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전분질 원료를 달리하여 제조한 고추장의 Alcohol과 Ester류의 성분
이택수,박성오,고경 서울여자대학교 자연과학연구소 1997 자연과학연구논문집 Vol.9 No.-
찹쌀, 보리쌀, 밀가루, 고구마로 제조한 3개월 숙성 고추장의 alcohol과 ester류를 GC로 분석 동정한 결과는 다음과 같다. 시험 고추장에서 12종의 alcohol과 16종의 ester이 동정되었으며 면적 비을은 alcohol류 0.31~l.75%, ester류 33.06~97.16%였다. Alcohol은 밀가루, ester은 고구마 고추장에서 면적 비율이 높았고 보리쌀 고추장은 이들 성분이 가장 낮았다. 밀가루와 고구마 고추장은 12종의 alcohol이 검출되었으나 보리쌀 고추장은 5종으로 적었다. n-propylalcohol, active amyl alcohol, n-cotyl alcohol, β-phenylethyl alcohol은 모든 고추장에서 동정된 공통이 성분이다. Active amyl alcohol과 n-propylalcohol은 보리쌀 고추장을 제외한 시험 고추장에서 면적 비을이 높은 alcohol에 속하였다. Ester은 밀가루와 고구마 고추장에서 16종이었으나 찹쌀 고추장은 12종으로 적었다. n-butyl acetate, ethyl caprate, ethyl caprylate, ethyl levulinate, ethyl benzoate를 제외한 11종의 ester은 시험 고추장의 공통 성분이었다. Ethyl linoleate는 면적 비을이 19.08~55.06%로 alcohol과 ester중 가장 높은 주성분이었다. Ester중 ethyl oleate, ethyl palmiate, ethyl linolenate, ethyl myristate, ethyl laurate도 면적 비을이 높아 고추장의 주ester성분으로 나타났다. 이들 성분 중 ethyl linoleate는 밀가루, ethyl linolenate는 고구마, ethyl oleate와 ethyl palmitate는 찹쌀 고추장에서 면적 비율이 높았다. Kochujangs were made from a glutinuous rice, barley, flour and sweet potato as a starch source and fermented for three months. Alcohol and ester components of kochujangs were identified with GC. Twelve alcohols and sixteen esters were found in kochujangs. As a peak area 0.31-1.75% of alcohols and 33.06-97.16% of esters in volatile components were found. Alcohols were high as a peak area in kochujang made of flour while esters were high in kochujang made of sweet potato. Only five kinds of alcohols were found in kochujang made of barley. n-Propyl alcohol, active amyl alcohol , n-octyl alcohol and β-phenyl alcohol were found in all treatment. There were high peak area of active amyl alcohol and n-propyl alcohol except kochujang made of barley. Ethyl linoleate(19.08-55.06%), ethyl oleate, ethyl palimitate, ethyl linolenate, ethyl myristate, and ethyl laurate were major components in esters. There were high peak area of ethyl linoleate in kochujang made of flour, ethyl linolenate in kochujang made of sweet potato, and ethyl oleate and ethyl palmitate in kochujang made of glutinuous rice.
Robot Application for Assembly Process of Engine Part
Kyoung-Taik Park,Young-Jae Shin,Chan-Hun Park,Yong-Sun Mo,Dong-Chul Jeong,Yoon Seong Shin 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
Industrial robot is used to accomplish the repeated simple job efficiently and the improvement of its productivity is already proven in long time ago. But so far the industrial robot has the limitation of its application in industrial site. And in this study the technology of robot application is shown to expand the scope of robot application. Even though human being could easily accomplish the complex assembly jobs by using the arm with dexterous gripper, there are several problems in the case of robot application to those jobs. Because of these reasons, in this study the function of visual servo and the cooperation control of dexterous hands are realized to accomplish the given assembly jobs.
Wearable Robotic System Using Hydraulic Actuator
Kyoung-Taik Park,Han Me Kim 제어로봇시스템학회 2011 제어로봇시스템학회 국제학술대회 논문집 Vol.2011 No.10
This study presents wearable robotic assistant system of working suit type for worker in field site of construction and ship-building. The worker carrying heavy tools such as hammer, grinder and engine saw should work in closed working space or on top of high wall in large and high structure. The robotic power assistant system is realized by developing mechanism and control technology to reduce the working load to be transferred to human body of worker. It is developed to realize optimal working motion in human friendly. This study shows the hydraulic driving system and link mechanism of wearable structure to be operated in a variety of motion. It shows the control technology of robotic wearable system to reduce the effect of reaction force of handling tool.
Handling Gripper Using Multi Links Mechanism
Kyoung Taik Park,Han Me Kim,Doo Hyung Kim 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
This paper presents the device and method to drive handling gripper using multi links mechanism in stepwise. The driving mechanism is related with the driving control bar to be moved. Stepwise driving parts to have driving power are arranged on moving path of driving control bar and driven by releasing the constraint as the driving control bar is approached closely. If the approach of driving control bar is released it contains the driven part to be constraint. It has the characteristics that the several driven parts are driven in serial according to approaching of control bar. There is the step to relate the multi axes link device to be driven in serial and the driving part to be idle state on established path with the driving control bar. There is the step to check approaching of driving control bar to several driven parts on moving path of driving control bar. There is the step to drive the driven part after releasing the constraint of the driven parts when the driving control bar approaches to one of several driven parts. The stepwise driving method of multi links has the characteristics to contain the step to constraint the driven part when the driving control bar is released.