The 2008 Wells earthquake occurred on a northeast-striking, southeast-dipping fault that is clearly delineated by the aftershock swarm to a depth of 10-12 km below sea level. However, Cenozoic rocks and structures around Wells primarily record east-west extension along northto north-northeast-striking, west-dipping normal faults that formed during the middle Miocene. These faults are responsibl...

the main goal of this study was to evaluate differences in stress distribution relevant to the number of implants under an anterior bridge when combined with a removable partial denture in the posterior region.four three-dimensional finite element models (3d fem) were designed from a mandible containing an implant-supported bridge extending between canines, and a bilateral distal extension remo...

We present several different measurements of the velocities of structures within the circumstellar envelope of SN 1987A, including the inner, equatorial ring (ER), the outer rings (ORs), and the diffuse nebulosity at radii < ∼ 5 pc, based on CTIO 4m and HST data. A comparison of STIS and WFPC2 [N II]λ6583 loci for the rings show that the ER is expanding in radius at (10.5±0.3) km s (with the no...

[1] We apply adjoint models of mantle convection to North America since the Late Cretaceous. The present-day mantle structure is constrained by seismic tomography and the time-dependent evolution by plate motions and stratigraphic data (paleoshorelines, borehole tectonic subsidence, and sediment isopachs). We infer values of average upper and lower mantle viscosities, provide a synthesis of Nor...

Tropical cyclones (TCs) before landfall deserve great concerns, which directly affect the following forecasts and alarm-issuing. In 1949–2021, nearly 29% of total number TCs that originated over western North Pacific (WNP) South China Sea (SCS) made in China. Of them, those from WNP display a significantly lower (higher) ratio making (south China) (the second year after) El Niño years. At 48 h ...