this study sought to investigate the impact of teaching speech acts and role relations through authentic audio-taped and video-taped materials on the level of iranian efl learners’ pragmatic competence. to this end, 55 intermediate learners were ed and randomly assigned to two experimental groups: the audio-taped group and the video-taped group. during the treatment, the audio-taped group recei...

Introduction Medical equipment is an essential health intervention tool used by nurses for prevention, diagnosis and treatment of disease and for rehabilitation of patients. However, access to functioning medical equipment is a challenge in low- and middle-income countries. The World Health Organization estimated that 50 to 80 percent of medical equipment in developing countries is not working,...

Audio spatialization is a rapidly growing field in acoustics and audio signal processing. Measurements and models of head-related impulse responses (HRIRs) of human subjects or KEMAR dummy heads are the primary source of information for research on spatial audio. The information contained in HRIRs measured at various azimuth and elevation angles is sufficient for synthesizing realistic three di...

The MPI VideoLab is a custom built, flexible digital videoand audio recording studio that enables high quality, time synchronized recordings of human actions from multiple viewpoints. This technical report describes the requirements to the system in the context of our applications, its hardwareand software equipment and the special features of the recording setup. Important aspects of the hardw...

Application of digital signal processing to audio is often limited by available converter technology and recorder datawidth to processes with controlled dynamic range. In digital mixing consoles some analogue gain control is normally required to achieve adequate performance for the input channel ADCs and digital multi-track recorders. This paper examines such dynamic range bottlenecks and deriv...

The control policies that are used in inventory management systems assume that orders arrive in the same sequence as they were ordered. Due to changes in supply chains and markets, this assumption is no longer valid. Therefore, traditional control policies have to be modified in order to be able to manage inventories in case of order crossovers. This paper aims at providing an improved understa...

[1] Ice velocities derived from five Landsat 7 images acquired between January 2000 and February 2003 show a twoto six-fold increase in centerline speed of four glaciers flowing into the now-collapsed section of the Larsen B Ice Shelf. Satellite laser altimetry from ICESat indicates the surface of Hektoria Glacier lowered by up to 38 ± 6 m in a six-month period beginning one year after the brea...

The system adopts adaptive control, and the controller of audio management component is directly applied to controlled object. Through online calculation, model identified by using dynamic characteristics object, relationship between input output variables expressed. It can be corrected entering leaving data, which actually correct controller. initial rules are composed default models. continuo...