نتایج جستجو برای: four degrees freedom
تعداد نتایج: 770894 فیلتر نتایج به سال:
Two quasi–biHamiltonian systems with three and four degrees of freedom are presented. These systems are shown to be separable in terms of Nijenhuis coordinates. Moreover the most general Pfaffian quasi-biHamiltonian system with an arbitrary number of degrees of freedom is constructed (in terms of Nijenhuis coordinates) and its separability is proved.
A simple formulation of membrane finite elements with drilling degrees of freedom is presented. Elements based on this theory have been proved to converge and this is confirmed by numerical calculations. The incompatible modes approach is incorporated in the formulation to develop extremely accurate four-node elements with drilling degrees of freedom.
OBJECTIVE : The feasibility of endovascular resection of highly calcified aortic valves has already been demonstrated by our group. Different endovascular and intracardiac tractability methods were applied. In this study, these technologies were analyzed comparing the tractability, the resection time, and the lesions in the surrounding tissue. METHODS : All aortic valve resections (seven huma...
The subject of structural health monitoring and damage identification of structures at the earliest possible stage has been a noteworthy topic for researchers in the last years. Modal strain energy (MSE) based index is one of the efficient methods which are commonly used for detecting damage in structures. It is also more effective and economical to employ some methods for reducing the degrees ...
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