Sliding on ice surface.

Ice sliding games

This paper deals with sliding games, which are a variant of the better known pushpush game. On a given structure (grid, torus...), a robot can move in a specific set of directions, and stops when it hits a block or boundary of the structure. The objective is to place the minimum number of blocks such that the robot can visit all the possible positions of the structure. In particular, we give th...

Grain Boundary Sliding in Ice

It is well known that grain boundary processes intercrystdline sliding and grain boundary migration make an important contribution to high temperature deformation of polycrystalline materials, particularly for metals. More recently, these processes have been correlated with the atomic structure of the boundaries. Our goal is to study sliding and migration of ice boundaries, with respect to temp...

Sliding heavy stones to the Forbidden City on ice.

Why Ice? From ancient Chinese literature, Li et al. (1) learned that the Large Stone Carving (>300 tons) was transported to the Forbidden City on a wooden sledge that was hauled by men across an icy road, during the period between the winter solstice (December 22 ± 1 d) and late January when the average temperature in Beijing at the time was found to be −3.7 ± 0.5 °C. Although a detailed accoun...

Microbial abundance in surface ice on the Greenland Ice Sheet

Measuring microbial abundance in glacier ice and identifying its controls is essential for a better understanding and quantification of biogeochemical processes in glacial ecosystems. However, cell enumeration of glacier ice samples is challenging due to typically low cell numbers and the presence of interfering mineral particles. We quantified for the first time the abundance of microbial cell...

Ice Growth on Sea Surface and Drift of Ice