Results 201 to 210 of about 6,303 (264)
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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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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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Computational fluid-dynamic modeling of the internal ballistics of paraffin-fueled hybrid rocket
Aerospace Science and Technology, 2019Computational fluid dynamics is becoming a key tool for reducing the hybrid rocket operation uncertainties and development cost, but numerous challenges, due to the complexity of modeling the solid fuel consumption mechanism and the interaction with the ...
G. D. Di Martino +3 more
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Journal of Trauma and Acute Care Surgery, 2019
The wound ballistics literature contains several misconceptions about the physical effects of penetrating projectiles in tissue and tissue simulants.
Panagiotis K. Stefanopoulos +5 more
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The wound ballistics literature contains several misconceptions about the physical effects of penetrating projectiles in tissue and tissue simulants.
Panagiotis K. Stefanopoulos +5 more
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Soft body armor time-dependent back face deformation (BFD) with ballistics gel backing
Composite structures, 2019This paper presents a method for obtaining time dependent back face deformation (BFD) data for body armor during ballistic impact using a clear ballistics gelatin backing and high-speed cameras to capture the deformation profile.
Tyler Goode +4 more
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Gunshot Wounds: Ballistics and Imaging Findings.
Seminars in ultrasound, CT, and MR, 2019Ballistic traumas are defined by a projectile entering the body. Such projectiles include bullets, birdshot, and metal fragments from the covering or the contents of an explosive device.
A. Pinto +6 more
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Ballistic Trauma: Wound Ballistics—An Overview
Wound 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.openaire +2 more sources
Individual synthetic head models in wound ballistics - A feasibility study based on real cases.
Forensic Science International, 2019Synthetic models, also called "surrogates", are commonly used in wound ballistics in order to simulate human tissues. Despite several surrogates are worldwide accepted and used; some of them have not been yet fully validated and their limits for forensic
F. Riva +4 more
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The Journal of Trauma: Injury, Infection, and Critical Care, 1988
Shotguns are popular world wide and more of these weapons exist than the rifled types. With an increasing incidence and prevalence of gunshot wounds it is important for traumatologists to be familiar with shotgun wound ballistics. Shotgun wounds differ from those of other missiles because the spectrum of wound severity is large owing to the fact that ...
G J, Ordog +2 more
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Shotguns are popular world wide and more of these weapons exist than the rifled types. With an increasing incidence and prevalence of gunshot wounds it is important for traumatologists to be familiar with shotgun wound ballistics. Shotgun wounds differ from those of other missiles because the spectrum of wound severity is large owing to the fact that ...
G J, Ordog +2 more
openaire +2 more sources