Browse

In thisstudy, the influence factor of the vertical movements of the earth's crust was taken into account. Such phenomena are strongly extended in time, but have a greater influence on the hydrographic network, for example, the closest example for the North-West of the Russian Plain is the transfer of runoff from Lake Ladoga from the Vuoksa River to the Neva River. Reconstruction scenarios of flow direction changing is important to improve the safety of the population and sustainable use of territories. The most im...

The article deals with the issue of accidents associated with hazardous substances, their prevention. Modeling of these accidents was chosen as a form of prevention. The production of dangerous toxic substances is currently growing, especially in the industry. The response to this trend is to introduce safer technological processes and preventive measures. These measures serve to prevent or at least reduce the risk of accidents and thus the escape of dangerous substances. To implement prevention, effective measure...

The paper presents a study of hydraulic modeling of the drinking water and sewage distribution network in Beclean City, Bistrita Nasaud County, from Romania. This study includes a calibrated simulation of the flow through networks (systems), which allows the elaboration of a future strategy of developing the networks (systems) of water and sewage. The need to develop hydraulic models as accurately as possible results from the fact that, by creating and calibrating the hydraulic model of a system, a variety of syst...

Solid waste disposal facilities are sources of significant negative impact on the environment. In this paper, waste disposal facilities (landfills, dumps, sludge and manure storage facilities, etc.) are considered as open geo-ecological systems that constantly interact with the environment through the flows of substances and energies. Factors that increase the negative impact of landfills are waste fires, as well as accumulation of explosive gases, especially methane. Due to the fact that a municipal solid waste l...

Solving problems in the field of traffic control in the face of constantly increasing traffic and, as a result, an increasing number of random events affecting this traffic - delay points (accident, repairs, temporary overlap of lanes and individual sections) is impossible by the methods used today, since the vast majority of they are of an infrastructural nature and require considerable time for implementation (applying temporary marking, construction of interchanges, etc.). It is necessary to create new intellig...

The main cut-off parameter that determines the quality of iron ore resources and reserves is Fe cut-off grade. We often use the content of iron associated with magnetite for BIF deposits. The purpose of the study is to define the method of optimal values selecting for Fe cut-off grade. This value for resources calculation should be acceptable and effective, both for the owner of the subsoil resources, and for mining enterprises. It is proposed a method for choosing the optimum values of cut-off grade Fe in evaluat...

The paper presents a synthesis of our researches on the main physic - chemical and biological parameters of the Snagov Lake, from Ilfov County, Romania, made since 2013 until 2019. We have developed complex investigations on the most important water quality parameters of the lake, in the purpose of analyze the evolution of the water eutrophication phenomenon in time, in different sampling points, also to establish the optimal methods of control and combat of the studied pollution process. Because the eutrophicatio...