establishing and operating private radio and television and its possible activity beside state radio and television is the selective method of administering radio and television in many countries worldwide. in legal system of iran, state run radio and television in article 44 of the constitution and interpretation of guardian council of mentioned article, establishing private radio and televisi...

The development of high-definition television (HDTV) in the United States has recently resulted in the establishment of a national standard for its coding and transmission. This standard dictates, among other specifications, certain limitations on the allowable resolution of transmitted HDTV signals. There are many of these allowable formats, permitting scene-dependent processing and encoding; ...

BACKGROUND Prior research has found that television viewing is associated with poor diet quality, though little is known about its long-term impact on diet, particularly during adolescence. This study examined the associations between television viewing behavior with dietary intake five years later. METHODS Survey data, which included television viewing time and food frequency questionnaires,...

■ High-definition vector imaging (HDVI) is a data-adaptive approach to synthetic-aperture radar (SAR) image reconstruction based on superresolution techniques originally developed for passive sensor arrays. The goals are to produce more informative, higher-resolution imagery for improving target recognition with UHF and millimeter-wave SAR and to aid the image analyst in identifying targets in ...

We review the design and implementation of UltraGrid, a new high definition video conferencing system, and present some experimental results. UltraGrid was the first system to support gigabit rate high definition interactive video conferencing on commodity systems and networks, and we present measurements to illustrate behavior of production networks subject to such real time traffic. We illust...

The HD video stream display (receiving) uses either a software-based solution with color depth down-sampling and field de-interlacing, or another Centaurus card. Data distribution to individual participants of the videoconference is achieved using a user-controlled UDP packet reflector based on the Active Element idea. The viability of this system has been demonstrated at the iGrid 2005 confere...

ENTERPRISE SURVEY DATA. — We use data base on Enterprise Survey of the World Bank Group for the period 2002-2016 . Details on the methodology and data collection are available at http://www.enterprisesurveys.org/methodology. The data are collected on behalf of the World Bank by private contractors since they asked a range of sensitive questions and respondents are assured of confidentiality. Th...

A bitrate of about 270 Mbit/s is needed to transmit uncompressed digital video that accords with ITU-R Rec. BT. 601 (i.e. standard-definition television). Digital HDTV, on the other hand, needs a considerably greater bitrate and – regardless of the modulation scheme adopted – transmission via traditional broadcast channels is impossible without the application of advanced video compression tech...