نتایج جستجو برای: pull in phenomena
تعداد نتایج: 16987202 فیلتر نتایج به سال:
Poetic inquirers immerse themselves in the flow of life, listening for art ordinary world, offering a response through voice and written word. The biennial International Symposium on Inquiry, which draws poet-scholars from across disciplines showcases artful use poetry research as method inquiry. In this article, Fifth Inquiry is relived by two attendees who interrogate found poems they each cr...
We report a new method to probe the solid-liquid interface through the use of a thin liquid layer on a solid surface. An ambient pressure XPS (AP-XPS) endstation that is capable of detecting high kinetic energy photoelectrons (7 keV) at a pressure up to 110 Torr has been constructed and commissioned. Additionally, we have deployed a "dip &pull" method to create a stable nanometers-thick aqueous...
Electrostatic micro-electro-mechanical system (MEMS) is a special branch with a wide range of applications in sensing and actuating devices in MEMS. This paper provides a survey and analysis of the electrostatic force of importance in MEMS, its physical model, scaling effect, stability, nonlinearity and reliability in detail. It is necessary to understand the effects of electrostatic forces in ...
The present research attempts to explain dynamic pull-in instability of functionally graded micro-cantilevers actuated by step DC voltage while the fringing-field effect is taken into account in the vibrational equation of motion. By employing modern asymptotic approach namely Homotopy Perturbation Method with an auxiliary term, high-order frequency-amplitude relation is obtained, then the infl...
In an experimental newsvendor setting where 310 subjects make 50 repeated newsvendor decisions with the same known ex-ante parameters, we investigate three phenomena: Level behavior – the decision-maker’s average ordering tendency; adjustment behavior – the tendency to adjust period-to-period order quantities; and observation bias – the tendency to let the degree of demand feedback influence or...
In this article, a systematic and comprehensive approach based on finite element analysis analytical modeling for studying static pull-in phenomena in hybrid levitation microactuators is presented. A model of electromagnetic the Lagrangian formalism formulated developed as result recent progress calculation mutual inductance between filament loops. particular, allows us to calculate accurately ...
the effect of pressure changes during simulated diving on the pull out strength of glass fiber posts
background: scuba diving is one of the fastest growing sports in the world. the objective of this study was to evaluate the effect of pressure variations to which divers are exposed on the pull out strength of glass fiber post luted with different cements. materials and methods: in this in vitro study, 120 extracted, single-rooted lower premolars were endodontically treated. they were randomly ...
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