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한국(韓國)의 성성심성암류연구(醒性深成岩類硏究)의 몇가지 과제(課題)
이대성,Lee, Dai Sung 대한자원환경지질학회 1972 자원환경지질 Vol.5 No.1
In this paper, the author discussed about following subjects for the studies of acidic plutonic rocks in Korea. (1) The criteria of distinction between ortho-origin and para.origin of acidic plutonic rocks using the statistic chemical treatment of lognormal type distribution of H.L. Arhens (1954, 1957, 1963), the normative Q-Ab-Or triangle of O.F. Tuttle and N.L. Bowen(1958), plagioclase twin type of M. Gorai(1952) and optical measurement of ordering degree of plagioclase of K. Uruno(1963), (2) Macroscopic structural classification of migmatites of K.R. Mehnert(l968), (3) Volcano-plutonism comparing the geological features in the younger orogenic belts in Japan and Cordillera in America and (4) The original sources of granitic magma in the viewpoint of isotope geology.
이대성,Lee, Dai Sung 대한자원환경지질학회 1970 자원환경지질 Vol.3 No.1
The purpose of this report is to prepare a data for the economic evaluation on the Goobong Limestone Mine which is located at the south-eastern corner of the Yongchun Quadrangle scaled in 1:50,000. The accessibility from the mine to railroad was considered in two ways. One is to Dodam Station on Central Railway Line and the other is to reach Songjung-ni village which is near Sangyong Station on Hamback Railway Line. The distance of the former way is 26.7km and the later is 24.2km. Geologically the mine is situated near the base of the Greast Limestone Series which strikes generally $N25^{\circ}{\sim}30^{\circ}E$. The series comprises six different formations from older to younger; Pungchon Limestone Formation and Whajol Formation of Cambrian age, and Dongjum Quartzite Formation, Dumudong Formation, Maggol Limestone Formation and Goseong Formation of lower to middle Ordovician age. 82 samples; 48 from Pungchon Limestone Formation, 11 from Dumudong Formation, 15 from Maggol Limestone Formation and 8 from Goseong Formation, were taken from the series in the crossed direction to the general trend of the series as shown in geological map. They were chemically analyzed on the components of CaO, MgO, $SiO_2$, $R_2O_3(Al_2O_3+Fe_2O_3)$ and ignition loss as shown in table 2, table 3, table 4, and table 5. As seen from the tables, among the formations of the series, middle to upper parts of the Pungchon Limestone Formation and middle and upper parts of the Dumudong Formation have chemical composition as available source for the raw material of cement industry, not only that but also the part of the Pungchon Formation was highly evaluated as source for the flux of iron smelting and the raw material of carbide manufacturing because of its high purity of calcium carbonate.
이대성,Lee, Dai Sung 대한자원환경지질학회 1974 자원환경지질 Vol.7 No.4
This report deals with the stratigraphy and chemical composition of calcareous sedimentary rocks of upper Choseon System, Cambro-Ordovician, in the titled area, for the evaluation of limestone resources of cement manufacture.
기체 유량 측정에서 몬테 카를로 모사를 이용한 측정불확도 평가
이대성,양인영,김춘택,양수석,Lee, Dae-Sung,Yang, In-Young,Kim, Chun-Taek,Yang, Soo-Seok 대한기계학회 2003 大韓機械學會論文集B Vol.27 No.12
Monte Carlo simulation(MC) method was used as an uncertainty assessment tool for gas flow measurement in this paper. Uncertainty sources for gas flow measurement were analyzed, and probability distribution characteristics of each source were discussed. Detailed MC methodology was described including the effect of the number of simulation. The uncertainty result was compared with that of the conventional sensitivity coefficient method, and it was revealed that the results were different from each other for this particular gas flow measurement case of which the modelling equation was nonlinear. The MC was comparatively simple, convenient and accurate as an uncertainty assessment method, especially in cases of complex, nonlinear measurement modelling equations. It was noted that the uncertainty assessment method should be selected carefully according to the mathematical characteristics of the measurement.
전라남도(全羅南道) 해남층군(海南層群) 우항리층(牛項里層)에 흡재(夾在)된 흑색(黑色)셰일의 유기지구화학적(有機地球化學的) 연구(硏究)
이대성,시마다 이쿠로,하야시다 노부오,Lee, Dai Sung,Shimada, Ikuro,Hayashida, Nobuo 대한자원환경지질학회 1976 자원환경지질 Vol.9 No.3
In this study, the oil bearing rock-sequence, U-hand-ri Formation (D.S. Lee et al., 1976), was subdivided into three members; the lower, the intermediate and the upper. The lower consists mainly of reddish purple tuff and sandy calcareous shales, the intermediate of an alternation of tuffs, sandstons, calcareous black shales, cherts and limestone and the upper of coarse grained variegated tuff and agglomerate. Oily matter was found from the black shales of the intermediate. Ten samples of black shales from drilled cores, 8 samples of black shales from different outcrops of the member, and 1 sample of grease-like seeping oil from black shales at U-hang-ri coast were chemically analyized. Among them, 9 samples contain remarkable amount of organic carbon (0.96~1.60%) and E.O.M. extract (0.176~0.718%), and mostly the bituminous material is saturated hydrocarbons as well as shown in infared spectroscopic analyses. The elemental analyses of MAE extracts and asphaltenes of some of thoese samples indicate that the transformation of organic material to crude oil is highly progressed. The authors suggest that the seeping oil and oily tinges in black shale layers are the products of natural cracking related with the igneous activities in the area nearby.
옥천대(沃川帶)에서의 화성활동(火成活動) -특(特)히 옥천대동북부(沃川帶東北部)에서의 화성활동(火成活動)-
이대성,김용준,Lee, Dai Sung,Kim, Yong Jun 대한자원환경지질학회 1985 자원환경지질 Vol.18 No.1
The northeastern part of Ogcheon zone which consisted mainly of Cambro-Ordovician arenaceous, argillaceous and calcareous formations and Carboni-Triassic arenaceous and argillaceous formations is delineated as the eastern mass of a thrust fault along Choongju-Moongyong-Cheongsan in the middle of the zone. The present study proposes a geotectonic line, Imgye-Samchog fault(see, figure 1) which divides the northeastern part into two blocks, Hambacksan block in the west and East coast block in the east. The igneous rocks in the Hambacksan block ranging from granite to gabbro are distributed in a symmetrical zones parallel to general direction of Ogcheon zone as follows (Fig. 2 and Table 2). Southeast igneous rock zone: it aligns Jurassic granites in its south and Precambrian leucocratic granites in its north. Central igneous rock zone: it aligns Cretaceous granites in its south and Jurassic granites, and some of diorite and gabbro in its north. Northwest igneous rock zone: aligns Jurassic granites in its south and huge batholithic granodiorite in its north. The distribution of the igneous rocks in the East coast block shows an entirely different features from those of Hanbacksan block. In the southern part of the block they assemble in a narrow area ranging in age from Early Proterozoic, through Middle to Late Proterozoic, Devonian, Jurassic, Cretaceous to Tertiary, whereas, the igneous rocks in the northern part of the block gathered to a restricted area, in ages of Middle Proterozoic and Cretaceous. The assemblage of the igneous rocks in the studied area shows a compositionally restricted, mixed S-type and I-type granites, $^{87}Sr/^{86}Sr$ > 0.706, rare volcanics and shortening with upright folding. These lithologic and structural features suggest that the igneous activity in this part related intimately to Hercynotype Orogeny of Pitcher(1979). Chronological episodes of igneous activity from Early Proterozoic to Early Tertiary in the northeastern part are figured.
중국의 반(反)테러리즘법 제정을 위한 검토: 미국.영국.독일과 비교하여
이대성,안영규,Lee, Dae Sung,Ahn, Young Kyu 한국융합보안학회 2014 융합보안 논문지 Vol.14 No.6
중국은 광대한 영토와 다양한 민족, 종교, 그리고 문화 등이 공존하고 있다. 이러한 중국은 민족, 종교, 자원 등의 갈등으로 인하여 테러리즘 위협에 직면해 있다. 중국은 2011년 10월 29일 제11대 전국인민대표대회 상무위원회에서 반(反)테러리즘 업무강화와 관련한 결정(決定)을 하였다. 이 연구는 중국의 반(反)테러리즘 관련 결정과 미국, 영국, 독일의 대(對)테러리즘 관련법을 분석 및 평가하였다. 미국, 영국, 독일의 대(對)테러리즘 관련법은 크게 사전예방(事前豫防)과 사후진압(事後鎭壓) 측면, 대인적(對人的)과 대물적(對物的) 측면으로 구분하여 제정하였고, 대(對)테러리즘 관련 국가기관의 권한(權限)과 역할(役割)도 재조정(再調整)하였으며, 대(對)테러리즘 관련법 내용도 명시적이고 구체적이며 체계적이라고 할 수 있다. 그러나 중국의 반(反)테러리즘 관련 결정은 사전예방(事前豫防) 진압(鎭壓), 대인(對人) 대물적(對物的), 국가기관(國家機關)의 권한과 역할 등에 대한 한계가 있다. 이 연구에서는 중국이 향후에 반(反)테러리즘 관련법을 제정함에 있어, 외국의 대(對)테러리즘 관련법에 대한 시사점을 검토하였고, 개정된 중국 형법의 테러리즘 관련 범죄에 관한 규정을 반(反)테러리즘 관련 결정과 어떻게 접목할 것인가를 논의하였다. China has vast land, variety of people, religions and cultures. China has faced terrorism threat from the struggles of people, religions and resources. The 11thStanding Committee of the National People's Congress of China decided to strengthen the anti-terrorism action on October 29, 2011. This study compared, analyzed and estimated the counter-terrorism laws of the USA, Britain and Germany thinking about the China's anti-terrorism decision. The counter-terrorism laws of the USA, Britain and Germany are largely composed of previous prevention of terror and oppression of it later. They enacted the laws both for people and property. They also rearranged the power and role of governmental institutes on counter-terrorism. The contents of the counter-terrorism laws are specific, detailed and systematic. But the anti-terrorism law of China has restriction on the power and roles for previous prevention and oppression of terrorism, handling of people and property. This study reviewed the foreign countries' counter-terrorism laws and the way to connect the regulations on terrorism crimes of the revised Chinese criminal law and the anti-terrorism decision, when they enact the anti-terrorism laws in China in the future.
잣나무 인공림의 1차 및 2차 간벌에 따른 입목생장 특성 분석
이대성,정성훈,최정기,Lee, Daesung,Jung, Sunghoon,Choi, Jungkee 한국산림과학회 2022 한국산림과학회지 Vol.111 No.1
본 연구는 잣나무(Pinus koraiensis Siebold & Zucc.) 인공림을 대상으로 1차 및 2차 간벌에 따른 입목의 생장특성을 규명하여 산림시업지침 및 매뉴얼 개발을 위한 기초자료를 제공하고자 수행되었다. 사용된 연구자료는 간벌강도에 따라 설치된 잣나무 인공림 영구고정표준지로부터 수집되었으며, 각 간벌시험림별 4~5회 반복조사된 자료를 토대로 임령 19~43년생 시기의 흉고직경, 재적, 고사목 등 주요 입목 및 임분 현황을 분석하였다. 간벌강도에 따른 일원분산분석에서 개체목의 흉고직경 및 재적 변화는 유의적인 차이를 보였으며(p<0.05), 특히 간벌강도가 클수록 시간이 경과함에 따라 경급분포는 더 오른쪽에 위치하여 입목의 경급이 더 큰 것으로 관측되었다. 흉고직경 정기평균생장량의 경우, 간벌강도가 강하고 간벌 후 경과기간이 짧을수록 생장량이 높았는데, 구체적으로 임령 19~24년생 때 간벌강도별 생장량 범위는 0.48~0.95 cm/year이었다. 이후 2차 간벌에 따른 정기평균생장량도 강도간벌구에서 더 큰 것으로 분석되었으며, 임령 37~42년생 때 간벌강도별 생장량 범위는 0.29~0.67 cm/year이었다. 개체목 재적의 정기평균생장량은 간벌강도에 따라 차이가 있었으며, 흉고직경과 달리 시간이 지나도 크게 줄어들지 않는 경향이 나타났다. 임분 재적은 전반적으로 임분밀도가 밀한 표준지에서 높은 경향이었으나, 임분재적 정기평균생장량은 시기에 따라 무간벌뿐만 아니라 약도간벌이 이루어진 임분에서 더 높은 것으로도 분석되었다. 고사목은 무간벌구에서 가장 많이 발생하였으며, 반복조사가 진행될수록 임분밀도에 따른 고사목 본수 차이는 더욱 증가하였다. 종합적으로 임분밀도가 밀할수록 개체목의 흉고직경과 재적 생장량은 낮아지는 경향이었으나, 적절한 1차 및 2차 간벌이 시행되면 생장량은 다시 촉진되었다. This study was conducted to provide basic information for the development of silvicultural guidelines and manuals. This was achieved through analysis of tree and stand characteristics according to the first and second thinning in Korean white pine plantations. Data were collected from permanent plots installed at Korean white pine plantations according to thinning intensity, and residual tree and stand variables, including diameter at breast height (DBH), volume, and mortality at age 19-43, were analyzed using data repeatedly collected in 4-5 measurements by experiments. According to one-way variance of analysis, tree DBH and volume were significantly different according to thinning intensity (p<0.05). DBH distribution was skewed to the left side over time as thinning intensity was heavier. Thus, tree DBH values were larger in heavy thinning plots with increased age. The periodic annual increment (PAI) of DBH was higher with heavier thinning intensity and fewer years after thinning. The PAI range by thinning intensity was 0.48-0.95 cm/year at age 19-24. In addition, the PAI increased in heavy thinning plots after the second thinning; The PAI range by thinning intensity was 0.29-0.67 cm/year after the second thinning at age 37-42. The PAI of tree volume differed according to thinning intensity, and the PAI value did not decrease obviously, in contrast to the pattern of the DBH PAI. Stand volume was generally higher in high-density stands, and the PAI of stand volume was high in unthinned and light thinning plots. Mortality was highest in unthinned plots, and the differences in mortality according to thinning intensity increased over time. Consequently, the growth of DBH and tree volume was lower as stand density increased, but this growth was facilitated with appropriate first and second thinning operations.