نتایج جستجو برای: double walled cylinder
تعداد نتایج: 274994 فیلتر نتایج به سال:
Owing to their unusual properties, carbon nanostructures such as nanotubes and fullerenes have caused many new nanomechanical devices to be proposed. One such application is that of nanoscale oscillators which operate in the gigahertz range, the so-called gigahertz oscillators. Such devices have potential applications as ultrafast optical filters and nanoantennae.While there are difficulties in...
Triple-walled carbon nanotubes (TWNTs) with three concentric cylindrical graphene layers have been selectively synthesized for the first time from decomposition of ferrocene encapsulated inside double-walled carbon nanotubes, and were identified by high-resolution transmission electron microscopy (HRTEM) and Raman spectroscopy; HRTEM observations reveal that the formation of inner tubes of TWNT...
Abstract The use of lightweight metal cylinders is great significance to artillery weapon systems in terms significant mass reduction, service life extension, power consumption reduction and operational effectiveness. Based on the load conditions provided by classical internal ballistic theory, a high precision finite element model solved explicit integration algorithm with central difference. ...
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