Distribution in an Extrusion Container, Found by the Sandwich Technique

Abstract

Commercial Perspex and “Perspex” of zero birefringence are applied in an investigation by the sandwich technique of the stress in a transverse section of a container from which lead is extruded through a die. The use of commercial Perspex in this application is shown to give rise to errors which are avoided by the new material of zero birefringence. The principal stresses in the birefringent layer of the sandwich are evaluated.

Reactivity Trends and Kinetic Inspection of Hydroxide Ion Attack and DNA Interaction on Some Pharmacologically Active Agents of Fe(II) Amino Acid Schiff Base Complexes at Different Temperatures

“…The solution then turns colorless, and some traces of green colloidal particles of Fe(OH) 2 turned pale yellow. Finally, the hydrolysis product was precipitated as brown Fe(OH) 3 by oxidation with O 2 dissolved in solution long after the end of the kinetic run. Sodium hydroxide (99.3%), sodium nitrate (99%), and oxalic acid (99.7%) were obtained from BDH (Atlanta, GA).…”

“…Schiff base complexes have extensive importance as radiotracers [1], biologically active reagents [2][3][4][5], catalysts for oxidation [6,7], epoxidation [8], polymerization [9], and decomposition reactions [10,11]. On the other hand, considerable attention has been paid over the past few decades in establishing substitution reactions, dissociation, hydroxide attack, and a reaction with cyanide of low-spin tris-ligand Fe(II) complexes.…”