Hyunmin Cho

Paradigm Shift in Management of Post-cardiopulmonary Resuscitation Flail Chest

Hyunmin Cho

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Prevalence of and risk factors associated with chronic opioid use after traumatic injury: A historical cohort study using the Korean National Health Insurance Service sample cohort data

Kun Hyung Kim, David Macleod, Hyunmin Cho, Seon Hee Kim

Chronic opioid use (COU) after traumatic injuries is a global health concern. COU after trauma delays recovery and increases the risk of long-term drug dependence. However, the population-prevalence and factors associated with COU after traumatic injury in South Korea remain unclear. We …

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97‐2: Late‐News Paper: Development of High‐Mobility Indium‐rich IGZO TFT Device for IT OLED Display

Hyunmin Cho, Chang-Il Ryoo, Pilsang Yun, Jong Uk Bae et autres

High‐end MNT, NBPC OLED displays require high resolution and high‐speed driving characteristics. In addition, as an OLED backplane, a high mobility and excellent reliability characteristics of TFT are required. We have developed high mobility devices by using Indium (In‐) rich a‐IGZO. In …

Novel nomogram for predicting paradoxical chest wall movement in patients with flail segment of traumatic rib fracture: a retrospective cohort study

Junepill Seok, Soon Tak Jeong, Soo Young Yoon, Jin Young Lee et autres

Flail chest is a severe injury to the chest wall and is related to adverse outcomes. A flail chest is classified as the physiologic, paradoxical motion of a chest wall or flail segment of rib fracture (RFX). We hypothesized that patients with …

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Novel nomogram for predicting pulmonary complications in patients with blunt chest trauma with rib fractures: a retrospective cohort study

Junepill Seok, Soo Young Yoon, Jin Young Lee, Se‐Heon Kim et autres

The direct consequences of chest trauma may cause adverse outcomes. Therefore, the early detection of high-risk patients and appropriate interventions can improve patient outcomes. This study aimed to investigate the risk factor for overall pulmonary complications in patients with blunt traumatic rib …

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37‐2: Distinguished Paper: Efficiency Enhancement of Submicron‐size Light‐Emitting Diodes by Triple Dielectric Layers

Hyunmin Cho, Daehyun Kim, Seunga Lee, Chuljong Yoo et autres

We demonstrate highly efficient submicron scale nanorod LEDs (nLEDs) passivated by the triple dielectric layers. The diameter, length, and wavelength at a peak EQE of nLEDs are 580nm, 5¼m, and 460nm, respectively. We report a peak EQE of 22.15 ± 0.34% with …

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Efficiency enhancement of submicron‐size light‐emitting diodes by triple dielectric layers

Hyunmin Cho, Daehyun Kim, Seunga Lee, Chuljong Yoo et autres

Abstract Micro‐LED (light‐emitting diode) is an emerging technology that produces superiorly bright, efficient, and high‐resolution display. However, efficiency drop at small chip sizes is one of the major hurdles for cost‐effectiveness and ultra‐compact form factor. We demonstrate highly efficient submicron‐scale nanorod LEDs …

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One-Step Etching Characteristics of ITO/Ag/ITO Multilayered Electrode in High-Density and High-Electron-Temperature Plasma

Ho-Won Yoon, SeungMin Shin, Seong-Yong Kwon, Hyunmin Cho et autres

This paper presents the dry etching characteristics of indium tin oxide (ITO)/Ag/ITO multilayered thin film, used as a pixel electrode in a high-resolution active-matrix organic light-emitting diode (AMOLED) device. Dry etching was performed using a combination of H2 and HCl gases in …

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Electric Field Assembled Anisotropic Dielectric Layer for Metal Core Printed Circuit Boards

Myong‐Jae Yoo, Hyunmin Cho, Seong-Hwan Kim, Ho-Sun Lim et autres

Thermal dissipation properties of metal core printed circuit boards (MCPCBs) with a dielectric layer having an anisotropically assembled microstructure are presented for dissipating heat of high-power transistors. The proposed MCPCB with an anisotropic microstructure was fabricated by applying an electric field simultaneously …

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RF SOP (System On Package) Using Passive Embedded Substrate

Nam‐Kee Kang, Junchul Kim, Dongsu Kim, Chan‐Sei Yoo et autres

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Implementation of a Highly Integrated Triple-Band RF Front-End Module

Dong-Su Kim, Jong-In Ryu, Hyunmin Cho, Nam‐Kee Kang et autres

This paper presents a highly integrated low temperature co-fired ceramic (LTCC) RF front-end module (FEM) for cellular/GPS/PCS applications. First, a triplexer composed of two diplexers and a GPS SAW filter has been implemented. Measured results of the triplexer are summarized and compared …

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Gender Differences in Patients with Colorectal ancer

Won Kyung Kang, Seung-Yong Shin, Hyunmin Cho, Jong-Kyung Park et autres

Purpose: Gender differences as prognostic factors in colorectal cancer surgery are still controversial. The prognostic factors for patients undergoing colorectal cancer surgery, include the clinicopathological staging and the possibility for curative surgery. The gender difference was suggested due to the difference in …