Search Results - "Muroyama, S."
-
1
Characteristics of a highly efficient propeller type small wind turbine with a diffuser
Published in Renewable energy (01-07-2006)“…We studied the improved effects a diffuser had on the output power of small wind turbine systems, aiming to introduce these systems to radio relay stations as…”
Get full text
Journal Article -
2
Hybrid power-supply system composed of photovoltaic and fuel-cell systems
Published in IEE conference publication (2001)“…This paper describes a hybrid power-supply system that combines a photovoltaic system with a fuel-cell system for use as an auxiliary generator for long-term…”
Get full text
Conference Proceeding
-
3
Photovoltaic system in telecommunications building using AC modules
Published in Conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists Conference - 2000 (Cat. No.00CH37036) (2000)“…From the view point of conserving the environment, NTT group is promoting the introduction of photovoltaic (PV) systems. The PV systems introduced in a…”
Get full text
Conference Proceeding -
4
A compact, high-efficiency and high-power-factor rectifier for telecommunications systems
Published in Proceedings of Applied Power Electronics Conference. APEC '96 (1996)“…We have developed a rectifier which consists of a boost-chopper with zero-voltage switching and a full-bridge zero-voltage switching converter using…”
Get full text
Conference Proceeding -
5
The state of the art in Japan's telecommunications energy systems-Strategy for Total Power Management
Published in TELESCON 2000. Third International Telecommunications Energy Special Conference (IEEE Cat. No.00EX424) (2000)“…The "Strategy for Total Power Management (STPM)" was developed for managing problems in relation to energy for multimedia services in a comprehensive manner…”
Get full text
Conference Proceeding -
6
Concentrating solar module with horizontal reflectors
Published in Solar energy materials and solar cells (01-02-2003)“…A non-sun-tracking concentrating solar module is described that is designed to achieve photovoltaic (PV) systems with higher generation power density. The…”
Get full text
Journal Article Conference Proceeding -
7
Stand-alone hybrid power supply system composed of wind turbines and photovoltaic modules for powering radio relay stations
Published in The 25th International Telecommunications Energy Conference, 2003. INTELEC '03 (2003)“…In this paper, we describe a simulation method and the fundamental construction of a stand-alone hybrid power supply system composed of wind turbines and…”
Get full text
Conference Proceeding -
8
A new UPS for digital telecommunications systems
Published in Proceedings of Intelec 93: 15th International Telecommunications Energy Conference (1993)“…Digital telecommunications systems are being deployed rapidly in Japan to provide various telecommunications services including basic ISDN. To control and…”
Get full text
Conference Proceeding -
9
UPS with an electric-energy storage function using VRLA batteries
Published in The 25th International Telecommunications Energy Conference, 2003. INTELEC '03 (2003)“…A UPS with an energy storage function using long-cycle-life VRLA batteries has been developed. Combining the functions of UPS and energy storage is effective…”
Get full text
Conference Proceeding -
10
Characteristics of a highly efficient propeller type wind turbine with a diffuser for stand-alone power supply systems
Published in The 25th International Telecommunications Energy Conference, 2003. INTELEC '03 (2003)“…This paper describes the results on a highly efficient horizontal-axis wind turbine with a diffuser, which turbine has higher output power than that of a…”
Get full text
Conference Proceeding -
11
N-Glycosylation of 2,3-dideoxyfuranose derivatives having a (diethoxyphosphorothioyl)difluoromethyl group at the 3α-position
Published in Tetrahedron (10-11-2003)“…Lewis acid-mediated N-glycosylation of 2,3-dideoxyribofunanosides having a (diethoxyphosphorothioyl)difluoromethyl group at the 3α-position with silylated…”
Get full text
Journal Article -
12
Study on Field Demonstration of Multiple Power Quality Levels System in Sendai
Published in INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference (01-09-2006)“…Presented are reports on the development of a multiple power quality level supply system that provides five kinds of high quality electric power at the same…”
Get full text
Conference Proceeding -
13
Fundamental characteristics of stationary lithium-ion secondary cells and a cell-voltage-management system
Published in INTELEC 2004. 26th Annual International Telecommunications Energy Conference (2004)“…This paper describes the results of several performance tests evaluating lithium-ion cells developed for stationary use, such as stand-by sources in power…”
Get full text
Conference Proceeding -
14
A new power supply for fiber optic subscriber systems in transportable containers
Published in [Proceedings] Fourteenth International Telecommunications Energy Conference - INTELEC '92 (1992)“…Central terminal remote/terminal (CT/RT) fiber optic subscriber systems have been introduced to provide ISDN basic service. RT systems are installed in…”
Get full text
Conference Proceeding -
15
Power supplies for fiber optic subscriber systems
Published in [Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 (1991)“…Power supplies for remote terminal (RT) fiber optic subscriber systems have been developed at NTT. The authors describe the requirements for RT power supplies…”
Get full text
Conference Proceeding -
16
Isolated three-phase AC-to-DC bidirectional converter with a small number of switches
Published in Proceedings of Power Conversion Conference - PCC '97 (1997)“…A bidirectional converter that converts three-phase AC to DC or vice versa by using a high-frequency transformer has been investigated. The main feature of the…”
Get full text
Conference Proceeding -
17
Highly efficient cogeneration systems for telecommunications and data communications centers
Published in INTELEC. Twenty-Second International Telecommunications Energy Conference (Cat. No.00CH37131) (2000)“…Cogeneration systems (CGSs) provide electric power and heat simultaneously. They are being actively developed and installed as environment-friendly energy…”
Get full text
Conference Proceeding -
18
A new backup power supply with a battery deterioration test circuit
Published in Proceedings of INTELEC 95. 17th International Telecommunications Energy Conference (1995)“…This paper presents presents a new backup power supply with a battery deterioration test circuit. The power supply is for solid state file equipment used in…”
Get full text
Conference Proceeding -
19
A zero-voltage-switching controlled high-power-factor converter for DC uninterruptible power supply
Published in PESC Record. 27th Annual IEEE Power Electronics Specialists Conference (1996)“…A new zero-voltage-switching controlled high-power-factor power converter suitable for a DC uninterruptible power supply is proposed. A control method for…”
Get full text
Conference Proceeding -
20
1 kW portable fuel cell system based on PEFCs
Published in TELESCON 2000. Third International Telecommunications Energy Special Conference (IEEE Cat. No.00EX424) (2000)“…We have developed a 1 kW portable fuel cell system that is powered by polymer electrolyte fuel cells (PEFCs). It consists of a cabinet that contains a fuel…”
Get full text
Conference Proceeding