초고속 통신망에서 비디오의 주관적 품질 평가에 관한 연구

강명화,강진석,최연성,김장형 제주대학교 산업기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.1

According to information communication business faces with competitions in a various spheres with the development of multimedia and information communication, the time when we have to make an effort to improve a quality comes from an era when we devote ourselves to quantitative expansion. we will try to perform quality assessments of real-time interactive multimedia service, and so on - in this research and present criteria of new subjective quality assessments which is fit on Korea by analyzing examples of ITU-T and foreign countries and Korea.

남녀대학생들의 성에 대한 지식,태도,경험과 상관변인에 관한 분석 연구

성영자,정연강 중앙대학교 의과대학 의과학연구소 1984 中央醫大誌 Vol.9 No.3

The purpose of this study is to measure the knowledge and attitudes of sexuality of the students. The subject for this paper were 144 college students from C university and D university, locating in Seoul. For the study, it is used the Sexual Knowledge and Attitude Test(SKAT) which was designed by Lief and Reed and revised by Ebert. The sexual knowledge items are composed of 8 areas; relation, development, action, stimulation, orgasm, motivation, reaction, and body image. The attitudes items are composed of 4 areas; Heterosexual relation, sex education, autoeroticism, and abortion. The sexual experiences items are composed of 6 areas; experience, self-conscious, worth-constitution, permit, masturbation, and adjustment. The results of this study are as follows: 1. The first period to learn the knowledge of sexuality is junior school 61.8%, primary school 20.1%, senier school 15.3%, and college 2.8%. 2. The majority respendents learn from their friend 67.4%, from teachers 13.2%, from parents 8.3%, and other's 11.1%. 3. To get the knowledge, they use the dictionary and expert magazine 48.6%, monthly magazine 27.8%, weekly magazine 9.0%, ratio, T.V. 8.3%, and newspaper 6.3%. 4. Sexual knowledge marks 1.529 in maximum level 2.0 Sexual stimulation was highest level(1.651) in sexual knowledge area. The correlation in sexual stimulation and sex(p<0.001) grade (p<0.001) was statistically significant. Sexual relation and sex(p<0.01), grade(p<0.001) was statistically significant. Artificial conception and sex(p<0.001), grade(p<0.01) was statistically significant. 5. Attitude marks 3.070 in maximum level 5.0. Abortion was highest level 3.224 in attitude area. Sex, and age use statistically significant(p<0.05) in masturbation. Abortion in sex grade and age was no significant(p>0.05). 6. Experience marks 1.573 in maximum level 5.0. Degree of conservation was highest level 2.458 in experience area. Conservatism and sex(p<0.001), grade(p<0.001), age(p<0.05) was statistically significant. Sexual experience in sex(p<0.001), grade(p<0.001), and age(p<0.001) was statistically significant. Masturbation frequency in sex(p<0.001), grade(p<0.01), and age(p<0.05) was statistically significant. 7. In stepwise multiple regression, grade 7.5% among knowledge, age 2.7% among attitude, sex37.1% age 6.3% and mother's educational background 1.8% among experience were possible to explain.

호텔레스토랑 부서간 갈등지각 수준에 관한 연구

강상묵,정연홍 한국문화관광학회 2004 문화관광연구 Vol.6 No.1

The objective of this research is to determine the issues related to the internal hotel restaurant management conflicts especially between front line employees and back stage employees. In addition, it is the purpose of this research to measure the level of inter-departmental disputes within different hotel divisions and to offer an effective solution to managing these inter-departmental conflicts. In order to accomplish this research objective, authors, have established non-managerial level employees of food & beverage department and food preparation department of top-class hotels in Seoul. Furthermore, authors propose to study this subject base in order to determine cause and effect of inter-departmental conflicts as presented in this research.

G.729기반 VoIP망 음질의 주관적 평가에 관한 연구

강영도,강진석,최연성,김장형 제주대학교 산업기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.1

This paper researched the scale of subjective speech quality measurement over VoIP(Voice over IP) service which is a component of broadband networks. Though objective parameters of multimedia services like PSNR or Jitter can be easily measured and defined, those factors are not easily met the users' perceptual recognition. It is suggested that the scale of speech quality measurement through the subjective measurement is more adequate for end-to-end speech quality which is composed of sender-side quality, transmission quality, receiver-side quality, which provides the degree of correctness in speakers' representation, the degree of impairment caused by various factors, and the degree of recognition processed speech, respectively. It's also examined by the proposed method and verified by it's availability.

난연성 FREP에 의한 철근콘크리트 보의 전단보강 성능평가

강기연,최기선,한상환,유영찬 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

The purpose of this study is to evaluate the shear strengthening effects of the iFREP(incombustible Fiber Reinforced Epoxy Panel) to the reinforced concrete members and to provide the basic design recommendation for shear strengthening. The main variable were the thickness of iFREP, the amount of stirrup and the type of strengthening. Thirteen specimens were tested under static monotonic loading. From the test results, it was shown that the failure mode of RC beams which are strengthened by iFREP was governed by the delamination of iFREP. The shear capacity of beams strengthened by iFREP can be determined as the summation of the shear strengths provided by concrete, stirrup, and iFREP The shear strength by iFREP should be calculated based on the effective strain of iFREP. Also, the shear strengthening effects of specimen with two-side bonded iFREP is similar to those of specimen with three-side bonded iFREP (U-TYPE).

정확한 Closed-Form 그린함수를 이용한 코플래너 도파로 불연속 해석

강연덕,송성찬,이택경 한국항행학회 2003 韓國航行學會論文誌 Vol.7 No.2

실수축 상의 적분 방법에 의한 정확한 closed-form 그린함수를 이용하여 코플래너 도파로의 불연속에 대한 공간영역 full-wave 해석을 하였다. MPIE(Mixed Potential Integral Eqution)를 풀기 위한 수치계산 방법으로는 삼각형 요소를 이용한 갤러킨 방법을 사용하였다. 경계면에서 삼각형 요소상의 기저함수로는 선형함수를 사용하였으며, 관측점과 전원점이 일치하는 특이점 근방의 적분 계산을 위해 면적분을 선적분 형태로 바꾸어 피적분 함수의 특이점이 사라지도록 하는 해석적인 방법을 사용하였다. 실수축 적분방법에 의한 그린함수를 이용함으로써 불연속에 대한 정확한 특성을 구하였다. By using accurate closed-form Green's functions obtained from real-axis integration method, the full-wave analysis of CPW discontinuities are performed in space domain. In solving MPIE(Mixed Potetial Integral Equation), Galerkin's scheme is employed with the linear basis functions on the truangular elements in air-dielectric boundary. In the singular integral arising when the observation point and source point coincides, the surface integral is transformed into the line integral and the integral is evaluated by regular integration. By using the green's function from the real-axis integration method, the discontinuities are characterized accurately.

치 위생사들의 수행업무 실태조사 : 보건소 및 보건지소를 중심으로

성정희,정연강 중앙대학교 의과대학 간호학과 간호과학연구소 1997 중앙간호논문집 Vol.1 No.2

This study is performed to find the current trends and the desired roles of dental hygienists who are working at the public health centers or it's branches in Korea and to suggest the ideal roles of public health dental hygienists as from dental assisting at present to playing the roles of preventive dentistry affairs in the future. 242 dental hygienists who were working at the public health centers were joind for this study with questionare method and be asked such points as the situations that they are working, present roles they are doing and the desirable roles that they want. The obtained results are as folliwings. 1. 65.8% of dental hygienists were working at the dental clinic of the public health centers and 25.6% of dental hygienists were proved that they were doing the indifferent jobs for dental hygienists. 2. The main role of the public health dental hyginist was rerealed the chairside dental assisting at presnt, and 35.7% of them desired to take a role of preventive dentistry works and 37.2% of them hope to task the oral health education at primary schools. 3. The most of public health dental hygienists deired to focus taking such roles as fluoride mouthrinsing program, oral health education, toothbrushing instruction, pit & fissure sealing, management of school dental clinic and oral health survey, even though they had not been performing the works so much.

흰쥐 경동맥 손상 모형에서 체외 방사선조사에 의한 신내막 과증식억제 : Intercellular Adhesion Molecule-1과 Vascular cell Adhesion Molecule-1의 역할 The Possible Role of Intercellular Adhesion Molecule-1 and Vascular Cell Adhesion Molecule-1

강동헌,승기배,장기육,임상현,정해억,임효영,김연실,채장성,김재형,홍순조,최규보 대한순환기학회 1999 Korean Circulation Journal Vol.29 No.9

초고속 통신망에서 비디오의 주관적 품질 평가에 관한 연구

강명화,강진석,최연성,김장형 濟州大學校 産業技術硏究所 2001 산업기술연구소논문집 Vol.12 No.1

According to information communication business faces with competitions in a various spheres with the development of multimedia and information communication. the time when we have to make an effort to improve a quality comes from an era when we devote ourselves to quantitative expansion. we will try to perform quality assessments of real-time interactive multimedia service. and so on - in this research and present criteria of new subjective quality assessments which is fit on Korea by analyzing examples of ITU-T and foreign countries and Korea.

『鄕藥集成方』의 데이터베이스 구축을 위한 원문의 전산처리

강연석,안상우 한국한의학연구원 2001 한국한의학연구원논문집 Vol.7 No.1

The 85 books were compiled into Hyangyakjipseongbang(鄕藥集成方) at the period of the king Sejong(世宗). That books were assembled on the late stage of the Korea dynasty(高麗) and the first stage of the Chosun dynasty(朝鮮). It is a great work on medicine and a textbook of native herbs representing independent medicine of the dynasty of Chocun. The original text was written in technical chinese character terms and this was processed with a newly developed text cognizance program which helped decrease the time and energy needed and increase accuracy. We hope that the ground work and experience gained from this process would be analyzed and used for future in computerized information management for medical classic literature.