• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.101-107
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• 2003

해가 지면서 지표면이 냉각되고 지표면의 냉각은 지표부근의 대기를 냉각시켜 상부의 대기보다 차가워지면서 대기의 상태가 안정 상태가 되는데 이 때를 접지 역전층이라고도 하고 야간 경계층이라고도 한다. 야간 경계층은 다음 날 해가 뜨기 전까지 계속 지속되는데 그 고도는 지상 수백m까지 확장될 수도 있다. 이러한 현상은 배출된 대기 오염 물질이 형성된 역전층에 의해 확산이나 수송이 방해를 받게된다. 역전층 상태에서의 오염물질의 배출은 직접적으로 영향을 미치지 않으나, 일출 이후 일사에 의한 지표의 가열로 역전층이 파괴되면서 역전층위의 고농도의 오염물질이 지상으로 유입되어 지표부근에 고농도의 오염을 유발할 수 있다. (중략)

• Journal of Digital Contents Society
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• v.10 no.2
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• pp.299-307
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• 2009

It is well-known that the scenic visibility achieved in our naked eyes is related with the quality of aerosol condition which is composed of primary and secondary air pollutants. In recent, the IMPROVE organization in U.S.A. has developed two algorithms to estimate the visible length depending on the elements of air pollutant. Using these algorithms, we are to represent the condition of aerosol quality with the well-known scenic images of the observing area so that any one that have no sufficient chemical knowledge may feel and understand the level of air pollution in visuality.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.295-296
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• 2003

1990년대 이후 활발히 진행되고 있는 국내 $O_3$ 연구는 대부분 서울 지역에 국한되어 있다. 그러나 대도시의 $O_3$ 농도가 대도시 내에서의 생성 및 소멸에만 기인하는 것이 아니라 대기 운동과 관련된 수평 및 연직 수송에 의한 영향도 중요한 요소임이 많은 연구에서 밝혀지고 있다. 따라서 청정 대기 상태에서 $O_3$의 배경 농도 특성에 대한 연구의 필요성이 증가하고 있다 (서명석 등, 1995). 울릉도 태하는 우리나라의 배경 농도 지역으로 청정 대기 상태에서의 $O_3$ 농도 특성을 연구하기 좋은 지역이다. (중략)

• 한국공간정보시스템학회:학술대회논문집
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• 1999.06a
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• pp.85-92
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• 1999

본 연구는 초고속통신망하에서 GIS를 이용하여 상시 자동대기측정망으로부터의 대기정보에 대한 데이터베이스를 구축하고 1시간 간격으로 일반사용자가 특정지역의 대기상태 및 예경보 현황을 인터넷 서비스 받을 수 있는 시스템 개발을 연구 목적으로 한다. 본 연구의 결과를 이용하면 일반사용자도 대기상황에 대한 정보를 쉽게 이해할 수 있고, 구축된 GIS 데이터베이스를 이용하여 지역별로 측정 및 예측된 오염상태를 활용한 총 대기오염의 현황을 산출할 수 있다. 또한 대기측정기 이상에 의한 자료입력 불능에 대비한 날씨, 시간, 요일 별 대기상황 예측이 가능할 것이며, 대기오염측정기의 최적설치장소 선정 및 관리에도 활용할 수 있을 기대된다. 그리고 지속적이고 신뢰성 있는 데이터베이스 구축을 통해 중장기 대기오염측정 및 저감대책을 수립하는데 기여할 수 있을 것이다.

• Science of Emotion and Sensibility
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• v.11 no.4
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• pp.629-636
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• 2008

In recent years, a large number of robots have been developed in several countries, and these robots have been built for the purpose to appeal to users by well designed human-robot interaction. In case of the robots developed so far, they show proper reactions only when there is a certain input. On the other hands, they cannot perform in a standby mode which means there is no input. In other words, if a robot does not make any motion in standby mode, users may feel that the robot is being turned-off or even out of work. Especially, the social service robots maintain the standby status after finishing a certain task. In this period of time, if the robots can make human-like behavioral patterns such like a person in help desk, then they are expected to make people feels that they are alive and is more likely to interact with them. It is said that even if there is no interaction with others or the environment, people normally reacts to internal or external stimuli which are created by themselves such as moving their eyes or bodies. In order to create robotic behavioral patterns for standby mode, we analyze the actual facial expression and behavior from people who are in neutral affective emotion based on ethnographic methodology and apply extracted characteristics to our robots. Moreover, by using the robots which can show those series of expression and action, our research needs to find that people can feel like they are alive.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.1606-1608
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• 2013

대기 중에 비는 기체상태 혹은 입자상태로 대기오염물질을 습성침착 하는 대기정화작용을 한다. 환경과학분야에서는 이러한 자연의 대기정화 프로세스를 분석하여 강우량에 따라 대기정화 정도를 예측하기 위한 모델들을 제시하고 있고, 이러한 모델들을 이용하여 대기오염을 예보하는 응용이 확산되고 있다. 본 논문은 강수량에 따른 대기오염물질(NO2, PM10) 정화효과 모델을 기반으로, 강우량 정보를 이용하여 대기오염도 예측결과를 시각화하는 도구를 제시한다. 본 연구의 결과는 직관적인 대기오염피해를 예방하는 도구로서 활용 가능하다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.22 no.3
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• pp.293-301
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• 2004

This study analyzes the interrelationship with air pollution quality and land used patterns, and analyzes the history and optimal allocation of TMS using GIS. Seasonal air pollution map are maded of TMS data in study area, and land used patterns based on Land Cover Classification Map are reclassified as residential area, commercial area, industrial area, traffic concentrated area, and non-Polluted area. Pollution sources can be identified through analyzing the correlation of air pollution and land used patterns by GIS spatial overlaying technique. Hence, the result shows that it coincides with the characteristics of conventional air pollution. Air pollution quality measured by TMS shows similar to that of its near stations or the same land used patterns, through the history and allocation analysis of TMS. Therefore, it is need to consider these characteristics in setting TMS positions in the future.

• Korean Journal of Construction Engineering and Management
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• v.14 no.2
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• pp.87-95
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• 2013

The number of construction management firms has been increased as construction management delivery system has been active in Korean construction market. the capability of leading construction management professional, who is responsible for managing project administration, is important for commissioning construction management contracts. The quality of project proposal and the capability of leading construction management professional, which are assessed by the board of contract awarding committee, are the major contributors for commissioning the public construction management projects administered by the Korean public procurement service for contracting. Therefore, employing a very competent leading construction management professional is the critical strategy for awarding contract to the construction management firms' part. That is why the firms should secure a fixed number of leading construction management professional in a waiting list to proceed the contract commissioning process for expectant candidate projects, even if there is no project assignable to the leading construction management professionals. However, a measure that makes effectively use of the leading construction management professional in a waiting list has not been systematically implemented in the firms. In turn, the firm suffers considerable loss in a project personnel supply and demand plan. Expert opinions were obtained by the survey questionaries administered to top management of the construction management firms which are engaged in the construction management contracts for commissioning the public construction management projects administered by the Korean public procurement service either as principal or co-principal deliverer. This paper presents the findings obtained by investigating the actual employment state of the leading construction management professional in the waiting list and by analyzing the issues involved in mobilizing and demobilizing them. It contributes to implement a practical guide for searching effective solutions to the issues.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.71-72
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• 2016

본 논문은 건식 내부 굴착 매립 간척공법(Dry Internal Project Land Digging Reclamation Method, DIPLDRM)[3] 호소의 대기 환경 개선을 위한 미세먼지 조절 IOT 모듈을 개발하는데 목적으로 하고 있다. 이를 위해 공기오염 중 인체에 가장 영향을 많이 미치는 미세먼지를 측정할 수 있는 공기오염 측정 시스템을 위한 공기 상태 변화를 Web 브라우저를 제안한다. 또한 본 연구는 외부 대기 상태와 디바이스로부터 측정된 내부 대기상태를 비교할 수 있도록 시각화함으로써 사용자의 편의성을 증대시킬 수 있을 것으로 판단된다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37 no.5B
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• pp.317-326
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• 2012

Recently, many researchers have studied to solve the energy consumption of network equipments since the interest of Green IT has been increased. In this paper, we apply Low Power Idle (LPI) to OBS network to reduce energy consumption of network devices. Many previous researches have focused on maximizing the sleep time of network equipments to increase the energy saving efficiency of LPI. But transition overhead caused by LPI might not only depreciate the performance of energy saving but also increase packet delay. In this paper, Transition Decision (TD) algorithm is proposed to improve energy saving efficiency by reducing the number of unnecessary transition and guarantee the required QoS such as packet delay. To evaluate the performance of proposed algorithm, we model OBS edge router with LPI by OPNET and analyze the performance of the proposed algorithm in views of energy saving, transition count and average packet delay.