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- 저자 : TRAN Loc Xuan (검색결과 2 건)
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Isogeometric analysis for nonlinear thermomechanical stability of functionally graded plates
Tran, Loc V.,Phung-Van, P.,Lee, Jaehong,Wahab, M. Abdel,Nguyen-Xuan, H. Elsevier 2016 COMPOSITE STRUCTURES -BARKING THEN OXFORD- Vol.140 No.-
<P><B>Abstract</B></P> <P>Equilibrium and stability equations of functionally graded material (FGM) plate under thermal environment are formulated in this paper based on isogeometric analysis (IGA) in combination with higher-order shear deformation theory (HSDT). The FGM plate is made by a mixture of two distinct components, for which material properties not only vary continuously through thickness according to a power-law distribution but also depend on temperature. Temperature field is assumed to be constant in plate surfaces and uniform, linear and nonlinear through plate thickness, respectively. The governing equation is in nonlinear form based on von Karman assumption and thermal effect. A NURBS-based isogeometric finite element formulation is capable of naturally fulfilling the rigorous <I>C</I> <SUP>1</SUP>-continuity required by the present plate model. Influences of gradient indices, boundary conditions, temperature distributions, material properties, length-to-thickness ratios on the behavior of FGM plate are discussed in details. Numerical results demonstrate excellent performance of the present approach.</P>
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Importance of Lecturer's Role in Management Education
TRINH Viet Xuan,NGUYEN Duyen Thi Kim,NGUYEN Dat Ngoc,TRAN Loc Xuan,PHAM Huong Thi Lan 한국유통과학회 2024 유통과학연구 Vol.22 No.1
Purpose: This study is undertaken from the standpoint of student-centered learning and theoretical paradigms that have developed in the business world and display conceptual affinities: the transfer of knowledge and training. Research design, data and methodology: Utilizing questionnaire surveys and multivariate data analysis are two research methodologies (CFA, SEM). Around 201 undergraduate students who were studying in Vietnam provided the data. Results: The results show importance of the faculty role in students’ knowledge acquisition. The findings show that Ability to form a good relationship positively influences the development of competence. Additionally, neither ability to develop a good relationship nor learning drive or knowledge acquisition are significantly correlated with one another. The growth of competencies is positively impacted by the suitability of teaching approaches. Knowledge acquisition is favorably impacted by learning motivation, and knowledge acquisition in turn is positively impacted by competence development. Conclusions: Research has shown the important role of lecturers in students' knowledge acquisition. From this result, some implications related to lecturers are also given to help improve students' ability to acquire knowledge. Building good relationships with students (ready to answer questions, positive relationships) and good expertise will help increase learning motivation, ability to acquire knowledge as well as improve development for students.
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