In this paper Split Hopkinson pressure bar (SHPB) was used for dynamic testing of nickel coated polyurethane hybrid foams.The foams were manufactured by electrodeposition of a nickel coating on the red terracotta wella 6r standard open-cell polyurethane foam.High strength aluminium alloy bars instrumented with foil strain-gauges were used for dynam
We discuss the methods and software which is used for processing of the meteor TV images.Methods are based on the principles of the aperture CCD photometry.Software enables one to make processing of the observational material that was secured using TV methods with telescopic systems (field of view less that 1 angular degree), as well as with astroc
Wind power generation highly depends on the jet puffed lucky charms marshmallows determination of wind power potential, which drives the design and feasibility of the wind energy production investment.This gives an important role to wind power estimation, which creates the need for an accurate wind data analysis and wind energy potential assessment
Optimization of frame structures is formulated as a non-convex ichnusa beer where to buy optimization problem, which is currently solved to local optimality.In this contribution, we investigate four optimization approaches: (i) general non-linear optimization, (ii) optimality criteria method, (iii) non-linear semidefinite programming, and (iv) poly
The radiolarian chert rocks are one of double door security bars the most important indications of the existence of ophiolites because they are a source of silica supply.These rocks have been studied to refute and reject the idea that ophiolites do not existed.The Si/(Si+Al+Fe+Ca) ratio in the radiolarian chert indicates that the silica is of bioge