Search Results - "Cho, Hyunok"

A miniaturized electromagnetic vibration energy harvester using flux-guided magnet stacks for human-body-induced motion by Halim, Miah A., Cho, Hyunok, Salauddin, Md, Park, Jae Y.

“…•A human-motion driven miniaturized EM energy harvester using flux-guided magnet stacks.•Flux-guided magnet stack increases the power density more than three…”
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Miniaturized springless hybrid nanogenerator for powering portable and wearable electronic devices from human-body-induced vibration by Salauddin, Md, Toyabur, R.M., Maharjan, P., Rasel, M.S., Kim, J.W., Cho, Hyunok, Park, Jae Yeong

“…In this paper, a springless hybridized NG (nanogenerator) was newly designed to have a non-resonant behavior, in which the output power continuously increases…”
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Keystroke Dynamics based Hybrid Nanogenerators for Biometric Authentication and Identification using Artificial Intelligence by Maharjan, Pukar, Shrestha, Kumar, Bhatta, Trilochan, Cho, Hyunok, Park, Chani, Salauddin, Md, Rahman, M. Toyabur, Rana, SM Sohel, Lee, Sanghyun, Park, Jae Y.

“…Cyberattack is one of the severe threats in the digital world as it encompasses everything related to personal information, health, finances, intellectual…”
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A Frequency Up-Converted Hybrid Energy Harvester Using Transverse Impact-Driven Piezoelectric Bimorph for Human-Limb Motion by Halim, Miah Abdul, Kabir, M. Humayun, Cho, Hyunok, Park, Jae Yeong

“…Energy harvesting from human-body-induced motion is mostly challenging due to the low-frequency, high-amplitude nature of the motion, which makes the use of…”
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Micro-fabricated flexible PZT cantilever using d33 mode for energy harvesting by Cho, Hyunok, Park, Jongcheol, Park, Jae Yeong

“…This paper presents a micro-fabricated flexible and curled PZT [Pb(Zr 0.52 Ti 0.48 )O 3 ] cantilever using d 33 piezoelectric mode for vibration based energy…”
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Design and experiment of a human-limb driven, frequency up-converted electromagnetic energy harvester by Halim, Miah A., Cho, Hyunok, Park, Jae Y.

“…•A frequency up-converted miniaturized energy harvester, driven by hand-shaking.•Use of a freely movable ball conquers the inconvenience in resonance issue at…”
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Electrospun PVDF-TrFE/MXene Nanofiber Mat-Based Triboelectric Nanogenerator for Smart Home Appliances by Rana, S M Sohel, Rahman, M. Toyabur, Salauddin, M, Sharma, S, Maharjan, P, Bhatta, T, Cho, Hyunok, Park, Chani, Park, Jae Yeong

“…Understanding of the triboelectric charge accumulation from the view of microcapacitor formation plays a critical role in boosting the output performance of…”
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A multimodal hybrid energy harvester based on piezoelectric-electromagnetic mechanisms for low-frequency ambient vibrations by Toyabur, R.M., Salauddin, M, Cho, Hyunok, Park, Jae Y.

“…•A significant step towards hybrid energy harvesting from low-frequency vibrations.•Multiple-degree-of-freedom harvesting system with four resonant modes of…”
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High-performance triboelectric nanogenerator based on MXene functionalized polyvinylidene fluoride composite nanofibers by Bhatta, Trilochan, Maharjan, Pukar, Cho, Hyunok, Park, Chani, Yoon, Sang Hyuk, Sharma, Sudeep, Salauddin, M., Rahman, M. Toyabur, Rana, SM Sohel, Park, Jae Yeong

“…In this work, electrospun MXene (Ti3C2Tx) functionalized Polyvinylidene fluoride (PVDF) composite nanofiber is firstly proposed as a promising negative…”
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Fabric‐Assisted MXene/Silicone Nanocomposite‐Based Triboelectric Nanogenerators for Self‐Powered Sensors and Wearable Electronics by Salauddin, Md, Rana, S. M. Sohel, Rahman, Muhammad Toyabur, Sharifuzzaman, Md, Maharjan, Pukar, Bhatta, Trilochan, Cho, Hyunok, Lee, Sang Hyun, Park, Chani, Shrestha, Kumar, Sharma, Sudeep, Park, Jae Yeong

“…Surface modification of triboelectric negative layers is an essential factor for boosting the output performance of triboelectric nanogenerators (TENGs)…”
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A Novel MXene/Ecoflex Nanocomposite‐Coated Fabric as a Highly Negative and Stable Friction Layer for High‐Output Triboelectric Nanogenerators by Salauddin, Md, Rana, S M Sohel, Sharifuzzaman, Md, Rahman, Muhammad Toyabur, Park, Chani, Cho, Hyunok, Maharjan, Pukar, Bhatta, Trilochan, Park, Jae Yeong

“…The triboelectric material properties and mechanical stability of the contact layer are vital to achieving durable triboelectric nanogenerators (TENGs) with…”
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Electromagnetic energy harvester based on a finger trigger rotational gear module and an array of disc Halbach magnets by Kim, Jae Woo, Salauddin, Md, Cho, Hyunok, Rasel, M. Salauddin, Park, Jae Yeong

“…[Display omitted] •Finger-triggered EMEH using gear modules and Halbach magnets array.•Non-resonant output behavior of the EMEH.•Frequency up conversion…”
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Natural wind-driven ultra-compact and highly efficient hybridized nanogenerator for self-sustained wireless environmental monitoring system by Rahman, M. Toyabur, Salauddin, Md, Maharjan, P., Rasel, M.S., Cho, Hyunok, Park, Jae Yeong

“…Owing to the climate change and energy crisis, harvesting energy from our surroundings and the construction of self-powered wireless environmental monitoring…”
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An indoor power line based magnetic field energy harvester for self-powered wireless sensors in smart home applications by Maharjan, Pukar, Salauddin, Md, Cho, Hyunok, Park, Jae Yeong

“…[Display omitted] •An indoor power line based magnetic field energy harvester for is presented.•Easily clamping over power line without cutting or disturbing…”
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A Fully Functional Universal Self‐Chargeable Power Module for Portable/Wearable Electronics and Self‐Powered IoT Applications by Maharjan, Pukar, Bhatta, Trilochan, Cho, Hyunok, Hui, Xue, Park, Chani, Yoon, Sanghyuk, Salauddin, Md, Rahman, Muhammad Toyabur, Rana, SM Sohel, Park, Jae Y.

“…Realization of self‐charging, miniaturized, portable, high output, and sustainable energy harvesting devices with wide application areas and good storage under…”
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A highly miniaturized freestanding kinetic-impact-based non-resonant hybridized electromagnetic-triboelectric nanogenerator for human induced vibrations harvesting by Toyabur Rahman, M., Sohel Rana, SM, Salauddin, Md, Maharjan, Pukar, Bhatta, Trilochan, Kim, Hyunsik, Cho, Hyunok, Park, Jae Yeong

“…[Display omitted] •A miniaturized hybridized nanogenerator for harvesting human-induced vibrations.•Non-resonant system with nonlinearity for high outputs at…”
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A fully enclosed, 3D printed, hybridized nanogenerator with flexible flux concentrator for harvesting diverse human biomechanical energy by Maharjan, Pukar, Cho, Hyunok, Rasel, M. Salauddin, Salauddin, Md, Park, Jae Yeong

“…Human body motion is highly regarded as a promising source of energy for powering body-worn electronic devices and health monitoring sensors. Transforming the…”
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A human-machine interactive hybridized biomechanical nanogenerator as a self-sustainable power source for multifunctional smart electronics applications by Rana, S M Sohel, Rahman, M. Toyabur, Salauddin, M., Maharjan, P., Bhatta, T., Cho, Hyunok, Park, Jae Yeong

“…Biomechanical energy harvesting has been attracting increased attention for powering electronic devices and reducing battery dependency. Here, we report a…”
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Ultra-robust and broadband rotary hybridized nanogenerator for self-sustained smart-farming applications by Rahman, M. Toyabur, Rana, S M Sohel, Maharjan, Pukar, Salauddin, Md, Bhatta, Trilochan, Cho, Hyunok, Park, Chani, Park, Jae Yeong

“…The practical realization of nanogenerators for realistic applications of scavenging sustainable energy is still challenging due to their limited output…”
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Design and experimental analysis of a low-frequency resonant hybridized nanogenerator with a wide bandwidth and high output power density by Salauddin, Md, Toyabur, R.M., Maharjan, P., Rasel, M. Salauddin, Cho, Hyunok, Park, Jae Yeong

“…Scavenging mechanical energy from low-frequency vibrations is of great interest owing to the accessibility of these vibrations in the ambient environment. In…”
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