SAKAI Tsutomu | NTT Facilities
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概要
NTT Facilities | 論文
- A Cooling Vest for Working Comfortably in a moderately Hot Environment
- Rack-Mounted DC Power Supply System Utilizing Li-Ion Batteries for Backup(Energy in Electronics Communications)
- Fundamental Characteristics of Stationary Lithium-Ion Secondary Cells and a Cell-Voltage-Equalizing Circuit(Energy in Electronics Communications)
- UPS with Electric-Energy Storage Function Using VRLA Batteries(Rectifiers, Inverters and UPS)(the 25th International Telecommunications Energy Conference(INTELEC'03))
- Stand-Alone Hybrid Power Supply System Composed of Wind Turbine and Photovoltaic Modules for Powering Radio Relay Stations(Power System Architecture)(the 25th International Telecommunications Energy Conference(INTELEC'03))