서울의 PPNG 발생 빈도(1991-1992)

김재홍,윤기범,박평원,김영진,전경민,김영태,김중환,곽호,구상완,송민석,유옥,지혜구,김동원,문상은,박영립,정승호,성범진,성순제,엄주용,황정열,이기홍,이주협,전태진 대한화학요법학회 1994 대한화학요법학회지 Vol.12 No.1

The prevalence of PPNG among pretreated gonorrhea cases isolated at the STD clinic of Choong-Ku Public Health Center in Seoul has been studied and reported annually since 1981. In 1991, 123 strains of N.gonorrhoeae were isolated, among which 58(47.1%) were PPNG. In 1992, 98 starains of N.gonorrhoeae were isolated, among which 51(52.0%) were PPNG. In all, 109(49.3%) strains were found to be PPNG among 221 strains isolated between 1991-1992. The prevalence of PPNG in Seoul showed increased tendency till 1989, thereafter, it has been stationary or slightly decreasing.

Fe-27.5 at.% Al 금속간 화합물의 변형거동에 미치는 변형율 속도의 영향

송진화,하태권,장영원 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.11

The effect of strain rate on the room temperature deformation behavior of a Fe-27.5 at.% Al has been investigated in this study. Phase composition and degree of order in Fe-27.5 at.% Al alloy were varied by aging at various temperatures corresponding to phase fields of D03 and B2 to elucidate the effects of microstructure and degree of order on the room temperature deformation behavior. A series of load relaxation tests was conducted and the results were analyzed based on the internal variable theory of inelastic deformation. Room temperature strength of the Fe-27.5 at.% Al alloy was found to increase with decrease in degree of order. All the flow curves could be successfully described by the constitutive equations of the internal variable theory of inelastic deformation and were found to be governed by the frictional stress element. (Received June 20, 2004)

HYPER 빔창주위의 열유동 해석에 의한 안전성 평가에 관한 연구

송민근,최진호,주은선,송태영 경상대학교 생산기술연구소 2000 生産技術硏究所論文集 Vol.16 No.-

A spent fuel problem has prevented the nuclear power from claiming to be a completely clean energy source. The nuclear transmutation technology to incinerate the long lived radioactive nuclides and produce energy during the incineration process is believed to be one or the best solutions. HYPER(Hybrid Power Extraction Reactor)is the accelerator driven transmutation system which is being developed by KAERI(Korea Atomic Energy Research Institute). Some major feature of HYPER have been developed and employed. On-power fueling concepts are employed to keep system power constant with minimum variation of accelerator power. A hollow cylinder-type metal fuel is designed for the on-line refueling concept. Lead-bismuth(Pb-Bi) is adopted as a coolant and Spallation target material. One of the issues related to the HYPER target system is the thermal and mechanical loads imposed on the Pb-Bi and the beam window. FLUENT is used for thermal-hydraulic calculation, and finally stress calculation is performed by ANSYS. A beam condition such as current is varied. The initial velocity of Pb-Bi is also varied.

혈액투석중인 만성신부전 환자에서 골대사 지표로써의 Osteocalcin치

송치운,이진홍,안미애,윤환중,윤상임,성기양,이강현,송민호,이강욱,신영태,김영건,노흥규 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2

Background : Serum osteocalcin is synthesized by osteoblast and has been shown to be sensitive indicator of bone turnover inpatients with various metabolic bone disease. In renal osteodystrophy, serum osteocalcin is elevated due to decreased renal clearance and elevated level of PTH. This study was done to evaluate the usefulness of serum osteocalcin as a marker of bone metabolism and the correlation with other biochemical markers of bone metabolism. Methods : We measured serum osteocalcin, calcium, phosphorus, ALP(alkaline phosphatase) and PTH(parathyroid hormone) in 37 patients with end stage renal disease on hemodialysis. Osteocalcin was determined by radioimmunoassay and PTH was determined by radioimmunometric assay. Results : 1) The mean level of serum osteocalcin in ESRD patients was 233.8± 218.2ng/ml which was significantly higher than that of controls(p<0.0001). 2) The mean level of serum PTH in ESRD patients was 40.5± 43.8pg/ml was significantly higher than that of controls(p<0.005). 3) There was a significant positive correlation between the level of serum PTH, ALP and the level of serum osteocalcin in ESRD patients. 4) By using multiple regression, PTH is most reliable factor that affect to elevated level of serum osteocalcin ( beta coefficient = 0.687, Sig T<0.05). Conclusion : Serum osteocalcin as a marker of bone metabolism in ESRD patients is more useful than other biochemical marker such as serum calcium, phosphorus, ALP and PTH is a most reliable factor that affect to elevated level of serum osteocalin.

소성법에 의한 Li_(2)Ti_(3)O_(7)의 합성 및 리튬이차전지용 부극 물질로의 응용

송연호,이진식,이철태 조선대학교 생산기술연구소 1999 生産技術硏究 Vol.21 No.1

The ramsdellite, Li₂Ti₃O_(7) was prepared by reacting, in air, mixtures of Li₂CO₃ and TiO₂ by calcination at 1050℃, for 12 hrs and was examined a possibility to use as an anode material. Li₂Ti₃O_(7) showed a discharge capacity of 120~140 mAh/g with good cycle ability during the 20 charge/discharge cycles in a Li/1M LiPF6〔in EC-DEC (1:1 by volume)〕Li₂Ti₃O_(7) cell at a current density of 0.15 mA/㎠ and the voltage range 0.5 ~ 3.0V.

자궁내 발육지연이 있는 출생체중 2,500 g 이상인 환아의 주산기 예후에 관한 연구

송태복,조명숙,하진아,윤대석,김철홍,김윤하,최영륜 全南大醫大 2004 전남의대학술지 Vol.40 No.1

복싱 指導者의 職業 價値觀과 職務滿足의 관계

송순천,백태길,김진표 龍仁大學校 武道硏究所 1998 武道硏究所誌 Vol.9 No.1

The purpose of this study was to examine the relationship betwiin work value of boxing coach their job satisfaction. For this purpose, review of the related literatures that work value and job satistaction. This study setting up the population was boxing coaches, and questionnaire survey were conducted to boxing coach who was participated national tournament June 24-29 at SUNG-NAM gymnasium. The subject sampling used cluster sampling method. And data selection considered age, teaching grade of boxing coach. Data selected cluster sampling was 150 and final used data was 107. As an instrument for the collection of data, first, the scale of work value used as a modification Sim, young-gil(1987)'s view by the medel of value of Kluckhohn(1961). And Job satisfaction's scale used the developed JDI(Job Descriptive Index) by Smith (1969) and it translated in Korean and standardized by Cho, young-tak(1996). The Statistics employed in the study were frequencies statistics and one-way ANOVA, ANOVA. As a result of the analysis of collected data, the following conclusions were obtained: 1. A director of boxing, have hegative human relation in relative of coach, others the human relationship of married coach is more actie than single coach. 2. The older boxing coach is satisfied with fob task, satisfaction of task is totally higher than the coach, other and the married coach is higher than single. 3. The positive, active value of job is high the satisfaction about job itself, relative satisfaction of collegue.

복어중독에 의한 가사 상태에서 소생한 1예

송승찬,신진호,강석우,박경남,최호순,박근태,문희식,기춘석,이성희,윤병철,노우균,조균석,이민호 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3

Tetrodotoxin is a neurotoxin produced by about 90 species of puffer fish and causes paralysis of central nervous system and peripheral nerves by blocking the movement of all monovalent cation. Ingestion of tetrodotoxin produces clinical manifestations such as paresthesias(within 10-45 min), vomiting, lightheadedness, salivation, muscle twitching, dysphagia, difficulty in speaking, convulsion and death that expressed by cardiopulmonary arrest with loss of brain stem reflex sometimes. Tetrodotoxin prevents or delays ischemia induced neuronal death by way of following 3 mechanisms. Firstly, it reduces the energy demand of the brain tissues. Secondly, it delays or even prevents anoxic depolarization. Finally, it deminishes ischemia induced cell swelling and cerebral edema. We report a case of puffer fish poisoning which presented with cardiopulmonary arrest and loss of brain stem reflex, but completely recovered by aggressive cardiopulmonary resuscitation.

서울시내에 거주하는 13세-15세 청소년들의 부정교합에 관한 역학적 연구

송경원,김진태 大韓小兒齒科學會 1984 大韓小兒齒科學會誌 Vol.11 No.1

Childrens between the ages of 13 and 15 years, living in Seoul, were examined in order to determine the prevalence and severity of malocclusion in the permanent dentition. This survey encompassed 981 children and an individual chart was prepared for each subject recording an original HMAR score and classification of occlusion according to Angle. Also, subjective evaluation of "treatment needs" was carried out in 581 children. The results were as follows: 1. Of the 981 children in this survey, 12.1 percent showed excellent occlusion. (0 point) 2. The 14 percent of the children who had a score of 24 and above all appeared to belong to the "treatment highly desirable" or "treatment mandatory" category. 3. The incorporation of SAR (Supplementary Assessment Record) into the HMAR can provide more sensitive method for evaluating severity of malocclusion. 4. According to Angle's classification 77.4 percent of all malocclusion belonged to Class Ⅰ, 1.3 percent to Class Ⅱ, Division 1, 0.9 percent to Class Ⅱ, Division 2, and 11.3 percent to Class Ⅲ. 5. The mean HMAR score for Class Ⅰwas significantly lower than for either Class Ⅱ, Division 1 or Class Ⅲ. (P<0.05) 6. A close relationship was found between the degree of "treatment needs" and the value obtained by the HMAR scoring. (chi-square test, p<0.05) The differences between the mean HMAR scores of the various subjectively defined categories were statistically significant. (p<0.001)

HEMT소자의 전송특성 해석을 위한 채널내의 산란율에 관한 양자역학적 연구

송영진,도태영,황호정 중앙대학교 기술과학연구소 1994 기술과학연구소 논문집 Vol.24 No.-

In this paper the rates of two-and three-dimensional scattering are calculated in pseudomorphic ??/??/GaAs HEMT heterostructure systems. The electronic states and wave functions in the square quantum well are determined numerically by the self-consistent solution of Poisson's and Schrodinger's equations. The wave functions and energy levels obtained are used to calculate the major two-dimensional scattering rates in this structure. Polar optical- phonon and acoustic- phonon, piezoelectric, ionized impurity and alloy scattering rates are considered for the first two subbands. This results are compared to the three-dimensional scattering rates also calculated using by the triangular approximation of quantum well in the same structure.