Romanian Abstract: În contextul actualei crize economice, reducerea costurilor are o importanţă deosebită în orice domeniu de activitate. Totodată, conformarea cu cerinţele de mediu reprezintă de asemenea un factor esenţial. Datorită acestor aspecte, analiza eco-economică,...

In the Eulerian approach the behavior of the atmospheric pollutants is described relative to a fixed coordinate system. Thus the pollutant concentration is a function depending on the system coordinates and must satisfy the material balance taken over a volume element. Expressed mathematically,...

In the current document we are referring to the existing data concerning the impact that benzene - which is one of the most important components of different types of fuels - has on Bucharest and on its inhabitants. We are also trying to present possible solutions to this serious problem which...

The present study wishes to bring to the attention of the reader the alarming impact that the common benzene molecule has on the environment, with unimaginable implications on the human being. Although it has a great economic importance, being used in many industries, specialists are underlining...

In the paper, considerations on the destruction process of the stratospheric ozone by substances emitted by anthropogenic pollution sources and which reach in the stratosphere by transport from the troposphere are presented. In the stratosphere, the lifetime of these substances is less than in...

In the Lagrangian approach to the turbulent diffusion the species concentrations are described relative to the moving fluid. This approach is concerned with the behavior of the fluid particle existing in a carrying turbulent fluid. Lagrangian theory describes the statistics of the pollutant...

Lucrarea se doreste a fi un studiu amplu, prin generozitatea problematicii expuse, cu privire la premisele si perspectivele asigurarii competitivitatii industriei de salubritate la nivel national si european. In urma prezentarii contextului actual, a pricipalelor companii de salubritate active...

Lucrarea isi propune sa identifice cauzele datorita carora sistemele de management a deseurilor urbane din majoritatea capitalelor continentului african inregistreaza un real declin comparativ cu managementul deseurilor din europa si din Intreaga lume. Paradoxul prezinta o dubla dimensiune. Pe...

Romanian Abstract: Contribuţia sectorului energetic la producerea schimbărilor climatice este considerată deosebit de importantă, în special prin efectele produse de arderea combustibililor fosili, emisiile de gaze cu efect de sera generate de această activitate fiind considerate una...

Romanian Abstract: Omul a fost preocupat de-a lungul istoriei evoluţiei sale de folosirea materialelor din jur pentru a-şi uşura şi îmbunătăţi activităţile. De la confecţionarea armelor de vânătoare, uneltelor pentru agricultură şi la realizarea de maşini complexe, omul a preluat...