Ph.D. in Mechanical Engineering, University of Minnesota, USA (2017.09 – 2023.01)
B.S. in Mechanical Engineering, Hanyang University, Korea (2011.03 – 2017.02)

Assistant Professor, SeoulTech, Korea (2024.01 – Present)
Applications Scientist, Onto Innovation, USA (2023.02 – 2023.12)

Particle Transport
Heat/Mass Transfer
Aerosol Science and Technology
Semiconductor Particle Control

MSDE319 - Fluid Mechanics
MSDE323 - Design of Machine Elements
MSDE324 - Intermediate Engineering Design & Product Management
MSDE432 - Non-traditional Manufacturing Laboratory
MSDE440 - MEMS/Nanotechnology

◾ J Choi, SW Lee, S Choi, DB Kwak (2025) "Multi-objective optimization of a cylindrical heat sink with straight and forked fins using artificial neural network (ANN).", International Communication in Heat and Mass Transfer, 165, 109082
◾ IH An, DB Kwak, J Lee, SH Park, SJ Yook (2025) “Optimal Operating Positions of Two Air Purifiers for Improving Indoor Air Quality in Hospital Wards.”, Journal of Hospital Infection, 159, 42-51.
◾ S Cho, DB Kwak, DYH Pui (2025) “Impact of High-altitude Conditions and Low Ambient Pressure on Saliva Evaporation Rate and Airborne Transmission of Viruses”, Building and Environment, 269, 112453.
◾ DB Kwak, S Lee, Z Pan, Y Liang, H Lee, DYH Pui (2023) “Semi-empirical equation for determining the pressure drop of nanofibers”, Separation and Purification Technology, 124585
◾ H Lee, WY Kim, DB Kwak, KH Ahn (2023) “Development of a two-column particle sizer (TC-PS) for simultaneous measurements of particle concentration and size distribution”, Aerosol Science and Technology, 57(9), 903-910.
◾ J Park, DB Kwak, M Baek, S Lee, WY Kim, KA Kim, JY Lee, KH Ahn, H Lee (2023) “Development of drone-based filter sampling system for carbonaceous aerosol analysis using thermal–optical transmittance method”, Aerosol Science and Technology, 57(9), 861-871.
◾ T Song, DB Kwak, SC Kim, Q Ou, C Pei, HY Chung, WWS Poon, L Ni, DYH Pui (2023) “Comparison of microfiltration performances of ePTFE and PCTE membranes in IPA and deionized water”, Journal of Water Process Engineering, 54, 103942.
◾ DB Kwak, SC Kim, GW Mulholland, MC Owen, C Kim, H Lee, DYH Pui (2023) “Development of a detection system for gas-phase aromatics and other molecules ionizable by soft X-rays demonstrated using methyl salicylate.”, Aerosol Science and Technology, 57(7), 619-632.
◾ H Lee, DB Kwak, C Choi, KH Ahn (2023) “Accurate measurements of particle emissions from a three-dimensional printer using a chamber test with a mixer-installed sampling system.”, Scientific reports, 13, 6495.
◾ S Lee, D Vinh, M Baek, DB Kwak, H Lee (2023) “Modeling pressure drop values across ultra-thin nanofiber filters with various ranges of filtration parameters under an aerodynamic slip effect.”, Scientific reports, 13, 5449.
◾ DB Kwak, HD Fischer, DYH Pui (2023) “Saliva Droplet Evaporation Experiment and Simple Correlation of Evaporation-falling Curve under Different Temperatures and RH.”, Aerosol and Air Quality Research, 23, 220409.
◾ DB Kwak, JS Wang, H Lee, DYH Pui (2023) “Numerical study of nanoparticle penetration characteristics in forked tubes using tracking particle identification.”, Powder Technology, 415, 118172.
◾ Y Ye, Q Ou, W Chen, Q Cao, DB Kwak, T Kuehn, DYH Pui (2022) “Detection of Airborne Nanoparticles through Enhanced Light Scattering Images.”, Sensors, 22(5), 2038.
◾ W Chen, DB Kwak, J Anderson, K Kanna, C Pei, Q Cao, Q Ou, S Kim, T Kuehn, and DYH Pui(2021) “Study on Droplet Dispersion Influenced by Ventilation and Source Configuration in Classroom Settings Using Low-cost Sensor Network.”, Aerosol and Air Quality Research, 21, 210232.
◾ DB Kwak, SC Kim, T Kuehn, DYH Pui (2021) “Quantitative analysis of droplet deposition produced by an electrostatic sprayer on a classroom table by using fluorescent tracer.” Building and Environment, 205, 108254.
◾ S Lee, D Kim, Y Cho, E Kim, P Liu, DB Kwak, S Keum, H Lim, T Kim (2021) “Application of an Electrical Low Pressure Impactor (ELPI) for Residual Particle Measurement in an Epitaxial Growth Reactor”, Applied Sciences, 11(16), 7680.
◾ SC Kim, DB Kwak, T Kuehn, DYH Pui (2021) “Characterization of handheld disinfectant sprayers for effective surface decontamination to mitigate SARS-CoV-2 transmission.” Infection Control & Hospital Epidemiology, 42(7), 901-903.
◾ DB Kwak, SC Kim, H Lee, DYH Pui (2021) “Numerical investigation of nanoparticle deposition location and pattern on a sharp-bent tube wall.” International Journal of Heat and Mass Transfer, 164, 120534.
◾ DB Kwak, SC Kim, H Lee, DYH Pui (2020) “Experimental study of nanoparticle transport and penetration efficiency on a sharp-bent tube (elbow connection).” International Journal of Heat and Mass Transfer, 155, 119816.
◾ SC Kim, S Kang, H Lee, DB Kwak, Q Ou, C Pei, DYH Pui (2020) “Nanofiber Filter Performance Improvement: Nanofiber Layer Uniformity and Branched.” Aerosol and Air Quality Research, 20, 80-88.
◾ H Lee, DB Kwak, SC Kim, DYH Pui (2019) “Characterization of colloidal nanoparticles in mixtures with polydisperse and multimodal size distributions using a particle tracking analysis and electrospray-scanning mobility particle sizer.” Powder Technology, 355, 18-25.
◾ H Lee, DB Kwak, SC Kim, Q Ou, DYH Pui (2019) “Influence of colloidal particles with bimodal size distributions on retention and pressure drop in ultrafiltration membranes.” Separation and Purification Technology, 222, 352-360.
◾ JH Noh, DB Kwak, SJ Yook (2018) “Effects of wall thickness and material property on inverse heat conduction analysis of a hollow cylindrical tube.” Inverse Problems in Science and Engineering, 26, 1305-1325.
◾ DB Kwak, JH Noh, SH Lee, SJ Yook (2018) “Natural convection flow around heated disk in cubical enclosure.” Journal of Mechanical Science and Technology, 32, 2377-2384.
◾ DB Kwak, HP Kwak, JH Noh, SJ Yook (2018) “Optimization of the radial heat sink with a concentric cylinder and triangular fins installed on a circular base.” Journal of Mechanical Science and Technology, 32, 505-512.
◾ JH Noh, DB Kwak, KB Kim, KU Cha, SJ Yook (2018). “Inverse heat conduction modeling to predict heat flux in a hollow cylindrical tube having irregular cross-sections.” Applied Thermal Engineering, 128, 1310-1321.
◾ DB Kwak, JH Noh, KS Lee, SJ Yook (2017). “Cooling performance of a radial heat sink with triangular fins on a circular base at various installation angles.” International Journal of Thermal Sciences, 120, 377-385.

◾ 온습도에 따른 공기여과필터 효율 분석, 산학협력단, 2025.05 - 2026.04 (과제번호:2024-0752)
◾ 인라인 액체 나노입자 모니터링 시스템 개발:에어로졸 발생기 및 검출기를 갖춘 CMP 슬러리 모니터링 시스템의 실험실-제조 간 전환, TSI, 2025.03 - 2026.02 (과제번호:2024-0474)
◾ SMPS를 이용한 CMP Slurry 분석 및 PoC, 삼성전자, 2025.01 - 2025.09 (과제번호:2024-0895)
◾ 1단계- 온도 및 습도 제어를 통한 환경변수에 따른 공기여과 효율 분석, Center for Filtration Research(CFR), 2024.10 - 2025.06 (과제번호:2024-1404)
◾ 1단계: 반도체 결함의 원인인 대입자(500nm 이상)를 측정하기 위한 CMP슬러리 입자평가 분석방법 개발, Center for Filtration Research(CFR), 2024.10 - 2025.06 (과제번호:2024-1386)
◾ SMPS를 이용한 CMP slurry 분석기법개발, 삼성전자, 2024.10 – 2025.06 (과제번호:2024-1339)
◾ PSL 표준 입자를 이용한 Aerosol Generator와 Classifier and Counter의 CMP Defect 유발요소 계측설비 적용에 대한 신뢰성 및 타당성 연구, 삼성전자, 2024.09 – 2025.02 (과제번호:2024-1196)
◾ 호흡기 착용으로 인한 여과 성능에 미치는 영향, 산학협력단, 2024.07 – 2024.12 (과제번호:2024-0902)
◾ 무결점 반도체 공정을 위한 CMP 슬러리 입자에 대한 필터 효율 평가방법 개발, 산학협력단, 2024.07 – 2026.06 (신임교수 Step-UP 연구기자재 지원사업)
◾ 저압 환경에서의 타액 증발 실험, 산학협력단, 2024.07 – 2025.06 (과제번호:2024-0766)
◾ 동적 온도구배 변화에 따른 포열 거동 모델링 및 온도 특성 해석, 고등기술연구원, 2024.05 – 2024.06 (과제번호:2024-0567)