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Magnetic Investigation of the Yangsan Fault
권병두,이기원,Kwon, Byung-Doo,Lee, Ki-Won The Korean Society of Economic and Environmental G 1991 자원환경지질 Vol.24 No.4
경상분지내에서 가장 뚜렷한 선구조로 나타나는 양산 단층이 지나는 곳으로 생각되는 네 지역을 선정하여 육상자력탐사를 실시하였다. 정성적 분석을 위한 자료처리과정으로는 표준자기장 (IGRF) 보정, 상향 연속과 자극화 변환을 수행하였고, 정량적 해석을 위해서는 수평 2층 지하 지질구조에 있어서 하부층까지의 심도를 모델변수로 하는 비선형 자동 역산법을 적용하였다. 육상자력 이상도의 상향 연속 결과와 동일 지역에서 수행된 항공 자력 탐사자료를 비교한 바에 의하면 두 자료의 유사도가 비교적 높게 나타났다. 네 곳의 탐사지역내에서 양산 단층의 주향은 북동$6^{\circ}-15^{\circ}$의 경향이 우세하게 나타났으며, 단층의 경사는 지역적인 암상의 변화에도 불구하고 수직내지 약간 동쪽 방향의 경사를 갖는 것으로 나타났다. 탐사 지역중 가장 북쪽에 위치하는 안강부근의 제 1 탐사지역에서는 단층구조에 의한 자력효과가 화성암의 관입에 의한 효과와 함께 나타난 복잡한 양상을 띠며, 언양부근의 제 2 탐사 지역에서는 단층면을 따라 약 200 - 300 미터의 폭을 갖는 화산성, 혹은 화성 기원의 관입이 일어난 것으로 보인다. 용연 부근의 제 3 지역에서는 다른 지역과는 달리 단층운동에 의한 것으로 생각되는 파쇄대가 약 600 - 700 미터 정도의 폭으로 비교적 뚜렷하게 나타났다. 가장 남쪽에 위치하는 양산부근의 제 4 지역에서는 안산암 시료가 매우 큰 대자율 값을 보이며, 본 연구 결과 이 지역의 단층선은 기존 연구에서 제시된 단층선보다 약 500 미터 정도 동쪽으로 치우쳐 나타난다. Ground magnetic surveys were conducted at four areas where the Yangsan fault, the most prominent lineament in the Kyeongsang basin, appears to be passed through. For data processing, IGRF correction, upward continuation and reduction-to-the-pole were performed. The automatic inversion by using a matrix computation method, which takes the depth to bottom layer of the horizontal two layer structure as the model parameter, has been attempted to delineate the subsurface structure. Upward continuation of the surface magnetic map to the same level of the aeromagnetic survey (KIER, 1989) resulted in very similiar patterns to those of aeromagnetic data. Subsurface modeling of eight profile data show that the strike and dip of the Yangsan fault in study areas are $N6^{\circ}-15^{\circ}E$, and near vertical to somewhat eastward, repectively, despite of the local lithological contrast of each study area. It seems that the magnetic effect of faulting in the study area 1, which locates in the most northern part of the survey areas, is disturbed by that of igneous intrusion. At study area 2, the possibility of volcanic or igneous intrusion, which is 200-300 meters wide along the fault plane was presented. At study area 3, unlike other study areas, distinct fracture zone of 500-700 meters in width was revealed along the surface fault line. The andesitic rocks of the study area 4 have very high susceptibilities and the fault line on surface of this area was shifted about 500 meter eastward, as compared with the inferred fault line by the previous study.
소화불량(消化不良)과 과심상(過心傷)의 상관성(相關性)에 대(對)한 고찰(考察) -스트레스, 기울(氣鬱), 비병증(脾病證)의 평가(評價)를 통(通)해-
김진성,윤상협,류봉하,류기원,이상욱,Kim, Jin-Sung,Yoon, Sang-Hyub,Ryu, Bong-Ha,Ryu, Ki-Won,Lee, Sang-Wook 대한한방내과학회 2004 大韓韓方內科學會誌 Vol.25 No.4
Background & Object : Dyspepsia for which no organic causes are disclosed is referred to as functional dyspepsia. Functional dyspepsia is here studied in connection with a biopsychosocial model. From the aspect of individual response to external environment, in connection with stress response, functional dyspepsia is studied by both the psychology department and the internal medicine departments. The disease is taken as approachable from the aspect of internal injury due to seven emotions and stress as differentiated by Oriental medicine. Materials and Methods : Targeted at 223 patients underwent medical checks and endoscopy at Kangnam Korean Hospital, Kyunghee University. They agreed to join this clinical experiment. Stress response inventory, GARS (global assessment of recent stress scale), GSRS (gastrointestinal symptom rating scale), diagnostic scores for Ki-depression, and Spleen Disease Differentiation of Syndromes were all measured and evaluated. The test group was comprised of functional dyspepsia patients. The control group was comprised of nonsymptomatic chronic gastritis patients who were found to suffer from chronical gastritis in endoscopy and thus could be diagnosed with functional dyspepsia if symptoms would arise, but did not complain of subjective symptoms. Results showed these corelations: Functional dyspepsia patients were found to have more serious Ki-depression compared to nonsymptomatic chronic gastritis patients. The more serious Ki-depression the more serious the dyspepsia symptoms. The higher the stress response inventory the more serious the dyspepsia. Deficiency of spleen Eum, and Deficiency and Sinking of spleen Gi were found to coincide with serious Ki-depression.
지식기반 자체조인트 단면 평가 데이터를 이용한 차체 다분야 구속 최적설계 프로세스에 대한 연구
이동호(Dong-Ho Lee),기원용(Won-yong Ki),허승진(Seung-Jin Heo),김정호(Jung-Ho Kim),이경원(Kyungwon Lee) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5
To achieve effectiveness and optimized design for light weight vehicle body, many concept design methodologies have been studied. However, study using database would be not conducted yet. Therefore, In this study, it is a study on body structure multi-disciplinary optimum design process using knowledge-based body joint cross-section database. The database includes 42 competitive vehicles with 10 cross-sections. Using the database, cross section of body structure is selected for conceptual model construction. The target is reference model`s performance improvement. To select suitable cross section, what-if design method is applied. As a result, crashworthiness is about 15% and static/dynamic stiffness is 3.5% improved And also, body structure`s mass is 0.5% diminished. From this paper, it could be verified that cross-sectional performance affects body structure performance. Moreover, by evaluation of cross-section performance, fast variation of concept design would be capable.
안영숙,민병희,서윤경,이기원,AHN, YOUNG SOOK,MIHN, BYEONG-HEE,SEO, YOON KYEONG,LEE, KI-WON 한국천문학회 2017 天文學論叢 Vol.32 No.2
The life and astronomical activity of Lee Deok-Seong (李德星, 1720-1794) was studied using various historical sources, including the astronomical almanac, Seungjeongwon-Ilgi (Daily records of Royal Secretariat of Joseon dynasty), and the Gwansang-Gam's logbooks during Joseon dynasty (A.D. 1392-1910). We present the results of the study including the following main findings. First, from the investigation of Lee's family tree, we find that a number of his relatives were also astronomers, notably Samryeok-Gwan (三曆官, the post of calendrical calculation). Second, we find that he took part in the compilation of an annual astronomical almanac over a period of at least 16 years. His major achievements in the astronomy of the Joseon dynasty were to establish a new method of calendar-making calculation and to bring astronomical materials to the Joseon court through a visit to China. The Joseon dynasty enforced the Shixianli (時憲曆, a Chinese calendar made by Adam Shall) in 1654 without fully understanding the calendar. So an astronomer and an envoy were dispatched to China in order to master the intricacies of the calendar and to learn as much of Western science as was available in that time and place. Lee Deok-Seong worked at the Gwansang-Gam (觀象監, Royal Astronomical Bureau) during the reigns of King Yeongjo (英祖) and Jeongjo (正祖). As best as we can ascertain in relation with the calculations in the Shixian calendar, Lee visited China four times. During his trips and interactions, he learned a new method for calendar-making calculations, and introduced many Western-Chinese astronomical books to Joseon academia. Lee greatly improved the accuracy of calendrical calculations, even while simplifying the calculation process. With these achievements, he finally was promoted to the title of Sungrok-Daebu (崇祿大夫), the third highest grade of royal official. In conclusion, history demonstrates that Lee Deok-Seong was one of the most outstanding astronomers in the late-Joseon dynasty.
상수원수 수질변화에 따른 전오존 처리효과 및 경제성 평가
최동훈 ( Dong Hoon Choi ),박진식 ( Jin Sik Park ),문추연 ( Choo Yeun Moon ),이재용 ( Jae Yong Lee ),유동춘 ( Dong Choon Ryu ),장성호 ( Seong Ho Jang ),권기원 ( Ki Won Kwon ),이수애 ( Soo Ae Lee ) 한국환경과학회 2013 한국환경과학회지 Vol.22 No.4
This study, changes in raw water quality is to indicate on the efficiency of ozone treatment of each pollutant as compared to derive the appropriate operating measures. The appropriate selection for injection rate of pre-ozone and did not inject pre-ozone assess changes in the water. When good water quality, you not injected of pre-ozone to evaluate the economic efficiency of electricity and put the most cost-effective ozone concentration were evaluated. Evaluation remove organic matter and chlorophyll-a concentration level in experiments with each factor of the water DOC> 2.5㎎ / L, THMFP> 70㎍ / L, Chl-a> 30㎎/㎥or less constant process, if you do not need to put pre-ozone showed little impact. It also does not put you in pre-ozone appropriate produce enough power rate savings was calculated as approximately 90 million won. Ability to remove organic materials and the ability to produce disinfection byproducts, and cost-effective decisions by considering the concentration of injection if pre-ozone 1 mg/L was investigated by the appropriate concentration of ozone injection.
MEMS 기술을 이용하여 제작한 적외선 영상 투사용 에미터 단위 소자의 특성 분석
박기원(Ki Won Park),신영봉(Young Bong Shin),강인구(In-Ku Kang),이희철(Hee Chul Lee) 대한전자공학회 2017 전자공학회논문지 Vol.54 No.3
본 논문에서는 가상의 적외선 영상을 투사하여 적외선 검출기의 성능 평가를 위한 목적으로 사용되는 적외선 영상 투사장치 (Infrared scene projector, IRSP)의 내부에서 적외선을 방사하는 역할을 하는 적외선 에미터 소자에 대한 연구가 수행되었다. 적외선 에미터 소자의 구조를 설계한 후 설계된 소자의 특성 파라미터들을 추출하였으며 각 특성 파라미터에 근거한 소자의 성능을 유한 요소법을 통해 예측하였다. 또한 소자를 구성하는 각 부분의 특성에 따른 물질 선정 후 MEMS 기반 반도체공정기술을 적용하여 에미터 단위소자를 제작하였고 중적외선 대역(3∼5μm)의 적외선을 관찰할 수 있는 적외선 영상 현미경을 사용하여 진공 환경을 갖춘 챔버 내부에서 소자의 성능을 측정한 결과 최대 423K의 유효온도 및 22msec의 응답 시간을 나타내는 것을 확인하였다. In this paper, designed infrared (IR) emitter device for infrared scene projector (IRSP) which is used for evaluating the performance of IR sensor systems was simulated by using finite element analysis (FEA) tool and fabricated by using MEMS (Micro Electro-Mechanical System) technology. The performance of the fabricated IR emitter unit device was characterized in the vacuum chamber by using IR image microscope for MWIR(3∼5μm), which showed 423K apparent temperature (Tapp) and 22msec time constant (τ).
티모시의 품종에 따른 성숙종자 유래의 캘러스로부터 식물체 재분화
이기원(Ki-Won Lee),최기준(Gi Jun Choi),김기용(Ki-Yong Kim),지희정(Hee Chung Ji),정민웅(Min Wong Jung),김경희(Kyung-Hee Kim),이병현(Byung-Hyun Lee),이상훈(Sang-Hoon Lee) 한국초지조사료학회 2011 한국초지조사료학회지 Vol.31 No.3
티모시의 4가지 품종을 이용하여 성숙종자로부터 캘러스 유도 및 식물체 재분화 효율을 조사하였다. 4주 동안 배양한 종자로부터 캘러스 유도율은 Colt, Chair, Richmond, Hokuo 순으로 캘러스 유도율을 보였고, 식물체로의 재분화 또한 캘러스 유도율과 같은 Colt>Chair>Richmond>Hokuo 순으로 나타났다. 기본 배지의 종류에 따른 배양 효율의 차이는 품종별 차이는 있으나 MS 배지가, 식물체 재분화는 N6 배지와 MS 배지가 SH 배지에 비해 효과적이었다. 전체적으로는 캘러스 유도율이 높은 품종이 식물체 재분화율도 높은 경향을 나타내었다. 본 연구를 통하여 밝혀진 캘러스 유도와 식물체 재분화율이 우수한 Colt 품종은 유용유전자 도입을 통한 신품종 개발에 유용하게 이용될 수 있을 것이다. The present study was conducted to determine the optimum in vitro conditions for callus induction and plant regeneration from mature seed derived callus of four cultivars of Timothy. In order to investigate the effects of genetic variations of timothy in tissue culture, calli were induced from mature seeds of four varieties, 'Colt’, 'Chair', 'Richmond' and 'Hokuo' and plant regeneration frequency was compared. Significant differences were observed among the cultivars in both callus induction and plant regeneration. Genotype 'Colt' consistent1y performed best in the callus subculture and plant regeneration. The complete plantlets were thereafter transplanted to grow under greenhouse condition. Regenerated timothy plants were morphologically uniform with normal leaf and growth pattern.