نتایج جستجو برای: blind grils
تعداد نتایج: 83280 فیلتر نتایج به سال:
A descriptive-cross sectional study conducted to identifying of prevalence and predisposition factors of Deaf-Blindness in primary school for blind children. Target population are primary school for blind children of Tehran city. From 381 blind pupils, 60 predisposed to deafness and 14 were developed with hearing loss. The prevalence of deaf predisposition was estimated 17.3% and the prevalen...
Introduction: In 1995, the World Health Organization (WHO) estimated that there were 37.1 million blind people worldwide. It has subsequently been reported that 110 million people have severely impaired vision, hence are at great risk of becoming blind. Watkins predicted an annual increase of about two million blind worldwide. This study was designed to investigate the causes of blindness and l...
Purpose: Digital library user interfaces has a determining role in desirable performance of this kind of libraries. Digital Library service providers to the blind and deaf users will have their best performance when the users (deaf and blind users) could have a proper interaction with them. This study aims to evaluate and analyze the criteria related to user interface in digital libraries servi...
We investigate Maximum Likelihood (ML) methods for blind and semi-blind estimation of multiple FIR channels. Two blind Deterministic ML (DML) strategies are presented. In the first one, we propose to modify the Iterative Quadratic ML (IQML) algorithm in order to ”denoise” it and hence obtain consistent channel estimates. The second strategy, called Pseudo-Quadratic ML (PQML), is naturally asymp...
Abstract The screw-blind riveting combines direct screwing with the blind riveting. novel joining element can be integrated into every injection-molded component like a standard screw boss without significantly increasing processing time. screw-blind-rivet (SBR) consists of connected to substrate by thin sleeve. process screw-blind-riveting divided two phases. first is screw-in phase. secured S...
This paper develops adaptive step-size blind LMS algorithms and adaptive forgetting factor blind RLS algorithms for code-aided suppression of multiple access interference (MAI) and narrowband interference (NBI) in DS/CDMA systems. These algorithms optimally adapt both the step size (forgetting factor) and the weight vector of the blind linear multiuser detector using the received measurements. ...
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