Search Results - "Kim, Ji Sik"

Hysteresis Compensation of Piezoresistive Carbon Nanotube/Polydimethylsiloxane Composite-Based Force Sensors by Kim, Ji-Sik, Kim, Gi-Woo

“…This paper provides a preliminary study on the hysteresis compensation of a piezoresistive silicon-based polymer composite, poly(dimethylsiloxane) dispersed…”
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A Novel Frequency Selectivity Approach Based on Travelling Wave Propagation in Mechanoluminescence Basilar Membrane for Artificial Cochlea by Kim, Yooil, Kim, Ji-Sik, Kim, Gi-Woo

“…This study presents the initial assessment for a new approach to frequency selectivity aimed at mimicking the function of the basilar membrane within the human…”
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A Mechanoluminescent ZnS:Cu/PDMS and Biocompatible Piezoelectric Silk Fibroin/PDMS Hybrid Sensor for Self‐Powered Sensing and Artificial Intelligence Control by Kim, Min‐Soo, Timilsina, Suman, Jang, Seong‐Min, Kim, Ji‐Sik, Park, Sang‐Shik

“…Mechanoluminescence (ML) is luminescence induced due to mechanical stress, providing intuitive responses to strain‐related events. Piezoelectricity is the…”
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New non-contacting torque sensor based on the mechanoluminescence of ZnS:Cu microparticles by Kim, Ji Sik, Kim, Gi-Woo

“…•The use of mechanoluminescence (ML) enables us to measure the rotating shaft torque.•ML intensity decay issue has been resolved using a new microparticle…”
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Optical Evaluation of In Situ Crack Propagation by Using Mechanoluminescence of SrAl2O4:Eu2+, Dy3 by Timilsina, Suman, Lee, Kwang Ho, Kwon, Yong Nam, Kim, Ji Sik

“…New theoretical solutions involving conventional crack propagation from static to dynamic fracture in terms of mechanoluminescence (ML) and the experimental…”
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Digital Image Correlation Compatible Mechanoluminescent Skin for Structural Health Monitoring by Shin, Ho Geun, Timilsina, Suman, Sohn, Kee‐Sun, Kim, Ji Sik

“…Monitoring structural health using mechanoluminescent (ML) effects is widely considered as a potential full‐field and direct visualizing optical method with…”
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Mechanoluminescent determination of the mode I stress intensity factor in SrAl2O4:Eu2+,Dy3 by Timilsina, Suman, Lee, Kwang Ho, Jang, Il Young, Kim, Ji Sik

“…The use of mechanoluminescence (ML) has enabled a new technique for the determination of the mode I stress intensity factor (SIF) in SrAl2O4:Eu2+,Dy3+ (SAO)…”
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Determining the Fracture Process Zone Length and Mode I Stress Intensity Factor in Concrete Structures via Mechanoluminescent Technology by Kim, Seong-Kyum, Shin, Ho Geun, Timilsina, Suman, Kim, Ji Sik

“…The mechanoluminescent (ML) technology that is being developed as a new and substitutive technology for structural health monitoring systems (SHMS) comprises…”
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Application of Mechanoluminescence for the Dynamic Visualization of an Alumina Fracture by Kim, Ji-Sik

“…The propagation of cracks was quantitatively analyzed in $Al_2O_3$ ceramic using the mechanoluminescence (ML) of $SrAl_2O_4$:Eu,Dy. The bridging zones behind…”
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Frequency response analysis of mechanoluminescence in ZnS:Cu for non-contact torque sensors by Gi-Woo, Kim, Min-Young, Cho, Ji-Sik, Kim

“…•The ML enables to measure the dynamic torque in rotating shaft.•Experimental frequency response analysis of ML in ZnS:Cu is presented.•This study provides…”
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Fabrication of transparent homogeneous functionally graded materials and crack analysis by photoelasticity by Lee, Kwang Ho, Kim, Bum Su, Kim, Ji Sik

“…To analyze the stress of functionally graded materials (FGMs) through an experiment, transparent homogeneous FGMs (THFGMs) with similar theoretical and…”
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Mechanically driven luminescence in a ZnS:Cu-PDMS composite by Sohn, Kee-Sun, Timilsina, Suman, Singh, Satendra Pal, Choi, Taekjib, Kim, Ji Sik

“…The conventional mechanoluminescence (ML) mechanism of phosphors such as SrAl2O4:Eu and ZnS:Mn is known to utilize carrier trapping at shallow traps followed…”
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Dark‐Mode Human–Machine Communication Realized by Persistent Luminescence and Deep Learning by Timilsina, Suman, Shin, Ho Geun, Sohn, Kee-Sun, Kim, Ji Sik

“…Increasing ubiquitous collaborative intelligence between humans and machines requires human–machine communication (HMC) that is more human and less…”
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In situ health monitoring of multiscale structures and its instantaneous verification using mechanoluminescence and dual machine learning by Ahn, Seong Yeon, Timilsina, Suman, Shin, Ho Geun, Lee, Jeong Heon, Kim, Seong-Hoon, Sohn, Kee-Sun, Kwon, Yong Nam, Lee, Kwang Ho, Kim, Ji Sik

“…Extensive changes in the legal, commercial and technical requirements in engineering fields have necessitated automated real-time structural health monitoring…”
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Identification of Location and Geometry of Invisible Internal Defects in Structures using Deep Learning and Surface Deformation Field by Timilsina, Suman, Jang, Seong Min, Jo, Cheol Woo, Kwon, Yong Nam, Sohn, Kee-Sun, Lee, Kwang Ho, Kim, Ji Sik

“…On‐site inspection of invisible subsurface defects in multiscale structural materials by conventional nondestructive testing (NDT) methods, such as X‐ray and…”
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A smart load-sensing system using standardized mechano-luminescence measurement by Sohn, Kee-Sun, Cho, Min Young, Kim, Minseuk, Kim, Ji Sik

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Computational Evolutionary Optimization of Red Phosphor for Use in Tricolor White LEDs by Sohn, Kee-Sun, Park, Duk Hyun, Cho, Sang Ho, Kwak, Joon Seop, Kim, Ji Sik

“…An evolutionary optimization process involving a genetic algorithm and combinatorial chemistry was employed in an attempt to develop titanate-based red…”
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Application of Mechanoluminescence for the Dynamic Visualization of an Alumina Fracture by Kim, Ji Sik

“…The propagation of cracks was quantitatively analyzed in Al 2 O 3 ceramic using the mechanoluminescence (ML) of SrAl 2 O 4 :Eu,Dy. The bridging zones behind…”
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Dynamic visualization of crack propagation and bridging stress using the mechano-luminescence of SrAl2O4: (Eu, Dy, Nd) by JI SIK KIM, KWON, Yong-Nam, SOHN, Kee-Sun

“…The goal of the present investigation was to visualize the propagating crack in a mechano-luminescence (ML) material to enable the measurement of instantaneous…”
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Combinatorial screening of Eu3+ doped TiO2-Y2O3-Gd2O3 ternary system at soft UV excitation by DUK HYUN PARK, SANG HO CHO, JI SIK KIM, SOHN, Kee-Sun

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