Zobrazeno 1 - 10
of 341
pro vyhledávání: '"Masaaki, Katayama"'
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 4, Pp 1-10 (2024)
The integration of intelligent reflecting surfaces (IRS) into free-space optical (FSO) communication systems is considered as a promising and innovative approach to overcoming existing challenges due to the strict line-of-sight (LoS) requirements fac
Externí odkaz:
https://doaj.org/article/acd3001cd6684b25b613f11f0b284196
Autor:
Kansuke Kumazawa, Hiraku Okada, Munehiro Matsui, Koyo Tategami, Daisuke Goto, Kiyohiko Itokawa, Fumihiro Yamashita, Masaaki Katayama
Publikováno v:
IEEE Access, Vol 11, Pp 135377-135384 (2023)
In satellite Internet-of-Things (IoT) systems using the 920-MHz band Low Power Wide Area, available channels for each terminal are limited to avoid interference with terrestrial networks. Since this limitation depends on the location of the terminal,
Externí odkaz:
https://doaj.org/article/fb46805e478047999d8bf42ea0411c09
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 5, Pp 1-9 (2022)
Multiple-input-multiple-output (MIMO) optical wireless communication systems are potential candidates for high-speed data transmission in indoor environments. In this work, we present an experimental evaluation of two different MIMO systems, i.e., co
Externí odkaz:
https://doaj.org/article/cec62352b0b547beacb7ff09b91c3d9e
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 1, Pp 1-12 (2021)
In this article, we investigate the performance of the newly designed 4 × 4 optical wireless multiple-input-multiple-output (MIMO-OWC) system based on a linearly-shaped arrangement of transmitters and receivers, to achieve long-distance and high dat
Externí odkaz:
https://doaj.org/article/87f68d92970e4a238ad6079336c48c70
Publikováno v:
IEEE Access, Vol 9, Pp 13064-13075 (2021)
In this article, we consider a wireless relay network using drones as a temporary communication system in a large-scale disaster area. We assume that insufficient drones are present to maintain a wireless connection, and we apply a delay-tolerant net
Externí odkaz:
https://doaj.org/article/6f43cd2d58a84217bd5249bccc116293
Autor:
Masaaki Katayama, Keiichi Ohata, Tamako Miyazaki, Rieko Katayama, Nobuko Wakamatsu, Misa Ohno, Tetsuro Yamashita, Tsuyoshi Oikawa, Takeshi Sugaya, Masao Miyazaki
Publikováno v:
Journal of Veterinary Internal Medicine, Vol 34, Iss 2, Pp 761-769 (2020)
Abstract Background Liver‐type fatty acid‐binding protein (L‐FABP) is a biomarker for early detection of renal disease in humans. Liver‐type fatty acid‐binding protein is cytotoxic oxidation products secreted from proximal tubules under isc
Externí odkaz:
https://doaj.org/article/721fd6d10a1441f5b9d696079d711ac9
Autor:
Kaori IDE, Masaaki KATAYAMA, Ikki MITSUI, Hiroshi SATOH, Ryuji FUKUSHIMA, Yoshio YAMAMOTO, Masahiro YAMASAKI
Publikováno v:
Journal of Veterinary Medical Science; 2024, Vol. 86 Issue 4, p365-373, 6p
Publikováno v:
IEEE Access, Vol 7, Pp 161211-161219 (2019)
In this paper, wireless feedback control of multiple machines over a beacon-enabled IEEE 802.15.4 network is considered. In the beacon-enabled IEEE 802.15.4 network, beacons periodically structure superframes on the time axis, and each superframe con
Externí odkaz:
https://doaj.org/article/a7535bb9f1de42dca10716735b5c0e3c
Publikováno v:
Journal of Veterinary Medical Science. 85:44-48
A 3-year-old, 4.0 kg, intact male domestic shorthair cat presented with postoperative dysuria following urethral resection and anastomosis for urethral rupture. Retrograde urethrography revealed a stricture in the pelvic urethra. Urethroplasty with b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e12cb1d31f7dd35d50a38ace34e38ae
https://doi.org/10.1292/jvms.22-0296
https://doi.org/10.1292/jvms.22-0296
Publikováno v:
Journal of Veterinary Medical Science. 85:180-184
An intact, male mixed-breed cat approximately 3 months of age was referred to Iwate University Veterinary Teaching Hospital with dysuria that developed after a traffic accident. At the initial visit, a cystostomy tube was placed as a temporal urinary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29f20e31d2aa48596df44e6c79890d51
https://doi.org/10.1292/jvms.22-0470
https://doi.org/10.1292/jvms.22-0470