• The Safety technology
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• no.169
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• pp.12-14
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• 2012

수도 서울의 정중앙 중구. 이곳엔 서울시청을 비롯해 주요 대기업 본사와 유명 호텔, 복합 쇼핑몰 등이 대거 밀집해 있다. 때문에 중구에는 비즈니스의 중심지, 쇼핑의 천국 등의 호칭이 늘 따라붙는다. 하지만 앞으로는 이런 중구에 또 하나의 호칭이 더해질 것으로 보인다. 바로 '주거문화 중심지'가 그것이다. 현재 중구 곳곳에선 뉴타운, 재개발사업 등이 추진 중인 가운데 미래형 주상복합 건물들이 속속 들어서고 있다. 이런 변화의 중심에는 두산중공업이 시공하고 있는 '청계천 두산 위브 더 제니스'가 있다. 이곳은 신당역을 옆에 두고 있는 것은 물론 거대 쇼핑 단지인 동대문도 지척에 두고 있다. 또 일품 산책로인 청계천과도 가깝다. 실로 문화와 환경이 어우러진 일등급 주거지의 탄생이 예고되고 있는 것이다. 그래서일까? 이곳을 시공하고 있는 두산중공업의 자부심은 남다르다. 모든 현장 임직원이 빈틈없는 안전관리로 최고의 작품을 만들겠다는 의지를 불태우고 있는 것이다. '안전'으로 중구의 신 주거명작을 빚고 있는 이곳 현장을 찾아가 봤다.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.24 no.4
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• pp.26-34
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• 1979

A new barley cultivar "Doo San #781" has been developed from combination of Seijo #17 and Piroline at Sacheon Experiment Station, Doo San Poongsan Co. This cultivar is early, medium culm, lodging resistant and panicle numbers type. Also, yields of this cultivar were increased at all experiment locations regardless paddy-and up-lands cultivations except Cheju districts, thus indicating the broad adaptibility.ptibility.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.04a
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• pp.178-179
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• 2022

This study evaluated the crack reduction characteristics of concrete by type of fiber reinforced concrete. As a result of the experiment, it was shown that the fluidity decreased due to the mixing of the fiber reinforcing material. The higher the amount of fiber reinforced material used, the higher the decrease in fluidity. It was confirmed that the tensile strength was improved by the mixing of the fiber reinforcing material. The selection of fiber reinforcement has a great influence on the crack reduction effect.

• Asia Marketing Journal
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• v.4 no.3
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• pp.86-99
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• 2002

2002년 5월 29일 두산 주류 BG의 마케팅 부에서 열심히 일하고 있던 이과장은 최이사의 호출로 자료를 준비 하고 있다. 최이사는 성공적인 시장 진입을 한 산소주의 새로운 마케팅 전략에 골몰하고 있었다. 참이슬이 거의 독점하고 있었던 소주시장은 두산의 산소주 출시 이후 그 어느 때 보다 역동적이고 변화의 가능성을 보이고 있었다. 최근 들어 최이사는 증가세를 보이던 산소주의 M/S가 정체시점에 들어갔다는 것에 대한 보고를 받고 산소주의 성공을 극대화 할 수 있는 새로운 전략이 필요하다고 판단하였던 것이다. 그래서 그는 산소주 마케팅 담당인 이과장에게 전화를 걸어 산소주의 Key Sucess Factor를 정리요약해서 보고하고 지금의 현시장에서의 산소주의 자료 또한 정리보고 하도록 지시하였다. 이에 이과장은 과거 산소주의 출시전 시장상황서부터 출시까지의 산소주의 STP Strategy을 중심으로 마케팅 전략 자료를 정리하여 최이사의 방문을 노크하였다.

• Economic and Environmental Geology
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• v.47 no.3
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• pp.205-217
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• 2014

As Mt. Backdu is expected to erupt, the social and economic impacts of the eruption on the Korean peninsula as well as on the world become a research topic of interest. If the volcano erupts, South Korea can be directly impacted by volcanic ash, which will bring out secondary damages in various ways. Given that the direct damage is a basis to estimate indirect and secondary damages, this paper was to review a method to estimate direct damages, called catastrophe risk models, and estimate the direct damages of available eruption scenarios of Mt. Baekdu. Based on the results, the damages by volcanic ash will occur mostly around Gangwon province if the Mt. Backdu erupts. Thus the inventory lists and their damage functions of Gangwon provinces were collected. In particular agricultural and forestry products were surveyed based on the land use. Direct damages were estimated using volcanic ash distribution of eruption scenarios, inventory information and their damage functions. In result, a scenario in winter caused the damage of 299.8 billion KRW (20.4% of total agricultural production in 2010) and 28.9 billion KRW (9.0% of total forestry production in 2010) in agriculture and forestry, respectively. The damages in agriculture was larger, and it is due to the damage functions which show the agricultural products are more vulnerable to volcanic ash than forestry products. Also the agricultural production (1,471.7 billion KRW in 2010) are more than 4.5 times the forestry production (322.3 billion KRW in 2010) in Gangwon province. Inje and Gangnung had the most damages in the scenario in winter. Inje had the most damage due to the thick ash deposit (8.5 mm in average) despite the low production. On the other hand, Goseong had a low damage compared to the ash thickness larger than 20mm, owing to the low production. The direct damage estimated through this process can be used to estimate indirect damages.

• Korean Journal of Remote Sensing
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• v.34 no.6_4
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• pp.1503-1517
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• 2018

Mt. Baekdu is a stratovolcano located at the border between China and North Korea and is known to have formed through its differentiation stage after the Oligocene epoch in the Cenozoic era. There has been a growing interest in the magma re-activity of Mt. Baekdu volcano since 2010. Several research projects have been conducted by government such as Korea Meteorological Administration and Korea Institute of Geoscience and Mineral Resources. Because, however, the Mt. Baekdu volcano is located far from South Korea, it is quite difficult to collect in-situ observations by terrestrial equipment. Remote sensing is a science to analyze and interpret information without direct physical contact with a target object. Various types of platform such as automobile, unmanned aerial vehicle, aircraft and satellite can be used for carrying a payload. In the past several decades, numerous volcanic studies have been conducted by remotely sensed observations using wide spectrum of wavelength channels in electromagnetic waves. In particular, radar remote sensing has been widely used for volcano monitoring in that microwave channel can gather surface's information without less limitation like day and night or weather condition. Radar interferometric technique which utilized phase information of radar signal enables to estimate surface displacement such as volcano, earthquake, ground subsidence or glacial movement, etc. In 2018, long-term research project for collaborative observation for Mt. Baekdu volcano between Korea and China were selected by Korea government. A volcanic specialized research center has been established by the selected project. The purpose of this paper is to introduce about remote sensing techniques for volcano monitoring and to review selected studies with remote sensing techniques to monitor Mt. Baekdu volcano. The acquisition status of the archived observations of six synthetic aperture radar satellites which are in orbit now was investigated for application of radar interferometry to monitor Mt. Baekdu volcano. We will conduct a time-series analysis using collected synthetic aperture radar images.

• Korean Deer Journal
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• no.4
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• pp.6-7
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• 1988

• Journal of the Korean earth science society
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• v.34 no.6
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• pp.470-478
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• 2013

There have been a number of observed precursors of volcanic activities- such as volcanic earthquake, surface inflation, specific volcanic gas emission, temperature of hot spring- at Mt. Baekdusan since 2002. We identified the increase of the volume of magma chamber beneath Mt. Baekdusan as we observed an inflation trend of vertical and horizontal surface displacement around Cheonji caldera lake by using precise leveling data from 2002 to 2009. The surface displacement trend changed to deflation in 2010, and the trend changed to inflation again after a while. Utilizing the data of inflated surface (46.33 mm) on the northern slope of Mt. Baekdusan from 2002 to 2003, we calculated the volume change of magma chamber beneath the Mt. Baekdusan. The volume change was about 0.008 $km^3$ ($7.7-8.0{\times}10^6m^3$) from 2002 to 2003. It indicated that a new magma (0.008 $km^3$) injected to the magma chamber 5 km below Mt. Baekdusan.

• Journal of the Mineralogical Society of Korea
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• v.27 no.4
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• pp.243-249
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• 2014

We conducted investigations into the morphological characterstics and chemical compositions of the microlites included in the obsidians from the North Korean side Baekdusan (NK) and in the obsidian artefacts from the Busan Gadeokdo prehistoric site (BG). The morphology of the microlites from the NK can be divided into three groups, and trichite-acicular and trichite-asteroidal types are predominant. On the other hand the microlites from the BG show various morphological features such as acicular, margarite, lath, and asteroidal types. Silicate microlites from the NK are mostly of Ca-pyroxene compositions (hedenbergite to augite), whereas those from the BG are mostly of biotite (annite) with small amount of clinopyroxene (ferrosilite). It is well understood that the microlites from the NK are different from those from the BG in terms of the morphology, mineral content and mineral composition. Thus the obsidian aretefacts from the Busan Gadeokdo prehistoric site seem to have no genetical relationship to the obsidians from the Baekdusan.

• Journal of the Korean Geographical Society
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• v.47 no.2
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• pp.159-178
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• 2012

Since the suggestions on the paleo-glacial landforms in and around the northern high mountains of Korean Peninsula by some western and Japanese scientists in the early 1900s, the likelihood of the glacier existence in the Baekdusan over the Quaternary glacial period has been had in common among most of the Korean geomorphologists. In the other meaning, some have cast doubt on the likelihood the paleo-glacier in the Baekdusan because there has been no unequivocal evidences for the glacier such as striation, moraines, except morphologic characteristic landforms possibly related to glacier. Here we show some evidences for the existence of the glacier in the Baekdusan and their cosmogenic $^{36}Cl$ exposure ages over the late Quaternary and would put forward a model on the Quaternary landscape evolution of the Baekdusan, with a focus on the relationship of 1000 AD explosive eruption and the glacial landforms. The exposure ages constrained by cosmogenic $^{36}Cl$ abundances of the col surface of the western slope located below the glacier yield 46~26 ka, which is inphase with the last glacial period. Given all the evidences above, we can draw a conclusion that the glacier existed on the Baekdusan over the late Quaternary and the style of glaciation changed from extensive ice cap through valley glacier to restricted cirque.