We describe computational modeling of flaring horns and piecewise conical bores using “Truncated Infinite Impulse Response” (TIIR) digital filtering techniques. The approach yields highly efficient and accurate computational models and is therefore appropriate for real-time simulations of woodwind and brass musical instruments.

By applying ’Darmois-Israel formalism’, we establish a new class of thin shell wormhole in the context of global monopole resulting from the breaking of a global O(3) symmetry. Since global monopole is asymptotically conical ( no longer asymptotically flat ), we call it as conical thin shell wormhole. Different characteristics of this conical thin shell wormhole, namely, time evolution of the t...

Human immunodeficiency virus (HIV) capsid proteins spontaneously assemble around the genome into a protective protein shell called the capsid, which can take on a variety of shapes broadly classified as conical, cylindrical, and irregular. The majority of capsids seen in in vivo studies are conical in shape, while in vitro experiments have shown a preference for cylindrical capsids. The factors...

We study gravitationally collapsing models of pressureless dust, fluids with pressure, and the generalized Chaplygin gas (GCG) shell in (2+1)-dimensional spacetimes. Various collapse scenarios are investigated under a variety of the background configurations such as anti-de Sitter(AdS) black hole, de Sitter (dS) space, flat and AdS space with a conical deficit. As with the case of a disk of dus...

The conical-cylindrical shell is prone to stress concentration in the convex cone position under action of deep-sea pressures. This results unidirectional or bidirectional positive tensile stresses on surfaces shell. a large, welded structure. Welding residual was generated at cone-column joint position, resulting high-stress this location. Under both welding and seawater pressure, cracks easil...

Controlling the wettability using microstructures has been studied because of many applications. In particular, bio-mimetic modeled after self-cleaning properties lotus leaf have extensively studied. Despite studies successfully achieving fabrication superhydrophobic to superhydrophilic surfaces through manipulation microstructures, effect rough on contact angle remains an area inquiry. this st...

Shell foundations are often used to raise the carrying capacity of a structure on weak soils. In cases where large superstructure loads must be transferred poorer soils, shell more cost-effective than ordinary shallow foundations. Advances in study and design shell-type have shown their superiority over traditional footings The current aims investigate shape’s influence ultimate load capacity. ...