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An Energy Efficient Power Converter for Zero Power Wearable Devices

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Less impact of power failures due to substation automation

Otto Preiss

The management of power failures is a complex endeavour, which needs a diverse set of preventive and corrective measures in order to attain satisfying results. Substation Automations (SA) systems comprise, among others, an infrastructure of intelligent ele ...

1999

The scanning flow DMA

Athanasios Nenes

A new method of DMA operation has been implemented in which the flow rates are continuously changed in conjunction with the applied voltage. By optimizing the flow and voltage ramps, improvements can be made in the DMA's measurable size range, counting sta ...

Elsevier Ltd1999

Bipolar Al/O2 battery with planar electrodes in alkaline and acidic electrolytes

Christos Comninellis

A filter-press-type Al/O2 battery with bipolar assembly of the electrodes was developed. The current-voltage curves and power output of monopolar and of bipolar batteries contg. one to four cells were measured in alk. (4M NaOH and 7.5M KOH) and acidic (3M ...

1995

Sorptivity calculation for arbitrary diffusivity

David Andrew Barry, Marc Parlange

An estimate of the sorptivity that requires only the knowledge of simple integrals of the soil-water diffusivity weighted by a power of the water content is present. The result is checked systematically for diffusivity functions with very different behavio ...

1994

Expert system for voltage & VAr control

This paper proposes an expert system approach for voltage and VAr control. A decentralized control mode is used so that each area performs its proper control using only its local information. It is obvious that the proposed approach does not suffer from th ...

1992

NETWORK TOPOLOGY OPTIMIZATION FOR POWER SYSTEM SECURITY ENHANCEMENT.

Up to now, preventive or corrective actions to improve power systems' operating states mainly concern power generation rescheduling, load-shedding and tap modifications of in-phase or phase-angle transformers. A method is proposed for relieving overloads b ...

1983

IDENTIFICATION DE MODELES DE CHARGES EN FONCTION DE LA TENSION ET DE LA FREQUENCE.

Until now, load modelling has encountered the following problems: on the one hand, the modelling method based on aggregating analytically the individual loads up to the bulk power level suffers from the uncertain composition obtained by statistics; on the ...

1983

Dynamic Aggregation of Generating Unit Models

A new technique is described for the automatic formation of dynamic equivalents of generating units represented by detailed models. The method applies to groups of generating units that are coherent. A coherent group of generating units, for a given pertur ...

1978

A Flexible Front-End for Wearable Electrochemical Sensing

Giovanni De Micheli, Sandro Carrara, Francesca Stradolini, Danilo Demarchi, Francesca Criscuolo, Tugba Kilic, Abuduwaili Tuoheti, Lucia Lobello

This work presents the design and the realization of a flexible front-end circuitry for electrochemical sensing with wearable devices. The hardware combines readout circuitry for amperometric and Open Circuit Potential (OCP) measurements. The sensing platf ...

IEEE0