Zobrazeno 1 - 10 of 257 pro vyhledávání: '"Toshio Kawasaki"'
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ESTIMATION OF ORGAN DOSES AND EFFECTIVE DOSES BASED ON IN-PHANTOM DOSIMETRY FOR PAEDIATRIC DIAGNOSTIC CARDIAC CATHETERISATION
Autor: Toshio Kawasaki, Masami Sakakubo, Kanako Ito, Ai Kitagawa
Publikováno v: Radiation Protection Dosimetry. 185:215-221
The present study evaluated the organ doses, effective doses and conversion factors from the dose–area product to effective dose in pediatric diagnostic cardiac catheterization performed by in-phantom dosimetry and Monte Carlo simulation. The organ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67f1e007bb3b8dbc648b5f4dbe8d481e
https://doi.org/10.1093/rpd/ncy298
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3
Prey Items Delivered to Young Northern Goshawks Accipiter gentilis by a Single Pair Breeding in Central Tokyo, Japan
Autor: Haruka Mizumura, Tomohiro Ichinose, Yoshiomi Kunishima, Hiroyoshi Higuchi, Hidehiko Seto, Yoshiaki Takahashi, Fumio Shiratori, Teruaki Ikeda, Toshio Kawasaki
Publikováno v: Ornithological Science. 17:229-235
We examined the diet of young Northern Goshawks Accipiter gentilis before and after fledging through the direct observation of prey items delivered by a single pair breeding in central Tokyo. Observations were conducted from 13 May to 14 August 2015.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a61fdf8a95407efc90cbf689058da62
https://doi.org/10.2326/osj.17.229
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4
A Novel Multi-Band Look-Up Table Based Digital Predistorter with a Single Common Feedback Loop
Autor: Hiroyoshi Ishikawa, Ken Tamanoi, Masahiko Shimizu, Tomoya Ota, Toshio Kawasaki, Shigekazu Kimura, Toru Maniwa
Publikováno v: 2018 Asia-Pacific Microwave Conference (APMC).
This paper proposes a novel adaptive multi-band look-up table (LUT)-based digital predistorter (DPD) with a single common feedback loop for concurrent multi-band power amplifiers (PAs). The proposed DPD reduces the total complexity to one-hundredth b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b4054bdc517230dcc46966c103b4ff27
https://doi.org/10.23919/apmc.2018.8617473
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5
An Experimental Study on Reduced-Complexity Multi-Band Digital Predistorter with a Single Common Feedback Loop
Autor: Toru Maniwa, Masahiko Shimizu, Makoto Yoshida, Shigekazu Kimura, Tomoya Ota, Ken Tamanoi, Toshio Kawasaki
Publikováno v: PIMRC
This paper proposes how to modify the reduced-complexity multi-band digital predistorter (DPD) with a single common feedback loop we previously proposed, in order to compensate for nonlinear distortions significantly where imperfection of the analog
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a70c070b3d734b1a2302d6620baa7b55
https://doi.org/10.1109/pimrc.2018.8581002
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6
A reduced complexity digital predistorter with a single common feedback loop for concurrent multi-band power amplifiers
Autor: Toru Maniwa, Toshio Kawasaki, Makoto Yoshida, Shigekazu Kimura, Ken Tamanoi, Tomoya Ota
Publikováno v: 2017 IEEE Asia Pacific Microwave Conference (APMC).
This paper proposes a reduced complexity digital predistorter (DPD) with a single common feedback loop for concurrent multi-band power amplifiers (PAs). Some multi-band DPD schemes with a single common feedback loop have been proposed; however the co
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ca118adb855aa0d26277104a26f932b
https://doi.org/10.1109/apmc.2017.8251516
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7
A novel digital predistorter compensating for even order distortions of concurrent multiband power amplifiers with a single common feedback loop
Autor: Ken Tamanoi, Toru Maniwa, Tomoya Ota, Shigekazu Kimura, Toshio Kawasaki, Makoto Yoshida
Publikováno v: PIMRC
This paper proposes a novel scheme of digital predistorter (DPD) that can concurrently compensate for both the odd-order distortions and the even-order distortions for concurrent multi-band power amplifiers (PAs) at low super high frequency (SHF) and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::516aba5661494cca58bbf1d2e6cee661
https://doi.org/10.1109/pimrc.2017.8292178
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8
Organ dose and effective dose estimation in paediatric chest radiographic examinations by using pin silicon photodiode dosemeters
Autor: Shuji Koyama, Keisuke Fujii, Takahiko Aoyama, Toshio Kawasaki, Chiyo Yamauchi-Kawaura
Publikováno v: Radiation Protection Dosimetry. 154:314-319
Organ and effective doses during paediatric chest radiographic examination were investigated for various tube voltages between 60 and 110 kV at a constant milliampere-second value and focus-to-film distance by using an in-phantom dose measuring syste
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b53b9f278348559cc22b2f6cf87027c
https://doi.org/10.1093/rpd/ncs251
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10
Evaluation of organ doses in CT examinations with an infant anthropomorphic phantom
Autor: T. Horiuchi, Toshio Kawasaki, O. Miyazaki, Keiichi Akahane, A. Shimada, Keisuke Fujii, H. Nagmatsu, M Yamauchi, Chiyo Yamauchi-Kawaura
Publikováno v: Radiation Protection Dosimetry. 147:151-155
The aim of this study is to evaluate organ doses in infant CT examinations with multi-detector row CT scanners. Radiation doses were measured with radiophotoluminescence glass dosemeters set in various organ positions within a 1-y-old child anthropom
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24763b981a0dc2499cce1508cc73a98d
https://doi.org/10.1093/rpd/ncr289
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