Mormyrid fishes communicate using pulses of electricity, conveying information about their identity, behavioral state, and location. They have long been used as neuroethological model systems because they are uniquely suited to identifying cellular mechanisms for behavior. They are also remarkably diverse, and they have recently emerged as a model system for studying how communication systems m...

Although the MapReduce programming model has so far been highly successful, not all applications are well suited to this model. Spark bridges this gap by providing seamless support for iterative and interactive jobs that are hard to express using the acyclic data flow model pioneered by MapReduce. While benchmarking Spark, we identified that the default broadcast mechanism implemented in the Sp...

The currently high price of gold wire has led to the development of bonding wire made from palladium-coated-copper as a lower cost alternative. Increasing the uniformity of the Pd distribution in free-air balls, formed by melting the wire end with an electric spark, is of interest as it can influence the uniformity of process and reliability. To study this Pd distribution, free-air balls are ma...

The data cleaning of electrical power big data can improve the correctness, the completeness, the consistency and the reliability of the data. Aiming at the difficulties of the extracting of the unified anomaly detection pattern and the low accuracy and continuity of the anomaly data correction in the process of the electrical power big data cleaning, the data cleaning model of the electrical p...

fundamental motor skills are the bases of special motor skills. in addition tomaturation, environmental promotion can influence these skills. the aim of thisstudy was to investigate and compare the effect of developmental gymnasticinstructional program and spark motor program as motor experiences onfundamental motor skills development in children aged between 6 and 8. for thispurpose, 120 child...

Dielectric: materials commonly used as insulators in spark gaps (Lexan, Nylon, Lucite, Macor, Boron Nitride, Delrin and G-10) have been exposed to the by-products of arcs in three different spark gap experiments. The first was a 60 kV, 0.05 Caul/shot spark gap using copper-tungsten or graphite electrodes at various pressures of N2 or SF6 gas. The second was a 5-30 kV, 4-25 kA, .l-.6 Coul/shot, ...

Abstract. To predict discharge current waveforms for air discharges of electrostatic discharge (ESD) generators (ESD-guns) used in an IEC immunity test against human ESD, an equivalent circuit modelling for air discharges of ESD-guns is proposed. To simulate spark discharges, two typical spark resistance formulae (Rompe-Weizel’s and Toepler’s) are applied to the modelling, which consists of a s...

Solid State Nuclear Track Detectors (SSNTD) are commonly used for long term measurements of radon, thoron and progeny concentrations. In the present study, we compared the optical counting method and the spark counting technique for counting the alpha tracks on LR 115 track detector films. The paper discusses the various parameters that are innate in the process. More than 300 films were counte...

Big Data sets can contain all types of information: from server log files to tracking information of mobile users with their location at a point in time. Apache Spark has been widely accepted for Big Data analytics because of its very fast processing model. However, Spark has no native support for spatial or spatio-temporal data. Spatial filters or joins using, e.g., a contains predicate are no...