TORSIONAL PENDULUM DRAG REDUCTION TECHNOLOGY FOR DIRECTIONAL DRILLING OF ULTRA DEEP HOLE IN UNDERGROUND COAL MINE

Torsional Pendulum Drag Reduction Technology for Directional Drilling of Ultra Deep Hole in Underground Coal Mine

Aiming at the problems such as low efficiency and depth limit of directional drilling caused by the support pressure of drilling tools in the directional drilling of ultra-deep hole in underground coal mine, learning from the twist drilling technology in Canvas Beach Bag With Rope Handle oil drilling, this paper analyzes the technological principle

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A Parallel Unmixing-Based Content Retrieval System for Distributed Hyperspectral Imagery Repository on Cloud Computing Platforms

As the volume of remotely sensed data grows significantly, content-based image retrieval (CBIR) becomes increasingly important, especially for cloud computing platforms that facilitate processing and storing big data in a parallel and distributed way.This paper proposes a novel parallel CBIR system for hyperspectral image (HSI) repository on cloud

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Ancaman dan Tantangan Muslim Indonesia Di Era Perang Proksi

Proxy war is the intervention Originals High Rise Loose of a third party in one of the factions to fight another faction.The Arab Spring and the Syrian Civil War as well as the lone wolf attack IS (Islamic State) are one of its manifestations.In the future, proxy war will be a method commonly used in conflict.This is because the progress of informa

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