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Articles

Experimental and numerical study of the performance of upper-room ultraviolet germicidal irradiation with the effective Z-value of airborne bacteria

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Pages 1123-1134 | Received 14 Dec 2016, Accepted 16 May 2017, Published online: 06 Jun 2017

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Maria E. Martínez Retamar, Claudio Passalía, Rodolfo J. Brandi & Marisol D. Labas. (2019) Dose estimation methodology for the UV inactivation of bioaerosols in a Continuous-Flow reactor. Aerosol Science and Technology 53:1, pages 8-20.
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Haiyang Liu, Zhijian Liu, Junzhou He, Chenxing Hu, Rui Rong, Hao Han, Lingyun Wang & Desheng Wang. (2023) Reducing airborne transmission of SARS-CoV-2 by an upper-room ultraviolet germicidal irradiation system in a hospital isolation environment. Environmental Research 237, pages 116952.
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Kangqi Guo, Yue Pan, Hoi Fung Ronaldo Chan, Kin-Fai Ho & Chun Chen. (2023) Far-UVC disinfection of airborne and surface virus in indoor environments: Laboratory experiments and numerical simulations. Building and Environment 245, pages 110900.
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M.H. Wang, H.H. Zhang, C.K. Chan, P.K.H. Lee & A.C.K. Lai. (2023) Experimental study of the disinfection performance of a 222-nm Far-UVC upper-room system on airborne microorganisms in a full-scale chamber. Building and Environment 236, pages 110260.
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Sunday S. Nunayon, Kwok-Wai Mui & Ling-Tim Wong. (2023) Mapping the knowledge pattern of ultraviolet germicidal irradiation for cleaner indoor air through the lens of bibliometrics. Journal of Cleaner Production 391, pages 135974.
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Y.H. Lu, H. Wu, H.H. Zhang, W.S. Li & A.C.K. Lai. (2023) Synergistic disinfection of aerosolized bacteria and bacteriophage by far-UVC (222-nm) and negative air ions. Journal of Hazardous Materials 441, pages 129876.
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Seongjun Park, Richard Mistrick & Donghyun Rim. (2022) Performance of upper-room ultraviolet germicidal irradiation (UVGI) system in learning environments: Effects of ventilation rate, UV fluence rate, and UV radiating volume. Sustainable Cities and Society 85, pages 104048.
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Sunday S. Nunayon, Minghao Wang, Hui H. Zhang & Alvin C.K. Lai. (2022) Evaluating the efficacy of a rotating upper-room UVC-LED irradiation device in inactivating aerosolized Escherichia coli under different disinfection ranges, air mixing, and irradiation conditions. Journal of Hazardous Materials 440, pages 129791.
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Tongling Xia, Kangqi Guo, Yue Pan, Yuting An & Chun Chen. (2022) Temporal and spatial far-ultraviolet disinfection of exhaled bioaerosols in a mechanically ventilated space. Journal of Hazardous Materials 436, pages 129241.
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Yuhao Lu, Bin Yang, Huihui Zhang & Alvin Chi-keung Lai. (2021) Inactivation of foodborne pathogenic and spoilage bacteria by single and dual wavelength UV-LEDs: Synergistic effect and pulsed operation. Food Control 125, pages 107999.
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Tsung-Chi Hsu, Yu-Tsai Teng, Yen-Wei Yeh, Xiaotong Fan, Kuo-Hsiung Chu, Su-Hui Lin, Kuo-Kuang Yeh, Po-Tsung Lee, Yue Lin, Zhong Chen, Tingzhu Wu & Hao-Chung Kuo. (2021) Perspectives on UVC LED: Its Progress and Application. Photonics 8:6, pages 196.
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Clive B. Beggs & Eldad J. Avital. (2020) Upper-room ultraviolet air disinfection might help to reduce COVID-19 transmission in buildings: a feasibility study. PeerJ 8, pages e10196.
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Sunday S. Nunayon, Hui H. Zhang & Alvin C.K. Lai. (2020) A novel upper-room UVC-LED irradiation system for disinfection of indoor bioaerosols under different operating and airflow conditions. Journal of Hazardous Materials 396, pages 122715.
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Huihui Zhang, Xin Jin, Sunday Segbenu Nunayon & Alvin C. K. Lai. (2020) Disinfection by in‐duct ultraviolet lamps under different environmental conditions in turbulent airflows. Indoor Air 30:3, pages 500-511.
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Sunday S. Nunayon, Huihui Zhang & Alvin C. K. Lai. (2019) Comparison of disinfection performance of UVC‐LED and conventional upper‐room UVGI systems. Indoor Air 30:1, pages 180-191.
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Yi Yang, Huihui Zhang, Vincent Chan & Alvin CK. Lai. (2019) Development and experimental validation of a mathematical model for the irradiance of in-duct ultraviolet germicidal lamps. Building and Environment 152, pages 160-171.
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Yi Yang, Huihui Zhang, Sunday Segbenu Nunayon, Vincent Chan & Alvin CK Lai. (2018) Disinfection efficacy of ultraviolet germicidal irradiation on airborne bacteria in ventilation ducts. Indoor Air 28:6, pages 806-817.
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A.C.K. Lai, S.S. Nunayon, T.F. Tan & W.S. Li. (2018) A pilot study on the disinfection efficacy of localized UV on the flushing-generated spread of pathogens. Journal of Hazardous Materials 358, pages 389-396.
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Pei Zhou, Yi Yang, Gongsheng Huang & Alvin C.K. Lai. (2018) Numerical and experimental study on airborne disinfection by negative ions in air duct flow. Building and Environment 127, pages 204-210.
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C.K. Cheng, L.B. Young, K.Y. Lin, Y.H. Lin, H.W. Wan, G.J. Lu, M.T. Chang, R.F. Cai, S.C. Lo, M.Y. Li, C.H. Hsu, J. Kwo & M. Hong. (2017) Single-crystal hexagonal perovskite YAlO3 epitaxially on GaAs(111)A and (001) using atomic layer deposition. Microelectronic Engineering 178, pages 125-127.
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