نتایج جستجو برای: truncated conical shells
تعداد نتایج: 53839 فیلتر نتایج به سال:
Abstract Underwater torpedo interception could be conducted by shell perforation or even warhead impact detonation with high speed projectiles. This work deals the projectile water entry and sequent penetration into underwater whereby both aluminium explosive are numerically studied. The model aluminum validated against test data for penetration. Targets located under 20 cm depth where shells a...
Many gamma ray bursts (GRBs) have been observed with the Burst-Alert and X-Ray telescopes of the Swift satellite. The successive ‘pulses’ of these GRBs end with a fast decline and a fast spectral softening, until they are overtaken by another pulse, or the last pulse’s decline is overtaken by a less rapidly-varying ‘afterglow’. The fast decline-phase has been attributed, in the currently-explor...
Femtosecond lasers (FSL) are playing an increasingly important role in materials research, characterization, and modification. Due to an extremely short pulse width, interactions of FSL irradiation with solid surfaces attract special interest, and a number of unusual phenomena resulted in the formation of new materials are expected. Here, we report on a new nanostructure observed after the inte...
Bioconversion of agricultural waste products to produce value-added fuels and chemicals offers potential economical, environmental and strategic advantages over traditional fossil-based products. The kinetics of acid hydrolysis of cellulose isolated from banana skin, cowpea shells, maize stalks and rice husk (agricultural waste) were studied at temperature ranging between 70 – 100C in a stirred...
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