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.

관동맥질환에서 저밀도 지단백 입자 크기의 분포

임효영,김인숙,승기배,강동헌,전두수,장기육,박준철,이수영,홍순조,최규보 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.8

손의 정맥패턴 인식 시스템의 ASIC 구현에 관한 연구

홍동욱,최환수 明知大學校 産業技術硏究所 2000 産業技術硏究所論文集 Vol.19 No.-

In this paper, we present an optimal hardware implementation for preprocessing of a person identification algorithm utilizing vein pattern of dorsal surface of hand. For the vein pattern recognition, the computational burden of the algorithm lies mainly in the preprocessing of the input images, especially in lowpass filtering. We could reduce the identification time to one tenth by hardware design of the lowpass filter compared to sequential computations. In terms of the computation accuracy, the simulation results show that the CSD code provided an optimized coefficient value with about 91.62% accuracy in comparison with the floating point implementation of current coefficient value of the lowpass filter. The post-simulation of a VHDL model has been performed by using the ModelSimTM. The implemented chip operates at 20MHz and has the operational speed of 55.107ms.

Surface Plasmon Resonance 기술을 이용한 인체분비물 혈액형 분석에 대한 연구

홍승범,최동호,안희중,이동석,김응수,최상규,이영보 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

매복 하악 견치의 자가이식술을 이용한 치험례

홍성수,이상호,김동필 大韓小兒齒科學會 1997 大韓小兒齒科學會誌 Vol.24 No.3

Autotransplantation is the transplantation of embeded, impacted, or unerupted tooth, into extraction socket or surgically prepared socket in the same individual. Clinically, successful autotransplantation must show radiolucent space(preiodontal ligament space) between transplanted tooth and supporting bone, lamina dura, no root resorption, no ankylosis, no inflammatory change, and physiologic tooth mobility. It is important that procedure is atraumatic, and the instruments should not contact the root surface during procedure. We performed autotransplantation of impacted mandibular canine that transversely located beneath the apices of the mandibular incisors with uncompletely developed apex. In radiographs and clinical evaluation, this transplant showed successful clinical finding except irregularity of mesial root surface after 14 months. It is concluded that transplantation of canine with 1/2∼3/4 root development provides a good chance of pulp survival, limited risk of root resorption and ensures sufficient final length, and is thus recommended.

치환 Thiobenzamide류와 Benzyl Bromide의 반응에 관한 반응속도론적 연구

홍순영,여수동,임용진 경북대학교 공과대학 1971 工大硏究誌 Vol.1 No.-

The kinetics of the reactions of m­or p-substituted thiobenzamides with benzyl bromde in acetone have been determined by an electric conductivity method. From these reactions, a positive Hammett plot is obtained and a mechanistic possiblity is proposed to account for the results. Some activation parameters have been also calculated.

노인인구에서 대사증후군과 인지기능간의 연관성

홍창형,김은아,정해관,이동우,차경렬,이강수,오병훈 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.4

Objective : The purpose of this study is to find out the effect of ApoE genotype in correlation between metabolic syndrome and cognition of the elderly in the community. Methods : A total of 1,305 subjects (440 men and 865 women) aged 60-98 years were analyzed from preliminary data of Gwangju Dementia and MCI Study (GDEMCIS). The metabolic syndrome was assessed as defined by the modified National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP III). The study questionnaire consisted of demographic characteristics, current and past illness history, drug history, family history of dementia and stroke, and Korean version-Mini Mental State Examination (K-MMSE). We also examined ApoE genotype and analyzed associated factors with metabolic syndrome. Results : Metabolic syndrome was present in 28.6% of the subjects (13.4% of men and 36.3% of women). On multiple logistic regression analysis, low serum HDL cholesterol was associated with an increased risk for cognitive impairment (K-MMSE score≤17) adjusted by age, sex, educational level, and smoking in the presence of ApoE ε 4 allele (OR 0.95, 95% CI 0.92-0.99). Conclusion : These results suggest that serum HDL cholesterol may affect cognitive function in the elderly in the presence of ApoE ε 4 allele.

뉴로 컴퓨팅 시스템 시뮬레이션 언어 개발 및 응용환경의 구축

홍규완,김정수,이수동 울산대학교 1995 공학연구논문집 Vol.26 No.1

대부분의 신경망 시뮬레이션 프로그램은 기존의 언어(C,PASCAL,FORTRAN등)로 구현되었다. 기존의 언어들은 신경망구조와 신경망의 동적행위를 제어하는 데 적합한 자료구조와 문장들을 가지고 있지 않기 때문에 시뮬레이션 프로그램을 작성하거나 모델의 변경에 어려움이 많다. 본 논문에서는 신경망 시뮬레이션 프로그램을 작성하는데 적합한 언어를 설계하였다. 특히 제안된 언어는 신경망 구조를 쉽게 표현할 수 있고 신경망의 동작행위를 효율적으로 기술하기 위하여 층마크로 정의 개념을 도입하였다. 언어는 두개의 DIVISION으로 구성되었다. 하나는 망구조를 기술하기 위한 NETWORK STRUCTURE DIVISION이고 다른 하나는 신경망의 행위를 제어하는 PROCEDURE DIVISION이다. Most of neural network simulation programs have been implemented with the conventional computer languages. It is difficult to implement simulation programs and is various to build neural network, because the languages have not data structures and statements suitable for expressing neural network structures and controlling neural behaviors. This paper describes a neural network simulation language, specifically designed for the development and modeling of neural network applications. It has a layer macro definition concept to express the arbitrary network structures and dynamic neural behaviors easily. It consists of the two divisions. First division describes the network structures. Second division controls the network behaviors.

설명결합사전의 어휘의미 기술

홍재성,박동호,고길수 서울대학교 어학연구소 2001 語學硏究 Vol.37 No.3

This paper will explore and evaluate the《Lexicographic Definition》in the Explicative and Combinatory Dictionary(ECD), in particular, focusing on its methodology of description and representation of lexical meaning. Lexical meaning is one of the most important features of a linguistic dictionary, however, due to its inherent nature, its description and representation in a dictionary precipitates many problems. The crux of the problem is that each word has meanings behind its form and shows semantically continuous variations when combined with other words and phrases. A lexicographer must then determine the full content of the lexical meaning and extract its components, and separate every meaning which is linguistically distinguished from other variations. Moreover, a good dictionary needs and an elaborate methodology for the theoretically and practically adequate representation of the meaning. The ECD, based on the Meaning-Text Model, presents comprehensive rules and criterion addressing precisely these problems. These rules and criterion are the minimal(fundamental) conditions necessary for the coherent representation of full lexical meaning. Furthermore, the ECD represents Lexicographic Definitions in a concise, yet natural(accessible) language. Its definitions describes denotational meaning which are composed of situational information of the sentences usage. This meaning has an additional functional dimension in that its content and component explain and predict the full range of word behavior in any given circumstances. The direct result of this research can be applied to Korean dictionaries and used to improve their semantic descriptions and representation.

인의 흡착능 평가를 통한 인공습지 하수처리 시스템의 여재 선발

이홍재,서동철,조주식,허종수 한국환경농학회 2003 한국환경농학회지 Vol.22 No.2

인공습지 하수처리장이 축적되어 하수처리장 수명의 제한인자로 작용하는 인의 포화치를 조사하기 위해 여재 입경별 최대 인 흡착능을 조사하여 최적의 여재를 선정하였고, 또한 유기물과 굴패각의 인 흡착제로서 사용가능 여부를 조사하기 위해 최대 인 흡착능을 조사하였다. 그리고 인공습지 하수처리장에서 하수처리장의 수명을 연장하기 위한 방안을 검토하기 위해 여재별로 흡착제인 유기물 양을 달리하여 최대 인 흡착능을 조사하였고, 최적으로 선정된 여재에 Ca, Mg, Al, Fe 및 굴패각 첨가에 따른 최대 인 흡착능을 조사하였다. 여재 입경별 최대 인 흡착능을 조사한 결과 여재 입경이 작아질수록 최대 인 흡착능이 증가하는 경향으로 여재 대(4~10 mm), 중(2~4 mm) 및 소(0.1~2mm)의 최대 인 흡착능은 각각 8, 10 및 22mg/kg로서 여재 입경이 0.1~2 mm인 여재소(C)가 최적의 여재이었고, 유기물과 굴패각의 최대 인 흡착능을 조사한 결과 유기물이 1,000 mg/kg 및 굴패각이 833 mg/kg이었다. 입경별 여재에 유기물을 첨가하였을 경우 모든 여재에서 유기물 첨가량이 증가할수록 최대 인 흡착능이 점점 증가하였다. 따라서 인공습지 하수처리장에서 수초에 의해 쌓여 부식된 유기물은 인의 흡착능을 증가시켜 인 처리능력을 향상시킬 수 있을 것이라 사료되었다. 최적 여재인 여재 소(C)에 Ca, Mg, Al 및 Fe를 첨가하였을 경우 모든 조건에서 첨가량이 증가할수록 최대 인 흡착능도 점점 증가하였으며, 특히 Ca 0.1% 첨가시 인 흡착능이 885 mg/kg으로 급격히 증가하였다. 굴패각을 여재에 첨가하여 흡착능을 조사한 결과 굴패각을 2% 첨가시 인 흡착능이 약 22 mg/kg에서 약 36 mg/kg으로 약 14 mg/kg이 증가하였다. The phosphorus(P) adsorption capacities of various filter media were investigated in relation to the size and types of filter media to screen the optimum condition. The objective of this study was to evaluate the constructed wetland longevity by improving P adsorption capacity. The maximum P adsorption capacities of filter media A(4∼10 ㎜), B(2∼4 ㎜) and C(0.l∼2 ㎜) were 8, 10 and 22 ㎎/㎏, respectively, showing those increased as the filter media size decreased. Among the experimental media, the optimum filter media size was 0.1-2 ㎜. When the filter medium was supplemented with organic materials which were piled up and decayed in the constructed wetland, the P adsorption capacity was significantly enhanced. Under the conditions of optimum filter media size, the respective maximum P adsorption capacities of filter media C when supplemented with Ca, Mg, Al and Fe were higher than that of filter media C. However the addition of Ca, Mg, Al and Fe to constructed wetland were not recommended because of the possibility of their secondary pollution. The maximum P adsorption capacity of filter media C was 22 ㎎/㎏, but this was increased to 36 ㎎/㎏ when filter media C was supplemented with 2% oyster shell.