Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Kazumi Sakai"'
Autor:
Junko Yaguchi, Kazumi Sakai, Atsushi Horiuchi, Takashi Yamamoto, Takahiro Yamashita, Shunsuke Yaguchi
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-14 (2024)
Abstract The development of a continuous digestive tract, or through-gut, represents a key milestone in bilaterian evolution. However, the regulatory mechanisms in ancient bilaterians (urbilaterians) are not well understood. Our study, using larval s
Externí odkaz:
https://doaj.org/article/50ac4dcacce649e899d41d57e88c3c51
Autor:
Kazumi Sakai
Publikováno v:
Frontiers in Mechanical Engineering, Vol 10 (2024)
Energy-saving technology has become increasingly significant as one of the carbon-neutral options for suppressing recent global warming. Grease-lubricated bearings have been used in various automotive and industrial machinery, requiring low torque an
Externí odkaz:
https://doaj.org/article/fd1a243be87841b6ac0f6206c151c179
Publikováno v:
Tribology Online, Vol 16, Iss 2, Pp 146-150 (2021)
The grease fluidity and migration inside a ball bearing has been visualized non-destructively by using a neutron imaging technology. It has been clarified that a lithium (Li) complex grease with lower torque lubricates in the channeling state and tha
Externí odkaz:
https://doaj.org/article/a3de0621c43241f9b49c063a1dd5561a
Publikováno v:
eLife, Vol 11 (2022)
Opsins are universal photoreceptive proteins in animals and can be classified into three types based on their photoreaction properties. Upon light irradiation, vertebrate rhodopsin forms a metastable active state, which cannot revert back to the orig
Externí odkaz:
https://doaj.org/article/9505bb4fa5f042dca57d20aa9f797042
Autor:
Keita Sato, Takahiro Yamashita, Hideyo Ohuchi, Atsuko Takeuchi, Hitoshi Gotoh, Katsuhiko Ono, Misao Mizuno, Yasuhisa Mizutani, Sayuri Tomonari, Kazumi Sakai, Yasushi Imamoto, Akimori Wada, Yoshinori Shichida
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
Opsins are G protein-coupled receptors which are activated by light-triggered retinal 11-cis-to-all-trans photoisomerization. Here, the authors report a vertebrate non-visual opsin (Opn5L1) that functions as a Gi-coupled retinal receptor, is deactiva
Externí odkaz:
https://doaj.org/article/3fe70ccf8c3742ffb0bddb9e1628427b
Influence of Li Grease Thickener Types on Film Thicknesses Formed between Smooth and Dented Surfaces
Publikováno v:
Tribology Online, Vol 12, Iss 5, Pp 262-273 (2017)
The lubricant film thickness behaviors of lithium (Li) thickener type greases and their base oil were investigated for the contact between a glass disk and a smooth/dented steel ball using an optical interferometry. The main focus is to understand gr
Externí odkaz:
https://doaj.org/article/56b6e75c4a7d435583f7bb3227fe988d
Autor:
Kazumi Sakai, Kei Tsutsui, Takahiro Yamashita, Naoyuki Iwabe, Keisuke Takahashi, Akimori Wada, Yoshinori Shichida
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
Abstract The genome of Drosophila melanogaster contains seven rhodopsin genes. Rh1-6 proteins are known to have respective absorption spectra and function as visual pigments in ocelli and compound eyes. In contrast, Rh7 protein was recently revealed
Externí odkaz:
https://doaj.org/article/0dbbc612ff4f4176a45a71cca4ffd78b
Publikováno v:
Tribology Online, Vol 11, Iss 2, Pp 168-173 (2016)
This paper describes a study on the effect of base oil type and thickener type on bearing torques with Li type greases. Using a ball bearing tribometer equipped with a torque sensor, friction torque behaviors were determined for model Li greases with
Externí odkaz:
https://doaj.org/article/041db8740ceb4694a8ce7a917a457a5b
Autor:
Mutsuko Kato, Takashi Sugiyama, Kazumi Sakai, Takahiro Yamashita, Hirofumi Fujita, Keita Sato, Sayuri Tomonari, Yoshinori Shichida, Hideyo Ohuchi
Publikováno v:
PLoS ONE, Vol 11, Iss 11, p e0163925 (2016)
Opsin family genes encode G protein-coupled seven-transmembrane proteins that bind a retinaldehyde chromophore in photoreception. Here, we sought potential as yet undescribed avian retinal photoreceptors, focusing on Opsin 3 homologs in the chicken.
Externí odkaz:
https://doaj.org/article/94d4bb19ed354f849a47b1939626b02d
Publikováno v:
Tribology Online, Vol 6, Iss 1, Pp 26-31 (2011)
Previously, we have reported tribological characteristics of a new unique Thermo-Reversible Gel-Lubricants (TR Gel-Lube), which consists of base fluids and gel agent. TR Gel-Lube has low friction property compared with conventional greases under mild
Externí odkaz:
https://doaj.org/article/c510799d948149219e17bafdf5f7ea0c