Results 131 to 140 of about 125,319 (310)
Endoscopic endonasal approach with extended orbital roof removal for a giant esthesioneuroblastoma: illustrative case. [PDF]
Wu L, Qian G, Gu Y.
europepmc +1 more source
ABSTRACT Sustainability‐oriented collaborations are inter‐organisational arrangements where the competencies of multiple companies are pooled together to tackle environmental challenges. These collaborations differ from traditional strategic alliances in that they tackle complex goals amidst greater uncertainties that extend beyond economic performance,
Vittorio Maria Garibbo +3 more
wiley +1 more source
Staged and geometry-adapted support for coal mine roadways under weak rock conditions: a numerical study. [PDF]
Guo Y, Ma Q, Zhong S.
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In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian +6 more
wiley +1 more source
Radar-based observation of a lava tube on Venus. [PDF]
Carrer L, Diana E, Bruzzone L.
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Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang +10 more
wiley +1 more source
Roof dust accumulation characteristics and influencing factors in typical urban areas of Beijing. [PDF]
Su C +5 more
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This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying +7 more
wiley +1 more source
High-power short-duration ablation of the superior vena cava: safety and efficacy using the right superior pulmonary vein roof as a landmark. [PDF]
Yin J, Li H, Du Z, Liang J, Li T.
europepmc +1 more source

