Abstract: Metro train rolling bearings operate under variable-speed conditions due to continuous acceleration and deceleration, leading to time-varying characteristics in vibration signals. These ...

Abstract: Optical fiber communication is the core support for information transmission in power systems, and the accurate location of its optical cable faults is the ...

Statistical methods are mathematical formulas, models, and techniques that are used in statistical analysis of raw research data. The application of statistical methods extracts information from ...

When you are doing division, it's helpful to use a written method. This can be especially useful if the numbers get too big to calculate in your head. If the number you are dividing by (this is called ...