Showing papers by "Korea University published in 1973"

Ion Exchange Behavior of Some Inorganic Ions in System of Ion Exchange Resins of Porous Type

Abstract: The distribution ratios of certain inorganicions were radiochemically determined in systems of ion exchange resin of porous type vs. 0.1–1.0 M hydrochloric acid or water. The resins used were the cation exchange resins Diaion PK-216 and Amberlite IR-200 (H form), and the anion exchange resins Diaion PA-316 and Amberlite IRA-900 (Cl form). The results concurred with those obtained with ion exchange resins of gel-type (Diaion SKN-1 and SAN-1). The ion exchange behavior of 137Cs was examined by means of an ion exchange resin column. The resin bed consisted of a 2:1 mixture of Diaion PK-216 and PA-316. The decontamination factors were determined at a flow rate of 120 and 180 (hr−1) in space velocity. The values were higher than those obtained with a mixture of ion exchange resin of gel-type (Diaion SKN-1 and SAN-1).

On construction of fractional replicates and on aliasing schemes

Abstract: : A generalized method of constructing irregular fractional replicates from a complete factorial is developed. An invariance property and an aliasing structure property of fractional replicate plans are presented. (Author)

Local Effects of a Concentrated Load Applied to Orthotropic Beams

Abstract: An analytical solution for the bending, shearing and normal stresses of infinitely long orthotropic beams subjected to a concentrated load is presented. Numerical values are obtained for three-layered plywood and pine wood.