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Lee, Young-June,Masami Hayashi Korean Society of Applied Entomology 2004 Journal of Asia-Pacific Entomology Vol.7 No.1
As the third part of the taxonomic review of Cicadidae (Hemiptera, Auchenorrhyncha) from Taiwan, 18 species belonging to six genera in cicadine tribes, Dundubiini (two other genera of Cicadina) and Moganiini, and a tibicinine tribe, Huechysini, are treated in this paper. A new genus, Formocicada Lee and Hayashi, and two new species, Tanna infuscata Lee and Hayashi and Formocicada taiwana Lee and Hayashi, are described. Four species are synonymized: Tanna taikosana Kato, 1925 and Tanna horiensis Kato, 1926 with Tanna taipinensis (Matsumura, 1907), and Tanna horishana Kato, 1925 and Tanna tarowanensis (Matsumura, 1927) with Tanna viridis Kato, 1925. Cryptotympana facialis (Walker, 1858), Cosmopsaltria doryca (Boisduval, 1835), and Leptopsaltria tuberosa (Signoret, 1847) are newly considered as species erroneously recorded from Taiwan. Informations on the biology and male chirpings are also provided.
Synthesis of Directly Connected BODIPY Oligomers through Suzuki–Miyaura Coupling
Hayashi, Yosuke,Yamaguchi, Shigeru,Cha, Won Young,Kim, Dongho,Shinokubo, Hiroshi American Chemical Society 2011 ORGANIC LETTERS Vol.13 No.12
<P>Treatment of a <I>meso</I>-arylboron dipyrrin (BODIPY) with NBS provides mono- and dibrominated BODIPYs at the 2- and 6-positions in excellent yields with high regioselectivity. Brominated products can be employed as a nice building block for the synthesis of a variety of BODIPY derivatives through Suzuki–Miyaura coupling. Because of a lack of substituents at the 1,3,5,7-positions, a directly β–β-linked BODIPY dimer exhibits a completely coplanar conformation of BODIPY units, offering effective π-conjugation.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/orlef7/2011/orlef7.2011.13.issue-12/ol200799u/production/images/medium/ol-2011-00799u_0001.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ol200799u'>ACS Electronic Supporting Info</A></P>
Hayashi, Fumio,Liu, Han,Seno, Keiji Korean Society of Photoscience 2002 Journal of Photosciences Vol.9 No.2
Raft is a distinctive membrane domain enriched in a certain class of lipids, cholesterol, and proteins observed on the plasma membrane. Growing evidence has revealed that such membrane domains play key roles in signal transduction, fertilization, development, transmitter release, and so on. Recently, we have isolated raft-like detergent-resistant membrane (DRM) fraction from bovine photoreceptor rod outer segments. Transducin and its effecter, cGMP-phosphodiesterase, elicited stimulus-dependent translocation between detergent-soluble membrane and DRM. This suggested potential importance of such distinct membrane domains in vertebrate phototransduction. Here, we will discuss physiological meaning of the translocation of major components of cGMP cascade to raft-like membrane in phototransduction. We would like to propose a hypothesis that raft-like membrane domains on the disk membrane are the place where cGMP cascade system could be quenched.
Microstructure and Flexural Strength of Hardmetals
Hayashi, Koji Korean Powder Metallurgy Institute 1994 한국분말재료학회지 (KPMI) Vol.1 No.2
The characteristics of various important microstructural factors of WC-base hard- metals (cemented carbides) such as the amount of Co metal binder phase, the carbide grain size, the microstructural defects acting as a fracture source, the solid solubility of tungsten in the binder phase affected by the carbon content, the precipitation of $Co_3W$, the domain size of binder phase, the formation of ${\beta}-free$ layer or Co-rich layer and CVD or PVD coated layer, and the effects of these factors on the flexural strength of the hardmetals are reviewed.
Fabrication of Nanocomposite Powders by Sonochemical Method
Hayashi, Yamato,Sekino, Tohru,Niihara, Koichi The Korean Powder Metallurgy Institute 2001 한국분말재료학회지 (KPMI) Vol.8 No.3
Nano particles have recently been a major research interest, motivated by their unusual physical and chemical properties. Such particles can be synthesized using physical and chemical methods. The physical methods need expensive installation like vacuum induction furnace, whereas in chemical methods the process in generally very simple and low cost. In this study, simple and new fabrication process by using ultrasound was investigated to prepare the nano-sized metal particles on various powders at room temperature.
Genome Research on Peach and Pear
Hayashi, Tateki,Yamamoto, Toshiya The Korean Society of Plant Biotechnology 2002 Plant molecular biology and biotechnology research Vol.4 No.2
A lot of SSRs (simple sequence repeats) in peach and pear from enriched genomic libraries and in peach from a cDNA library were developed. These SSRs were applied to other related species, giving phenograms of 52 Prunes and 60 pear accessions. Apple SSRs could also be successfully used in Pyrus spp. Thirteen morphological traits were characterized on the basis of the linkage map obtained from an $F_2$ population of peach. This map was compiled with those morphological markers and 83 DNA markers, including SSR markers used as anchor loci, to compare different peach maps. Molecular markers tightly linked to new root-knot nematode resistance genes were also found. A linkage map including disease related genes, pear scab resistance and black spot susceptibility, in the Japanese pear Kinchaku were constructed using 118 RAPD markers. Another linkage map, of the European pear Bartlett, was also constructed with 226 markers, including 49 SSRs from pear, apple, peach and cherry. Maps of other Japanese pear cultivars, i.e., Kousui and Housui, were also constructed. These maps were the first results of pear species.
DECOMPOSITION FORMULAE FOR GENERALIZED HYPERGEOMETRIC FUNCTIONS WITH THE GAUSS-KUMMER IDENTITY
Hayashi, Naoya,Matsui, Yutaka Korean Mathematical Society 2014 대한수학회논문집 Vol.29 No.1
In the theory of special functions, it is important to study some formulae describing hypergeometric functions with other hypergeometric functions. In this paper, we give some methods to obtain a lot of decomposition formulae for generalized hypergeometric functions.