abstract surface soil shear strength is an effective parameter in soil erosion and runoff modeling, and known as soil erodibility index. this study was conducted to investigate and predict soil shear strength in central zagros region using multiple linear regressions (mlr). the study site was selected in rangeland and degraded-rangeland landuse with an area of 23562 ha. based on the maps of geo...

the principal effects of mass degradation on polymer matrix composites (pmcs) are the decay of mechanical properties such as strength, elongation, and resilience. this degradation is a common problem of the pmcs under thermal cycling conditions. in this article, composite degradation was investigated by measurement of total mass loss (tml) using the taguchi approach. thermal cycling tests were ...

There are several types of metal-based devices conceived as dampers for the seismic energy absorber whereby damages to the major structural components could be minimized for both new and existing structures. This paper aimed to develop and evaluate structural performance of slit circular shear panel damper for passive seismic energy protection by inelastic deformation. Structural evaluation was...

Hybrid-layer degradation occurs because of acidic properties of currently used adhesive systems. Titanium tetrafluoride couples with tooth surface, and titanium compounds are not substituted. Caffeic acid phenethyl esther inhibits endogenous matrix metalloproteinases that cause hybrid-layer degradation. It was hypothesized that titanium tetrafluoride and caffeic acid phenethyl esther applicatio...

Soil-structure frictional resistance is an important parameter in the design of many foundation systems. The soil-structure interface area responsible for load transferring from structure to surrounding soil. mobilized shaft axially loaded, long slender pile embedded dense, dry sand experimentally and numerically analyzed when subjected pullout force. Experimental setup including instrumented m...

The influence of the microstructural geometry on behavior porous media is widely recognized, particularly in geomaterials, but also biomaterials and engineered materials. Recent advances imaging techniques, such as X-ray microcomputed tomography, modeling make it possible to capture exact morphometry microstructure with high precision. However, most existing continuum theories only partially ac...