In order to improve the directivity, a double-slot structure is proposed to design a new Vivaldi antenna. The two slots are excited in uniform amplitude and phase by using a T-junction power divider.

At some point, RNA must have replicated itself before the evolutionary arrival of DNA and proteins, and now we might know how ...

Most proteins are left-handed, but scientists have found an ancient molecule that works in both mirror-image forms.

Why is north eastern railway connectivity project in India relevant to the UPSC exam? What is the significance of topics such ...

Department of Biochemistry, Weill Medical College of Cornell University, New York, New York 10021, and Department of Chemistry, New York University, New York, New York 10003 Article Views are the ...

† Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970, São Carlos, São Paulo, Brazil ‡ Departamento de Física, Universidade Federal do Ceará, CP 6030, 60455-970, Fortaleza, ...

In 2012, scientists Jennifer Doudna and Emmanuelle Charpentier replicated this mechanism found in microbes to develop a ...