introduction: until now, many models have been presented for optical study of the human eye. in recent years, surgery on the anterior section of the eye (such as cataract and photo-refractive surgery) has increased, so a study on the optics of the eye and evaluation of vision quality has become more important. material and methods: in this article, some of these models are considered. they incl...

Steering assist system controls the force transfer behavior of the steering system and improves the steering probability of the vehicle. Moreover, it is an interface between the diver and vehicle. Fault detection in electrical assisted steering systems is a challenging problem due to frequently use of these systems. This paper addresses the fault detection and reconstruction in automotive elect...

The Amazonian Craton (AC) is a Pre-Cambrian tectonic segment that extends over 4.3 × 105 km2 at the northern portion of South American Platform. Phanerozoic sedimentary basins cover most edges AC and sparse occurrences Precambrian rocks may aid definition its extension. One these volcano-plutonic outcrop in Serra dos Magalhães region, which relates to Uatumã Magmatism, an expressive Orosirian m...

Northwest of Syria is part of one of the very active deformation belt on the Earth today. This area and the western part of Syria are located along the great rift system (Left-Lateral or AfricanSyrian Rift System). Those areas are tectonically active and caused a lot of seismically events. The AL-Ghab Graben complex is situated within this wide area of Cenozoic deformation. The system formed, i...

Offshore structures such as jacket platforms have to inevitably be designed against  sever  environmental actions. In seismically active areas these structures also become susceptible to earthquake excitations. Strong ground motions recorded  in recent earthquakes, including the 1995 Kobe, Japan, 1999 Chi-chi, Taiwan and 1999 Kocaeli, Turkey earthquakes, revealed that the dynamic motions in nea...

Northwest of Syria is part of one of the very active deformation belt on the Earth today. This area and the western part of Syria are located along the great rift system (Left-Lateral or AfricanSyrian Rift System). Those areas are tectonically active and caused a lot of seismically events. The AL-Ghab Graben complex is situated within this wide area of Cenozoic deformation. The system formed, i...

A reliability assessment framework is presented for small unmanned aerial vehicles. The analysis considers several candidate architectures with different numbers of controllable surfaces and servos. It is assumed that a servo fault detection algorithm is available and affected by known rates of false alarms and missed detections. The aircraft flight envelope is analyzed to determine the fault l...

This paper presents a new method of automatic lineament extraction which includes the removal of the ‘artefacts effect’ which is associated with the process of raster based analysis. The core of the proposed Multi-Hillshade Hierarchic Clustering (MHHC) method incorporates a set of variously illuminated and rotated hillshades in combination with hierarchic clustering of derived ‘protolineaments’...

The main focus of this paper is fault-tolerant control systems (FTCSs) for unmanned aerial vehicles (UAVs). The goals are to develop an Automatic-Flight Control System (AFCS)[8], based on fault detection and isolation (FDI) and a reconfiguration mechanism to accommodate them [7]. This paper describes a design approach of Model Predictive Control (MPC) with a linear internal model to achieve a l...