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 cycle of operation of hydraulic excavators has a series of steps in which large masses are accelerated and then braked. The presence of additional masses on the excavators improves stability but reduces energy efficiency. ...

The paper presents a study on the impact of chemical pollution of the soil, from residual bauxite lake, from "Mineri", in the areal of Tulcea. Soil samples were taken from the lake, and from the immediate area of the ...

The experimental research was made on superficial layers laid-down through electrical sparking on the steel carbon OLC 45 probes, the used electrode being made from a corrosion resistant material (Copper). The probes ...

Worldwide, the series of attacks "with bomb" are the most common, accounting for over 80% of terrorist attacks. The many constructive solutions of Improvised Explosive Devices (I.E.D), would require for defusing sequence ...

In the consumer’s theory, a crucial problem is to determine the substitution effect and the revenue effect in the case of one good price’s modifing. There exists two theories due to John Richard Hicks and Eugen Slutsky ...

In this study, we used a comparative research on the selected countries in setting the local market to identify solutions for Market Regulation Subsystem. We initially identified the system of market regulating and ...

The essential condition for attaining excellence in the informatized administration of the Human Resources Management (HRM) activities is the development and implementation of high-performance e-HRM systems. For this ...

Lucrarea de doctorat se extinde pe 180 de pagini și conține un număr de 125 de figuri și un număr de 75 de tabele. După prezentarea detaliată a stadiului actual al sudării prin presiune la rece, în lucrare se prezintă ...