차량 재도색용 청색 페인트의 분석

박성우,손성건,박하선,박성지,정영호,홍성욱,박종신 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

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.

메탄올차량 배기가스 제거용 촉매의 저온활성에 관한 연구

洪鍾盛,丁碩鎭 경희대학교 환경연구소 1993 環境硏究 論文集 Vol.4 No.-

As the major methanol fueled vehicle exhaust components, formaldehyde & methanol conversion over the existing commercial 3-way catalyst was examined in a labolatory flow reactor system. The tested catalyst system were modified silver catalysts which contains different Ag loadings on commercial 3-way catalyst, and german commercial catalysts for methanol engine exhaust manufactured by Engelhard co. Ltd. Silver catalysts were prepared by the wet impregnation of silver nitrate solution on commercial 3-way catalyst. These catalysts were characterized with BET and PSD. In general, the formaldehyde(HCHO) conversion of the tested catalysts was similar to that of methanol(CH3OH). At 100,which is equivalent to the cold start condition, 5 wt% Ag cat. showed the most excellent HCHO and CH3OH conversion. The order of activity for conversion of HCHO & CH30H to carbon dioxide and water vapor was as follows; 5 wt% Ag/3-way cat. > 2 wt% Ag/3-way cat.>german cat. l(front)>german cat. 2(rear)>l0 wt% Ag/3-way cat.>3-wat catalyst. However there was no significant activity difference between those tested catalysts in the hot run condition of 400. Therfore, it could be concluded that the Ag-modified 3-way catalyst was the most effective and practical catalyst system which could be capable of removal the HCHO and methanol at the special condition of low temperature such as cold start condition.

케이블 감속을 이용한 소형 로봇의 개발과 실시간 제어에 관한 연구

홍종성,이정완 江原大學校 産業技術硏究所 2002 産業技術硏究 Vol.22 No.B

In this thesis, a three degrees of freedom robot, which is able to provide sufficient precision for various robot researches, has been developed. The cable mechanism is used as a basic transmission of robot joints. Based on an optimal design strategy, link and joint parameters are determined and then overall geometry of the robot is designed. As an architecture of robot control, real time control system using real time linux and RtiC-Lab(Real Time Controls Laboratory) is developed. This system, written in C and based on Linux O/S, includes text editor, compiler, downloader, and real time plotter running in host computer for developing control purpose. Using these hardware and software, simple PD position control is implemented, the results shows the effectiveness of the system.

하부 요로 폐쇄에 대한 요류 역학적 연구

홍종우,최성협 인제대학교 1990 仁濟醫學 Vol.11 No.2

요류 측정술을 이용하여 전립선 비대증 환자 40례에서 경요도 전립선 절제술후 치료 효과를 평가하여 보고한다. Uroflowmetry has been proposed as a non-invasive screening test and may be used to reveal lower urinary tract dysfunctions, such as benign prostatic hyperplasia, urethral stricture and neurogenic bladder. We tested 40 patient of benign prostatic hyperplasia (BPH) diagnosed with clinical manifestations, IVP and cystoscopy. Group 1 including 15 patients performed both preoperative and postoperative uroflowmetry. Group 2 including 25 patients shown acute urinary retention preoperatively, performed only postoperative uroflowmetry. The results were obtained as follows. 1.In group 1, average preoperative maximum flow rate (MFR) was 7.2 cc/sec and postoperative MFR was 20.1 cc/sec (P<0.01). On flow rate normogram, preoperative MFR of all patients was below -2 standard deviations (SD) and average MFR was -3.1 SD. In postoperative MFR, below -2 SD values showed in 3 patient, -1 SD ~-2 SD in 6, -1 SD ~ mean in 4, above mean values in 2 and average MFR was -1.3 SD. 2.In Group 2, postoperative average MFR was 22.3cc/sec, below -2 SD values showed in 6 patients. -2 SD∼ -1 SD in 5, -1 SD - mean in 8, above mean values in 6 and average MFR was -0.93 SD. 3.MFR values of group 1 increased an average of 2.8 SD in each patient and 80% of patients were improved in uroflowmetry after transurethral resection of prostate (TURP). 4.If MFR of acute urinary retention was below -2 SD in group 2, 76% of patients were improved in uroflowmetry after TURP.

남성유방에 발생한 지방육종

최종범,임성철,기근홍,전호종,서재홍 대한병리학회 1992 Journal of Pathology and Translational Medicine Vol.26 No.3

플라즈마 화학 증착한 텅스텐 및 질화 텅스텐 박막의 미세구조 연구

홍종성 삼척대학교 1997 論文集 Vol.30 No.3

The fine structures for the tungsten and tungsten nitride thin films deposited bt plasma enhanced chemical vapor deposition technique were investigated with x-ray diffraction patterns. x-ray photoemission spectroscopy. and transmission electron microscopy techniques. Tungsten films have been deposited at 350℃ with the WF?-H₂gas systems and tungsten nitride films have been deposited at 350℃ with the WF?-NH₃-H₂gas systems. The resistivity of tungsten films were about 10?-㎝. and crystal structure was α-W (bcc structure). In the annealed films at 900℃. however, the metastable β-W and W silicide (WSi₂, W?Si?) peaks were observed. The resistivity of tungsten nitride films were about 70?-㎝, and crystal structure was W₂N(200), (α-W)+(β-W) and amorphous structures. In other words, the crystals of as-deposited WNx films are metastable in sturctures, but the thermal stability for the W/WNx/Si structure during high temperature annealing are excellent. Thermal stability of PECVD-WNx as a diffusion barrier reveals that the interdiffusions between Al or W and Si substrate can be prevented by N interstitial atoms in fcc-W₂N grains and grain boundaries.

생물변환 천연식용색소 생산공정기술 개발 : Ⅰ. 홍화 황색소의 안정성에 미치는 pH 및 온도의 영향 Ⅰ. Effect of pH and Temperature on the Stability of the Yellow Pigment from Carthamus tinctorious L.

홍성현,박성길,이종민,한태룡,백영숙,정인식 경희대학교 생명자원과학연구원 1999 硏究論文集 Vol.20 No.-

홍화로부터 열에 의한 안정성을 검토하였다. 황색소의 분해반응은 산성, 중성, 염기성 조건에서 UV/Vis spectral measurement에 의해 조사되었다. 시간변화에 다른 흡광도를 측정해 본 결과 온도가 상승함에 따라 황색소의 분해되는 정도가 점차적으로 증가하는 것을 확인 할 수 있었다. 40℃에서 황색소의 분해 반감기는 pH3.0, pH7.0, 그리고 pH12.0에서 각각 112.1, 39.3 과 25.3 시간이었다. 이것은 황색소가 pH3.0에서 비교적 더 안정함을 말한다. pH3.0, 7.0 그리고 12.0에서 황색소의 activation energy는 각각 519, 15.0 그리고 12.3 kJ/mol이었다 We investigated thermal stability of yellow pigment from Carthamus tinctorious L. Decomposition reactions of yellow pigment were monitored at acidic, neutral and alkaline conditions by UV/Vis spectral measurement. Decomposition of yellow pigment increased as temperature increased Decomposition half lives of yellow pigment at 40℃ were 112.1 39.3, and 25.3 hrs at pH 3.0 , pH 7.0, and pH 12.0, respectively, indicating that yellow pigment is more stable at pH 3.0. The activation energies of yellow pigment at pH 3.0, pH 7.0, and pH 12.0 were 51.9, 15.0, and 12. 3 kJ/mol, respectively.

정신병적 증상이 동반된 기면병 1예

홍승철,송정민,정종현,권용실,한진희,이성필 大韓神經精神醫學會 2003 신경정신의학 Vol.42 No.5

Narcolepsy is a sleep disorder characterized by excessive daytime sleepiness, cataplexy, sleep paralysis, hypnagogic hallucinations and disrupted nocturnal sleep. We report a patient with a diagnosis of schizophrenia who was subsequently diagnosed as narcolepsy. A case of a 22-year-old woman with concomitant narcolepsy and psychotic symptoms was discussed from a perspective of the diagnosis and therapeutic challenges, particularly on pharmcological treatment dealing with issues raised by their coexistence.

2000년 부산광역시 서구에서 발생한 세균성이질 역학조사 평가

홍상기,김정규,전진호,손혜숙,이종태 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.3

Purposes : Bacillary Dysentery is one of the representative infectious disease that widely occurred in recent years, Korea. This study was performed to propose the helpful advices for control of Bacillary Dysentery outbreak based on an assessment of the results of epidemiological survey for Bacillary Dysentery outbreak on May 16, 2000 in Busan. Methods : Subjects were 7,188 peoples who showed diarrhea and contacted with active participants in a religious meeting and suspected cases surveyed from May 16 to May 31, 2000. Direct interview about participation, presence of diarrhea, and history of spring water drinking, and rectal swab on the patients who had diarrhea were done. Results : Among 7,188 peoples, 458 patients had simple diarrhea, and 135 patients confirmed infected with Shigella sonnei. Among confirmed cases. 94.8% had actively participated the religious meeting. The first case occurred on May 10, and consecutive outbreak was concentrated on May 12 and 13. Elementary school children(40.7%) and their parents(35.6%), and women(65.2%) were majority of the confirmed cases. Drinking history of the spring water during the meeting was highly suspected as a cause of this outbreak(odds ratio=3.29, 95% confidence interval=1.59∼6.82). Food intake history was not checked because with low possibility of causing factor. Conclusions : This outbreak appear to be closely related to drinking not sterilized spring water when participating in a religious meeting. However, actual route of transmission was not defined because the epidemiological survey was started six days after the first attack, and, could not find the causative agent in the spring water. The prompt epidemiological survey thought to be essential and important when occurred episode. And also, cooperation with the corresponding health authorities would be very important when the outbreak occurred distant area as this episode. Personal and public concerns and efforts should be sustained to prevent the outbreak and spread-out of Bacillary dysentery.