In this paper the parameters of the acoustic field were studied experimentally,along with the frequency produced by the generator and the circular diagram of the generator’s acoustic emission, the influence of the nozzle’s ...

Construction machinery equipments are complex, with a high degree of mobility. Their operation is done with groups of hydraulic cylinders equal in number with the mobility. This paper presents an exact calculation, which ...

The paper studies, from the electromechanical point of view, a medical apparatus designed for spine treatment by vibrations. The differential equations of motion of the system have been obtained by using Lagrange equations ...

This paper aims to demonstrate the successful applicability of the general principles of the computer- aided design to the sprinkler irrigation systems. In other words there were applied commands and traditional design ...

This paper presents a method of econometric modelling of the manufacturing machines which is based on the machine operation monitoring, the collected data storing and an analytical model building meant to describe the ...

In practice, decisions on order acceptance and on production planning are often made separately. Sales department is responsible for accepting orders, while production department is in charge of production planning for ...

This paper presents a product time and cost estimation method taking into account the market dynamics and manufacturing system competitiveness. The method is based on the behavioral modeling using on-line unsupervised ...

The importance of ultrasound frequency radiated by the sonic generator in the evolution of water quality parameters and its variation according to the pressure level of input air are described in the paper. Also, ...

The vibrations of many mechanical systems can be described by differential equations that have coefficients that depend on time. It is difficult to determine the approximate or exact analitical solutions of these equations. In ...