Search results for: Seung Jin Oh

Items from 1 to 20 out of 60 results

article

Highly Efficient and Reliable Organic Light–Emitting Diodes Enabled by a Multifunctional Hazy Substrate for Extreme Environments (Adv. Funct. Mater. 18/2024)

Yongmin Jeon, Tae‐Yun Lee, Minwoo Nam, Hyeongjun Lee, more

Advanced Functional Materials > 34 > 18 > n/a - n/a

Organic Light–Emitting Diodes In article number 2310268, Heonsu Jeon, Jeong Hyun Kwon, and co‐workers customize a multifunctional hazy polymer substrate for extreme environments using a simple ion‐beam treatment and functional barrier film to realize highly reliable next‐generation displays. By using the developed multifunctional substrate, highly efficient and reliable wearable organic light‐emitting...

article

Highly Efficient and Reliable Organic Light–Emitting Diodes Enabled by a Multifunctional Hazy Substrate for Extreme Environments

Yongmin Jeon, Tae‐Yun Lee, Minwoo Nam, Hyeongjun Lee, more

Advanced Functional Materials > 34 > 18 > n/a - n/a

As transparent, flexible, and wearable organic electronics degrade under normal outdoor environmental conditions (e.g., water vapor, oxygen, and UV light) and extreme environments, including washing or rain, a customized encapsulation technology is required to improve device reliability. Herein, a simple process is presented for fabricating multifunctional hazy substrates (MFHSs) with excellent gas...

article

North Korean women’s reproductive health experience

Jung Jin Han, Seung Jin Oh

Public Health Nursing > 38 > 5 > 751 - 759

Objectives(s) The purpose of this study was to explore the experiences of women's reproductive health in North Korea through statements from North Korean female refugees. Design and Sample A qualitative phenomenological study was conducted using Colaizzi's methods. Through purposive and snowball sampling, a total of eight North Korean women refugees were recruited. Measures Data were collected...

article

Impact of nurse staffing on intent to leave, job satisfaction, and occupational injuries in Korean hospitals: A cross‐sectional study

Sujin Shin, Seung Jin Oh, Jeonghyun Kim, Inyoung Lee, more

Nursing & Health Sciences > 22 > 3 > 658 - 666

The purpose of this study was to examine nurse staffing in comprehensive nursing care units in Korea and examine the corresponding nurse outcomes, including intent to leave, job satisfaction, and occupational injuries. A total of 356 nurses working in comprehensive nursing care units at eight small‐medium sized Korean hospitals participated in this cross‐sectional study. In the day, evening, and night...

article

Influence of Carbon Content on Austenite Stability and Strain-induced Transformation of Nanocrystalline FeNiC Alloy by Spark Plasma Sintering

Seung-Jin Oh, Byoung-Cheol Kim, Man-Chul Suh, In-Jin Shon, more

Archives of Metallurgy and Materials > 2019 > Vol. 64, iss. 3 > 863--867

The effects of carbon content on the austenite stability and strain-induced transformation of nanocrystalline Fe-11%Ni alloys were investigated using X-ray analysis and mechanical tests. The nanocrystalline FeNiC alloy samples were rapidly fabricated using spark plasma sintering because of the extremely short densification time, which not only helped attain the theoretical density value but also prevented...

article

Historical Injustice and its Implications on International Law in East Asia

Seung Jin Oh

Pacific Focus > 33 > 3 > 390 - 413

East Asia is still politically and diplomatically divided while increasingly becoming integrated economically. East Asian states, excluding Japan, share a common experience in that they were deprived of their sovereignty, in part or as a whole, by Western or Japanese colonial powers. The experience still defines current international relations among East Asian countries, raising the issue of justice...

article

Production of clean oil with low levels of chlorine and olefins in a continuous two-stage pyrolysis of a mixture of waste low-density polyethylene and polyvinyl chloride

Ki-Bum Park, Seung-Jin Oh, Guzelciftci Begum, Joo-Sik Kim

Energy > 2018 > 157 > C > 402-411

In this study, a continuous two-stage pyrolyzer consisting of an auger reactor and a fluidized bed reactor was applied to produce an oil with a low level of chlorine from a mixture of low density polyethylene and polyvinyl chloride waste. In the experiment, the auger reactor operated at 300–400 °C, thus releasing HCl prior to the main pyrolysis in the fluidized bed reactor. The auger reactor also...

article

From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li₂Mo₃TeO₁₂ to Polyoxometalates

Seung‐Jin Oh, Seong‐Ji Lim, Tae‐Soo You, Kang Min Ok

Chemistry – A European Journal > 24 > 26 > 6664 - 6664

Invited for the cover of this issue is the group of Kang Ming Ok at the Chung An University in Seoul. The image depicts stacked Jenga blocks with unstable structures and highly organized structures, depicting the metastable tellurites and the thermodynamically stable polyoxometalates, respectively. Read the full text of the article at 10.1002/chem.201704755.

article

From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li₂Mo₃TeO₁₂ to Polyoxometalates

Seung‐Jin Oh, Seong‐Ji Lim, Tae‐Soo You, Kang Min Ok

Chemistry – A European Journal > 24 > 26 > 6712 - 6716

A metastable tellurite, Li₂Mo₃TeO₁₂, revealing a corrugated layered structure in an extremely strained coordination environment was hydrothermally synthesized in high yield. Li₂Mo₃TeO₁₂ undergoes Li⁺‐exchange‐driven facile structural transformation reactions to polyoxometalates. The kinetic data for the transformation reactions at various conditions were successfully obtained by simple lab‐source...

article

Front Cover: From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li₂Mo₃TeO₁₂ to Polyoxometalates (Chem. Eur. J. 26/2018)

Seung‐Jin Oh, Seong‐Ji Lim, Tae‐Soo You, Kang Min Ok

Chemistry – A European Journal > 24 > 26 > 6660 - 6660

A metastable layered tellurite (Li₂Mo₃TeO₁₂) in an extremely strained environment has been synthesized. Li⁺‐exchange‐driven transformation reactions of Li₂Mo₃TeO₁₂ to polyoxometalates have been successfully monitored by simple lab‐source X‐ray diffraction. Through the obtained kinetic data, a plausible mechanism for the solid‐state transformation reactions has been suggested. This new finding could...

article

Microstructure and Mechanical Properties of Highly Alloyed FeCrMoVC Steel Fabricated by Spark Plasma Sintering

Seung-Jin Oh, Joong-Hwan Jun, Min-Ha Lee, In-Jin Shon, more

Metals and Materials International > 2018 > 24 > 3 > 597-603

In this study, we successfully fabricated highly alloyed FeCrMoVC specimens within 2 min by using the spark plasma sintering (SPS) method. The densities of the sintered specimens were almost identical to their theoretical values. Fine (Mo, V)-rich carbides with lamellar structure were precipitated along the grain boundaries of the as-sintered specimen, whereas relatively large carbides were formed...

article

Synthesis, second-harmonic generation (SHG), and photoluminescence (PL) properties of noncentrosymmetric bismuth selenite solid solutions, Bi2-xLnxSeO5 (Ln = La and Eu; x = 0–0.3)

Hai-Xin Qi, Hongil Jo, Seung-Jin Oh, Kang Min Ok

Solid State Sciences > 2018 > 76 > C > 105-110

A series of La³⁺ or Eu³⁺-doped noncentrosymmetric (NCS) bismuth selenite solid solutions, Bi_2-xLn_xSeO₅ (x = 0.1, 0.2, and 0.3), have been successfully synthesized via standard solid-state reactions under vacuum with Bi₂O₃, La₂O₃ (or Eu₂O₃), and SeO₂ as starting materials. Crystal structures and phase purities of the resultant materials were thoroughly characterized by powder X-ray diffraction using...

article

Clean pyrolysis oil from a continuous two-stage pyrolysis of scrap tires using in-situ and ex-situ desulfurization

Gyung-Goo Choi, Seung-Jin Oh, Joo-Sik Kim

Energy > 2017 > 141 > C > 2234-2241

Scrap tire pyrolysis was conducted to produce low sulfur oil (below 0.45 wt%), which is strongly demanded for reduction of SOx emissions. In the experiments, a continuous two-stage pyrolyzer consisting of an auger reactor and fluidized bed reactor and various additives (CaO, Fe, FeO, calcined olivine) and fluidizing media (product gas and N₂) were tested for the in-situ desulfurization. The auger...

article

Application of a coelostat daylighting system for energy savings and enhancement of indoor illumination: A case study under clear-sky conditions

Seung Jin Oh, Spencer Dutton, Stephen Selkowitz, Hyun Joo Han

Energy and Buildings > 2017 > 156 > C > 173-186

This paper examines the effectiveness of coelostat daylighting systems for enhancing the indoor visual environment of open-plan offices. A coelostat consists of a movable mirror capable of tracking the sun and a fixed second mirror, which, acting together, create a single beam of sunlight for daylighting. A series of computer simulations were carried out using TracePro and Radiance where the relevant...

article

New quaternary alkali metal cadmium selenites, A2Cd(SeO3)2 (A = K, Rb, and Cs) and Li2Cd3(SeO3)4

Minfeng Lü, Hongil Jo, Seung-Jin Oh, Kang Min Ok

Journal of Solid State Chemistry > 2017 > 256 > C > 213-218

A series of new alkali metal cadmium selenites, A₂Cd(SeO₃)₂ (A = K, Rb, and Cs) and Li₂Cd₃(SeO₃)₄ have been synthesized in phase pure forms through hydrothermal and solid-state reactions. Structural analyses using single crystal X-ray diffraction indicate that while A₂Cd(SeO₃)₂ and Li₂Cd₃(SeO₃)₄ reveal layered structures consisting of CdO₆ and SeO₃ polyhedra, their symmetry, bonding modes, and the...

article

Evaluation of a dehumidifier with adsorbent coated heat exchangers for tropical climate operations

Seung Jin Oh, Kim Choon Ng, Wongee Chun, Kian Jon Ernest Chua

Energy > 2017 > 137 > C > 441-448

This paper presents the evaluation of a solid desiccant dehumidifier equipped with adsorbent powder coated heat exchangers (PCHX). The main component of the solid desiccant dehumidifier includes two heat exchangers that are coated with silica gel RD type powders in order to increase water adsorption uptake by improving its heat and mass transfer. A series of experiment are conducted to evaluate two...

article

Synthesis, second-harmonic generations (SHG), and photoluminescence (PL) properties of Ca4Bi6-xLnxO13 (Ln=La and Eu) solid solutions

Hoyong Jung, Hongil Jo, Seung-Jin Oh, Kang Min Ok

Journal of Solid State Chemistry > 2017 > 252 > C > 28-32

Noncentrosymmetric (NCS) Ca₄Bi_6-xLn_xO₁₃ (Ln=La and Eu; x=0, 0.06, and 0.12) solid solutions have been synthesized through conventional solid state reactions by using CaCO₃, Bi₂O₃, and Ln₂O₃. Crystal structures of the reported materials have been determined by powder X-ray diffraction using Rietveld method. Ca₄Bi_6-xLn_xO₁₃ solid solutions crystallizing in the polar NCS space group, C2mm (No. 38), are...

article

Solar to hydrogen: Compact and cost effective CPV field for rooftop operation and hydrogen production

Muhammad Burhan, Seung Jin Oh, Kian Jon Ernest Chua, Kim Choon Ng

Applied Energy > 2017 > 194 > C > 255-266

Current commercial CPV systems are designed as large units which are targeted to be installed in open desert fields with high DNI availability. It appeared that the CPV is among some of those technologies which gained very little attention of people, with less customers and market. For conventional PV systems, the installations at the rooftop of commercial and residential buildings have a significant...

article

Production of acetic acid-rich bio-oils from the fast pyrolysis of biomass and synthesis of calcium magnesium acetate deicer

Seung-Jin Oh, Gyung-Goo Choi, Joo-Sik Kim

Journal of Analytical and Applied Pyrolysis > 2017 > 124 > C > 122-129

Fast pyrolysis of corncob, palm kernel shell, and radiata pine was conducted at ∼430°C to produce acetic acid-rich bio-oils. The bio-oil derived from corncob contained a high concentration of acetic acid (∼8wt.%). Atmospheric and vacuum distillation of the bio-oil from corncob was performed to obtain bio-oil fractions enriched with acetic acid. The resultant atmospheric and vacuum distilled fractions...

article

Combination Therapy of Rosuvastatin and Ezetimibe in Patients with High Cardiovascular Risk

Young-June Yang, Sang-Hak Lee, Byung Soo Kim, Yun-Kyeong Cho, more

Clinical Therapeutics > 2017 > 39 > 1 > 107-117

The aim of this study was to evaluate the efficacy and tolerability of rosuvastatin/ezetimibe combination therapy in Korean patients with high cardiovascular risk.This was a 12-week, randomized, double-blind, placebo-controlled, multicenter study. A total of 337 patients were screened. After a 4-week run-in period, 245 of these patients with high or moderately high risk as defined by the National...

Publication date

Last year (2)
Last 3 years (2)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

INFONA - science communication portal

Search results for: Seung Jin Oh

Highly Efficient and Reliable Organic Light–Emitting Diodes Enabled by a Multifunctional Hazy Substrate for Extreme Environments (Adv. Funct. Mater. 18/2024)

Highly Efficient and Reliable Organic Light–Emitting Diodes Enabled by a Multifunctional Hazy Substrate for Extreme Environments

North Korean women’s reproductive health experience

Impact of nurse staffing on intent to leave, job satisfaction, and occupational injuries in Korean hospitals: A cross‐sectional study

Influence of Carbon Content on Austenite Stability and Strain-induced Transformation of Nanocrystalline FeNiC Alloy by Spark Plasma Sintering

Historical Injustice and its Implications on International Law in East Asia

Production of clean oil with low levels of chlorine and olefins in a continuous two-stage pyrolysis of a mixture of waste low-density polyethylene and polyvinyl chloride

From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li₂Mo₃TeO₁₂ to Polyoxometalates

From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li₂Mo₃TeO₁₂ to Polyoxometalates

Front Cover: From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li₂Mo₃TeO₁₂ to Polyoxometalates (Chem. Eur. J. 26/2018)

Microstructure and Mechanical Properties of Highly Alloyed FeCrMoVC Steel Fabricated by Spark Plasma Sintering

Synthesis, second-harmonic generation (SHG), and photoluminescence (PL) properties of noncentrosymmetric bismuth selenite solid solutions, Bi2-xLnxSeO5 (Ln = La and Eu; x = 0–0.3)

Clean pyrolysis oil from a continuous two-stage pyrolysis of scrap tires using in-situ and ex-situ desulfurization

Application of a coelostat daylighting system for energy savings and enhancement of indoor illumination: A case study under clear-sky conditions

New quaternary alkali metal cadmium selenites, A2Cd(SeO3)2 (A = K, Rb, and Cs) and Li2Cd3(SeO3)4

Evaluation of a dehumidifier with adsorbent coated heat exchangers for tropical climate operations

Synthesis, second-harmonic generations (SHG), and photoluminescence (PL) properties of Ca4Bi6-xLnxO13 (Ln=La and Eu) solid solutions

Solar to hydrogen: Compact and cost effective CPV field for rooftop operation and hydrogen production

Production of acetic acid-rich bio-oils from the fast pyrolysis of biomass and synthesis of calcium magnesium acetate deicer

Combination Therapy of Rosuvastatin and Ezetimibe in Patients with High Cardiovascular Risk

Filter options

Publication date

Keywords

Data set

Journal

INFONA - science communication portal

Search results for: Seung Jin Oh

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options