Simple grade school math problem leaves people dumbfounded - can you get the correct answer in 30 seconds?

Can you solve the elementary school problem that divided the internet in less than 30 seconds? Test your might in this ...
Scientific Research Publishing

Evaluating the Impact of “Smart Water” on the Management and Technical Efficiency of Water Supply Utilities: Evidence from Investigation on Shandong Province in China ()

The New Type Key Think Tank of Zhejiang Province “China Research Institute of Regulation and Public Policy”, Hangzhou, China. 2 Shandong Province City Water Supply and Drainage Water Quality ...
IEEE

Solving Maxwell Equations in Hybrid Electrical Vehicle to Optimal Design by Multi-Objective Optimization Algorithms

Abstract: Hybrid Electrical Vehicles (HEVs) have three magnetic field sources: armature winding currents; permanent magnets; and field winding current. To initiate the investigation, the magnetic ...
IEEE

The Simulation of Radio Wave Propagation in Single/Multi-Knife-Edge Scenario with Two-Way Parabolic Equation

Abstract: In this article, we deduces the expression the Two-Way Parabolic Equation method(2WPE). First, in the single-knife-edge scenario, the 2WPE method is used to solve the radio wave propagation ...