Research indicated that many facial parameters contribute to generation of a "harmonious face" which is makes it more appealing to observers. There are different theories developed on which and how these par...
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The domain decomposition method is a superior method in solving big and complicated problem. This article puts forward a domain decomposition method based on the weighted average, this method decomposes the grid based...
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Wireless sensor networks (WSN) are a new selforganizing network as a kind of military applications by RF wireless communications, so its security is very important. Intrusion detection system always be deployed at eac...
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In a context where graph transformation is used to explore a space of possible solutions to a given problem, it is almost always necessary to inspect candidate solutions for relevant properties. This means that there ...
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In this paper, the finite-time stabilization problem of a class of networked control systems (NCSs) with bounded packet dropout is investigated. An iterative approach is proposed to model the NCSs with bounded packet ...
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In this paper, the finite-time stabilization problem of a class of networked control systems (NCSs) with bounded packet dropout is investigated. An iterative approach is proposed to model the NCSs with bounded packet dropout as switched linear systems. Both sensor-to-controller and controller-toactuator packet dropouts are considered simultaneously. Sufficient conditions for finite-time stabilization of the underlying systems are derived via linear matrix inequalities (LMIs) formulation. Lastly, an illustrative example is given to demonstrate the effectiveness of the proposed results.
With the popularity of Extensible Markup Language (XML) as the new standard of data exchange on the web, a large number of data sources are represented or encoded in XML format. Therefore, querying and searching XML d...
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Designs of p-doped in quantum well （QW） barriers and specific number of vertically stacked QWs are proposed to improve the optical performance of GaN-based dual-wavelength light-emitting diodes （LEDs）. Emission sp...
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Designs of p-doped in quantum well （QW） barriers and specific number of vertically stacked QWs are proposed to improve the optical performance of GaN-based dual-wavelength light-emitting diodes （LEDs）. Emission spectra, carrier concentration, electron current density, and internal quantum efficiency （IQE） are studied numerically. Simulation results show that the efficiency droop and the spectrum intensity at the large current injection are improved markedly by using the proposed design. Compared with the conventional LEDs, the uniform spectrum intensity of dual-wavelength luminescence is realized when a specific number of vertically stacked QWs is adopted. Suppression of electron leakage current and the promotion of hole injection efficiency could be one of the main reasons for these improvements.
Many technology and design-based disciplines are facing increasing demands to prepare students to perform effectively within computational and simulation environments. Further, students' spatial abilities are an i...
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The purpose of this study is two-fold: It aims to determine the factors that are influential in undergraduate students’ approaches to studying, self-efficacy, problem solving strategies, competency in mathematical th...
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The purpose of this study is two-fold: It aims to determine the factors that are influential in undergraduate students’ approaches to studying, self-efficacy, problem solving strategies, competency in mathematical thinking and reasoning; to identify any gender, grade level, and regional differences among the identified factors and on the overall competency in mathematical thinking and reasoning of undergraduate students and prospective teachers. The factors were identified through the adopted survey of approaches to studying and the competency test on mathematical thinking nd reasoning that was designed by the researcher. The scales were administered to 431 undergraduate students of mathematics, elementary and secondary mathematics education in Ankara and in Northern Cyprus and to prospective teachers of classroom teacher education and early childhood education of teacher training academy in Northern Cyprus. Exploratory and confirmatory factor analyses were employed to determine the factors and the differences with respect to gender, region and grade level separately and their dual, triple interaction effects were investigated through two two-way MANOVA and a three-way ANOVA analyses. Results showed that significant gender, grade level differences across identified dimensions of the survey and region, gender and grade level differences across the dimensions of the test and on the total test.
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