This book systematically summarizes the main technology and latest advancements of China's thick coal seam underground mining technology. It covers the mine development methods, the top coal caving technology and drawing mechanism, the measurement of top coal recovery and technology to improve the recovery ratio, the large mining height technology and coal wall stability control, large cross-section roadway support technology, slicing mining technology and roadway layout, intelligent minin...

Delay Doppler Communications and Sensing: Principles, Advances and Applications of OTFS provides a comprehensive exploration of the principles and cutting-edge developments of delay Doppler (DD) communications and sensing with a specific focus on the advances and application of orthogonal time frequency space (OTFS). It highlights the fundamental theory for DD communications and sensing through the Zak transform, and discusses how this classic concept from quantum physics can reshape moder...

This atlas provides ultrastructural morphological images of human spermatozoa. Sperm morphology plays an essential role in sperm-oocyte interactions and early embryonic development, and human sperm ultrastructural morphology offers a valuable reference tool for assessing certain etiologies of male infertility and reproductive failure. However, the ultrastructural morphology of human sperm has not been systematically evaluated or thoroughly described in the literature. Using 470 original an...