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Critical distance is, in acoustics, the distance at which the sound pressure level of the direct sound D and the reverberant sound R are equal when dealing with a.
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For example, the composition Blues in O uses the oud to perform a blues piece with microtonal and odd-meter embellishment to complicate the sound. Wartanian attributes inspiration for this project to his teachers, oudist Ara Dinkjian and guitarist Miroslav Tadic, who have expanded possibilities for folk traditions in their own pathbreaking careers. Since completing his first album Pushkin Street , Wartanian has kept busy with numerous ventures in music and beyond. On the centennial of the Armenian Genocide, Raffi created a documentary about a concert in Istanbul commemorating the massacres on April This is an open access article distributed under the terms of the Creative Commons Attribution License 4.

Critical Distance #3 :: Future Architecture

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Abstract: A two-parameter constraint-based fracture mechanics approach is used to explain the effect of the constraint on the apparently anomalous behavior of short fatigue cracks. The different levels of stress constraint are quantified by the T-stress, and microstructurally as well as mechanically short cracks are discussed.

Short cracks generally behave more sensitively to the constraint than the long ones.

A review on the application of the theory of critical distance towards concrete

It is shown that in most cases, the existence of short cracks goes hand in hand with an intrinsic loss of the constraint, which contributes to a decrease of their fatigue threshold values and accelerates their growth. In this paper, the above effect is quantified and conclusions concerning the applicability of the fracture mechanics parameters and approaches to the estimation of the residual fatigue life of structures are discussed.

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Abstract: In this research, fatigue behaviour of Ti-6Al-4V alloy was investigated for smooth and notched specimens with stress concentration factor K t 3. This investigation was conducted for various diameter bars having different ultimate strength. Notch sensitivity data was compared with those of steels. The result indicated that the presence of notch in this alloy has a different amount of sensitivity when the notch specimens were subjected to high cycle fatigue HCF and low cycle fatigue LCF tests.

The notch sensitivity of this alloy was shown generally to be much lower than steel alloys with similar ultimate strength values. Therefore,considering the low sensitivity to notch of this alloy, can be recommended for applications with the presence of notch such as biomedical application. Abstract: FEM linear numerical analysis of stress distribution demonstrated that the model Zappalorto and Lazzarin for analysed V-hole ended notch, relatively correctly predicts the stress distribution at the tip of the notch, especially for small angles of opening.

The maximum levels of hoop stress and a tangential for load Mode II strongly dependent on the radius of the notch.