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구두발표(OC)-농업화학 및 생태,식품분야 : OC-04 ; 황산화 미생물(SOB)을 이용한 토양 독성 평가
나비드 ( Naveed Ahmed Qambrani ),신범수 ( Boem Soo Shin ),오상은 ( Sang Eun Oh ) 한국환경농학회 2014 한국환경농학회 학술대회집 Vol.2014 No.-
A sulfur-oxidizing bacteria (SOB) was successfully applied on the Cd2+ contaminated soil toxicity assessment in batch tests. The monitoring of pH and EC is enough to detect SOB activity. The SOB was found active in different weights of sulfur particles and a 25 g SOB attached sulfur particles were selected to be used in tests. EC and sulfate were found to be correlated with each other, and increasing soil quantity in the reactors decreased the EC change and sulfate production. Contaminated soil having 2 to 64 mg/L Cd2+ concentration was checked. An EC50 of 7.05 mg/L was calculated for Cd2+ contaminated soil. The SOB system was found to be efficient in detecting soil toxicity and can be applied for the evaluation of soil.
자율 주행 차량의 레이저 기반 환경인식 모듈 설계 및 데이터 수집 시스템 구축
나기인(Ki-In Na),변재민(Jaemin Byun),노명찬(Myoungchan Roh),손주찬(Joochan Sohn),서범수(Bumsoo Seo),김성훈(Sunghoon Kim) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
Architecture of the environmental perception module has been designed and specifically, the LiDAR based obstacle perception module has been designed and described with applicable algorithms. Moreover, the data logging system has been developed by vehicle, LiDAR and ROS packages for testing perception algorithms. The developed data logging system has been tested around ETRI and the logged data have been played back.
코파일럿 시스템을 위한 다중 2D LiDAR 융합기반 차량 주변 동적 장애물 추적 모듈 개발
나기인(Ki-in Na),변재민(Jaemin Byun),노명찬(Myoungchan Rho),서범수(Bumsu Seo) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5
This paper introduces the development of moving obstacles perception module using multiple 2D LiDARs. This can estimate both position and velocity of dynamic objects around vehicles. Projecting point cloud data from 2D LiDARs to range image structure, they are partitioned to particular observations with connectivity based region growing segmentation. In sequence, observations from segmentation steps are associated with the predicted tracks employing NNSF based on Kalman filter. Furthermore, the associated tracks are continuously updated, extraneous observations are generated to new tracks and missing tracks are removed. This developed module was installed on Co-Pilot system and the experiments tracking several moving obstacles at the same time were performed to show this module working.
진구성 아킬레스 건 파열에서 V-Y 건편(tendinous flap)을 이용한 재건술
전철홍,박근호,나범수 圓光大學校 醫科學硏究所 1991 圓光醫科學 Vol.7 No.1-2
Old ruptures of the Achilles tendon are not common, and they pose many difficult problems in which wide separation of the ruptured tendon is not repaired by end-to-end due to intervening scar tissue. Many methods have been attempted to fulfill the gap by grafting and to restore the continuity of the tendon. Although the results in many methods were reported as good or excellent, the extent of functional disability and residual muscle power were not usually unsatisfactory. We operated the 4 patients with old rupture of the Achilles tendon by end-to-end anastomosis using the V-Y tendinous flap originated by Abraham and Pankovich in 1975. The postoperative results were satisfactory with no functional disability of muscle power. There was neither re-rupture of the Achilles tendon nor adhesion of the tendon to the skin. Furthermore the skin problem is not developed. In conclusion, the V-Y tendinous flap is easy to do, and the power of triceps muscle is normal range. So we recommend that the method is useful for the treatment of old rupture of the Achilles tendon in which end-to-end anastomosis is otherwise impossible.
윤석태,고영구,나범수,오강호 全南大學校 師範大學 科學敎育硏究所 2007 科學敎育硏究誌 Vol.31 No.1
On the basis of soil analyses in Hampyeong area, A and B layers are dominantly developed in well weathered soils of the area. Those soil grain sizes are coarse to fine, showing a wide variation, and are poorly sorted. The soil characters directly influence to soil textures, and then, the texture types are classified into several kinds as clay, clay loam, sandy loam, sandy clay, and loam in the area. Soils in the area were formed in variable mixed ones including mountain piedmont and lower flat area environments, arid they are varied into brown soils with much humid material and deep weathered orange ones. Those soil characteristics might be brought on diverse agricultural types as ginseng and bamboo farms putting first of dry and water field ones in the study area.
관매도에 분포하는 퇴적암류에 대한 퇴적암석학적 예비연구
고영구 ( Yeong Koo Koh ),나범수 ( Bum Soo Na ),윤석태 ( Seok Tai Youn ),오강호 ( Kang Ho Oh ),박성일 ( Sung Il Park ) 한국도서학회 2015 韓國島嶼硏究 Vol.27 No.3
연구지역인 관매도 주변은 전형적인 침수해안으로 만입이 심한 리아형의 해안으로 되어 있다. 관매도에 분포하는 퇴적류에 대한 퇴적암석학적 연구를 위해 두 장소의 노두가 선택되었다. 먼저, 선착장 부근 노두는 주로 1 ~ 2 m 층후의 사암층으로 이루어져 있으며 박층의 셰일층을 협재한다. 셰일층을 협재하는 이 사암층 노두는 사암과 셰일의 특징적인 호층에 기반을 두고 Ghibaudo(1992)에 의해 제안된 sSM(plane-stratified laminated sand-mud couplet) 퇴적상에 해당되는 것으로 생각된다. 한편, 곰솔해변 북쪽 해안 주변 노두는 횡적 연장과 엽층전개에 바탕을 두어 역시 Ghubaudo(1992)에 의한 상부 사암 우세 부분의 lSM(laminated sand-mud couplet)과 하부의 셰일 우세 부분의 lSM(laminated mud-sand couplet) 퇴적상에 해당시킬 수 있다. 또한, 연구노두들에서는 단층, 피소이드형 구조, 연흔, 사엽층리, 하중구조, 말린층리, 머드볼캐노 형의 퇴적암 관입체 등 여러 가지 퇴적구조들이 나타난다. 이러한 퇴적구조들과 같이 다양한 형태의 단층들도 전개된다. 퇴적구조들 중, 사엽층리, 비대칭 연흔, 셰일 플레이크 등은 저밀도 저탁류와 관련 있는 것으로 여겨진다. 그리고, meta depositional 형의 말린층리는 머드 볼캐노형의 퇴적암 관입체 및 하중구조는 퇴적물의 불안정성에 기인한 것임을 시사한다. 퇴적물의 불안정성은 노두들의 다양한 단층들의 형성과도 관련되는 것으로 추정된다. 한편, 피소이드형 구조들은 일종의 캘크리트 기원일 가능성이 있다. 이러한 사실들에 바탕을 두고 연구지역의 퇴적암류는 아열대 기후에서 계절적 변화가 있는 환경에서 퇴적되었을 것으로 생각된다. The Gwanmae do has a highly curved ria type coast forming a typical submerged shoreline. Two outcrops of sedimentary rocks were chosen from this island for the sedimentological study. The outcrop near harbor was mainly composed of sandstone beds of 1 ~ 2 m thickness intercalating with thin shale ones. Based on the characteristic alternation of sandstone and shale beds, the sandstone beds with thin shale beds were assigned to sSM(plane-stratified laminated sand-mud couplet) facies of Ghibaudo(1992). Meanwhile, outcrops around the northern coast of Gomsol seashore were assigned to lSM (laminated sand-mud couplet) of upper sandstone dominated part and lMS(laminated mud-sand couplet) of lower shale dominate part by Ghibaudo(1992), with respect to horizontal extension and lamination. The outcrops included several sedimentary structures such as the pisoid shape structure, ripple marks, crossed laminations, load structures and sedimentary dykes like the mud-volcano. With these structures several type of faults can develope in the outcrops. The sedimentary structures, crossed laminations, asymmetrical ripple marks, and shale flakes may relate to low-concentrated turbidity current. In addition, the metadepositional type convoluted beds, load structures and sedimentary dykes such as the mud-volcano indicate sediment liquefaction caused by the instability of sediments. Sedimentary instability might also form several type of faults in the outcrops while pisoid shape structures imply a calcret origin. From the above results, it is considered that sedimentary rocks of the study area were deposited under seasonal variation of semi-tropical climate.
김주용,유환수,고영구,윤석태,나범수,오강호 全南大學校 師範大學 科學敎育硏究所 2001 科學敎育硏究誌 Vol.25 No.1
Brackish water and sediment samples from seven stations were investigated with the geochemical and sedimentological aspects, Kwangyang Bay. Those stations are located along the transections ranging from estuarine mouth to bay centre. Those water and sediment samples were investigated in items of pH, COD, DO, salinity, TOC, SS, ions incIuding NH₃, P0₄, NO₃, and metal contents. And, correlations among above ion and metal contents were considered, too. From the above mentioned analyses, brackish water in the estuarine mouth are graduaIly changed to typica1 sea one in Qua1ity, and ionic contents in the water are more or less lowered toward open sea. Additionally, the metalIic contents of the sediments would show unambiguous grain size dependent pattern relative to that of the sea water samples which are more disperse in content tendency.
자율주행 시스템을 위한 다양한 도로 환경의 다중 LiDAR 센서를 이용한 데이터셋 구축 방법
변재민(Jaemin Byun),나기인(Ki-In Na),노명찬(Myoungchan Roh),서범수(Bumsoo Seo) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5
This paper describes a data set collected by multiple LiDAR sensors and describes how to build this data set for evaluation of perception algorithm in the intelligent vehicle. For covering the surrounding of vehicle, it contains data from 1 camera, two 4-layered LiDARs(LD-MRS) and a high density 3D LiDAR(Velodyne) were synchronized and saved to our logging system while our vehicle drives in a various types of road such as uphill, downhill, etc. In addition to, this data set also have ground truth labels such as road, vehicle, building ,etc. with corresponding to each 3D point. We wish that this data set will be useful to the autonomous vehicle community, especially those developing perception capabilities.