In this paper, vibration of the protein microtubule, one of the most important intracellular elements serving as one of the common components among nanotechnology, biotechnology and mechanics, is investigated using stress and strain gradient elasticity theory and orthotropic elastic shells model. Microtubules in the cell are influenced by internal and external stimulation and play a part in con...

Effect of air cushion layer right before impact of a rigid body onto water surface has been investigated in this paper. The study is mainly focused on evaluation of cushioning pressure and the resulting free surface elevation. The air flow is assumed to be an irrotational flow which is governed by Laplace equation. The air problem and the resulting response of the water free surface are suppose...

We analyze the geometry of domain Markov half planar triangulations. In [5] it is shown that there exists a one-parameter family of measures supported on half planar triangulations satisfying translation invariance and domain Markov property. We study the geometry of these maps and show that they exhibit a sharp phase-transition in view of their geometry at α = 2/3. For α < 2/3, the maps form a...

Charged axially symmetric solution of the coupled gravitational and electromagnetic fields in the tetrad theory of gravitation is derived. The metric associated with this solution is an axially symmetric metric which is characterized by three parameters " the gravitational mass M, the charge parameter Q and the rotation parameter a ". The parallel vector fields and the electromagnetic vector po...

A general purpose Gamma Box Counter is a large scale, high-resolution segmented gamma-ray nondestructive assay system for the assay of nuclear waste containers covering a wide range of composition, mass, and geometry. In order to accurately quantify the activity of the radionuclides in a waste container, a correction for the gamma-ray self-attenuation in the waste matrix must be estimated and a...

Tubular geometry construction as a reason for new revision of the space-time conception. Abstract The tubular geometry (T-geometry) is a generalization of the proper Eu-clidean geometry, founded on the property of σ-immanence. The proper Eu-clidean geometry can be described completely in terms of the world function σ = ρ 2 /2, where ρ is the distance. This property is called the σ-immanence. Su...

Tubular geometry construction as a reason for new revision of the space-time conception. Abstract The tubular geometry (T-geometry) is a generalization of the proper Eu-clidean geometry, founded on the property of σ-immanence. The proper Eu-clidean geometry can be described completely in terms of the world function σ = ρ 2 /2, where ρ is the distance. This property is called the σ-immanence. Su...