Functionally graded material (FGM) is an advanced class of composite material. In FGM, the volume fraction each constituent can be tailor-made across thickness for desired applications. this paper, analytical solution and numerical simulation free vibration transient heat conduction problem in a functionally pipe are considered. 3D elasticity theory adopted considering effect natural frequency ...

The arrester plays an important role in the protection of DC transmission system, and its thermal characteristics under different operating conditions greatly affect performance. To study multicolumn parallel arresters extreme a considering influence SF6 fluid, structural parameters ±500 kV Niu Cong project were applied for this research. Firstly, 3D model four-column zinc oxide installed on ne...

This paper studies transient thermal characteristics of ?-Ga2O3 Schottky barrier diode (SBD) packaged in TO-220. Planar and metal-oxide-semiconductor (MOS) trench anode types are evaluated. Junction temperature is estimated from dependency forward conduction measuring SBD characteristics. confirms the completeness processed junction on with extracted ideal factor height SBDs. The measured devel...

background: ventriculoatrial (va) conduction has an important role in the initiation and maintenance of some arrhythmias. the aim of this study was to evaluate whether clinical and electrophysiological parameters of atrioventricular (av) conduction can predict va conduction. methods: detailed demographic, electrocardiographic, and echocardiographic data were recorded in 54 consecutive patients ...

In this paper Mathematica is used to solve the moving boundary problem of freezing in a finite slab for higher order perturbations. Mathematica is a new system which makes it possible to do algebra with computer. More specifically, it enables researchers to find the location of the ice at any time for as high order of perturbation as one whishes. Using of Mathematica and outer solution and an i...

introduction: vestibular evoked myogenic potential (vemp) has recently been broadly studied in vestibular disorders. as it is evoked by loud sound stimulation, even mild conductive hearing loss may affect vemp results. bone-conducted (bc) stimulus is an alternative stimulation for evoking this response. this study aims to assess the characteristics of bc-vemp in different groups of patients.   ...

Sockeye is a heat pipe analysis application based on the Multiphysics Object-Oriented Simulation Environment (MOOSE) finite element framework. The primary purpose of to provide transient simulation tool be used in nuclear microreactor designs. provides capability perform one-dimensional, two-phase, compressible flow working fluid and two-dimensional, axisymmetric conduction for cladding its sur...

A three-dimensional conduction model has been developed to predict the transient temperature distribution inside a thick solid that is irradiated by a moving laser source, and the changing shape of a groove carved into it by evaporation of material. The laser may operate in CW or in pulsed mode with arbitrary temporal as well as spatial intensity distribution. The governing equations are solved...

The transient hot-wire method has been widely used to measure the thermal conductivity of fluids. The ideal working equation is based on the solution of the transient heat conduction equation for an infinite linear heat source assuming no natural convection or thermal end effects. In practice, the assumptions inherent in the model are only valid for a portion of the measurement time. In this st...

One 3-D transient temperature field model for a thin uniform plate caused by moving laser heat source is described in present study. The with power density Gaussian-distribution form considered when finite-thin heated. By using the separate variable method and Newton-Cotes method, semi-analytical solution of conduction equation finite obtained. Numerical results show that effect distribution, s...