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주희린,안원석,이성원,정원태,나서희,김성은,김기현 대한내과학회 2003 대한내과학회지 Vol.65 No.2
저자들은 전신성홍반성 루푸스의 ClassⅠ병변에 미세변화 신증후군이 동반되어 고용량의 스테로이드 요법으로 관해를 이루고 이후 재발하여 재차 신생검 결과 막성신병증으로 확인된 환자에서 cyclophosphamide로 다시 관해를 이룬 매우 드문 증례를 경험하였기에 보고하는 바이다. Systemic Lupus Erythematosus (SLE) is an autoimmune disease characterized by the overprocuction of autoantibodies and the deposition of immune complexes in various organs. Unusual case of systemic lupus erythematosus (SLE) associated with minimal change nephrotic syndrome (MCNS) is described. A 30-year-old woman who has been diagnosed as SLE and treated with prednisolone presented symptoms of nephrotic syndrome. Renal biopsy revealed minor glomerular abnormalities without deposition of immune complexes. The initial heavy proteinuria promptly decreased after the prednisolone dosage was increased and disappeared 10 weeks later. She developed proteinuria again 3 years after the initial episode. Repeated renal biopsy revealed membranous nephropathy. T-cell dysfunction, which is present both in SLE and MCNS, might have triggered MCNS during the course of SLE.
서일원,류춘선,이주돈,이영환,변광의 순천향대학교 기초과학연구소 1997 순천향자연과학연구 논문집 Vol.3 No.2
Biogenic amines can be formed and degraded either as the result of endogenous amino acid decarboxylase activity in raw materials or by the growth of decarboxylase-positive microorgannisms under conditions favorable to enzyme activity. Three biogenic amines(Tryptamine, Histamine, Tyramine) were intensively investigated by the HPLC during Kimchi fermentation at 5℃. The patterns of microfloral changes in lactic acid bacterial group, Leuconostoc, Streptococcus and Lactobacillus, were similar to the typical low-temperature fermentation. The population of microbial growth were high after 10 days and gradually decreased. The levels of Tyramine were lowered(10mg/kg) during this mid-periods(8∼16 days) but very high in initial-(15mg/kg) and final-periods (30mg/kg), in which the total acidity ranged between 0.2∼0.35% and 0.4∼0.6%, while the acidity in mid-periods revealed 0.35∼0.4% beginning the initial ripening period. Leuconostoc was highly increased in number in mid-period but slightly declined as the acidity increased, whereas Streptococcus was highly distributed in initial-period and Lactobacillus in final-period. The levels of Tryptamine and Histamine were relatively low throughout the whole fermentation period, but the profile of Tryptamine level was very similar to the case of Tyramine. Histamine was maintained at a certain level after mid-period of fermentation.
이주성,공성호,서승원,배성렬,김영채,이기철 漢陽大學校 環境工學硏究所 1997 環境科學論文集 Vol.18 No.-
이 연구는 1993년도에 우리나라의 연간 슬러지발생량이 약 3500만m³에 이르고 있으며, 이들 대부분이 매립되고 있다. 그러나 매립부지의 확보가 점점 어려워 지고 있으며 아울러 매립처분비용도 상승하고 있기 때문에 oil화, 퇴비화등으로 재자원화 하는 방법과 소각후의 소각회를 유효이용하는 방법 등이 연구 개발되고 실용화되고 있다. 슬러지의 oil화는 현재 연구단계에 있으나 앞으로 슬러지의 유효이용기술로서, 가장 좋은 방법이 되리라 기대되고 있다. 그러나 소각후의 소각회의 이용방법은 현재 일본등에서는 실용화 되어 건설자재 등으로 다양하게 이용하고 있다. 우리나라에서도 서울시 등을 비롯한 대도시에서는 하수처리장에서 발생하는 슬러지를 소각한 후에 소각회를 건설 자제용으로서 지자체의 공사에는 반드시 사용하도록 하는 제도를 만든다면 유효이용방법으로 충분한 타당성이 있을 것이다. 이때 소각방법으로는 용융소각방법이 보다 효과적일 것이다. With increasing sewage and wastewater sludge, it has become difficult to dispose the sludge by landfilling and ocean dumping. To solve this problem, efforts have been made to delelop sewage and wastewater sludge utilization technologies in many advanced countries. Some technologies have already been developed; conversion of sludge to compost and fuel, producing artificial light-weight aggregate from ashes. This paper describes the technical status of sludge utilization technologies.
정재원,김일수,박창언,김학형,서주환,김인주,심지연 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-
The development of robotic welding process is a very complex assignment because the system is affected by a number of process parameters which are very difficult to determine or predict in practice. The full automation welding has not yet been achieved partly because the mathematical model for the process parameters of a given welding task is not fully understood and quantified. Several mathematical models to control welding quality, Productivity, micro structure and weld properties in arc welding processed have been studied. However, it is not an easy task to apply them to the various practical situations because the relationship between the process parameters and the bead geometry is non-linear and also they are usually dependent on specific experimental result. Practically, it is difficult, but important to know how to establish a mathematical model that can predict the result of the actual welding process and how to select the optimum welding condition under a certain constraint. In this paper, an attempt has been made to develop an neural network model to predict the back-bead width as a function of key process parameters in the GMA (Gas Metal Arc) welding and to compare the developed models with the experimental results
3GPP-WLAN 연동을 위한 USIM 보아모듈 설계 및 구현
김원주,양종원,서창호 公州大學校 工學硏究院 生産技術硏究所 2005 論文集 Vol.13 No.-
USIM technology that accept 3GPP(3rd Generation Partnership Project) standards for information security supports security functions in 3rd generation mobile network like IMT-2000. Supported security functions of USIM are confidentiality of user identity, mutual authentication and key agreement between end user and network, confidentiality of user data and data integrity. It is very important technology in wireless and mobile network. It makes secure environment that user and service provider can use securely mobile service in network. In this paper, design and implementation USIM security module that supports common network access method and authentication protocol in 3G network and WLAN(Wireless LAN) network and AAA (3A - Authentication Authorization Accounting) server system based RADIUS.
URC용 지능형 웹 서비스 기반 템플릿 저작 도구 구현
양종원,김원주,서창호 公州大學校 工學硏究院 生産技術硏究所 2005 論文集 Vol.13 No.-
본 논문에서는 웹상에 존재하는 데이터를 로봇과 접목하여 이용 할 수 있는 네트웍 기반의 언제 어디서나 나와 함께 하며 나에게 필요한 서비스를 제공하는 지능형 서비스 로봇인 URC(Ubiquitous Robotic Companion)[1] 개념을 기본으로 한다. 또한 STDL(Service Template Description Language)을 기반으로 URC 용 서비스 템플릿 생성, 추가, 삭제, 수정 등의 기능뿐만 아니라 서비스 템플릿 리소스들에 대한 그래필 한 처리 기능을 제공한다. 서비스 템플릿 과정에서 사용자 편의적인 환경 제공을 위해 플로우 뷰 스타일, 그리드 뷰 스타일, 텍스트 뷰 스타일 등의 편집 환경을 구현했으며, 또한 실제 로봇 구동에 필요한 로봇API를 참조하고 이를 기반으로 추상 서비스 블록을 구체화하여 서비스 템플릿을 쉽게 작성할 수 있는 기능을 제공하게 된다.