재생연 제련 부산물인 황산연으로부터 정제 질산연의 제조

이진영,한춘,신중극,김성규,이화영,오종기,Lee, Jin-Young,Han, Choon,Shin, Joong-Kuk,Kim, Saung-Gyu,Lee, Hwa-Young,Oh, Jong-Kee 한국자원리싸이클링학회 1998 資源 리싸이클링 Vol.7 No.2

2차납 제련공정에서 발생한 주성분이 황산납인 연진으로부터 고부가가치제품인 정제 질산납을 생산하는 습식공정을 개발하였다. 본 공정은 탄산염에 의한 탄산화 공정과 저농도 질산용액을 이용한 침출공정 및 정제 공정으로 구성되어 있으며 본 공정을 통하여 99%이상의 순도를 가진 질산납을 제조할 수 있었다. Hydrometallugical process was developed to produce the purified lead nitrate from lead dust mainly composed of lead s sulfate generated from lead-acid battery smelter as by-product. This process consisLed of carbonation process with carbonate s salts, leaching and purification processes. FmaJJy crude lead nitrate purified to produce high-purity product with over 99% Pb $(NO_3)_2$.

Soil Erosion and river-bed change of the Keum river basin using by GIS and RS

이진영,김주용,양동윤,남욱현,김진관,Lee, Jin-Young,Kim, Ju-Young,Yang, Dong-Yoon,Nahm, Wook-Hyun,Kim, Jin-Kwan Korea Association For Quaternary Research 2006 제사기학회지 Vol.20 No.2

자연환경과 인위적 환경변화에 의한 홍수재해는 하상변동과 밀접한 관계를 갖는다. 본 연구는 금강유역을 대상으로 지리정보시스템(GIS)과 원격탐사(RS)를 이용하여 유역에서의 토양침식과 하상변동의 관계를 규명하고자 하였다. 지리정보시스템에서 범용토양유실공식 (USLE)을 이용하여 토양침식율을 계산하였다. 공주에서 이포까지 하상지형을 측량하였고, 3차원의 하상변화도를 작성하였다. 1982년에서 2000년까지 Landsat TM 영상을 이용하여 금강유역의 하상변동을 추적하였다. 연구결과, 강경일대의 토양침식율은 $1.8\;kg/m^2/$년이며, 하상증가율은 $+5\;cm/m^2/$년으로 산정되었다. 따라서 금강하류의 하상변화는 일정한 비율로 토양침식에 의하여 영향을 받는 것으로 해석된다. 또한 하상변동은 주로 금강의 지류와 본류의 접합부 하류일대에서 발생하였다. 금강하류에서 하상변동은 하성 세골재 채취가 하나의 원인으로 해석될 수 있으며, 골재채취로 인하여 1991년도에서 1995년도 사이 금강하상 위에 노출된 하상면적의 감소를 초래했던 것으로 추정된다. 한편, 금강유역 하상을 따라 교량건설, 경작지 조성을 위한 사주개간, 제방과 같은 수중 구조물들 설치는 퇴적물 집적과 퇴적하상의 노출면적 증가를 초래하였던 것으로 추정된다. Flooding hazard caused by natural and artificial environmental changes is closely associated with change in river bed configuration. This study is aimed at explaining a river-bed change related to soil erosion in the Keum river basin using GIS and RS. The USLE was used to compute soil erosion rate on the basis of GIS. River-bed profiles stretching from Kongju to Ippo were measured to construct a 3D-geomorphological map. The river-bed change was also detected by remote sensing images using Landsat TM during the period of 1982 to 2000 for the Keum river. The result shows that USLE indicates a mean soil erosion rate of $1.8\;kg/m^2/year$, and a net increase of a river-bed change at a rate of $+5\;cm/m^2$/year in the Kangkyeong area. The change in river-bed is interpreted to have been caused by soil erosion in the downstream of the Keum river basin. In addition river-bed change mainly occurred on the downstream of the confluence where tributaries and the main channel meet. Other possible river-bed change is caused by a removal of fluvial sand aggregates, which might have resulted in a net decrease of exposed area of sediment distribution between 1991 and 1995, while a construction of underwater structures, including a bridge, a reclamation of sand bars for rice fields and dikes, resulted in an increase of the exposed area of river-bed due to sediment accumulation.

현미죽 적합 품종 선정을 위한 현미 품종별 이화학적 특성

이진영,박혜영,이병원,박현수,안억근,김민영,이유영,김미향,이병규,김현주,Lee, Jin Young,Park, Hye Young,Lee, Byung Won,Park, Hyun-Su,Ahn, Eok-Keun,Kim, Min Young,Lee, Yu Young,Kim, Mi Hyang,Lee, Byung Kyu,Kim, Hyun-Joo 한국식품영양학회 2020 韓國食品營養學會誌 Vol.33 No.2

We investigated the physicochemical properties of brown rice by cultivar to select cultivar suitable for making brown rice porridge. The moisture content of the brown rice ranged from 8.79~11.78% with the highest varieties being 'Geonyangmi'. The crude ash and crude lipid content ranged from 1.02~1.65% and 1.65~3.26%, while the rest were similar except for 'Daebo'. Crude protein also had the lowest 'Daebo' and generally glutinous rice showed higher crude protein content than common rice. The hardness showed that 'Seolgaeng' and 'Keunnun' were the lowest, and 'Haiami' was the highest. In the RVA analysis, the setback was in the range -80.61~22.44 and was low in the order of 'Wolbaek', 'Baekjinju'', and 'Dongjinchal'. As a result of water binding capacity (WBC) measurement, 'Sindongjin', 'Geonyang' and 'Samkwang', were high in common rice, and 'Dongjinchal' and 'Hwaseonchal' were high in glutinous rice. Generally, solubility and swelling power in common rice was found to be lower than in glutinous rice. As a result, 'Samkwang' is considered suitable for brown rice porridge production because of high WBC, breakdown, and low setback.

봉합 나사를 이용한 변형 Br$\ddot{o}$strom 술식 및 관절경 검사를 이용한 족관절 외측 불안정성의 치료

이진영,김갑래,이은수,박현진,Lee, Jin-Young,Kim, Gab-Lae,Lee, Eun-Soo,Park, Hyun-Jin 대한족부족관절학회 2009 대한족부족관절학회지 Vol.13 No.2

Purpose: To evaluate the result of modified Br$\ddot{o}$strom procedure with anchor suture and explore associate lesion under arthroscopy for chronic lateral instability. Materials and Methods: From May 2005 to March 2009, Retrospective analysis of 126 patients with chronic lateral instability who underwent modified Br$\ddot{o}$strom procedure with anchor suture and arthroscopic procedure was done. Mean follow-up period was 13 months. Results: Chronic lateral instability of the ankle almost had local synovitis by arthroscopic examination. There were osteochondral lesion of talus on the anteromedial aspect in 63 cases, on the anterolateral aspect in 25 cases, osteochondral lesion of tibia side in 8 cases, fat hypertrophy of tibiofibular space in 120 cases, anterior fat impingement in 26 cases, intra-articular loose body in 13 cases. Mean Karlsson scoring scale was improve from 53 preoperatively to 91 postoperatively, There were 70 cases excellent, 27 cases good, 26 cases fair, 3 cases poor result according to the Sefton procedure. Conclusion: Modified Br$\ddot{o}$strom procedure with anchor suture and arthroscopic procedure are reliable treatment method for chronic ankle lateral instability which has intraarticular pathology.

납 가공공정의 부산물인 납 화합물의 산 침출에 관한 연구

이진영,한춘,오종기,이화영,김성규 ( Jin Young Lee,Choon Han,Jong Kee Oh,Hwa Young Lee,Sung Gyu Kim ) 한국화학공학회 1996 화학공학의이론과응용 Vol.2 No.2

특허(特許)와 논문(論文)으로 본 폐촉매(廢觸媒) 재활용(再活用) 기술(技術) 동향(動向)

이진영,박종진,조영주,조봉규,Lee, Jin-Young,Pak, Jong-Jin,Cho, Young-Ju,Cho, Bong-Gyoo 한국자원리싸이클링학회 2013 資源 리싸이클링 Vol.22 No.2

2000년대 이후 화력발전소, 열병합발전소 및 소각로, 화학플랜트 등 고정 오염원의 질소산화물의 배출규제가 발효됨에 따라 대규모 배출업체를 시작으로 SCR(선택적 촉매 환원법) 탈질설비를 도입하고 있으며, 배출오염물 총량규제 등 점차적으로 배출규제가 강화되고 적용 범위가 확대됨으로 인하여 SCR 탈질촉매의 사용량이 증가하는 추세이다. 발전소나 소각장 등에 이미 설치된 SCR 탈질촉매는 2010년을 기점으로 비활성화하여 새로운 촉매로 교체됨으로써 폐촉매가 폐기물이 아닌 자원으로서 재활용하기 위한 기술개발이 절실히 필요한 상황이다. 본 연구에서는 폐촉매 재활용 기술에 대한 특허와 논문을 분석하였다. 분석범위는 1975년 ~ 2012년까지의 미국, 유럽연합, 일본, 한국의 등록/공개된 특허와 SCI 논문으로 제한하였다. 특허와 논문은 키워드를 사용하여 수집하였고, 기술의 정의에 의해 필터링 하였다. 특허와 논문의 동향은 연도, 국가, 기업, 기술에 따라 분석하였다. Since the 2000s, to start inducement of SCR(Selective Catalytic Reduction) denitrification facility by large scale companies which are emitted large amount of nitrogen oxides such as power plants, combined heat and power plant, incinerators and chemical plants due to take effect the regulation of stationary sources of nitrogen oxide(NOx), and the total amount of discharged pollutants, such as regulatory gradually emissions regulations are being strengthened and the expanded coverage due to the use of SCR denitrification catalyst is a growing trend. Since 2010 due to the new catalysts to replace the already installed power plants and incinerators due to inactive, and catalytic denitrification SCR waste catalyst waste as a resource rather than the development of technologies for recycling situation is urgently needed. In this study, analyzed paper and patent for recycling technologies of waste catalyst. The range of search was limited in the open patents of USA (US), European Union (EP), Japan (JP), Korea (KR) and SCI journals from 1975 to 2012. Patents and journals were collected using key-words searching and filtered by filtering criteria. The trends of the patents and journals was analyzed by the years, countries, companies, and technologies.

Development of RTD Model of the Mixer-Settler-Type Extractor Using the Stimulus-Response Method

이진영,김준수,이후인,손정수,Lee, Jin-Young,Kim, Joon-Soo,Lee, Hoo-In,Sohn, Jeong-Soo The Korean Institute of Resources Recycling 2007 資源 리싸이클링 Vol.16 No.5

자극-반응(stimulus-response method)법을 이용하여 1단과 다단 혼합침강형 추출장치의 물질흐름특성을 규명하기 위한 실험을 수행하였다. 실험 결과, 1단 추출장치의 혼합조의 반응특성은 CSTR과 동일한 결과를 나타내었으며 혼합-침강조의 반응특성에서는 시간 지연 효과가 나타나며, 단수가 증가할수록 시간지연효과는 증가하였다. 1단과 다단 추출장치의 반응특성 실험결과를 RTD모델 해석프로그램인 K-RTD를 이용하여 분석하여 1단 및 다단 추출기의 RTD을 개발하였다. 본 연구에서 개발한 1단 및 다단 혼합침강조형 추출기의 RTD 모델에 의한 계산값과 실험값에 대한 상관 계수는 각각 0.963과 0.995로 비교적 높은 것을 확인하였다. This study presents the findings of the experiments that were conducted on single- and multi-stage solvent extractors using the stimulus-response method, with the am of identifying flow characteristics of the material inside the mixer-settler-type extractor. The results of this study show that the response characteristics of a single-stage mixer is the same as that of a completely stirred tank reactor (CSTR), and that the lag time of a mixer-settler-type extractor increases with the number of its extraction stages. The experimental data for the single- and multiple-stage extractors were analyzed using K-RTD, a response analysis program, to obtain a retention time distribution (RTD) model of one-stage and four-stage extractors. The correlation coefficient between the calculated values and the experimental data was 0.963 for the one-stage extractor and 0.995 for the four-stage extractor, showing quite a good correlation.

Liquid-Liquid Extraction General Principles - A Review

이진영,Lee, Jin-Young,Kumar, Jyothi Rajesh The Korean Institute of Resources Recycling 2009 資源 리싸이클링 Vol.18 No.6

본 총설은 용매추출(또는 액-액 추출)에 대한 일반적인 원리와 추출제별 용매추출 공정의 기초 원리를 소개하고 있다. 용매추출은 서로 섞이지 않는 두 상(phase)간에 화합물이 한 상(phase)에서 다른 상으로 이동하는 현상을 이용하는 공정이다. 초기에는 분석화학 분야에서 용매추출의 간편성, 신속성 및 넓은 적용성 때문에 많이 사용되었으며, 분액깔데기와 같은 간단한 도구로 수분내에 추출실험을 완료할 수 있다는 장점이 있다. The present review paper deals the liquid-liquid extraction (LLE) general principles and the basic fundamentals, general process of LLE followed by the importance of LLE reagents. LLE is a process of transferring a chemical compound from one liquid phase to a second liquid phase, immiscible with the first. In analytical chemistry, this method enjoys a favored position among separation techniques because of its simplicity, speed and wide scope. By utilizing apparatus no more complicated than a separatory funnel and requiring several minutes at most to perform, extraction procedures offer much to the analytical chemist.

실시간 무선 영상 감시시스템을 위한 Streamer의 설계 및 구현

이진영,김흥준,이광석,Lee, Jin-Young,Kim, Heung-Jun,Lee, Kwang-Seok 한국정보통신학회 2007 한국정보통신학회논문지 Vol.11 No.2

네트워크 인프라의 성장과 디지털 영상압축 기술의 발달로 네트워크 카메라 서버를 이용한 실시간 영상감시 시스템의 수요가 증가함에 따라 가정이나 소규모 사무실에 적합한 실용화 수준의 보안 시스템에 대한 요구도 함께 증대되고 있다. 기존의 CCTV를 이용한 실시간 영상감시에 비해 네트워크 카메라 서버를 이용한 영상감시는 많은 이점이 있다. 본 논문에선 실시간 영상감시 시스템의 핵심 모듈로서 JPEG 영상의 수집과 전달을 담당하는 JPEG Streamer의 모델을 설계, 구현하며 JPEG Streamer의 안정성과 효율성을 위해서 쓰레드 풀과 공유메모리를 사용하고 실시간 영상의 품질을 높이기 위해서 더블버퍼링의 개념도 도입하였다. 또한 제시된 Streamer의 모델을 이용하여 개인 휴대단말기(PDA)로 무선 인터넷을 통해 실시간 영상을 전송하는 무선 영상 감시시스템을 제시한다. Recently, the network Infrastructure grows rapidly and the digital image compression technique has made remarkable progress. Therefore, the demand of the real-time image surveillance system which uses a network camera server has been increasing. Network Camera Server has emerged as an attractive alternative to the CCTV for the wireless video surveillance. In this article, the model of JPEG Streamer for collecting and delivering JPEG image is designed and realized as a key module for the wireless video surveillance system. The thread pool and shared memory have been used to improve the stability and efficiency of the JPEG Streamer. In addition, the concept of double buffering is of much benefit to improve the quality of real-time image. In this article, the wireless video surveillance system by using JPEG Streamer is suggested to send the real-time image through the wireless internet with the personal digital assistance (PDA).

녹내장 수술에 사용하는 예방적 항생제: 단일기관 경험

이진영,성경림,나정화,이영록,Jin Young Lee,MD,Kyung Rim Sung,MD,PhD,Jung Hwa Na,MD,Youngrok Lee,MD 대한안과학회 2012 대한안과학회지 Vol.53 No.5

Purpose: To evaluate the use of prophylactic antibiotics in glaucoma surgery and the prevalence of postoperative endophthalmitis. Methods: Retrospective medical record review was performed on 136 eyes which underwent glaucoma operation by one surgeon from March 2008 to February 2010 and were followed at least till 6 months postoperatively (glaucoma drainage device implantation; 95 eyes, trabeculectomy; 41 eyes). Results: For intravenous antibiotics injection, 10 eyes used 3rd generation cephalosporin, 54 eyes used 4-fluoroquinolone, 72 eyes used 2nd generation cephalosporin. For oral antibiotics, 125 eyes used 3rd generation cephalosporin, 1 case used 4-fluoroquinolone, and other 10 cases did not use oral antibiotics after the surgery. Total period of systemic antibiotics use showed various distributions with 14 eyes more than 5 days, 115 eyes 4-5 days, and 8 cases less than 4 days. Six eye which used 4-fluoroquinolone and 3 eyes which used cephalosporin showed side effect such as skin lesion and nausea. There has been no single occurrence of endophthalmitis. Conclusions: Various kinds of prophylactic antibiotics were used for glaucoma surgery and the period of antibiotics use was different among patients. However, there has been no single occurrence of endophthalmitis till 6 months postoperative follow up. J Korean Ophthalmol Soc 2012;53(5):647-651