Search Results 1-20 of 36

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  • Hyperthermia Using Magnetic Nanoparticles  [in Japanese]

    大多 哲史 , 竹村 泰司

    まぐね = Magnetics Japan 13(4), 187-192, 2018

  • First principles calculation on defect formation in n-type Si crystals for IGBT  [in Japanese]

    TSUCHIYA Daiki , SUEOKA Koji , YAMAMOTO Hidekazu

    … <p>In order to realize a low-carbon society, reduction of loss of power devices is the urgent problem to be solved. … An essential factor for achieving low-loss bipolar devices, such as Insulated Gate Bipolar Transistors (IGBTs) and pin diodes, is controlling the bulk lifetime of phosphorus (P) doped n-type silicon (Si) crystals. … To achieve this, first principles calculation was performed on possible reactions of intrinsic point defects (vacancy <i>V</i> …

    The Proceedings of The Computational Mechanics Conference 2018.31(0), 200, 2018

    J-STAGE 

  • Evaluation of Dispersibility in Liquid and AC Magnetization Properties of Polyion Complex-Coupled Magnetic Nanoparticles

    Shi G. , Trisnanto S. B. , Nakai K. , Yusa S. , Yamada T. , Ota S. , Takemura Y.

    … We then estimated the intrinsic loss power (ILP) from the areas of the alternating current (AC) hysteresis loops and measured the AC magnetization of the magnetic PIC aggregate. …

    Journal of the Magnetics Society of Japan 42(2), 41-48, 2018

    J-STAGE 

  • 6.78MHz-band rectifier with impedance matching circuit considering intrinsic ohmic loss  [in Japanese]

    鈴木 暁士 , 上田 尚人 , 袁 巧微 , 陳 強

    電気学会研究会資料. SPC = The papers of technical meeting on semiconductor power converter, IEE Japan 2017(104-116), 15-18, 2017-07-27

  • 6.78MHz-band rectifier with impedance matching circuit considering intrinsic ohmic loss  [in Japanese]

    鈴木 暁士 , 上田 尚人 , 袁 巧微 , 陳 強

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 117(158), 15-18, 2017-07-27

  • 6.78MHz-band rectifier with impedance matching circuit considering intrinsic ohmic loss  [in Japanese]

    鈴木 暁士 , 上田 尚人 , 袁 巧微 , 陳 強

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 117(157), 15-18, 2017-07-27

  • Modeling of power losses in poly-V belt transmissions: hysteresis phenomena (standard analysis)

    SILVA Carlos A.F. , MANIN Lionel , RINALDI Renaud G. , REMOND Didier , BESNIER Etienne , ANDRIANOELY Marie-Ange

    … <p>A simulation software is being developed for predicting the power losses in poly-V belt transmissions. … For this purpose, some theoretical models have been implemented considering different types of power losses taking place in a Front Engine Accessory Drive (FEAD). …

    Journal of Advanced Mechanical Design, Systems, and Manufacturing 11(6), JAMDSM0085-JAMDSM0085, 2017

    J-STAGE 

  • MODELLING OF POWER LOSSES IN POLY-V BELT TRANSMISSIONS: HYSTERESIS PHENOMENA  [in Japanese]

    A.F. SILVA Carlos , MANIN Lionel , G. RINALDI Renaud , REMOND Didier , BESNIER Etienne , ANDRIANOELY Marie-Ange

    … <p>A simulation software is being developed to estimate the power loss in poly-v belt transmissions. … For this purpose, theoretical models have been implemented considering different types of power losses taking place in a Front Engine Accessory Drive (FEAD). …

    The Proceedings of the JSME international conference on motion and power transmissions 2017(0), 10-11, 2017

    J-STAGE 

  • Dipole-dipole interaction and its concentration dependence of magnetic fluid evaluated by alternating current hysteresis measurement

    Ota Satoshi , Yamada Tsutomu , Takemura Yasushi

    … Moreover, intrinsic loss power (ILP) was estimated from the areas of the ac hysteresis loops. …

    Journal of Applied Physics 117(17), 17D713(2015), 2015-03-06

    IR 

  • An electroabsorption modulator integrated DFB laser array integrated with low-loss optical multiplexer for 100GbE  [in Japanese]

    Fujisawa Takeshi , Kanazawa Shigeru , Ueda Yuta , Kobayashi Wataru , Takahata Kiyoto , Ohki Akira , Itoh Toshio , Kohtoku Masaki , Ishii Hiroyuki

    25Gの電界吸収型変調器集積レーザ(EADFBレーザ)4台、及びそれらの低損失光合波器(MUX)をモノリシック集積したチップを用いた、100Gbitイーサネット(100GbE)用小型送信モジュールを作製した。原理損のない、縦列接続したマッハ・ツェンダフィルタを合波器(MZ-MUX)に用いている。作製したMZ-MUXのロスは2から3dBであり、従来の1×4MMIのロスに比べて4dB程度改善した。この …

    Technical report of IEICE. LQE 113(395), 135-140, 2014-01-23

  • An electroabsorption modulator integrated DFB laser array integrated with low-loss optical multiplexer for 100GbE  [in Japanese]

    Fujisawa Takeshi , Kanazawa Shigeru , Ueda Yuta , Kobayashi Wataru , Takahata Kiyoto , Ohki Akira , Itoh Toshio , Kohtoku Masaki , Ishii Hiroyuki

    25Gの電界吸収型変調器集積レーザ(EADFBレーザ)4台、及びそれらの低損失光合波器(MUX)をモノリシック集積したチップを用いた、100Gbitイーサネット(100GbE)用小型送信モジュールを作製した。原理損のない、縦列接続したマッハ・ツェンダフィルタを合波器(MZ-MUX)に用いている。作製したMZ-MUXのロスは2から3dBであり、従来の1×4MMIのロスに比べて4dB程度改善した。この …

    Technical report of IEICE. OPE 113(394), 135-140, 2014-01-23

  • An electroabsorption modulator integrated DFB laser array integrated with low-loss optical multiplexer for 100GbE  [in Japanese]

    Fujisawa Takeshi , Kanazawa Shigeru , Ueda Yuta , Kobayashi Wataru , Takahata Kiyoto , Ohki Akira , Itoh Toshio , Kohtoku Masaki , Ishii Hiroyuki

    25Gの電界吸収型変調器集積レーザ(EADFBレーザ)4台、及びそれらの低損失光合波器(MUX)をモノリシック集積したチップを用いた、100Gbitイーサネット(100GbE)用小型送信モジュールを作製した。原理損のない、縦列接続したマッハ・ツェンダフィルタを合波器(MZ-MUX)に用いている。作製したMZ-MUXのロスは2から3dBであり、従来の1×4MMIのロスに比べて4dB程度改善した。この …

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 113(396), 135-140, 2014-01-23

  • An electroabsorption modulator integrated DFB laser array integrated with low-loss optical multiplexer for 100GbE  [in Japanese]

    Fujisawa Takeshi , Kanazawa Shigeru , Ueda Yuta , Kobayashi Wataru , Takahata Kiyoto , Ohki Akira , Itoh Toshio , Kohtoku Masaki , Ishii Hiroyuki

    25Gの電界吸収型変調器集積レーザ(EADFBレーザ)4台、及びそれらの低損失光合波器(MUX)をモノリシック集積したチップを用いた、100Gbitイーサネット(100GbE)用小型送信モジュールを作製した。原理損のない、縦列接続したマッハ・ツェンダフィルタを合波器(MZ-MUX)に用いている。作製したMZ-MUXのロスは2から3dBであり、従来の1×4MMIのロスに比べて4dB程度改善した。この …

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 113(393), 135-140, 2014-01-23

  • An electroabsorption modulator integrated DFB laser array integrated with low-loss optical multiplexer for 100GbE  [in Japanese]

    Fujisawa Takeshi , Kanazawa Shigeru , Ueda Yuta , Kobayashi Wataru , Takahata Kiyoto , Ohki Akira , Itoh Toshio , Kohtoku Masaki , Ishii Hiroyuki

    25Gの電界吸収型変調器集積レーザ(EADFBレーザ)4台、及びそれらの低損失光合波器(MUX)をモノリシック集積したチップを用いた、100Gbitイーサネット(100GbE)用小型送信モジュールを作製した。原理損のない、縦列接続したマッハ・ツェンダフィルタを合波器(MZ-MUX)に用いている。作製したMZ-MUXのロスは2から3dBであり、従来の1×4MMIのロスに比べて4dB程度改善した。この …

    電子情報通信学会技術研究報告. MWP, マイクロ波・ミリ波フォトニクス 113(397), 135-140, 2014-01-16

  • A Power Efficiency Improvement Technique for A Bidirectional Dual Active Bridge DC-DC Converter with Digital Control  [in Japanese]

    TAKASAKI Mika , NAGATA Shun , FURUKAWA Yutaka , HIROSE Toshiro , ISHIZUKA Yoichi

    近年,バッテリを含む電力供給ネットワークの多様化のため,双方向で電力の伝送を可能とするDC-DCコンバータの開発が世界中で強まっている。なかでも,Dual Active BridgeDAB)DC-DCコンバータは単純な構造であることや,対称な回路構成の為に双方向の電力伝送における特性が等しいなどの特徴から多くの場面で用いられている。この回路を用いるうえで潜在的に、軽負荷時のスイッチングサージ及び電 …

    Technical report of IEICE. Energy engineering in electronics and communications 113(311), 13-20, 2013-11-22

  • A power efficiency improvement technique for a bi-directional dual active bridge DC-DC converter at light load

    Takasaki Mika , Ishizuka Yoichi , Ninomiya Tamotsu , Furukawa Yutaka , Hirose Toshiro

    … Recently, the bi-directional dc-dc converter has been focused on because of the huge demand for diversification of power supply network including battery. … However, power efficiency at light load is the intrinsic problem of a bi-directional DAB DC-DC converter. … This method can reduce a switching surge without other circuits such as snubber and improve power efficiency at light load. …

    Energy Conversion Congress and Exposition (ECCE), 2013 IEEE, 1414-1421, 2013

    IR 

  • Switching surge reduction of a bi-directional dual active bridge DC-DC converter with a digital operation

    Takasaki Mika , Ishizuka Yoichi , Ninomiya Tamotsu , Furukawa Yutaka , Hirose Toshiro

    … Recently, the bi-directional dc-dc converter has been focused on because of the huge demand for diversification of power supply network including battery. … However, power efficiency at light load is the intrinsic problem of a bi-directional DAB DC-DC converter. … This method can reduce a switching surge without other circuits such as snubber and improve power efficiency at light load. …

    Power Electronics and Applications (EPE), 2013 15th European Conference on, 1-10, 2013

    IR 

  • Switching surge reduction of a bi-directional dual active bridge DC-DC converter with a digital operation

    Takasaki Mika , Ishizuka Yoichi , Ninomiya Tamotsu , Furukawa Yutaka , Hirose Toshiro

    … Recently, the bi-directional dc-dc converter has been focused on because of the huge demand for diversification of power supply network including battery. … However, power efficiency at light load is the intrinsic problem of a bi-directional DAB DC-DC converter. … This method can reduce a switching surge without other circuits such as snubber and improve power efficiency at light load. …

    Power Electronics and Applications (EPE), 2013 15th European Conference on, 1-10, 2013

    IR 

  • A power efficiency improvement technique for a bi-directional dual active bridge DC-DC converter at light load

    Takasaki Mika , Ishizuka Yoichi , Ninomiya Tamotsu , Furukawa Yutaka , Hirose Toshiro

    … Recently, the bi-directional dc-dc converter has been focused on because of the huge demand for diversification of power supply network including battery. … However, power efficiency at light load is the intrinsic problem of a bi-directional DAB DC-DC converter. … This method can reduce a switching surge without other circuits such as snubber and improve power efficiency at light load. …

    Energy Conversion Congress and Exposition (ECCE), 2013 IEEE, 1414-1421, 2013

    IR 

  • DC-Biased Properties of Powder Cores using a Nonmagnetic Grain Boundary Model  [in Japanese]

    HANDA Susumu , OSHIMA Yasuo , AKAIWA Kouta

    … The calculated values were in good agreement with measured values, which had intrinsic permeability: 3000, aspect ratio: 1.0 and geometric mean gap width: 0.41 μm. …

    Journal of the Japan Society of Powder and Powder Metallurgy 57(9), 593-600, 2010-09-15

    J-STAGE  References (8) Cited by (2)

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