convictions are strong that multimedia courseware holds great promise for enhancing learning efficiency among learners. this study thus aimed at comparing the effects of the multimedia programs introducing 100 vocabulary items through pictures and streaming video with those of teacher instruction on increasing efl learners’ vocabulary repertoire. a total of 120 subjects were identified as inter...

The main purpose of this study is to investigate how voice is realized by Iranian EFL learners in persuasive English and Persian text types. This discourse-related notion is a required criterion for writing acceptable English. However, L2 learners from cultures other than English might face problems in realizing it, or even ignore it all through their writing. In this connection, the present st...

The main purpose of this study is to investigate how voice is realized by Iranian EFL learners in persuasive English and Persian text types. This discourse-related notion is a required criterion for writing acceptable English. However, L2 learners from cultures other than English might face problems in realizing it, or even ignore it all through their writing. In this connection, the present st...

he first generation (1G) of mobile systems pioneered commercial mobile voice services, allowing communication on the move for the first time. Initially, the quality was poor, service was expensive , and penetration was low. The quality improved somewhat, and service became more affordable. Penetration increased significantly. However , the analog infrastructure limited the number of supported c...

This paper describes an efficient method for the identification of the melody voice from the frame-wise updated magnitude and frequency values of tone objects. Most state of the art algorithms employ a probabilistic framework to find the best succession of melody tones. Often such methods fail, if there are several musical voices with a comparable strength in the audio mixture. In this paper, w...

the present study explored the intensity level of authorial voice in relation to the quality of argumentative writing. 42 undergraduate learners of english as a foreign language (36 girls and 6 boys) spent 45 minutes to individually complete in-class position-taking writing tasks for three weeks. their overall academic writing quality scores assigned based on portfolio assessment were studied i...

introduction: bnign laryngeal lesions are relatively commonly occurring problems which are often noted after changes in voice. since they are non-invasive and yield objective easy-to-collect data, acoustic laboratory methods are used along with perceptual assessments for evaluation of voice. studying acoustic characteristics is useful in diagnosis and treatment of voice disorders.  with regard ...

Abstract Real-time applications such as streaming media and voice require encryption algorithms that do not propagate errors and support fast encryption on small blocks. Since IP packets are delivered out-of-order in routed networks it is difficult to synchronize the source and the destination, therefore requiring encryption algorithms to support out-of-order generation of key stream. In this p...

In the past decade, Quality of Service (QoS) parameters have posed great challenges for Network Operators. This is partly because of the growth in network varied traffic demands. The Internet is a besteffort technology, and therefore, not optimized for the transport of delay sensitive services. Real time voice, video, and some applications, such as multimedia applications, video streaming, etc....

Users derive utility from services offered by the network. Lately, due to the multiplicity of WEB and multimedia applications as well as government deregulation, we have witnessed a corresponding increase in demand for a wide variety of mobile network services across a wide expanse, assembled together in an ad hoc manner. Images, voice, audio and video content will soon reach mobile terminals a...