Tsutomu Koizumi

Numerical Simulation on Coupling Current for Multifilamentary HTS Wire

Tsutomu Koizumi, Eizi Morikawa, S. B. Kim, Hiroshi Ueda

Since a high temperature superconducting (HTS) wire such as Bi-2223 (Bi 2 Sr 2 Ca 2 Cu 3 O) and REBCO((RE)Ba 2 Cu 3 O) tapes indicates good superconducting characteristics under high magnetic field, ultra-high field magnets wound HTS wire are applicable …

jp (code pays fourni par la source)

Platelet precipitate in an age-hardening Mg-Zn-Gd alloy

Tsutomu Koizumi, M. Egami, Koichi Yamashita, Eiji Abe

jp (code pays fourni par la source)

International Round Robin Test for Critical Current Measurement of RE-Ba-Cu-O Superconducting Tapes

Gen Nishijima, Kōzō Osamura, Tatsuoki Nagaishi, Toru Fukushima et autres

VAMAS TWA 16 promoted an international round robin test (RRT) on critical current (Ic) measurement of RE-BaCu-O (REBCO; RE = rare earth) superconductors to establish the transport Icmeasurement method in liquid nitrogen bath without an external magnetic field. Ten laboratories from five …

jp, it, fr, kr (code pays fourni par la source)

Platelet-zone in an age-hardening Mg-Zn-Gd alloy

Tsutomu Koizumi, M. Egami, K. Yamashita, Eiji Abe

The structure of a unique platelet zone with a three close-packed layer thickness, which occurred in a Mg-1at.%Zn-2at.%Gd alloy annealed at low temperatures (

Cardiac overexpression of perilipin 2 induces dynamic steatosis: prevention by hormone-sensitive lipase

Masami Ueno, Jinya Suzuki, Masamichi Hirose, Satsuki Sato et autres

Cardiac intracellular lipid accumulation (steatosis) is a pathophysiological phenomenon observed in starvation and diabetes mellitus. Perilipin 2 (PLIN2) is a lipid droplet (LD)-associated protein expressed in nonadipose tissues, including the heart. To explore the pathophysiological function of myocardial PLIN2, we generated transgenic …

jp, us (code pays fourni par la source)

Minor actinides recovery from irradiated fuel for SmART cycle test

Masayuki Takeuchi, Yuichi Sano, So Watanabe, Masaumi Nakahara et autres

jp (code pays fourni par la source)

Development of 22 kV HTS Triaxial Superconducting Bus

Kazuhisa Adachi, Hideo Sugane, Tianlong Wang, Hiroki Ohnishi et autres

When conventional power cables are replaced with superconducting ones, it is necessary to realize a large transmission capacity with a low heat-road from an economic standpoint. In this regard, the isolation power bus (IPB), which is used to connect a generator to …

jp (code pays fourni par la source)

Design of 22-kV 10-kA HTS Triaxial Superconducting Bus

Kazuhisa Adachi, Hiroki Ohnishi, Ryusuke Hironaga, Shigeki Sano et autres

A 22-kV 10-kA HTS superconducting bus was designed and manufactured with YBCO superconducting tapes. A triaxial configuration was adopted to minimize the ac loss of the cable without shielding layer. The YBCO tapes were prepared by a TFA-MOD (trifluoroacetic acid-metal organic deposition) …

jp (code pays fourni par la source)

Transport Performance and Current Distribution of HTS Current Lead Prepared by the TFA-MOD Processed YBCO Tapes

Ryosuke Matsumura, Yutaka Yamada, Yasuo Hikichi, Ryusuke Hironaga et autres

High Temperature Superconducting HTS current lead has been prepared by the TFA-MOD processed YBCO tapes. The YBCO tape has higher critical current density Jc and better magnetic property than the Bi2223 tape. Furthermore, thermal conductivity of YBCO tape with thin Ag layer …

jp (code pays fourni par la source)

Development of REBCO Coated Conductors by TFA-MOD Method With High Properties in Magnetic Fields

Katsunori Kimura, Ryusuke Hironaga, Tenshou Nakamura, Yasuo Takahashi et autres

With technological advance of the REBaCuO (RE: Rare Earth elements, REBCO) coated conductors (CC), development of the superconducting applications for its practical use has been carried out recently in various fields. In addition, improvement of the magnetic properties of REBCO CCs makes …

jp (code pays fourni par la source)

Development of Artificial Pinning Centers Doped ontoREBCO Coated Conductor using the TFA-MOD Method

Kazunari KIMURA, Ryusuke Hironaga, Yasuo Takahashi, Tsutomu Koizumi et autres

Recently, high-temperature, superconducting coated conductors (CCs) are being used for various applications, and further improvement of the in-field transport property is required. In order to improve the magnetic field and angular dependences, introducing artificial pinning centers (APC) into the superconducting layer is …

jp (code pays fourni par la source)

Current Transport Properties of TFA-MOD Processed Long-Length $\mbox{Y}_{\mathrm{x}}\mbox{Gd}_{1\mbox{-}{\mathrm{x}}}\mbox{Ba}_{2}\mbox{Cu}_{3}\mbox{O} _{\mathrm{y}}$ Coated Conductor Doped With $\mbox{BaZrO}_{3}$ Artificial Pinning Centers

Masayoshi Inoue, Kenta Tanaka, Kazutaka Imamura, Kohei Higashikawa et autres

We have investigated the current transport properties of batch furnace processed TFA-MOD YxGd1-xBa2Cu3Oy(YGdBCO) coated conductor (CC) doped with nanoscale BaZrO3artificial pinning centers (APCs). As the comparison with those of previous processed YGdBCO CC, it has been confirmed that the present process is …

jp (code pays fourni par la source)