Search Results - "Park, Sungwook"

Experimental study on spray break-up and atomization processes from GDI injector using high injection pressure up to 30 MPa by Lee, Sanghoon, Park, Sungwook

“…This paper focuses on the influence of injection pressures up to 30 MPa on single liquid jet break-up and atomization processes. For this purpose, a single jet…”
Get full text

Effects of pre-mixed gas composition on combustion characteristics of micro pilot dual fuel (MPDF) in a heavy-duty dual fuel engine by Choi, Minhoo, Park, Sungwook

“…The effects of premixed gas compositions on the combustion characteristics in micro pilot duel fuel (MPDF) conditions were investigated. Propane, hydrogen, and…”
Get full text

In Situ Transmission Electron Microscopy Study of Electron Beam-Induced Transformations in Colloidal Cesium Lead Halide Perovskite Nanocrystals by Dang, Zhiya, Shamsi, Javad, Palazon, Francisco, Imran, Muhammad, Akkerman, Quinten A, Park, Sungwook, Bertoni, Giovanni, Prato, Mirko, Brescia, Rosaria, Manna, Liberato

“…An increasing number of studies have recently reported the rapid degradation of hybrid and all-inorganic lead halide perovskite nanocrystals under electron…”
Get full text

Spray atomization characteristics of a GDI injector equipped with a group-hole nozzle by Lee, Sanghoon, Park, Sungwook

“…•We analyzed the spray characteristics of a group-hole nozzle.•The SMD of the group-hole nozzle was smaller than that of the single-hole nozzle.•Stable spray…”
Get full text

Effect of driving characteristics and ambient temperature on the particle emissions during engine restart of spark ignition hybrid electric vehicle by Choi, Yonghyun, Hwang, Joonsik, Park, Sungwook

“…In this study, we analyzed particle emission characteristics in the engine restart (ER) phase of a hybrid electric vehicle (HEV) based on driving…”
Get full text

Noninvasive Precision Screening of Prostate Cancer by Urinary Multimarker Sensor and Artificial Intelligence Analysis by Kim, Hojun, Park, Sungwook, Jeong, In Gab, Song, Sang Hoon, Jeong, Youngdo, Kim, Choung-Soo, Lee, Kwan Hyi

“…Screening for prostate cancer relies on the serum prostate-specific antigen test, which provides a high rate of false positives (80%). This results in a large…”
Get full text

Effect of intake manifold geometry on cylinder-to-cylinder variation and tumble enhancement in gasoline direct injection engine by Shin, Jisoo, Kim, Donghwan, Son, Yousang, Park, Sungwook

“…In this study, the effect of intake manifold geometry on cylinder-to-cylinder variation was investigated considering the volumetric efficiency, early tumble…”
Get full text

Effect of fuel injection pressure and injection timing on spray characteristics and particulate size–number distribution in a biodiesel fuelled common rail direct injection diesel engine by Agarwal, Avinash Kumar, Dhar, Atul, Gupta, Jai Gopal, Kim, Woong Il, Lee, Chang Sik, Park, Sungwook

“…•Effect of injection pressure on spray characteristics of biodiesel blends and diesel.•Effect of injection pressure and SOI timing on particulate…”
Get full text

Effects of methane ratio on MPDF (micro-pilot dual-fuel) combustion characteristic in a heavy-duty single cylinder engine by Choi, Minhoo, Mohiuddin, Khawar, Park, Sungwook

“…In this study, the characteristics of micro-pilot dual-fuel combustion with respect to the fuel mixture ratio in a single cylinder dual-fuel engine have been…”
Get full text

Spray characteristics of fouled gasoline direct injectors under flash boiling and sub-zero temperature conditions by Kim, Donghwan, Park, Sungwook

“…This study investigated the spray characteristics of a fouled injector under different ambient pressures, fuel temperatures, and flashing ratios. Four fouled…”
Get full text

An Overview of Lead, Tin, and Mixed Tin–Lead‐Based ABI3 Perovskite Solar Cells by Seo, Jongdeuk, Song, Taehee, Rasool, Shafket, Park, Sungwook, Kim, Jin Young

“…Over a short period of approximately 10 years, metal‐halide‐perovskite‐based photovoltaics have demonstrated unprecedented improvements in solar cell…”
Get full text

Estimation of Total Transport CO2 Emissions Generated by Medium- and Heavy-Duty Vehicles (MHDVs) in a Sector of Korea by Seo, Jigu, Park, Junhong, Oh, Yunjung, Park, Sungwook

“…In order to mitigate carbon dioxide (CO2) emissions, policy action that addresses vehicle emissions is essential. While many previous studies have focused on…”
Get full text

Effects of swirl enhancement on in-cylinder flow and mixture characteristics in a high-compression-ratio, spray-guided, gasoline direct injection engine by Shin, Jisoo, Kim, Donghwan, Son, Yousang, Park, Sungwook

“…In this study, the flow enhancement effects of applying a swirl control valve were investigated with particle image velocimetry and simulation using CONVERGE…”
Get full text

Effects of Nozzle L/D on Near-Field Development and Macroscopic Spray Characteristics of Common-Rail Diesel Sprays by Park, Junkyu, Kim, Donghwan, Park, Sungwook

“…This study was performed to investigate the effects of L/D ratio of the nozzle on initial development and macroscopic spray behavior of diesel spray to…”
Get full text

Effects of the Bore to Stroke Ratio on Combustion, Gaseous and Particulate Emissions in a Small Port Fuel Injection Engine Fueled with Ethanol Blended Gasoline by Jang, Jihwan, Choi, Jonghui, Yi, Hoseung, Park, Sungwook

“…The purpose of this study is to analyze the combustion characteristics of the port fuel injection (PFI) engine considering the fuel mixing ratio, bore to…”
Get full text

Greenhouse Gas Emissions from Heavy-duty Natural Gas Vehicles in Korea by Seo, Jigu, Kwon, Seokjoo, Park, Sungwook

“…Since 1991, heavy-duty natural gas vehicles (NGVs) have been supplied as an alternative to heavy-duty diesel vehicles (HDVs) in Korea. This study calculated…”
Get full text

Effects of lubricant-fuel mixing on particle emissions in a single cylinder direct injection spark ignition engine by Yi, Hoseung, Seo, Jihwan, Yu, Young Soo, Lim, Yunsung, Lee, Sanguk, Lee, Jongtae, Song, Hanho, Park, Sungwook

“…Gasoline direct injection (GDI) engines emit less carbon dioxide (CO 2 ) than port fuel injection (PFI) engines when fossil fuel conditions are the same…”
Get full text

Extraction of Subgap Density of States in Amorphous InGaZnO Thin-Film Transistors by Using Multifrequency Capacitance-Voltage Characteristics by LEE, Sangwon, PARK, Sungwook, DONG MYONG KIM, DAE HWAN KIM, KIM, Sungchul, JEON, Yongwoo, JEON, Kichan, PARK, Jun-Hyun, PARK, Jaechul, SONG, Ihun, CHANG JUNG KIM, PARK, Youngsoo

“…An extraction technique for subgap density of states (DOS) in an n-channel amorphous InGaZnO thin-film transistor (TFT) by using multifrequency…”
Get full text

Effects of step hole geometry and spray-wall interactions on spray atomization in LPDI injector by Yu, Young Soo, Yang, Yubeen, Yang, Seungho, Shin, Dongheon, Yi, Hoseung, Kim, Namho, Park, Sungwook

“…•The experiments of the application of step hole were conducted using near-field, tip wetting and PDPA system.•The experiments of the spray-wall interaction…”
Get full text

Visualizations of combustion and fuel/air mixture formation processes in a single cylinder engine fueled with DME by Jeon, Joonho, Kwon, Sang Il, Park, Yong Hee, Oh, Yunjung, Park, Sungwook

“…•Experimental and numerical approaches were used for DME combustion.•DME fuel properties strongly affected temperature distribution.•The differences of…”
Get full text