It’s the greatest cosmic murder mystery of the year: How did a black hole destroy a star—and what kind of black hole is the culprit? Normally, so-called “gamma ray bursts,” sudden flashes of extremely ...

Abstract: To improve the efficiency and reliability of the DC transformer in the new energy power system and reduce the cost and volume, in the paper, a step-up DC transformer is proposed. Proposed ...

Hyosung Heavy Industries has clinched a lucrative contract valued at 120 billion won, roughly USD 82 million, to deliver ultra-high-voltage transformers to the United Kingdom. This agreement with SP ...