Results 21 to 30 of about 5,411,122 (304)

B-Valued free convolution for unbounded operators [PDF]

Indiana University Mathematics Journal, 2017
Several small errors corrected. Streamlined proofs.
openaire   +3 more sources

基于经验模型分析2018年2月台湾花莲地震序列特征及其前震的成因机制

Dizhen xuebao, 2020
利用地震学的三个经典经验模型（古登堡-里克特定律、修正的大森定律和巴特定律）和描述前震活动的Dieterich前震模型对2018年2月中国台湾花莲地震序列的特征进行了分析。将该地震序列分为ML5.5前震序列、ML5.5余震序列和ML6.0余震序列等3段子序列进行研究，结果显示：利用古登堡-里克特定律得到的ML5.5余震序列和ML6.0余震序列的b值近似为1，ML5.5前震序列的b值近似为0.5；利用修正的大森定律得到的ML5.5余震序列和ML6.0余震序列的p值近似为0.9；利用修正的巴特定律得出ML5.
Yuancheng Shang, Baoping Shi
doaj   +1 more source

Spatial Temporal Condition of Recent Seismicity In The Northern Part of Sumatra

Elkawnie: Journal of Islamic Science and Technology, 2021
: The condition of stress and recent seismicity in the seismic-prone area can be statistically analyzed with the Gutenberg-Richter relation (Log N = a-bM).
Inna Nurana, Andrean Vesalius Hasiholan Simanjuntak, Muksin Umar, Djati Cipto Kuncoro, Syamsidik Syamsidik, Yusran Asnawi   +5 more
doaj   +1 more source

The magnitude distribution of earthquakes near Southern California faults [PDF]

, 2011
We investigate seismicity near faults in the Southern California Earthquake Center Community Fault Model. We search for anomalously large events that might be signs of a characteristic earthquake distribution.
Alderson, David, Doyle, John, Page, Morgan T.   +2 more
core   +2 more sources

Characterizing Earthquake Source Parameters and b Value Variations in Subduction and Fault Segments: Implications for Seismic Hazard Analysis

Journal of Mathematical and Fundamental Sciences
Earthquake sources in Aceh have distinct characteristics. Understanding the seismic characteristics of each earthquake source is crucial for comprehending earthquake cycles and assessing seismic hazards.
Abdi Jihad, Vrieslend Haris Banyunegoro, muksin umar, marwan ramli, Syamsidik Syamsidik, yunita idris, Andi Azhar Rusdin   +6 more
doaj   +3 more sources

Seismicity and 3-D body-wave velocity models across the Hengill geothermal area, SW Iceland

Frontiers in Earth Science, 2022
We image shallow crustal structures and analyze seismicity patterns in the Hengill high-enthalpy geothermal area in SW Iceland, exploiting a temporary densification of the seismic network 2018 to 2020. Using a subset of 6,300 high-quality manually picked
Anne Obermann, Sin-Mei Wu, Thorbjörg Ágústsdóttir, Alejandro Duran, Tobias Diehl, Pilar Sánchez-Pastor, Sigridur Kristjansdóttir, Sigridur Kristjansdóttir, Vala Hjörleifsdóttir, Stefan Wiemer, Gylfi Páll Hersir   +10 more
doaj   +1 more source

Identifying the Crack Nature Using b-Value Acoustic Emission Signal Analysis [PDF]

, 2020
Concrete is an important constituent of structures. The strength performance of the concrete decrease due to several factors. Concrete suffers from deterioration at a later stage.
Mohd Zuki, Sharifah Salwa, Saiful Bahari, Miera, Shahidan, Shahiron, Shukri, Mohammed   +3 more
core  

One decade of b-value variations from volcano-tectonic seismicity as an early indicator of episodes of crisis in a volcano: the case of Copahue, Southern Andes

Frontiers in Earth Science, 2023
Volcanoes can enter in episodes of unrest, which might end later in an eruption, with little warning. They are normally produced due to the inner dynamics of the volcano, but can also be triggered by external earthquakes.
Cristian Farías, Jonathan Lazo, Daniel Basualto , Marcela Saavedra, Felipe Muñoz-Quiroz, Lucas Zúñiga-Urrea, Rodrigo Martínez-Bravo, Ian Huentenao-Inostroza, Ramón Sáez-Opazo   +8 more
doaj   +1 more source

Werner states and the two-spinors Heisenberg anti-ferromagnet [PDF]

, 2005
We ascertain, following ideas of Arnesen, Bose, and Vedral concerning thermal entanglement [Phys. Rev. Lett. {\bf 87} (2001) 017901] and using the statistical tool called {\it entropic non-triviality} [Lamberti, Martin, Plastino, and Rosso, Physica A ...
A. Plastino, A.R. Plastino, Anteneodo, Arnesen, Beck, Bennett, Berman, Calbet, Grosse, J. Batle, Kullback, Lamberti, Lamberti, Lin, López-Ruiz, M. Casas, Martin, Ott, Popescu, Popescu, Rao, Rosso, Shiner, Werner, Williams   +24 more
core   +2 more sources

Large earthquakes are more predictable than smaller ones

Seismica
Large earthquakes have been viewed as highly chaotic events regardless of their magnitude, making their prediction intrinsically challenging.
Patricio Venegas-Aravena, Davide Zaccagnino   +1 more
doaj   +1 more source