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.

미세공정상에서 전가산기의 해석 및 비교

이우기,김정범 강원대학교 정보통신연구소 2004 정보통신논문지 Vol.8 No.-

In this paper the main topologies of one-bit full adders, including the most interesting of those recently proposed, are analyzed and compared for speed, power consumption, and power-delay product. The comparison has been performed on circuits, optimized transistor dimension to minimize power-delay product. The investigation has been carried out with properly defined simulation runs on a Cadence environment using a 0.25-μw process, also including the parasitics derived from layout. Performance has been also compared for different supply voltage values. Thus design guidelines have been derived to select the most suitable topology for the design features required. This paper also proposes a novel figure of merit to realistically compare n-bit adders implemented as a chain of one-bit full adders. The results differ from those previously published both for the more realistic simulations carried out and the more appropriate figure of merit used. They show that, except for short chains of blocks or for cases where minimum power consumption is desired, topologies with only pass transistors or transmission gates are not attractive. In contrast. the most interesting implementations in terms of trade off between power and delay are the traditional CMOS and Mirror topologies. Moreover, the CPL allow the best speed performance.

비산재 중에 함유된 중금속의 용출특성에 관한 연구(1)

이우근,김진범,김은미 江原大學校 附設 環境硏究所 1997 環境硏究 Vol.14 No.-

The secondary environmental contamination is now feared by the land-fill treatment os fly ash from MSWI. It is urgently necessary to study the development of a proper technology for fly ash. considering the governmental plan for enhancing the rate of incineration. The leaching characteristics of MSWI ash were analyzed for pH, L/S ratio and leaching time in our study. According to the result, pH was decreased as the leaching time elapsed. The amounts of leached heavy metal were affected by L/S ratio. pH is the most important among the factors for affecting the amounts. Therefore, the leaching experiment must be excuted under the pseudo-actual condition(actual pH at the land-fill site)evaluating the risk.

소각잔사 중의 클로로벤젠과 클로로페놀의 함량 및 이성체 분포특성

이우근,심영숙,김진범 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-

Chlorobenzens(CBs) and chlorophenols(CPs) in fly asha discharged from several municipal soild waste incinerators (MSWI) were investigated in terms of total content and isomer distribution. The content of CBs and CPs was highest in the fly ash from S incinerator, which were 1040.7ngCB/g-fly ash and 1156.4ngCP/g-fly ash. According to the experimental results, while all samples contained a large amount of the higher chlorinated CBs the amount of lower chlorinated CPs varied with season It was found that the isomer distribution of CBs and CPs was almost constant regardless of season. The quantities of CBs and CPs depended closely on the chemical composition of MSW, while the isomer distribution of CBs and CPs was contant throughout all the year round.

소각장별 비산재 중의 중금속 용출 특성 및 존재형태

이우근,김준수,김진범 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-

본 연구는 도시폐기물 소각시설에서 발생되는 비산재 중에 함유된 중금속으 존재형태 및 용출 툭성을 알아보기 위해 수행되었다. 용출 실험은 KSLT, TCLP, MALT법을 이용하였고 중금속의 존재형태별 분포에는 다음과 같이 5가지 형태로 구분하였다.; exchangeable, carbonate, reducible, organic, residual fraction.용출 심험 결과에 의하면 pH 4로 일정하게 유지한MALT법에 의한 중금속 용출량이 가장 높 This study was carried out to estimate the fractional composition and leaching properties of heavy metals in fly ash generated from three municipal solid waste incinerators(MSWI). Three leaching tests are used in this work. These are Korea Standard Leaching Test(KSLT)), Toxicity Characteristic Leaching Procedure (TCLP), Maximum Availability Leaching Test(MALT) method. The fractional composition of heavy metals is classified into five fractions; exchangeable, carbonate, reducible, organic, residual fraction. According to the leaching tests, it seems that the highest amounts of heavy metals are leached by MALT method in which pH of 4.0 maintains constantly. From the results of the fractional composition of heavy metals, above 45% of Cd is leached by the change of pH or/and concentrations at I and J incinerators. And 91% of Cd is extracted under the reducible environment at B incinerator. But Cu may be leached under the strong acidic environment. The amount of Cu at B incinerator is less leached than that of I and J incinerators due to high residual fraction. About 35% of Ni in fly ashes at three incinerators exists in reducible fraction. It is probably leached under the reducible environment. Pb may be leached under the weak acidic environment at I and J incinerators, but in case of S incinerator leached under the strong acidic environment.

폐동맥종양색전증에 의한 돌연사 부검 1예

이기범,양우익 大韓法醫學會 1987 대한법의학회지 Vol.11 No.2

A 23-year old male patient expired suddenly. He was managed at the hospital under the impression of lumbar intervertebral disc herniation. An autopsy was performed and the cause of death was pulmonary tumor embolism, which occluded the main pulmonary artery completely. The primary tumor was located at the left psoas muscle and it was alveolar rhabdomyosarcoma. The primary tumor infiltrated to the iliac vein and sciatic nerve and patient's symptom was due to nerve compression by the tumor.

정전 열 접합을 이용한 Multi-Substrate Bonding

이덕중,주병권,최우범,한정인,조경익,이광배,장진,오명환 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

We performed silicon-to-glass bonding using silicon direct bonding followed by anodic bonding(SDAB). Initial bonding between glass and silicon was caused by the hydrophilic surfaces of silicon and glass ensemble using silicon direct bonding(SDB) method. We found that the bonded specimen using SDAB process had higher strength than one using anodic bonding process only. We performed multiple layer bonding by SDAB, which is glass- silicon -glass as sandwich structure. In the silicon wafer, the (1mm x 2mm x 500μm)-sized cavity was formed by the anisotropic etching of the silicon substrate in EPW(Ethylendiamin-Pyrocatechol-Water). And, the cavity was sealed with glass wafers by SDAB method.

Modified Hogan 법을 이용한 범인두 부전 환자의 인두피판 성형술

진우정,정기범,이현상,고승오 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.4

A competent velopharyngeal sphincter is essential for intelligible speech. If the velopharyngeal incompetence exist, the seal will not be complete during speech, with a resultant hypernasal speech quality. The patient with velopharyngeal incompetence(VPI) may develope other compensatory speech problems. There are many approaches available to correct veolpharyngeal incompetence, which include speech therapy, push back palatorrhaphy, pharyngeal wall implants and pharyngoplasty. This is cases report of velopharyngeal incompetence, which were successfully treated by superiorly based pharyngeal flap, covered with splitted hinge flap of nasal lining mucosa of the soft palate, named modified Hogan method. The advantages of this method are precision in the approximation of the flap due to pentagonal shaped flap design, good flood supply due to omission of the midsagittal incision on nasal lining mucosa, and simplicity than Hogan method.

Zigbee를 이용한 무선 실시간 전광판

金範錫,金星坤,韓必熙,朴樹榮,李宜宣,崔祐榮 明知大學校 産業技術硏究所 2009 産業技術硏究所論文集 Vol.28 No.-

In general, LED display system displays the fixed text in ROM. In this paper, we propose the wireless real-time LED display system in which the text can be easily displayed in any text color and display mode by users And the system can be set up in any place by using Zigbee communication.

도시폐기물 소각공정에서의 다이옥신 배출특성(Ⅰ) : 방지시설의 영향;The Effect of Air Pollution Control Device

김진범,이우근 江原大學校 附設 環境硏究所 2000 環境硏究 Vol.17 No.-

본 연구는 도시폐기물 소각장 배출가스 중의 다이옥신 배출특성을 알아보기 위해 수행되었다. 소각로 내의 각 방지장치에서 측정된 결과에 의하면, 촉매반응탑 입구에서 가장 많은 양의 다이옥신이 측정되었다. 따라서 전기집진기는 다이옥신이 생성되는데 적당한 조건을 제공하는 것으로 보인다. 다이옥신 농도는 계절에 따라 큰 차이를 보여 겨울에 측정된 다이옥신 농도가 가을보다 높았는데, 도시폐기물의 조성, 소각로 운전조건 등이 다이옥신 생성에 영향을 주고 있음을 제시해 준다. This study is carried out to investigate the discharge characteristics of PCDD/Fs from municipal solid waste(MSW) incinerator. According to the results measured at several air pollution control devices(APCDs) are found at selective catalytic reduction(SCR) inlet. Therefore, it concludes that the electrostatic precipitator(EP) provides the appropraiate condition for the formation of PCDD/Fs. The concentration of PCDD/Fs shows a large difference with the season. The concentration of PCDD/Fs in winter is higher than that of autumn, which suggests that the formation of PCDD/Fs is affected by the MSW components and the operation condition of municipal solid waste incinerator(MSWI).