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RISS 인기검색어
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- 저자 : 이덕기 ( Deok-gi Lee ) (검색결과 4 건)
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이덕기,Lee, Deok-Gi 한국기술사회 2008 技術士 Vol.41 No.4
The different result and response of the earthquakes, occurred consecutively at China and Japan in May and June. respectively, is suggestive of the importance of preparedness against earthquake disaster. We learned lesson, although indirect, that the earthquake early warning. earthquake-resistant design, and people's concepts on earthquake can greatly reduce the earthquake hazards. The more preparedness we have in present, the less hazards we will experience for future.
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이덕기(Lee, Deok-Gi),유형근(Yu, Hyeong-Keun) 학습자중심교과교육학회 2013 학습자중심교과교육연구 Vol.13 No.6
본 연구는 중·고등학생이 자신의 행동을 능동적으로 조절하여 인터넷 게임중독을 사전에 예방하기 위한 교육과정을 구안하는데 목적이 있으며 교육과정을 구안하기 위한 절차는 다음과 같다. 첫째, 선행연구고찰을 통하여 인터넷 게임중독 예방 교육 과정의 내용영역과 영역별 목표의 초안을 마련하였다. 둘째, 인터넷 게임중독 전문가를 대상으로 2차례의 자문을 받아 내용영역을 확정하였다. 셋째, 인터넷 게임중독 전문가를 대상으로 2차례의 델파이 방법을 활용하여 교육과정의 내용영역별 목표를 확정하였다. 넷째, 문헌연구, 자문, 델파이 조사 결과를 바탕으로 인터넷 게임중독 예방교육과정을 구안하였다. 연구결과 인터넷 게임중독 예방 교육과정의 내용영역은 개인영역, 또래영역, 인터넷 특성영역으로 도출되었으며 영역별 목표를 요약하여 제시하면 다음과 같다. 개인영역에서는 학생들이 인터넷 게임중독의 심각성을 인식하고 자신의 대처행동에 대한 이해를 높여 심리·정서적 안정과 건강한 일상생활의 적응을 도모하는 내용이, 또래영역에서는 또래로부터 긍정적인 사회적 지지를 얻어 원만한 또래관계를 형성하는 내용이, 인터넷 특성 영역에서는 인터넷 게임의 긍정적 · 부정적 특성 이해와 적절한 활용을 돕는 내용이 각각 도출되었다. 본 연구는 중 고등학생들의 인터넷 게임중독 예방을 위한 교육과정을 도출함으로써 보다 체계적이고 종합적인 예방을 할 수 있는 기초를 제공했다는 점에서 의의가 있다. The purpose of this study is to construct guidance curriculum which prevent students from internet game addiction by helping students control themselves. Research procedure is as the followings. First setting the domains and the factors of the curriculum is conducted through preceding research analysis relevant internet game addiction. Second setting the educational objectives of curricular domains is conducted using delphi technique for curricular content objectives. Finally curriculum contents are organized based on results of reference research and twice delphi survey and equivocal or inappropriate contents are modified referring to the expert group. The curriculum of this study is divided into 3 areas - individual peer groups and internet specialization. In individual area the educational objective is helping students realize the seriousness of internet game addiction and recover emotional stability in normal life. In peer groups areas the educational objective is improving peer relationships using peer support. Peer support can help students have the positive support of peers. Lastly in internet specialization areas the educational objective is understanding the positive and negative effects to make proper use of internet games. In conclusion from an educational point of view considering personal and social factors internet game addiction prevention program need to be conducted continuously and systematically. Prior to implement a quality program textbook and teaching-learning materials need to be developed to support educational contents and activities as a part of the materialization for prevention curriculum operation.
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충격기류식 여과집진장치의 운전조건 변화에 따른 적정 탈진주기 및 탈진압력 설정
이덕기 ( Deok-gi Lee ),임우택 ( Woo-taik Lim ),조재환 ( Jae-hwan Cho ),최금찬 ( Kum-chan Choi ),신현무 ( Hyun-moo Shin ),장성호 ( Seong-ho Jang ),서정민 ( Jeong-min Suh ) 한국환경과학회 2018 한국환경과학회지 Vol.27 No.6
In this study, using coke dust from ironwork, the pulse pressure on a pulse air jet bag filter was investigated considering the influence of the pressure loss due to filtration velocity and pressure intervals. The research on the optimal pulse pressure prediction of a pulse air jet type bag filter using coke dust showed the following results. Pressure loss volatility produced by the pulse pressure under low dust concentration(0.5, 1 g/m<sup>3</sup>) and low face velocity(1.25 m/min) was less than 10 mmH<sub>2</sub>O. This suggests that the pulse pressure has a low impact on the pressure loss. In contrast, pressure loss volatility under high dust concentration(3g/m<sup>3</sup>) and high face velocity(1.75 m/min) was 25 mmH<sub>2</sub>O. Therefore, pulse pressure with high dust concentration and high face velocity has a strong influence on the pressure loss volatility, compared to the condition of low dust concentration and low face velocity. The optimal pulse pressure of inlet dust concentration(0.5 g/m<sup>3</sup>) was 6 kg/cm<sup>2</sup> under the same face velocity(1.75 m/min). As concentration increased from 1 to 2 g/m<sup>3</sup>, the pulse pressure gradually reached 5 kg/cm<sup>2</sup> thus indicating that the pulse pressure(5 kg/cm<sup>2</sup>) is pertinent at a high concentration(3 g/m<sup>3</sup>) The pulse intervals: 20, 25 and 30 sec, which are relatively longer than 10 and 15 sec, corresponded to high pressure loss volatility produced by the pulse pressure. Furthermore, low pressure loss volatility was noted at 5 kg/cm<sup>2</sup> of the overall pulse pressure.
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