Low power hub motors are widely used in electromechanical systems such as electrical bicycles and solar vehicles due to their robustness and compact structure. Such systems driven by hub motors (in wheel motors) encounter previously defined and undefined faults under operation. It may inevitably lead to the interruption of the electromechanical system operation; hence, economic losses take plac...

There is a need for energy storage to improve the efficiency and effectiveness of energy distribution with the increasing penetration of renewable energy sources. Among the various energy storage technologies being developed, ‘power-to-gas’ is one such concept which has gained interest due to its ability to provide long term energy storage and recover the energy stored through different energy ...

In this paper we report on the LIMSI 1999 Hub-4E system for broadcast news transcription. The main difference from our previous broadcast news transcription system is that a new decoder was implemented to meet the 10xRT requirement. This single pass 4-gram dynamic network decoder is based on a time-synchronous Viterbi search with dynamic expansion of LM-state conditioned lexical trees, and with...

In this paper we report on our Nov98 Hub-4E system, which is an extension of our Nov97 system[4]. The LIMSI system for the November 1998 Hub-4E evaluation is a continuous mixture density, tied-state cross-word context-dependent HMM system. The acoustic models were trained on the 1995, 1996 and 1997 official Hub-4E training data containing about 150 hours of transcribed speech material. 65K word...

in this paper, a study and design of energy conservation actions and the obtention of energy efficiency titles, according to the italian ministerial decree 20th july 2004, applied to lighting and electrical systemsin a school district managed by perugia province (italy), is presented.specifically, the analysis regarded the replacement of neon lamps with high efficiency ones, and the power facto...

The development of advanced and intelligent measurement instruments in recent years has increased the intelligence modern energy systems, especially power systems. Besides, with advancement conversion technologies, these systems benefit from multi-carrier resources. Accordingly, this paper presents a model smart city which considers various components, including transportation system (STS), mic...

Multicarrier energy systems create new challenges as well opportunities in future systems. One of these is the interaction among multiple and hubs different markets. By advent local thermal market many countries, hubs' scheduling becomes more prominent. In this article, a approach to offered, called virtual hub (VEH). The proposed concept hub, which named VEH referred an architecture based on b...