Quadrupole mass spectrometers are widely applied due to their compact structure, easy operation, and mature technology, which offer high economic and market competitiveness across various fields. A ...

The Fisher distribution is recognized as the primary and fundamental probability model for analyzing the discontinuity orientation data in rock mass, which suggests that the orientation data displays ...

Scientists can determine the mass of subatomic particles that are built from quarks by looking at the particles' energy and momentum in four-dimensional spacetime. One of the quantities that encode ...