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장자영,노순국,박종천,김재섭,박성렬,박창균 조선대학교 동력자원연구소 1996 動力資源硏究所誌 Vol.18 No.1
To predict accurately an antenna radiation pattern is very important for determining of a service area, base-station location, cell design. In this paper, we have calculated a propagation prediction data of Hata, Egri, Carey, Free Space Loss model by a computer simulation in Kwang-ju downtown, and the data is compared with field test data. As a results, Hata and Egri model are approached to field test data, but considerable errors are detected.Conclusively, we believe that the most accurate prediction model must propose to improve the radio propagation environments for the specified region. For resolve these problems, we are proposed a mew experimental radio wave propagation predict model.
건축설계실무와 의사결정에 관한 사례 연구 : 공공프로젝트의 경우 Case of Buchon Welfare center and Yonsu Sub-municipal Office
장성준,서윤영,이현창,하종수 명지대학교 대학원 1997 대학원논문집 Vol.1 No.-
The study analyzes a series of decisions made by Building Construction Review Committee on public building construction project. Several government authorities are engaged on the review and required the building client authority to revise the design according to revise items suggested by the committee members ranging from Architectural Planning to other Building Engineering fields. The study delves the legal and design aspects of the review, the meaning of private, semi-public and public function of building, and the construction policy. Two Public building projects were analyzed in terms of revise items. We found some patterns of problem and the current review system works to promote technical aspect of the building and to keep public entity of the projects.
동적 GTM와 BMA을 이용한 움직이는 객체의 얼굴 검출
장혜경,홍종선,강대성 동아대학교 정보기술연구소 2003 情報技術硏究所論文誌 Vol.11 No.1
This paper estimates dynamic object information in video stream and proposes face detection technique using dynamic GTM(genetic tree-map) algorithm. The existing general object estimate methods divided image information through cluster process, and estimated as reconstructing the moving object of the separate information. On the other hand, proposed method obtains object information that is moving in video stream as taking advantage of BMA(b1ock matching algorithm) and employs PCA(principal component analysis) as cluster algorithm. PCA algorithm searches for principal components utilizing statistical properties for input data, and then divides data making use of region division algorithm. Only face region is detected in specific object abstracted using separate object information, according to dynamic GTM map information generated about feature of face region using dynamic GTM.
결과의 지식(K.R) 제시유형이 농구기능 학습에 미치는 효과
장인석,신현주,진성룡,김종환,김천년 慶熙大學校 體育科學大學 1990 體育科學論叢 Vol.- No.3
The purpose of this study is to investigate the effect of K.R on motor learning of basketball. The subject of this experiment were 90 women students, the second class highschool. They were no apparent physical defects and experiment of basket ball. The subject were divided into three groups ; verbal feedback, visual feedback and verbal+visual feedback groups. In each groups, 30 students were assigned. For the study, the skill test were pass, dribble, shot and combination of basketball. Each group was taught for 12 hours of basketball skill selected for the study. However, teaching methods were different a way of furnished K.R. The classes were three of basketball progam of physical education curriculum at high school. For the data analysis, one-way analysis varianace, turky's-test was employeed. As a result of this study, conclusions were as follow : 1. In part of both pass skill and shot skill, the verval+visual feedback groups were most effcetive among the other groups. 2. For the dribble skill, the verval+visual feedback group was more effective than the verval feedback group. 3. In the case of combination-skill, there have been no significant difference among the three groups.
Bortezomib과 Dexamthasone으로 치료한 골수외 형질세포종 4예
백종현,이은영,장리라,손창배,신은경,서정아,이지숙,이호섭,이상민,신성훈,김양수 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2
Despite the use of aggressive local and systemic treatment including autologous stem cell transplantation in multiple myeloma, extramedullary recurrences are common and the prognosis of these patients is poor. Many novel drugs such as thalidomide, lenalidomide and bortezomib improve the response of treatment of multiple myeloma, but some reports failed to describe thalidomide has effect in extramedullary plasmacytoma. Recent data report on the successful treatment plasmacytomas with bortezomib in patients with advanced multiple myeloma. We treated 4 relapsed or refractory extramedullary plasmacytomas with bortezomib at our institution. We recognized all these extramedullary plasmacytomas decreased and showed more than partial response. This report lends support to the efficacy of bortezomib in the treatment of plasmacytoma and describes the safe use of bortezomib. Responses may, however, be of short duration. Therefore, despite our limited experience, we propose that bortezomib may be considered a therapeutic option for such patients who have risk of radiation therapy
퍼지 제어기 소속함수의 추정을 위한 진화프로그래밍 이용에 관한 연구
김승철,장종승,강신출,임영도 東亞大學校 附設 情報通信硏究所 1996 情報通信硏究所論文誌 Vol.4 No.1
On this paper, the design of fuzzy adaptive controller using an evolution programming combining fuzzy controller to be very effectove in the optimization problem will be proposed. On a proposing control structure, the optimization takes uncertain plants optimized membership function using EP, and we want to take an adaptive controller in the plant as well be adapted control structure to initiate approximate membership function in fuzzy. We show that proposed controller have a good performance than general fuzzy controller through a computer simulation and the real-time control of DC serve motor.
모세관 전기영동법을 이용한 1,2,4-트리메틸벤젠 대사체의 분석
강종성,홍정희,임정미,이용문,장재연 충남대학교 약학대학 의약품개발연구소 1999 藥學論文集 Vol.15 No.-
방향족 탄화수소인 tnmethylbenzene (TMB)은 그 사용량이 늘어갈 뿐 아니라 직업적으로 폭로되는 양도 증가하고 있으므로 생물학적 모니터링 및 흡수, 대사, 배설에 관한 연구가 중요시되고 있다. 일반적으로 TMB는 간의 산화효소에 의해 하나의 메틸기가 산화되고 이것은 glycine과 포합되어 배설되는 것으로알려져 있다. 본 연구에서는 1,2,4-TMB의 대사체를 합성하고, 모세관의 전기영동법으로 분석할 수 있는 방법을 개발하였다. 모세관 전기영동법으로 흰쥐의 뇨 중에서 1,2,4-TMB의 대사체인 3,4, 2,4, 2,5-dimethylbenzoic acid 및 3,4 2,4 2,5-dimethylhippuric acid를 분석하기 위하여 내경 75㎛, 총길이 35cm (검출기까지 29cm)인 용융실리카 모세관을 15℃로 유지하면서 양단에 10kV의 전압을 걸어주고, 전해질로는 15mM β-CD, 3% 2-프로판올을 포함하는 01m 인산완충액 (pH 7)을 사용하였으며, 검출신호는 UV 210nm와 254nm에서 동시에 모니터링하였다. 뇨 시료의 분석 결과 배설된 1,2,4-TMB의 대사체의 상대량은 3,4-이성질체가 56.&%, 2,4-이성질체가 30.5%, 2,5-이성질체가 12.8%였다. 이 방법은 노동자의 뇨 분석에도 적용될 수 있을 것으로 생각된다. The metabolites of 1,2,4-trimethylbenzene (TMB) were synthesized and determined by capillary electrophoresis (CE). The optimum conditions of CE for the separation and determination of 3,4-, 2,4-, 2,5-dimethylbenzoic acid and 3,4-, 2,4-, 2,5-dimethylhippuric acid from the rat wine were as following: the fused silica capillary(75μm i.d. X 36 cm length, 29 cm to detector) was used and kept at 15℃ The applied voltage was 10kV and compounds were detected at UV 210 nm and 254 nm. The running electrolyte was 0.1 M phosphate buffer (pH 7) contalI1ing 15 mM of β -CD and 3% of 2-propanol. The relative amount of the metabolite of 1,2.4-TMB in the rat urine was 56.7% of 3,4-isomer, 30.5% of 2,4-lsomer and 12.8% of 2,5-isomer. This method can be applied to the analysis of TMB-metabolites in human wine.
정종설,이용성,신기훈,정성균,장동영 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-
This paper presents a study on the failure characteristics of SnAgCu lead-free solder balls. To estimate the effect of Ag, three types of SnAgCu balls are first prepared by varying the weight percent of Ag (1.0, 3.0, 4.0 wt%) and then analyzed by reliability tests such as thermal shock, high speed ball shear, and drop tests. Thermal shock test reveals that the higher the weight percent of Ag is, the longer the fatigue life becomes. To the contrary, high speed ball-shear test and drop test show that the shear strength and the fracture toughness of solder balls are inversely proportional to the weight percent of Ag, respectively. Reasons for these observations will be further investigated in the future work.