Sandstone petrography, zircon and apatite U-Pb geochronology, geochemistry of Early Cretaceous siliciclastic turbidites interbedded with basalt (Chivillas Formation) in the southern Sierra Madre Oriental, Mexico, indicate local provenance from westerly basement sources. Three main detrital populations were observed both geochronology: Meso–Neoproterozoic, Carboniferous–Permian, Cretaceous. Apat...

Pantograph-catenary arc fault is the primary factor threatening stability of power transmission for high-speed railway. The motion characteristics pantograph-catenary under low air pressure and strong airflow significantly different from case atmospheric pressure. In this paper, an experimental platform was built to investigate root position-time column longitudinal drift height-time characteri...

The Rat Island earthquake of February 4, 1965 (origin time 05h 01m 21.8s, h = 40 km), is one of the largest earthquakes recorded in recent years. On the basis of the radiation patterns and the amplitudes of the great circle Rayleigh and Love waves, the earthquake is found to have the following characteristics: fault plane dip, 18ø; fault plane dip direction, N19øE; rupture propagation direction...

The present research aims to explicate the tectonics of northwest Himalayas, Pakistan, based on integrated gravity, magnetic and earthquake data. raw gravity data were processed, seven isoanomaly maps prepared for qualitative interpretation, whereas a model was along selected profile quantitative interpretation. local have also been used identify various seismogenic layers in subsurface underst...

Fault identification in Photovoltaic (PV) array is a contemporary research topic motivated by the higher penetration levels of PV systems recent electrical grids. Therefore, this work aims to define an optimal Machine learning (ML) structure automatic detection and diagnosis algorithm for common faults, namely, permanent (Arc Fault, Line-to-Line, Maximum Power Point Tracking unit failure, Open-...

[1] The >300-km long, east striking Lapeiquan fault lies in the eastern Altyn Tagh range along the northern margin of the Tibetan Plateau and was interpreted as a north dipping thrust in early studies. However, our mapping shows that the fault is a south dipping normal fault juxtaposing Archean-Proterozoic gneisses beneath an early Paleozoic volcanic and sedimentary sequence. Its dip angle vari...

This paper reviews ground fault protection and detection methods for distribution systems. First, we review and compare medium-voltage distribution-system grounding methods. Next, we describe directional elements suitable to provide ground fault protection in solidlyand lowimpedance grounded distribution systems. We then analyze the behavior of ungrounded systems under ground fault conditions a...

Abstract Current method and voltage are two full compensation arc suppression control algorithms commonly used for single-phase grounding faults in the distribution network. The current has a good effect under small transition resistance, while large resistance. existing research focuses on principle implementation of method, but there is less applicable boundary comparative analysis these meth...

An analytical solution is presented for scattering nonplanar SH waves emanating from a fault source using lined tunnel. The tunnel assumed to be an annular elastic solid in half-space. A simplified circular arc model employed represent the wave source. By means of separation variables method, all fields are given terms function series with unknown coefficients. Taking advantage method images, z...

Based on the interpretation of 2D seismic profiles integrated with surface geological investigations, a mechanism responsible for formation large scale normal fault zone has been proposed. The fault, here referred to as Rycerka Fault, predominantly dip-slip component detachment located at base Carpathian units. developed due an anticlinal stack within Dukla Unit overlain by Magura Units. Stacki...