Daeik Jang
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View article: Design optimization of metastructures integrating machine learning with energy-based homogenization
Design optimization of metastructures integrating machine learning with energy-based homogenization Open
View article: Advanced Signal Analysis Model for Internal Defect Mapping in Bridge Decks Using Impact-Echo Field Testing
Advanced Signal Analysis Model for Internal Defect Mapping in Bridge Decks Using Impact-Echo Field Testing Open
This study presents an advanced signal analysis model for internal defect identification in bridge decks using impact echo field testing data designed to mitigate signal noise and the variability encountered during real-world inspections. …
View article: Design optimization of energy efficient self-heating systems using CNT-and CF-embedded sectional heating cement composites
Design optimization of energy efficient self-heating systems using CNT-and CF-embedded sectional heating cement composites Open
View article: Autonomous Concrete Crack Monitoring Using a Mobile Robot with a 2-DoF Manipulator and Stereo Vision Sensors
Autonomous Concrete Crack Monitoring Using a Mobile Robot with a 2-DoF Manipulator and Stereo Vision Sensors Open
Crack monitoring in concrete structures is essential to maintaining structural integrity. Therefore, this paper proposes a mobile ground robot equipped with a 2-DoF manipulator and stereo vision sensors for autonomous crack monitoring and …
View article: Microstructural changes in carbonation-cured slag-blended calcium sulfoaluminate cements under electrically accelerated leaching
Microstructural changes in carbonation-cured slag-blended calcium sulfoaluminate cements under electrically accelerated leaching Open
View article: Effects of artificial interior stone (AIS) sludge incorporation on strength enhancement of cement mortar after exposed to elevated temperatures
Effects of artificial interior stone (AIS) sludge incorporation on strength enhancement of cement mortar after exposed to elevated temperatures Open
There has been increasing interest in developing recycling strategies for artificial interior stone (AIS) sludge in light of climate change, carbon neutrality objectives, and environmental concerns. In this study, a recycling strategy that…
View article: Artificial Intelligence-Guided Inverse Design of Deployable Thermo-Metamaterial Implants
Artificial Intelligence-Guided Inverse Design of Deployable Thermo-Metamaterial Implants Open
Current limitations in implant design often lead to trade-offs between minimally invasive surgery and achieving the desired post-implantation functionality. Here, we present an artificial intelligence inverse design paradigm for creating d…
View article: Wireless Electronic-free Mechanical Metamaterial Implants
Wireless Electronic-free Mechanical Metamaterial Implants Open
Despite significant advancements in wireless smart implants over the last two decades, current implantable devices still operate passively and require additional electronic modules for wireless transmission of the stored biological data. T…
View article: Improving properties of Portland cement-blast furnace slag blended paste through sodium bicarbonate-induced carbonation
Improving properties of Portland cement-blast furnace slag blended paste through sodium bicarbonate-induced carbonation Open
The addition of NaHCO3 has the potential to enhance properties of concrete by facilitating internal carbonation. This study investigates the effects of the incorporation of NaHCO3 into ordinary Portland cement-blast furnace slag paste. The…
View article: Transformations in the reaction products and properties of carbonation-cured CSA cements exposed to a sulfate attack
Transformations in the reaction products and properties of carbonation-cured CSA cements exposed to a sulfate attack Open
Reaction products and properties of carbonation-cured calcium sulfoaluminate (CSA) cements exposed to a sulfate attack were explored in an attempt to elucidate their durability aspects and potential opportunities for practical applications…
View article: Influence of Conductive Filler Types on the Ratio of Reflection and Absorption Properties in Cement-Based EMI Shielding Composites
Influence of Conductive Filler Types on the Ratio of Reflection and Absorption Properties in Cement-Based EMI Shielding Composites Open
The growing importance of electromagnetic interference (EMI) shielding composites in civil engineering has garnered increasing attention. Conductive cement-based composites, incorporating various conductive fillers, such as carbon nanotube…
View article: Role of hollow glass microspheres (HGM) in improving piezoresistive response of CNT/cement composites exposed to water ingress condition
Role of hollow glass microspheres (HGM) in improving piezoresistive response of CNT/cement composites exposed to water ingress condition Open
Cement-based sensors have attracted considerable attention due to their potential for self-sensing applications, particularly in the realms of structural health monitoring and traffic management, as they eliminate the need for external sen…
View article: Effect of silica aerogel incorporation on electrical characteristics and strain-sensing capability of nano-porous CNT/PDMS sensors
Effect of silica aerogel incorporation on electrical characteristics and strain-sensing capability of nano-porous CNT/PDMS sensors Open
The present study focuses on investigating the effect of incorporating silica aerogel on the electrical characteristics and sensing capabilities of carbon nanotube (CNT)-embedded PDMS nanocomposites. Initially, the concept of developing na…
View article: Experimental investigations on self-heating capability of cement composites incorporating CNT and CF: Impact of sample size and electrode spacing
Experimental investigations on self-heating capability of cement composites incorporating CNT and CF: Impact of sample size and electrode spacing Open
The present study investigates the electrical properties and electrical heating capability of cementitious composites incorporated with carbon nanotube (CNT) and carbon fiber (CF) of various sizes and different electrode spacing. Paste and…
View article: Millifluidic Nanogenerator Lab‐on‐a‐Chip Device for Blood Electrical Conductivity Monitoring at Low Frequency
Millifluidic Nanogenerator Lab‐on‐a‐Chip Device for Blood Electrical Conductivity Monitoring at Low Frequency Open
The electrical conductivity of blood is a crucial physiological parameter with diverse applications in medical diagnostics. Here, a novel approach utilizing a portable millifluidic nanogenerator lab‐on‐a‐chip device for measuring blood con…
View article: Investigation on NTC/PTC effects of cement-based self-heating composites with varied conductive filler contents
Investigation on NTC/PTC effects of cement-based self-heating composites with varied conductive filler contents Open
The present study systematically investigated the influence of varied conductive filler contents on the negative/positive temperature coefficient (NTC/PTC) effects in cement-based self-heating composites. Different composite formulations c…
View article: Absorption-dominant electromagnetic interference (EMI) shielding cement with hollow glass microsphere (HGM) at elevated temperatures
Absorption-dominant electromagnetic interference (EMI) shielding cement with hollow glass microsphere (HGM) at elevated temperatures Open
The rapid evolution and expansion of digital infrastructures has underscored the significance of electromagnetic interference (EMI) shielding composites. However, there has been a notable dearth of efforts to explore EMI shielding performa…
View article: A Coupled Chemo-Transport-Mechanical Damage Model for the Mineral Transformation in Cementitious Materials Under a Sulfate-Rich Environment
A Coupled Chemo-Transport-Mechanical Damage Model for the Mineral Transformation in Cementitious Materials Under a Sulfate-Rich Environment Open
View article: Absorption-Dominant Electromagnetic Interference (Emi) Shielding Cement with Hollow Glass Microsphere (Hgm) at Elevated Temperatures
Absorption-Dominant Electromagnetic Interference (Emi) Shielding Cement with Hollow Glass Microsphere (Hgm) at Elevated Temperatures Open
View article: Electrical impedance-based evaluation of self-healing degree in cement composites with biological admixtures
Electrical impedance-based evaluation of self-healing degree in cement composites with biological admixtures Open
The present study aims to explore the potential of using electrical impedance measurements for evaluating the self-healing degree in cement composites incorporating biological admixtures. Four different carbon-based conductive fillers such…
View article: A Coupled Chemo-Transport-Mechanical Damage Model for the Mineral Transformation in Cementitious Materials Under a Sulfate-Rich Environment
A Coupled Chemo-Transport-Mechanical Damage Model for the Mineral Transformation in Cementitious Materials Under a Sulfate-Rich Environment Open
View article: Effects of Carbon Nanotube and Graphene Oxide Incorporation on the Improvements of Magneto-Induced Electrical Sensitivity of Magneto-Rheological Gel
Effects of Carbon Nanotube and Graphene Oxide Incorporation on the Improvements of Magneto-Induced Electrical Sensitivity of Magneto-Rheological Gel Open
Magneto-rheological gel (MRG) has been the subject of recent research due to its versatile applications. Especially, the magneto-induced electrical properties of MRGs under different levels of magnetic field enables them to be used as magn…
View article: A Comprehensive Study on EMI Shielding Performance of Carbon Nanomaterials-Embedded CFRP or GFRP Composites
A Comprehensive Study on EMI Shielding Performance of Carbon Nanomaterials-Embedded CFRP or GFRP Composites Open
The rapid advancement of electrical and telecommunication facilities has resulted in increasing requirements for the development of electromagnetic interference (EMI) shielding composites. Accordingly, an experimental study was conducted t…
View article: Electrical Stability and Piezoresistive Sensing Performance of High Strain-Range Ultra-Stretchable CNT-Embedded Sensors
Electrical Stability and Piezoresistive Sensing Performance of High Strain-Range Ultra-Stretchable CNT-Embedded Sensors Open
Highly flexible and stretchable sensors are becoming increasingly widespread due to their versatile applicability in human/robot monitoring sensors. Conductive polymeric composites have been regarded as potential candidates for such sensor…
View article: Improved electromagnetic interference shielding performances of carbon nanotube and carbonyl iron powder (CNT@CIP)-embedded polymeric composites
Improved electromagnetic interference shielding performances of carbon nanotube and carbonyl iron powder (CNT@CIP)-embedded polymeric composites Open
View article: Evaluation of (CNT@CIP)-Embedded Magneto-Resistive Sensor Based on Carbon Nanotube and Carbonyl Iron Powder Polymer Composites
Evaluation of (CNT@CIP)-Embedded Magneto-Resistive Sensor Based on Carbon Nanotube and Carbonyl Iron Powder Polymer Composites Open
The conductive polymeric composites incorporating carbon nanotube (CNT) and carbonyl iron powder (CIP) have attracted much attention for various sensor applications. In this paper, a comprehensive study of the magneto-sensing property of a…
View article: A Comparative Study on the Electrical and Piezoresistive Sensing Characteristics of GFRP and CFRP Composites with Hybridized Incorporation of Carbon Nanotubes, Graphenes, Carbon Nanofibers, and Graphite Nanoplatelets
A Comparative Study on the Electrical and Piezoresistive Sensing Characteristics of GFRP and CFRP Composites with Hybridized Incorporation of Carbon Nanotubes, Graphenes, Carbon Nanofibers, and Graphite Nanoplatelets Open
In this study, hybridized carbon nanomaterials (CNMs), such as carbon nanotubes (CNTs)–graphene, CNT–carbon nanofibers (CNFs), or CNT–graphite nanoplatelet (GNP) materials were embedded in glass-fiber-reinforced plastic (GFRP) or carbon-fi…
View article: Facile Synthesis of Sprayed CNTs Layer-Embedded Stretchable Sensors with Controllable Sensitivity
Facile Synthesis of Sprayed CNTs Layer-Embedded Stretchable Sensors with Controllable Sensitivity Open
Flexible electronic devices have gained significant interest due to their different potential applications. Herein, we report highly flexible, stretchable, and sensitive sensors made of sprayed CNT layer, sandwiched between two polymer lay…
View article: Analysis of Electrical Resistance and Impedance Change of Magnetorheological Gels with DC and AC Voltage for Magnetometer Application
Analysis of Electrical Resistance and Impedance Change of Magnetorheological Gels with DC and AC Voltage for Magnetometer Application Open
Magnetorheological gel (MRG) is a smart material that can change its stiffness property by external magnetic field and has been applied as a smart rubber in suppressing vibration. Recent studies show that the electrical resistance of MRG a…