel methodology for the calculation of the surface temperature of liquefying fuels typically burned in hybrid rockets is proposed. This procedure stems from the formulation of a fuel in-depth pyrolysis model coupled with the resolution of the thermo ...
C. Carmicino, G. Gallo, R. Savino
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Internal Ballistics of a Boron-Containing Solid Fuel Ramjet
Combustion Science and Technology, 2020The solid fuel ramjet is one of the simplest air-breathing engines, characterized by increased specific impulse. This study focuses on a parametric investigation of the internal ballistics of a boron-containing solid fuel ramjet. A 2-D axisymmetric model
H. Kadosh, B. Natan
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The Physics of Fluids
Study of the engraving process is significant for interior ballistics. Due to the high transient and strong nonlinear characteristics of the engraving, research on the engraving mechanism is challenging.
Xiaoting Cui, Yong Huang, Hao Wang
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Study of the engraving process is significant for interior ballistics. Due to the high transient and strong nonlinear characteristics of the engraving, research on the engraving mechanism is challenging.
Xiaoting Cui, Yong Huang, Hao Wang
semanticscholar +1 more source
Observation of ballistic holes
Physical Review Letters, 1988We report the first direct observation of ballistic hole transport in semiconductors, via energy spectroscopy experiments. Light holes are preselected and injected via tunnelling into 31 nm thick p+ GaAs layers. About 10% of the injected holes have been found to traverse ballistically maintaining distributions ≈ 35 meV wide, with a mean free path of ...
, Heiblum, , Seo, , Meier, , Hickmott
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Ballistic and near ballistic transport in GaAs
IEEE Electron Device Letters, 1980Calculations which take into account collisions and intervally transfer in GaAs indicate that the electron transport in short GaAs structures is near-ballistic. High drift velocities (in excess of 5-107cm/s) may be achieved leading to potentially superior device performance.
M.S. Shur, L.F. Eastman
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Understanding Ballistic Injuries
Radiologic Clinics of North America, 2023Understanding the pathophysiology of a disease allows physicians to make a diagnosis, alter its natural course, and develop and implement appropriate preventative and management strategies. With ballistic injuries, an understanding of how the mechanism of injury translates to the injuries observed makes it possible to make sense of what can, at times ...
Noah, Ditkofsky +6 more
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Ballistic Trauma: Overview and Statistics – Wound Ballistics
2016Wound ballistics is the specialty in ballistics dealing with the interaction of bullet and tissue, resulting in lesions when humans or animals are hit. The lesions depend on the velocity and mass of the bullet as well as its design. Bullets are divided into low- and high-velocity bullets.
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The Mathematical Gazette, 1968
In the first war, not only did computers not exist, but the labour of calculating trajectories by a step by step process was regarded as quite prohibitive, and approximate formulae were the only resource. In the end these proved surprisingly accurate.
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In the first war, not only did computers not exist, but the labour of calculating trajectories by a step by step process was regarded as quite prohibitive, and approximate formulae were the only resource. In the end these proved surprisingly accurate.
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Journal of the Operations Research Society of America, 1955
Address of the Retiring President of the Operations Research Society of America at the Third Annual Meeting, New York, June 3, 1955. Operations Research, ISSN 0030-364X, was published as Journal of the Operations Research Society of America from 1952 to 1955 under ISSN 0096-3984.
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Address of the Retiring President of the Operations Research Society of America at the Third Annual Meeting, New York, June 3, 1955. Operations Research, ISSN 0030-364X, was published as Journal of the Operations Research Society of America from 1952 to 1955 under ISSN 0096-3984.
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Annals of Emergency Medicine, 1986
Wound profiles made under controlled conditions in the wound ballistics laboratory at the Letterman Army Institute of Research showed the location along their tissue path at which projectiles cause tissue disruption and the type of disruption (crush from direct contact with the projectile or stretch from temporary cavitation).
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Wound profiles made under controlled conditions in the wound ballistics laboratory at the Letterman Army Institute of Research showed the location along their tissue path at which projectiles cause tissue disruption and the type of disruption (crush from direct contact with the projectile or stretch from temporary cavitation).
openaire +2 more sources