Digital terrestrial video broadcasting systems based on orthogonal frequency division multiplexing (OFDM), such as second generation of digital standard (DVB-T2), often include carriers reserved for peak-to-average power ratio (PAPR) reduction. This paper presents a low-complexity PAPR reduction method that inserts coded data onto subset carriers. Using differential binary phase shift keying (D...

Pulmonary arteriovenous malformations (PAVM) are abnormal communications between pulmonary arteries and pulmonary veins, and most commonly congenital in nature. Although rare, it is an important consideration in cyanotic patients of unknown cause. We report 3 cases with diffuse PAVM in children with different clinical manifestations and initial diagnosis was made by transthoracic contrast echoc...

This study aims to estimate the tree diversity status of Rashad Forest Reserves in locality South Kordofan State Sudan. For data collection, eight sample plots (20 × 20 m) were taken randomly, and parameters determined: trees species diversity, composition, relative density, dominance, important value index, richness forest reserve. The results show that a total 237 56 species, including 22 fam...