The Rayleigh hypothesis is employed to solve the forward problem of scattering of a known, arbitrary acoustic wave from a body of revolution immersed in a shallow body of water. The acoustic wavefields obtained in this way are then employed as simulated data for the inverse problem of the determination of the (unknown) size, shape and depth of the immersed body, which is known to be acousticall...

this article is an attempt to study two historical junctures in the history of iran: from the qajar era to the mashrooteh movement; and from the pahlavi era to the islamic revolution. the two junctures have been studied from different perspectives; however, this article concentrates only on how political legitimacy emerged and diminished in the the above-mentioned revolutions. the basic questio...

Problems of geometric probability for an arbitrary convex body of resolution in the euclidean space E3 has been investigated in [1]. In [9] Buffon’s problem is solved for a lattice of right-angled parallelepipeds in the 3-dimensional space. In this note we want to use the results in [5] for to solve problems of intersection for a particular lattice that we describe: the fundamental cell C0 of t...

To solve the electromagnetic scattering problem for homogeneous dielectric bodies of revolution (BOR), a fast inhomogeneous plane wave algorithm is developed. By using the Weyl identity and designing a proper integration path, the aggregation and disaggregation factors can be derived analytically. Compared with the traditional method of moments (MoM), both thememory and CPU time requirements ar...

For a sufficiently slender axially symmetric body placed in a uniform stream, only convectively unstable modes are found in previous experiments. This work imposes theoretically and computationally a pair of most unstable helical modes, symmetrically and asymmetrically. The Reynolds stress modification of the developing laminar mean wake flow is modified into an elliptic-like cross section for ...

objectives: the present research has been carried out to investigate the effectiveness of group mindfulness-based cognitive therapy on modification of body image and quality of life in women with breast cancer undergoing mastectomy.  materials: this research is a quasi-experimental study (pretest-posttest with control). in this clinical trial, 50 voluntary patients who had undergone mastectomy ...

background:  the prevalence of obesity in the elderly is increasing worldwide. obesity greatly impacts quality of life(qol). the present study aimed to investigate the association between obesity and qol among the elderly, in tehran, iran. methods:  this cross-sectional study (observational) was conducted in 2014 in tehran, iran. a total of 421 elderly people aged ≥ 60 years old were recruited ...

The history of science can often be characterized as a sequence of revolutions and reactions. The birth of cognitive science can be traced to the cognitive revolution of the mid-20th century, which was a reaction against the behaviorist revolution of the early 20th century. Behaviorism in turn was a reaction to the introspectionist tradition of the late 19th and early 20th centuries. More recen...