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Artigo Acesso aberto Revisado por pares

Seung-Hyun Cho, Changyo Han, Hwan Seok Chung, Jong‐Hyun Lee,

... re.kr), Changyo Han (hanc@etri.re.kr), Hwan Seok Chung (chung@etri.re.kr), and Jong Hyun Lee (jlee@etri.re.kr) are with ...

Tópico(s): Optical Network Technologies

2015 - Electronics and Telecommunications Research Institute | ETRI Journal

Artigo Revisado por pares

Jin Hwan Chung, Jong Bae Jeon, Young Won Chang,

Tópico(s): Metallurgy and Material Forming

2010 - Springer Science+Business Media | Metals and Materials International

Artigo Revisado por pares

Young San You, Kyeong-Hwan Chung, Jong‐Ho Kim, Gon Seo,

Tópico(s): Catalytic Processes in Materials Science

2001 - Springer Science+Business Media | Korean Journal of Chemical Engineering

Artigo Revisado por pares

E. Pavitra, G. Seeta Rama Raju, L. Krishna Bharat, Jin Young Park, Cheol Hwan Kwak, Jong Won Chung, Young‐Kyu Han, Yun Suk Huh,

A WLED with high luminous efficacy is fabricated using rare-earth free CsVO 3 :0.25Rb as a single emitting compound for solid-state lighting applications.

Tópico(s): Ga2O3 and related materials

2018 - Royal Society of Chemistry | Journal of Materials Chemistry C

Artigo Acesso aberto

Jong Cheol Rim, Jung A Kim, Jeong In Hong, Sang Yoong Park, Jong Hwan Lee, Chan Jong Chung,

Background: Emergence agitation (EA) is one of the most common complications after general anesthesia. The goal of this retrospective study was to determine the risk factors of EA in adult patients who underwent general anesthesia. Methods: We retrospectively investigated the medical records of 5,358 adult patients who stayed in the postanesthesia care unit (PACU) of our hospital after general anesthesia during the 1-year period from January 2014 to December 2014. Psychological and behavioral status ...

Tópico(s): Cardiac, Anesthesia and Surgical Outcomes

2016 - | Anesthesia and Pain Medicine

Artigo

Yun-Jui Lee, Jenn‐Hwan Tarng, Shyh‐Jong Chung,

A novel filtering diplexing antenna for dual-band operation is presented. The antenna is composed of a slot-loaded patch and two resonators with a commonly used ground. Dog-bone-shaped slots are used on the ground for achieving broadside magnetic coupling and increasing the isolation between operating bands. The antenna design is based on a second-order Chebyshev bandpass filter synthesis. The proposed antenna exhibits high band-edge selectivity performance, low cross-polarization levels with half- ...

Tópico(s): Advanced Antenna and Metasurface Technologies

2016 - IEEE Antennas & Propagation Society | IEEE Antennas and Wireless Propagation Letters

Artigo Acesso aberto Revisado por pares

Sang Ho Lee, Yoon Chan Lee, Ji Hyeon Lee, So Ron Choi, Seung-Cheol Lee, JongHwan Lee, Chan Jong Chung,

Background Sore throat and hoarseness are common complications after general anesthesia with tracheal intubation. The position for patients can affect the incidence of postoperative sore throat (POST) by causing displacement of the endotracheal tube. This study investigated the prophylactic effect of dexamethasone in prone position surgeries. Methods One hundred-fifty patients undergoing lumbar spine surgery (18-75 yr) were randomly allocated into the normal saline group (group P, n = 50), dexamethasone ...

Tópico(s): Nausea and vomiting management

2016 - Korean Society of Anesthesiologists | Korean journal of anesthesiology

Artigo Acesso aberto Revisado por pares

Jeong Ho Kim, Yoon Chan Lee, Soo Il Lee, Sang Yoong Park, So Ron Choi, JongHwan Lee, Chan Jong Chung, Seung Cheol Lee,

There are few information about the differences of the effective dose (ED) of cisatracurium between the adult and the elderly. We investigated the ED and the onset time of cisatracurium in the adults and the elderly.We studied two hundred patients of the adults aged 20 through 64 years and the elderly aged ≥ 65 years, with American Society of Anesthesiologists physical status I or II. Each 100 patients with 20 patients of each dose group, randomly selected from 30, 40, 50, 60 or 70 µg/kg of cisatracurium, ...

Tópico(s): Epilepsy research and treatment

2016 - Korean Society of Anesthesiologists | Korean journal of anesthesiology

Artigo Acesso aberto Revisado por pares

Kyong-Hwan Bang, Jong‐Wook Chung, Young‐Chang Kim, Jei-Wan Lee, Ick-Hyun Jo, A-Yeon Seo, Ok-Tae Kim, Dong-Yun Hyun, Dong‐Hwi Kim, Seon-Woo Cha,

The principal objective of this study was to develop a discrimination method using SSR markers in Korean ginseng cultivars. Five cultivars-Chunpoong, Yunpoong, Gopoong, Sunpoong, and Kumpoong-were evaluated by nine markers out of 22 SSR markers. A total of 23 alleles were detected, ranging from 1 to 4, with an average of 2.6 alleles per locus, and an averages of gene diversity (GD) of 0.480. Nine markers were tested in order to distinguish among five Korean ginseng cultivars. Two markers out of nine ...

Tópico(s): Horticultural and Viticultural Research

2011 - Korean Society of Medicinal Crop Science | Korean Journal of Medicinal Crop Science

Artigo Revisado por pares

Dong-Su In, Young‐Chang Kim, Kyong-Hwan Bang, Jong‐Wook Chung, Ok-Tae Kim, Dong-Yoon Hyun, Seon-Woo Cha, Tae Soo Kim, Nak-Sul Seong,

This study was carried out to develop convenient and reproducible methods for identifying the genetic relationship among germplasms of Panax species based on molecular genetics. Using random amplified polymorphic DNA (RAPD) and inter simple sequence repeat (ISSR) analyses, genetic polymorphism of the Panax species was investigated with following cultivars and accessions, such as Chunpoong, Yunpoong, Kopoong, Sunpoong, and Kumpoong in domestic cultivars, Hwangsuk, Jakyung and Suckju in domestic accessions, ...

Tópico(s): Food Quality and Safety Studies

2005 - Korean Society of Medicinal Crop Science | Korean Journal of Medicinal Crop Science

Artigo Acesso aberto Revisado por pares

Dong Jun Kim, Mai‐Tram Vo, Seong Hee Choi, Ji-Heon Lee, So Yeon Jeong, Chung Hwan Hong, Jong Soo Kim, Unn Hwa Lee, Hyung‐Min Chung, Byung Ju Lee, Wha Ja Cho, Jeong Woo Park,

Hexokinase 2 (HK2) catalyzes the first step of glycolysis and is up-regulated in cancer cells. The mechanism has not been fully elucidated. Tristetraprolin (TTP) is an AU-rich element (ARE)-binding protein that inhibits the expression of ARE-containing genes by enhancing mRNA degradation. TTP expression is down-regulated in cancer cells. We demonstrated that TTP is critical for down-regulation of HK2 expression in cancer cells. HK2 mRNA contains an ARE within its 3'-UTR. TTP binds to HK2 3'-UTR and ...

Tópico(s): Mitochondrial Function and Pathology

2019 - American Society for Cell Biology | Molecular Biology of the Cell

Artigo Acesso aberto

Mai‐Tram Vo, Seong Hee Choi, Ji-Heon Lee, Chung Hwan Hong, Jong Soo Kim, Unn Hwa Lee, Hyung‐Min Chung, Byung Ju Lee, Jeong Woo Park, Wha Ja Cho,

... Seong Hee Choi 1 , Ji-Heon Lee 2 , Chung Hwan Hong 1 , Jong Soo Kim 2 , Unn Hwa Lee 1 , Hyung-Min Chung 2 , Byung Ju Lee 1 , Jeong Woo Park ...

Tópico(s): RNA Research and Splicing

2017 - Impact Journals LLC | Oncotarget

Artigo Revisado por pares

Jung Min Moon, Ki Suk Chung, Jong Hwan Eun, Jong Shik Chung,

Tópico(s): Green IT and Sustainability

2003 - Springer Science+Business Media | The International Journal of Life Cycle Assessment

Artigo Acesso aberto Revisado por pares

Minkyu Sung, Changyo Han, Seung-Hyun Cho, Hwan Seok Chung, Jong‐Hyun Lee,

We demonstrate the improvement of the transmission performance based on tone-reservation technique in a multiple intermediate-frequency-over-fiber (IFoF) based mobile fronthaul. The tone-reservation technique can suppress nonlinear distortion by eliminating the high peak components of orthogonal frequency-division multiplexing (OFDM) signal. To prevent the regrowth of peak, we employ tone-reservation after multiplexing IF carriers. Furthermore, we use an out-of-band signal as the reserved tones to ...

Tópico(s): Optical Network Technologies

2015 - Optica Publishing Group | Optics Express

Artigo Revisado por pares

О. В. Бушкова, O. L. Andreev, Н. Н. Баталов, С. Н. Шкерин, М. В. Кузнецов, А. P. Tyutyunnik, O. V. Koryakova, Eui-Hwan Song, Hyun‐Jong Chung,

The method of thermodynamic simulation was used to study chemical interactions in the cathode half-cell of lithium-ion battery, which contained LiCoO2 as cathode active material and a LiPF6 solution as the electrolyte. It was shown that in the temperature range 298–400 K in thermodynamic equilibrium state a layer of solid products of chemical reaction formed on the cathode/electrolyte interface. The layer predominantly consisted of LiF and LiPO3 in the molar ratio about 2:1 (corresponding to the ...

Tópico(s): Advanced Battery Materials and Technologies

2005 - Elsevier BV | Journal of Power Sources

Artigo

Hyoung‐Joon Park, Sun-Young Jung, Dong Woo Kwon, Seung-Hyun Cho, Hwan Seok Chung, Jong‐Hyun Lee, Sang‐Kook Han,

We propose and experimentally demonstrate a blind adaptive equalizer for a multiband (MB) orthogonal frequency-division multiplexing (OFDM) radio-over-fiber (RoF) system. The proposed equalizer adaptively decreases nonlinear and linear distortion, which might lead to serious signal degradation in MB OFDM transmission, without the use of a training signal. Instead of a training signal, error vector magnitude (EVM) and the power difference between the signal and the third-order intermodulation distortion ...

Tópico(s): Optical Network Technologies

2016 - Institute of Electrical and Electronics Engineers | IEEE Photonics Technology Letters

Artigo Acesso aberto Revisado por pares

Min Young Seo, Ki Ryung Kim, Jung Joo Lee, Gwanghui Ryu, Seung Hoon Lee, Sang Duk Hong, Hun‐Jong Dhong, ChungHwan Baek, Seung-Kyu Chung, Hyo Yeol Kim,

Abstract The aim of this study was to evaluate the effect of topical administration of onion ( Allium cepa) extract on nasal cavity for treatment of allergic rhinitis (AR). BALB/c mice were sensitized by intraperitoneal injection of ovalbumin (OVA) and challenged with intranasal instillation of OVA with or without onion extracts for five times a week on 3 consecutive weeks. Allergic symptom score according to frequencies of sneezing, serum total and OVA specific immunoglobulin E (IgE) level, cytokine ...

Tópico(s): Dermatology and Skin Diseases

2019 - Nature Portfolio | Scientific Reports

Artigo Acesso aberto Revisado por pares

Hyun Ho Han, Shim Jin-Hyung, Hyungseok Lee, Bo Young Kim, Jeong-Seok Lee, Jin Woo Jung, Won‐Soo Yun, Chung Hwan Baek, Jong‐Won Rhie, Dong‐Woo Cho,

Reconstruction of maxilla defects has remained one of the most challenging problems in craniomaxillofacial reconstruction because it typically requires harvesting and grafting of autologous bone, which poses limitations related to the difficulties in accurately reconstructing the defected bone and the highly prolonged duration of surgery. We employed tissue-engineered, patient-specific, 3-dimensional (3D)-printed biodegradable scaffolds for maxillofacial bone reconstruction in patients with complex ...

Tópico(s): Dental Implant Techniques and Outcomes

2018 - Wolters Kluwer | Plastic & Reconstructive Surgery Global Open

Artigo Revisado por pares

Young-Joo Lee, Ju-Hyoung Park, Gyu-Seob Song, Hueon Namkung, Se-Joon Park, Joeng-Geun Kim, Young-Chan Choi, ChungHwan Jeon, Jong Won Choi,

Biomass combustion technology is widely considered as an attractive option to remove carbon dioxide emissions and thus could become a viable option for next generation co-combustion power plants with coal. Among biomasses, the faster growing herbaceous biomass (Miscanthus) is relatively inexpensive as a solid fuel but has higher mineral contents (especially high levels of alkali metals) than that of a lignocellulosic biomass (Pitch pine) which leads to ultrafine particle emissions during combustion. ...

Tópico(s): Atmospheric chemistry and aerosols

2018 - Elsevier BV | Atmospheric Environment

Artigo Revisado por pares

Young-Jong Chung, Kyoo-Hwan Bae, Keung Koo Kim, Won‐Jae Lee,

A helically coiled once-through steam generator has been used widely during the past several decades for small nuclear power reactors. The heat transfer characteristics and dryout conditions are important to optimal design a helically coiled steam generator. Various experiments with the helically coiled tubes are performed to investigate the heat transfer characteristics and occurrence condition of a dryout. For the investigated experimental conditions, Steiner–Taborek's correlation is predicted ...

Tópico(s): Heat Transfer and Optimization

2014 - Elsevier BV | Annals of Nuclear Energy

Artigo Revisado por pares

Jong Hwan Suh, Chung Hoon Park, Si Hyun Jeon,

As the Internet has been the virtual place where citizens are united and their opinions are promptly shifted into the action, two way communications between the government sector and the citizen have been more important among activities of e-Government. Hence, Anti-corruption and Civil Rights Commission (ACRC) in the Republic of Korea has constructed the online petition portal system named e-People. In addition, the nation’s Open Innovation through e-People has gained increasing attention. That is ...

Tópico(s): Advanced Text Analysis Techniques

2010 - Elsevier BV | Expert Systems with Applications

Artigo Revisado por pares

ChungHwan Baek, Jong‐Chan Lee, Yong‐Gi Jung, Ye‐Jeung Ko, Jun Jin Yoon, Tae Gwan Park,

Abstract Objective The purpose of the study was to establish in vitro culture of chondrocytes on biodegradable, poly(D,L‐lactic‐co‐glycolic acid) [PLGA] scaffolds. Study Design Laboratory experiment using cartilage of rat rib and biodegradable scaffolds. Methods Chondrocytes were cultured on a poly‐hydroxyethyl methacrylate (poly‐HEMA)–coated dish, proliferated, and transferred into the PLGA scaffolds. Phenotypic expression of cells was examined according to the condition of poly‐HEMA coating. Morphological, ...

Tópico(s): Silk-based biomaterials and applications

2002 - Wiley | The Laryngoscope

Artigo Acesso aberto Revisado por pares

Woojong Jang, Hyun Oh Lee, Jang-Uk Kim, Jung-Woo Lee, Chi-Eun Hong, Kyong-Hwan Bang, Jong‐Wook Chung, Ick-Hyun Jo,

Panax ginseng C. A. Mey., a perennial herb belonging to the family Araliaceae, is a valuable medicinal plant with distinctive biological characteristics. However, comprehensive analyses of the mitochondrial genome (mitogenome) are lacking. In this study, we sequenced the complete mitogenome of ginseng based on long-read data from the Nanopore sequencing platform. The mitogenome was assembled into a “master circle” form of 464,705 bp and contained 72 unique genes. The genome had three large repeat ...

Tópico(s): Plant and Fungal Interactions Research

2020 - Multidisciplinary Digital Publishing Institute | Agronomy

Artigo Revisado por pares

Seok-Hwan Chung, Jong Tae Kim, Hoyoung Kim, Dong Hwan Kim, Sang Won Jeong,

A soft and stable substrate is an essential component for realizing flexible electronics and displays. We fabricated flexible substrate films by compositing iron oxide nanoparticle-conjugated graphite platelets (mGPs) with polyimide (PI). We controlled the microstructure of the composite film by aligning the mGPs with a low magnetic field in the vertical direction during the PI curing process. After magnetic alignment, the through-plane thermal conductivity of the mGP-PI composite film was enhanced ...

Tópico(s): Thermal Radiation and Cooling Technologies

2021 - Elsevier BV | Materials Today Communications

Artigo Revisado por pares

Heekyung Koh, Tae Young Park, Yong An Chung, JongHwan Lee, Hyungmin Kim,

Transcranial focused ultrasound (tFUS) is a promising non-invasive technique for treating neurological and psychiatric disorders. One of the challenges for tFUS is the disruption of wave propagation through the skull. Consequently, despite the risks associated with exposure to ionizing radiation, computed tomography (CT) is required to estimate the acoustic transmission through the skull. This study aims to generate synthetic CT (sCT) from T1-weighted magnetic resonance imaging (MRI) and investigate ...

Tópico(s): Ultrasound Imaging and Elastography

2021 - Institute of Electrical and Electronics Engineers | IEEE Journal of Biomedical and Health Informatics

Artigo Revisado por pares

Bong Shin Kwak, Seon‐Pil Jin, Su Jung Kim, E. J. Kim, Jin Ho Chung, Jong Hwan Sung,

Abstract There is a considerable need for cell‐based in vitro skin models for studying dermatological diseases and testing cosmetic products, but current in vitro skin models lack physiological relevance compared to human skin tissue. For example, many dermatological disorders involve complex immune responses, but current skin models are not capable of recapitulating the phenomena. Previously, we reported development of a microfluidic skin chip with a vessel structure and vascular endothelial cells. ...

Tópico(s): Angiogenesis and VEGF in Cancer

2020 - Wiley | Biotechnology and Bioengineering

Artigo Acesso aberto Revisado por pares

Jiyeon Park, Seung Yeon Yoo, Jae‐Hoon Ko, Sangmin Maria Lee, Yoon Joo Chung, JongHwan Lee, Kyong Ran Peck, Jeong Jin Min,

Abstract In 2015, we experienced the largest in-hospital Middle East respiratory syndrome (MERS) outbreak outside the Arabian Peninsula. We share the infection prevention measures for surgical procedures during the unexpected outbreak at our hospital. We reviewed all forms of related documents and collected information through interviews with healthcare workers of our hospital. After the onset of outbreak, a multidisciplinary team devised institutional MERS-control guidelines. Two standard operating ...

Tópico(s): COVID-19 and healthcare impacts

2020 - Nature Portfolio | Scientific Reports

Artigo Acesso aberto Revisado por pares

Yun-Ho Shin, Jung-Hoon Chung, Jong-Hwan Kim,

This paper presents the ballistic armor performance examination and thickness estimation for the latest naval ship structure materials in the Republic of Korea. Up to date, research regarding methods of ballistic experiments establishing database on the latest hull structure materials as well as a precise method of estimating required thickness of armor against specific projectiles have been rarely researched. In order to build a database and estimate proper thicknesses of structure materials, this ...

Tópico(s): Energetic Materials and Combustion

2018 - Elsevier BV | International Journal of Naval Architecture and Ocean Engineering

Artigo Revisado por pares

Kwiyong Kim, Hoon Cho, Seok Hwan Jeon, Seung Jong Lee, Chung‐Yul Yoo, Jong-Nam Kim, Jang Wook Choi, Hyung Chul Yoon, Jong‐In Han,

Electro-reduction of nitrogen aided by lithium offers a new route for ammonia synthesis. In this novel approach, the first step of lithium plating plays a determining role in faradaic efficiency (FE) of the electro-synthesis process. It was found that the simple addition of cesium salt in a conventional organic electrolyte enhanced Li plating performance (FE of 82.3% for ammonia synthesis) to a substantial extent. This improvement appeared to have a lot to do with a Cs-caused change in morphology ...

Tópico(s): Hydrogen Storage and Materials

2018 - Institute of Physics | Journal of The Electrochemical Society

Artigo Revisado por pares

Sojin Lee, Seon‐Pil Jin, Yeon Kyung Kim, Gun Yong Sung, Jin Ho Chung, Jong Hwan Sung,

Tópico(s): Advancements in Transdermal Drug Delivery

2017 - Springer Science+Business Media | Biomedical Microdevices