Shiyou jixie, 2017 In the construction of large-diameter pipeline, the conventional directional drilling crossing technology often observes fatigue break and greatly reduced service life of drill pipe under large torque.
Zhu Xiaohua +4 more
doaj
A supervised machine learning model to select a cost-effective directional drilling tool. [PDF]
Sci RepNour M, Elsayed SK, Mahmoud O.
europepmc +1 more source
Parametric study of a new pressure relief borehole layout for high-stress roadway rockburst prevention. [PDF]
Sci RepLu F, Dou L, Chai Y, Ma X, Cao J, Li H.
europepmc +1 more source
Design and application study of the key technical parameters of dense drilling for pressure relief in coal mine roofs: a case study. [PDF]
Sci RepMa J, Wang H, Li X, Dong G, Yuan Y.
europepmc +1 more source
Ground control strategies for longwall top-coal caving panel in extra-thick coal seams with thick-hard roof. [PDF]
Sci RepWang R +4 more
europepmc +1 more source
Horizontal Directional Drilling with Ductile Iron Pipe
, 2007 Since its development in 1948, and its introduction by the industry in 1955, Ductile Iron Pipe has become the most widely used product for water line installations. In conjunction with water line installations, Ductile Iron Pipe has become often used for
Pompeo, Jami
core
Impact of Temperature Variations on Shaft Wall Fracture and the Mechanical Properties of Hot Dry Rock. [PDF]
ACS OmegaMa C +5 more
europepmc +1 more source
Operationalizing BioSSbD: A safe‐and‐sustainable‐by‐design framework for biorefineries
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Biorefineries are central to the transition toward a circular bioeconomy; however, their increasing scale and technological heterogeneity, and the integration of biological, chemical, and thermochemical processes introduce complex challenges related to safety, sustainability, and operational reliability. Existing Safe‐and‐Sustainable‐by‐Design
Fernando Ramonet
wiley +1 more source
Resistivity method-based rock core orientation experimental protocol. [PDF]
PLoS OneHe J +9 more
europepmc +1 more source
British Educational Research Journal, EarlyView.Abstract This article examines how national education in Hong Kong functions as a contested arena in which state and non‐state actors struggle over the meaning of citizenship, identity and schooling. Using inductive frame analysis of 319 news articles (2020–2025) from five Chinese‐ and English‐language outlets, it identifies diagnostic, prognostic and ...
Jason Cong Lin
wiley +1 more source