서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

KAL기 추락에 의한 대량재해의 개인식별

강신몽,이원태,고영창,최상규,김윤희,이홍석,서재관,윤중진,이혜경,최득린,김종열,윤창육,변명식,이장홍 大韓法醫學會 1991 대한법의학회지 Vol.15 No.2

Individual identification is an important part in medicolegal field especially in mass disaster. At July, 27, 1989, KAL KE-803 was crashed on landing at Tripoli International Airport, Liba. The plane was caught in fire and sixty eight Koreans were sacrified. The majority of victims were severely charred and injured. The authors examed all dead bodies and successfully identified all the cases through visual, anthropological, odontological, radiological and pathological methods including fingerprint and blood typing.

공원묘지 유실에 의한 대량재해의 개인식별

강신몽,이한영,윤중진,이원태,김종열,이영석,서재관,최득린,서지석,이혜경 大韓法醫學會 1992 대한법의학회지 Vol.16 No.1

Individual identification of severely decomposed or skeletonized bodies is an important part in medicolegal field. 142 bodies were torn up and carried away by flood in a park cemetry, Kwang-Ju, Kyunggi province, Korea at Sept., 10, 1990. The authors examed the 56 bodies, which were gained, through medical, anthropological, odontological, radiological methods, and superimposition for individual identification. Among them, 41 cases were successfully identified, and remaining 15 cases were not identified because of sever destruction and no adequate information.

규산질 비료의 참외 흰가루병 발생 억제 효과

류나현,최미영,류연주,조현종,이용세,이영득,정종배 한국환경농학회 2003 한국환경농학회지 Vol.22 No.4

토양에 시용한 규산의 참외 흰가루병에 대한 직접적인 억제 효과와 살균제의 방제 효과를 증진시킬 수 있는 보조효과를 조사하였다. 규산질 비료의 처리는 철가루병 균에 의해 감염된 참외 잎에서 균사의 생장과 분생포자의 형성을 억제함으로써 흰가루병 발생을 일부 억제할 수 있는 것으로 조사되었다. 물론 규산질 비료 자체만의 흰가루병 발생 억제 효과는 매우 미약한 수준이었으나 살균제의 흰가루병 방제 효과를 크게 증진시켜줄 수 있는 것으로 나타났다. 따라서 현재 농가 현장에서 밝혀지고 있는 규산질 비료의 참외 병해 발생 억제 효과는 주로 이러한 살균제의 효과를 증진시킬 수 있는 규산의 보조적인 작용에 기인하는 것으로 판단된다. 따라서 토양에 대한 적절한 수준의 규산질 비료의 시용은 살균제의 방제 효과 증진을 통하여 과다한 약제의 사용과 그에 따른 부작용을 경감시킬 수 있을 것으로 보인다. 규산질 비료의 흰가루병 발생 억제 효과를 증진시키기 위해서는 앞으로 병의 발생을 최대로 억제할 수 있는 참외 잎 중의 적정 규소 함량에 대한 검토 등의 추가적인 연구가 필요할 것이다. Silicon is known to accumulate in plants and results in greater resistance to diseases and insect pests. In this study, we investigated the effect of silicate fertUizer applied in soil on the development of powdery mildew of oriental melon Oriental melon seedlings of four-leaf stage were transplanted and grown in a plastic film house. silicate fertilizer was applied to maintain soil available SiO₂ level of 200 ㎎/㎏ one week before transplanting. Fungicide trinumizol was sprayed three times; one, two, and three weeks after transplanting. Sphaerotheca fuliginea was inoculated 2 weeks after transplanting. The number of infected leaf and the number of fungal colony in leaves were measured one, two, and three weeks after the inoculation. Three weeks after the fungal inoculation, in the treatment of fungicide triflwnhl, infected leaf numbem and number of colony per leaf were reduced by 10 and 58% respectively. In the silicate fertilizer treatment, infected leaf numbers and numbers of colony per infected leaf were suppressed only by 6 and 16%, respectively, and the efficacy was lower than that of the fungicide triflumizol. The combined treatment of silicate fertilizer and the fungicide suppressed powdery mildew more effectively, and infected leaf numbem and numbem of colony per leaf were reduced by 31 and 80%, respectively. These results indicate that although silicate fertilizer itself is not much effective in the suppression of powdery mildew, it can significantly enhance the efficacy of the fungicide.

건축의 공간론적 접근과 미학적 해석에 관한 연구

이용재,최영재,유재득 순천향대학교 부설 산업기술연구소 2003 순천향 산업기술연구소논문집 Vol.9 No.1

The purpose of this study is to define the spatial approach and aesthetic analysis in architecture since modern period. The essential meaning of architecture requires to be approached with empirical factors which has influences on architects, that is its intrinsic specialty of scientific practicality and aesthetic aspects. Especially when the peculiarities of architecture is understood with the view considering it as an art, it will be the concept of the space. Now, the study on architecture can be started with the aesthetic attitude which recognized it as the art of the space. It is on the premise of the change of the aesthetic recognition in architecture that its essence and central concept are in the space, its function and forms, and aesthetical embodiment. It is not until the late 19th century that the concept of the architectural space has been adapted and it has been changed showing various aspects through the 19th and 20th century. Therefore the periodical scope of this study is defined from the late 19th century until now. The conclusions of the study as per the above mentioned purpose and intentions are as follows ; The structure of the architectural space expressed as per the aesthetic recognition of the space shows the transforming aspects from the Enclosed Spatial Structure to the Topological Spatial Structure. And the aesthetic cognition viewpoint of the architectural spaces is classified as the objective speculating aesthetics where the subjects' transcendental cognition is developed subjectively as well as individually, and the objective empirical aesthetics in which the subjects' experience is working objectively and logically.

3중 적층형 압전 트랜스듀서의 주파수 특성

李鎔國,李海龍,韓得永 건국대학교 1995 學術誌 Vol.39 No.2

Frequency characteristics of a three-layered piezoelectric transducer are analyzed with three piezoelectric ceramic disk vibrators and two sheets of thin isolator. The electric input voltage near its fundamental resonant frequency is applied to the center vibrator and the output voltages across the left and the right vibrators are connected in parallel or in series to the resister load. Moreover, equivalent circuits are derived from the Mason's model for parallel connection and series connection. Also, equations of voltage ratio, resonant frequency, phase angle between the Input and output voltages, and bandwidth have been derived. Computed values from those equations are compared with measured values. Both are shown to agree well each other. Key words : Three-layered piezoelectric transducer(3중 적층형 압전 트랜스듀서), Equivalent circuit(등가회로), Parallel connection(병렬연결), Series connection(직렬연결), Resonant frequency(공진주파수), Bandwidth(대역폭)

비올레 르 �� 건축이론에 나타난 합리주의적 특성

李英美,李孝院,千得琰 대한건축학회 2003 대한건축학회논문집 Vol.19 No.3

The aim of this study lies on the deeper understanding of Viollet-le-Duc's architectural theory through his dialectic thoughts on history, through examining by what forms the rationalistic features of Viollet-le-Duc's theory was presented in his design methodology. Viollet-le-Duc, who maintained and based his own architectural theory on the rational thinking system, had already presented the theory of rational design long before modern architects such as Le Corbusier who sought to systematize the design methodology scientifically. Various works of his own designing and the buildings restored by him are undoubtedly based on this rational design methodology applying Cartesian' way of thinking. And also like the human history repeating evolution, they are the very outcomes of efforts trying to create his own logical expression considering things as the process of dialectical evolution. His rationalistic thinking developed into the ideology of freedom of 'While nature is only a matter with a good reserve waiting eternally for the transformation, history is the true image of eternity', and eventually formed the architectural theory full of enthusiasm towards the new architecture.

급성호흡부전증 환자에서 초기 인공환기방식의 중요성 : 인공환기시 혈역학적으로 유의한 부정맥의 유발요인 분석

이영주,김원,김영득,천석천,임경수 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4

Background: The purpose of this article was to identify the risk factors related to development of hemodynamically significant cardiac arrythmias in patients with mechanical ventilation. Methods and Results: Holter recording and echocardiogram were performed after 30 minutes of ventilator initiation in patients on mechanical ventilation(MV) owing to respiratory failure(RF) from various reasons. From 68 patients, hemodynamically significant cardiac arrythmias were detected in 18 patients(26.5%). Initial mean arterial pressure, maximal heart rate, and initial pH were identified as risk factors for hemodynamically significant cardiac arrythmlas. Additionally, the patients with pressure-controlled ventilation as an initial ventilatory mode developed hemodynamically significant cardiac arrythmias less frequently than the patients with other modes(15.8% vs. 40%, p=0.03). In multivariate analysis, initial mean arterial pressure(<70mmHg, odds ratio[OR]: 5.5; 95% confidence interval[CI]: 1.2 to 24.2, p=0.026), maximal heart rate(>120/min, OR: 19.7; 95% CI: 2.0 to 190.9, p=0.01), and pressure-controlled ventilation(OR: 0.13, 95% CI: 0.03 to 0.55, p=0.006) were associated with the development of hemodynamically significant cardiac arrhythmias. Conclusion: Theses findings suggest that during the early stages of mechanical ventilation with acute respiratory failure, hemodynamically significant cardiac arrhythmias are directly associated with tachycardia(>120/min), initial MAP(<70 mmHg), and, inversely, the initial use of pressure-controlled ventilation.

잎 담배 根群發達과 養分移動 및 生育特性에 關한 硏究

李鎔得 건국대학교 1979 論文集 Vol.10 No.1

An investigation was carried out on the connection of conductive tissues between roots and leaves of tobacco. The results are summarized as follows; (1) Absorbed nutrients in tap roots was passed and accumulated from the lowest leaf to growing point in that order. But it is slow and unclear at near the growing point. In adventitious roots, absorbed nutrient is passed and accumulated from middle leaves to upper leaves, in relatively short time. (2) Passing of nurients which is absorbed simultaneously in tap roots and adventitious roots are signed first on the lowest leaf and the upper-most leaf, and by afterward falling and elevating, nutrients accumulation of middle leaves in last. But it is generally carried out in relatively short time. (3) The growth of tabacco mainly depends upon the absorbed nutrients from the tap roots, but the adventitious roots have little connection with the process. (4) The growth of tabacco mainly depends upon the soil volume occupied by the tap roots, but that of adventitious roots have little influence. From above results, it was recognized that tap roots and adventitious roots play a different role as supplies of nutrients, and the glowing process related largely with tap roots. Thus, it is extremely important problem to establish a cultivation technique based on the stimulation of tap roots development.

도시하천의 환경 친화적 개선방안에 관한 조사연구

이길영,권득용,김영안,한천규 대전대학교 산업기술연구소 1999 산업기술연구소 論文集 Vol.10 No.1

The three main steams flowing through Taejon have some serious problems to be solved or improved. They are : First, the uniform cross section of the rivers should be changed. Second, the extension of the riverside road should be reconsidered. Third. the neighborhood parks on the flood plain should be modified. Fourth, the flood plain parking place must not be constructed. Fifth, the ecosystem will be destroyed by the structure constructed along the rivers. In this study, we suggest that the investment and research on the development of the new technology for the setting the rivers in natural condition should be needed now and the continuous investigation and long-term plan to preserve the ecosystem of the rivers should be required. The environmental conditions of Taejon-stream, Yudung-stream and Kap-stream are indicators of the standard of living of the citizens in Taejon. Now is the time to reconsider the careless construction around the rivers and to prepare the long-term plan for the protection of the ecosystem and natural environment.