Laser milling provides a new method of producing components for the micro tool manufacturing industry. This paper considers the technical capabilities of laser milling when applied to the machining of components for micro tooling. Characteristics important for laser milling as a micro tooling manufacturing process are reviewed. These characteristics are surface finish, aspect ratio, dimensional...

abstractthis study examined the effect of two types of feedback, post-text as a written feedback and recast as an oral one on written grammatical accuracy of iranian intermediate efl learners. to this end, 45 intermediate students who were studying at ideal language institute in sari were selected based on their performance on the nelson proficiency test, and then divided into three groups (two...

based on the controversial beliefs among l2 teachers about effective corrective feedback (cf) strategies, recast and prompts as 2 kinds of cf have drawn the attention of l2 researchers(e.g., braidi, 2002; iwashita, 2003; loewen & philp, 2006; panova & lyster, 2002; sheen, 2004). despite these numbers of studies, debate continues to exist about their usefulness as a cf technique. whereas...

In this paper, the crack phenomenon of different materials was studied according to surface morphology recasting layer micro EDM workpiece. high-speed steel and titanium alloy are used as workpiece materials, RC pulse power supply is for electric discharge machining. The profile recast examined by scanning electron microscopy. difference between two in spark machining analyzed. Finally, some im...

This study investigates the effect of four types of oral corrective feedback, namely, explicit elicitation, implicit elicitation, explicit recast and implicit recast on the most commonly mispronounced phonological features among Iranian EFL learners through immediate uptake and retention. Five classes were randomly categorized into four experimental groups and one control group, each with 18 in...

This research explores the effects of three computer-mediated feedback modalities, that is, elicitation, recast, and meta-linguistics, on the learning of English participial, gerund, and infinitival phrases among Iranian intermediate-level EFL learners. The overriding focus of the present study was to investigate whether different types of feedback given through form-focused computer-human exch...