• Journal of the Korean Society for Nondestructive Testing
• /
• v.29 no.6
• /
• pp.525-533
• /
• 2009

Emphasis in the paper is placed on describing guided wave successes and challenges for applications in aircraft and composite materials inspection. Guided wave imaging methods discussed includes line of sight, tomography, guided wave C-scan, phased array, and ultrasonic vibration methods. Applications outlined encircles lap splice, bonded repair patch, fuselage corrosion, water loaded structures, delamination, and ice detection and de-icing of various structures.

• Journal of the Korean Society of Propulsion Engineers
• /
• v.4 no.2
• /
• pp.12-20
• /
• 2000

The numerical analysis, including chemical reaction of an entire ramjet engine is studied to understand the ignition transient mechanism and the dynamic characteristics of the Integrated Rocket Ramjet System comprehensively. Details of how a subsonic combustion environment is established from the supersonic ram air after removal of the inlet port cover, are examined during the ignition transient. Various physical processes are investigated systemically, including ignition, flame propagation, flame dynamics, and vorticity evolution.

• Proceedings of the Korean Society of Plant Pathology Conference
• /
• 2002.11a
• /
• pp.96-97
• /
• 2002

• Journal of Astronomy and Space Sciences
• /
• v.29 no.2
• /
• pp.195-198
• /
• 2012

The dual channel Pierce-Blitzstein photometer (PBPHOT) was productively used at the Flower and Cook Observatory to provide 60 years of study of binary systems and other cosmic objects. We review the history of this instrument, discuss its calibration, and recall some personal and professional interactions with Professor Robert H. Koch.

• 대학교육
• /
• s.147
• /
• pp.114-116
• /
• 2007

중앙대학교(총장 박범훈)는 글로벌인적자원개발대학원(원장 이희수)의 주관으로 2007년 5월 3일 아트센터 9층 멀티미디어세미나실에서 교육인적자원부 수도권대학 특성화 지원사업의 일환으로'글로벌시대의 전략적 인적자원개발'이라는 주제의 국제학술세미나를 개최하였다. 이날 세미나에는 미국 교육학회장을 역임한 세계적 석학인 The Pennsylvania State University의 Kyle Peck 교수 등을 비롯하여 교육인적자원부, 한국직업능력개발원, 중앙대학교, PSI 컨설팅 등 관.산.학.연의 핵심 인사가 참여하였다. 다음은 기조연설 및 주제발표의 내용을 정리한 것이다.

• 한국전기화학회:학술대회논문집
• /
• 2004.06a
• /
• pp.229-232
• /
• 2004

• International Journal of Air-Conditioning and Refrigeration
• /
• v.13 no.4
• /
• pp.184-195
• /
• 2005

This paper describes the recent work on advanced technology concepts applied to air cooled heat exchangers for residential air-conditioning. The concepts include vortex generators for the air-side, micro-fin or flat tubes for the refrigerant-side. Advances in understanding of heat transfer mechanisms, predictive models are discussed.

• Proceedings of the Korean Society of Crop Science Conference
• /
• 2021.10a
• /
• pp.8-8
• /
• 2021

• Journal of Environmental Impact Assessment
• /
• v.4 no.2
• /
• pp.39-57
• /
• 1995

The water quality model SWAT (Soil and Water Assessment Tool) was used in combination with GIS, Arc/Info and GRASS, to evaluate land use impacts in the Delaware River Basin in Pennsylvania. This paper describes application of GIS with the water quality model in the 250 square kilometer Brodhead Creek Watershed. Date used in water quality modeling include 1:250,000 digital elevation models (DEM), soil data, and monitored streamflow and curve numbers, and other input variables.

• Biomaterials and Biomechanics in Bioengineering
• /
• v.3 no.3
• /
• pp.129-140
• /
• 2016

This article reports the development of biodegradable photoluminescent polymer (BPLP)-based nanoparticles (NPs) incorporating either magnetic nanoparticles (BPLP-MNPs) or gadopentate dimeglumine (BPLP-Gd NPs), for cancer diagnosis and treatment. The aim of the study is to compare these nanoparticles in terms of their surface properties, fluorescence intensities, MR imaging capabilities, and in vitro characteristics to choose the most promising dual-imaging nanoprobe. Results indicate that BPLP-MNPs and BPLP-Gd NPs had a size of $195{\pm}43nm$ and $161{\pm}55nm$, respectively and showed good stability in DI water and 10% serum for 5 days. BPLP-Gd NPs showed similar fluorescence as the original BPLP materials under UV light, whereas BPLP-MNPs showed comparatively less fluorescence. VSM and MRI confirmed that the NPs retained their magnetic properties following encapsulation within BPLP. Further, in vitro studies using HPV-7 immortalized prostate epithelial cells and human dermal fibroblasts (HDFs) showed > 70% cell viability up to $100{\mu}g/ml$ NP concentration. Dose-dependent uptake of both types of NPs by PC3 and LNCaP prostate cancer cells was also observed. Thus, our results indicate that BPLP-Gd NPs would be more appropriate for use as a dual-imaging probe as the contrast agent does not mask the fluorescence of the polymer. Future studies would involve in vivo imaging following administration of BPLP-Gd NPs for biomedical applications including cancer detection.