Scientists have developed the first electrically pumped continuous-wave semiconductor laser composed exclusively of elements ...

Scientists have developed the first electrically pumped continuous-wave semiconductor laser composed exclusively of elements from the fourth group of the periodic table -- the 'silicon group'. Built ...

Spring materials are thus an important element ... edited by C.H. Flurscheim, revised edition 1982; Circuit Interruption theory and techniques, edited by Thomas E. Browne Jr., edition 1984; J.B.P.

To understand these crucial elements, it is necessary to review the electric ... circuit breakers and butt contact shape is commonly used . The present article is based on our personal experience. • ...

Electromagnetic interference is becoming a bigger disturbance in power electronics and other systems. Explore the many ...

Prior knowledge needed: Fundamentals of Electrical Engineering and Fundamental Physics ... In module 1 you will learn how to specify and use temperature sensors in an embedded circuit. First, you will ...

National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...