Abstract: The antenna array loaded with complex-amplitude metasurface (MS) is reported to realize a cosecant squared beam. A novel MS unit-cell is proposed to independently manipulate the amplitude ...

Abstract: Cloud computing enables Network Function Virtualization to dynamically provide and deploy network functions (NFs) to meet business-specific requirements. This approach streamlines NFs’ ...

Will you have a white Christmas this year? What do you notice about the map below? What questions does it raise for you? By The Learning Network What do you notice about the global nuclear stockpile, ...

Neurons are cells that transmit electrical signals through the nervous system. Motor neurons control muscle activity and movement by carrying impulses from the brain and spinal cord. Sensory neurons ...

The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body. Together, the brain and ...

Exercise is important for keeping the musculoskeletal system healthy. Bones support the body and protect vital organs. Skeletal muscles help move parts of the body by contracting. The musculoskeletal ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...