نتایج جستجو برای: cracked

تعداد نتایج: 3244  

Journal: :Compendium of continuing education in dentistry 2006
Jack D Griffin

Every practice has patients who complain of cold sensitivity and pain on biting while showing no obvious signs of irreversible pulpitis. After loading each cusp and fossa in a symptomatic quadrant and ruling out pulp and periodontal pathology, definitive treatment can be performed to alleviate the patient's symptoms in a consistent, conservative manner using esthetic computer-aided design/compu...

Journal: :Neuron 1996
David E. Clapham

fly's compound eye. Unlike many genetically identified proteins in this system, which are enzymes in the phos-Mayo Foundation Rochester, Minnesota 55905 phatidylinositol pathway, TRP and TRPL were originally presumed to be ion channels based on their putative It takes only one close look at a housefly to tell you six transmembrane-spanning topology and the phenotype of the associated trp mutant...

2013
JOHN HILLAS

An informal argument shows that common knowledge of rationality implies the iterative elimination of strongly dominated strategies. Rationality here means that players do not play strategies that are strongly dominated relative to their knowledge. We formalize and prove this claim. When by rationality we mean that players do not play strategies that are weakly dominated relative to their knowle...

2012

Middle-gate is located in Hasankeyf, Batman dating back to 1800 BC and is one of the important historical structures in Turkey. The ancient structure has suffered major structural cracks due to aging as well as lateral pressure of a cracked rock which is predicted to be about 100 tons. The existing support system was found to be inadequate to support the load especially after a recent rock fall...

2014
Jianjun Liu Zheming Zhu Bo Wang

The mechanical behavior of multicracks under compression has become a very important project in the field of fracture mechanics and rock mechanics. In this paper, experimental and numerical studies on the fracture property of three collinear cracks under compression were implemented. The specimens were a square concrete plate, and the cracks were made by a very thin film. The tests were conduct...

2014
S. Lecheb A. Nour A. Chellil H. Mechakra N. Hamad

The work involves develops attended by a numerical execution of the eXtend Finite Element Method premises a measurement by the fracture process cracked so many cracked plates an application will be processed for the calculation of the stress intensity factor SIF. In the first we give in statically part the distribution of stress, displacement field and strain of composite plate in two cases unc...

2015
Abdulbaset Ali Bing Hu Omar M. Ramahi

This work presents a real life experiment of implementing an artificial intelligence model for detecting sub-millimeter cracks in metallic surfaces on a dataset obtained from a waveguide sensor loaded with metamaterial elements. Crack detection using microwave sensors is typically based on human observation of change in the sensor's signal (pattern) depicted on a high-resolution screen of the t...

2011
ANDRZEJ KATUNIN Andrzej Katunin

A method for the identification of multiple cracks based on Discrete Wavelet Transform is presented. The analysis is provided on beams made of polymeric laminate. The estimation of the crack locations is based on the evaluation of natural modal shapes of pre-cracked beams. The modal shapes were estimated experimentally using laser Doppler vibrometry. The dynamic response of multi-cracked beams ...

2007
Ashkan Vaziri

Potential sensitivity of the buckling behavior of cracked composite cylindrical shells to service life cracking is explored by carrying out linear buckling analysis. Computational models of cracked composite cylindrical shells are developed by exploiting a special meshing scheme in which the element size is reduced incrementally from the element size employed in the uncracked region by approach...

2002
J. Kim S. Sohn K. Park W. Yoon D. J. Ewins

In this paper, a new tool for crack detection in operating rotors based on wavelet theory is described. Customarily, two approximate methods of spectral analysis, i.e. ShortTime Fourier transform and Wigner distribution, have been used to analyse the vibration components of cracked rotors during run-up or run-down periods. However, for both methods, high resolution cannot be achieved simultaneo...

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