Simulation of the Transition of Earthquake Rupture from Quasi-static Growth to Dynamic Propagation

2002 ◽  
pp. 2057-2066
Author(s):  
Eiichi Fukuyama ◽  
Chihiro Hashimoto ◽  
Mitsuhiro Matsu’ura
Keyword(s):  
Earthquake Rupture ◽  
Dynamic Propagation

Simulation of the Transition of Earthquake Rupture from Quasi-static Growth to Dynamic Propagation

2002 ◽  
Vol 159 (9) ◽  
pp. 2057-2066 ◽  
Author(s):  
E. Fukuyama ◽  
C. Hashimoto ◽  
M. Matsu'ura
Keyword(s):  
Earthquake Rupture ◽  
Dynamic Propagation

Spontaneous processes for nucleation, dynamic propagation, and stop of earthquake rupture

1992 ◽  
Vol 19 (12) ◽  
pp. 1189-1192 ◽  
Author(s):  
Bunichiro Shibazaki ◽  
Mitsuhiro Matsu'ura
Keyword(s):  
Earthquake Rupture ◽  
Dynamic Propagation

INSIGHTS INTO EARTHQUAKE RUPTURE AND RECOVERY FROM PALEOSEISMIC FAULTS

2016 ◽  
Author(s):  
Christie D. Rowe ◽  
◽  
W. Ashley Griffith ◽  
Catherine Ross ◽  
Benjamin Melosh ◽  
...  
Keyword(s):  
Earthquake Rupture

scholarly journals Toward a Self-Adaptive Cyberdefense Framework in Organization

SAGE Open ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 215824402098885
Author(s):  
Kuan-Jui Huang ◽  
Kuo-Huie Chiang
Keyword(s):  
Information System ◽  
Organizational Learning ◽  
Intelligent Agents ◽  
Coordination Mechanism ◽  
Learning Effects ◽  
Adaptive Model ◽  
Dynamic Propagation ◽  
The Future ◽  
Adaptive Framework ◽  
Self Adaptive

Organizations suffer more than ever from the inability to securely manage the information system, despite their myriad efforts. By introducing a real cyberattack of a bank, this research analyzes the characteristics of modern cyberattacks and simulates the dynamic propagation that makes them difficult to manage. It develops a self-adaptive framework that through simulation, distinctly improves cyberdefense efficiency. The results illustrate the discrepancies of the previous studies and validate the use of a time-based self-adaptive model for cybersecurity management. The results further show the significance of human and organizational learning effects and a coordination mechanism in obtaining a highly dependable cyberdefense setting. This study also provides an illuminating analysis for humans to position themselves in the collaborations with increasingly intelligent agents in the future.

scholarly journals Seismic velocity structure at the southern termination of the 2016 Kumamoto Earthquake rupture, Japan

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Yasuhira Aoyagi ◽  
Haruo Kimura ◽  
Kazuo Mizoguchi
Keyword(s):  
Fault Zone ◽  
Velocity Structure ◽  
Seismic Velocity ◽  
Earthquake Rupture ◽  
2016 Kumamoto Earthquake ◽  
Seismic Velocity Structure ◽  
Kumamoto Earthquake ◽  
Seismogenic Layer ◽  
The 2016 Kumamoto Earthquake ◽  
Tectonic Line

Abstract The earthquake rupture termination mechanism and size of the ruptured area are crucial parameters for earthquake magnitude estimations and seismic hazard assessments. The 2016 Mw 7.0 Kumamoto Earthquake, central Kyushu, Japan, ruptured a 34-km-long area along previously recognized active faults, eastern part of the Futagawa fault zone and northernmost part of the Hinagu fault zone. Many researchers have suggested that a magma chamber under Aso Volcano terminated the eastward rupture. However, the termination mechanism of the southward rupture has remained unclear. Here, we conduct a local seismic tomographic inversion using a dense temporary seismic network to detail the seismic velocity structure around the southern termination of the rupture. The compressional-wave velocity (Vp) results and compressional- to shear-wave velocity (Vp/Vs) structure indicate several E–W- and ENE–WSW-trending zonal anomalies in the upper to middle crust. These zonal anomalies may reflect regional geological structures that follow the same trends as the Oita–Kumamoto Tectonic Line and Usuki–Yatsushiro Tectonic Line. While the 2016 Kumamoto Earthquake rupture mainly propagated through a low-Vp/Vs area (1.62–1.74) along the Hinagu fault zone, the southern termination of the earthquake at the focal depth of the mainshock is adjacent to a 3-km-diameter high-Vp/Vs body. There is a rapid 5-km step in the depth of the seismogenic layer across the E–W-trending velocity boundary between the low- and high-Vp/Vs areas that corresponds well with the Rokkoku Tectonic Line; this geological boundary is the likely cause of the dislocation of the seismogenic layer because it is intruded by serpentinite veins. A possible factor in the southern rupture termination of the 2016 Kumamoto Earthquake is the existence of a high-Vp/Vs body in the direction of southern rupture propagation. The provided details of this inhomogeneous barrier, which are inferred from the seismic velocity structures, may improve future seismic hazard assessments for a complex fault system composed of multiple segments.

Research and Safety Design on the Scientific Research Project Management System Based on J2EE

2015 ◽  
Vol 743 ◽  
pp. 633-640
Author(s):  
Sheng Ju Yang ◽  
Shao Ting Shi ◽  
Jie Meng
Keyword(s):  
Project Management ◽  
Scientific Research ◽  
Fast Response ◽  
Gansu Province ◽  
Research Project ◽  
Project Management System ◽  
Dynamic Propagation ◽  
Scientific Research Project ◽  
J2ee Architecture ◽  
Series Of Functions

Starting from the introduction of the management of scientific research project, and then gives a detailed description based on J2EE architecture, the lightweight composite framework involving Spring, Struts and iBATIS and an iterative method is employed in project management. With a series of functions such as application, recommendation, processing, approval, assessment and management of scientific research project and so on, the system has the characteristics of easy maintenance, dynamic propagation and strong expansibility. Finally the safety of the system is discussed from two perspectives, namely its design and environment. Years’ of application in the management of scientific research project in Gansu Province has proved its good stability, fast response and high safety.

Sign in / Sign up

Export Citation Format

Share Document