نتایج جستجو برای: modeling structural equations
تعداد نتایج: 973807 فیلتر نتایج به سال:
ethylene was homopolymerized over ziegler-natta catalyst and the homopolymerization was modeled using moment equations. mechanism was modeled according to five different reaction centers of catalyst. for each center, there are different reaction rate coefficients; therefore the final product of each center would be expected to be different. modeling results showed good conformity to the experim...
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
Introduction: Bullying is widely considered as a serious personal, social and educational issue influencing a significant part of the students. The object of the study is to foretell bullying based on thrill-seeking and the atmosphere of the school together with self-concept mediation in students. Methods: The research is conducted through a descriptive methodology while using solidarity schem...
Abstract: The main goal of the present study was to investigate the role of entrepreneurship education model (KAB) to promote trainees entrepreneurial skills in vocational and trainees centers. This study is practical and its methodology is descriptive and is based on the structural modeling of the equations. The population of this study includes the trainees in state-run professional and techn...
This study was conducted aiming to survey role of feeling of energy in relation of evolution leadership with staff contribute in work creativity. Statistical population was employees and staffs of Hier Company who were 525 persons (2009 summer). 332 employees were selected for contribution in the study by quota stratified sampling. Research instruments were 8-question feeling-of-energy question...
in this paper, the capabilities of modeling linear viscoelasticty in a finite element method software package (comsol multiphysics) have been investigated. the governing equations of linear viscoelasticity have been developed for 2d cases of plane stress and plane strain. these equations have been verified by solving a related engineering example. since the developed equations are suitable for ...
neighborhood attachment is closely related to concrete and abstract conceptions that set the scene for a variety of interactions among the residents. it is on the basis of social-physical location which happens over time. neighborhood attachment also enhances the possibility of residents’ social participation in urban neighborhoods and has a bilateral relationship with residents’ satisfaction. ...
Application of modern irrigation and drainage canals for efficient use of water resources is necessary. Thus , identifying the factors influencing farmers ’ attitudes toward participation in irrigation and drainage projects (IDP) is essential. The purpose of this study is to identify factors affecting attitude toward participation in IDP in Syakh Darenjan, Fars Province , Iran. Stratified rando...
the purpose of this study is to examine the possible impact of value systems on earnings management in france, tunisia and canada. cultural values include power distance, uncertainty avoidance, individualism, masculinity and long-term orientation. the cross-cultural study uses the method of structural equations trough lisrel approach. the examination covers the period between 2003 and 2009. fin...
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