전국 10개 종합병원 중환자실 환자의 직장내 Vancomycin-resistant Enterococci(VRE) 보균율, 보균의 위험요인 및 유전적 다양성 조사

정희진,송준영,엄중식,김우주,최선주,최정현,이혁,정문현,이광미,신동현,손보라,최종성,우흥정,권정아,이경원,최강원,박승철 대한감염학회 2002 감염 Vol.34 No.5

Flubendazole의 편충에 대한 구충효과

최원영,남호우,유채을,한인수,한경용 최신의학사 1988 最新醫學 Vol.31 No.7

자바 가상 기계를 목적으로 하는 C컴파일러 설계

최원호,정민수,김도우 경남대학교 정보통신연구소 1999 연구논문집 Vol.1 No.-

요즘 각광 받고 있는 정보통신 분야에서는 무선 네트워킹, 홈 네트워킹, 오피스 네트워킹 등 특정한 플랫폼과 네트웍 디바이스에 상관없이 서로 정보를 주고 받고 있다. 그리고 일반 가정에서도 쉽게 디지털 TV나 휴대폰 등에서 인터넷에 접속하여 정보를 얻을 수 있다. 이런 서로 다른 이기종 플랫폼에 영향을 받지 않고 사용할 수 있는 것이 바로 자바이다. 본 논문에서는 자바만이 가지는 플랫폼 독립적인 특성을 C언어와 같은 고급 언어에 적용해 보고자 한다. 이를 통해서 기존 C언어로 작성된 소프트웨어를 본 논문에서 설계한 컴파일러를 통해 소프트웨어의 재사용성을 높이면서 자바만의 특성을 가지게 할 수 있다. 즉, C언어로 작성된 원시 코드(Source code)를 컴파일러를 이용해서 자바 가상 기계가 인식할 수 있는 목적 코드인 바이트 코드(Byte code)로 변환하고 이를 자바 가상 기계(Java Virtual Machine)가 탑재되어 있는 어떠한 플랫폼에서도 수행할 수 있도록 하는 것이다. 따라서, 본 논문에서는 C언어로 작성된 응용 프로그램을 이기종 플랫폼 상에서 실행 가능 하도록 바이트 코드를 생성하는 컴파일러를 설계한다. The platform independence is the hot issues in the world information and communications, such as wireless networking, Home networking, Office networking. Java is an solution of platform independence. In this paper, we apply the platform independence features of Java to high level language, such as C. In other words, we design a compiler that reads C code and produce bytecodes. Hence, the software written C can be translated into bytecode and can be executed under Java virtual machine.

해수유동모델 결과의 3차원 가시화를 위한 GUI 구현

최우정,박성은,이원찬,구준호,서영상,김태현 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.3

해수유동모델 결과를 3차원적으로 가시화하기 위한 그래픽 유저 인터페이스를 구축하는 과정에서 지리정보시스템(GIS) 기술을 활용하였다. 연안역 관리에서 GIS 기법은 산재되어 있는 방대한 자료들을 저장하고 이를 3차원으로 가시화하는 기능을 제공하며 해석적, 통계적, 모델링 도구로써 주어진 상황에 적합한 데이터 변환이 가능하도록 해준다. 해수유동모델은 개방경계에서 조석, 바람, 수온, 염분, 강물 유입 및 태양복사 등과 같은 모델입력값을 부여함으로써 구동되며 대상해역은 진해만으로 하였다. 녈 연구에서는 국산 GIS 소프트웨어인 GeoMania (v2.5)를 사용하여 진해만을 대상으로 시뮬레이션된 해수유동모델 결과의 3차원 가시화 모듈을 구축하였다. This study presents an application of GIS technologies to construct the graphic user interface for 3-dimensional exhibition of the results obtained by ocean hydrodynamic model. In coastal management studies, GIS provide a receptacle for scattered data from diverse sources and an improvement of the 3D visualization of such data. Within the frame of a GIS a variety of analytical, statistical and modeling tools can be applied to transform data and make them suitable for a given application. A 3D hydrodynamic model was driven by time-dependent external forcing such as tide, wind velocity, temperature, salinity, river discharge, and solar radiation under the open boundary condition. The Jinhae bay was selected as a case study. Here, we have used GeoMania v2. 5 GIS software and its 3D Analyst extension module to visualize hydrodynamic model result that were simulated around the Jinhae bay.

糞尿의 好氣性消化에 關한 實驗的 硏究(2)

최정우,엄원택 嶺南大學校 工業技術硏究所 1983 연구보고 Vol.11 No.1

This study is aimed at experimentally determine the process through which the digestion tank reaches normal state and its efficiency thereafter at variable detention and lapse times in treating night soil by the aerobic digestion method. Experiments are run indoor. Samples are loaded in batches and digested for 5,10,15,20 and 25 days in the tank which is continuously aerated at constant temperature, air flow and return sludge rate. The following results are noted: 1. Digestion tank reaches normal state after 9, 8.6, 5.5, 2.4 and 1.9 cycles of operation for the detention time of 5,10,15,20 and 25 days, respectively, the longer the detention time the smaller the number of cycles. 2. Protozoa which primarily occur in the aerobic digestion process somewhat differ from those observed in the activated sludge process, Oikomonas being the prevalent species in the former. 3. Waste sludge stands at 6,5 and 7% when the sample is digested for 15,20 and 25 days, respectively, which indicates reduced cost of sludge treatment. 4. Treatment efficiency of better than 99% is attained in the removal of BOD regardless of the length of digestion time when BOD is loaded at the rate of 1.7Kg/m³.day and 0.7kg/SSkgㆍday 5. Treatment efficiency of better than 95% is attained in the removal of COD(cr) regardless of the length of digestion time when COD(cr) is loaded at the rate 4.0kg/m³.day and 0.4kg/SSkgㆍday 6. Over 94% of NH₄-N is removed by the aerobic digestion process when the sample is digested for 10 to 25 days, and as much of PO₄-³ removed when digested for 10 and 15 days. 7. The optimum digestion time is 15 days, which may be reduced to 10 days.

石灰 및 苦土가 土壤內 有效成分變化와 水稻生育에 미치는 影響

崔元凱,文泰萬,河浩成,朴愚喆 진주농과대학 1968 진주농과대학 연구논문집 Vol.- No.7

pH 5.5의 耕作土壤에 石灰를 1-6me/100gr까지 增加시켜 土壤內 成分과 水稻生育에 對하여 몇 가지 結果를 얻었으며, 역시 同一土壤에 Mg를 1-4me/100gr 施用하여 몇 가지 結果를 얻었다. (1) Ca當量別 增加에 따라 exch-Ca와 pH의 變化는 比例的으로 增加되어 高度의 相關이 있다. (2) 有效燐酸, 可溶性SiO2, 有機物, 活性鐵, 置換性 苦土等의 含量變化는 認定되지 않았다. (3) 燐酸의 吸收係數는 Ca施用에 따라 正 相關이 認定된다. (4) Ca施用에 따라 生育面에 莖數, 穗數는 減少되어 負相關이 認定된다. (5) 草長, 稈長, 稔實率, 穗當着粒數에는 變化가 認定되지 않는다. (6) Mg를 1-4me/100gr 增加施用에 따라 土壤內 exch-Mg와 有效燐酸은 增加되었다. (7) pH 및 基他成分은 變化가 나타나지 않았다. (8) Mg施用에 따라 生育은 草長, 莖數는 增加가 없었고 穗數와 稈長이 增加된 傾向이고 基他는 變化가 없다. Some results of rice growth and available element in soil were obtained by application 1-6me/100gr of calcium and 1-4me/100gr of magnessium in a soil which was pH 5.5. The results of the study showed the followings. 1. Increasing the application of calcium, exch-Ca, pH and absorption coefficient of phosphorus were increased proportionally, but available ??, soluble SiO₂, O.M., active Fe and exch-Mg were not changed. 2. Number of Penicles and tillers were decreased proportionally but plant height, the length of culm, rate of grain formation and number of grain per penicle were not changed. 3. Increasing the application of magnessium, exch-Mg and available ?? were increased but the others were not changed. 4. Plant height and number of penicles were not increased but the number of tillers and the length of culm had tendency to increase.

고속 HMC 이송계의 운동특성 평가 및 운동오차 예측

최헌종,허남환,강은구,이석우,홍원표 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-

Recently, the evolution in production techniques (e.g. high-speed milling) and the complex shapes involved in modern production design has been increasingly popular. The key to the achievement is a drastic improvement of the dynamic behavior of the machine tool axes used in production machinery. The more complex these tool paths the higher the speed and acceleration requirements. But it is very difficult to reach the target for high speed machine tool because of the limitations of servo system and motion control system. However the direct drive design of machine tool axes, which is based on linear motors and which recently appeared on the market, is a viable candidate to meet the ever increasing demands, because of these advantages such as no backlash, less friction, more mechanical simplicity and very higher acceleration and velocity comparing to the traditional system. This paper focused on the performance tests of the high speed horizontal machine tool based on linear motor. Especially, dynamic characteristics were investigated through circular test and circular form machining test is carried out considering many important parameter. Therefore these several experiments is used to be evaluated the model for prediction of circular motion error and circular machined error.

한국산 개불, Urechis unicinctus의 서식생태에 관한 연구

최상덕,김호진,이원교,서호영,이우범 國立 麗水大學校 環境問題硏究所 2000 環境硏究論文集 Vol.3 No.-

For the commercial culture of marine echiuran worm Urechis unicinctus, a series of basic ecological study has been conducted for fishery period(November, 1998~April, 1999) in the laboratory and southern coast of Korea. The environmental factors of echiurans' habitat such as water temperature, salinity and dissolved oxygen were ranged 8.0~14.9 °C, 30.1~33.1 psu 7.0~8.9 ㎎/ℓ, respectively. The habitat sediments were composed of coarse sand, sand silt and silty sand. The highest densities and biomass of U. unicinctus were found in areas of the sand silt. In the laboratory, all echiurans performed burrowing success in coarse sand and sand within 24 hours, but none did in silt and clay within 10 days. In sand silt, echiurans enabled to dig 0.7~2.8 burrows/day/ind. And U. unicinctus made a burrow of U shape.

레이저 형광법에 의한 프로세싱 플라즈마중의 입자 계측에 관한 연구

최상태,이광식,하장호,전용우,박원주 嶺南大學校 工業技術硏究所 1998 工業技術硏究所論文集 Vol.26 No.2

Armorphous materials have various structures that is determined by different manufacturing conditions. That is, the photoelectric characteristics of films manufactured by different conditions are totally different. The growth mechanism of a-Si should be understood in order to controll the characteristics and structures of these kinds of materials. In this study, we try to elucidate the particle behaviours in a processing plasma using a low pressure glow discharge. And because of difficulties understanding discharge mechanism, we have done the processing so far depending on the experimental methods that compare the thin film produced by varing discharge parameter with the results of micromachinary. But, this has a limitation in the development because it regards the plasma as a blackbox. Therefore, because it needs to observe the discharge parameters and plasma background gas systematically, we try make sure that the particle behaviours be made clean by using laser fluorescence method which is predominant in a phenomina measurement and special resolution.

개에서 발생한 이혈종의 임상적 관리

이우철,윤기영,서경원,최호정,정성목,송근호,조종기,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2012 動物醫科學硏究誌 Vol.19 No.1

A 14-year-old male pomeranian was present with swollen left ear. The swelling occurred from base to apex of pinna. Otitis externa persisted for two years. Hematological and serum biochemistry values were not remarkable. The surgery treatment was the most appropriate method among indwelling drain, surgical, and steroid treatment in the aural hematoma because the dog was very sensitive to touching pinna and the size of aural hematoma. Longitudinal incision was applied after general anesthesia. Cefovecin was injected to prevent secondary infection. The outcome of surgery was good. There was no evidence of recurrence for one year.