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Institution

Tokyo University of Science

EducationTokyo, Japan
About: Tokyo University of Science is a education organization based out in Tokyo, Japan. It is known for research contribution in the topics: Thin film & Enantioselective synthesis. The organization has 15800 authors who have published 24147 publications receiving 438081 citations. The organization is also known as: Tōkyō Rika Daigaku & Science University of Tokyo.


Papers
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Journal ArticleDOI
TL;DR: An enantiomerically enriched pyrimidyl alkanol with either S or R configurations was obtained stochastically from the reaction between pyrimidine-5-carbaldehyde and diisopropylzinc in the presence of achiral silica gel in conjunction with asymmetric autocatalysis with amplification of chirality.

90 citations

Journal ArticleDOI
TL;DR: Superconductivity of nanosized Pb-island structures whose radius is 0.8 to 2.5 times their coherence length was studied under magnetic fields using low-temperature scanning tunneling microscopy and spectroscopy.
Abstract: Superconductivity of nanosized Pb-island structures whose radius is 0.8 to 2.5 times their coherence length was studied under magnetic fields using low-temperature scanning tunneling microscopy and spectroscopy. Spatial profiles of superconductivity were obtained by conductance measurements at zero-bias voltage. Critical magnetic fields for vortex penetration and expulsion and for superconductivity breaking were measured for each island. The critical fields depending on the lateral size of the islands and existence of the minimum lateral size for vortex formation were observed.

90 citations

Journal ArticleDOI
TL;DR: N-Methylation of amines with methanol proceeds at room temperature in the presence of a silver-loaded titanium dioxide (Ag/TiO2) photocatalyst under UV-vis light irradiation to allow facile synthesis/isolation of N-methylamines bearing various functional groups.

90 citations

Journal ArticleDOI
TL;DR: In this article, phase transition temperature and electrical properties of divalent ions (Ca 2+, Sr 2+ and Ba 2+ ) substituted (Bi 1/2 Na1/2 )TiO 3 (BNT)-based ceramics were investigated to investigate the relationship between the substituted ion and the effect on various characteristics.

90 citations

Journal ArticleDOI
TL;DR: It is found that the optimum frequency for intra-body communication is 5 MHz, and that audio frequency signals can be successfully transmitted through human bodies using these devices, even in the presence of excessive external noise.
Abstract: The personal area network (PAN) benefits from a wireless communication system for exchanging various kinds of information through wearable electronic devices. Intra-body communication using the human body as the transmission medium allows wireless communication without the use of airborne radio waves. This paper discusses the results of several experiments on intra-body communication. We found that the optimum frequency for intra-body communication is 5 MHz. We also found that varying the distance between electrodes, varying the type of electrode metal, and the absence of electrode paste did not significantly affect impedance fluctuation. To test our results, we developed an intra-body, 10.7 MHz frequency modulation (FM) transmitter and receiver with stainless steel electrodes to transmit heartbeats. Results show that audio frequency signals can be successfully transmitted through human bodies using these devices, even in the presence of excessive external noise.

90 citations


Authors

Showing all 15878 results

NameH-indexPapersCitations
Kazunori Kataoka13890870412
Yoichiro Iwakura12970564041
Kouji Matsushima12459056995
Masaki Ishitsuka10362439383
Shinsuke Tanabe9872237445
Tatsumi Koi9741150222
Hirofumi Akagi9461843179
Clifford A. Lowell9125823538
Teruo Okano9160528346
László Á. Gergely8942660674
T. Sumiyoshi8885562277
Toshinori Nakayama8640525275
Akihiko Kudo8632839475
Hans-Joachim Gabius8569928085
Motohide Tamura85100732725
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202356
2022137
20211,357
20201,481
20191,510
20181,429