We review the concept of the Fundamental Plane (FP), and present new results on the near–infrared FP. We show that the K–band FP differs both from the optical form and the virial expectation under the assumption of constant (M/L) and homology. Systematic variations of only the stellar populations parameters (age, metallicity, IMF) cannot reproduce the slopes of the FP simultaneously at both the...

In this research, the effect of the first order magnetic field on the ground-state of a centered hydrogenic donor impurity in a GaAs/AlAs spherical quantum dot has been calculated. The perturbation method has been used within the framework of effective mass approximation for these calculations. Overall, the analysis shows that a proper choice of quantum dot radius and magnetic field can signifi...

In this research, the effect of the first order magnetic field on the ground-state of a centered hydrogenic donor impurity in a GaAs/AlAs spherical quantum dot has been calculated. The perturbation method has been used within the framework of effective mass approximation for these calculations. Overall, the analysis shows that a proper choice of quantum dot radius and magnetic field can signifi...

Solidity is one of the main factors that influence performance a wind turbine. The solidity an H-Darrieus turbine optimized in terms blade number, chord length, and rotor radius to get maximum power coefficient using Taguchi L16 (4^3) array. Power values are calculated by Double Multiple Stream Tube model house built MATLAB code according orthogonal found as 0.4728 for two-bladed with length 0....

The binding energy of a negatively charged hydrogenic impurity with onand offcenter position in a spherical Gaussian quantum dot was calculated with the configuraction interaction method. Our calculations show that Eb is always positive for on-center impurities with a maximum near to the radius for one-electron stability of the potential well Rc. For off-center positions the binding energy can ...

We present the results of a comprehensive theoretical investigation on the Period-Radius (PR) relation of classical Cepheids based on new sequences of full amplitude, nonlinear convective models constructed by adopting a wide range of both stellar masses and chemical compositions. In the period range 0.9 ≤ logP ≤ 1.8 a very good agreement is found between theoretical predictions and current ava...

PURPOSE Proximal row carpectomy (PRC) is a clinically useful motion-sparing procedure for the treatment of certain degenerative conditions of the wrist. Clinical outcome studies after PRC have shown that wrist flexion-extension averages approximately 60% of that of the contralateral wrist. The purpose of this study was to determine how the kinematics of the wrist are altered after PRC. METHOD...

Abstract A delay system is represented by a linear difference equation. The system parameters and the delays are assumed to be unperfectly known. The output vector is perturbed by a bounded external disturbance vector. The addressed problem is to characterize conditions which guarantee that the output vector remains in a given domain defined by a set of symmetrical linear constraints. This prob...