The present study investigated the effect of pragmatic eliciting tasks on EFL pre-intermediate learners speaking proficiency. Thus this study aimed at comparing the English language learners who practiced pragmatic eliciting tasks and the ones who used traditional speaking activities such as questions and answers, discussion, etc. In doing so, 40 learners out of 80 were selected through Oxford ...

in this paper, a new method based on branch placement for the optimal positioning of phasor measurement units (pmus) in power systems is proposed. in this method, the pmus are in type of single-channel and are installed at the beginning of the branches. therefore, they are able to measure the bus voltages. also, the installation of the pmus on the branches increases the security of observabilit...

Semiconductor nanorods with charge-accepting molecules adsorbed on their surfaces serve as model systems for solar energy conversion. An electron photoexcited from the valence band of nanorod to a high-energy state in conduction will relax and transfer molecule, producing long-lived charge-separated that facilitates charge extraction thereby enables photochemical reactions. Characterizing dynam...

the present study investigates the effect of e-mail on iranian learners of english and focuses on teaching thewriting skillvia e-mail. more specifically, the study investigates (a) whether using e-mail has any statistically significant effect on improving high school students' writing skill, and (b) whether the proficiency level has any relation with students’ writing improvement through using ...

optimal capacitor placement, considering power system loss reduction, voltage profile improvement, line reactive power decrease and power factor correction, is of particular importance in power system planning and control. the distribution system operator calculates the optimal place, number and capacity of capacitors based on two major purposes: active power loss reduction and return on invest...

: Robotic mitral valve repair (MVR) is an emerging option to treat degenerative disease. Compared open thoracotomy, robotic surgery has been shown afford decreased postoperative length of stay with comparable rates mortality and morbidity. Among the variety techniques for MVR, totally endoscopic approach remains least invasive method date. In this report, we describe our technique robotically-a...

in this paper an application of cellular learning automata (cla) to vlsi placement is presented. the cla, which is introduced for the first time in this paper, is different from standard cellular learning automata in two respects. it has input and the cell neighborhood varies during the operation of cla. the proposed cla based algorithm for vlsi placement is tested on number of placement proble...