Introduction: Among the many properties of chondrules, compound chondrules, two chondrules fused together, have been studied to gain clues as to what the environment that chondrules formed in was like [1,2]. Two methods have been proposed for forming compound chondrules: collisions among individual chondrules while they were plastic [1] and melting of porous aggregates on an already existing pr...

The kinematics of thin-walled closed cross section beams is studied by comparing the behavior of a closed section with an open section which differs from the former by a ”cut” on one side.

Mineral segmentation is an equally important and difficult task in the quantification of mineral composition. Difficulties come from process determining boundaries distinctive grains necessary for further analysis identification. Done by hand, very time-consuming higher accuracies are burdened with possible human fatigue factor. The presented method a fully automated solution to problem that us...