Zobrazeno 1 - 10
of 334
pro vyhledávání: '"Hak Joon Kim"'
Autor:
Stephen P. Harter, Hak Joon Kim
Publikováno v:
Information Research: An International Electronic Journal, Vol 2, Iss 1, p 9a (1996)
The journal is fundamental to formal scholarly communication. This research reports highlights and preliminary findings from an empirical study of scholarly electronic journals. The purpose of the research is to assess the impact of electronic journa
Externí odkaz:
https://doaj.org/article/2cd1ed8454af4c8482382be79f1841bb
Autor:
Dongho Shin, Younghun Kim, Kee-Jung Hong, Gunhee Lee, Inyong Park, Hak-Joon Kim, Sangwoo Kim, Cheong-Ha Hwang, Kwang-Chul Noh, Bangwoo Han
Publikováno v:
Toxics, Vol 11, Iss 11, p 912 (2023)
The mechanical ventilation systems used in houses are designed to reduce carbon dioxide emissions while minimizing the energy loss resulting from ventilation. However, the increase in indoor fine particulate (PM2.5) concentration because of external
Externí odkaz:
https://doaj.org/article/d971a713da414d798e54cf9fa47e8c65
Publikováno v:
Toxics, Vol 11, Iss 11, p 931 (2023)
The educational and play-related activities of children proceed mainly indoors in a kindergarten. High concentrations of indoor PM2.5 and CO2 have been linked to various harmful effects on children, considerably impacting their educational outcomes i
Externí odkaz:
https://doaj.org/article/f0c77bedbe4a409c9d95d3747ab827c5
Publikováno v:
Applied Sciences, Vol 13, Iss 5, p 3204 (2023)
Liquefied Natural Gas (LNG) is one of the major renewable energy sources and is stored and carried in a storage tank that is designed following international standards. Since LNG becomes highly unstable when it encounters oxygen in the air, a leakage
Externí odkaz:
https://doaj.org/article/0520bfff731141b6951294cf3eafab9f
Publikováno v:
Applied Sciences, Vol 13, Iss 6, p 3534 (2023)
Ultrasonic testing (UT) is one of the most popular non-destructive evaluation (NDE) techniques used in many industries to evaluate structural integrity. The commonly used NDE techniques are basic inspection techniques, such as visual testing (VT), pe
Externí odkaz:
https://doaj.org/article/4066e7312119474fa089ecf1931cc019
Publikováno v:
Integrative Medicine Research, Vol 10, Iss 4, Pp 100729- (2021)
Background: Recently, some adverse effects of moxibustion has been reported such as burns, smoke, allergies, and so on. To overcome the adverse effects of traditional moxibustion, an ultrasonic moxibustion device (UMD) was designed, simulated, fabric
Externí odkaz:
https://doaj.org/article/75928e43a7b14673ad0700e2c4b02172
Publikováno v:
Toxics, Vol 10, Iss 11, p 686 (2022)
An in-duct two-stage electrostatic precipitator (ESP) improved by ion diffusion effect was studied. We increased the collection efficiency of a two-stage electrostatic precipitator without additional energy input by adjusting the space arrangement of
Externí odkaz:
https://doaj.org/article/daa505a6ec8d4f7aa17658aa865b1e3c
Autor:
Jinhyun Park, Seong-Jin Han, Nauman Munir, Yun-Taek Yeom, Sung-Jin Song, Hak-Joon Kim, Se-Gon Kwon
Publikováno v:
Nuclear Engineering and Technology, Vol 51, Iss 7, Pp 1784-1790 (2019)
Accurate and consistent characterization of defects in steam generator tubes (SGT) in nuclear power plants is one of the key issues in the field of nondestructive testing since the large number of signals to be analyzed in a time-limited in-service i
Externí odkaz:
https://doaj.org/article/b5b226b7d5f844cf9d4a0170c1f53dc2
Publikováno v:
Toxics, Vol 10, Iss 10, p 601 (2022)
Particulate matter, including airborne pathogens, is of particular concern because it can cause the spread of diseases through aerosol transmission. In this study, a new concept is proposed: on-demand antiviral electrostatic precipitators (ESPs) with
Externí odkaz:
https://doaj.org/article/c8288d9238fd418f9f6dc88aebcf5132
Publikováno v:
Energies, Vol 15, Iss 18, p 6515 (2022)
Oil mist adversely affects the health of workplace workers, and for this reason, regulations on the limitation of the oil-mist exposure of workers are becoming stricter. In order to reduce the amount of the exposure of workers to oil mist, it is impo
Externí odkaz:
https://doaj.org/article/942b029188e54677b7c7d07f8747b531