A research program was conducted on different clay-bearing rocks selected from the Ilam, Sarpol-e Zahab and Tajarak regions (Iran) to predict their slaking characteristics. The new durability apparatus (nested mesh drums) separates disintegrated particles varying from > 25.4 to < 2 mm as the drums were rotated. On the basis of the particle size distribution, the disintegration ratio (DR) was us...

In article number 2000688, Lujun Huang, Lin Geng, and co-workers comprehensively review the smart multiscale architecture superior performance of titanium matrix composites. Multiscale discontinuously reinforced composites inspire coordinated strengthening mechanisms at different scales. This design method gives rise to lightweight materials with high strength, good ductility, high-temperature ...

Here, we demonstrate that Cobalt/cobalt oxide core-shell nanoparticles integrated on nitrogen-doped (N-doped) three-dimensional reduced graphene oxide aerogel-based architecture (Co/CoO-NGA) were synthesized through a facile hydrothermal method followed by annealing treatment. The unique endurable porous structure could provide sufficient mass transfer channels and ample active sites on Co/CoO-...

In exploring the evolution of Iranian architecture from prototypes to the present day, Qajar architecture is an important part of Iranian architecture history. The importance of this era's architecture is because large changes in conceptual and physical context occurred slowly in Iranian architecture during this time. These changes, especially from the Nasserian period (the second Qajar era), h...

the political and social system involved in the limbo between tradition and modernity of the qajar era caused widespread and quick developments in iranian culture, art, and architecture as well as a challenge between tradition and modernity. relatively numerous palaces built in this era were signs of greatness and distinction-seeking of the qajar kings and aristocrats, who embraced all transfor...

corrosion makes huge economic and ecologic damage all over the world. biologic corrosion of sewer pipes is considered as a serious limitation in economic perspectives. to prevent biologic corrosive damage, lining techniques can be applied by materials and aggregate resistant to attack bacterially in sewer pipes. the role of bacteria is that they convert sulfur compounds into sulfuric acid which...

In order to obtain a more controlled durability and long-term performance of concrete structures in chloride containing environment special care is needed in the design phase of reinforced concrete structures. The recent development of probability-based procedures has proven to give a more realistic basis for both durability design and condition assessment of reinforced concrete structures. Alt...