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This paper is focused on finding out the key determinants of competitiveness in the textile sector, with special reference to Pakistan. Researcher has conducted a survey that is designed to use financial side, productivity side, supply side, and demand side determinants to measure firms’ level Competitiveness. Primary data was collected at five point Likert scale for 145 Listed Textile Companies at Karachi Stock Exchange (KSE). Collected data was then analyzed by using the SEM statistical tool to find out the key components of competitiveness and the rate of interdependency between the dependent and independent variables. The result shows that financial and demand side determinants having a greater positive impact on the competitiveness. Research also suggests that the improvements in financial as well as capital markets to keep the edge along with the more efforts to improve the productivity and supply side can improve the firm’s level competitiveness.

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This research deals with Low Cycle Fatigue (LCF) tests for three types of polymers, polyvinylchloride (PVC), polyoxymethy (POM), and polyamide (PA). The tensile test results showed that advantage cannot be taken from u y ratio and strain hardening coefficient (n) to estimate polymers behaviour under LCF test. There was a similarity in polymers behaviour with metals in the aspect of total strain, elastic strain and plastic strain curves with total cyclic number (2N). Fatigue strength exponent (b) and fatigue ductility exponent (c) for the polymers recorded values within metals limits. POM polymer showed less softening and greater transition life (NT). PA polymer exhibits sensitivity to external stress concentration in terms of reduction of transition life (NT). Softening behaviour of PA polymer increases with lower value of the notch radius.

The corrosion behavior of stainless steel (SS) type 304 in 1 M HCl and at different temperatures (25 oC - 55 oC) in presence of different concentrations of heterocyclic organic compounds was studied using chemical (weight loss) and electrochemical (potentiodynamic polarization and electrochemical impedance spectroscopy) techniques. The polarization curves reveal that these investigated compounds act as mixed type inhibitors. Adsorption of these inhibitors on SS surface was found to obey the Langmuir adsorption isotherm. Results show that the rate of corrosion of SS increased with increasing temperature over the range (25 oC - 55 oC) both in the presence and the inhibitors and in their absence and decreases with increasing inhibitor concentration. This indicates that these compounds were assumed to occur via physical adsorption on the steel surface. Activation energies in the presence and absence of these investigated compounds were obtained by measuring the temperature dependence of the corrosion current. The reactivity of these compounds was analyzed through theoretical calculations based on semiempirical theory to explain the different efficiency of these compounds as corrosion inhibitors.