in the current paper, finite element method is employed for numerical simulations and the study of influential parameters on elastic modulus of polymer-matrix nano-composites. effects of different key parameters including particle elastic modulus, interphase elastic modulus, matrix elastic modulus, interphase thickness and particle volume fraction on total elastic modulus of nano-composite mate...

To analyze the problem of vibration and bifurcation in rotor system aeroengine with elastic ring squeeze film damper (ERSFD) supports, theoretical equation dynamic is developed this paper, based on system, (ERSFD), three supports. The estimated analytical solution oil force solved using short bearing approximation theory semi-oil inference suspension inner outer boss contact. Considering stiffn...

The vector optical solitons composed of bright and dark pulses are analyzed. It is shown that in the smallamplitude limit a bound state of these solitons is described by the generalized Zakharov system, which supports coupled soliton solutions, and under special conditions it reduces to an integrable model. In the limit in which the integrable model approximation is valid, numerical simulations...

We present measurements of the low-temperature thermal conductivity of a number of polymeric and composite materials from 0.3 to 4 K. The materials measured are Vespel SP-1, Vespel SP-22, unfilled PEEK, 30% carbon fiber-filled PEEK, 30% glass-filled PEEK, carbon fiber Graphlite composite rod, Torlon 4301, G-10/FR-4 fiberglass, pultruded fiberglass composite, Macor ceramic, and graphite rod. The...

reservoir characterization plays an important role in different parts of an industrial project. the results from a reservoir characterization study give insight into rock and fluid properties which can optimize the choice of drilling locations and reduce risk and uncertainty. delineating hydrocarbon bearing zones within a reservoir is the main objective of any seismic reservoir characterization...

We have de ned an execution architecture for playing back synchronized multimedia documents. We suppose that such documents are speci ed by means of several abstractions including hypertime links, time bases, and dynamic layout. Our architecture is based on three concepts: synchronization events, synchronization managers, and synchronizable media objects. It supports the notion of elastic time ...

We present Celias, a new concurrent programming model for data-intensive scalable computing. Celias supports many virtues commonly found in existing distributed programming frameworks, such as elastic scaling and fault tolerance, without sacrificing expressiveness. The key design idea of Celias is the concept of a microtask, as a scalable, fault-tolerant, and completely data-driven unit of comp...