2014 A model is presented for the elasticity of networks composed of rigid chains. The elastic modulus as a function of polymer volume fraction is determined for two cases : (a) the chains are rigidly crosslinked to each other i.e. the network may only deform by bending the chains (energetic network) and, (b) the chains are allowed to rotate freely about the crosslink points so that there is en...

Now a day’s multiplication and modulus takes crucial role so we are combining multiplication and modulus. A Novel multi-modulus multiplier with different widths of modulus operations. In this paper we have radix4 multi-modulus multiplier with 4bit, 32bit, 64bit and radix8 multi-modulus multiplier with 4bit, 32bit, 64bit.radix4 and radix8 multi-modulus multiplier using Residue multiplication is ...

background: common carotid arterial stiffness can be assessed during carotid arterial ultrasonography, but its association with brachial stiffness, a well-defined cardiovascular risk factor, has not been clarified. the aim of this study was to examine the relationship between common carotid artery and brachial artery stiffness. methods: the static pressure-strain elastic modulus of the common c...

Viscoelastic materials have a relationship between stress and strain which depends on time or frequency. Anelastic solids represent a subset of viscoelastic materials: they have a unique equilibrium configuration and ultimately recover fully after removal of a transient load. Internal friction refers to the dissipative response of a material when subjected to a sinusoidal deformation. All mater...

This paper presents a new theory of droplet formation during condensation of water on a hydrophilic surface. The theory uses hydration, electrostatic, van der Waals, and elastic strain interactions between a hydrophilic solid surface and a water film, and shows that contributions to the disjoining pressure are dominated by hydration forces for films thinner than 3 nm. The equilibrium film thick...

a new three-dimensional unit cell model has been developed for modeling three constituent phases including inclusion, interphase and matrix. the total elastic modulus of nano-composite is evaluated.  numerical results are in good agreement with the previous proposed theoretical modeling. higher matrix and inclusion elastic modulus both can dramatically influence the total elastic modulus.

The present article presents the study of three laterites from Triãngulo Mineiro and Alto Paranaíba region, aiming to use it as a pavement base. methodology used consisted carrying out tests prescribed by DNIT 098/2007 standard and, complementary methodology, linear contraction, MCT classification, modulus resilience X-ray diffractometry were introduced. Four mixtures laterite with sand prepare...

Dynamic modulus is a key evaluation index of the high-modulus asphalt mixture, but it relatively difficult to test and collect its data. The purpose achieve accurate prediction dynamic mixture further optimize design process mixture. Five high-temperature performance indexes were selected. correlation between above five was analyzed. On this basis, models based on small sample data established ...

in this research, the influence of adding micro- and nano- sized calcium carbonate powders to nylon-66 was investigated. mechanical properties of micro and nano- composites, including tensile strength, elongation, and young’s modulus, before and after ageing, were determined and analyzed. for this purpose, micro- and nano-sized caco3 particles were used as fillers to prepare micro-composites (c...