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  1. No Access

    Article

    Noncontact stress measurement technique for concrete structure using photoluminescence piezospectroscopy

    Photoluminescence piezospectroscopy (PLPS) is a laser-based noncontact and nondestructive stress measurement technique but has not been studied extensively in the field of civil structural health monitoring. U...

    Namgyu Kim, Jong-Jae Lee in Journal of Civil Structural Health Monitoring (2021)

  2. No Access

    Article

    Formalization of information: knowledge and belief

    Billingsley (Probability and measure, Wiley, New Jersey, 1995) and Dubra and Echenique (Math Soc Sci 47(2):177–185, 2004) provide an example to show that the formalization of information by

    Jong Jae Lee in Economic Theory (2018)

  3. No Access

    Article

    A comparative study on wind loads between design standards for the design of pipe-rack structures

    Industrial plants currently account for approximately 70 percent of overseas construction but still require design knowledge when evaluating the economic profit in the field of plant engineering. Most engineer...

    Jong-Han Lee, Jungwon Huh, Jong-Jae Lee in KSCE Journal of Civil Engineering (2016)

  4. No Access

    Article

    Nitric oxide emissions and combustion performance of nontraditional ring-fired boilers with furnace geometries

    The flow, combustion and emission characteristics of nontraditional ring-fired-type furnaces were investigated numerically to evaluate the effects of incorporating additional inner water walls on the heat tran...

    Yonmo Sung, Cheolyong Choi, Cheoreon Moon in Journal of Mechanical Science and Technolo… (2015)

  5. No Access

    Chapter and Conference Paper

    Smart Sensor Nodes for Vibration Measurement of Large Civil Infrastructure

    Dynamic characteristics of large civil infrastructures have been monitored for safe operation and efficient maintenance of the structures. To measure vibration data, the conventional system uses cables which c...

    Jong-Jae Lee, Young-Soo Park, Won-Tae Lee in Dynamics of Civil Structures, Volume 4 (2014)

  6. No Access

    Chapter and Conference Paper

    Practical Seismic FSSI Analysis of Multiply-Supported Secondary Tanks System

    The recent explosion of nuclear power plant (NPP) in Japan was mainly due to performance malfunction in cooling system caused by an earthquake. Thus, seismic analysis has been of great importance for auxiliary...

    Nam-Gyu Kim, Choon-Gyo Seo, Jong-Jae Lee in Dynamics of Coupled Structures, Volume 1 (2014)

  7. No Access

    Chapter and Conference Paper

    Spatiotemporal Sensing for Pipeline Leak Detection Using Thermal Video

    Auto Modulating Pattern Detection Algorithm (AMP) is a novel data processing technique to detect adverse hazards for various monitoring applications. This ongoing experimental study seeks to expand the one-dim...

    Ganesh Sundaresan, Seung-Yeon Kim, Jong-Jae Lee in Structural Health Monitoring, Volume 5 (2014)

  8. No Access

    Article

    Sulfur deposition simulations over China, Japan, and Korea: a model intercomparison study for abating sulfur emission

    In response to increasing trends in sulfur deposition in Northeast Asia, three countries in the region (China, Japan, and Korea) agreed to devise abatement strategies. The concepts of critical loads and source...

    Cheol-Hee Kim, Lim-Seok Chang, Fan Meng in Environmental Science and Pollution Resear… (2012)

  9. Article

    Open Access

    Effective Prediction of Thermal Conductivity of Concrete Using Neural Network Method

    The temperature distributions of concrete structures strongly depend on the value of thermal conductivity of concrete. However, the thermal conductivity of concrete varies according to the composition of the c...

    Jong-Han Lee, Jong-Jae Lee, Baik-Soon Cho in International Journal of Concrete Structur… (2012)

  10. No Access

    Article

    Stability number prediction for breakwater armor blocks using Support Vector Regression

    This paper presents the Support Vector Regression (SVR) to predict the stability number of armor blocks of breakwaters. The experimental data of van der Meer are used as the training and test data for the SVR ...

    Dookie Kim, Dong Hyawn Kim, Seongkyu Chang in KSCE Journal of Civil Engineering (2011)

  11. No Access

    Article

    Development of a cable exciter to evaluate dam** ratios of a stay cable

    It is necessary to accurately estimate the dynamic characteristics of stay cables, especially dam** ratios, in order to design a cable damper for the appropriate vibration mitigation of a cable-stayed bridge...

    Jong-Jae Lee, Jae-Min Kim, Sang-Sup Ahn in KSCE Journal of Civil Engineering (2010)

  12. No Access

    Article

    Estimation and Map** of Nitrogen Uptake by Forest in South Korea

    Regional air pollution in northeast Asia is an emerging environmental problem requiring long-term impact assessment of acidic deposition. In this study, the gridded distribution of nitrogen uptake led by both ...

    Cheol-Hee Kim, Il-Soo Park, Sang-Kyun Kim, Hye-Young Son in Water, Air, and Soil Pollution (2008)

  13. No Access

    Article

    Abuilt-in active sensing system-based structural health monitoring technique using statistical pattern recognition

    A piezoelectric sensor-based health monitoring technique using a two-step support vector machine (SVM) classifier is developed for railroad track damage identification. Abuilt-in active sensing system composed of...

    Seunghee Park, Jong-Jae Lee, Chung-Bang Yun in Journal of Mechanical Science and Technolo… (2007)

  14. No Access

    Article

    Damage localization for bridges using probabilistic neural networks

    In this paper, the damage location of a bridge is identified using probabilistic neural networks. At first, modal parameters are identified from the ambient vibration data, and are utilized as the feature vect...

    Jong-Jae Lee, Chung-Bang Yun in KSCE Journal of Civil Engineering (2007)

  15. No Access

    Article

    Recent R&D activities on structural health monitoring for civil infra-structures in Korea

    Developments and applications of structural health monitoring (SHM) systems have become active particularily for long-span bridges in Korea. They are composed of sensors, data acquisition system, data transmis...

    Chung-Bang Yun, Jong-Jae Lee, Sung-Kon Kim, Ji-Won Kim in KSCE Journal of Civil Engineering (2003)