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박재선(Park Jae-Sun),김광현(Kim Gwang-Hyun) 한국콘텐츠학회 2005 한국콘텐츠학회 종합학술대회 논문집 Vol.3 No.2
이동통신사의 다양한 플랫폼은 콘텐츠 개발회사의 다중개발에 의한 경제적 손실을 발생시키고 경쟁력 약화로 이어져 다양한 콘텐츠 개발에 집중하지 못하고 있는 문제점을 안고 있다. 이를 해결하기 위한 방안으로 기존의 무선인터넷 플랫폼 환경을 WIPI(Wireless Internet Platform for Interoperability)라는 모바일 표준 플랫폼으로 표준화하게 되었다. WIPI 표준 플랫폼은 다운로드에 의한 DLL(Dynamic Linking Library)을 지원함에 따라 무선망을 통해 동적으로 API (Application Programming Interface)를 추가/갱신하는 기능을 제공한다. 본 논문에서는 메모리 사용을 최소화 및 최적화하여 성능을 개선한 콘텐츠 뷰어를 개발하고, 이를 통해 동적 API 추가 및 갱신 모듈을 구현함으로써 효율적인 WIPI 콘텐츠 제작 환경을 제공하고자 한다.
일측성질폐쇄 및 동측신장무형성을 동반한 중복자궁의 진단과 치료
박재선 ( Jae Sun Park ),안상태 ( Sang Tae Ahn ),김미란 ( Mi Ran Kim ),황경주 ( Kyung Joo Hwang ) 대한산부인과학회 2009 Obstetrics & Gynecology Science Vol.52 No.7
Uterine malformations consist of a group of miscellaneous congenital anomalies of the female genital system, and these anomalies are the result of major disturbances in the development, such as formation or fusion of the Mullerian or paramesonephric ducts during fetal life. The Mullerian anomalies have been estimated to occur in up to 0.001~10%, and these anomalies may be associated with numerous congenital anomalies, and ipsilateral renal anomalies especially are the most common. The uterine didelphys with obstructed hemivagina and ipsilateral renal agenesis clinically may result in dysmenorrhea, low abdominal pain, endometriosis or pelvic mass after menarche. Furthemore the delayed diagnosis causes infertility and poor pregnancy outcome due to continued retrograde menstruation which leads to endometriosis and distorted pelvic anatomy. These anomalies could be diagnosed with ultrasonography and MRI that have the high sensitivity and specificity. Excision of vaginal septum and marsupialization are appropriate treatments to relieve symptoms and reserve fertility. We report 7 cases of uterine didelphys with obstructed hemivagina and ipsi-unilateral renal agenesis with a brief review of relevant literatures to help understand these anomalies.
축력과 양단 대칭모멘트를 받는 이중곡률 스테인리스 원형강관 보-기둥의 좌굴내력에 관한 실험적 연구
박재선 ( Jae Seon Park ) 조선대학교 공학기술연구원 2009 공학기술논문지 Vol.2 No.2
This study is a series of experimental investigation on the buckling strengths of eccentrically compressed cold-formed stainless steel circular hollow section beam-columns. The principal parameters in this study are slenderness ratios(L(k)/r= 30, 50, 70) and magnitude of eccentricity e(one way: 0, 25, 50, 75, 100 mm, the other way: 0, 12.5. 25, 37.5, 50 mm) on the symmetrical end-moment of a double curvature. Objectives of this paper are to obtain the maximum loads by performing an experimental work and to compare the experimental behaviors with analytical results. The ultimate buckling strength of circular section members are evaluated by a numerical method in accordance with the bending moment-axial force(M-P) interaction curves. The behavior of each specimen is displayed in the form strength-displacement and moment-angle(M-□) relationship. The numerically obtained ultimate buckling interaction curves of beam columns show a reasonably good agreement with the available experimental results of slenderness ratios 30 and 50. But experimental results of slenderness ratios 70(e/k = 0, 15) "``/ere below M-P interaction curve.