Abstract. The mathematical model for semiconductor devices in three space dimensions are numerically discretized. The system consists of three quasi-linear partial differential equations about three physical variables: the electrostatic potential, the electron concentration and the hole concentration. We use standard mixed finite element method to approximate the elliptic electrostatic potentia...

An isogeometric boundary element method (IGABEM) is developed for the analysis of two-dimensional linear and isotropic elastic bodies governed by couple stress theory. This theory simplest generalized continuum that can effectively model size effects in solids. The fundamental solutions are explicitly derived used to construct integral equations. A new equation arises obtain moments rotations i...

Bu makale tasavvuf düşüncesinde yaratıcı muhayyile ögesi olarak himmeti ele almıştır. Himmet en genel mânasıyla yetkin insandaki ilâhî enerjidir. Niyet, azim, kasd, cemˊiyyet, nefes gibi terimler de himmete yakın anlamda kullanılır. Himmet, Muhyiddîn İbnü’l-Arabî’nin yorum ve değerlendirmeleriyle semantik değişime uğramış insanın yaratıcılık yönünü ifade eden bir ıstılah hâline gelmiştir. Buna ...

ABSTRACT- Titanium is a beneficial element for plant since its promotive effect on plant metabolism has been well documented. However, the physiological role of this trace element in tomato is not clear. This experiment was conducted as a complete randomized design to study two concentrations of titanium (1 and 2 mg/L Ti) and 0 as control on physiological and nutrient properties of tomato cv. F...

A parametric finite element approximation of incompressible two-phase flow with soluble surfactants is presented. The Navier–Stokes equations are coupled to bulk and surfaces PDEs for the surfactant concentrations. At the interface adsorption, desorption and stress balances involving curvature effects and Marangoni forces have to be considered. A parametric finite element approximation for the ...

X-ray computed tomography (CT) images obtained with a polychromatic X-ray source were simulated by computer for homogeneous solutions and suspensions containing a heavy element. When the K-edge of the element was near the peak energy of the polychromatic X-ray spectrum, the degree of beam hardening in the simulated CT image strongly depended on the atomic number and molar concentration of the ...

The relationship between tracheary element differentiation, cell proliferation and growth hormones was examined in agar-grown soybean callus. The time course of cell division and tracheary element formation in tissues grown on a medium containing 5 x 10(-7)m kinetin and 10(-5)m NAA was determined by means of maceration technique. After a slight lag period, a logarithmic increase in cell number ...