HWAHAK KONGHAK HWAHAK KONGHAK, Vol.9, No.3, October, 1971 Entire volume, number list ISSN: 0304-128X (Print) In this Issue (5 articles) 113 - 120 유동층내의 Bulk Flow Rate Index와 열 전달계수에 관한 연구Study on the Bulk Flow Rate Index and Heat Transfer in a Fluidized Bed최청송, 도동섭, 강웅기 121 - 132 Ester-Alcohol계의 기액평형(II)Vapor-Liquid Equilibria of Ester-Alcohol Systems (II)박원규 133 - 136 Polyphenyleneisoxazole의 물리적 특성Physical Characteristics of Polyphenyleneisoxazole홍석주 137 - 148 연탄연소 가스의 성분 및 처리연구Study on the Flue (briquet) Gas Components and Treatment of the Gases임진남 149 - 158 Microstrainer 설계를 위한 개량여과 이론Modified Filtration Theory for Microstrainer Design김병조, Qasim SR, Verma RD