the essential oil of rosa damascena mill. is one of the most valuable and important base material in the flavor and fragrance industry. it has also some medicinal properties. the aim of this study was to determine the correlation between anthocyanin and essential oil content of damask rose petals in 6 important damask rose growing in some locations of iran i.e. meimand, layzangan, shiraz eram b...

The relationship of the structure with strength, deformation, thermophysical and tribological characteristics linear block-copolyurethanes based on oligoeters regular oligooxy tetra-methylene glycol is described by mathematical model. Quality parameters are used to estimate between properties studied materials. quality allowed find optimal composition initial components.

Finite element analysis (FEA) is a numerical procedure utilised in the engineering of structures and one most common methods many research activities dentistry such as implantology, prosthodontics restoration. FEA can be considered useful tool order to describe deformation aspects dental components that cannot measured easily by vivo models. The geometry, material properties, finite model (mesh...

An overview of the synthesis, physical properties, and use as material for organic light-emitting diodes (OLEDs) of linear organic π-conjugated systems incorporating phosphole and thiophene rings is presented.

Poly(glycolic acid) (PGA) fibers are a good candidate material for nerve cell scaffolds, which is applicable to the treatment of peripheral nerve injuries. Polylysine is widely used as a coating material for cell substrates to promote nerve cell adhesion. In this study, linear and dendrigraft polylysines were used to coat PGA fibers. The association of large dendrigraft polylysines with PGA fib...

introduction: nowadays new radiochromic films have an essential role in radiotherapy dosimetry. properties such as high sensitivity, good reproducibility, high spatial resolution, easy readout and portability have made them attractive for dosimetry, especially in high-dose-gradient regions. material and methods: in this study, electron-beam dose distributions in homogenous and heterogeneous pha...

In this study buckling analysis of solid rectangular plate made of porous material bounded with the layers of piezoelectric actuators in undrained condition is investigated. Porous material properties vary through the thickness of plate with a specific function. Distributing of the pores through the plate thickness is assumed to be the nonlinear nonsymmetric distribution. The ...

Lokesh Singh1 1GD rungta college of Engineering & Technology, India [email protected] ABSTRACT A heterogeneous object is referred to a solid object made of different constituent materials. The object is made up of finite collection of regions having set of prescribed material classes of continuously or discontinuously varying material properties. These properties have an abrupt or gradual ch...