Results 91 to 100 of about 323,665 (250)
SmartBullets: A Cloud-Assisted Bullet Screen Filter based on Deep Learning [PDF]
arXiv, 2019 Bullet-screen is a technique that enables the website users to send real-time comment `bullet' cross the screen. Compared with the traditional review of a video, bullet-screen provides new features of feeling expression to video watching and more iterations between video viewers.
arxiv
Intracranial ricocheted-bullet injuries: An overview and illustrative case
Journal of Acute Disease, 2018 The impact of a bullet by firearm is a mortal entity that in recent years has been on the rise due to the increase in crime, confrontations, among other acts of violence. Brain injuries by firearm account for 33.3% of all fatal injuries from this type of
Mohammed Maan AbdulAzeez +7 more
doaj +1 more source
Bullet Retarding Forces in Ballistic Gelatin by Analysis of High Speed Video [PDF]
arXiv, 2013 Though three distinct wounding mechanisms (permanent cavity, temporary cavity, and ballistic pressure wave) are described in the wound ballistics literature, they all have their physical origin in the retarding force between bullet and tissue as the bullet penetrates.
arxiv
RECONSTRUCTION OF THE ORBITS AFTER GUNSHOT WITH THE DAMAGE OF EYEBALLS (A CASE REPORT)
Офтальмохирургия, 2015 The authors present an unusual case and clinical case report of a 21 year old patient who sustained a penetrating gunshot injury of his head (and both orbits). The left eye was dislocated in front of the eyelids and heavily damaged.
L. Hejsek +3 more
doaj
Measuring Bullet Velocity with a PC Soundcard [PDF]
arXiv, 2006 This article describes a simple method for using a PC soundcard to accurately measure bullet velocity. The method involves placing the microphone within a foot of the muzzle and firing at a steel target between 50 and 100 yards away. The time of flight for the bullet is simply the recorded time between muzzle blast and sound of the bullet hitting the ...
arxiv
A new approach to the characteristic polynomial of a random unitary matrix [PDF]
arXiv, 2020 Since the seminal work of Keating and Snaith, the characteristic polynomial of a random Haar-distributed unitary matrix has seen several of its functional studied or turned into a conjecture; for instance: $ \bullet $ its value in $1$ (Keating-Snaith theorem), $ \bullet $ the truncation of its Fourier series up to any fraction of its degree ...
arxiv
Conservative management of intraventricular migrating intracranial bullet
Romanian Neurosurgery, 2023 Background. The high mortality rate of a cranial bullet injury, the catastrophic damage of vital tissue, and the frequency of gunshot accidents made managing such cases highly effortful in neurosurgical trauma centres.
Amjed Hassan Saheb +7 more
doaj
A method for testing bullets at reduced velocity [PDF]
arXiv, 2008 Reconstruction of shooting events occasionally requires testing of bullets at velocities significantly below the typical muzzle velocity of cartridge arms. Trajectory, drag, and terminal performance depend strongly on velocity, and realistic results require accurately reconstructing the velocity.
arxiv
The Truth About Ballistic Coefficients [PDF]
arXiv, 2007 The ballistic coefficient of a bullet describes how it slows in flight due to air resistance. This article presents experimental determinations of ballistic coefficients showing that the majority of bullets tested have their previously published ballistic coefficients exaggerated from 5-25% by the bullet manufacturers.
arxiv
Gyroscopic Stability of Open Tipped Match Style Rifle Bullets [PDF]
arXiv, 2014 Earlier work has produced formulas for predicting stability of rifle bullets of near uniform density and also for plastic-tipped rifle bullets. These formulas have been shown to be accurate within 5%. However, the original Miller stability formula for metal bullets of near uniform density underestimates the stability of match style open tipped rifle ...
arxiv