International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

This report identifies the main objectives and responsibilities of the operating organization for the selection, qualification and training of personnel for new and existing nuclear power plants to establish and maintain a high level of competence of personnel and to ensure safe operation of the nuclear power plant. The publication can also be used as a recommendation for the recruitment, training and qualification of personnel for nuclear installations other than nuclear power plants.

This work implements for the first time a dimensional qualification procedure for an open access 3D printer, the authors propose a new methodology to measure the prototype part as a mean to achieve the qualification procedure. Experimental results are compared with the specifications of the designer from a Fused Deposition Modelling (FDM) 3D printing. The quality of the machine recommended by the manufacturer and data are used to obtain its qualification. Then, this work aims to evaluate the quality of the machine through a comparison between the design’s data and the measurements taken from the prototype part (the piece test). So, the results have confirmed and validated the dimensional quality of the machine that was randomly taken from a series of commercial printers.

Правоспособност за работа с трактори, земеделска и горска техника Анализирани са основни нормативните документи, регламентиращи придобиването на правоспособност за работа със земеделска и горска техника. Разгледана е системата за обучение и провеждане на изпити, направените промени през годините и степента на съответствие с изискванията за развитие на отрасъла.

На тази база са направени препоръки за подобряване на нормативната база, с цел повишаване на равнището на подготовка на кадрите за земеделското производство.