Results 51 to 60 of about 70,235 (286)

The influence of the brittle-ductile transition zone on aftershock and foreshock occurrence

Nature Communications, 2020
Earth surface continues to slip after large earthquakes at a slow velocity for a period of a year or more. In this study, the authors show how such slow slip before and after large earthquakes relates to the interaction of the brittle zone of the fault ...
Giuseppe Petrillo, Eugenio Lippiello, François P. Landes, Alberto Rosso   +3 more
doaj   +1 more source

Mechanics of earthquakes [PDF]

, 1994
An earthquake is a sudden rupture process in the Earth’s crust or mantle caused by tectonic stress. To understand the physics of earthquakes it is important to determine the state of stress before, during, and after an earthquake.
Kanamori, Hiroo
core   +1 more source

Are megaquakes clustered? [PDF]

, 2012
We study statistical properties of the number of large earthquakes over the past century. We analyze the cumulative distribution of the number of earthquakes with magnitude larger than threshold M in time interval T, and quantify the statistical ...
Allen, Ammon, Brodsky, Bufe, Bufe, Dragert, Eberhart-Philips, Eli Ben-Naim, Engdahl, Eric G. Daub, Freed, Gardner, Gomberg, Gutenberg, Hill, Ito, Katsumata, Kawasaki, Kerr, Michael, Pacheco, Parsons, Paul A. Johnson, Robert A. Guyer, Shearer, Simons, Wells   +26 more
core   +2 more sources

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

Earthquake Size Distribution: Power-Law with Exponent Beta = 1/2? [PDF]

, 2010
We propose that the widely observed and universal Gutenberg-Richter relation is a mathematical consequence of the critical branching nature of earthquake process in a brittle fracture environment.
Antsyferov, Beroza, Bird, Bird, Boettcher, Boettcher, Clauset, Csikor, Dahmen, Dimiduk, Dziewonski, Dziewonski, Ekström, Ekström, Enescu, Feller, Frohlich, Frohlich, Geist, Gutenberg, Harris, Hiramatsu, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kagan, Kanamori, Miguel, Molchan, Okal, Otter, Park, Perez-Campos, Rhoades, Rhoades, Rhoades, Richeton, Schorlemmer, Schwartz, Shelly, Tinti, Vere-Jones, Vere-Jones, Vere-Jones, Weiss, Werner, Yan Y. Kagan, Zaiser, Zaiser, Zaiser, Zhuang, Zhuang   +62 more
core   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Inter‐episodic Tremor and Slip Event Episodes of Quasi‐spatiotemporally Discrete Tremor and Very Low Frequency Earthquakes in Cascadia Suggestive of a Connective Underlying, Heterogeneous Process

Geophysical Research Letters, 2020
Exploring relationships between different types of slow earthquakes is essential for determining their source properties and controlling parameters. Studies show that very low frequency earthquakes (VLFEs) and tremor are discrete events that necessitate ...
Alexandra A. Hutchison
doaj   +1 more source

Subdaily Slow Fault Slip Dynamics Captured by Low‐Frequency Earthquakes

AGU Advances, 2023
Geodetic positioning is the geophysical record of reference for slow slip events, but typical daily solutions limit studies of the evolution of slow slip to its long‐term dynamics.
Caroline Mouchon, William B. Frank, Mathilde Radiguet, Piero Poli, Nathalie Cotte   +4 more
doaj   +1 more source

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Microfluidic Valve‐Integrated Garment for Smooth Sequential Gradient Mechanotherapy

Advanced Intelligent Systems, EarlyView.
We present a soft wearable sleeve that delivers smooth, gap‐free compression using overlapping air‐filled actuators and tiny microfluidic valves. The system reduces bulk, lowers power needs, and uses a smartphone‐sized control box. It can provide sequential gradient compression, gradient pressure holding, and fast deflation, supporting more portable ...
Run Ze Gao, Chen Xi Huang, Drew M. Werbowski, Jacqueline Mary Kormylo, Clark R. Dickerson, Carolyn L. Ren   +5 more
wiley   +1 more source