one of the methods to recognize national background and roots, also to maintain historical and cultural nature is to study different dimensions of physical, martial and athletic activities in ancient iran. the aim of the present study was to identify different sport fields and equipment in ancient iran using content analysis of nine versions of ferdowsi’s “shahnameh” and related literature. als...

Saturation Recovery The simplest sequence is known as Saturation Recovery in which there is a single 90? pulse and a long repetition time between pulses. If the signal is measured immediately following the pulse the image will depend on the proton density. If the sequence is repeated rapidly (short repetition time, TR) there will be only partial relaxation and the results will depend on proton ...

We investigate a time-domain implementation of generalized phase-conjugated twin waves which we call conjugate data repetition. A theory based on time-domain perturbation analysis explaining the mitigation of nonlinear effects is provided, and the concept is evaluated using numerical simulations. Compared to PM-QPSK at the same channel bit rate, the single-channel transmission reach in a conven...

The present study compares prosodic features of child-directed speech (CDS) and foreigner-directed speech (FDS), to examine whether FDS is a derivative of CDS as suggested in sociolinguistic studies. Twelve female speakers completed a simple referential communication task addressed to an imaginary adult, an imaginary foreigner, and an imaginary child. The results showed that, compared to the ad...

In this study, segmental and prosodic aspects of word repetition and non-word repetition in typically developing children aged four to six years were investigated. Focus was on developmental differences, and on how tonal word accent and word length affect segment production accuracy. Prosodically controlled words and non-words were repeated by 44 Swedish-speaking children. Repetition accuracy f...

Words are longer when they are mentioned for the first time within a discourse and shorter in subsequent mentions. This Repetition Effect is usually attributed to the fact that, with repetition, the word becomes more accessible to either the speaker or the listener. In the present paper, we argue that the Repetition Effect is better seen as lengthening of words that are mentioned for the first ...

A simple, economic and successful design for distance and cable length detection is presented. The measurement system is based on the continuous repetition of a pulse that endlessly travels along the distance to be detected. There is a pulse repeater at both ends of the distance or cable to be measured. The endless repetition of the pulse generates a frequency that varies almost inversely with ...