This paper presents a sensorless system drive on primary flux oriented control (PFOC) and secondary flux oriented control (SFOC) for the linear induction motor (LIM) with taking into account end effect. Extended kalman filter (EKF) is applied to estimate LIM speed by measuring motor voltages and currents. In order to achieve desirable dynamic and robustness motor performance instead of traditio...

-While most aspects of subduction have been extensively studied, the process of subduction initiation lacks an observational foundation. The Macquarie Ridge complex (MRC) forms the Pacific-Australia plate boundary between New Zealand to the north and the Pacific-Australia-Antarctica triple junction to the south. The MRC consists of alternating troughs and rises and is characterized by a transit...

The escape structure in southwest Taiwan has long been discussed. counterclockwise rotation GPS ground motion is argued to be evidence of tectonic escape. However, events worldwide are always bounded by lithosphere-cutting strike-slip faults at the boundary lithospheric-scale rotating block, and these have not observed Taiwan. In this study, we propose that a thin-skinned deformation due open c...

Abstract The southwest Iberia margin is widely believed to have hosted the 1755 Great Lisbon earthquake and ensuing tsunami, one of most destructive natural events in European history. Here we combine geophysical data numerical tsunami modelling investigate source mechanism responsible for this event. We find that an intra-plate, lithospheric¬-scale thrust fault located at Horseshoe Abyssal Pla...

Attempts to measure the propulsive forces produced by swimming dolphins have been limited. Previous uses of computational hydrodynamic models and gliding experiments have provided estimates of thrust production by dolphins, but these were indirect tests that relied on various assumptions. The thrust produced by two actively swimming bottlenose dolphins (Tursiops truncatus) was directly measured...

GPS observations in Costa Rica from 1994-1997 reveal a complex pattern of motion consistent with the superposition of seismic cycle and secular plate margin deformation. In the south, velocity vectors are consistent with motion of the Panama Block plus postseismic deformation following the 1991 Limon earthquake, and interseismic strain due to partial locking of the Middle America Trench (MAT) t...

This paper aims to present a new neotectonic perspective concordant with the seismic activities in Turkey and surrounding regions. The structures have been re-evaluated mainly by using focal mechanism solutions high-resolution satellite (Google Earth) images. Southeast Anatolian Wedge explains thrust/blind thrust asymmetrical folding relationship SE Turkey, Syria, Northern Iraq. of Turkish-Iran...

The October, 1995 Mw 8.0 Jalisco subduction earthquake has provided a thorough geodetic observation of the coseismic subduction process. An 11 station regional GPS network located directly onshore of the rupture demonstrates consistent vertical subsidence verified by tide gauge data and southwest-directed extension, with measured displacements reaching I meter. Unusually shallow and non-uniform...

S U M M A R Y We present the evidence for an anomalous southwest-dipping slab in southern Mexico. The main evidence comes from a clear receiver function image along a seismic line across the Isthmus of Tehuantepec and is also supported by a previous global tomographic model. The slab dips at 35◦, is approximately 250 km in length and appears to truncate the Cocos slab at about 120 km depth. We ...

Tectonic features of the Kyushu-Ryukyu arc have been investigated in detail, on the basis of seismicity and focal mechanism of shallow to intermediatedepth earthquakes with magnitudes around and greater than 5.0. All shallow earthquakes in the Hyuga-nada region east of Kyushu are characterized by low-angled thrust faulting, which may be directly related to the underthrusting of the Philippine S...