Honglianghe River section of Qinghai Tibet Railway and Danghe River section of Dunhuang Golmud Railway were selected as the typical representatives of high- and low-altitude sand hazard sections, respectively, to understand the sand hazard law of different-altitude railway sections.
Such data are highly useful to understand the sand production behavior.
But from what I understand, oil sands are higher, and profits in the Middle East are far lower.
To better understand human anti-sand fly salivary antibody presence based on differential exposure to wild P. papatasi sand flies, six sites were selected as collection points for human host peripheral blood samples.
Here, we review a previous model of traffic flow and compare it with the present model in order to understand the relation between sand flux and the state of sand transportation on starved beds.
Therefore, this study aims at investigating the interactions between oil and sand to further understand the detachment process between oil and sand in a flotation process under various conditions including pH, temperature, sand particle size and wettability.
To understand the effects of sand for the Sandman, experiments were done with twelve types of sand, such as splashing, launching it at stuntmen, and pouring it over ledges.
"At some point, we have to get our heads out of the sand and understand that," he said.
"At some point we have got to get our head out of the sand and understand Iraq is one part of a far bigger picture right across the region.
He seemed to understand a lot about sand mining, but he was reluctant to answer too many of my questions.
