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이지열,대곡길웅,박평제 한국균학회 1985 韓國菌學會誌 Vol.13 No.1
Two-hundred fifty specimens of Discomycetes were collected, for the most part, at Gwangneung, Mt. Deokyu, Mt. Seulak, Mt. Sungsu, Mt. Paldal, from March, 1982 to July, 1989. These Discomycetes were identified and classified into 2 orders, 9 families, 18 genera and 23 species. Among them, Helvella pezizoides Afz. ex Fr., Peziza celtica (Boud.) Moser, Humaria hemisphaerica (Wiggers ex Fr.) Fuckel, Trichophaea gregaria (Rehm) Boud., Trichoglossum walteri(Berk.) Durand, Spathularia fiavida Pers. ex Fr., Arachnopeziza aurelia (Pers. ex Fr.) Fuckel, Rutstroemia americana (Durand) White, Rutstroemia macrospora (Peck) Kanouse apud Wehmeyer forma gigaspora Korf, Ascocoryne cylichnium (Tul.) Korf, Bisporella citrina (Batsch. ex Fr.) Korf et Carpenter, Chlorosplenium chlora (Schw. ex Fr.) Curtis, Chlorociboria aeruginascens (Nyl.) Kanouse ex Ramamurthi, Korf et Batra subsp. aeruginascens, Hymenoscyphus scutula (Pers. ex Fr.) Phillips, Cyathicula cyathoidea (Bull. ex Fr.) de Thumen were new records in Korea. These species are described and their Korean names are designated.
이지열,대곡길웅,박평제 한국균학회 1987 韓國菌學會誌 Vol.15 No.4
Twenty three specimens of Discomycetes were collected at Gwangneung, Mt. chiri, Mt. Halla and Mt. Odae from June, 1986 to October, 1987. These Discomycetes were identified and classified into 2 orders, 5 families, 10 genera and 10 species. Among them, Pachyella clypeata(Schw.) Le Gal, Microatoma floccosa(Schw.) Raitviir and Microglossum viride(Pers. ex Fr.) Gill. were newly recorded in Korea. These species were described and their Korean names were designated.
이지열,대곡길웅,박평제 한국균학회 1986 韓國菌學會誌 Vol.14 No.2
Thirty specimens of Discomycetes collected at Mt. Chiri and Gwang-neung from April to October, 1985 were identified and classified into two orders, six families, nine genera and 10 species. Among them, Otidea alutacea (Fr.) Bres. var. alutacea, Galiella celebica (P. Henn.) Nanff., Microglossum rufum (Schw.) Underw. and Cyathicula aquilina (Rehm) Sacc. were newly recorded is Korea. These species were described and their Korean names were designated.
Distortion of Eelectrical Double Layer in Liquid Filtration by Fibrous Filters
Myong‐Hwa Lee,Shogo Hirose,Yoshio Otani 한국입자에어로졸학회 2014 Particle and Aerosol Research Vol.10 No.3
Liquid filtration by membrane filters is essential for the preparation of ultrapure water in semiconductor manufacturing processes. The separation of submicrometer particles suspended in ultrapure water with a laminated fibrous membrane filter was studied numerically and experimentally in the present work. We found that an electricaldouble layer around a single fiber expanded to a large extent at a low ion concentration, as in ultrapure water, anddeformed toward the upstream of the fiber with increasing filtration velocity. Since an increase in the electrical double-layer thickness leads to a decrease in the electrical potential gradient, particles with the same polarity as the fiber approach the fiber more easily and are captured at a high filtration velocity. Experimental results also confirmedthat the collection efficiency of polystyrene latex(PSL) particles through a PTFE filter became higher as the filtration velocity increased.
Facile method to prepare magnetic multi-walled carbon nanotubes by in situ co-precipitation route
Kanokwan Sowichai,Sitthisuntorn Supothina,On-uma Nimittrakoolchai,Takafumi Seto,Yoshio Otani,Tawatchai Charinpanitkul 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.5
An effective method for preparing magnetic multi-walled carbon nanotubes (M-MWCNTs) was proposed by employing an in situ co-precipitation of ammonium ferrous sulfate hexahydrate and ammonium ferric sulfate dodecahydrate in a suspension of commercial MWCNTs. Microscopic and spectroscopic analyses could confirm the presence of magnetite, maghemite and hematite on the surface of M-MWCNTs. Negative charges on the surfaces of acid-treated MWCNTs would lead to the attachment of iron derivatives which possessed positive charge due to electrostatic attraction. As a result, the prepared M-MWCNTs were clearly responsive to a permanent magnetic while the pristine MWCNTs were not.