Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Duck Shin Park"'
Autor:
Joon Sig Jung, Mailan Arachchige Don Rajitha Kawshalya, In Keun Shim, Jung Min Ryu, Myung Hee Kwon, Duck Shin Park, Seung Cheol Hong
Publikováno v:
Emerging Contaminants, Vol 4, Iss 1, Pp 40-46 (2018)
This study attempted to identify the level of exposure of 350 subjects to the extremely low-frequency magnetic field (ELF-MF). The occupational group showed significantly high levels of ELF-MF in every exposure indicator during work and transportatio
Externí odkaz:
https://doaj.org/article/a5ce4dd44ffc4a5c8154bf547a4e5e02
Autor:
Duck Shin Park, Seung Cheol Hong, Jae Won Lee, Joon-Sig Jung, Rajitha Kawshalya Mailan Arachchige Don
Publikováno v:
International Journal of Occupational Safety and Ergonomics. 25:91-98
We investigated the characteristics of charged aerosols produced by high-voltage power lines (HVPLs) to explore the effects on respiratory disease incidence among those who handle HVPLs. Charged aerosol currents and charged aerosol concentrations wer
Autor:
Mailan Arachchige Don Rajitha Kawshalya, Seung Cheol Hong, Duck Shin Park, Myunghee Kwon, In Keun Shim, Jung Min Ryu, Joon Sig Jung
Publikováno v:
Emerging Contaminants, Vol 4, Iss 1, Pp 40-46 (2018)
This study attempted to identify the level of exposure of 350 subjects to the extremely low-frequency magnetic field (ELF-MF). The occupational group showed significantly high levels of ELF-MF in every exposure indicator during work and transportatio
Autor:
Jorge Loy-Benitez, Sung Ku Heo, ChangKyoo Yoo, KiJeon Nam, Qian Li, Duck Shin Park, Minjeong Kim
Publikováno v:
Applied Energy. 266:114893
Passengers are directly or indirectly exposed to fine dust in indoor air of underground subway stations, which greatly affects the comfort and health of the passengers. However, conventional ventilation systems are manually operated, resulting in hig
Publikováno v:
Journal of computational fluids engineering. 18:72-78
The turbulent flow behavior of air supply and exhaustion in the Shin-gum-ho subway station is analyzed for ordinary and emergency state. The depth of Shin-gum-ho station is 43.6m which consists of the island-type platform(8th floor in underground) an
Publikováno v:
Applied Mechanics and Materials. :342-346
LiOH is known to be one of the most efficient CO2adsorbent because it reacts with CO2to form Li2CO3. However, LiOH still suffers from lack of enough hardness for practical use. In this study, various substrates, were modified with LiOH. Their X-ray d
Autor:
Changsoo Kim, Jaeyoun Jang, Jaehyung Park, Duck Shin Park, Soon-Bark Kwon, Am Jang, Youngmin Cho, Gwi-Nam Bae
Publikováno v:
Chemosphere
Highlights ► Coughing velocity was found to be 15.3 m/s for male and 10.6 m/s for female. ► The angle of coughed air was around 38° for male and 32° for female. ► Height of test subject and his/her cough speed was linearly correlated.
In
In
Autor:
Soon-Bark Kwon, Jin-Ho Kim, Taesung Kim, Seyoung Kim, Youngmin Cho, Duck-Shin Park, Myungjoon Kim
Publikováno v:
Aerosol and Air Quality Research. 11:570-577
Particulate matter (PM) is one of the major indoor air pollutants in the subway-underground stations in Korea. Various kinds of PM removal methods such as a roll-filter, auto-washable air filter, demister, and electrostatic precipitator are applied i
Publikováno v:
Indoor and Built Environment. 19:366-374
The increasing concerns regarding the management of indoor air quality have become an important issue for subway operators because most subway lines are underground and have poor ventilation. To maintain clean and fresh indoor air in cabins with low
Publikováno v:
Indoor and Built Environment. 17:361-369
With increasing interest in indoor air quality (IAQ), the recommended standards for the IAQ of public transportation were established in 2003 in Hong Kong and in 2007 in Korea. According to the recommended standards on the IAQ of public transportatio