인공위성 Command Receiver용 저잡음 증폭기에 관한 연구

홍상표(S. P. Hong),오인열(I. Y. Oh),한승우(S. W. Han),정기혁(K. H. Jeong),최진일(J. I. Choi),나극환(K. H. Ra) 한국통신학회 2003 한국통신학회 학술대회논문집 Vol.2003 No.7

FMCW 방식의 라이다 신호처리부 구현

홍상표(Sangpyo Hong),박찬수(Chansu Park),이종민(Jongmin Lee),선선구(Sungo Sun),조병래(Byunglae Cho),이정수(Jungsoo Lee) 한국항공우주학회 2018 한국항공우주학회 학술발표회 논문집 Vol.2018 No.11

연구논문 : 지속가능성과 환경평가의 연계에 관한 연구

홍상표 ( Sang Pyo Hong ) 한국환경영향평가학회 2011 환경영향평가 Vol.20 No.3

Sustainability assessments tend to integrate ecological, social, and economic concerns. Sustainability assessment could be considered the highest rung in the assessment ladder. Broad strategies that seek to integrate individual SEA(Strategic Environmental Assessment) could be subjected to a sustainability assessment. Sustainability assessment could incorporate global and transboundary effects and priorities into SEA and project-level EIA(Environmental Impact Assessment). SEA could provide an environmental context and direction for project-level EIA. Procedural and substantive EIA requirements can be addressed through tiering such as sustainability assessment, SEA, project-level EIA. In Korea, PERS(Prior Environmental Review System) that has been utilized to evaluate administrative plans related with various kinds of development projects should be evolved not only to incorporate environmental impacts into early stage decision-making, but also to implicate sustainability assessments that include social equity and economic efficiency. Integration of SEA and sustainability assessment can be initiated through the application of DPSIR (Driving Force - Pressure - State - Impact - Response ) framework that was developed by European Environmental Agency.

대도시 음식물쓰레기 재활용 방안 평가

홍상표 (Sang Pyo Hong) 한국환경영향평가학회 1999 환경영향평가 Vol.8 No.1

Community residents are tend to evade waste treatment facilities such as waste landfills; waste incinerators. Therefore, decision-makers of waste management are concerned about the reduction and recycling of food garbage. As a treatment alternative of food garbage which consists of 30% of municipal waste, producing compost and feed stuff from food garbage is environmentally amenable. In considering the characteristics of food garbage are putrid and high moisturized, methods of landfilling and incineration for food garbage are environmentally inadequate. For the institutionalization of food garbage recycling, separate discharge, establishment of collection system, securing of market for compost and feed stuff manufactured from food garbage, and tax and financial incentives for food garbage recycling facilities are necessary.

관성센서를 이용한 버그균형검사 점수 분류 연구

홍상표(S. P. Hong),김연욱(Y. W. Kim),조우형(W. H. Cho),좌경림(K. L. Joa),정한영(H. Y. Jung),김규성(K. S. Kim),이상민(S. M. Lee) 한국재활복지공학회 2017 재활복지공학회논문지 Vol.11 No.1

본 논문에서는 균형평가도구 중 임상에서 가장 많이 사용되는 BBS(Berg Balance Scale)를 머신러닝 기법을 이용하여 점수 분류 정확도를 제시한다. 데이터취득은 Noraxon 시스템을 이용하여, 신체 8군데(왼쪽·오른쪽 발목, 왼쪽·오른쪽 엉덩이 위, 왼쪽·오른쪽 손목, 등(Back), 이마)에 관성센서를 부착하였다. 관성센서의 3축 가속도데이터를 기반으로 특징벡터 STFT(Short Time Fourier Transform), SAM(Signal Area Magnitude)를 추출하였다. 그 다음, BBS의 항목을 동작특성에 따라 정적인 동작(static movement)과 동적인 동작(dynamic movement)으로 나누었고, BBS의 각 항목에 대하여 점수에 영향이 있는 센서부착위치에 따라 특징벡터를 선별하였다. BBS의 항목마다 선별된 특징벡터는 GMM(Gaussian Mixture Model)을 이용하여 분류하였다. 실험대상자 40명에 대한 정확도 산출결과, 1번순으로 차례대로 55.5%, 72.2%, 87.5%, 50%, 35.1%, 62.5%, 43.3%, 58.6%, 60.7%, 33.3%, 44.8%, 89.2%, 51.8%, 85.1%의 분류 정확도를 확인하였다. In this paper, we present the score classification accuracy of BBS(Berg Balance Scale) which is the most commonly used balance evaluation tool using machine learning. Data acquisition was performed using the Noraxon system and an inertial sensor of Noraxon system was attached to the body in 8 locations (left and right ankle, left and right upper buttocks, left and right wrists, back, forehead). Based on the 3-axis accelerometer of the inertial sensor, the feature vector STFT(Short Time Fourier Transform) and SAM(Signal Area Magnitude) were extracted. Then, the items of the BBS were divided into static movement and dynamic movement depending on the operation characteristics, and the feature vectors were selected according to the sensor attachment positions which affect the score for each item of the BBS. Feature vectors selected for each item of BBS were classified using GMM(Gaussian Mixture Model). As a result of the accuracy calculation for 40 subjects, 55.5%, 72.2%, 87.5%, 50%, 35.1%, 62.5%, 43.3%, 58.6%, 60.7%, 33.3%, 44.8%, 89.2%, 51.8%, 85.1%, respectively.

화학적 등급화기법을 적용한 농공단지 입주제한업종의 환경유해성 평가

홍상표 ( Sang Pyo Hong ) 한국환경영향평가학회 2015 환경영향평가 Vol.24 No.6

The priorities of siting restriction was derived from quantification of environmental hazard according to industrial classification based on ‘Chemical Ranking and Scoring System(CRS)’ which is handling the discharge characteristics of 31 industrial classifications regulated from locating at ‘Industrial Complex in Rural Area(ICRA)’. CRS that is utilizing the data of ‘Pollutant Release and Transfer Registers(PRTR)’ is applied to determine human health risk and ecological risk which are calculated by discharged amount and materials LC50 according to water, soil and air media based on industrial classification. From this process, exposure assessment and toxicity assessment for integrating the adverse environmental impact and the mitigation effect of environmental risk according to the development of environmental technologies into establishing the rational landuse management method for the 31 industrial classifications regulated from locating at ICRA was analyzed. From the assessment result of the siting restriction removal at ICRA for 31 industrial classifications, based on 2012 year reference 6 industries that includes Manufacture of Guilt Coloration Surface Processing Steel Materials, Manufacture of Biological Product, Manufacture of Smelting Refining and Alloys of Copper, Dyeing and Finishing of Fibers and Yarns, Manufacture of Other Basic Iron and Steel n.e.c., Rolling Drawing and Extruding of Non-ferrous Metals n.e.c. are calculated as having relatively lower environmental hazards, thus it is judged that the siting restriction mitigation at ICRA is possible for the 6 industrial classifications that are not discharging the specific hazardous water contaminants during manufacturing process.

LandGEM 모델을 이용한 청주권 생활폐기물 매립장의 매립지가스 발생상수 및 메탄 잠재발생량 산정

홍상표(Hong Sangpyo) 한국환경보건학회 2008 한국환경보건학회지 Vol.34 No.6

Methane is a potent greenhouse gas and methane emissions from landfill sites have been linked to global warming. In this study, LandGEM (Landfill Gas Emission Model) was applied to predict landfill gas quantity over time, and then this result was compared with the data surveyed on the site, Cheongju Megalo Landfill. LandGEM allows the input of site-specific values for methane generation rate (k) and potential methane generation capacity Lo, but in this study, k value of 0.04/yr and Lo value of 100 m³/ton were considered to be most appropriate for reflecting non-arid temperate region conventional landfilling like Cheongju Megalo Landfill. Relatively high discrepancies between the surveyed data and the predicted data about landfill gas seems to be derived from insufficient compaction of daily soil-cover, inefficient recovery of landfill gas and banning of direct landfilling of food waste in 2005. This study can be used for dissemination of information and increasing awareness about the benefits of recovering and utilizing LFG (landfill gas) and mitigating greenhouse gas emissions. Methane is a potent greenhouse gas and methane emissions from landfill sites have been linked to global warming. In this study, LandGEM (Landfill Gas Emission Model) was applied to predict landfill gas quantity over time, and then this result was compared with the data surveyed on the site, Cheongju Megalo Landfill. LandGEM allows the input of site-specific values for methane generation rate (k) and potential methane generation capacity Lo, but in this study, k value of 0.04/yr and Lo value of 100 m³/ton were considered to be most appropriate for reflecting non-arid temperate region conventional landfilling like Cheongju Megalo Landfill. Relatively high discrepancies between the surveyed data and the predicted data about landfill gas seems to be derived from insufficient compaction of daily soil-cover, inefficient recovery of landfill gas and banning of direct landfilling of food waste in 2005. This study can be used for dissemination of information and increasing awareness about the benefits of recovering and utilizing LFG (landfill gas) and mitigating greenhouse gas emissions.

대청호 상류유역 매립지의 침출수 분석 및 평가

홍상표 ( Sang Pyo Hong ) 한국환경영향평가학회 2003 환경영향평가 Vol.12 No.3

To investigate the characteristics of 17 solid waste landfills in the upper drainage basin of Lake Daechong, the landfill sites were surveyed, the leachate of these landfills were analyzed, and the analysis results were assessed from standpoint of water contamination. Sanitary landfills which are now being operated are relatively well equipped with facilities such as leachate collection, daily soil cover and landfill gas treatment devices. But a few of open-dumping landfills were lealung leachate apparently and were supervised improperly and neglectfully by local governments. Some of sanitary landfills exceeded the COD permission criteria of leachate effluent, and some of open-dumping landfills exceeded SS, T-P, Pb, As, Fe, Mn permission criteria of leachate effluent. To improve the water quality of Lake Daechong which is utilized for supplying drinkin water, agricultural water, and industrial water to the great part of Chungchong area, the adequate and prompt measures for preventing Daechong Lake water contamination from landfills leachate is necessary.

초등학교 급식시설 음식물쓰레기 재활용 실태 평가

홍상표(Sang Pyo Hong) 한국환경영향평가학회 1999 환경영향평가 Vol.8 No.2

Characteristics of food garbage discharged from primary schools in Seoul Metropolitan city were analysed from a recycling point of view. The results of study are epitomized as follows : 1. Factors of generation of food garbage are mainly an unbalanced diet habit, indifference of class teachers, and worn-out cooking equipments. 2. Measures of reduction are principally a written message to parents, broadcasting in the school, and instruction. 3. Methods of recycling are mainly feed stuff, composting by school itself, composting on commission, and making feed stuff on commission. 4. Obstacles of food garbage recycling are a nasty smell of composting apparatus, an excessive fuel consumption of composting apparatus, a high concentration of salt, and an unstable demand for feed stuff and compost produced from food garbage. 5. Correlation factors are like follows : the number of feeding children and food garbage weight after cooking is 0.35, total food garbage generated and monthly treatment cost of food garbage is 0.20, individual school lunch expenses and food garbage weight after cooking is -0.10, individual school lunch expenses and food garbage generated per capita is 0.02, and individual school lunch expenses and monthly treatment cost of food garbage is 0.03.

MSP430 기반 뇌신경자극기 S/W 설계 및 구현

홍상표(S. P. Hong),권성호(C. H. Quan),심현민(H. M. Shim),김규태(K. T. Kim),김규성(K. S. Kim),윤광섭(K. S. Yoon),이상민(S. M. Lee) 한국재활복지공학회 2015 한국재활복지공학회 학술대회논문집 Vol.2015 No.11

This paper presents the results of the neuromodulation S/W Design and Implementation based on MSP430. The MSP430 operating with ultra power is used actively in the development of human implantable devices. In this paper, The neuromodulation S/W that was designed based on MSP430 has a simple architecture. Also, this neuromodulation S/W provides the reliability and scalability of generating neuro signals simultaneously. In order to verify the operation of the neuromodulation S/W, A separate external control device(PC) test program developed. By using the program, The experiments on generating and controling a brain stimulation signals corresponding to the parameter was conducted and shows the results.