Trigonometry and calculus often trouble board exam students due to heavy formulas and poor conceptual clarity. This article ...

As a completion of the previously published theory of higher-order types of asymptotic variation, we point out some remarks about different approaches to construct such ...

For the first time in its history, Volkswagen can conduct end-to-end vehicle R&D outside Germany, as the largest European automaker completes its new test workshops in Hefei, Anhui province. "We have ...