Results 11 to 20 of about 29,214 (264)

Determination of the northeast section of the Nanyuan–Tongxian fault in Beijing and research on its Quaternary activity

open access: yesDizhi lixue xuebao, 2023
The Nanyuan–Tongxian fault is the boundary fault between the Beijing depression and the Daxing uplift, also the primary seismic-controlling fault of the Beijing M \begin{document}$ 6{\dfrac{1}{2}}$\end{document} earthquake in 1665.
NIU Wenzhi   +8 more
doaj   +1 more source

Active Faults in Iberia

open access: yesJournal of Iberian Geology, 2012
Universitat de Barcelona ...
Martínez Díaz, José Jesús   +2 more
openaire   +4 more sources

Secondary Fault Activity of the North Anatolian Fault near Avcilar, Southwest of Istanbul: Evidence from SAR Interferometry Observations

open access: yesRemote Sensing, 2016
Strike-slip faults may be traced along thousands of kilometers, e.g., the San Andreas Fault (USA) or the North Anatolian Fault (Turkey). A closer look at such continental-scale strike faults reveals localized complexities in fault geometry, associated ...
Faqi Diao   +7 more
doaj   +1 more source

A Setup for Active Fault Diagnosis [PDF]

open access: yesIEEE Transactions on Automatic Control, 2006
A setup for active fault diagnosis (AFD) of parametric faults in dynamic systems is formulated in this note. It is shown that it is possible to use the same setup for both open loop systems, closed-loop systems based on a nominal feedback controller as well as for closed-loop systems based on a reconfigured feedback controller.
openaire   +2 more sources

Fluid-induced high seismicity in Songliao Basin of China

open access: yesEuropean Journal of Remote Sensing, 2020
In recent years, moderate earthquakes with a magnitude of about 5.0 have occurred along the Fuyu/Songyuan-Zhaodong fault frequently. This fault is the most seismic active fault in the Songliao Basin, even in the Northeast Seismic Region of China.
Jian Sheng   +4 more
doaj   +1 more source

Active Fault‐Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension

open access: yesShock and Vibration, 2021
In order to improve the ride comfort and handling stability of the vehicle and realize the recovery of vibration energy, an electromagnetic linear hybrid suspension actuator composed of linear motor and solenoid valve shock absorber is proposed. At the same time, a fault diagnosis and fault‐tolerant control strategy is designed to solve the system ...
Farong Kou   +4 more
openaire   +2 more sources

Discussion on the “Luanxian-Leting fault”

open access: yes地震科学进展, 2020
“Luanxian-Leting fault”is an inferred fault. Recent petroleum geophysical data reveals that the “Luanxian-Leting fault”does not exist in the east of Changli fault.
Wenbin Chen, Yisheng Song, Xiaojun Li
doaj   +1 more source

吉兰泰断陷盆地周缘断裂带气体释放及其对断层活动性的指示意义

open access: yesDizhen xuebao, 2019
为了研究吉兰泰断陷盆地周缘断裂带气体排放及其对断层活动性的指示意义,在盆地周缘4条活动断裂上布设了5条土壤气测量剖面和1条电磁测量剖面,观测了土壤气中Rn,Hg和CO2的浓度、释放通量和地电阻率,对各测量剖面进行了土壤化学组分分析,计算得到了断层活动性相对指数KQ。研究结果显示:土壤气体CO2和Rn受渗透性较低的粉砂土阻挡,主要沿结构破碎的断层上盘逃逸,并形成浓度高峰;吉兰泰盆地南缘土壤气Rn,Hg和CO2的浓度和释放通量最高,可能与盆地西南缘花岗岩中U和Ra的运移以及盆地南缘碳酸盐岩的分解有一定的关系。
Zhaofei Liu   +6 more
doaj   +1 more source

Constrained Active Fault Tolerant Control Based on Active Fault Diagnosis and Interpolation Optimization [PDF]

open access: yesEntropy, 2021
A new active fault tolerant control scheme based on active fault diagnosis is proposed to address the component/actuator faults for systems with state and input constraints. Firstly, the active fault diagnosis is composed of diagnostic observers, constant auxiliary signals, and separation hyperplanes, all of which are designed offline.
Kezhen Han   +3 more
openaire   +3 more sources

Controlling Factors Analyses of Sediment Dispersal From Source-to-Sink Systems of Lacustrine Rift Basin: A Case Study From Paleogene Shahejie-Dongying Formations of Nanpu Sag, Eastern China

open access: yesFrontiers in Earth Science, 2021
Tectonic activity not only shapes the basic stratigraphic framework of rift basins, but also profoundly affects the sediment dispersal in rift basins. In this study, analyses of heavy mineral assemblages in different periods demonstrate that there are ...
Jifeng Yu   +7 more
doaj   +1 more source

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