Casagrande: Punctuation matters: stick to the rules

Anyone who knows, or intuitively understands, that two words describing a noun are hyphenated ends up writing some compounds ...
BBC

English in a Minute Series 4

Research is an activity where you study or investigate something to learn new things about it. There are some words that we often use together with 'research'. These are called collocations. Learn ...
BBC

Cases in German

Many German words change their form or add different endings according to their function in a sentence. The accusative case is used for the direct object of the sentence. The direct object is the ...
IEEE

Model-Free Control Using Nonlinear Extended State Observer and Non-singular Fast Terminal Sliding Mode for Quadrotor Position and Attitude

Abstract: In this paper, a nonlinear extended state observer (NESO)-based model-free non-singular fast terminal sliding mode control (NESO-TSMC) is developed for trajectory tracking control and ...