제주도 지하수 질산염 농도의 시·공간적 변화 특성: 장기(1993-2015) 모니터링 자료의 평가

김호림(Ho-Rim Kim),오준섭(Junseop Oh),도현권(Hyun-Kwon Do),이경진(Kyung-Jin Lee),현익현(Ik-Hyun Hyun),오상실(Sang-Sil Oh),감상규(Sang-Kyu Kam),윤성택(Seong-Taek Yun) 대한자원환경지질학회 2018 자원환경지질 Vol.51 No.1

1993년부터 2015년까지 관측된 제주도 지하수 장기모니터링 관측정(N = 4,835)에서 수집된 지하수 수질자료(N = 21,568)를 기반으로 질산성질소의 시공간적 변동 특성을 평가하였다. 제주도 지하수의 질산성질소 농도의 중앙값은 2.5 mg/L로서 다른 국가나 대륙의 조사 결과에 비해 다소 높거나 유사한 것으로 나타났다. 또한 지하수 용도, 행정구역 및 고도 별로 유의한 차이를 보였다. 특히, 산간 지역에 비해 저지대 해안가에 위치한 농업 및 주거지역에서 농도가 높음을 확인하였다. Mann-Kendall 및 Sen’s slope 분석을 활용한 질산성질소 농도의 추세 분석 결과, 하류 저지 대에 비해 중산간지역에서의 질산성질소 농도 증가 경향이 뚜렷하였다. 제주도 내 토지 피복의 시계열 변화 특성과 결부 지어 보면, 중산간지역의 오염 증가 추세는 농업지역의 확장 등 인위적 활동 증가에 기인한 결과로 판단된다. 반면,기지정된 지하수자원특별관리구역에서는 전반적으로 질산성질소 농도의 감소 경향이 나타났는데, 이는 지하수 관리 측면에서 수질관리를 위한 적극적인 정책이 유효함을 시사한다. 본 연구에서는 제주도 지하수의 질산성질소 오염관리를 위한 적정 방안을 제안한다. The spatio-temporal variations of nitrate concentrations in groundwater of Jeju Island were evaluated by an analysis of time series groundwater quality data (N = 21,568) that were collected from regional groundwater monitoring (number of wells = 4,835) for up to 20 years between 1993 and 2015. The median concentration of NO 3 -N is 2.5 mg/L, which is slightly higher than those reported from regional surveys in other countries. Nitrate concentrations of groundwater in wells tend to significantly vary according to different water usage (of the well), administrative districts, and topographic elevations: nitrate level is higher in low-lying agricultural and residential areas than those in high mountainous areas. The Mann-Kendall trend test and Sen’s slope analysis show that nitrate concentration in mid-mountainous areas tends to increase, possibly due to the expansion of agricultural areas toward highland. On the other hand, nitrate concentrations in the Specially Designated Groundwater Quality Protection Zones show the temporally decreasing trend, which implies the efficiency of groundwater management actions in Jeju. Proper measures for sustainable groundwater quality management are suggested in this study.

부정교합 아동의 성장에 따른 연조직 측모의 변화

권오원,경희문,장병천,성재현,김정민 대한치과교정학회 1989 대한치과교정학회지 Vol.19 No.3

This investigation was undertaken to know how soft tissue facial profile could changed with age. The 3 serial lateral cephalometric roentgenograms of the twenty nine boys and twenty six girls between 9 and 13 years of age were studied and the findings seemed to warrant the following conclusions. 1. The author made the tables of means, standard deviations in each item, sex, age. 2. Soft tissue facial angle, soft tissue facial convexity including the nose tended to increase, but others tended to remain relatively stable. 3. Facial soft tissue thickness increased with age and the growth of facial soft tissue in the middle rgion (point A, LS, LI)was greater than others in the facial region. 4. In the soft tissue vertical proportions, GI'-Sn/Sn-Me' was 1.1, Sn-St/St-Me' was 0.51:1, Sn-LI/LI-Me' was 0.82.1 and those were stable with age.

柳宗悅의 韓國工藝觀에 對한 考察

權相五 新羅大學校 1985 論文集 Vol.18 No.-

Yanagee Mooneyoshi is the one who proposed, developed, and completed the folk art movement so much as he is called the beginner of folk art movement and titled the poet of folk art. This paper would search for the answer to the question what is his view of the Korean craft and what is its cenceptual background. His view on the beauty can be described as the beauty of common life, the beauty of unartificial work, and the beauty of natural states resulted from Great Nature works. He tried to find out the unartificial beauty in the folk art works. He thought there were countless beauties in the each traces resulted from engraving the wood. He took a leading role in the humanism movement of Daijung Age(1912-1925). His views on the Korea and Korean arts had a little tendency of dogmatism and fanaticism. His established philosophy about Korean beauty, however, may be effective and true for a long tine. He sharply proposed that Korean ants contain the characteristics of curve, and that the fact be explained by the folk hope for the next world compersating for the dissatisfaction and agony of this world. He also claimed that the curve was derived from the tragical history of Korean people and that the curve was related with Korean political situations. Yanagee took the position criticizing the Japanese error. His view on the beauty of curve is identical with that of Korean historians on the Korean arts. Ko Yooseop. A historian of Korean arts. represented the characteristics of Korean arts as caim and solitary beauty, and simple beauty. which can be compared with Yanagee's beauty of line and beauty of folk art, Kim Wonlyong also said in the preface of his history of Korean arts that Yanagee's linear characteristics was the property of Korean arts. The reason why we now reconsider Yanagee is that our view to him to day can not be identified with other Koreans'. In that time, he represented and consoled the angers and sorrows of the colonized Koreans who must endure the oppression of Japan. and understood and liked the core of Korean arts which the oppressed people had accomplished.

소장 질환이 의심되는 환자에서 캡슐내시경과 CT 소견의 비교

이성수,홍성숙,김정훈,김연수,김진오,권석범,박성태,장윤우,최득린,권귀향 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.1

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個人用 컴퓨터를 利用한 水力發電댐의 流入量 豫測

權五憲,李尙和 忠南大學校 産業技術硏究所 1986 산업기술연구논문집 Vol.1 No.2

The main purpose of the study is to develop a computer program in the personal computer which calculates numerically the inflow from the rainfall and displays the inflow hydrograph on a CRT. The computer programs, which were developed for the inflow forecasting of the short-range, employed the storage function method. The program which computes the inflow from the rainfall would be applicable effectively both to planning the daily/weekly power generation and to operating the dam for the flood control. The inflow calculated by the computer program gave a good agreement with the actual inflow for the Choon Chun and the Cheong Pyung dam.

Morgagni 탈장 : 1례 보고

오연희,이창욱,김승현,이성우,정병욱,이준희,박동일,권영무,신현종 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

Morgagni 탈장은 횡격막의 전내측 부위의 발달이상으로 열공을 통하여 장관이나 대망과 같은 복강내 구조물이 흉곽내로 빠져나가는 드문 질환으로 알려져 있다. 저자들은 호흡곤란을 주소로 내원하여 방사선학적 검사와 수술로 확진된 1례를 보고한다. Morgagni hernia is improperly located abdominal viscera into the thoracic cavity through the foramen of Morgagni which is a congenital defect at the anterornedial portion of diaphragm. We report a case of Morgagni hernia diagnosed by radiologic examination and operation.

개개 치아의 inclination과 angulation을 측정하는 보조기기를 이용한 tooth positionner의 제작

권오원,황해상 대한치과교정학회 1999 대한치과교정학회지 Vol.29 No.2

교합기에 거상된 모형 상에서 각 치아의 순, 협설측경사와 근원심경사를 적절하게 조절할 수 있도록 개발된 측정기구를 교정 치료의 마무리 단계에서 술자가 원하는 보다 정확하고 좋은 교합으로 유도하는 tooth positioner의 제작을 위한 셋업 모형 제작에 이용하는 방법을 보여 주고자 한다. In this article, we introduce a new method of tooth positioner fabrication using modified T. A. R. G. to measure the inclination and angulation of individual teeth.In finishing stage of orthodontic treatment with a fixed appliance, we anticipate that tooth positioner fabricated using the described construction method provides the movement of individual tooth into a desired position : corrected inclination and angulation of teeth, extrusion,intrusion, rotation and so on.

Streptomyces badius(ATCC 39117)에 의한 페놀화합물과 다환 방향족 탄화수소의 분해

권오성,윤경하 순천향대학교 기초과학연구소 1998 순천향자연과학연구 논문집 Vol.4 No.1

Biodegradation capabilities of some phenolic compounds and polycyclic aromatic hydrocarbons with Streptomyces badius(ATCC 39117) were investigated. When the strain was incubated with 100mg/l (final concentration) of vanillic acid, ferulic acid, protocatechuic acid, syringic acid and catechol at 30℃ for 20 days, the strain removed 92.3% of vanillic acid, 80.4% of ferulic acid, 76.2% of protocatechuic acid, 70.4% of syringic acid and 20.2% of catechol. When the strain was incubated with 10mg/L(final concentration) of anthracene, phenantthrene and benzo(a)pyrene at 30℃ for 20 days, the strain removed 47.7% of anthracene, 79.8% of phenanthrene and 71.7% of benzo (a) pyrene.

온라인 한글 인식에 적합한 새로운 신속 정합 알고리즘

권영빈,권오성 중앙대학교 생산공학연구소 1993 생산공학연구소 논문집 Vol.2 No.1

일반적으로 한글을 포함한 문자 인식은 문자를 이루는 획수와 형태의 심한 변형에 따른 어려움을 갖고 있다. 본 논문에서는 이러한 변형을 효과적으로 처리할 수 있는 스트링 정합 방법을 제안한다. 이 방법에서 입력되어진 문자는 선분들의 방향값과 특징에 따라 정의된 기호들의 스트링으로 변환된다. 스트링 사이의 정합은 스트링 편집과 비교순서함수에 의해 이루어 진다. 스트링 편집은 교환, 삽입, 삭제 연산에 의해 행해지고, 비교순서함수는 연산 결과에 따라 다음에 비교할 스트링의 기호 순서를 정의한다. 인식 실험을 통하여 제안하는 방법은 스트링 정합방법으로 자주 사용되는 DP(dynamic programming)방법에 비하여 1/18 정도의 수행시간을 요구하고, 50명이 쓴 21,076자의 필기에 대하여 88.96%라는 만족스런 인식률을 제공하였다. In general, the recognition of characters including Hangul has been many troubles owing to the severe variations of stroke number and of their shape. In this paper, we propose a method efficiently handling the variation of handwriting styles. An input characetr is converted into the line-segments of equal size and they forms the string after extracting the features. A Matching between strings is carry out by a string editing and the order of the comparison is done by the predefined function. The string editing is defined by the operations such as change, insert, and delete. Using the result of string editing, the predefined function for comparison order defines the orders of symbols in a string to be compared. From experimental results, the proposed method requires only 1/18 of recognition time comparing with the DP method and it reaches 88.96% of recognition rate over 21,076 cursive characters obtained from 50 different persons.

日本 漆工藝의 硏究

권상오 신라대학교 예술연구소 1996 예술연구 Vol.1 No.-