Results 231 to 240 of about 78,206 (273)
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Physical Limitations in Electron Ballistics*
Bell System Technical Journal, 1945The subject of this talk is “Physical limitations in electron ballistics”. It is pleasant to have a chance to talk about such physical limitations, because there is so little we can do about them. And, although these limitations are apt to be discouraging, a knowledge of them is very valuable, for it keeps us from spending time trying, like the ...
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Bilayer Graphene Nanoribbon Mobility Model in Ballistic Transport Limit
Journal of Computational and Theoretical Nanoscience, 2013Bilayer graphene nanoribbon (BGN) with tunable band gap which can be controlled by an external electric field is focused in our study. AB-stacked system with a stable structure is considered in a FET channel. Based on the assumed structure carrier density effect on charge mobility has been reported at different temperatures.
Mousavi, S. Mahdi +5 more
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Ballistic Limit Predictions with Quasi-Static Cavitation Fields
International Journal of Protective Structures, 2010Recent work on ductile hole enlargement under plane-stress conditions has revealed that while the internal pressure does not reach a saturation level, the energy increment required to create a nominal hole volume increment admits a finite asymptotic value.
Tal Cohen, Rami Masri, David Durban
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1978
Abstract : The critical impact velocity for the perforation of a target can be calculated with four techniques, two of which involve extrapolation of residual speed data and two of which involve a statistical approach. These techniques are described briefly and a nomenclature associated with each technique is suggested. The limit velocity for 30 groups
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Abstract : The critical impact velocity for the perforation of a target can be calculated with four techniques, two of which involve extrapolation of residual speed data and two of which involve a statistical approach. These techniques are described briefly and a nomenclature associated with each technique is suggested. The limit velocity for 30 groups
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Columbus debris shielding experiments and ballistic limit curves
International Journal of Impact Engineering, 1999Abstract An extensive Light Gas Gun test campaign has been performed to develop a high resistance shielding to protect the Columbus module - the European laboratory attached to the International Space Station - against the threat posed by orbital debris.
Roberto Destefanis +2 more
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Possible ballistic effects in GaAs current limiters
IEEE Electron Device Letters, 1980Two-terminal N+NN+ current limiters have been fabricated in GaAs by selective ion-implantation of the N+ and N regions into undoped substrate material. Voltage-current characteristics have been measured at 77°K, 300°K and 400°K and reveal current limiting properties above about 0.8 to 1.0 volts at all three temperatures.
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A new penetration equation for ballistic limit analysis
Journal of Thermoplastic Composite Materials, 2013A new penetration equation for ballistic limit analysis (BLA) of a projectile–target pair is developed and presented. A critical review of the classic BLA (CBLA) has identified that the CBLA penetration equations do not satisfy the conservation of momentum and energy principles simultaneously and completely.
Bazle Z (Gama) Haque, John W Gillespie
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Ballistic limit of aluminium tank: An experimental study
2014 IEEE International Conference on Control System, Computing and Engineering (ICCSCE 2014), 2014This paper presents the details of experimental set-up to determine the ballistic limit for the aluminium tank for two cases, empty and water-filled tank. The experiment was carried out at Science and Technology Research Institute for Defense (STRIDE) Batu Arang. The aluminum tank was 3 mm thick, 150 mm wide and 750 mm long. At the end of the tank were
MR. Aziz, W. Kuntjoro, N.V. David
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Ballistic Limit of Single and Layered Aluminium Plates
Strain, 2011Abstract: This paper presents an experimental and finite‐element investigation of ballistic limit of thin single and layered aluminium target plates. Blunt‐, ogive‐ and hemispherical‐nosed steel projectiles of 19 mm diameter were impacted on single and layered aluminium target plates of thicknesses 0.5, 0.71, 1.0, 1.5, 2.0, 2.5 and 3 mm with the help ...
M. A. Iqbal, N. K. Gupta
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The ballistic FET: design, capacitance and speed limit
International Electron Devices Meeting. Technical Digest (Cat. No.01CH37224), 2002In this paper we present a design methodology for the ballistic FET (BFET) which illuminates many topics currently under discussion such as the injection velocity, the role of the contacts, and the meaning of the capacitance and mobility. Both InGaAs/InAlAs in the 20-30 nm gate length range, and Si/SiO/sub 2/ FETs in the 10-20 nm range are simulated ...
P.M. Solomon, S.E. Laux
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