Search Results - "Cho, Yong Sang"

Magnesium ions enhance infiltration of osteoblasts in scaffolds via increasing cell motility by Kim, Ki-Jung, Choi, Sunkyung, Sang Cho, Yong, Yang, Seok-Jo, Cho, Young-Sam, Kim, Kee K.

“…Magnesium (Mg) ions are the most abundant intracellular divalent cations and play a pivotal role in numerous cellular processes. Biodegradable Mg-containing…”
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Time-Domain Differential Feedback for Massive MISO-OFDM Systems in Correlated Channels by Jeon, Yo-Seb, Kim, Hyun-Myung, Cho, Yong-Sang, Im, Gi-Hong

“…Massive multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) is a promising technology for next-generation wireless…”
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A high‐isolation mimo antenna with dual‐feed structure for WiFi of mobile phones by Lee, Won‐Woo, Cho, Yong‐Sang

“…ABSTRACT In this letter, we develop a new Multiple‐Input Multiple‐Output (MIMO) antenna that has two independent signal feed‐points in a single antenna…”
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Performance Comparison of Ultrasonic Focusing Techniques for Phased Array Ultrasonic Inspection of Dissimilar Metal Welds by Hwang, Young-In, Park, Jinhyun, Kim, Hak-Joon, Song, Sung-Jin, Cho, Yong-Sang, Kang, Sung-Sik

“…Dissimilar metal welding that is the joining of two different metals which would not be welded together has been used in nuclear power plants so that the…”
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Decentralized Beamformer Design with Limited Multi-Cell Cooperation for Interference Channel of Cognitive Radio Networks by KIM, Young-Jin, SONG, Moon-Gun, CHO, Yong-Sang, IM, Gi-Hong

“…In spectrum-sharing-based cognitive radio networks, multiple secondary systems can access a licensed spectrum to better utilize scarce radio resources. When…”
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Uplink Transmit Power Control for Single-Carrier Grouped FDMA with Iterative Multiuser Detection by Cho, Yong-Sang, Kang, Yun-Seong, Min, Moonsik

“…We consider an uplink power allocation scheme for single-carrier frequency-division multiple access (FDMA) with iterative multiuser detection, called…”
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A new frequency-reconfigurable antenna using coupling patterns for mobile handsets by Lee, Won-Woo, Cho, Yong-Sang

“…ABSTRACT This letter focuses on the design of a new frequency‐reconfigurable antenna for a mobile handset application. The proposed antenna supports the most…”
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A frequency reconfigurable mimo antennas using RF tuning element for mobile handset by Lee, Won-Woo, Cho, Yong-Sang

“…ABSTRACT In this letter, we develop a frequency tunable multiple‐input multiple‐output antenna for handhelds to achieve both the wideband tunability at the…”
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Assessment of cell proliferation in salt-leaching using powder (SLUP) scaffolds with penetrated macro-pores by Cho, Yong Sang, Hong, Myoung Wha, Kim, Young Yul, Cho, Young-Sam

“…In this study, a salt‐leaching using powder (SLUP) scaffold with penetrated macropores was proposed to enhance cell proliferation. A SLUP scaffold is a…”
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Comparative Assessment of the Ability of Dual-Pore Structure and Hydroxyapatite to Enhance the Proliferation of Osteoblast-Like Cells in Well-Interconnected Scaffolds by Cho, Yong Sang, Lee, Joon Sup, Hong, Myoung Wha, Lee, Se-Hwan, Kim, Young Yul, Cho, Young-Sam

“…In this study, to compare the relative abilities of dual-pore structure and hydroxyapatite to enhance the proliferation of osteoblastlike cell in…”
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Evaluation of mechanical strength and bone regeneration ability of 3D printed kagome-structure scaffold using rabbit calvarial defect model by Lee, Se-Hwan, Lee, Kang-Gon, Hwang, Jong-Hyun, Cho, Yong Sang, Lee, Kang-Sik, Jeong, Hun-Jin, Park, Sang-Hyug, Park, Yongdoo, Cho, Young-Sam, Lee, Bu-Kyu

“…In clinical conditions, the reconstructions performed in the complex and three-dimensional bone defects in the craniomaxillofacial (CMF) area are often limited…”
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Improved Channel-Dependent User Selection for an SC-FDMA System by CHO, Yong-Sang, KIM, Dongsik, KIM, Tae-Kyoung, IM, Gi-Hong

“…In this letter, we consider user scheduling for single-carrier frequency division multiple access with iterative multiuser detection. To achieve high spectral…”
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Assessments of polycaprolactone/hydroxyapatite composite scaffold with enhanced biomimetic mineralization by exposure to hydroxyapatite via a 3D-printing system and alkaline erosion by Cho, Yong Sang, Choi, Sunkyung, Lee, Se-Hwan, Kim, Kee K., Cho, Young-Sam

“…[Display omitted] •We proposed a 3D-printed composite scaffold with the bioceramic’s exposure.•Cell activities of the scaffold were analyzed via MTS assay and…”
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Assessment of osteogenesis for 3D-printed polycaprolactone/hydroxyapatite composite scaffold with enhanced exposure of hydroxyapatite using rat calvarial defect model by Cho, Yong Sang, Quan, Meiling, Lee, Se-Hwan, Hong, Myoung Wha, Kim, Young Yul, Cho, Young-Sam

“…In the polycaprolactone/hydroxyapatite scaffold fabricated by the melting-extrusion-type 3D-printing system, hydroxyapatite (bioceramic) particles are usually…”
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Strategy to improve endogenous bone regeneration of 3D-printed PCL/nano-HA composite scaffold: Collagen designs with BMP-2 and FGF-2 by Cho, Yong Sang, Ghim, Min-Soo, Hong, Myoung Wha, Kim, Young Yul, Cho, Young-Sam

“…[Display omitted] •We proposed an 3D-printed scaffold with kagome structure and collagen designs.•Released concentration of BMP-2 and FGF-2 were not affected…”
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Small-cell lung cancer presenting as fatal pulmonary hemorrhage by Lim, Jun Hyeok, Ryu, Jeong-Seon, Cho, Sang Yong, Kim, Hyun-Jung, Jeon, Sang Hoon, Kim, Jung Soo, Nam, Hae-Seong, Cho, Jae Hwa, Kwak, Seung Min, Lee, Hong Lyeol

“…Small-cell lung cancer (SCLC) is a lung cancer histological subtype unusual in its favorable response to cytotoxic chemotherapy. Life-threatening…”
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Utilization of EPRI ChemWorks tools for PWR shutdown chemistry evolution modeling by Choi, Jinsoo, Kim, Cho-Rong, Cho, Yong-Sang, Kwon, Hyuk-chul, Song, Kyu-Min

“…Shutdown chemistry evolution is performed in nuclear power plants at each refueling outage (RFO) to establish safe conditions to open system and minimize…”
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The fabrication of well-interconnected polycaprolactone/hydroxyapatite composite scaffolds, enhancing the exposure of hydroxyapatite using the wire-network molding technique by Cho, Yong Sang, Hong, Myoung Wha, Jeong, Hoon-Jin, Lee, Seung-Jae, Kim, Young Yul, Cho, Young-Sam

“…In this study, the fabrication method was proposed for the well-interconnected polycaprolactone/hydroxyapatite composite scaffold with exposed hydroxyapatite…”
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Assessments for bone regeneration using the polycaprolactone SLUP (salt‐leaching using powder) scaffold by Cho, Yong Sang, Hong, Myoung Wha, Quan, Meiling, Kim, So‐Youn, Lee, Se‐Hwan, Lee, Seung‐Jae, Kim, Young Yul, Cho, Young‐Sam

“…Salt‐leaching using powder (SLUP) scaffolds are novel salt‐leaching scaffolds with well‐interconnected pores that do not require an organic solvent or high…”
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Service Quality of Online Grocery Shopping in Korean Local Regions by Chung, Ji-Bok, Choi, Byung-Cheon, Cho, Yong-Sang, Chung, Lak-Chae

“…Purpose - This paper aims to measure the overall satisfaction of online grocery shopping and identify the quality components of online grocery delivery…”
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