http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
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.
鮟鱇網 漁具漁法의 改良에 關한 硏究 Ⅴ : 展開帆의 性能
洪聖根,宋之浩,趙鳳坤,朴鍾洙 군산대학교 1981 群山水産專門大學 硏究報告 Vol.15 No.1
We have been developed improved stow net and operated with it in the field. In order to study on the efficiency of otter sail of the improved stow net, we made a model experiment in a circular water tank. The findings are as follows. 1.In proportion to increase water velocity, the height of canvas o.s get lower, the decided fromula is obtained as h(%) = 77.7v-0.087 2.Resistance of otter sail is higher than board type. The hydrodynamic pressure is not perpendicular to the o.s, but inclination backward. 3.The decided formula of developing force, and resistance of otter sail is obtained as table 3. 4.Developing force is 15 to 25% of all resistance of fishing gear, resistance of otter sail is 12-18% and hydrodynamic efficiency is about 1.35. 5.Center of hydrodynamic pressure is 0.38 from the fore edge of otter sail and it may use Helmholtz's formula as it is. 6.The most effective angle of attack is about 26˚, the shearing coefficient at the time is 0.7 and the drag coefficient is 0.5. 7.To increase or decrease the buoyancy and weight of otter sail have not influenced distinctly. 8.Aspect ratio is the most effective in 2.5. 9.The joining position of fore bridles have not influenced on the efficiency of otter sail.
메모리 공유형 다중 프로세서의 동기화를 위한 Spin-Lock 기법의 성능 분석
홍춘표,이종임,남상균 대구대학교 과학기술연구소 1997 科學技術硏究 Vol.4 No.3
Most of the shared-memory multiprocessor system provide a hardware primitive for supporting mutually exclusive accesses to shared data. The hardware primitive consists of instructions that atomically read and write a single memory location. When a processor is accessing a shared data, the lock is set to busy, and other processors must wait until the lock is released. This paper analyse the characteristics of four spin-lock alternatives, and compare the performance of the proposed scheme through the simulation on shared-memory multiprocessor (Sequent-Balance). The simulation results show that all the spin-lock alternatives for synchronization degrade overall performance as the number of spinning processors increases. In addition, a variant of Ethernet backoff scheme shows good performance even for large numbers of spinning processors. Because of its simplicity, backoff scheme has better performance when there is no contention for the lock.
Sisomicin고생산 균주의 예비선별과 이들의 생리적 특성
洪淳德,金鐘國,李相瀚,河相哲 慶北大學校 1991 論文集 Vol.51 No.-
In order to isolate selectively sisomicin over-producers during mutagenesis, several conditions required for fragmentation, mutagen treatment, and selection of mutants were examined. As a result, up to 30% yield-up of the antibiotic production of a candidate was achieved. For the step of scale-up, effect of antifoaming agent in small scale with flasks was studied. Palm oil was very effective within the range of without inhibiting of growth. Water addition during the fermentation enhanced 10% of sisomicin productivity than that of control.
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.
홍민성,김종민 한국공작기계학회 2003 한국생산제조학회지 Vol.12 No.6
Feul-Cell system consists of fuel reformer, stack and energy translator. Among these parts stack is a core part which produces electricity directly. In order to set a stack module, fabrication of appropriate stack, design of water flow path in stack and control of coolant are needed. Especially water or air is used as a coolant to dissipate heat. The different temperature of each electric cell after cooling affects the performance of the stack Therefore, it is necessary that the relationship between coolant, heating rate, width of stack, properties of stack, and the shape of water flow path must be understood. For the optimal design, the computational simulation by CFD-ACE, has been conducted and the resulting database has been constructed.
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.
홍상은,이병수,조충호,이상정,주경수,안종근,황순기 순천향대학교 1994 논문집 Vol.17 No.1
It has been rapidly given to the importance of the embodiment of the efficient computer systems in university education. Since the recent trend of the adoption of the openess policy in university education systems significantly affects on the realization of the embodiment of the efficient computer systems which is very essential to promote the international competition in many areas of university education. So it is greatly needed that our Soonchunhyang university must have the following principles for the embodiment of the efficient computer systems. (1) It is required that the appropriate computer education and the good quality of research environment must be given. (2) The establishment of the synthetic computer network system for efficient the university administrations is needed. (3) It is needed to establish the computer system for the consideration of the future performance. (4) It is also needed to improve the organization and the administration systems of the university computer center. (5) It is required on the establishment of the local area network(LAN) systems in the Soonchunhyang university, and the LAN must be connected to other outer national and international computer systems. And we propose the following requirement for the establishment of the convienent computer systems in our university and we have been greatly though about the significant change of the environment in university computer system. [1] The subject of the basic computer must become as the required subject for the all students in the curriulum. [2] The new computer systems both in hardware and software must be introduced. [3] It is needed to the change of the present name of the university computer center into the university information and computer center. And its organizations must be furthur developed [4] The training center for the university emploee is also needed. [5] The establishment of the database systems for the automtion of the university administation is needed. [6] It is strongly required on the establishment of the local area network system in the Soonchunhang university to connect the Bitnet and the Internet through the Hankook communication. [7] The computerization for the central library is needed. The indepent local area network system for the library is also needed to establish the own database system. Finally we hope that the LAN will be connected to the national wide library computer system.