Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Noritaka Nakaso"'
Autor:
Toshihiro Tsuji, Toru Oizumi, Nobuo Takeda, K. Takayanagi, Kazushi Yamanaka, Shingo Akao, Noritaka Nakaso
Publikováno v:
International Journal of Thermophysics. 36:3440-3452
A collimated surface acoustic wave (SAW) circles around the equator of a sphere hundreds of times. Because of the long distance travel of the collimated SAW, a small change in the SAW propagation caused by the environment of the sphere can be accumul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4928908615d2eca37bdf07a3a0c3c62
https://doi.org/10.1007/s10765-015-1967-3
https://doi.org/10.1007/s10765-015-1967-3
Autor:
Toshihiro Tsuji, Noritaka Nakaso, Shingo Akao, Satoshi Hagihara, Nobuo Takeda, Kazushi Yamanaka, Toru Oizumi, Takayuki Yanagisawa, Yusuke Tsukahara, Kosuke Takayanagi
Publikováno v:
MATERIALS TRANSACTIONS. 55:988-993
In manufacturing process of semiconductor, blue light emitting diode (LED), and lithium ion battery, detection and monitoring of trace water vapor (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::babeb6c564a680a13ba6679073986975
https://doi.org/10.2320/matertrans.i-m2014807
https://doi.org/10.2320/matertrans.i-m2014807
Autor:
Takayuki Yanagisawa, Kazushi Yamanaka, Toshihiro Tsuji, Satoshi Hagihara, Noritaka Nakaso, Shingo Akao, Toru Oizumi, Nobuo Takeda, Ryosuke Mihara, Tsuneo Ohgi, Tomohiro Saito
Publikováno v:
MATERIALS TRANSACTIONS. 55:1040-1044
In order to commonly use explosive H2 gas as an energy source, fast, sensitive, and low-power consumption sensor is required. We developed a ball surface acoustic wave (SAW) sensor with porous PdPt alloy film to realize such a sensor. The sensor wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d9aca98e04c514876ee2a2b835edd14
https://doi.org/10.2320/matertrans.i-m2014816
https://doi.org/10.2320/matertrans.i-m2014816
Publikováno v:
Sensors and Actuators B: Chemical. 144:247-254
The paper reports on development of a novel method for fabrication of highly sensitive spherical surface acoustic wave (Ball-SAW) devices for odor-sensing. The proposed method is based on functionalization of the Ball-SAW devices’ surface by means
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6a7f52736d610b5010577494dbb65d9
https://doi.org/10.1016/j.snb.2009.10.059
https://doi.org/10.1016/j.snb.2009.10.059
Publikováno v:
Electrical Engineering in Japan. 168:41-51
A thin beam of waves usually diverges due to diffraction, which is a limitation of any device using such waves. However, a surface acoustic wave (SAW) on a sphere with an appropriate aperture does not diverge but is collimated, realizing ultra-multip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cfabd2c9b101fa4cb3521f13310bc12
https://doi.org/10.1002/eej.20817
https://doi.org/10.1002/eej.20817
Publikováno v:
Acoustical Science and Technology. 30:2-6
Detection of hydrogen gas is a crucial task for establishing safety and reliability of fuel cells, a key technology for the environment and our society. However, hydrogen is difficult to detect and various hydrogen sensors have many drawbacks. Here w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcb4c7e4e89e7d39f2babbbe928a5516
https://doi.org/10.1250/ast.30.2
https://doi.org/10.1250/ast.30.2
Autor:
Bryan Maxey, Kazushi Yamanaka, Noritaka Nakaso, Nobuo Takeda, Toshihiro Tsuji, Dongyoun Sim, Naoya Iwata
Publikováno v:
Japanese Journal of Applied Physics. 47:4070-4075
A newly designed 1-mm diameter harmonic ball surface acoustic wave (SAW) gas sensor has a double-electrode interdigital transducer (IDT) for driving multiple frequencies. The fundamental frequency is 80 MHz. The difference in delay time between a fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77eb3b05c136a6ca72339fa415e6a9d2
https://doi.org/10.1143/jjap.47.4070
https://doi.org/10.1143/jjap.47.4070
Autor:
Naoya Iwata, Toshihiro Tsuji, Noritaka Nakaso, Masanori Sakuma, Kazushi Yamanaka, Shingo Akao, Hidekazu Ohnishi, Kazuhiro Noguchi
Publikováno v:
Japanese Journal of Applied Physics. 47:4086-4090
For the safety and security of a society, ubiquitous multiple-gas sensors are required. The gas chromatograph (GC) based on the separation of gases according to the elution time is frequently used for multiple-gas sensing, but it is not portable. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1bd86ee14052e5fd8ed838713797020
https://doi.org/10.1143/jjap.47.4086
https://doi.org/10.1143/jjap.47.4086
Publikováno v:
Japanese Journal of Applied Physics. 47:4081-4085
We evaluated the characteristics of roundtrip propagation on a ball surface acoustic wave (SAW) device by controlling the approach of electrodes to the quartz ball. In order to investigate the relationship between the interdigital transducer (IDT) po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4a43a5f6eff86cbf4d2a7df613a7076
https://doi.org/10.1143/jjap.47.4081
https://doi.org/10.1143/jjap.47.4081
Publikováno v:
IEEJ Transactions on Sensors and Micromachines. 128:487-492
In this report, we improve a sensitivity of odor sensing system using ball SAW devices. Although, we reported the three-flavor identification using four ball SAW devices with different sensing films, the concentrations of the fruits flavors had to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1478a6fd9204986a0586877cf384e72c
https://doi.org/10.1541/ieejsmas.128.487
https://doi.org/10.1541/ieejsmas.128.487