Full Text Journal Articles by
Author Jong Ho Lee

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Proposition of deposition and bias conditions for optimal signal-to-noise-ratio in resistor- and FET-type gas sensors.

Wonjun Shin, Gyuweon Jung, Seongbin Hong, Yujeong Jeong, Jinwoo Park, Donghee Kim, Dongkyu Jang, Dongseok Kwon, Jong-Ho Bae, Byung-Gook Park, Jong-Ho Lee,

In the field of gas sensor studies, most researchers are focusing on improving the response of the sensors to detect a low concentration of gas. However, factors that make a large response, such as abundant or strong adsorption sites, also work as a source of noise, resulting in a trade-off ... Read more >>

Nanoscale (Nanoscale)
[2020, 12(38):19768-19775]

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Hemophagocytic lymphohistiocytosis with recurrent Kikuchi-Fujimoto disease.

Sang Min Lee, Young Tae Lim, Kyung Mi Jang, Mi Jin Gu, Jong Ho Lee, Jae Min Lee,

Kikuchi-Fujimoto disease (KFD), also known as histiocytic necrotizing lymphadenitis, is a self-limiting lymphadenitis. It is a benign disease mainly characterized by high fever, lymph node swelling, and leukopenia. Hemophagocytic lymphohistiocytosis (HLH) is a life-threatening disease with clinical symptoms similar to those of KFD, but it requires a significantly more aggressive ... Read more >>

Yeungnam Univ J Med (Yeungnam University journal of medicine)
[2020, :]

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GSK-LSD1, an LSD1 inhibitor, quashes SARS-CoV-2-triggered cytokine release syndrome in-vitro.

Kyung Soo Hong, June Hong Ahn, Jong Geol Jang, Jong Ho Lee, Hong Nam Kim, Dongha Kim, Wonhwa Lee,

Signal Transduct Target Ther (Signal transduction and targeted therapy)
[2020, 5(1):267]

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A Simulation Study on Reducing the Grain Boundary Position Dependency in Tunneling Thin-Film Transistors Using a Wide Tunneling Area.

Hyun-Min Kim, Junil Lee, Yunho Choi, Jong-Ho Lee, Byung-Gook Park,

In this paper, we confirmed the effect of the grain boundary position dependency on short channel poly-Si Tunneling TFTs using technology computer aided design (TCAD) simulation. The simulation results show that the grain boundary (GB) in the channel affects the tunneling barrier and thus, produces variations in the electrical characteristics ... Read more >>

J Nanosci Nanotechnol (Journal of nanoscience and nanotechnology)
[2020, 20(11):6627-6631]

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Pruning for Hardware-Based Deep Spiking Neural Networks Using Gated Schottky Diode as Synaptic Devices.

Sung-Tae Lee, Suhwan Lim, Jong-Ho Bae, Dongseok Kwon, Hyeong-Su Kim, Byung-Gook Park, Jong-Ho Lee,

Deep learning represents state-of-the-art results in various machine learning tasks, but for applications that require real-time inference, the high computational cost of deep neural networks becomes a bottleneck for the efficiency. To overcome the high computational cost of deep neural networks, spiking neural networks (SNN) have been proposed. Herein, we ... Read more >>

J Nanosci Nanotechnol (Journal of nanoscience and nanotechnology)
[2020, 20(11):6603-6608]

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Full-Duplex Relay for Millimeter Wave Vehicular Platoon Communciations.

Jong-Ho Lee, Jiho Song,

The safety and consistency of platoon-based driving are guaranteed via reliable communication between vehicles in a platoon. In this paper, we propose to exploit a full-duplex (FD) relay vehicle for millimeter-wave vehicular communications in platoon-based driving. Considering that a lead vehicle broadcasts information to all vehicles in a platoon, we ... Read more >>

Sensors (Basel) (Sensors (Basel, Switzerland))
[2020, 20(21):]

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The Progression of SARS Coronavirus 2 (SARS-CoV2): Mutation in the Receptor Binding Domain of Spike Gene.

Sinae Kim, Jong Ho Lee, Siyoung Lee, Saerok Shim, Tam T Nguyen, Jihyeong Hwang, Heijun Kim, Yeo-Ok Choi, Jaewoo Hong, Suyoung Bae, Hyunjhung Jhun, Hokee Yum, Youngmin Lee, Edward D Chan, Liping Yu, Tania Azam, Yong-Dae Kim, Su Cheong Yeom, Kwang Ha Yoo, Lin-Woo Kang, Kyeong-Cheol Shin, Soohyun Kim,

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) is a positive-sense single-stranded RNA (+ssRNA) that causes coronavirus disease 2019 (COVID-19). The viral genome encodes twelve genes for viral replication and infection. The third open reading frame is the spike (S) gene that encodes for the spike glycoprotein interacting with specific cell ... Read more >>

Immune Netw (Immune network)
[2020, 20(5):e41]

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β-Catenin induces transcriptional expression of PD-L1 to promote glioblastoma immune evasion.

Linyong Du, Jong-Ho Lee, Hongfei Jiang, Chengde Wang, Silu Wang, Zhihong Zheng, Fei Shao, Daqian Xu, Yan Xia, Jing Li, Yanhua Zheng, Xu Qian, Xinjian Li, Hyung-Ryong Kim, Dongming Xing, Pengyuan Liu, Zhimin Lu, Jianxin Lyu,

PD-L1 up-regulation in cancer contributes to immune evasion by tumor cells. Here, we show that Wnt ligand and activated EGFR induce the binding of the β-catenin/TCF/LEF complex to the CD274 gene promoter region to induce PD-L1 expression, in which AKT activation plays an important role. β-Catenin depletion, AKT inhibition, or ... Read more >>

J Exp Med (The Journal of experimental medicine)
[2020, 217(11):]

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Evaluation of HPV-related oral cancer using DNA microarray technology according to the 8th edition of the AJCC staging system.

Ik Jae Kwon, Jong Ho Lee, Soung Min Kim,

Eur Arch Otorhinolaryngol (European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery)
[2020, :]

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Effects of Chewing Exerciser on the Recovery of Masticatory Function Recovery after Orthognathic Surgery: A Single-Center Randomized Clinical Trial, a Preliminary Study.

Hoon Joo Yang, Ik Jae Kwon, Akram Abdo Almansoori, Yoojung Son, Bongju Kim, Soung-Min Kim, Jong-Ho Lee,

Background and Objectives: The aim of this study was to evaluate the effects of the chewing exerciser (CE) on the functional recovery of the masticatory muscles after orthognathic surgery. Material and Methods: This randomized clinical trial was conducted in patients undergoing bimaxillary orthognathic surgery including bilateral sagittal split ramus osteotomy. ... Read more >>

Medicina (Kaunas) (Medicina (Kaunas, Lithuania))
[2020, 56(9):]

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Neuromorphic Computing Using NAND Flash Memory Architecture With Pulse Width Modulation Scheme.

Sung-Tae Lee, Jong-Ho Lee,

A novel operation scheme is proposed for high-density and highly robust neuromorphic computing based on NAND flash memory architecture. Analog input is represented with time-encoded input pulse by pulse width modulation (PWM) circuit, and 4-bit synaptic weight is represented with adjustable conductance of NAND cells. Pulse width modulation scheme for ... Read more >>

Front Neurosci (Frontiers in neuroscience)
[2020, 14:571292]

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Treatment modalities for Korean patients with unilateral hemifacial microsomia according to Pruzansky-Kaban types and growth stages.

Il-Hyung Yang, Jee Hyeok Chung, Sunjin Yim, Il-Sik Cho, Sukwha Kim, Jin-Young Choi, Jong-Ho Lee, Myung-Jin Kim, Seung-Hak Baek,

Objective:To investigate the treatment modalities (Tx-Mods) for patients with unilateral hemifacial microsomia (UHFM) according to Pruzansky-Kaban types and growth stages. Methods:The samples consisted of 82 Korean UHFM patients. Tx-Mods were defined as follows: Tx-Mod-1, growth observation due to mild facial asymmetry; Tx-Mod-2, unilateral functional appliance; Tx- Mod-3, fixed orthodontic treatment; ... Read more >>

Korean J Orthod (Korean journal of orthodontics)
[2020, 50(5):336-345]

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3D AND-Type Stacked Array for Neuromorphic Systems.

Taejin Jang, Suhyeon Kim, Jeesoo Chang, Kyung Kyu Min, Sungmin Hwang, Kyungchul Park, Jong-Ho Lee, Byung-Gook Park,

NOR/AND flash memory was studied in neuromorphic systems to perform vector-by-matrix multiplication (VMM) by summing the current. Because the size of NOR/AND cells exceeds those of other memristor synaptic devices, we proposed a 3D AND-type stacked array to reduce the cell size. Through a tilted implantation method, the conformal sources ... Read more >>

Micromachines (Basel) (Micromachines)
[2020, 11(9):]

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Renal effects of uric acid: hyperuricemia and hypouricemia.

Jung Hwan Park, Yong-Il Jo, Jong-Ho Lee,

The prevalence of chronic kidney disease (CKD) is increasing worldwide. Although hyperuricemia has been associated with CKD in many studies, it remains controversial whether this is the cause or the result of decreased renal function. Recent observational studies of healthy populations and patients with CKD have reported that uric acid ... Read more >>

Korean J Intern Med (The Korean journal of internal medicine)
[2020, 35(6):1291-1304]

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The effects of nattokinase supplementation on collagen-epinephrine closure time, prothrombin time and activated partial thromboplastin time in nondiabetic and hypercholesterolemic subjects.

Hye Jin Yoo, Minkyung Kim, Minjoo Kim, Ayoung Lee, Chunmei Jin, Sung Pyo Lee, Tae Su Kim, Sang-Hyun Lee, Jong Ho Lee,

The aim of this study was to investigate whether supplementation with nattokinase, which is considered one of the most active functional ingredients found in natto, alters hemostatic factors. Subjects presenting with hypercholesterolemia (serum cholesterol: 200-280 mg dL-1) were randomly divided into nattokinase and placebo groups (n = 50, respectively). No ... Read more >>

Food Funct (Food & function)
[2019, 10(5):2888-2893]

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Leiomyosarcoma of the jaw: case series.

Yong-Suk Choi, Akram Abdo Almansoori, Tae-Young Jung, Jae-Il Lee, Soung Min Kim, Jong-Ho Lee,

Objectives:Leiomyosarcoma is a malignant neoplasm that affects smooth muscle tissue and it is very rare in the field of oral and maxillofcial surgery. The purpose of this study was to obtain information on diagnosis of and treatment methods for leiomyosarcoma by retrospectively reviewing of the cases. Patients and Methods:The study ... Read more >>

(Journal of the Korean Association of Oral and Maxillofacial Surgeons)
[2020, 46(4):275-281]

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Optimal Position of Attachment for Removable Thermoplastic Aligner on the Lower Canine Using Finite Element Analysis.

Won-Hyeon Kim, Kyougnjae Hong, Dohyung Lim, Jong-Ho Lee, Yu Jin Jung, Bongju Kim,

Malocclusion is considered as a developmental disorder rather than a disease, and it may be affected by the composition and proportions of masseter muscle fibers. Orthodontics is a specialty of dentistry that deals with diagnosis and care of various irregular bite and/or malocclusion. Recent developments of 3D scanner and 3D ... Read more >>

Materials (Basel) (Materials (Basel, Switzerland))
[2020, 13(15):]

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Adiponectin and 8-epi-PGF2α as intermediate influence factors in weight reduction after legumes consumption: a 12-week randomized controlled trial

Youngmin Han, Jong Ho Lee, Minjoo Kim,

Abstract Background and Aims: The current nutritional intervention study was designed to determine the effect of legume on body weight in obese subjects. Methods Randomized controlled study of 12 weeks with 383 participants (body mass index ≥ 25 kg/m 2 ) was enrolled for the study. The intervention program consisted ... Read more >>

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Early Hydroxychloroquine Administration for Rapid Severe Acute Respiratory Syndrome Coronavirus 2 Eradication.

Kyung Soo Hong, Jong Geol Jang, Jian Hur, Jong Ho Lee, Hong Nam Kim, Wonhwa Lee, June Hong Ahn,

There are no proven therapeutics for Coronavirus disease 2019 (COVID-19) pneumonia outbreak. We observed and analyzed the clinical efficacy of the most used hydroxychloroquine (HCQ) for 30 days. In this study, administration of HCQ <5 days from diagnosis (odds ratio: 0.111, 95% confidence interval: 0.034 - 0.367, P = 0.001) ... Read more >>

Infect Chemother (Infection & chemotherapy)
[2020, 52(3):396-402]

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On-Chip Training Spiking Neural Networks Using Approximated Backpropagation With Analog Synaptic Devices.

Dongseok Kwon, Suhwan Lim, Jong-Ho Bae, Sung-Tae Lee, Hyeongsu Kim, Young-Tak Seo, Seongbin Oh, Jangsaeng Kim, Kyuho Yeom, Byung-Gook Park, Jong-Ho Lee,

Hardware-based spiking neural networks (SNNs) inspired by a biological nervous system are regarded as an innovative computing system with very low power consumption and massively parallel operation. To train SNNs with supervision, we propose an efficient on-chip training scheme approximating backpropagation algorithm suitable for hardware implementation. We show that the ... Read more >>

Front Neurosci (Frontiers in neuroscience)
[2020, 14:423]

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Effect of Word-Line Bias on Linearity of Multi-Level Conductance Steps for Multi-Layer Neural Networks Based on NAND Flash Cells.

Sung-Tae Lee, Suhwan Lim, Nagyong Choi, Jong-Ho Bae, Dongseok Kwon, Hyeong-Su Kim, Byung-Gook Park, Jong-Ho Lee,

NAND flash memory which is mature technology has great advantage in high density and great storage capacity per chip because cells are connected in series between a bit-line and a source-line. Therefore, NAND flash cell can be used as a synaptic device which is very useful for a high-density synaptic ... Read more >>

J Nanosci Nanotechnol (Journal of nanoscience and nanotechnology)
[2020, 20(7):4138-4142]

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Implementation of Synaptic Device Using Various High-k Gate Dielectric Stacks.

Young-Tak Seo, Min-Kyu Park, Jong-Ho Bae, Byung-Gook Park, Jong-Ho Lee,

We investigate the characteristics of short-term and long-term synaptic plasticity in a Si-based fieldeffect transistor (FET)-type memory device. An Al₂O₃/HfO₂/Si₃N₄/SiO₂ gate dielectric stack is used to realize short-term and long-term plasticity (STP/LTP). Si₃N₄ and HfO₂ layers are designed to charge trap layer for synaptic device. The mechanism of STP and ... Read more >>

J Nanosci Nanotechnol (Journal of nanoscience and nanotechnology)
[2020, 20(7):4292-4297]

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Electrical and Thermal Performances of Omega-Shaped-Gate Nanowire Field Effect Transistors for Low Power Operation.

Young Suh Song, Sungmin Hwang, Kyung Kyu Min, Taejin Jang, Yunho Choi, Junsu Yu, Jong-Ho Lee, Byung-Gook Park,

In this paper, we proposed Omega-Shaped-Gate Nanowire Field Effect Transistor (ONWFET) with different gate coverage ratio (GCR). In order to investigate electrical and self-heating characteristics of the proposed devices, on-current, off-current, subthreshold swing (SS), and operating temperature were examined by using 3D TCAD simulator and compared with nanowire MOSFET (NW-MOSFET). ... Read more >>

J Nanosci Nanotechnol (Journal of nanoscience and nanotechnology)
[2020, 20(7):4092-4096]

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Salvage surgery with second free flap reconstruction for recurrent oral squamous cell carcinoma.

Tae-Young Jung, Ki-Woong Sung, Sang-Yoon Park, Soung-Min Kim, Jong-Ho Lee,

Purpose:The purpose of this study was to evaluate the results of the reconstruction using the second free flap following resection of recurrent oral squamous cell carcinoma(OSCC). Patients and methods:A total of 25 patients from 2005 to 2018 who had undergone salvage surgery and reconstruction using the second free flap for ... Read more >>

Heliyon (Heliyon)
[2020, 6(6):e04014]

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Risk Associated with the LEPR rs8179183 GG Genotype in a Female Korean Population with Obesity.

Kyunghye Jang, Gurum Shin, Hye Jin Yoo, Jong Ho Lee, Minjoo Kim,

The difference between metabolically healthy obesity (MHO) and metabolically unhealthy obesity (MUO) phenotypes might be partly attributable to genetic traits modulating body fat distribution and other obesity-related metabolic traits, specifically with regard to LEPR rs8179183 in Korean women with obesity. A total of 177 females with obesity participated in the ... Read more >>

Antioxidants (Basel) (Antioxidants (Basel, Switzerland))
[2020, 9(6):]

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