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.

韓服地의 力學的 特性에 關한 硏究 : (第2報)女子用 秋冬韓服地 (Part 2)On the Women's Fall & Winter Fabrics

成秀光,高在運,權五敬 한국의류학회 1988 한국의류학회지 Vol.12 No.2

In the part 1, relations were found between fundmental mechanical properties and primary hand values, performance of Korean women's summer fabrics. In this paper, in order to investigate the hand values and mechanical properties such as tensile, shearing, bending, compression, surface and thickness & weight of the women's fall & winter fabrics were measured by KES-F system. Sorts of 90 commercial fabrics for women's fall & winter clothes were classfied into 39 silk and 51 polyester fabrics according to meterials. The experimental results were analysed statistically to relate the hand values and the mechanical properties and concerning to formation of weared clothes and transformation behavior were investigated. Furthermore, there mechanical properties as well as their hand values were discussed in comparison with those values for kimono fabrics. The main results are summarized as follows; 1. The shape of silk fabrics in formation for weared clothes show a box-shaped silhouette. Polyester fabrics has a easy to shape-less and make a silhouette which goes along with the body. 2. Silk fabrics for Korean women's fall & winter clothes have ±1σ range of bending, shearing, surface properties and thickness as compared with kimono fabrics. 3. A wrinkle recovery and drapability of silk fabrics for Korean women's fall & winter clothes are inferior to kimono fabrics. On the other hand, the fabrics for Korean women's fall & winter clothes have conical-shaped silhouette based on higher bending rigidity. 4. Except for flexibility with soft feeling, a primary factor of mechanical properties contributes to the hand values of fabrics for Korean women's fall & winter clothes having no concern with materials were same as the women's summer fabrics. 5. As for the hand values of fabrics for Korean folk clothes, stiffness, anti-drape stiffness are larger than those of kimono fabric and stiffness, anti-drape stiffness, crispness of fabrics for Korean women's fall & winter clothes have smaller values as compared with Korean women's summer fabrics.

자연생태계의 가치평가

권오상 서울대학교 농업개발연구소 1999 농업생명과학연구 Vol.3 No.-

The contingent valuation method (CVM) is a widely used analytical tool to derive the economic value of ecology conservation. However, CVM has a strong limitation in evaluating multiple attributes of ecology since it usually compares only two possible states of ecology. On the other hand the contingent ranking method (CRM) which is a generalized model of referendum-type CVM can be usefully used for the purpose of evaluating multiple attributes of ecology. We constructed a CRM model and applied it to the ecology conservation of Kwanggyo mountain. Both use and nonuse values of the ecology have been estimated. The economic value of each attribute of ecology also has been derived.

몽골의 음악 : 현지 조사 보고

권오성 중앙대학교 중앙음악연구소 1992 중앙음악연구 Vol.3 No.-

프랙탈차원을 이용한 고인성 균열진전거동의 평가에 관한 연구

권오헌,윤유성 釜慶大學校 1998 釜慶大學校 論文集 Vol.3 No.2

The application of fractal concept provides an useful method in the study for the quantitative analysis of highly irregular fracture surfaces and crack profiles. Fractal curves have a characteristic that erpresents a self similarity as an invariant based on the fractal dimension. The fractal dimensions were obtained by the method of a box counting. In this report, we obtained the nearly stable fractal dimensions of fracture crack profiles for the STS316 with CT specimen as the crack advances and the relationship between fractal extension crack lenght and fractal dimension. From the results, we concluded that the crack profile of high toughness material shows the fractal characteristic also, which can be used in order to evaluate more precise prediction of the crack life.

아파트단지의 규모에 따른 적정 내부도로 패턴설정에 관한 연구

권오상,이영무 홍익대학교환경개발연구원 1997 환경개발연구논문집 Vol.2 No.-

The purpose of this is to establish inner road pattern according to the size of a residential complex, namely 250m×250m as small complex 500m×500m medium complex and 1km×1km large one. The criteria of establishing road pattern NO.1, efficient access to each apartment buildings from such outside roads as the artery roads or the collector-distributer roads. NO.2, guaranteeing the safety of occupants by way of eliminating the through traffic which poses not only traffic congestion but also safety hazards. NO.3, further enhancing the living condition of occupants by separating the pedestrians from vehicle movements. Inner pattern of road system of any apartment complex greatly depends on the configuration of the site, exterior road and adjacent land use. In this study, the exterior condition is ignored in order to create prototype models. Accordingly the sites are shown as squares in three different sizes, small, medium and large, in order to establish the conceptual guidelines. The results are ; small complex is best suited with the single through road which comes in from one end of the site and goes out through the other end. The medium and large sites are best served with a ring road at the center and branching access roads towards the perimeter, the former with four and the latter with eight.

都市便益施設에 의한 定住環境 分析에 관한 硏究

權俊五,金宇赫,姜聲泰 조선대학교 국토개발연구소 1996 국토개발연구 Vol.16 No.1

This Study is to obtain the technical index using the urban facilities on the objects of urban in Korea, compares and analyzes the urban scale of according to the population, analyzes the living environment of urban and them is to suggest the policies for the balanced development of nation and the effective growth of urban systems, and the research of nation and the effective growth of urban systems, and the research results are as follows; ① in the case of the urban of the population more than 500,000, educational, hygienic and cultural facilities have the most influence on it, ② in the case of one with 200,000 to 500,000, information, communication, social welfare, administration and leisure facilities and ③ in the cse of one with population less than 200,000, social welfare, leisure and hygienic facilities, so, it is considered that the expansion of each urban facility is required in the living environment of each city.

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.

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.

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.