A modified differential evolution algorithm (MDE) for pattern synthesis of antenna arrays is proposed in this paper. By employing the novel strategies of best of random mutation and randomized local search, the convergence of standard differential evolution algorithm (SDE) is significantly accelerated. Five standard benchmark functions are optimized to testify the proposed algorithm by comparis...

An efficient method based on the hybrid model with breeding and subpopulations, between genetic algorithm and a modified particle swarm optimizer for the linear antenna arrays pattern synthesis with prescribed nulls in the interference direction and multi-lobe beam forming by the complex weights of each array element is presented. In general, the pattern synthesis technique that generates a des...

The synthesis of histones and nonhistone nuclear proteins was studied during the naturally synchronous cell cycle of Physarum polycephalum. Contrary to the commonly accepted idea of a tight coupling of histone biosynthesis and DNA replication during the somatic cell cycle we found that 40% of total histone synthesis takes place in the G2 period in the complete absence of DNA synthesis. The core...

The advent of large scale neural computational platforms has highlighted the lack of algorithms for synthesis of neural structures to perform predefined cognitive tasks. The Neural Engineering Framework (NEF) offers one such synthesis, but it is most effective for a spike rate representation of neural information, and it requires a large number of neurons to implement simple functions. We descr...

ABSTRACT Intrathecal immunoglobulin synthesis is part of the immune response in the central nervous system (CNS). In this study we demonstrate that age, the features of the biological agent, and epidemiological factors modulate the pattern of intrathecal immunoglobulin (Ig) synthesis. We also describe the pattern of intrathecal Ig in patients suffering from bacteria, virus, or parasites induced...

In this paper, we demonstrate how a network of dendrites can be used to build the state decoding block of a wordspotter similar to a Hidden Markov Model (HMM) classifier structure. We present simulation and experimental data for a single line dendrite and also experimental results for a dendrite-based classifier structure. This work builds on previously demonstrated building blocks of a neural ...

The speech signal conveys information on different time scales from short (20–40 ms) time scale or segmental, associated to phonological and phonetic information to long (150–250 ms) time scale or supra segmental, associated to syllabic and prosodic information. Linguistic and neurocognitive studies recognize the phonological classes at segmental level as the essential and invariant representat...

Introduction The session under focus deals with phonetic articulatory-acoustic variation and with the link between phonetic detail and phonological modelling. The underlying question was to estimate the impact of phonetic detail on the phonological status of a given unit, and to attempt to better understand how details are produced by the speaker or exploited by the listener to access (encode o...

we report the growth by ion exchange synthesis of zns nanoparticles in mcm-41 matrices using zn (ch3coo)2 and na2s starting sources. the final product (zns/mcm-41) was characterized by x-ray diffraction (xrd) pattern, transmission electron microscopy (tem), scanning electron microscopy (sem), infrared spectrometry (ir) and uv-vis spectroscopy. its crystalline structure and morphology was studie...

This paper presents a portable system and method for recognizing the 26 hand shapes of the American Sign Language alphabet, using a novel glove-like device. Two additional signs, 'space', and 'enter' are added to the alphabet to allow the user to form words or phrases and send them to a speech synthesizer. Since the hand shape for a letter varies from one signer to another, this is a 28class pa...