Study on Manufacturing Technology of Coating Yarns for Awning Fabrics

a study on thermodynamic models for simulation of 1,3 butadiene purification columns

attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...

Nonlinear Maxwell modelling of inverse relaxation in yarns and fabrics

An attempt has been made to fit the derived equation on the experimental inverse relaxation curves by employing Levenberg-Marquardt’s method for nonlinear regression and calculation of the constant values involved in the equation. The relaxation curves can be classified into ordinary relaxation, mixed relaxation and inverse relaxation curves. There seems to be good concurrence between the exper...

a study on construction of iranian life tables: the case study of modified brass logit system

چکیده ندارد.

On the Pressure Behavior of Tubular Weft Knitted Fabrics Constructed from Textured Polyester Yarns

This study attempts to investigate the pressure behavior of tubular knitted fabrics after a long period of time. For this purpose, two kinds of knitted fabric (plain and interlock) with various stitch lengths were chosen and the interfacial pressure and pressure reduction of fabrics after 48 hours were analyzed at different strain percents. The same tests were performed on the same specimens af...

Investigation of Acoustic Properties of Satin 7/1 Woven Fabrics Containing Hollow and Micro-porous Yarns