471 research outputs found
Northern Barbados accretionary prism: Structure, deformation, and fluid flow interpreted from 3D seismic and well-log data
We reanalyzed 3D seismic reflection and logging-while-drilling data from the toe
of the northern Barbados accretionary prism to interpret structure, deformation, and fluid
flow related to subduction processes. The seafloor amplitude and coherence reveal an
abrupt change in the thrust orientation from NNE at the thrust front and north and NNW
about 5 km west of the thrust front. These thrust sets are separated by a triangular-shaped
quiet area, which may represent a zone of low strength. The northeast-trending band of
strong negative amplitude and high coherence in the décollement, known to be an interval
of arrested consolidation, overlaps the quiet area, suggesting that the arrested consolidation
may be related to the lack of thrust imbrication, and thus, vertical drainage for fluid
in the accretionary prism. Fractal analysis of the décollement and top of the subducting
oceanic basement indicates that the relief of the décollement correlates with the topography
of the oceanic basement. Differential compaction of the underthrust sediment overlying
the rugged oceanic basement, together with the basement faults that penetrate into the
décollement probably caused relief or even faulting in the décollement
Capsule network with shortcut routing
This study introduces "shortcut routing," a novel routing mechanism in
capsule networks that addresses computational inefficiencies by directly
activating global capsules from local capsules, eliminating intermediate
layers. An attention-based approach with fuzzy coefficients is also explored
for improved efficiency. Experimental results on Mnist, smallnorb, and affNist
datasets show comparable classification performance, achieving accuracies of
99.52%, 93.91%, and 89.02% respectively. The proposed fuzzy-based and
attention-based routing methods significantly reduce the number of calculations
by 1.42 and 2.5 times compared to EM routing, highlighting their computational
advantages in capsule networks. These findings contribute to the advancement of
efficient and accurate hierarchical pattern representation models.Comment: 8 pages, published at IEICE Transactions on Fundamentals of
Electronics Communications and Computer Sciences E104.A(8
Empirical Validation of Heat Transfer Performance Simulation of Graphite/PCM Concrete Materials for Thermally Activated Building System
To increase the heat capacity in lightweight construction materials, a phase change material (PCM) can be introduced to building elements. A thermally activated building system (TABS) with graphite/PCM concrete hollow core slab is suggested as an energy-efficient technology to shift and reduce the peak thermal load in buildings. An evaluation of heat storage and dissipation characteristics of TABS in graphite/PCM concrete has been conducted using dynamic simulations, but empirical validation is necessary to acceptably predict the thermal behavior of graphite/PCM concrete. This study aimed to validate the thermal behavior of graphite/PCM concrete through a three-dimensional transient heat transfer simulation. The simulation results were compared to experimental results from previous studies of concrete and graphite/PCM concrete. The overall thermal behavior for both materials was found to be similar to experiment results. Limitations in the simulation modeling, which included determination of the indoor heat transfer coefficient, assumption of constant thermal conductivity with temperature, and assumption of specimen homogeneity, led to slight differences between the measured and simulated results
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