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Intelligent-CCS Fed Marine-Express Model Train Me03 in Mass-Reduced-Mode
Kinjiro Yoshida,Hiroshi Takami,Hazime Mihara 전력전자학회 1998 ICPE(ISPE)논문집 Vol.- No.-
This paper presents a new high-performance intelligent controlled current-source (CCS) system which can compensate for modelling errors of armature resistance, leakage and magnetizing inductances and for space harmonic components of speed EMF's. A shuttle-motion simulation is presented in the mass-reduced-mode in which an equivalent vehicle weight is reduced, by 40kg, from 47kg to 7kg.<br/> This study provides one of the most important key-technologies in driving practical linear synchronous motor (LSM) Maglev vehicle.<br/>
Management of Remnant or Recurrent Lesions after Endoscopic Papillectomy
Ichiro Yasuda,Saito Kobayashi,Kosuke Takahashi,Sohachi Nanjo,Hiroshi Mihara,Shinya Kajiura,Takayuki Ando,Kazuto Tajiri,Haruka Fujinami 대한소화기내시경학회 2020 Clinical Endoscopy Vol.53 No.6
Endoscopic papillectomy (EP) for ampullary adenomas achieves cure rates ranging from 76% to 90%, and recurrence rates are as high as 33%. If remnant or recurrent lesions after prior EP are endoscopically visible and are not suspected of intraductal extension into the biliary or pancreatic duct, repeated snaring and cutting can be performed until all visible lesions are completely resected. However, endoscopic ablative therapies, particularly argon plasma coagulation, can be attempted for tiny or uncertain remnant and recurrent lesions. In addition, intraductal radiofrequency ablation has recently been attempted for residual intraductal lesions after EP at several institutions. Although still under investigation, it has shown some promise. It might be offered as an alternative to surgery, particularly in patients who are unfit for surgery or those who refuse to undergo surgery
Mechanical Analysis of Pion Capture Superconducting Solenoid System for COMET Experiment at J-PARC
Iio, Masami,Yoshida, Makoto,Ye Yang,Taekyung Ki,Okamura, Takahiro,Sasaki, Ken-ichi,Makida, Yasuhiro,Ogitsu, Toru,Mihara, Satoshi,Nakamoto, Tatsushi,Sugano, Michinaka,Terashima, Akio,Kawamata, Hiroshi IEEE 2017 IEEE transactions on applied superconductivity Vol.27 No.4
<P>KEK is currently constructing a long series of superconducting solenoid beamline for the COMET Phase-I experiment at the Hadron facility of J-PARC. The magnet system consists of a 5-T pion capture solenoid, a curved muon transport solenoid, and a large bore detector solenoid. The pion capture solenoid system consists of a large cold mass including four coils with an inner diameter of 1340 mm and a small cold mass including six small coils with an inner diameter of 500 mm. The peak magnetic field on the conductor reaches to 5.4 T at an operation current of 2700 A. This paper presents the design and structural details of a magnet, radiation-resistant coil, cold mass and vacuum vessel, apart from the results of the electromagnetic analysis in two-dimensional (2-D) and 3-D.</P>