Comparative Computational Analysis of NATO 5.56 mm, APM2 7.62 mm and AK-47 7.82 Bullet Moving at Mach 2.0 in Close Vicinity to the Wall Various rifles require unique bullets. Each bullet has its capability, speed, impact on target. In metropolitan warfare, several bullets are shot close solid walls. These near walls affect pressure distribution over entire asymmetric bullet. The influence a ref...

The recent detection of significant linear polarization at mm and sub-mm wavelengths in the spectrum of Sgr A* (if confirmed) will be a useful probe of the conditions within several Schwarzschild radii (rS) of the event horizon at the Galactic Center. Hydrodynamic simulations of gas flowing in the vicinity of this object suggest that the infalling gas circularizes when it approaches within 5− 2...

BACKGROUND The behavior and optimal management of papillary thyroid microcarcinomas (PTMCs) after thyroidectomy remain unclear. The purpose of this study was to compare the clinicopathologic features and tumor recurrence rates of patients with PTMCs ≤5 mm and >5 mm in diameter after total thyroidectomy. METHODS A group of patients with PTMCs ≤5 mm (n=83) has been compared to a group with >5 m...

We have developed a technique to measure low-power electromagnetic fields from mm-wave devices non-intrusively by combining metasurface, designed absorb power and focus the radiated in thermally isolated region, with an infrared (IR) camera. The metasurface consists of elements low mass highly emissive material for maximal IR conversion incident wave. camera captures converted energy indirectly...