Search Results - "Byun, Woo‐Jin"
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Gradient tantalum-doped hematite homojunction photoanode improves both photocurrents and turn-on voltage for solar water splitting
Published in Nature communications (15-09-2020)“…Hematite has a great potential as a photoanode for photoelectrochemical (PEC) water splitting by converting solar energy into hydrogen fuels, but the…”
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Performance Analysis of Satellite Communication System Under the Shadowed-Rician Fading: A Stochastic Geometry Approach
Published in IEEE transactions on communications (01-04-2022)“…In this paper, we consider downlink low Earth orbit (LEO) satellite communication systems where multiple LEO satellites are uniformly distributed over a sphere…”
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3
Distributed beamforming with one‐bit feedback and clustering for multi‐node wireless energy transfer
Published in ETRI journal (01-04-2021)“…To resolve energy depletion issues in massive Internet of Things sensor networks, we developed a set of distributed energy beamforming methods with one‐bit…”
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4
Advanced Power Control Scheme in Wireless Power Transmission for Human Protection From EM Field
Published in IEEE transactions on microwave theory and techniques (01-03-2015)“…The wireless power transmission (WPT) system must guarantee human protection from the electromagnetic (EM) field around the system in proportion to the…”
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5
16-QAM OFDM-Based K-Band LoS MIMO Communication System with Alignment Mismatch Compensation
Published in ETRI journal (01-08-2017)“…This paper presents a novel K‐band (18 GHz) 16‐quadrature amplitude modulation (16‐QAM) orthogonal frequency‐division multiplexing (OFDM)‐based 2 × 2…”
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6
Compact Six-Port Transceiver for Time-Division Duplex Systems
Published in IEEE microwave and wireless components letters (01-05-2007)“…A compact six-port transceiver for time-division duplex systems is proposed. The proposed transceiver only uses a single six-port junction for the Tx and Rx…”
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7
Distributed beamforming with one-bit feedback and clustering for multi-node wireless energy transfer
Published in ETRI journal (30-04-2021)“…To resolve energy depletion issues in massive Internet of Things sensor networks, we developed a set of distributed energy beamforming methods with one-bit…”
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8
Activating the surface and bulk of hematite photoanodes to improve solar water splitting
Published in Chemical science (Cambridge) (28-11-2019)“…A simple electrochemical activation treatment is proposed to improve effectively the photoelectrochemical performance of Nb,Sn co-doped hematite nanorods. The…”
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9
Immiscible bi-metal single-atoms driven synthesis of electrocatalysts having superb mass-activity and durability
Published in Applied catalysis. B, Environmental (05-08-2020)“…[Display omitted] •Immiscible bimetal single atoms synthesized for the first time, with enhanced atomistic active surface area and durability.•High performance…”
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10
A Temporal Millimeter Wave Propagation Model for Tunnels Using Ray Frustum Techniques and FFT
Published in International journal of antennas and propagation (01-01-2014)“…A temporal millimeter wave propagation model for tunnels is presented using ray frustum techniques and fast Fourier transform (FFT). To directly estimate or…”
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11
Generalized Friis Transmission Equation for Orbital Angular Momentum Radios
Published in IEEE transactions on antennas and propagation (01-04-2019)“…Generalization of a Friis transmission equation for orbital angular momentum (OAM) radios is rigorously formulated using the Lorentz reciprocity theorem and a…”
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12
Shooting and Bouncing Rays for Sparse Particles (SBR-SP) Applied for Multiple Magnetodielectric Circular Cylinders
Published in IEEE transactions on antennas and propagation (01-12-2023)“…A numerically efficient method, called shooting and bouncing rays for sparse particles (SBR-SP), is proposed to analyze large 2-D arrays composed of…”
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13
CO2 Enrichment Boosts Highly Selective Infrared‐Light‐Driven CO2 Conversion to CH4 by UiO‐66/Co9S8 Photocatalyst
Published in Advanced materials (Weinheim) (18-04-2024)“…Photocatalytic CO2 reduction to high‐value chemicals is an attractive approach to mitigate climate change, but it remains a great challenge to produce a…”
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14
Indications for Supramalleolar Osteotomy in Patients with Ankle Osteoarthritis and Varus Deformity
Published in Journal of bone and joint surgery. American volume (06-07-2011)“…This article was updated on October 5, 2011, because of a previous error. The legend for Figure 1-C, which had previously not included a credit line, now…”
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15
Spatial and Temporal Characterization of Indoor Millimeter Wave Propagation at 24 GHz
Published in International journal of antennas and propagation (2016)“…Indoor millimeter wave propagation at the frequency of 24 GHz is studied by experimental methods. Measurements are performed to obtain temporal and spatial…”
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16
High Gain Metal-Only Reflectarray Antenna Composed of Multiple Rectangular Grooves
Published in IEEE transactions on antennas and propagation (01-12-2011)“…Using an overlapping T-block method based on mode-matching technique and virtual current cancellation, the scattering formulations for a metal-only…”
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17
Bayesian Matching Pursuit-Based Distributed FMCW MIMO Radar Imaging
Published in IEEE systems journal (01-09-2021)“…In this article, to get a high-resolution radar image with distributed frequency modulated continuous waveform multiple-input-multiple-output (FMCW MIMO)…”
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18
Orbital Angular Momentum (OAM) Antennas via Mode Combining and Canceling in Near-field
Published in Scientific reports (09-10-2017)“…Orbital angular momentum (OAM) mode combining and canceling in the near-field was investigated using a Cassegrain dual-reflectarray antenna composed of…”
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19
Microwave Orbital Angular Momentum Mode Generation and Multiplexing Using a Waveguide Butler Matrix
Published in ETRI journal (2017)“…In this paper, we propose a convenient microwave orbital angular momentum (OAM) mode generation and multiplexing method operating in the 18 GHz frequency band,…”
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20
Porous Manganese Oxide Networks as High-Capacity and High-Rate Anodes for Lithium-Ion Batteries
Published in Energies (Basel) (01-03-2021)“…A mesoporous MnOx network (MMN) structure and MMN/C composites were prepared and evaluated as anodes for high-energy and high-rate lithium-ion batteries (LIB)…”
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