state estimation is the foundation of any control and decision making in power networks. the first requirement for a secure network is a precise and safe state estimator in order to make decisions based on accurate knowledge of the network status. this paper introduces a new estimator which is able to detect bad data with few calculations without need for repetitions and estimation residual cal...

the vibrations produced by trains include two parts which are deterministic and random vibrations. due to variation of dynamic loads and patterns of load-time, the random vibration of moving train is one of the most important issues in the field of railway engineering. one of the important sources in producing the train vibrations is rail roughness and irregularities. in this paper, responses o...

The aim of this work is to study electrically conductive composites from an epoxy matrix loaded with silver nanowires (AgNWs). Dynamic mechanical analysis (DMA) and dynamic dielectric spectroscopy (DDS) were used the molecular mobility its epoxy/AgNWs composites. influence epoxy/amine ratio on macroscopic properties was analyzed. loss modulus highlights two major relaxations, . relaxation due l...

This paper presents and analyzes a new dynamic element matching technique for low-harmonic distortion digitalto-analog conversion. The benefit of this technique over the prior art is a significantly reduced hardware complexity with no reduction in performance. It is particularly appropriate for applications such as direct digital synthesis (DDS) in wireless communications systems, where low har...

Micronutrient malnutrition remains a problem of public health concern in most developing countries, partly due to monotonous, cereal-based diets that lack diversity. The study objective was to assess whether dietary diversity score (DDS) based on a simple count of food groups consumed and DDS using a 10-g minimum intake for each food group (DDS 10g) are good indicators of adequate micronutrient...

1 DDS, MSc, Post-graduation Program in Dentistry, Estácio de Sá University, Rio de Janeiro, Brazil (Oral Medicine, Brazilian Dental Association, Rio de Janeiro, Brazil). 2 DDS, MSc, Stomatology and Oral Surgery, Estácio de Sá University, Rio de Janeiro, Brazil (DDS, MSc, Stomatology and Oral Surgery, Estácio de Sá University, Rio de Janeiro, Brazil). 3 DDS, MSc, Oral Medicine, Brazilian Dental ...