In the Red Sea, two neighboring deep-sea brine pools, Atlantis II and Discovery, have been studied extensively, and the results have shown that the temperature and concentrations of metal and methane in Atlantis II have increased over the past decades. Therefore, we investigated changes in the microbial community and metabolic pathways. Here, we compared the metagenomes of the two pools to each...

Numerical simulation of tracer testing data is conducted based on hydrogeology parameters inferred from pressure interference data. By incorporating both of pressure interferences and tracer testing data, pertinent values of average fracture spacing and rock-matrix permeability can be estimated. Relatively good match of tracer return curves are obtained. It is necessary to assign very small fra...

Aims Prediction of trabecular fracture zone is a wide challenge not yet solved. Some in-vitro studies pointed out the importance of local variation of the framework for the global behavior of the whole trabecular structure [1-4]. Researchers agree that the identification of the weakest link in the trabecular framework can lead to the prediction of the fracture zone, first, and of the failure ev...

We study fracture of notched samples made of quasi-brittle, polyphase materials like rock, concrete or ceramics. The fracture demonstrates the size effect during loading. This means that a full-size sample made of such a material exhibits different fracture behaviour than a laboratory-size sample. The effect is explained by the existence of an extended zone of distributed defects and cracks (pr...

Vision-based semantic segmentation of waterbodies and nearby related objects provides important information for managing water resources handling flooding emergency. However, the lack large-scale labeled training testing datasets water-related categories prevents researchers from studying issues in computer vision field. To tackle this problem, we present ATLANTIS, a new benchmark objects. ATLA...

The influence of loading rate (crosshead speed) on the fracture process of bluntly notched samples of pearlitic steel under hydrogen environment is analyzed in this paper. Results indicate that the location of the zone where fracture initiates (fracture process zone) in pearlitic steel samples with a blunt notch directly depends on the loading rate or crosshead speed. For slow testing rates, su...

fast fracture is one of the major failure modes in brittle polymers. generally, crack growth in these polymers may occur under combined tensile-shear loading. however, the fracture test data reported previously for some dental restorative resins can not be predicted by using the available fracture criteria.in this paper, a modified fracture criterion is used for estimating the fracture load for...