Estimation of an electric motor in Cryocooler as an electrical machinery is attemped. It isn't possible to estimate for the performance of the cryocooler directly in the present. Refrigerator is operated as Mini-P.S.A. The performance of the refrigerator is measured as a liquefication speed. The speed of the cold head was changed to compare the performance.

A student warms the student ID which is an IC card over a terminal for a lecture room. This is an attendance management system. But, a seminar office also has the classroom where an attendance terminal isn't installed. So development in the end where you can read a student ID and forward data to foreign server has been begun. I connected RC-S380 to Raspberry PI and succeeded in the reading of the IC card using nfcpy.

There is no technical development of the element by which it's for a breaker in a technology trend of our country from 2005 to 2013. Compatibility as a system and the standard are a focus. Information about a semiconductor circuit breaker (SCB) and a hybrid circuit breaker (HCB) wasn't obtained. It is supposed that the technical information about SCB and HCB is collected before 2005. A further retrospective investigation is required for to know a circuit system. It was obtained classification of a circuit system by a review thesis in 2013 about an overseas technology trend. The method to grasp a technology trend was indicated by a retrospective investigation and a patent.

Y: Ishii: ``Servqy on Hybrid Circuit Breqker --Abstraction of a Circuit System Example--'', Bachelor Thesis, Memsei University (2015.1.16) (in Japanese)

Prof. Mineo Ito et.al. successed to lit LED 5 minuites with super-capacitor which charged from Aloe plant. The standby power of the common house is 6% which amount was 285 kWh per year per house. When serving the part of the standby power requirement of each home by the electric power which was obtained from the plant for example an aloe, it's expected to lead to energy saving by an electric power system.

LEGO Mindstorms RCX is a block equipped with H8. Even a student experiment is used. An IR tower is used for communication with a block. This device driver is offered to only something for 32bit OS. It can't be used by 64bit OS, so development of a device driver newly is aimed.
F. Amano: ``SPreliminary Investigation for Device Sriver'', Bachelor Thesis, Memsei University (2013.1)
M. Koori: ``Development Environment of Lego Mindstorms --in case of NQC--'', Bachelor Thesis, Memsei University (2007.1)
M. Watanabe: ``Development Environment of Lego Mindstorms --in case of Visual Basic--'', Bachelor Thesis, Memsei University (2007.1)
H. Kusanagi: ``Development Environment of Lego Mindstorms --in case of Java--'', Bachelor Thesis, Memsei University (2007.1)
Y. Tsuboi: ``Development Environment of Lego Mindstorms --in case of Lisp--'', Bachelor Thesis, Memsei University (2007.1)

There is epoxy in one of cryogenic constructional material. Heat transfer characteristics improvement of epoxy is important. Improvement of electrical conduction property and mechanical characteristics of the epoxy for which the special quality of the carbon nano fiber (CNF) was used is reported. So a carbon nano fiber was added to epoxy as a filler. The rate of conduction of heat which can be put under the cryogenic temperature environment was considered.
T. Harano: ``Consideration about indurating of the epoxy to which a carbon nano fiber was added'', Bachelor Thesis, Memsei University (2014.1)
H. Hashimoto: ``Consideration about CNF addition to epoxy resin for low temperature'’, Bachelor Thesis, Memsei University (2013.1)
Y. Takahashi: ``Consideration about a carbon nano fiber addition way to epoxy resin'', Bachelor Thesis, Memsei University (2009.1)
T. Nakamura, T. Hoshino: ``Evaluation of thermal characteristics of epoxy resin addded in carbon nano-fiber at cryogenic environment'', 2005 National Convention Record IEE Japan, Vol. 5, No. 5-011, pp. 12 (2005.3) (in Japanese)

It's a meaningful thing to experience a student experiment hand about beginning of discharge phenomenon. The experimental item using the Geisler tube is confirmation of Paschen's rule in the color of the cold-cathode discharge and spark discharge of state observation and a spherical gap.
Takayuki Honma: ``Consideration of vacuum discharge equipment for student experiments'', Bachelor Thesis, Memsei University (2012.1) (in Japanesse)
Takumi Shioiri: ``Consideration about vacuum leakage of discharge laboratory equipment'', Bachelor Thesis, Memsei University (2010.1) (in Japanesse)
Takuya Yoshikawa ``Making of discharge laboratory equipment'', Bachelor Thesis, Memsei University (2008.1) (in Japanesse)

A chassis dynamo and an electric car were introduced by a senior teacher in 2002. It was investigated about a secondary cell suitable for an electric car. The thing with which the charge-discharge behavior is gauged and a test method of a secondary cell were also considered.
Yuhei Kasai: ``Aid of drivers of an chassis dynamo.'', Bachelor Thesis, Memsei University (2012.1)
Ryusuke Totsuka: ``Exhibition test drive of an electric car and attitude survey'', Bachelor Thesis, Memsei University (2010.1)
Masashi Itakura: ``Consideration about the value of the secondary cell suitable for an electric car --Characteristic evaluation of a lead storage battery and JC08 Correlation with the target value--'', Bachelor Thesis, Memsei University (2009.1)
Yuichi Yamashita: ``Consideration about the value of the secondary cell suitable for an electric car --Characteristic evaluation of a lead storage battery and box type lithium battery holder--'', Bachelor Thesis, Memsei University (2009.1)
Yoshito Uchida: ``Consideration about the value of the secondary cell suitable for an electric car --Characteristic evaluation of a lead storage battery and AA battery holder--'', Bachelor Thesis, Memsei University (2009.1)
Akito Kitajima: ``Battery charging and discharging pattern of the capacitor for electric cars --In case of DC series motor and a chopper--'', Bachelor Thesis, Memsei University (2007.1)
Hiroki Saito: ``Characteristic evaluation of a capacitor for electric cars --Lithium Ion Battery--'', Bachelor Thesis, Memsei University (2007.1)
Shin Takeuchi: ``Characteristic evaluation of a capacitor for electric cars --Lead Battery--'', Bachelor Thesis, Memsei University (2007.1)
Taro Tokoi: ``Characteristic evaluation of a capacitor for electric cars --Electric Double Layer Capacitor--'', Bachelor Thesis, Memsei University (2007.1)
Yasuki Nakazawa: ``Characteristic evaluation of a capacitor for electric cars --Nickel Cadmium Battery--'', Bachelor Thesis, Memsei University (2007.1)
Takayoshi Hino: ``Characteristic evaluation of a capacitor for electric cars --Nickel Hydrogen Battery--'', Bachelor Thesis, Memsei University (2007.1)

Current lead for low temperature laboratory equipment was designed.
Tsukasa Suzuki: ``Design of Current Lead for Low Temperature Measuring Equipment'', Bachelor Thesis, Meisei University (2008.1)
Tsutomu Hoshino: ``Power Lead'', Handbook of Superconductivity and Cryogenics, Chapter 4, section 4.6.2, pp. 627 -- 630 (1993.11) ISBN 4-2740-2255-2 Ohm (in Japanese)
Tsutomu Hoshino, Naotake Natori, Noboru Higuchi: ``Thermal Calculation of AC Power Lead (part 2)'', Abstract of CSJ Conference, Vol. 37, No. B3-8, pp. 137 (1987.5) (in Japanese)
Tsutomu Hoshino: ``Thermal Calculation of AC Power Lead'', Abstract of CSJ Conference, Vol. 35, No. B2-3, pp. 83 (1986.5) (in Japanese)
Tsutomu Hoshino: ``Study on Thermal Property Value Equation of Copper'', Abstract of CSJ Conference, Vol. 34, No. A1-2, pp. 2 (1985.11) (in Japanese)

A three-dimensional planetarium was introduced aiming at building of a stereoscopic views projection system.
Shogo Kan'no: ``Construction of a stereo vision projection system --Three-dimensional planetarium--'', Bachelor Thesis, Memsei University (2008.1)
Yu Itonaga: ``Three-dimensional planetarium project'', Bachelor Thesis, Memsei University (2007.1)

Purpose
The cable core is a coaxial configuration for single phase. Three cable core are bounted to consist the power transmission cable. It has been considered with a cylindrical sheet current what kind of force occur where the magnetic flux leaks from a shield of a cable core. The power which operates on a cable by electromagnetic field analysis is considered about the composition on which tape conductor is wound with a gap.
A DC Superconducting Power Transmission Cable System is developed. Therefore the structure designs and leak magnetic fields, etc. are considered.
Current Status
Success to feed 5.5 kA curren to 10 m class Nb₃Sn single layer coaxial cable. (1984)
Establishment of fabrication to reduce ac loss to 1/10. (1987)
AC loss analysis caused by pitch distribution. (1999)
Evaluation of leakage flux from oxide superconducting coaxial cable. (2000)
Electro-magnetic analysis of two core coaxial cable. (2001)
Superconducting multi-layer was analyzed about the shield characteristics. (2004)
Papers
Taketsune Nakamura, H. Kanzaki, T. Tsuboi, Kohei Higashikawa, Tsutomu Hoshino, Itsuya Muta: ``Analysis of Shielding Property in Bi-2223/Ag Multifilamentary Tapes with Multi-Layer Arrangement'', Journal of Materials Processing Technology, Vol. 161, No. 1-2, pp 22 -- 27, 10 April 2005. doi:10.1016/j.jmatprotec.2004.07.004
T. Hoshino, N. Yamaji, I. Muta, T. Nakamura, N. Higuchi, N. Natori, S. Fuchino, K. Arai, ``Measured-loss Analysis of Superconducting Power Transmission Cable'', IEEE Transactions on Applied Superconductivity, Vol. 10, No. 1, pp. 1223 -- 1226 (2000.3)
T. Hoshino, M. Shibayama, S. Itoh, I. Muta, N. Higuchi, N. Natori, S. Fuchino, K. Arai: ``Conductor Pitch Effect on an Eddy current Loss of the Superconducting Power Cable Using the Disassembled Cable ``N'' Data'', IEEE Transactions on Applied Superconductivity, Vol. 9, No. 2, pp. 1277 -- 1280 (1999.6)
T. Hoshino, N. Shibayama, S. Itoh, I. Muta, N. Higuchi, N. Natori, S. Fuchino, K. Arai: ``Conductor Pitch Effect on an Eddy Current Loss of the Superconducting Power Cable using the Disassembled Cable ``M'' Data'', Proceedings of the Seventeenth International Cryogenic Engineering Conference, pp. 375 -- 378 (1998.7)
T. Hoshino, I. Muta, N. Higuchi, N. Natori: ``AC Loss Measurement of Bi System Multilayer Tape Superconductor for Power Transmission Cable'', Proceedings of Fifteenth International Conference on Magnetic Technology, Part. 2, pp. 1136 -- 1139 (1997.10)
T. Hoshino, I. Ishii, N. Higuchi, S. Fuchino: ``1 to 3 GVA Class Superconducting Power Transmission Cables with Nb₃Sn or Oxide Superconductor'', Electrical Engineering in Japan, Vol. 108, No. 6, pp. 75 -- 85 (1989.12)
K. Arai, N. Natori, N. Higuchi, T. Hoshino: ``AC Loss Characteristics of Superconducting Power Transmission Cable'', 11th International Conference on Magnet Technology, Vol.1, pp. 485 -- 490, Elsevier Applied Science (1989.8)

N. Higuchi, N. Natori, K. Arai, T. Hoshino: ``Nb<sub>3</sub>Sn Superconducting Power Transmission Cable'', Progress in High Temperature Superconductivity, Vol. 15, pp. 668 -- 673 (1988.10)
T. Hoshino, I. Ishii, N. Higuchi, S. Fuchino: ``1 to 3 GVA Class Superconducting Power Transmission Cables with Nb$_3$Sn or Oxide Superconductor'', The Transactions of the Institute of Electrical Engineers of Japan, Vol. 108-B, No. 9, pp. 431 -- 438 (1988.9) (in Japanese)

Consideration about resonant frequency displaced detection of a circuit with magnetic coupling.
Akira Hirota: ``Consideration about resonant frequency displaced detection of a circuit with magnetic coupling'', Bachelor Thesis, Memsei University (2007.1)
Tsukumo Koido: ``Resonant Circuit with Magnetic Coupling'', Bachelor Thesis, Memsei University (2006.1)

Purpose
Persistent current compensation of high Tc magnet using static type flux pump.
Development of high voltage flux pump for the excitator of fully superconducting generator.
When driving a high Tc superconducting magnet by a persistent current mode, essential current decay occurs. The power supply compensating constant current is required. Utilization of static type flux pump is proposed to this power supply. This system is fabricated, an experiment is made and a possibility of the practical use is considered.
Current Status
Rotating drum type flux pump was fabricated. It was used to exiter of fully superconducting generator.
Mving type flux pump using reluctance rotor was fabricdated. Its performance was obtained.
Fabulicating multi series flux pump. Using single disc, 60 mV output voltage at 100 rpm was obtaind in the experiment on 12th October 1995.
Papers
YoonDo Chung, Itsuya Muta, Tsutomu Hoshino, Taketsune Nakamura, M.H. Sohn: ``Design and performance of compensator for decremental persistent current in HTS magnets using linear type magnetic flux pump'', Cryogenics, Vol. 44, pp. 839 -- 844, (2004.11) doi:10.1016/j.cryogenics.2004.06.001
YoonDo Chung, Itsuya Muta, Tsutomu Hoshino, Taketsune Nakamura: ``Performances of a Linear Type Magnetic Flux Pump for Compensating a Little Decremented Persistent Current of HTS Magnets'', IEEE Transactions on Applied Superconductivity, Vol. 14, No. 2, pp. 1723 -- 1726 (2004.6)
Yoondo Chung, Itsuya Muta, Tsutomu Hoshino, Taketsune Nakamura, Taekuk Ko: ``Pumping-up Current Characteristics of Linear Type magnetic Flux Pump'', Journal of the Korea Institute of Applied Superconductivity and Cryogenics, Vol. 6, No. 2, pp. 29 -- 34 (2004.5)
Hiroshi Tsukiji, Tsutomu Hoshino, Itsuya Muta: ``Output Power Limit of 200 MW Class Brushless Superconducting Generator Excited with Magnetic Flux-Pump'', IEEE Transactions on Applied Superconductivity, Vol. 11, No. 1, pp. 2335 -- 2338 (2001.3)
H. Tsukiji, I. Muta, T. Hoshino, E. Mukai: ``Characteristics of Exciting Power Lead-less Superconducting Magnet by Multi Magnetic Flux Pump'', Transactions of the Institute of Electrical Engineers of Japan, Vol. 119-D, No. 12, pp. 1515 -- 1522 (1999.12) (in Japanese)
H. Tsukiji, I. Muta, T. Hoshino, E. Mukai: ``Output Power Limit and Excitation Method Effect Comparison in Trial Fully Superconducting Generator'', Transactions of the Institute of Electrical Engineers of Japan, Vol. 119-D, No. 12, pp. 1471 -- 1476 (1999.12) (in Japanese)
Hiroshi Tsukiji, Yoshio Noguchi, Eiichi Mukai, Tsutomu Hoshino, Itsuya Muta: ``Conceptual design of flux pump for 200 MW fully superconducting generator'', Abstract of CSJ Conference 59, No. C1-16, pp. 58 (1998.10) (in Japanese)
Hiroshi Tsukiji, Yoshio Noguchi, Eiichi Mukai, Tsutomu Hoshino, Itsuya Muta: ``Output limit of trial brushless fully superconducting generator'', Abstract of CSJ Conference 59, No. C1-17, pp. 59 (1998.10) (in Japanese)
H. Tsukiji, Y. Noguchi, T. Hoshino, I. Muta: ``Effect of the Excitation System on the Electrical Characteristics of a Fully Superconducting AC Generator'', Proceedings of Fifteenth International Conference on Magnetic Technology, Part. 1, pp. 736 -- 739 (1997.10)
H. Tsukiji, T. Hoshino, I. Muta, E. Mukai: ``Electrical characteristics of a fully superconducting brushless generator equipped with a magnetic flux pump'', Electrical Engineering in Japan, Vol. 120, No. 3, pp. 64 -- 72 (1997.8)
H. Tsukiji, K. D. Choi, M. Tsukiyama, T. Nishiya, T. Hoshino, E. Mukai, I. Muta: ``Test of Disk Type Magnetic Flux Pump with the Ability of High Voltage Output'', IEEE Transactions on Applied Superconductivity. 7, No. 2, pp. 394 -- 397 (1997.6)
Hiroshi Tsukiji, Kyeong-Dal Choi, Masahiro Tsukiyama, Tomonori Nishiya, Tsutomu Hoshino, Itsuya Muta, Eiichi Mukai: ``Test of High-Voltage Output Magnetic Flux Pump for Superconducting Magnet'', Proceedings of the Sixteenth International Cryogenic Engineering Conference/International Cryogenic Materials Conference, part 2, pp. 953 -- 956 (1997.4.1) ISBN 0-0804-2688-3 ed by T. Haruyama, T. Mitsui, K. Yamafuji, Elsevier Science
H. Tsukiji, T. Hoshino, I. Muta, E. Mukai: ``Fabrication and excitation testing of a fully superconducting brushless generator with magnetic flux pump'', Electrical Engineering in Japan, Vol. 118, No. 4, pp. 35 -- 45 (1997.3)
H. Tsukiji, T. Hoshino, I. Muta, E. Mukai: ``Electrical Characteristics of Fully Superconducting Brushless Generator with Magnetic Flux Pump'', The Transactions of The Institute of Electrical Engineers of Japan, Vol. 116-D, No. 11, pp. 1126 -- 1131 (1996.11) (in Japanese)
H. Tukiji, K. D. Choi, M. Tsukiyama, T. Nishiya, T. Hoshino, I. Muta, E. Mukai: ``Test of High-Voltage Output Magnetic Flux Pump for Superconducting Magnet'', Proceedings of the Sixteenth International Cryogenic Engineering Conference, Part 2, pp. 953 -- 956 (1996.5)
H. Tsukiji, I. Muta, T. Hoshino, E. Mukai: ``Fabrication and Excitation Test of Fully Superconducting Brushless Generator with Magnetic Flux Pump'', The Transactions of The Institute of Electrical Engineers of Japan, Vol. 116-D, No. 4, pp. 457 -- 464 (1996.4) (in Japanese)
H. Tsukiji, T. Hoshino, I. Muta: ``Characteristics of Exciting bSuperconducting Magnet by Magnetic Flux Pump'', The Transactions of the Institute of Electrical Engineers of Japan, Vol. 116-D, No. 2, pp. 183 -- 190 (1996.2) (in Japanese)
I. Muta, H. Tsukiji, N. Handa, T. Hoshino, E. Mukai: ``The Effect of Excitation Methods on Electrical Characteristics of Fully Superconducting Generator Model'', IEEE Transactions on Magnetics, Vol. 30, No. 4, pp. 2030 -- 2033 (1994.7)
I. Muta, H. Tsukiji, T. Hoshino, E. Mukai: ``Electrical Characteristics of Fully Superconducting Synchronous Generator in Persistent Excitation Mode'', IEEE Transactions on Magnetics, Vol. 28, No. 1, pp. 434 -- 437 (1992.1)
I. Muta, H. Tsukiji, T. Itoh, S. Ishii, T. Hoshino, E. Mukai: ``Superconducting Dynamo and its Application to Superconducting Generator'',Cryogenics, Vol. 30, No. S, pp. 749 -- 752 (1990.9)
I. Muta, H. Tsukiji, T. Itoh, S. Ishii, T. Hoshino, E. Mukai: ``Experiment of Fully Superconducting Brushless Generator'', International Conference on Electrical Machines, Vol. 2, pp. 616 -- 619 (1990.8)
I. Muta, H. Tsukiji, Y. Tsutsui, T. Hoshino, E. Mukai, T. Furukawa: ``Fully Superconducting AC Generator with Brushless Excitation System'', 11th International Conference on Magnet Technology, Vol. 1, pp. 568 -- 573, Elsevier Applied Science (1989.8)