Results 191 to 200 of about 4,380 (258)
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley +1 more source
Disaster-causing mechanism and control technology of interlayer rock breakage in gently inclined close distance coal seams mining. [PDF]
Yuchi X +6 more
europepmc +1 more source
ABSTRACT This is a retrospective case study of an antisemitic lone actor terrorist who completed the deadliest attack against the Jewish community in American history. The analysis through the lens of the Terrorist Radicalization Assessment Protocol (TRAP‐18) finds that 72% of the warning indicators were present, including four proximal warning ...
Molly Amman, Julia Kupper, J. Reid Meloy
wiley +1 more source
Swin Transformer Based Recognition for Hydraulic Fracturing Microseismic Signals from Coal Seam Roof with Ultra Large Mining Height. [PDF]
Wang P, Feng Y, Sun X, Cheng X.
europepmc +1 more source
ABSTRACT Carefully selected patients with severe posterior maxillary atrophy may be successfully treated using a modified transcrestal sinus floor elevation. An inwardly displaced crestal bony window may facilitate membrane elevation while allowing simultaneous implant placement with minimal surgical invasiveness.
Luca Ortensi +5 more
wiley +1 more source
Research on bending-slip rib spalling and rib stability of extra-thick hard coal wall. [PDF]
Xue B, Shang Y, Wang C, Zhang F, Liu Y.
europepmc +1 more source
This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin +4 more
wiley +1 more source
Evolution of Overburden Fractures and the Water-Conducting Fracture Zone in Closely Spaced Coal Mine Seams under Highly Water-Rich Aquifers. [PDF]
Liu X +6 more
europepmc +1 more source
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen +6 more
wiley +1 more source
Mechanism and control of asymmetric floor heave in thick-seam gob-side roadways with staggered-elevation negative coal pillar layout. [PDF]
Liu B +5 more
europepmc +1 more source

