LIN, D., ET AL.: Identification of ventricular tachycardia using intracavitary ventricular electrograms: analysis of time and frequency domain patterns. Tachycardia detection by impladtable antitachycardia devices using rate alone has major limitations. Several alternative methods have bden proposed to distinguish ventricular tachycardia or ventricular fibrillation from normal sinus rhythm usin...

In the context of the problem of heat conduction in one-dimensional systems, we present an analytical calculation of the instantaneous energy transfer across a tagged particle in a one-dimensional gas of equal-mass, hard-point particles. From this, we obtain a formula for the steady-state energy flux, and identify and separate the mechanical work and heat conduction contributions to it. The nat...

Metal foams are a class of materials with immense potential. The complex topology in these lightweight systems is responsible for their outstanding mechanical and thermal properties. Furthermore, this the same reason why assessment metal challenging. While conventional analytical techniques provide useful data, modern-age technology allows to explore transfer great detail by building digital tw...

We address the problem of two-dimensional heat conduction in a solid slab embedded with an isothermal, symmetric pipe of general cross section. Similar formulations have applications in continuum mechanics and electricity. The main objective of this work is to develop a Shape Optimization algorithm that will reveal the optimal shapes of the pipe such that the conduction rate is maximized or min...

An analytical solution to the transient heat conduction for a two dimensional cylindrical fin with general boundary conditions is obtained by the principle of superposition and separation variables. In the analysis, homogeneous material properties and thickness, the convective heat transfer coefficient, the ambient temperature and the fin properties are assume to be constant. The closed form tr...

The accuracy of the classical heat conduction model, known as Fourier’s law, is highly questioned, dealing with micro- and nanosystems biological tissues. In other words, results obtained from equations deviate available experimental data. It means that continuum diffusion equation insufficient inappropriate for modeling transport in these cases. There are several techniques non-Fourier conduct...

Abstract The present work considers a two-dimensional (2D) heat conduction problem in the semi-infinite domain based on classical Fourier model and other non-Fourier models, e.g., Maxwell–Cattaneo–Vernotte (MCV) equation, parabolic, hyperbolic, modified hyperbolic dual-phase-lag (DPL) equations. Using integral transform technique, Laplace, transforms, we provide solution of (Green’s function) L...