We consider superposition states of various numbers of eigenstates in order to study vibrating quantum billiards semiquantally. We discuss the relationship between Galërkin methods, inertial manifolds, and partial differential equations such as nonlinear Schrödinger equations and Schrödinger equations with time-dependent boundary conditions. We then use a Galërkin approach to study vibrating qu...

A phase-sensitive setup for near-field acoustic holography was established in order to determine the characteristic resonance modes of a vibrating membrane. The experiment was carried out using a frame drum as the vibrating system of interest. By exciting the membrane at certain fundamental frequencies and recording the complex signals from the pressure and particle velocity fields across the d...

Cellular manufacturing system, an application of group technology, has been considered as an effective method to obtain productivity in a factory. For design of manufacturing cells, several mathematical models and various algorithms have been proposed in literature. In the present research, we propose an improved version of discrete particle swarm optimization (PSO) to solve manufacturing cell ...

Fischer-tropsch catalysts with high activity and selectivity for olefins were produced using mordenite type SiO2/Al2O3= 12, 20, 28, 62 zeolite supported iron carbonyl compounds and were characterized by X-ray powder diffraction. The adsorptionof volatile Fe(CO)5 on the support surface was carried out under vacuum at room temperature. Reduction les...

Vibrating flip-flow screens (VFFS) with stretchable polyurethane sieve mats have been widely used in screening fine-grained materials recent years. In this work, the discrete element method (DEM) is to study process VFFS explain particle flow and separation behavior at scale. Unlike traditional vibrating screens, for VFFS, amplitude response of each point on elastic mat different everywhere. Th...

This study proposes a novel concept of actuator-driven frame-by-frame intermittent tracking for motion-blur-free video shooting of fast-moving objects. The camera frame and shutter timings are controlled for motion blur reduction in synchronization with a free-vibration-type actuator vibrating with a large amplitude at hundreds of hertz so that motion blur can be significantly reduced in free-v...

The effect of sinusoidal vibration is numerically investigated on the settling dynamics a heavy particle circular shape immersed in viscoplastic fluid obeying regularized Bingham–Papanastasiou (BP) model. Having modeled solid as highly viscous Newtonian droplet, we have relied finite element method for solving equations motion and surrounding fluid. Our numerical results could closely recover t...