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唾線細胞生長에 따른 細胞質, 染色體 및 Mitochondria의 相關性에 關하여 : 第 一 報 (基礎調査)
孔泰勳,李海浜 동국대학교 농림과학연구소 1967 農林科學 論文集 Vol.1 No.-
This study was to investigate the correlations between cytoplasm volume, nucleus volume and mitochondria numbers, in the larva period of Chironomus dosalis M.. The results were as follows; 1. Cytoplasm volume, nucleus volume and mitochondria numbers of each cell showed their parallel increasing in the larva period and in 6 or 7 days before pupation, cytoplasm volume increased more rapidly. 2. After hatching, during its growth to pupation, increasing of the nucleus volume parallel with cytoplasm volume 3. In 7 days before pupation, cytoplasm volume shoed a great increasing grade but distribution number of mitochondria also increased continuously. 4. There was no way to find any correlations between cytoplasm volume and mitochondria numbers, mitochondria numbers and chromosome volume. However, they were believed to preserve their increasing to keep physiological balnace.
용서훈련 집단상담이 비행청소년의 분노수준과 학교적응에 미치는 효과
황혜자,김태훈 東亞大學校 2005 東亞論叢 Vol.42 No.-
The Effects of study was to examine the effects of group counselling applied to forgiveness training on Juvenile Delinquents' anger level and school life adjustment. To accomplish the purpose of this study, the hypothesis of this study were established as follows : 1. Forgiveness training group counselling will have more positive effect on decreasing the anger level of juvenile delinquents in the experimental group than those in non-treatment controlled group. 2. Forgiveness training group counselling will have more positive effect on increasing school life adjustment of juvenile delinquents in the experimental group than those in non-treatment controlled group. The subjects of this study were 22 students attending S high school in Ulsan metropolitan city. Those students who participated the forgiveness training group counselling were assigned to either experimental or control group. The subjects of the experimental group who consisted of 11 students received forgiveness training group counselling 10 sessions for two months, while the control group who consisted of 11 students received non-treatment for the same months. The measurement instruments used to collect data in this study were Novaco Anger Scale, The State-Trait Anger Expression Inventory of Spielberger (1988) and The School Life Test of Weissman and Bothwellnger. Data Analysis was using Spss Window and Wilcoxon sign rank test to find the differences between pre-test and post-tes. It was administered two times, before, after the program input, and It was analyzed by Mann-Whiteney test,Wilcoxon sined Rank Test and t-verification. The conclusion of this study were as follow : 1. The forgiveness training group counselling was effective in decreasing the levels of anger in the cognitive area, awakening area and anger behavioral area 2. The forgiveness training group counselling was effective in decreasing the levels of state anger and anger exposure except trait anger as well as in increasing anger repression and anger control. 3. The forgiveness training group counselling was effective in increasing school adjustment ability in terms of teacher relationship. friendship relationship and school task except the observation of school life and the participation of school activity.
신혜숙,이세훈 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.2
To evaluate the subjective symptoms among nurses handling anticancer drugs, we investigated symptom prevalence in 487 nurses exposed to anticancer drugs and 242 control nurses, who are working at 14 university hospitals in Korea by self-administered questionnaire. Safety regulations for handling anticancer drugs in these hospitals as well as the level of knowledge on safety rules of them among nurses were also evaluated. The results were as follows: 1. Only 1.5% of nurses used the biological safety cabinet always, 32.7% could not use it during evening time and on holidays, and 65.8% could not use at all since lack of it. When nurses prepared anticancer drugs, they were gloves(49.7%), gown(7.2%), goggle(1.6%), and mask(11.5%). And 46.1% of them answered that they ate and drank in the anticancer drugs preparation room. 2. The level of knowledge on safety rules of anticancer drugs were generally low in both exposed(12.7/17 items) and control(12.7/17 items) group. The questions which nurses answered wrong exceeded fifty percent were : the possibility of exposing to anticancer drugs when they correct their make-ups; and when they handled body fluids of cancer patients. Only 20.3% of the nurses were acknowledged with the hours for the cancer patients' body fluids being considered to be contaminated after receiving chemotherapy. 3. The prevalence of allergic disease was higher in exposed group than in control group. Among 43 symptoms of total, the prevalence of 10 symptoms (nausea, skin rash, itching, chronic throat irritation, tachycardia, alopecia, skin hyper pigmentation, loss of libido, leukopenia, thrombocytopenia) were higher in exposed group than in control group. 4. The prevalence of ten symptoms which showed higher prevalence in exposed group was significantly correlated with eating and drinking in the preparation room for anticancer drugs, the degree of skin contact with anticancer drugs, and the amount of anticancer handling them, and BMI. It was shown that eating and drinking in anticancer drug preparation room, and the amount of handling them, significantly affected the prevalence of 10 symptoms among nurses exposed after stepwise multiple regression analysis. The results of this study suggest that nurses handling anticancer drugs have potential risk of exposure to anticancer drugs, and the preventive measures for the protection of nurses' health be needed by education, and improvement of their working environment.
정보시스템 평가지표 개발에 관한 실증적 연구 : 공공부문을 중심으로 In Case of Public Sectors
정해용,김상훈 한국경영과학회 2003 한국경영과학회지 Vol.28 No.4
In this research, the comprehensive evaluation model of IS(information systems) for public sectors is theoretically constructed through reviewing and integrating previous IS evaluation-related research. This model is hypothesized to consist of five sectors(System Sector, User Sector, Organization and Management Sector, Resource Management Sector and Strategic Contribution Sector), ten evaluation items belonging to these five evaluation sectors, and sixty two evaluation indices for these ten evaluation items. The results of empirical analyses to test the validity of the research model show that the evaluation sectors turn out to be the same ones as proposed in the hypothetical model. The evaluation items(System Quality, Information Quality, Service Quality) in System Sector proves to be consistent with the hypothetical model. However, in case of User Sector, two evaluation items(Perceived Usefulness and User satisfaction) which are included in the hypothetical model are found to be merged into one item(User Satisfaction). And, it is shown that four evaluation items such as the Efficiency of Internal Process, Customer Satisfaction, Organizational Innovation, and the Degree of Informatization competence improvement are included in Organization and Management Sector, differently from the research model in which the items, Organizational Innovation and the Degree of Informatization competence improvement, are not divided. As a final result, sixty two evaluation indices that comprise all the evaluation items belonging to five sectors are found to be reduced to fifty seven ones through factor analyses, criterion-related validity tests and reliability analyses.
김훈섭,임해진,엄진섭 江原大學校 産業技術硏究所 2008 産業技術硏究 Vol.28 No.A
In this paper, the swept source optical coherence tomography system has realized using a free-space interferometer based on a beam splitter, Personal computer has completed the control for tunable wavelength laser digitally and the B-scan motor as well. From each experiment for an onion and a salmon egg, we confirmed that the in vivo epidermal cross-sectional images for tliem can be obtained appropriately.
접종능이 우수하고 페이딩 속도가 느린 구상 흑연 주철용 접종제 개발
권해욱,안종헌,최훈영 嶺南大學校 工業技術硏究所 2003 工業技術硏究所論文集 Vol.31 No.1
The performance of inoculant for ductile cast iron was investigated. The ability and fading rate of inoculant were evaluated through thermal analysis during holding the cast iron melt after the nodularizer and inoculant had been added. The effect of the addition of minor elements was also examined.
조해용,정석영,김명한,조창용,이제훈,서정 한국레이저가공학회 2001 한국레이저가공학회지 Vol.4 No.1
Simulation on the electron beam welding of Al 2219 alloy was carried out by using commercial FEM code MARC, which encounters moving heat sources. Due to axisymmetry of geometry, a half of the cylinder was simulated. A coupled thermo-mechanical analysis was carried out and subroutine for heat flux was substituted in the program. The material properties such as specific heat, heat transfer coefficient and thermal expansion coefficient were given as a function of temperature and the latent heat associated with a given temperature range is considered. As a result, the proper beam power is 60kVX60mA and welding speed is 1~1.5 m/min. The residual stress in the heat-affected zone as well as the fusion zone does not increase. It is necessary to use jigs for preventing distortion of cylinder and improving weld quality.
정재훈,홍진수,박해윤 순천향대학교 기초과학연구소 1997 순천향자연과학연구 논문집 Vol.3 No.1
Thin amorphous carbon film were deposited by Q Nd:YAG 532nm laser ablation from 99.7% graphite target with beam power density of 6x10 15 Wcm-2. In order to estimate the quality of the PLD(Pulsed Laser Deposition) film one of the most important optical properties, bandgap energy, was characterized by visible transmission and an optical bandgap energy of 2.05eV was achieved. Comparing our result with the published values in the literature we have confidence that our film shows the good quality at optical properties.
시계열분석을 이용한 한국 오징어 어업의 어획량 분석과 예측
박해훈,신형호 麗水水産大學校 産業技術硏究所 1996 産業基術硏究所 論文集 Vol.5 No.-
한국 오징어 어업에서의 22년간이 월별 어획량 자료에 시계열 분석을 이용하여 어획량을 분석, 예측하였다. 시계열 분석은 다른 생물학적, 해양학적, 사회 경제적인 요소가 없어도 단지 어획량 자료만으로 분석과 예측이 가능하다. 1971∼1990년 사이의 월별 오징어 어획량의 자료를 ARIMA 시계열 모형에 적응시켜 분석한 결과, 다음과 같은 계절 ARIMA 모형식을 구하였다. 로그(대수)변환때 : ?? Box-Cox 변환때 : ?? 위의 두 모형중 로그변환시킨 경우보다 Box-Cox 변환시킨 것이 예측오차가 적었으며, BOX-COX변환식은 ??이었다. 위의 두 모형 중 후자의 모형으로 1991∼1992년에 대해 오징어의 월별 어획량을 예측하였다. 예측 어획량과 실제 어획량과의 월별 오차범위는 0.9∼203%였다. 실제 어획량이 1991년과 1992년에 각각 109,902M/T, 139,792M/T이고, 예측어획량은 78,585M/T과 86,968M/T이었다(1991년의 오차는 24.6%, 1992년에는 27.4%). 2년 동안의 총어획톤수에 대한 오차는 26.2%였다. 또한, 스펙트럼 분석은 순환변동의 주기가 12.5개월, 2.2년 및 5.5년인 성분에서 상대적으로 큰 값을 나타내었으며, 순환변동 성분은 적절한 ARIMA 모형을 결정하는데도 도움을 준다. The seasonal Autoregressive Integrated Moving Average (ARIMA) model and spectral analysis were described to forecast the monthly landings of squid in Korea. The prediction error by the Box-Cox transformation on monthly squid catches in Korea was less than that by the logarithmic transformation. The equation of Box-Cox transformation was ??. the seasonal ARIMA model is presented ?? where : ??=value at month t: ?? is a backward shift operator, that is, ??: and ??=error term at month t, which is to forecast 24 month ahead the squid landing in Korea. Forecast of the monthly squid landings for 1991∼1992 which were compared with the actual landings had an absolute percentage error(APE) range of 11.2∼207.7%. Total observed annual landings in 1991 and 1992 were 109,902M/T and 139,792M/T respectively, while the model predicted 82.816M/T and 101,479M/t (APE 24.6% and 27.4%, respectively). And spectrum analysis of the monthly catches of squid showed some dominant flutuations in the periods of 12.5 month, 2.2 and 5.5 years. The spectrum analysis was also useful for selecting better ARIMA model.
「비해당소상팔경시권(匪懈堂瀟湘八景詩卷)」과 일본 유현재(幽玄齋) 소장 <소상팔경도>의 연관에 대하여
박해훈 국립중앙박물관·한국고고미술연구소 2009 동원학술논문집 Vol.10 No.-
Sosangpalgyeongdo(Eight Views of the Xiao and Xiang Rivers) known to have first been painted by Song Di during the Northern Song Dynasty(1015~1080) was widely popular and became synonymous with landscape paintings depicting scenic views. The Sosangpalgyeongdo was introduced to Korea during the Goryeo Dynasty and since then numerous literati and painters depicted the scenery of the Xiao and Xiang rivers in poems and paintings. Production of poems and paintings themed on the scenery of the Xiao and Xiang rivers was particularly popular, which can be conjectured from quantities and document records of Sosangpalgyeongdo which have been handed down today. One of the most representative examples of the production of poems and paintings on the eight views of the Xiao and Xiang rivers can be found from the Album of the Poems for Eight Views of the Xiao and Xiang Rivers. It was commissioned by Prince Anpyeong in 1442 to feature copying of calligraphies of poems depicting the Sosangpalgyeong written by Southern Song Emperor Ningzong and paintings on the landscapes of the Xiao and Xiang rivers. This album is of very high value as a material to show the trends of Sosangpalgyeongdo in the early Joseon period. Eight Views of the Xiao and Xiang Rivers, owned by Yoohyeonjae, is a very important work, featuring all eight views of the Xiao and Xiang Rivers, believed to have been produced relatively early in the Joseon period. Like other Sosangpalgyeongdo in the early Joseon era, it shows the painting style of An Gyeon, one of the greatest painters of the early Joseon period, and the artists are also unknown. One of the characteristics in the Eight Views is the way of marking the titles of paintings. Among the titles on the paintings, the markings of Wonpobeomgwi and Pyeongsaangrak are not found in other works and are identical with the markings of poems of Sosangpalgyeong by the Emperor Ningzong contained in the Album of the poems for Eight Views of the Xiao and Xiang Rivers. It is considered that not only the way of marking titles, but also the order of the eight views are identical with the poems of Sosangpalgyeong by the Emperor Ningzong. Therefore, it is presumed that the reason why the order of paintings and title marking methods of the Eight views owned by Yoohyeonjae are the same as those of the poems by the Emperor Ningzong is that the former had been greatly influenced by the Sosangpalgyeongdo in the Album. If the connection between the two works is discovered more clearly, more detailed analysis on how Sosangpalgyeongdo of the early Joseon period unfolded and what impact An Gyeon’s Sosangpalgyeongdo had on future generations is likely to be conducted. 본고는 조선 초기 소상팔경도의 중요한 작례로서 「비해당소상팔경시권」을 검토하고 현존하는 조선 초기 소상팔경도 중 일본 유현재 소장 <소상팔경도>와의 연관성에 대하여 고찰하였다. 북송대 송적(宋迪, 약 1015~약 1080)이 처음 그린 것으로 알려진 소상팔경도는 곧 널리 성행하며 승경을 소재로 한 산수화의 대명사가 되었다. 우리나라에서도 고려시대에 전래된 후 많은 문인과 화가들이 시와 그림으로 소상팔경을 표현하였다. 특히 조선 초기 소상팔경을 노래한 시와 함께 그림의 제작이 매우 성행한 사실은 현재 전하는 소상팔경도의 수량이나 문헌의 기록에서도 짐작된다. 그러나 팔경을 모두 갖추어 그려진 예는 많지 않은데, 현재 일본 유현재에 소장된 <소상팔경도>는 팔경을 모두 갖추고 안견파 화풍 중에서도 비교적 고식인 매우 귀중한 작품이다. 본래 화첩이었을 것으로 추정되는 이 작품은 다른 작품들과 연관된 요소가 많다는 점에서도 주목된다. 유현재 소장 <소상팔경도>를 살펴본 결과, 팔경의 순서와 화제의 표기방식 등이 같은 예는 유일하게 「비해당소상팔경시권」에 실렸던 남송 영종의 소상팔경시였다. 이러한 사실로 볼 때 유현재 소장 <소상팔경도>는 「비해당소상팔경시권」에 실린 소상팔경도를 방한 작품일 가능성이 큰 것으로 추정된다. 이는 유현재 소장 <소상팔경도>의 일부 소재와 표현이 안견의 <몽유도원도>와 통하는 점과 「비해당소상팔경시권」에 실린 소상팔경도의 작가로 안견이 지목되는 사실과도 부합한다. 한편 유현재 소장 <소상팔경도>에 나타난 소재와 표현 양식은 다소 변형되긴 하지만 후대의 소상팔경도와 산수도에 많은 영향을 미친 것으로 보인다. 앞으로 이 두 작품의 연관이 보다 분명하게 밝혀진다면 조선 초기 소상팔경도의 전개과정 그리고 안견의 <소상팔경도>가 후대에 미친 영향 등에 대해서 구체적인 분석이 이루어질 것으로 기대된다.