• The Journal of Engineering Geology
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• v.16 no.2 s.48
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• pp.161-169
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• 2006

A short seismic reflection survey was performed to map the basement and the upper units in the Gomso Bay. This research was mainly aimed at clarifying the basement by improving the signal-to-noise ratio in data processing steps. The strategies employed in this research included enhancement of the signal interfered with large-amplitude noise, through pre- and post-stack processing such as time-variant filtering, bad trace edit, careful muting after f-k filter and NMO correction. The subsurface structure mapped from this survey mainly consists of the top of basement and the upper three units, which were well correlated to the result from the previously conducted MT survey. Furthermore seismic section clarifies approximately 30m deep subhorizontal event of the top of the basement, which was not shown in the central portion of the MT section due to data qualify.

• 보존과학연구
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• s.32
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• pp.171-183
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• 2011

In this study molecular genetic analysis was carried out on 4 human skeletal remains from Osuri, Buyeo. We showed that real-time PCR is the method of the choice to assess the initial number of genuine ancient DNA molecules. Human mitochondrial DNA quantification was accomplished by the real-time PCR for the cytochrome b gene of the mitochondria. Histological results proved to be a good potentiality for biochemical analysis using biomolecule. The level of specimen's preservation state was proved that level of quantitative result was BO-04, BO-01, BO-03, BO-02. Continually, we showed that biochemical and biomolecule results for the level of preservation state were similar. This study will be useful to important material for predicting biochemistry and biology analysis of the ancient bone.

• Communications of Mathematical Education
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• v.23 no.3
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• pp.545-562
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• 2009

This study is trying to analyze characteristics of mathematical thinking processes of the mathematical gifted students in an objective and a systematic way, by using "Protocol Analysis Method"and "Problem Behavior Graph" which is suggested by Newell and Simon as a qualitative analysis. In this study, four middle school students with high achievement in math were selected as subjects-two students for mathematical gifted group and the other two for control group also with high scores in math. The thinking characteristics of the four subjects, shown in the course of solving problems, were elicited, analyzed and compared, through the use of the creative test questionnaires which were supposed to clearly reveal the characteristics of mathematical gifted students' thinking processes. The results showed that there were several differences between the two groups-the mathematical gifted student group and their control group in their mathematical talents. From these case studies, we could say that it is significant to find out the characteristics of mathematical thinking processes of the mathematical gifted students in a more scientific way, in the sense that this result can be very useful to provide them with the chances to get more proper education by making clear the nature of thinking processes of the mathematical gifted students.

• Journal of the Earthquake Engineering Society of Korea
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• v.12 no.1
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• pp.29-42
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• 2008

The objective of this study is to investigate the effects of rigid end platens on effective stresses in soil mass during consolidation. The friction between the teeth of top cap/base pedestal and the specimen during consolidation decreases the radial and tangential effective stresses in RC specimens. However, it is unpractical to measure the effective stresses in the soil specimen. Two approaches were used to evaluate the state of stress in RC specimens during consolidation. First, careful measurements were made of small strain shear modulus, $G_{max}$ in specimens with carefully controlled void ratios and stress histories, to infer the state of stress. And second, a finite element analysis was performed to analytically evaluate the effect of various soil parameters on the state of stress in RC specimens during consolidation. By combining these experimental and analytical results, an example was performed to predict the average state of stress in RC specimens during consolidation.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.213-213
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• 2019

소하천으로 지정된 작은 규모의 하천은 '소하천정비종합계획'에 따라 지정된 빈도 유량 내에서 범람에 의한 침수 피해를 예방하기 위해 주기적으로 정비되고 있다. 소하천으로 지정되지 않은 하천의 경우에는 하천 정비와 관련된 법이 없으므로, 하천 정비 및 하천 관련 자료들이 미흡하다. 경상남도 양산시 물금읍 증산리의 증산 배수펌프장 유역은 2016년 10월 5일 태풍 '차바'의 호우로 인해 그 일원(농경지 및 주거지)이 침수되었다. 증산 배수펌프장 유역에는 소하천으로 등록되지 않은 새도랑천과 새도랑천의 시점부로 합류되는 이름 없는 하천(무명천)이 있고, 해당 하천의 단면 및 침수 모의에 필요한 자료가 없거나 오차가 큰 경우가 있다. 본 연구의 목적은 침수 모의에 필요한 자료들이 부족한 소규모 하천 유역에 대하여 기초 자료를 구축하는 과정과 이를 이용한 침수 모의 결과를 제시하는 것이다. 증산 배수펌프장 유역에 대해 침수 모의 시 필요한 자료는 강우량, 펌프 유량, 펌프장 유수지 제원, 지반고, 하천 단면, 농수로 단면, 인근 도시 지역의 하수관거 제원 등이다. 증산 배수펌프장 유역은 유역 내 하천수의 대부분을 펌프장을 통해 배수가 가능하다. 이와 같은 유역특성을 활용하여 유수지 제원, 하천 단면, 지반고 자료는 유수지 및 하천에 있는 물을 배수해서 무인항공기 측량으로 구축하였다. 증산 배수펌프장 유역의 침수모의는 준2차원 침수 모의가 가능한 CHI 사의 PCSWMM을 이용하였다. 침수 모의를 위한 모형에서 펌프장 모의 시 입력한 수심-양수량 관계 자료는 펌프 가동 일지를 참고하여 시행착오법으로 추정하였다. 침수 모의 결과 평균 침수심은 0.226 m, 최대 침수심은 0.800 m, 침수면적은 $0.562km^2$이다. 태풍 '차바'로 인한 침수 상황에 대하여 탐문조사 결과는 침수심이 약 0.2 ~ 0.3 m이었으며, 모의된 평균 침수심이 조사결과에 부합하는 것으로 판단된다. 증산 펌프장을 통하여 양수된 양에 대한 기록 자료와 모의 결과의 차이는 펌프 모의 운영 종료 시점까지 약 0.5%이다. 본 연구의 검증 자료는 인위적인 펌프 운영 일지 및 침수 상황의 사진으로 검증했다는 한계가 있다. 그러나 무인항공기 측량 및 현장조사, 펌프 운영 일지를 활용한 수심-양수량 관계의 추정으로 생산된 입력자료를 이용하여 모의한 결과는 실제 상황에 부합하는 결과가 도출된 것으로 판단된다.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.426-426
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• 2017

국가간 지역간 물의 이동을 개념화하여 물 부족 현상을 정치경제학적 관점에서 접근하려는 가상수(virtual water) 연구가 국제적으로 진행되고 있다. 가상수를 양적 측면에서 산정하여 정확한 물 수지를 파악하면 수자원에 대한 국가의 계획과 전략 수립에 매우 유리한 여건이 조성된다. 우리나라의 국가계획인 수자원장기종합계획은 국가 간의 물 이동을 고려하지 않고 국내에서 발생하는 용수의 수요와 공급 측면만을 산정하고 있다. 그러나 현재에도 국내에서 소비하는 농산물과 축산물의 상당량은 수입에 의존하고 있으며, 향후 국제교역과 FTA의 확대 등으로 그 의존도는 더욱 증대될 것으로 추산된다. 따라서 국가 간 물 이동에 대한 양적 규모를 파악하여 국가전략을 수립하는 기초자료로 활용하기 위한 연구가 필요하다. 이에 본 연구에서는 산업연관분석법을 활용하여 국내 산업별(제조업, 서비스업) 가상수를 산정하여 국가 수자원계획 수립에 필요한 기초자료로서 제공하고자 한다. 산업연관분석(Inter-industry analysis)은 산업연관표를 바탕으로 산업 간의 상호 연관관계를 수량적으로 파악하는 방법이다. 이를 가상수 산정에 활용하여 직접수와 간접수를 포함한 물의 전체 사용량을 산정할 수 있다. 본 연구에서는 각 산업의 용수량을 총 생산량으로 나누어 물 강도($m^3$/원)를 계산하고, 생산유발계수와 최종수요를 곱하는 방식으로 산업별 가상수량을 산정하였다. 산업별 가상수 산정 결과는 경제총조사의 용수비와 산업연관표의 생산유발계수를 적용하였으며, 제2차 산업인 제조업 분야의 연간 가상수량은 60.4억 $m^3$, 제3차 산업인 서비스 분야의 가상수량은 연간 43.1억 $m^3$으로 분석하였다. 또한 향후 10년의 OECD 기술수준 제품군별 무역수지 전망을 고려한 결과, 기술수준 중 및 고 기술제품의 가상수 수출량이 2020년에는 2010년에 비해 약 3배 증가하는 것으로 산정하였다. 이와 같은 방법으로 산정된 산업별 가상수는 각 산업의 물 사용량을 추정하고 산업 전반의 수자원 활용도를 파악하는데 이용 가능하다. 더불어 국제 환경 및 기후변화가 반영된 가상수 시나리오 연구를 통해 장래 용수 수요변화예측 등 효과적인 물 관리 정책 수립에 기여할 수 있다.

• Journal of Korea Port Economic Association
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• v.23 no.2
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• pp.63-86
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• 2007

Historically, government has facilitated logistics by building the airports, the seaports, the rail and transit lines, subsidized their operations where necessary, and established the basic laws and regulations pursuant to which the industry serves the public. In the late 1990s and early 2000s, Korean government began to prepare the basic laws of logistics and nowadays it has tried to refine national logistics laws to reflect contemporary industry conditions and evolving ideological attitudes. The policy objectives governing logistics regulation have changed significantly since 2000. This article traces the current status of the Korean logistics laws which regulate one of the nation's most important industries and suggests certain amendment of current laws.

• The Journal of the Korea Contents Association
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• v.19 no.6
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• pp.1-9
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• 2019

The purpose of this study is to examine the system of the Jeokbyeok-ga's version using the Computer analysis technique of bibliographies and to examine the achievements of the Jeokbyeok-ga's version studies. First, in order to provide basic data for analysis, a raw corpus was constructed for 46 species of Jeokbyeok-ga. Through this, the common narrative units of the Jeokbyeok-ga were identified as 5 layers, and thus 146 individual paragraphs could be extracted. Based on the encoded corpus, we tried to measure the similarity and the distance between the two. Next, we applied the Multidimensional scaling method, Hierarchical cluster analysis and Cladistic analysis method of the system to confirm the distribution of versions group and it was possible to visually grasp the distance between versions and the system of the work. As a result of analyzing Computer analysis technique of bibliographies, it was found that version's group of the Jeokbyeok-ga was divided into a Wanpan(完板) series and Changbon(唱本) series. Also, it was possible to examine the influence relationship between the Pansori's traditions and transmission.

• The Journal of the Convergence on Culture Technology
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• v.5 no.1
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• pp.107-112
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• 2019

Seokjeong LeeJeongzic(1841~1910) is a representing scholar in Honam Confucianism and master of three classes, caligography, painting. Seokjeong's calligraphy activities include not only creative activities, but academic activities as calligraphers and critics. Seokjeong uses Wang Hui-ji as an example of calligraphy. And if hard beauty is mastered truly and skillfully and skillfully, it reaches harmony level by itself and is Bugochangsin. Meanwhile, in "Geseokyoulsanglon5go8su" "Yeonseoksanbangmijeungsigo" there is a 5ungosi8su who criticizes Chinese calligrapheres. There are including WangHuij criticized their calligraphy by selecting 11 people in China. Also wrote reviews for "WonkyoJinjeok" "SonghaJinjeok" "ChangamSeocheub". And here, he made his own calligraphy theory by making calligraphy comments about calligraphy artists such as Wonkyo, Songha, Changam in Korea.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.525-527
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• 2019

Cardiac arrest is a series of conditions occur when the heart is stopped, regardless of the cause. one of the only ways to save a patient's life in the event of cardiac arrest is cardiopulmonary resuscitation, which is very important beacause it can maintain circulation through this technique, and high-quality CPR affects the survival rate and neurological prognosis of the patient. For infant cardiopulmonary resuscitation, use two finger to compress the chest. Hower, this method can be diffcult to reach the chest commpressions recommended by the American Heart Association because of the anatomically increased fatigue of the fingers and diffculty of vertical pressure. The study aims to verify the effects of new chest compressions in the implementation of chest compressions during infant cardiopulmonary resuscitation. The study also showed singnificant differences in chest depth and average rate of pressure(p<0.001). Based on the results of this study, we can see that the accuracy of the new chest compressions during infant cardiopulmonary resuscitation is increased, and the depth of chest compressions is improved, improving the quality index of chest compressions.