The objective of this paper is to control the phase shifting by applying a bias DC voltage and changing the mechanical characteristics in electrostatically-actuated micro-beams. This problem can be more useful in the design of micro-phase shifters, which has not generally been investigated their mechanical behavior. By presenting a mathematical modeling, Galerkin-based step by step linearizatio...

This work deals with the problem of controlling the nonlinear dynamics, in general, and the dynamic pull-in, in particular, of an electrically actuated microbeam. A single-well softening model recently proposed by Gottlieb and Champneys [1] is considered, and a control method previously proposed by the authors is applied. Homoclinic bifurcation, which triggers the safe basin erosion eventually ...

In this paper, a new technique for domino circuit is proposed, which has high noise immunity and consume low power without degrading the performance for wide fan-in dynamic gates. The proposed circuit utilizes the double stage domino technique, in which the domino circuit is divided into two stages: standard footed domino includes pull-down network and another standard footed domino includes on...

This paper describes the pilot of a Short Messaging Service (SMS) technology in the higher education environment dynamic two-way ‘push-pull’ transfer of information between students and academics. Assessment results and reminders were pushed to students and access was provided to information relating to their subject schedules and assessment performance. Both qualitative and quantitative data w...

To shed light on the role of suction in adhesion of microstructure with mushroom-shaped terminal elements, we compared pull-off forces measured at different retraction velocities on structured and smooth surfaces under different pressure conditions. The results obtained allow us to suggest that suction may contribute up to 10 per cent of the pull-off force measured on the structured surfaces at...

Wireless devices are being increasingly used to access data on the web. Since intermittent connectivity and client mobility are inherent to such environments, in this paper, we examine the impact of these factors on coherent dissemination of dynamic web data to wireless devices. We introduce the notion of eventual-delta consistency, and in the context of push and pull-based dissemination propos...

In recent years power saving is one of the important thing. Domino logic circuit is power efficient cicuit,so it is widely used in variety of applications in digital design. But it has a limitation of low noise immunity and more leakage current. This problem can be solved by using keeper transistor to compensate leakage current of pull down network. The conventional keeper domino circuit reduce...

Numerical analysis software based on linear finnite element method and statistical damage theory concrete material has been adopted in this study. Dynamic numerical model of twin fibers pullout test matrix have created by considering the meso-heterogeneity material. The whole process from micro-cracks initiation, propagation to crack penetration simulated. influence stress wave loading peak rat...

there are many techniques for reconstruction after total pharyngolaryngoesophagectomy. the use of a transposed stomach to restore gastrointestinal continuity, and this combined cervical and abdominal approach for pharyngolaryngoesophagectomy and gastric pull up has become one of the most popular. this retrospective study is a review of 50 consecutive iranian patients who underwent pharyngolaryn...