Results 51 to 60 of about 157,284 (285)
Sensors, 2021 Suffering from structural deterioration and natural disasters, the resilience of civil structures in the face of extreme loadings inevitably drops, which may lead to catastrophic structural failure and presents great threats to public safety.
Jian-Fu Lin +5 more
doaj +1 more source
Bulletin of the Mineral Research and Exploration, 2021 Seismic wave propagation in subsurface media endures from absorption, which can be evaluated by the seismic quality factor Q (Q-factor). Absorption is frequency-dependent.
Muammer Tün
doaj +1 more source
Temporal Activity Modulation of Deep Very Low Frequency Earthquakes in Shikoku, Southwest Japan [PDF]
Geophysical Research Letters, 2018 AbstractWe investigated long‐term changes in the activity of deep very low frequency earthquakes (VLFEs) in western Shikoku, southwest part of the Nankai subduction zone in Japan for 13 years by the matched‐filter technique. VLFE activity is expected to be a proxy of interplate slips.
Satoru Baba +5 more
openaire +1 more source
Annals of Geophysics, 2015 Data from the European network of very low/ low frequency (VLF/LF) receivers has been used to study the response of the lower ionosphere to the earthquake of magnitude 5.5 in Vrancea area on November 22, 2014.
Maria Solovieva +4 more
doaj +1 more source
Italian National Conference on Sensors, 2023 An innovative fiber-optic hydrophone (FOH) was developed and investigated via an experiment at sea; it is capable of operating at a very low frequency of the seismic spectrum and detecting small magnitude earthquakes.
S. Guardato +6 more
semanticscholar +1 more source
Pengembangan Sensor Koil Datar 3-D untuk Deteksi Gempa Dini di Wilayah Lombok
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017 In this study, a flat coil application as a three-dimensional (3-D) vibration sensor for early detection of earthquake is designed to detect earthquakes in Lombok Island. Flat coil is a very thin winding wire and is used as an inductor.
Islahudin, Muhammad Nizaar
doaj +1 more source
Very low frequency earthquakes within accretionary prisms are very low stress‐drop earthquakes
Geophysical Research Letters, 2006 We report characteristic P wave spectra and stress drops of very low frequency (VLF) earthquakes that occurred within the accretionary prism along the Nankai Trough, southwestern Japan. Although many VLF earthquakes showed no distinct phases on a raw seismogram, a few showed slightly distinct phases.
Yoshihiro Ito, Kazushige Obara
openaire +1 more source
, 2021 Vibration measurement technique is very important in structural integrity monitoring. Various fibre Bragg grating (FBG) based accelerometers have been developed for vibration measurement.
Z. Hafizi, E. Vorathin
semanticscholar +1 more source
Annals of Geophysics, 2012 <p>Signals from very low frequency (VLF)/ low frequency (LF) transmitters recorded on the ground station at Petropavlovsk-Kamchatsky and on board the French DEMETER satellite were analyzed for the Simushir earthquake (M 8.3; November 15, 2006). The
Pier Francesco Biagi +5 more
doaj +1 more source
Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure
Advanced Engineering Materials, EarlyView.Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari +3 more
wiley +1 more source