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홍석일,표상연 한국디자인문화학회 2001 한국디자인문화학회지 Vol.7 No.1
In 21st century as a digital era, visual communication design become more important than any other period. Recently, we have been shifting from the industrial era into the information age. new communication systems have changed our concept of reality. Korean magazines net efficient for communicating. It is not orderly, organised and simple, it has currently become complicated and decorative. In this study, experimental modern art director works by Alexey Brodovitch who is one of the most representative editorial designers of the 1900s are analyzed in detail, and problems and prospects of this Korean magazines.
이옥기,표상연,김홍성,김판돌,이홍원 한국의류학회 1994 한국의류학회지 Vol.18 No.1
The objective of this study was to analyze the effect of the dissolution of detergent on washing and rinsing efficiency, and the possibility of saving detergent in washing. Washing and rinsing efficiency were reviewed in three different ways A method was to input dissolved detergent by the use of rapid detergent dissolution instrument, B method was to input dissolved detergent beforehand, and C method was to input undissolved detergent. The results were as follows 1. A method > B method > C method was shown in detergency with washing time and three method's gaps were reduced because detergent dissolution effect was reduced by mechanical action in proportion of washing time. Especially, according to detergency of A method of 0.07% and C method of 0.1% was appeared approximately, saving detergent was expected by rapid dissolution of detergent. 2. A method > B method > C method was shown in detergency with washing temperature. As the washing temperature rose, the detergent reached chemically more activated state and become easily soluble. It resulted for the detergent to penetrate and adhere to laundry easily. 3. A method > B method > C method was shown in detergency with detergent concentration and C method was more sensitive than A, B method against change of detergent cocentration. Rapid detergent dissolution made it possible not only to enhance the washing efficiency but also to save the detergent because detergency of A method in low concentration is higher than that of C method. 4. A method >= B method > C method was shown in rinsing ratio with detergent input method. It indicated input dissolved detergent was advantageous in rinsing. 5. The result of anion surfactant concentration test of each process with detergent input method was shown like that A method >= B method > C method in washing and reverse result was shown in rinsing. The anion surfactant concentration of C method was low during washing but high during rinsing. This was identical with previous results which shown the washing and rinsing efficiency improved with dissolved detergent usasge. 6. C method > B method > A method was shown in the degree of remaining detergent after rinsing. There was no remaining detergent after second rinsing in A and B method, but in C method four rinsings were required for the same result. Consequently, in A and B methods, less water and electricity were used, and less abrasion of cloth.
P-505 : Drying Characteristics of Cotton Fabrics in the Fixed Bed Dryer
이규선,김동원,김형균,표상연,양병렬,이동현 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.2
고정층 건조기에서 층 내 건조물의 시간에 따른 함수율, 배출공기의 온도 및 절대습도를 예측할 수 있는 수학적 모델을 제시하였다. 제시된 수학적 모델을 검증하기 위하여 피 건조물은 cotton fabrics로 하고, 열매체로 열풍을 이용한 건조실험을 수행하였다. 본 연구에 사용된 건조기는 직경이 0.15 m, 높이는 0.9 m인 stainless steel로 제작되었다. 건조기 입출구에서 기체의 온도 및 습도를 측정하여 on-line상으로 컴퓨터와 연결하여 시간에 따른 건조곡선을 얻었으며, 건조 전후 cotton fabrics의 무게를 측정하였다. 시간에 따른 온도 및 습도변화를 측정함으로써 건조기 입출구 기체의 절대습도 및 엔탈피를 계산하고, cotton fabrics의 함수율 및 건조율 변화 곡선을 얻을 수 있었다. 건조기체의 온도를 60℃에서 120℃까지 변화시켰으며, 기체유량은 5.8㎥/hr에서 12.2㎥/hr로 변화시키며 실험하였다. 건조기체의 온도를 100℃, 유량을 7.9㎥/hr로 하여 4시간 동안 건조실험 한 결과 초기무게 393.3g(건조기준 함수율:100%)인 섬유의 건조후 무게는 197.1g(건조기준 함수율:0.23%)으로 감소하였다. 또한 습윤 섬유가 채워진 고정층높이는 0.15 m이고 고정층 높이의 축방향에 따른 온도를 측정한 결과 기체분배기 위는 가장 빠른 시간에 정상상태에 도달하였으며 축방향으로 가장 높은 곳의 온도는 3시간 10분후에 정상상태에 도달함을 확인하였다.