Results 141 to 150 of about 4,310 (220)
Synergistic mechanism and stability control of gob-side entry retaining by pressure relief and roadside filling in thick coal seams. [PDF]
Shen F, Rui X, Liu C, Yang J.
europepmc +1 more source
The control of hard roof conditions in underground coal mining is critical for ensuring mining safety and efficiency. Hard roof control remains a critical challenge in underground mining, particularly affecting mining safety and efficiency.
Jiyu Wang +4 more
core +1 more source
ABSTRACT Objectives To assimilate data from individual randomised trials and perform a pooled analysis of short‐term outcomes of pulpotomy compared with root canal treatment (RCT) for teeth with symptomatic irreversible pulpitis (SIRP). Methods Randomised trials were conducted in eight countries using a standardised clinical protocol and outcome ...
I. A. El Karim +16 more
wiley +1 more source
Reasonable drilling angle and technology application for pre-cracking thick-hard roofs before driving gob-side roadways in ultra-thick seams. [PDF]
He F, Wu Y, Wang D, Zhang J, Tao K.
europepmc +1 more source
Abstract Functional morphology highlights the adaptive flexibility of fish feeding strategies across environmental gradients and seasonal variations, providing key insights for the management and conservation of ichthyofaunal communities and their habitats.
Cristina Gioia Di Camillo +2 more
wiley +1 more source
Energy Transfer Mechanism of Hard-Roof Hydraulic Fracturing in Goaf-Side Working Face Based on Microseismic-Driven Damage Model. [PDF]
Zhang R, Gong S, Cai W, Li H, Qiu Y.
europepmc +1 more source
ABSTRACT Understanding the pressure of emplacement of granitic intrusions is crucial to understanding the exhumation history of plutons and constraining the tectonic setting of magma emplacement. However, P–T and geochronological constraints from exhumed plutons are often characterized by large uncertainties, especially in shallow crustal settings with
Samuele Papeschi +4 more
wiley +1 more source
Mechanism and control strategies for asymmetric floor heave in extra-thick coal seam roadways under high stress. [PDF]
Zhang J +7 more
europepmc +1 more source
Leidyosuchus canadensis and Stangerochampsa mccabei share endocranial features such as posterior projection of a neurovascular canal in the maxilla and a paratympanic sinus system most similar to those of small‐bodied and young extant crocodylians, suggesting that these pedomorphic features may reflect the ancestral crocodylian condition.
G. Donzé +4 more
wiley +1 more source
Structural model of hard overburden shell in thick coal seam and its application. [PDF]
Fu X +5 more
europepmc +1 more source

