this article aims to review various modes of fracture toughness of resin composites. also, this study intends to review the papers on the fracture mode, namely “fractography”, under scanning electron microscopy finding fracture initiation site, and the effect of filler content on the fracture toughness of resin composites. it will also review the effect of aging on the fracture toughness of res...

Fracture-pore complexes, located at fault zones of Darriwilian carbonates, are the main exploration targets in Shunbei area, Tarim Basin. This article focuses on carbonate characteristics Lower Ordovician Well ShunbeiPeng1 (SHBP1), is sandwiched by two trending NW-SE deep-seated, strike-slip faults Shuntuoguole uplift. Based detailed core investigation and careful petrographic examination, rese...

background: nasal fracture is a common fracture due to trauma. gold standard method in diagnosis of nasal fracture is clinical examination and radiography is used in legal situation. recently, ultrasound is recommended as a noninvasive and simple method in diagnosis of nasal fracture. this study investigates the role of ultrasound in diagnosis of nasal fracture. methods: 126 cases with suspecte...

Active deformation in Alborz range is due to N-S convergence between Arabia and Eurasia. This paper provides geomorphic traces of regional deformation in NW Iran in order to characterize active faulting on major faults. Soltanieh and North Zanjan fault systems are involved in convergence boundary extent between South Caspian Basin and Central Iran. Soltanieh and North Zanjan faults are major re...

In this paper we first show that standard BP algorithm cannot yeild to a uniform information distribution over the neural network architecture. A measure of sensitivity is defined to evaluate fault tolerance of neural network and then we show that the sensitivity of a link is closely related to the amount of information passes through it. Based on this assumption, we prove that the distribu...

The squirrel cage induction motor is the most common means of converting electrical energy to mechanical energy. As such they form a very important part of modem industrial plants. Adverse service conditions may cause faults to develop within a motor that eventually result in the motor failing. If warning of an impending failure can be obtained, the motor can be scheduled for repair or replacem...

prompt detection and diagnosis of faults in industrial systems areessential to minimize the production losses, increase the safety of the operatorand the equipment. several techniques are available in the literature to achievethese objectives. this paper presents fuzzy based control and fault detection for a6/4 switched reluctance motor. the fuzzy logic control performs like a classicalproporti...

the most enigmatic problems with the nearly 200 salt domes pierced in the persian gulf and in the zagros mountain ranges (zmr) in southern iran, a unique morphology in the world, have been the matter of this study, which is based on a combination of field work, enhancement of satellite and aerial photographs etc. in the zmr, structural anomalies are frequently associated with similar facies dis...