• 제목/요약/키워드: Civil & Environmental Engineering

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Case Study on Course Plan of Introductory Engineering Design for Students Majoring Civil and Environmental Engineering (토목환경공학과 특성을 고려한 공학입문설계 학습지도 사례연구)

  • Park, Ji-Ho;Chun, Young-Woo;Kim, Young-Uk
    • Journal of Engineering Education Research
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    • v.15 no.2
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    • pp.52-57
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    • 2012

  • This study summarized the case study of a course development of introductory engineering design considering the characteristics of civil and environmental engineering. The course mainly depends on conducting the design projects. The self-developed text book for the course consists of learning and activities of the core elements for the creation and decision of ideas and two independent design projects. Especially, the design project drew from a survey of students majoring in civil and environmental engineering and is well knitted to help students obtain the potential for soft-landing at higher major courses.

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The Research of Beach Deformation after Construction of the Jetties

  • Park, Sang-Kil;Han, Chong-Soo;Roh, Tae-Young;Park, O-Young;Ahn, Ik-Seong;Lee, Ji-Hun
    • International Journal of Ocean System Engineering
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    • v.1 no.4
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    • pp.185-191
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    • 2011

  • This research was described the prevention of coastal topographical change and sediment diffusive concentration incoming from small estuary after construction jetties. This structure is constructed to decrease sediment deposition incoming from the upstream river due to the urbanization and industrial development and to minimize effects on the coastal ecosystem. The physical modeling and numerical modeling for waves were conducted to analyze the configuration of Imrang sand beach deformation without and with construction of jetty. The specification of the installed jetty, which is able to control sedimentation concentration was decided based on the prediction of the Imrang beach area changes by space and time. As a result, the jetties constructed in the estuary retarded the rate of sand sediment, so that the effect area of sand sedimentation was obviously decreased. In addition, the measured field data indicated that the sediment deposition inside of dikes could be controlled and the right side area of jetties could be preserved without sediment deposition.

  • https://doi.org/10.5574/IJOSE.2011.1.4.185 인용 PDF

Evaluation of Initial Operation Stability of Hydrogen-Fueled, Low-Temperature Solid Oxide Fuel Cell with Sputtered Ni Thin-Film Anode (스퍼터링 니켈박막 연료극 적용 수소공급 저온 세라믹 연료전지의 초기작동 안정성 평가)

  • SANGHOON JI;WEONJAE KIM;SANGJONG HAN;HYANGYOUN CHANG;NARI PARK;MISEON KIM;SUNGWON KANG;HYUNMAN LIM;JINHONG JUNG;KWANGHO AHN;MIRATUL MAGHFIROH;SUK WON CHA
    • Journal of Hydrogen and New Energy
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    • v.33 no.6
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    • pp.743-748
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    • 2022

  • The initial operation stability of hydrogen-fueled, solid oxide fuel cell with Ni thin-film anode fabricated by direct current sputtering was evaluated in terms of electrochemical properties such as peak power density, open circuit voltage, overpotential, and alternating current impedance at 500℃. Hydrogen and air were used as anode fuel and cathode fuel, respectively.

  • https://doi.org/10.7316/KHNES.2022.33.6.743 인용 PDF KSCI