نتایج جستجو برای: relations and interactions create a complicated system
تعداد نتایج: 20569476 فیلتر نتایج به سال:
Abstract: The governing equations of motion for a drill string considering coupling between axial, lateral and torsional vibrations are obtained using a Lagrangian approach. The result leads to a set of non-linear equations with time varying coefficients. A fully coupled model for axial, lateral, and torsional vibrations of drill strings is presented. The bit/formation interactions are assumed ...
Islam as a universal religion has a special approach for establishment of international relations. Different dimensions of this approach can be found in the accounts of the Prophet’s (s) interactions with other nations. Theoretical foundations of Islamic international relations, inspired by Qur’anic principles, have consolidated the mechanism of these relations in practice. Meantime, a survey o...
background: there are many studies to investigate the effects of each interacting component of tumor-immune system interactions. in all these studies, the distinct effect of each component was investigated. as the interaction of tumor-immune system has feedback and is complex, the alternation of each component may affect other components indirectly. objective: because of the complexities of tum...
abstract previous research have shown that physical and mental illness and mortality are influenced by class status, material life standards, genetics and infection, but today social context attracted attention. in this paper social capital as a composition of social trust, support and relations seen as a mental health determinant. the aim of this paper is examining the relationship between soc...
The student’s Life-world, as the reference groups of community in the future, must be deeply explored and described in all its complexities, dimensions, elements and details. Therefore, the place of informal interactions of students as part of this Life-world is important in this study. The main purpose of the present study is that describe the students' mental perception of their informal inte...
charles dickens was a voracious reader even in his childhood. his early reading of seventeenth- and eighteenth-century picaresque fiction greatly influenced his writing style. his first novel, the pickwick papers, is a tale of rogues and swindlers, adventures and quests, satire and comedy, and innocence and experience. oliver twist, dickens’ second novel, is a young boy’s progress through a cor...
In this work, we give parallel transport frame of a curve and we introduce the relations between the frame and Frenet frame of the curve in 4-dimensional Euclidean space. The relation which is well known in Euclidean 3-space is generalized for the rst time in 4-dimensional Euclidean space. Then we obtain the condition for spherical curves using the parallel transport frame of them. The conditi...
The aim of this study was to determine the relationship between negative interactions of couple and family in law with intimacy and marital conflict. In this correlation study, 36 married women of Isfahan were selected in multi-stage random sampling and completed Marital Conflict Questionnaire, Intimacy Scale (IS) and Negative Interactions of Couple and Family in Law Researcher Made Questionnai...
in managing organizations as complex social systems that their core includes of human interactions or their complicated patterns of behavior, the precise definition of problem is very important; because interactions between organizations cause to emerging complex relationship networks which in it formal patterns are always affected by informal relationship networks. this paper analyses the form...
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