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Publication Date
Sun Feb 03 2019
Journal Name
Iraqi Journal Of Physics
Volume
14
Issue Number
29
DOI
10.30723/ijp.v14i29.234
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ijp-234
Structural and optical properties of CdS:Sn thin films prepared by chemical spray pyrolysis method
CdS:Sn films
Spray pyrolysis
XRD and Optical properties.
Nadia Jasim Ghdeeb
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CdS and CdS:Sn thin films were successfully deposited on glass
substrates by spray pyrolysis method. The films were grown at
substrate temperatures 300 C°. The effects of Sn concentration on the
structural and optical properties were studied.
The XRD profiles showed that the films are polycrystalline with
hexagonal structure grown preferentially along the (002) axis. The
optical studies exhibit direct allowed transition. Energy band gap
vary from 3.2 to 2.7 eV.

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Publication Date
Wed Apr 25 2018
Journal Name
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Different Estimation Methods for System Reliability Multi-Components model: Exponentiated Weibull Distribution
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        In this paper, estimation of system reliability of the multi-components in stress-strength model R(s,k) is considered, when the stress and strength are independent random variables and follows the Exponentiated Weibull Distribution (EWD) with known first shape parameter θ and, the second shape parameter α is unknown using different estimation methods. Comparisons among the proposed estimators through  Monte Carlo simulation technique were made depend on mean squared error (MSE)  criteria

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Publication Date
Sat Oct 01 2016
Journal Name
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Factors affecting global virtual teams’ performance in software projects
Today the trend is to perform software development work via distributed geographical area among team
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