• The Science & Technology
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• v.32 no.3 s.358
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• pp.24-26
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• 1999

인류문명의 발달사를 보통 석기, 청동기, 철기시대로 구분하는데 그렇다면 앞으로 다가올 21세기 이후는 어떤 시대가 될 것인가. 주기율표를 따져보면 불을 일으킨 부싯돌이나 돌도끼의 주성분이 실리콘(규석)이기 때문에 석기시대를 실리콘시대로 볼 수 있으며 청동기를 거쳐 철기시대인 현대엔 다시 실리콘시대로 돌아와 탄소에서 일단 대단원의 막을 내리게 될 것으로 본다. 탄소는 21세기에도 과학기술의 핵심 원소로 중요한 역할을 담당할 것이다.

• KOMUNHWA
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• no.55
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• pp.127-156
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• 2000

• Korean Architects
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• no.10 s.223
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• pp.42-47
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• 1987

• Korean Architects
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• no.11 s.224
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• pp.48-53
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• 1987

• Journal of the Korean Society for information Management
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• v.14 no.1
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• pp.223-254
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• 1997

The goal of this paper is mainly to review and summarize the theory of cataloging. This artical reviews the theortical background of cataloging. First, the objectives and function of the library catalog was analyzed. Second, According to this methodology was researched the Cutter's theory of 'convenience of the public' on the cataloging, Osborn's 'the Crisis of Cataloging' (legalist theory of cataloging, perfectionism theory bibliographic theory and pragmatic theory) and Lubetzky's the theory of 'Cataloging Rules and Principles' and the last Houten' s 'In the Iron Age of Cataloging' theory.

• Korean Architects
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• no.8 s.221
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• pp.66-71
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• 1987

우리나라에서 선사시대라고 하면 대체로 구석기 신석기시대를 비롯하여 청동기와 초기철기시대를 포함한다고 말할 수 있겠으나 그 시대의 건축을 논함에 있어서는 통틀어 원시시대의의 건축으로 표현하고자 한다.

• The Korean Journal of Quaternary Research
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• v.14 no.1
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• pp.33-48
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• 2000

Vegetation disturbance history of the Korean Peninsula from the Palaeolithic Age to the Koryo Dynasty (1392) has reconstructed by the use of various data sources. Active vegetation disturbance, which has begun during the Neolithic Age, seems to be more widespread on lowland and coastal areas in the early stages, but later expanded into inland areas. The ploughing of a field and the selective cutting of certain trees, such as oak trees, nettle trees and pine trees are noticeable, and eventually caused deforestation during the Bronze Age. The use of iron tools of the Iron Age has enabled the forest clearing to develope the dry fields. During the Three Kingdoms period (BC 57∼AD 918) extensive deforestation has maintained for the development of cultivated fields, as well as other activities, such as timber, lumbering, production of iron farm implement, ploughing by cattle. The encouragement of disafforestation on mountain slope and creation of terraced field during the Koryo Dynasty (918∼1392) has caused the deforestation over the country, along with the consumption of large amount of wood and timber for fire-wood, ship-building, mining, xylography and so on.

• Korean Journal of Heritage: History & Science
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• v.51 no.4
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• pp.224-233
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• 2018

Thirty-three Early Iron Age bronzes at the sites of Hoam-dong in Chungju and Cheongsong-ri in Buyeo were investigated in order to study the manufacturing technique and the provenance of lead. Chemical analysis using X-ray fluorescence showed that 33 bronzes consist of copper(Cu), tin(Sn) and lead(Pb) served as major elements. Major and minor elemental analyses by EPMA were performed on two mirrors and 2 weapons of the bronzes investigated. The results shows that bronze mirrors from Chungju and Buyeo were high-tin bronzes(> 30 wt%). And 20% of tin and 5% of lead were founded in bronze weapons. Iron, zinc, arsenic, silver, nickel, sulfur and cobalt detected in four bronzes as minor and trace elements. The four bronzes were alloyed considering their function and were not heat treated after casting due to their high tin content. Lead isotope analysis using TIMS indicates that thirty-three bronzes were distributed southern Korea peninsula except Zone 1. As a result, lead raw materials came from various regions in Korean Peninsula not from Gyeongsang-do regions. The manufacturing techniques of bronze ware generalized at this age, and bronze was produced in various sites using raw materials from various sources.

• The Science & Technology
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• v.32 no.7 s.362
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• pp.85-85
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• 1999

인류가 처음 이 땅에 나타난 구석기시대엔 '동굴'에서 살다가 불을 발견하면서 '막집'을 짓고 살았으며 청동기 철기시대에는 '움집'을 짓고 살아왔다. 이때부터 우리 선조들의 집짓기 문화는 비약적으로 발달하여 집이 지상으로 올라오고 '초가집'과 '기와집'이 등장하게 된다. 터를 닦고 기둥세우기, 문의 구조, 구들과 마루, 지붕의 곡선과 서까래 등을 살펴보면 자연의 섭리를 따르는 환경보전정신과 과학기술이 응어리져 있음을 발견하게 된다.

• Journal of architectural history
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• v.16 no.4
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• pp.37-56
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• 2007

The '凸'-shaped, the '呂'-shaped and the hexagonal-shaped pit houses were excavated at the Youngdong area, some location along the upper the Imjin River and Han River between the Iron age and the kingdom of Hanseong Baekje. The aim of this study is to analyze various structural system and developement of the pit house with rectangular plan. It is considered a matter in all its aspects which are plan, scale, aspect, pillar holes, carbonized wood and several traces. These pit houses removes the pillar on the inside or it reduces to secure a wider space, it pursued the chamfered corner, the change of the front, the entrance fixed. Also these adopted diverse structural systems(the chuandou structure, the structural system of columns and beams and a bearing wall). But in the course of time, the Korean wooden architecture is developed gradually the structural system of columns and beams. It is presumed the result that overcome the limit with the close space and pursue the flowing space and compose a group of organizable buildings.