in this work, we define fuzzy soft ($fs$) matrices and theiroperations which are more functional to make theoretical studies inthe $fs$-set theory. we then define products of $fs$-matrices andstudy their properties. we finally construct a $fs$-$max$-$min$decision making method which can be successfully applied to theproblems that contain uncertainties.

A large number of cyclic torsional shear tests on saturated soft clay under unconsolidated undrained condition have been carried out. The changing law between accumulative generalized shear strains vs. failure numbers has been analyzed and a cyclic shear strength curve has been received based on cyclic torsional shear tests. According to the test results, the criterion of saturated soft clay is...

an object $x$ of a category $mathbf{c}$ with finite limits is called exponentiable if the functor $-times x:mathbf{c}rightarrow mathbf{c}$ has a right adjoint. there are many characterizations of the exponentiable  spaces in the category $mathbf{top}$ of topological spaces. here, we study the exponentiable objects in the category $mathbf{stop}$ of soft topological spaces which is a generalizati...

Fuzzy logic techniques have been widely used in civil and earthquake engineering applications in the past four decades. However, no thorough research studies were conducted to use them for deriving attenuation relationships for peak ground accelerations (PGA). This paper is an attempt to fill this gap by employing a fuzzy approach with fuzzy sets for earthquake magnitude and distance from sourc...

equations forN-electron Coulomb systems with quasirelativistic kinetic energy √ −α−2Δxn α−4 − α−2 for the nth electron. Moreover, we prove existence of a ground state. The results are valid under the hypotheses that the total charge Ztot of K nuclei is greater than N − 1 and that Ztot is smaller than a critical charge Zc. The proofs are based on a new application of the Fang-Ghoussoub critical ...

We discuss the first two months of low altitude atmospheric turbulence at the Antarctic site of Dome C. Using a mini-SODAR, the first 890m of the atmosphere were sampled. It was found that between 9 Feb and 17 Apr 2003, the turbulence was concentrated below a 120m boundary layer that exhibited a clear diurnal cycle. This boundary layer height is less than half as thick as that at the South Pole...

The perfect site for astronomical interferometry would be one where the wind speeds throughout the atmosphere were very low, there was little atmospheric turbulence (especially at high altitudes), the seismic activity was negligible and the climate very stable. Perhaps surprisingly, these conditions describe the Antarctic plateau perfectly. At Dome C, for example, the average wind speed at grou...

chronic granulomatous disease (cgd) is a rare primary immunodeficiency disease. although the most affected patients are diagnosed in childhood, there are several reports of the disease presenting in adult patients. here we present a 40 years old man who was admitted in hospital due to respiratory symptoms and ground glass pattern in high resolution computed tomography of lung. open lung biopsy ...

In this paper, a method for predicting the landing stability of lunar lander by classification map is proposed, considering soft soil characteristics and slope angle surface. First, condition in terms safe (=stable), sliding (=unstable), tip-over (=statically unstable) possibilities was checked dropping onto flat surfaces through finite-element (FE) simulation according to angle, friction coeff...

Evaluation of the interaction between a new and the existing underground structures is one of the important problems in urban tunneling. In this work, using FLAC3D, four numerical models of single- and twin-tube tunnels in urban areas are developed, where the horizontal distance between the single- and twin-tube tunnels are varied. The aim is to analyze the effects of the horizontal dista...