A Patriot air-defense system is moving from Israel to Ukraine, and Western allies are discussing the logistics of getting Germany or Greece to send another. By Kim Barker Helene Cooper Lara Jakes and ...

This film discusses the concept of functions in mathematics, emphasizing their importance and modern formulations. It explains how to create ordered pairs from a set of numbers and illustrates how ...

Introduction: The traditional partial discharge localization improvement strategy mainly starts from the intelligent algorithm, but fails to consider the influence of core winding and oil temperature ...

Many types of economic problems require that we consider two variables at the same time. A typical example is the relation between price of a commodity and the demand or supply of that commodity. The ...

With the assistance of rotatable mandrel and slit projection systems, PLLP can rapidly achieve the manufacturing of single-layer or multi-layer multi-material structures. A novel 3D printing ...

Abstract: In order to solve the convergence problem of power flow calculation in power grid, an improved rectangular coordinate Newton method is proposed. This method improves the convergence of the ...

Abstract: A system for antenna computer modelling is considered, which is based on the wire model of the radiating surface of an antenna. The system allows interactive change of antenna geometry and ...