نتایج جستجو برای: sks splitting
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Two-component systems (TCSs) are key elements in bacterial signal transduction in response to environmental stresses. TCSs generally consist of sensor histidine kinases (SKs) and their cognate response regulators (RRs). Many SKs exhibit autokinase, phosphoryltransferase and phosphatase activities, which regulate RR activity through a phosphorylation and dephosphorylation cycle. However, how SKs...
Little has been seismically imaged through the lithosphere and mantle at rifted margins across continent-ocean transition. A 2014–2015 community seismic experiment deployed broadband instruments shoreline of eastern North American margin. Previous shear-wave splitting along margin shows several perplexing patterns anisotropy, by proxy, flow. Neither parallel offshore fast azimuths nor null on c...
RATIONALE AND OBJECTIVE The set partitioning in hierarchical trees (SPIHT) wavelet image compression algorithm with the human visual system (HVS) quantization matrix was investigated using x-ray coronary angiograms. We tested whether the HVS quantization matrix for the SPIHT wavelet compression improved computer model/human observer performance in a detection task with variable signals compared...
Abstract Rapid plate motion, alongside pronounced variations in age and thickness of the Australian continental lithosphere, makes it an excellent location to assess relationship between seismic anisotropy lithosphere‐asthenosphere dynamics. In this study, SKS PKS shear‐wave splitting is conducted for 176 stations covering transition from South Craton eastern Phanerozoic Australia. Comparisons ...
[1] Anomalous boundary layer structure at the core-mantle boundary (CMB) is investigated using a global set of broadband SKS and SPdKS waves from permanent and portable broadband seismometer arrays. SPdKS is an SKS wave that intersects the CMB at the critical angle for ScP, thus initiating a diffracted P wave (Pdiff) along the CMB at the core entry and exit locations. The waveshape and timing o...
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