laser forming is a modern process which is mainly used for forming metals. different lasers are used in this regard that includes nd: yag and co2. in this study, forming bi-layer sheets of aluminum/ceramic by laser was investigated. furthermore, effect of uniform and gaussian heat flux distribution in different power, velocity, and beam diameters on bending angle was studied. fem simulation ind...

adsorption of co2 on the surface of single-wall zigzag (5,0) and armchair (4,4) carbon nanotubes (swcnts) were studied through using density functional theory (dft) calculations. optimizations of geometric were performed at the b3pw91 level of 6-311++g** method standard basis set using gaussian 03 package of program [1]. structural models were optimized and adsorption energies, band gap, charge...

Abstract: Stochastic models such as mixture models, graphical models, Markov random fields and hidden Markov models have key role in probabilistic data analysis. In this paper, we used Gaussian mixture model to the pixels of an image. The parameters of the model were estimated by EM-algorithm.   In addition pixel labeling corresponded to each pixel of true image was made by Bayes rule. In fact,...

Mixed models are widely used to analyze longitudinal data. In their conventional formulation as linear mixed models (LMMs) and generalized LMMs (GLMMs), a commonly indispensable assumption in settings involving longitudinal non-Gaussian data is that the longitudinal observations from subjects are conditionally independent, given subject-specific random effects. Although conventional Gaussian...

Pergerakan harga cabai di suatu daerah sangat mungkin dipengaruhi oleh pergerakan sekitarnya. Ketika gangguan musiman terjadi pusat produksi yang mempengaruhi hasil panen, maka secara otomatis kelangkaan stok fluktuasi harga. Peramalan rawit diperlukan untuk menjaga keseimbangan permintaan dan penawaran. dalam penelitian ini menggunakan model Generalized Space Time Autoregressive (GSTAR) dengan...

The main aim of this work is to introduce the Gaussian Pell quaternion QGpn and Pell-Lucas QGqn, where components QGqn are numbers pn qn, respectively. Firstly, we obtain recurrence relations Binet formulas for QGqn. We use prove Cassini?s identity these quaternions. Furthermore, give some basic identities such as summation formulas, terms with negative indices generating functions complex