魚臭成分과 分析技術

朴斗天,車傭準 國立 昌原大學校 産業技術硏究所 1987 産技硏論文集 Vol.1 No.-

식품은 단백질, 지질 및 당 등의 영양성분이나 물, 색소, 엑기스 및 냄새성분 등의 비영양성분으로 구성되어 있으며 이들 비영양성분은 식품에 있어 불필요한 것이 아니고, 각 식품에 있어서 텍스츄어, 색조, 정미성분 및 향기등에 지배적인 영향을 준다. 특히 風味(맛과 냄새)는 식품의 중요한 요소이며 그 중에서 냄새는 맛에 비하여 식품의 구매욕을 결정적으로 지배한다. 일반적으로 냄새란 香, 臭, 芳, 馨, 馥, 郁, Perfume, Aroma, Flavor, Odor, Smell등의 용어로 표현되며 식품의 경우 후각을 통하여 느끼는 냄새는 Aroma, 입은 통하여 맛과 향을 느끼는 일체의 감각은 Flavor라는 용어를 쓰고 있다.1) 식품의 냄새에 관한 연구는 단백질, 지질 등의 일반성분의 연구에 비하여 훨씬 뒤져 있으며 연구의 역사도 짧다. 특히 魚臭성분에 관한 연구는 1960년대 후반부터 시작하여 그후 여러 가지 추출 및 분리방법의 개선이 진보되었으며 최근에는 분석기기의 발달로 인하여 급속적인 연구가 진행되고 있는 실정이다. 우리 나라에서는 옛부터 수산물을 단백질 공급원으로 이용해 왔으므로 비교적 생선냄새에 잘 익숙하여져 있지만 최근 청소년층과 도시인들은 식생활패턴의 변화로 인하여 생선을 기피하는 경향이 있는데 이는 어패류의 냄새 가운데 불쾌취(비린내)가 주 요인으로 되고 있다. 따라서 본고에서는 어취성분에 대한 연구문헌과 분석기술의 자료를 정리하여 어패류의 가공 및 이용에 있어 어취의 문제를 해결하는데 도움이 되고자 한다.

류마티열 환아의 활동성과 심전도, 각종 급성기반응 및 혈청단백 변화간의 관계

박기용,조용수,이두봉 대한소아과학회 1970 小兒科 Vol.13 No.5

全南地方의 水稻白葉枯病菌 菌型과 그의 地域別 및 品種別 分布

朴淳直,金基淸,禹洪斗,崔容壽 全南大學校 農漁村開發硏究所 1986 農業科學技術硏究 Vol.21 No.-

This was carried out to identify the pathotypes of Xanthomonas campestris pv. oryzae collected from regional exhibition paddys and others in Jeonnam province, and to investigate the sub-regional and varietal distributions of them in 1982. Collected isolates were identified as pathotypes Ⅰ, Ⅱ, Ⅲ and 2 unknown groups with Korean differentials; Ⅰ, Ⅱ, Ⅲ, Ⅳ,Ⅴ and 4 unknown with Japanese; Ⅰ, Ⅱ and 2 unknown with IPPI's, respectively. The fact that unknown groups were isolated suggest that some differentiation is occurring among the previous pathotypes. Using Japanese differentials, pathotype was isolated from l1 sub-regions, Ⅱ and gⅢfrom 4, g from I, g from 3, and unknown 4 groups from 8, respectively. However, there was no sub-region where all 5 pathotypes were detected. Pathotypes with Japanese differentials was isolated from 6 varieties, Iri 346 and 347, Milyang 23 and 30, Jinjubyo and Nakdongbyo: pathotype Ⅱ from 6 varieties, Suvreon 294, Irl 342 and 347, Jinjubyo and Akihikari; pathotype Ⅲ from 5 varieties, Suweon 294, Iri 346, Milyang 30 and Nongrim 41; pathotype Ⅳ from 1 variety, Jinjubyo; pathotype V from 4 varieties, Suweon 294, Iri 347, Milyang 23 and Jinjubyo, respectively.

균열을 가진 강구조부재의 한계하중에 대한 유한요소해석

박용걸,김성훈,김두환 서울産業大學校 1997 논문집 Vol.46 No.1

The purpose of the analysis is the numerical simulation of structures strained to the limit loads. The finite element calculations and experiments with cracked structures have been carried out yielding over limit strains between 10% and 15% by single peak load. Load versus displacement-diagrams and J-diagrams up to the limit load are calculated. By this way the influence of geometric parameters may be assessed in the post yield region. It is proposed to use such calculations to correlate experiments carried out with small specimens to experiments simulating the true dimensions of the design structure.

명태의 행동제어용 심전도 도출에 관한 연구

박용석,이창헌,이유철,서두옥 제주대학교 해양연구소 1997 해양자원연구소연구보고 Vol.21 No.-

In the walleye pollock. Theragra chalcogramma. which has a heart with a strong electromotive force, the ECGs were found to be recordable by electrodes placed in the water from fish's body. The day on the experiment, fish was operated on in order to install a leading-out bipolar electrode. This electrode was used for recording of the cardiosignal of the fish on a digital storage oscilloscope. The electrode was made from a fish book which was re-shaped according to the shaped of fish heart and body surface. This hook was then connected to the lead-code insulated with paint, and the connecting part was covered with paint. The pointed end was stripped off slightly for conduction of electricity and the another pointed edge was used for hooking the electrode into the chest cavity. QRS complex of the ECG was marked. The amplitude of QRS complex was about 0.1-lmV. This method enabled us to observe the heart beat rate of the walleye pollock under least disturbed state. Ordinary heart beat rate was not quite regular. Very slight stimulation was enough to bring about cardiac inhibition. which was also accompanied by a considerable reduction in the amplitude of the QRS. After rough treatment. such as sound stimulus or electric shock. the heart beat rate showed remarkable decrease. reaching a value a few times lower than the normal level.

제주도 연안 갈치 채낚기 어구의 생력화 : 1.연속식 채낚기어구의 모형 실험

서두옥,정용진,김석종,이창헌,김고환,박용석 제주대학교 해양연구소 2000 해양과환경연구소 연구논문집 Vol.24 No.-

The authors carried out a model experiment of continuoius hairtail hand line on the rooftop in order to obtain the fundamental data on elimination of labor with haritail hand line in the coast of Jeju. The results are as follow ; 1.The continuous main line was rotated smoothly by driving roller. 2.The branch lines and hooks on a main line which was rotated by rotary machine were entangled slightly. 3. The branch lines attached to rubbered model of hairtails to hooks were rotated continuously by the rotary machine.

공조시스템을 적용한 석실 고분내 온ㆍ습도 분포

전용두,이금배,박진양,고석보,전희호 公州大學校 工學硏究院 生産技術硏究所 2005 論文集 Vol.13 No.-

Although the importance of good conservation of historic sites including ancient royal tombs is well aware, still not much attention has been paid for the facilities and systems to preserve those historic sites, which includes precious artifacts as wall paints and carved works, etc. Even the general understanding about the environment of the underground space of tombs is not satisfactory. In Korea, researchers have recently begun addressing the above issue and are making efforts to develop suitable HVAC(heating, ventilating and air-conditioning) systems for conservation of tombs. An experimental investigation was carried out to study the behavior of the HVAC system installed for a tomb. This tomb resembles in size and shape the original stone built tomb of Baek-je Dynasty, which dates back to 6th Century in southwest part of Korean peninsula. In this study, an HVAC system for a tomb(D×W×H=1.3m×3.0m×1.2m) was installed to maintain sui표 indoor conditions for conservation of tomb. The temperature and humidity inside the tomb were measured different of the setting. Finally, performance of the HVAC system is presented and discussed.

제주도 연안 갈치 채낚기 어구의 생력화 : 1. 연속식 채낚기어구의 모형 실험

서두옥,정용진,김석종,이창헌,김고환,박용석 제주대학교 해양연구소 2000 해양자원연구소연구보고 Vol.24 No.-

The authors carried out a model experiment of continuous hairtail hand line on the rooftop in order to obtain the fundamental data on elimination of labor with hairtail hand line in the coast of Jeju The results are as follow : 1. The continuous main line was rotated smoothly by driving roller. 2. The branch lines and hooks on a main line which was rotated by rotary machine were entangled slightly. 3. The branch lines attached to rubbered model of hairtails to hooks were rotated continuously by the rotary machine.

배가스 폐열회수를 위한 히트파이프 적용성 검토

전용두,박기호,고석보 公州大學校 工學硏究院 生産技術硏究所 2005 論文集 Vol.13 No.-

A Series of experiments are performed to investigate the heat transfer characteristics of sintered metal wick heat pipe especially focusing on the operational limit of maximum allowable thermal loads and the effect of inclination slope. Tested heat pipes are composed of copper tube with pure water as a working fluid. The outer diameter of the heat pipe is 6mm and the total length is 300mm, which covers the evaporator section(50mm), adiabatic section(100mm) and condenser section(150mm). respectively. Experimental data of wall temperature distribution along the axial locations are obtained to evaluate the performance of the heat pipe at different slopes. Each test is performed by changing the input thermal loads ranging from 5W to 30W.

이차 전기영동을 이용한 프로테오믹 접근을 통한 정맥 압박이 혈장 프로테옴에 미치는 영향

양광익,박선아,오형근,정두신,박형국,성기범,안무영,홍세용 순천향대학교 2006 Journal of Soonchunhyang Medical Science Vol.12 No.1

The human proteomics-based approaches, which examine the expressed proteins of a tissue or cell type, are increasingly being used. Venous occlusion is commonly employed for stimulating tissue-plasminogen activator (t-PA) and plasminogen activator inhibitor-1 (PAI-l) release from venous endothelial cells, and this has been regarded as a parameter of the individual fibrinolytic capacity of plasma. The present work involved a detailed investigation of the plasma proteome and fibrinolytic activity in normal subjects, with the aim of determining whether correlations exist between various parameters of the fibhnolytic system before and after venous occlusion. We analyzed fibhnolytic parameters and plasma proteome before and after 15-min periods of venous occlusion in the forearm in 10 healthy 3rd-decade volunteers. Proteome analysis was performed using two-dimensional gels. The tryptic digests of some proteins were confirmed by MALDI-TOF and the MS-Fit algorithm. The fibrinolytic response as measured by the absolute amount of t-PA after venous occlusion was increased by venous occlusion (5.5 vs 9.6 ng/㎗, p<0.05), as was PAI-l (46.8 vs 56.1 ng/㎗, p<0.05). However, two-dimensional electrophoresis finding was virtually nonspecific and inconsistent after venous occlusion in healthy male subjects. Venous occlusion does not influence plasma proteome in healthy males. Although the fibhnolytic response to venous occlusion is attributed to an increase in free tUPA antigen, this change is not correlated with plasma proteome.