In this work, we investigate the temporal evolution of ground deformation affecting the ocean-reclaimed lands of the Shanghai (China) megacity, from 2007 to 2016, by applying the Differential Synthetic Aperture Radar Interferometry (DInSAR) technique known as the Small BAseline Subset (SBAS) algorithm. For the analysis, we exploited two sets of non-time-overlapped synthetic aperture radar (SAR)...

composites provide design flexibility because many of them can be moulded into complex shapes.  carbon fibre-reinforced epoxy composites exhibit excellent fatigue tolerance with high specific strength and stiffness. these properties led to their numerous advanced applications ranging from military and civil aircraft structures to consumer products. the modelling of beams undergoing arbitrarily ...

The purpose of this study was to reveal the cause of frequency modulation (FM) present in microembolic Doppler ultrasound signals. This novel explanation should help the development of sensitive microembolus discrimination techniques. We suggest that the frequency modulation detected is caused by the ultrasonic radiation force (URF) acting directly on microemboli. The frequency modulation and t...

Static coseismic offsets >1 mm are observed up to 7800 km away from the great Sumatra-Andaman earthquake of 26 Dec. 2004 using global GPS network data. We investigate the rupture process based on far-field continuous GPS data. To reduce error in the coseismic offset estimates due to post-seismic deformation in the days following the main shock, we simultaneously fit a model of coand postseismic...

numerical methods such as boundary element and finite element methods are widely used for the stress analysis in solid mechanics. this study presents boundary element method based on the displacement discontinuity formulation to solve general problems of interaction between hydraulic fracturing and discontinuities. the crack tip element and a higher order boundary displacement collocation techn...

Landslide displacement prediction is essential to establish the early warning system (EWS). According dynamic characteristics of landslide evolution and shortcomings traditional static model, a model based on long short-term memory (LSTM) neural networks was proposed. Meanwhile, Variational mode decomposition (VMD) theory used decompose cumulative triggering factors, which not only give clear p...

BACKGROUND Efforts to prevent and respond to heat-related illness would benefit by quantifying the impact of summer heat on acute population mortality. We estimated years of life lost due to heat in 14 European cities during the 1990s accounting for harvesting. METHODS We combined the number of deaths attributable to heat estimated by the PHEWE project with life expectancy derived from popula...

Structures undertaking dynamic load store cumulative damages on their structural members. Although these damages are generally estimated by measuring the acceleration, velocity and displacement at several observing points, the health monitoring system based on these measurements could be expensive. Therefore, approaches to the health monitoring system utilizing only the acceleration and decreas...

Periodic errors in heterodyne displacement measuring interferometry occur due to frequency mixing in the interferometer. These nonlinearities are typically characterized as firstand second-order periodic errors which cause a cyclical (non-cumulative) variation in the reported displacement about the true value. This study implements an existing analytical periodic error model in order to identif...

conclusions early trauma, dissociative experience, and suicide ideation can predict active/passive a/pap and explain the considerable variance of survival index. results structural coefficients showed that the pattern of high scores in active/passive a/pap correlates with the pattern of high scores in early trauma, dissociative experience and suicide ideation. the findings of the study showed t...