Learn about and revise angles, lines and multi-sided shapes and their properties with this BBC Bitesize GCSE Maths Edexcel study guide.

The traditional neural network-based angle-direction estimation methods are mainly for non-coherent signals, and it is difficult to effectively achieve the accurate estimation of direction of arrival ...

Background: Acute-on-chronic liver failure is characterized by acute hepatic decompensation and high short-term mortality, thereby necessitating prompt prognostic assessment. Although phase angle (PhA ...

An innovative design method of wide-angle metamaterial absorber based on antenna reciprocity principle is proposed. According to the antenna reciprocity principle, a wide-angle metamaterial absorber ...

To assess the clinical effectiveness and adverse events of miscellaneous and non-pharmacological interventions for preventing acute HAI in people who are at risk of developing high altitude illness in ...