Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"Earthquake detection"”.
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Study of the seismicity in the Western Alps by developing and applying an automatic earthquake detection and location Method
We developed a (almost) fully automatic earthquake detection and location method to study seismicity on regional scales based on array-processing techniques. We combined the beam-formed network response with template matched-filtering to enhance detection capabilities. We applied our method to the …
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Addressing climate-driven challenges in groundwater management and coastal hydrogeology through numerical modeling
… assessment workflow was developed to improve earthquake detection capabilities. Further research assessed freshwater availability on Pacific atolls, revealing significant impacts of sea level rise, precipitation changes, and human activities on water resources. Additionally, numerical …
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Autonomous cricket biosensors for acoustic localization
… environments, with a possible application to earthquake detection. We utilize the cricket's natural ability to localize low frequency (5 Hz - 600 Hz) acoustic sources using hair-covered appendages called cerci. Whereas previous investigations explored crickets' neurological response to near …
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Inferring user location from time series of social media activity
… ranging from tracking diffusion of sentiment to earthquake detection. One approach used to determine a user's home location is to examine the timing of their posts, but the precision of existing time-based location predictors is limited to discrimination among time zones. In this thesis, we …
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From Passive Data Collection to Sensor-Level Intelligence
… compact TinyML models for on-device event detection with emphasis on seismic monitoring such as earthquake detection, ensuring that only high-value information is sent to the cloud. The second direction focuses on environmental monitoring, where maintaining a continuous system view in the …
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Analyzing the Collective Behavior of Earthquakes to Understand Fault Mechanisms Better
… there is a tenfold increase in the number of earthquakes of magnitude 𝑚 > 𝑀 when 𝑀 decreases by one unit. Thus, the vast majority of earthquakes occur at magnitudes so small that the vibrations they cause can barely be recorded at the surface of Earth. Given that earthquakes are the symptoms …
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Towards Continuous Mobile Sensing for Remote COPD Monitoring
… and have been used in applications ranging from earthquake detection to flight control for drones. To make these devices relevant for COPD monitoring, this thesis focuses on two signals that can be extracted from wearable sensors, respiratory rate and coughing. To detect respiratory rate, we …
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Recognition and investigation of temporal patterns in seismic wavefields using unsupervised learning techniques
… requires new processing utilities for event detection, signal classification and data visualization. Various machine learning algorithms, which can be adapted to seismological problems, have been suggested in the field of pattern recognition. This can be done either by means of supervised …
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Investigating Volcanic and Glacial Processes Using Microseismicity
… shallow melt storage region. The seismicity and earthquake source mechanisms suggest that melt travels along a pathway that is approximately vertical, and laterally offset from the main shallow melt storage region by 12 km. However, it is also likely that an aseismic melt feed exists directly …