주요 건설폐기물의 재활용 저해요인 도출을 통한 현장 건설폐기물 처리 프로세스 개선 방안

김재문,김지혜,차희성,신동우,Kim, Jae-Moon,Kim, Jee-Hye,Cha, Hee-Sung,Shin, Dong-Woo 한국건설관리학회 2008 건설관리 : 한국건설관리학회 학회지 Vol.9 No.1

On account of increasing interest of substantiality in these day, it is needed to make an effort to establish an environmentally sustainable production system for the construction works. Although practical affairs and researches are in progress to reduce and recycle construction wastes, as a result of a research, there are still obstructive factors on waste reduction and recycling which they don't interact efficiently between waste disposal process of the construction area and waste disposal company. As a plan to revitalize reduction and recycling of construction wastes, this research focuses on finding obstructive factors and giving solutions to reduce and recycle construction wastes which comes from construction process and construction industries. To meet the needs of the research, firstly relatively significant construction wastes (concrete, soil, brick, block, asphalt, plastic, lumber) were identified. On site level interviews with management of disposal companies and construction sites were conducted as well, focusing on typical waste disposal process. Throughout this interviews, obstructive factors were conducted. A result of the research, the authors suggest an improved approach on disposal and recycling for construction waste by prioritizing the identified factors and ranking the importance level of each factor. And, by identifying factors obstructing reduction and recycle of construction wastes, this research suggests improved disposal process of construction waste. 최근 국내외적으로 친환경에 대한 국제적인 관심이 증가됨에 따라, 건설 산업 측면에서도 친환경적인 생산시스템 구축을 위한 노력이 요구되고 있다. 이에 부응하기 인해 건설폐기물 재활용과 관련하여 다양한 실무와 연구가 진행되고 있지만, 현장조사결과 '건설현장'과 '폐기물 처리업체'에서 수행하고 있는 폐기물 처리과정 및 처리방안이 상호 효과적으로 지원하고 있지 못하여 폐기물 재활용 저해요소로서 작용하고있는 실정이다. 따라서 본 연구에서는 건설폐기물의 재활용을 활성화시키는 방안으로써, '건설현장'과 '폐기물 처리업체'의 건설폐기물 처리과정에서 폐기물 재활용을 저해하는 요인을 도출하고, 이를 기반으로 개선방향을 제시하고자 한다. 이러한 연구목표를 달성하기 위해, 먼저 광범위한 문헌조사를 통해 대표적인 건설폐기물 종류(폐 콘크리트, 폐 아스팔트, 폐 토사, 폐 벽돌, 폐 합성수지, 폐 목재)를 선정하였고, '건설현장'과 '폐기물 처리 업체'를 대상으로 전문가 면담을 실시하여, 이들 개별 폐기물의 처리과정 조사를 통해서 폐기물 재활용 저해요인을 조사하였다. 또한, 전문가 면담 결과로 파악된 폐기물 재활용 저해요인을 설문조사를 통해 중요도 및 우선순위를 파악하였다. 이를 기반으로 현행 건설폐기물 처리 프로세스를 개선함으로써, 재활용 효율화 방안을 제시하였다.

두통 및 안면통

김재문,Kim, Jae-Moon 한국생명보험의학회 1996 保險醫學會誌 Vol.15 No.-

수소연료전지 발전시스템을 적용한 3kW급 인터리브 컨버터 제어

김재문(Jae-Moon Kim),정노건(No-geon Jung),장진영(Chin-Young Chang),김양수(Yang-Su Kim),박철민(Chul-Min Park),장상훈(Sang-Hoon Chang) 대한전기학회 2014 대한전기학회 학술대회 논문집 Vol.2014 No.7

전기 철도차량용 보조전원장치의 역률보정을 위한 단상 컨버터 구현

김재문(Jae-Moon Kim),김양수(Yang-Soo Kim),이종성(Jong-Sung Lee),안정준(Jung-Jun Ahn) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.11

This paper presents single-phase converters for power factor correction (PFC) of auxiliary power supply for electric railway vehicles without input voltage sensing. Auxiliary power supply is called Static InVerter(SIV) which supplied lamps, air conditioning and heat equipments, control systems, etc. By applying the SIV for KTX, simulation and theoretical results verified proposed control algorithm for single-phase converter at the MTr rear end.

전기 철도차량 운행에 따른 급전 시스템 고조파 예측

김재문(Jae-Moon Kim),김양수(Yang-Soo Kim) 대한전기학회 2012 대한전기학회 학술대회 논문집 Vol.2012 No.4

당뇨병성 족부궤양이 당뇨병환자의 재원기간 및 입원비용에 미치는 영향

김재문 ( Jae Moon Kim ),진홍용 ( Heung Yong Jin ),강선미 ( Sun Mi Kang ),김소영 ( So Young Kim ),박지현 ( Ji Hyun Park ),박태선 ( Tae Sun Park ),백홍선 ( Hong Sun Baek ) 전북대학교 의과학연구소 2007 全北醫大論文集 Vol.31 No.2

연구배경: 우리나라에서 아직까지 당뇨성 족부궤양이 재원기간 및 재원 비용에 대해 미치는 영향에 대해 잘 알려져 있지 않다. 비록 당뇨성 족부궤양에 의한 재원기간 및 비용들을 정확히 측정하기는 힘들지만 이러한 시도가 향후 경제학적인 측면 및 사회적 짐이 될 수 있는 측면에서 볼 때 효과적인 의료비 절감을 할 수 있는 방안에 영향을 줄 수 있겠다. 방법: 본 자료는 2005년 1월부터 12월까지 전북대 병원 내분비 내과 및 당뇨성 족부궤양 및 당뇨를 주소로 입원한 환자에 기초하여 조사 및 비교하였다. 이중 49명의 당뇨병성 족부궤양 환자 와 나이 및 성별이 비슷한 족부 궤양이 없는 당뇨병 환자 49명을 재원비용, 협진건수, 수술여부, Lab(TG, HDL, LDL, Cr, HbA1c, Insulin, C-peptide)등을 비교하였다. 결과: 당뇨성 족부궤양이 없는 환자보다 당뇨성 족부궤양이 있는 환자는 있어서 평균 재원기간 및 입원비용이 더 높았다. (46.5 ± 36.2 vs 23.0 ± 21.4 일, P<0.05), (9,114,079 ± 7,341,282 vs 5,770,949 ± 5,387,066 원 P<0.05). 또한 당뇨병성 족부궤양 환자중 수술환자는 23명이었으며 이중 8염이 Major operation을 받았으며 15명이 Minor operation을 받았다. 결론: 위와 같은 결과를 보았을 때 당뇨병성 족부궤양의 예방은 향후 당뇨환자에게 있어서 경제적 짐으로부터 벗어날 수 있게 함을 알 수 있다. 따라서 당뇨병환자를 관리할 때, 당뇨병성 족부궤양에 대한 예방 및 교육, 치료에 좀 더 많은 관심을 가져야 하겠고 이는 요즘 증가하고 있는 사회적 측면에서의 의료비 절감효과에도 영향을 미칠 수 있으리라 사료된다. Background: Few data has been reported about the impact of diabetic foot ulcer on the length of hospitalization and costs in hospital care in Korea. Although it is difficult to estimate precisely, this trial is necessary for efficient medical policy in the respect of social budget and health economy. Methods: From Jan. 2005 to Dec. 2005, diabetic patients who have been admitted in Chonbuk National University Hospital were reviewed according to the presence of foot ulcer. After that, admission days, costs, and treatment modality were compared with diabetic patients without foot ulcer. Results: The mean value of admission days and the direct costs of diabetic patients with foot ulcer were higher than those of diabetic patients without foot ulcer (46.5 ± 36.2 vs 23.0 ± 21.4 days, P<0.05), (9,114,079 ± 7,341,282 vs 5,770,949 ± 5,387,066 won P<0.05). Among diabetic patients with foot ulcer, 23 patients had been operated including of amputation and local debridement in operating room. Conclusion: From this data, we suggest that the prevention of diabetic ulcer has a significant economic benefit in the Korea healthcare budget. Therefore, specific foot care of diabetic patients may be more beneficial in the management of diabetic patients and multidisciplinary team approach with specialized foot clinics, if possible, should be performed in the future.

전기철도의 전력선 통신망 설계에 관한 연구

김재문(Kim, Jae-Moon),김양수(Kim, Yang-Su),안승호(Ahn, Seung-Ho),이희준(Lee, Hee-Joon),이종구(Lee Jong-Ku) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.10

본 논문은 조가선을 이용한 전기철도의 전력선 통신을 위한 네트워크 설계를 제안한다. 전기철도에서 필수 적인 전차선 및 조가선을 이용하여 전력선 통신에 대한 타당성 검토를 선행연구로 수행하였다. 이를 위해 우선 무가 압상태에서 조가선에 신호결합기를 취부하여 양방향 데이터 통신을 구현하였다. 데이터 전송속도가 양호하게 나타났 으며 이를 토대로 전력선 통신을 위한 주요 구성품을 제시하고 네트워크 설계를 제안하였다. 향후 네트워크 설계에 대한 타당성을 확보하기 위해 지속적인 연구를 수행하고자 한다. In this paper we propose network design for power line communication of electric railway using messenger wire. we carried out feasibility study on the power line communication(PLC) using Contact wire and messenger wire which are required at electric railway. First of all, full-duplex data communication was implemented using coupler which is suspended on messenger wire at non-voltage state. We verified data transfer rate was found to be good, and then proposed a design example of PLC network as the main components for PLC. we will study continuously make an effort to verify on the network design of PLC for further study.

전기철도 전력시설 진단용 원격진단시스템 구축을 위한 네트워크 설계

김재문(Jae-Moon Kim),김양수(Yang-Su Kim) 대한전기학회 2009 전기학회논문지 P Vol.58 No.4

This paper is described that advanced study on network design of remote diagnosis system for power facilities of electric railway. In the field, it is very difficult for worker to diagnosis power facilities including catenary because workers should be maintenance on AC power supply. Therefore, to properly design on remote diagnosis system, we have searched the inside and outside of the country-related technology trends. Also we confirmed that required technologies to design interface technology required for the development of sensor devices and the USN network was designed in accordance with required skills. Throughout variety of requirements, we have development iRFS based ZA sensors and iRFM to receive data of sensor. Also CC2420 is applied as single-chip which used 2.4㎓ IEEE802.15.4 compliant RF tranciver designed for low-power and low-voltage wireless applications for ZigBee communication.

철도차량내의 전력변환장치 출력전원 분석을 통한 스위칭 기법 추정

김재문(Jae-Moon Kim),이을재(Eul-Jae Lee),윤차중(Cha-Jung Yun),김양수(Yang-Su Kim) 대한전기학회 2010 전기학회논문지 P Vol.59 No.2

This paper presents the estimation on switching technique via output power source analysis of power conversion unit in electric railway vehicle. The focus of this study suggested an alternative on critical problems by using head electric power(HEP). To achieve this, we have measured output power of HEP, and measurement devices set up at output of transformer connected HEP to analysis quality on output power source of head electric power(HEP) unit in electric railway vehicle. Using results of measurement of it, parameters are assumed for simulation to confirm estimation on switching technique. It is confirmed that switching technique is Selected Harmonic Elimination PWM(SHEPWM) and inverter switching frequency is less than 500[㎐]. Throughout experiment and simulation, it is estimated that switching technique used HEP is advanced SHEPWM and switching frequency is about 300[㎐]. Also leakage inductance in transformer is about 180[μH] less than 365[μH] known.

고속철도차량(KTX) 추진제어장치 LCC 평가를 위한 분석기법 연구

김재문(Kim Jae-Moon),김양수(Kim Yang-Su),윤차중(Yun Cha-Jung),안정준(Ahn Jeong-Joon) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월

This paper studied about analysis techniques for LCC estimation by high speed railway vehicle (KTX) propulsion control system(Motor Block) localization development. Recently, it is studying steadily cost reduction through research that wish to forecast life cycle cost(LCC) along with the RAMS for system. Analysis techniques for LCC estimation to base to RAMS examined that exist variously, and confirmed on another thing system example that analysis techniques that applies according to system model is different. Through this, we proposed applicable analysis techniques for LCC estimation to do localization on propulsion control system(Motor Block) of high speed railway vehicle(KTX). Hereafter, we are to present ways of LCC's forecast and to reduce costs which are able to work propulsion control system through an analysis technique proposed.