The paper presents the results of researches regarding the achievement of new chisel-like devices and machines intended for the basic tillage of the soil on slopes. The combined machine supplied with ...chisel devices, fertilization equipment for solid fertilizers and devices for the size degradation of the soil, intended to work in aggregation with caterpillar tractors for slopes, ensures an increased work quality and work capacity - by minimum 1.3 ha/shift as compared to the plough PP-3-30 etc. As the machine has a generator of forced vibrations and chisel devices in aggregation with the tractor U-650 M, it leads to a reduction of the traction power by maximum 400 daN, the reduction of the fuel consumption by 12-18% and a growth of the work quality and the work capacity of the aggregate
The article is presenting the art project Semne cusute (Sewn Signs), focusing on on traditional embroidery’s patterns’ revival, and launched in 2012. It has already reached a community of 44,000 ...members. It is an enterprise that brings together cultural and artistic actions, embedded as heritage project. During all these years Semne cusute’s activity has been presented to the public by means of exhibitions, and educational workshops. The members of the community embroider to emphasize the need to preserve and teach ancient symbols, but also to coin their country (Romania) on the international map of luxury embroidery, responsible fashion, and European heritage.
In the rigid body kinematics, the position of the mobile frame in relation to the fixed frame is given by the base-change matrix. The elements of this orthogonal matrix are given by the Euler’s ...angles. This paper establishes the reverse link relations between the Euler’s angles and the elements of the base-change matrix (directional cosines).
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