Results 51 to 60 of about 165,617 (194)

Anomalous diffusion in the resonant quantum kicked rotor

open access: yes, 2010
We study the resonances of the quantum kicked rotor subjected to an excitation that follows a deterministic time-dependent prescription. For the primary resonances we find an analytical relation between the long-time behavior of the standard deviation ...
A. Romanelli   +25 more
core   +1 more source

Magneto-dielectric properties of doped ferrite based nanosized ceramics over very high frequency range

open access: yesEngineering Science and Technology, an International Journal, 2016
In the present study, indium doped nano sized nickel zinc cobalt based ferrite ceramics with composition Ni0.5Zn0.3Co0.2InxFe2-xO4 (x = 0.2 and 0.4) were synthesized by a co-precipitation technique.
Ashish Saini   +5 more
doaj   +1 more source

Mechanical analysis of helmeted headforms under ballistic impact with implications in performance evaluation of ballistic helmets

open access: yesFrontiers in Mechanical Engineering, 2023
Behind helmet blunt trauma is a significant health concern in modern warfare. The ballistic response of the human head under ballistic impact is highly sought. Towards this end, we conducted ballistic experiments on three different headforms.
Atul Harmukh   +6 more
doaj   +1 more source

One-dimensional ballistic transport with FLAPW Wannier functions [PDF]

open access: yes, 2012
We present an implementation of the ballistic Landauer-B\"uttiker transport scheme in one-dimensional systems based on density functional theory (DFT) calculations within the full-potential linearized augmented plane-wave (FLAPW) method.
Freimuth, Frank   +4 more
core   +2 more sources

Interaction correction to the conductance of a ballistic conductor

open access: yes, 2007
In disordered metals, electron-electron interactions are the origin of a small correction to the conductivity, the "Altshuler-Aronov correction". Here we investigate the Altshuler-Aronov correction of a conductor in which the electron motion is ballistic
A. I. Larkin   +9 more
core   +1 more source

SOME FORENSIC ASPECTS OF BALLISTIC IMAGING [PDF]

open access: yes, 2010
Analysis of ballistics evidence (spent cartridge casings and bullets) has been a staple of forensic criminal investigation for almost a century. Computer-assisted databases of images of ballistics evidence have been used since the mid-1980s to help ...
Cork, Daniel L.   +2 more
core   +1 more source

Submarine Indoor Air Quality and Crew Health: A Critical Narrative State-of-the-Art Review of Respiratory and Cardiovascular Risks

open access: yesToxics
Background: Submarines represent extremely confined environments where breathing air is continuously recirculated for extended periods with minimal renewal, generating complex multipollutant atmospheres. Objectives: This critical narrative review aims to
Jérôme Sinquin   +5 more
doaj   +1 more source

Transparent glass–ceramics for ballistic protection: materials and challenges

open access: yesJournal of Materials Research and Technology, 2019
The military ballistic protection market has reached approximately US$ 10 billion/year, and the civil market is also very significant and is steadily increasing, which drives research for new ballistic protection alternatives.
Leonardo Sant’Ana Gallo   +4 more
doaj   +1 more source

Ballistic heat transport of quantum spin excitations as seen in SrCuO2

open access: yes, 2010
Fundamental conservation laws predict ballistic, i.e., dissipationless transport behaviour in one-dimensional quantum magnets. Experimental evidence, however, for such anomalous transport has been lacking ever since. Here we provide experimental evidence
Behr, G.   +7 more
core   +1 more source

Ballistic limit velocity of tungsten alloy spherical fragment penetrating Ti/AlTi-laminated composite target plates

open access: yesAdvanced Composites Letters, 2020
To determine the ballistic limit velocity of titanium–titanium tri-aluminide (Ti/Al 3 Ti)-laminated composites under the action of tungsten alloy spherical fragments, a type of 12.7 mm ballistic gun loading system was used to test the tungsten alloy ...
Yingbin Liu   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy