Abstract: This paper presents experimental and theoretical results on focusing a long electron beam with a permanent magnet structure which produces a periodic magnetic field along the axis of the ...

Abstract: To tackle the torque pulsation challenge in permanent magnet machines, this paper proposes two design methods that involve shifting the permanent magnet pole-pairs. Method 1 ...

In his book The Mathematical Universe, mathematician William Dunham wrote of John Venn’s namesake legacy, the Venn diagram, “No one in the long history of mathematics ever became better known ...

In May 2024, an epic solar storm rattled Earth so powerfully that its effects were felt even at the bottom of the ocean.

We recommend using your OS's package manager directly instead for improved security but the install script is by no means insecure. In addition to being a runnable CLI tool, D2 can also be used to ...

Ashlee is an insurance editor, journalist and business professional with an MBA and more than 17 years of hands-on experience in both business and personal finance. She is passionate about ...