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        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.

      • 土地法의 性格에 관한 硏究

        吳顯鎭 청주대학교 사회과학연구소 1988 한국사회과학연구 Vol.7 No.-

        We can devide the land law in the public land law and private land law according to the dicho tonomous system of law classification. But rapid industrialization and urbanization have caused a lot of problems such as labor problems, unfair trade by economic monopoly, and land speculation. Labor problems can be solved with the helf from the labor law, mono-poly and unfair trade can be solved with the helf from economic law, other social problems can be solved by the so-called social law. But the land law, which doesn't have clear definition and its system, use public land regulations including land texation to solve the land problems. There are a lot of land laws which have the social law characteristics as well as both public law characteristics and private law characteristics. But no one claims that the land law has the soial law characteristics Therefore, this writer said that the land law has social law characteristics because of following reasons. 1) Land is natural one and the foundation of everything in the world, So one of its characteristics is common goods which no individual can own. Therefore it emphasis on its, social and common goods characteristics 2) As mentioned above, land is regulated by both the private law and the public law and there are several land laws which have social law characteristics 3) In the modern industrialized society land law, which realizes one of the constitutional ideals, is necessary to coodinate conflicts which are raised from both realization public interest goals such as common use for the public interest and improving public welfare and prottection of the private right. Therefore we should review laws related land from the different point of views, such as social justice and legal stability. Because we can not solve social problems which are raised by the land with the help from current land laws. We should redifine the legal concept of land and make a new basic land law which has social law characteristics. From the these kinds of point of views, this writer try to redifine the legal concept of land. The legal concept of land is defined as having common interest and harmonious use concept which coodinate both private land law and public land law rather than public interest concept which causes a lot of misunderstandings. To solve social problems related to land, which will cause conflicts private interest and pubilc interest such as 1) the ones arised from land use, between profit and sale 2) the ones caused from land trade, evaluation and taxation 3) the ones raised from land registration cadaster and land registration, we should make the basic land law modeled from Taiwan. I am sure that the basic land law will be a means to direct and correct life space use.

      • 土地公示制度의 改善方向에 관한 硏究

        吳顯鎭 청주대학교 사회과학연구소 1989 한국사회과학연구 Vol.8 No.-

        We can divide problems involving public land notificaton macro one and micro one. 1) Problems from the micro perspective include the ones relating land register real. For example, coincidence between practical characteristics of land and that of register book should be secured and fuctions of land register administration should be changed and land registration and building registration must be written at the same register book to promote the public confidence at the registration system. We also manage land value notification system comprehensively trough streamlining land laws. and we must nuify under one system current diversifid land value notification system to solve lots problems caused by current systems. 2) From the macro perspective, we try to revise current land notification system. For example, land speculation caused a lot of social problems including antipathy between classes. So I'd like to propose so-called Basic Land Law to prevent land speculation form spreading across the country. Therefore, Basic Land Law should contain such substances as land register, real estate registration, zoning standards, and land value notification standards. Real estate registration administration should be separated from the court and another independent office should be established to emplement land administration efficiently.

      • 土地公法論의 體系化에 관한 硏究 : 實定法上 土地의 公的槪念을 中心으로 with special reference to the public concept of the existing land related provisions in Korea

        吳顯鎭 청주대학교 1987 한국사회과학연구 Vol.6 No.-

        Public announcement laws about land are on the rise in this country nowadadys and its kinds are amount to 100. I think since such public land laws are made according to occasional needs, there exist a lot of problems such as lack of essential concept and purpose of public land law, lack of fairness, equity and consistency. Therefore this writer try to attempt following studies to systematize public land laws. 1) I try to seek common denominator about concept of land among related clauses of consitution, which is basic law, as well as those of private laws and public laws to define concept of land in terms of law, 2) I took a look at characteristics of public land laws as a part of administrative law and foundations and limits of public land law regulation as embodying law of constitution in connection with guarantee of property right in terms of private law, 3) I criticize division of land ownership and land use rights with respect to public land concept, which took place during the systematization process of public land law. Also, I study administrative authority's planning discretion on the land and a balance comparing theory of West Germany and system of advance anouncement about law-making, citizen's participation, which were introduced as prior filtering system between realization of public interests and guarantee of private law, judicial control as a means of post relief system and infringement by expropriation likeness and expropriation itself. 4) I deal with land law systems of both west Germany and Republic of Chaina in connection with directions and models of public land law systematization. To systematize public land laws. 1. This Writer try to define land as a public concept on the life space by grasping basic concepts on the regulation of both public law and private law as interdependence and compensative coodination between realization of public purpose and guarentee of private rights. 2. I try to de vide public land law as a public burden act which was treated at past administrative law, into. 1) Burden on the land use and returns (profits) . 2) Burdens on the returns profits and disposal of land. Then I divide the former into again, ① restriction for public use, (O˝ffentlich-rechtliche Eigentumsbeschra˝nkung). ② replotting for public use, (Urnlegung, Zusammenlegung). the latter into ⅰ) expropriation for public use. (Enteignung, Compulsong acquisition). ⅱ) licence system and reporting system of land transaction, etc. 3. Since modern state is called planning state and we feel the importance of planning at the every sphere of our life, Planning laws play very important roles in conjunction with realization of public interests as well as protection of private rights. So, We'd like to separate planning restrictions from restrictions for the public use, and make public land law become land planning laws. 4. We'd like to unite laws about site, structure, standard of facilities and use of buildings into constructional regulation act as a part of public land law. 5. Finally, I demand to introduce Basic Land Act like Taiwan as a way of systematization of public land law.

      • 경기도 용인시(경희대학교) 주변지역의 지하수 오염현황

        오종민,김홍석,진현오,윤세철 경희대학교 환경연구소 1998 環境硏究 論文集 Vol.8 No.-

        Recently, the concern about groundwater pollution is increasing. And, groundwater was one of the major water resource used as drinking water by eighty percent of the world population, and its utility as industry water, agriculture water, fresh water was increasing. But, when pollution material was found in housing well, by purifying polluted water, the area of doing thorough conservation management was few. Thus, if water resource being regard as unlimited source, the right view of nature and scientific utility were essential because of the problem of its value. The purpose of this study was that investigated groundwater quality pollution condition in the part areas of Kyunggi-do Suwon Si, Yong-In Si, proposed to efficient management plan for pollution occurrence prevention and groundwater quality development by surveying groundwater pollution source. The result of the study was that the groundwater by use purpose could systematically manage water quality since development beginning, management system about groundwater development with use can established.

      • 삼나무의 생장과 침엽 및 토양양분 조성과의 관계

        진현오,오종민 경희대학교 환경연구소 1998 環境硏究 論文集 Vol.8 No.-

        This study was carried out to investigate the chemical properties of the soils and nutrient concentrations of the needles at the different site quality from the established Japanese cedar (Cryptomeria japonica) forests in Cheju island. Major results can be summarized as follow. 1. The nutrient concentration in needles was not correlated with needle-type and tree height growth. 2. A significant relationship was found to exist between site quality and exch Ca exch Mg, avail. K in the surface soil and N, K, Ca concentration in the needle. 3. Exch. Ca, exch. Mg and avail. K in the surface soil was related closely to N, K, and Ca concentration in the needle. 4. Appropirate concentration of chemical properties in the surface soil and current year's needle are exch, C04.0, exch. Mg>2.0, avail. K>0.5(me/l00g) and N>1.5, K>0.8, Ca>1.5(%), resepectively.

      • 영지버섯 생장점 단백다당체 GLB의 대식세포 활성화 효과

        오정연,조경주,정수현,김진향,Lillehoj, H.S.,정경수 충남대학교 약학대학 의약품개발연구소 1998 藥學論文集 Vol.14 No.-

        In the previous study we described the antitumor activity of GLB. a protein-polysaccharide fraction of the growing tips of Ganoderma lucidum, against sarcoma 180 solid tumor in ICR mice. In this study we investigated the stimulatory activity of GLB on macrophages. When analyzed using a flow cytometer. GLB (100 ㎍/㎖) was found to increase the phagocytic activity of the BALB/c mouse peritoneal macrophages as well as chicken macrophage BM2CL cells against FTTC-labeled C. albicans by 55.2% and 21.2%, respectively. GLB also increased the spreading and the expression of MHC class Ⅱ molecules of BM2CL cells as well as the mouse peritoneal macrophages. From these results, it is clear that GLB is a strong stimulator to the macrophages.

      • 토양으로부터 항세균성 물질을 생산하는 Streptomyces sp. 의 분리

        오현정,정완석,김세재,김창진,고영환 제주대학교 생명과학연구소 1999 제주생명과학연구 Vol.2 No.-

        제주도의 토양에서 분리된 방선균 307주를 대상으로, paper disc법과 시험관 희석 배양법을 사용하여 항세균성 물질을 생산하는 균주를 선별하였다. 약 3.3%에 상당하는 분리주들이 Escherichia coli 8749, Staphylococcus aureus 6538 그리고 Pseudomonas solanacearum 10692에 대해 항균효과를 나타냈고, 그 중에서 가장 높은 항균활성을 나타내는 BL93 균주를 최종선별하여 동정하였다. BL93 균주의 배양학적, 형태학적, 생리학적, 생화학적 그리고 화학분류학적 특성을 기준으로 볼 때 Streptomyces violaceus와 유사하였기에, Streptomyces sp. BL93으로 명명하였다. 이 균주가 생산하는 항세균성 물질은 butanol보다도 물에 더 잘 녹는 극성화합물로 chloroform이나 ethylacetate에는 거의 용해되지 않았다. 100℃에서 30분간 가열 처리해도 활성의 소실이 거의 없었고, pH 3∼9범위에서 안정하였다. 분리균주 BL93은 aspartocin을 생산하는 Streptomyces violaceus와 유사함으로, BL93이 생산하는 항세균성 물질의 동정 및 aspartocin과의 비교 검토가 선행되어야 할 것이다. Three hundred and seven isolates of Actinomycetes were isolated and purified from soil samples in Cheju Is. to screen antibacterial compounds. About 3.3% of the isolates showed antibacterial activity, and one of them, BL93, showed relatively higher antibacterial activity against Escherichia coli 8749, Staphylococcus aureus 6538 and Pseudomonas solanacearum 10692 by both paper disc method and tube dilution incubation method. The isolate BL93 was similar to Streptomyces violaceus based upon its cultural, morphological, physiological, biochemical and chemotaxanomic characteristics. It was designated as Streptomyces sp. BL93. The antibacterial substance produced by the isolate BL93 had higher affinity for water than butanol and was insoluble in chloroform or ethylacetate. Most of its antibacterial activity was retained even after heating at 100℃ for 30min and was stable at pH ranges 3 to 9. As the isolate BL93 was tentatively identified to be Streptomyces violaceus, the antibacterial substance preferentially need to be identified and compared with aspartocin, an antimicrobial compound produced by Streptomyces violaceus.

      • GMAHN 환경에서의 TCP 프로토콜 성능 분석

        吳世德,金玄旭,李光培,張良根,裵振勝,金在浩 明知大學校 産業技術硏究所 2007 産業技術硏究所論文集 Vol.26 No.-

        Recently, GMAHN that provides interface between MANET and Wired Network has been focused in Mobile Communication. It is necessary that The technology provide reliable data transmission technology between mobile node and wired network in MANET environment that varing by the node movement. In this paper, using the TCP protocol(Tahoe, Reno, Vegas, SACK)that increases reliability between source and destination, we applied the TCP protocol mechanism to various environment, and compared result, and also proposed the efficient TCP mechanism by comparing each mechanism.

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