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서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)
김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3
Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of 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 means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : 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 45.5% in 1997.
다발성 천공술 및 혈관 부착 골이식술을 시행한 대퇴골두 무혈관성 괴사의 예후 : 수술 후 바늘구멍 골신티그라피의 유용성
김성훈,천경아,박영하,정수교,정용안,손형선,송문갑 대한핵의학회 1999 핵의학 분자영상 Vol.33 No.4
Purpose:It is important to evaluate the healing process of avascular necrosis (AVN) involving femoral head after treatment. The purpose of this study was to assess the usefulness of pinhole bone scintigraphy in the AVN of femoral head after surgery. Materials and Methods: We analyzed the changing pattern of pinhole bone scintigram in 21 femoral heads of 16 patients (14 lesions/11 male, 7 lesions/5 female, mean age: 39.4 yrs) before and after multiple drilling or vascularized bone grafting for AVN of the femoral head. In all patients, pre-operative scintigrams were obtained at 1 to 3 months before treatment and the first post-operative scintigrams were obtained at 1 to 3 months after treatment. All patients were followed for 2 to 4 years after operation. Results: The findings of the pinhole scintigrams were divided into three patterns: 1) curvilinear, 2) scattered spotty and 3) undetermined. The 10 of 11 lesions with curvilinear pattern had good postoperative clinical and radiological follow-up findings. However, all 6 lesions with scattered spotty pattern showed poor postoperative findings, which necessitated total hip joint replacement. Of the 4 lesions with undetermined pattern, 2 required total hip joint replacement. There was significant difference in postoperative prognosis between the curvilinear and scattered spotty patterns (p<0.05). Conclusion: We conclude that the pattern of pinhole bone scintigram obtained within 1 to 3 months after multiple drilling or vascularized bone graft operation is a useful prognostic indicator in the AVN of femoral head. (Korean J Nucl Med 1999;33:405-12)
Kim, Ju-Hyung,Park, Hong-Gun,Han, Hee-Kab,Mun, Dae-Ho Elsevier 2019 Applied acoustics Vol.155 No.-
<P><B>Abstract</B></P> <P>This study experimentally investigated the effect of reinforced concrete structure type on the propagation of low-frequency heavy impact sounds below 100 Hz in apartment units. Field measurements were conducted for two floor plans each in wall-slab and wall-slab with columns structure types. Measurements were made repeatedly in four identical units for each floor plan at different stories to minimize inherent variations in field measurements. A bang machine was used to produce an impact sound in the center and corner of the largest room in the unit. Slab and wall accelerations were recorded, as was the sound level, in the unit below the bang machine to verify the relationship between structural dynamic properties and the heavy impact sound level. Test results indicate that the differences in impact sound level between the two structure types were negligible in the case of center-of-room excitation. On the other hand, in the case of corner-of-room excitation, units in wall-slab with columns buildings generated significantly greater impact sound level than units in wall-slab buildings particularly at the structural mode frequencies. This result can be attributed to the inability of the lightweight nonstructural walls in the wall-slab with columns buildings to restrain the vibration of the slab corner. Accordingly, lightweight nonstructural walls significantly increased the slab acceleration in the case of corner-of-room excitation. To verify this observation, the slab constraint conditions at the boundaries imposed by the concrete walls or lightweight nonstructural walls observed in the field tests were validated by finite element analysis.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The propagation of sound and vibration due to heavy impact was studied. </LI> <LI> Targeted reinforced concrete wall-slab and wall-slab with columns structures. </LI> <LI> Building acceleration and room sound were measured for different floor plans. </LI> <LI> Non-structural walls were found to increase low-frequency slab acceleration and thus noise. </LI> <LI> Room layout and structure type both have a significant effect on low-frequency heavy impact sound. </LI> </UL> </P>
김갑득,박준석,류명곤,강명희,이종안,김승렬,장인성,박상문,현석천,송화식 대한응급의학회 1998 대한응급의학회지 Vol.9 No.1
Experinece in the management of 74 patients with delayed traumatic intracranial hemorrhage(DTICH) of 474 head injury from January 1996 to December 1996 is presented with emphasis on the incidence, occurring time, risk factors and outcome. The incidence of DTICH was 15.6% of all hospitalized head-injury patients. After an injury, every patient had an immediate computerized tomography(CT) scan to diagnose intracranial pathology and then CT follow-up was carried out according to intial CT finding and neurological deficit. The lesion was almost occurred in patients with initial abnormal CT finding(85.1%). 82.4% of DTICH were noted within 72 hours after injury. The delayed epidural hematoma and intracerebral hemorrhage were almost noted in first 72 hours(>90%), but the delyed subdural hemorrhage was found after a time interval varying from 6 hours to 10 days. So we strongly recommend CT follow-up in 4-8hour, 24-72 hour, and then 7th day after head injury, especially in patients with initial abnormal CT findings. The risk factor of the delayed lesion was not hypotension, hypoxia, and consciousness level, but age of patients and the initial CT finding. The development of DTICH was not heralded by neurological deterioration. The prognosis of DTICH was not worse than non-DTICH. The patient with delayed subdural hemorrhage was better than the patient with non-delayed lesion(including hemorrhage and normal CT finding).
SCADA 시스템에서 병렬화 기법을 적용한 효율적인 데이터 처리 연구
곽종갑 ( Jong-kab Kwak ),진문광 ( Mun-kwang Jin ),김태호 ( Tae-ho Kim ),김필석 ( Pil-suk Kim ) 한국정보처리학회 2012 한국정보처리학회 학술대회논문집 Vol.19 No.2
SCADA 시스템과 같이 대규모의 데이터를 일정 시간이내에 처리하는 시스템 환경에서 가장 중요한 요소 중 하나가 성능이다. 사용자에게 직관적이며 편리한 UI를 제공하며 개발자는 유지보수성, 재사용성 등을 충분히 고려하여 시스템을 구현하여도 일정 성능 이상을 만족시키지 못한다면 사용할 수가 없다. 이러한 점을 고려하여 본 논문에서는 앞으로 SCADA 시스템이 감시, 제어하는 설비의 증가와 시스템 규모의 다양성 및 확장성을 갖춰야 함을 인식하고 다양한 성능향상 방법 중 소프트웨어 측면에서 병렬화 기법을 이용한 데이터 처리 방법을 소개한다.