سبد خرید

نمایش یک نتیجه

An energy efficient approach to extend network life time of wireless sensor networks

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تومان
The energy consumption in wireless sensor networks is a significant matter and there are many ways to  conserve energy. The use of mobile sensors is of great relevance to minimize the total energy dissipation in  communication and overhead control packets....

An experimental and numerical study on heat transfer enhancement for gas heat exchangers fitted with porous media

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The present experimental and numerical work investigates the effect of metallic porous materials, inserted in a pipe, on the rate of heat transfer. The pipe is subjected to a constant and uniform heat flux. The effects of  porosity, porous material...

Fabrication of Nanostructured Electroforming Copper Layer by Means of an Ultrasonic-assisted Mechanical Treatment

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Electroformed copper layer with nanostructure is obtained using a subsequent mechanical treatment under  the conditions of ultrasonic vibration according to the demand of high performance material in aeronautics. The microstructure of the electroformed copper layer is observed by optical microscope...

Innovative coupled fluid–structure interaction model for carbon nano-tubes conveying fluid by considering the size effects of nano-flow and nano-structure

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In this article, we reappraise the well-known equation of motion for a pipe conveying viscous fluid. We utilize  prominent principles of fluid mechanics such as Navier–Stokes’ equation as well as several benchmark  references in the field of fluid–structure interaction (FSI)...

Mechanical properties of foamed concrete exposed to high temperatures

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This paper reports the results of an experimental and analytical study to investigate the mechanical  properties of unstressed foamed concrete exposed to high temperatures. Two densities of foamed concrete, 650 and 1000 kg/m3, were made and tested with additional tests...

Nonlinear Viscoelastic Analysis of Thick Walled Cylindrical Composite Pipes

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تومان
This paper analyzes the effect of the polymer matrix non-viscoelastic behaviour in the mechanical behaviour of thick multilayered cylinders. The original contribution of this work is to provide novel approximate analytical solutions to compute the timedependent internal stress state throughout...

Recent advances in corrosion protective composite coatings based on conducting polymers and natural resource derived polymers

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تومان
Conducting polymer (CP) coatings have been extensively investigated for corrosion protection of iron, steel and other metals owing to their superior performance in highly aggressive environments and ecofriendly  characteristics. Corrosion protective coatings based on CP nanocomposites have opened a new...

The Effect of Addition of Carbon Fibers on Mechanical Properties of High Strength Concrete

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High Strength Concrete (HSC)is dense, homogeneous and has the improved engineering properties and durability as conventional concrete. In recent years, HSC has gained wide application in the construction  industry. High strength Concrete is a concrete having similar ingredients as conventional...

Thermodynamic modeling of fcc order/disorder transformations in the Co–Pt system

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The present work reports on a thermodynamic modeling of the Co–Pt system with ordered fcc phases of L10 and L12 structures by means of the CALPHAD method. The liquid, hcp and fcc phases have been modeled as substitutional solutions where...
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