Zobrazeno 1 - 10
of 456
pro vyhledávání: '"Joon-Ho Choi"'
Publikováno v:
IEEE Access, Vol 12, Pp 159473-159487 (2024)
This paper proposes an isolated DC-DC converter to cope with 800 V input voltage and 48 V output voltage conditions of the auxiliary power module in the next generation 800 V electric vehicles. On the primary side, a split-capacitor structure and a s
Externí odkaz:
https://doaj.org/article/a737b9fc181a476cb024b7db10f09690
Publikováno v:
IEEE Access, Vol 12, Pp 139804-139820 (2024)
Transformerless inverters (TIs) are widely employed in photovoltaic (PV) applications due to their cost-effectiveness, compact size, low weight, and high efficiency. However, the absence of electrical isolation can result in ground leakage current du
Externí odkaz:
https://doaj.org/article/8984af01827b411a9a60be90927c82e0
Publikováno v:
IEEE Access, Vol 12, Pp 114304-114318 (2024)
This paper presents a method for the detection and location of open conductor faults (OCFs) in power distribution networks using contingency analysis (CA) based on unsymmetrical power flow calculations. The proposed method is designed for use in dist
Externí odkaz:
https://doaj.org/article/289a127127db429dae677fb05559702b
Publikováno v:
한국균학회지, Vol 51, Iss 3, Pp 239-243 (2023)
The Golovinomyces biocellatus complex is known to consist of powdery mildew from the Golovinomyces genus, associated with host plants from the Lamiaceae family. Recent molecular phylogenetic analyses have resolved the taxonomic composition of this co
Externí odkaz:
https://doaj.org/article/b3b404f7a6a741f29908265c3f8a13c6
Publikováno v:
한국균학회지, Vol 51, Iss 2, Pp 135-139 (2023)
Since the first record of an anamorph of Neoerysiphe galeopsidis (syn. Erysiphe galeopsidis) on Lamium album subsp. barbatum in Korea in 1992, no scientific information has been added. Seven additional anamorphic samples (2003–2022) and one teleomo
Externí odkaz:
https://doaj.org/article/fadd6103f1b649e6bc4468bd129f6b67
Publikováno v:
한국균학회지, Vol 51, Iss 2, Pp 147-153 (2023)
Dark brown leaf molds growing in a vein-limited pattern have been continuously observed on the lower leaf surface of Fatoua villosa in Korea. Fifteen samples deposited in the Korea University herbarium were examined for fungal morphological character
Externí odkaz:
https://doaj.org/article/44cd930288c047b9ac4a6ea117cc416c
Publikováno v:
Mycobiology, Vol 51, Iss 2, Pp 67-71 (2023)
AbstractA powdery mildew (Erysiphaceae) has been continuously collected on the leaves of Lonicera harae in the southern part of the Korean Peninsula, where this shrub is indigenous. Microscopic examination of the asexual morphs revealed that the curr
Externí odkaz:
https://doaj.org/article/25489514186f438da4e2ced0b3cd3982
Publikováno v:
IEEE Access, Vol 11, Pp 81545-81562 (2023)
This paper proposes a new isolated high step-down DC–DC converter based on the phase-shift full-bridge converter. The proposed converter has some properties very suitable for high step-down applications including a high step-down ratio, low transfo
Externí odkaz:
https://doaj.org/article/34599647fd0b4d36b1746b0cd680a6e5
Publikováno v:
한국균학회지, Vol 50, Iss 3, Pp 243-248 (2022)
In Japan and China, Podosphaera pseudofusca causes powdery mildew in Fatoua villosa. During a taxonomic revision of Korean powdery mildew fungi, isolates newly collected from F. villosa were studied. Through morphological examination and molecular ph
Externí odkaz:
https://doaj.org/article/1b1ad6c38c2a4d488169a254f3b66710
Autor:
Young-Joon Choi, Jun Hyuk Park, In-Young Choi, Lamiya Abasova, Joon-Ho Choi, Dong-Hyeon Lee, Chang Sun Kim
Publikováno v:
한국균학회지, Vol 50, Iss 2, Pp 137-141 (2022)
In Korea, powdery mildew has been observed on Quercus rubra, commonly called the northern red oak tree. Based on its morphological and molecular phylogenetic analyses, the fungal agent was identified as Erysiphe quercicola, but it was distinct from t
Externí odkaz:
https://doaj.org/article/cffddbf2eb164c15ace39382ea5af85f