Search Results - "Eun-cheol Choi"

W-Band Low Phase Sensitivity Reflectarray Antennas With Wideband Characteristics Considering the Effect of Angle of Incidence by Choi, Eun-Cheol, Nam, Sangwook

“…In this study, a W-band reflectarray antenna is designed with the characteristics of low phase sensitivity and wideband. Low phase sensitivity is achieved by…”
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High-Efficiency Dielectric Reflectarray Antennas With Ultra-Wideband Characteristics by Choi, Eun-Cheol, Nam, Sangwook

“…In this study, a K-band offset dielectric reflectarray antenna, having high aperture efficiency and ultra-wideband characteristics, was designed. A column-type…”
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Modified S-Band Satellite Antenna With Isoflux Pattern and Circularly Polarized Wide Beamwidth by Eun-cheol Choi, Lee, Jae W., Taek-Kyung Lee

“…A modified isoflux pattern antenna suitable for S-band satellite communication is introduced and investigated with respect to its beam pattern and axial…”
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Analysis and Elimination of Unwanted Resonances for Wideband Reflectarray Antenna Design at Sub-Millimeter Waves by Choi, Eun-Cheol, Nam, Sangwook

“…In this study, unwanted additional resonances are analyzed and a method is developed to eliminate them for wideband offset dual reflectarray antenna at…”
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Circularly Polarized S-Band Satellite Antenna With Parasitic Elements and Its Arrays by Choi, Eun-cheol, Lee, Jae W., Lee, Taek-Kyung, Lee, Woo-Kyung

“…A structural modification of S-band turnstile antenna with cylindrical parasitic elements around a main radiator is introduced and investigated with respect to…”
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Postoperative radiotherapy for endometrial cancer by Choi, Eun Cheol, Kim, Jin Hee, Kim, Ok Bae, Byun, Sang Jun, Park, Seung Gyu, Kwon, Sang Hoon

“…Purpose: To investigate the prognostic factors and effectiveness of postoperative radiotherapy alone for endometrial carcinoma. Materials and Methods: Sixty…”
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Equivalent Model Analysis of Modified Satellite Antenna for Isoflux Pattern Generation by Eun-Cheol Choi, Jae Wook Lee, Taek-Kyung Lee, Woo-Kyung Lee

“…This paper presents a theoretical approach for a modified turnstile antenna suitable for satellite communication in order to investigate the current…”
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An axial ratio beamwidth enhancement of S-band satellite antenna with parasitic elements by Eun-Cheol Choi, Lee, Jae W., Taek-Kyung Lee

“…In this article, a structural modification of S-band turnstile antenna to enhance the axial ratio beamwidth by attaching parasitic elements is suggested and…”
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Postoperative radiotherapy for endometrial cancer by Choi, Eun Cheol, Kim, Jin Hee, Kim, Ok Bae, Byun, Sang Jun, Park, Seung Gyu, Kwon, Sang Hoon

“…Purpose: To investigate the prognostic factors and effectiveness of postoperative radiotherapy alone for endometrial carcinoma. Materials and Methods: Sixty…”
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FACT-GPT: Fact-Checking Augmentation via Claim Matching with LLMs by Choi, Eun Cheol, Ferrara, Emilio

“…Our society is facing rampant misinformation harming public health and trust. To address the societal challenge, we introduce FACT-GPT, a system leveraging…”
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Automated Claim Matching with Large Language Models: Empowering Fact-Checkers in the Fight Against Misinformation by Choi, Eun Cheol, Ferrara, Emilio

“…In today's digital era, the rapid spread of misinformation poses threats to public well-being and societal trust. As online misinformation proliferates, manual…”
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Inhibition of matrix metalloproteinases expression in human dental pulp cells by all-trans retinoic acid by Kim, Jin Man, Kang, Sang Wook, Shin, Su-Mi, Su Kim, Duck, Choi, Kyong-Kyu, Kim, Eun-Cheol, Kim, Sun-Young

“…All-trans retinoic acid（ATRA） inhibits matrix metalloproteinase（MMP）-2 and MMP-9 in synovial fibroblasts, skin fibroblasts,bronchoalveolar lavage cells and…”
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High-Efficiency Dielectric Reflectarray Antennas With Ultra-Wideband Characteristics by Choi, Eun-Cheol, Nam, Sangwook

“…In this study, a K-band offset dielectric reflectarray antenna, having high aperture efficiency and ultra-wideband characteristics, was designed. A column-type…”
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Polymerization kinetics for the preparation of poly( p-divinylbenzene) via a miniemulsion polymerization process by Choi, Eun Cheol, Jin, Seon Mi, Park, Ye Ji, Kim, Yangsoo

“…The polymerization kinetics for the preparation of poly( p-divinylbenzene ( p-DVB)) via a miniemulsion polymerization process was studied by the gravimetric…”
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