Altered gravity load induced by spaceflight (microgravity) and centrifugation (hypergravity) is associated with changes in circadian, metabolic, and reproductive systems. Exposure to 2-g hypergravity (HG) during pregnancy and lactation decreased rate of mammary metabolic activity and increased pup mortality. We hypothesize HG disrupted maternal homeorhetic responses to pregnancy and lactation a...

Due to the construction technology of roller compacted concrete (RCC) gravity dams, there are many weak layers that have potential affect seismic performance dams. However, research on response and failure characteristics RCC dams considering their layered characteristic is still lacking. In this paper, zero-thickness cohesive element presented model mechanical behavior layers. An impacted beam...

According to the experience in construction of water conservancy and hydropower projects Mainland, RCC dam has two main advantages: rapid speed roller compacted concrete can realize early power generation, price fly ash is much lower than that cement, which reduce project cost. Tibet special geographical environment climatic conditions, generally characteristics “high altitude, low pressure, te...

The evolutions of practices of seismic slope stability analysis of earth embankment/dam are discussed in this paper. The basic concepts of various methods, salient features, advantages and limitations of each of them are elucidate. Methods for both stability analysis and deformation calculation are presented. Methods for calculation of deformation of post liquefaction stage are also briefed.

The effect of frequency content on the dynamic response of concrete gravity dams is investigated in this paper. Dams are one of the most complex structures to handle when there is dynamic analysis involved. One of the influential parameters on these structureschr('39') seismic response is the frequency content of the earthquakes. An index to represent frequency content, which represents frequen...

Regarding the importance of interaction effect in dynamic behavior a concrete dam and reservoir, process hydrodynamic wave propagation reservoir its effects on response gravity are examined this article by presenting new probabilistic model. For purpose, program has been written an APDL environment Ansys software capable analysis system models. The Monte Carlo method with LHS applied for model,...