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Redefining the maritime space security framework is actually a top priority for any European maritime country, and Romania is no exception. Several research projects, all in connection with the safety of the maritime space and the submerged cultural heritage have been addressed by the Romanian researchers during the last years. Among them, the project entitled ?Implementation of a geophysical investigation and monitoring tool of the Romanian maritime space security ? MAR-S? explicitly aimed at demonstrating the ef...

The paper is concerned with the evaluation of the influence of the proximity of important protected location on the market value of land compared with the market value of land outside these locations. The database of values of land near or directly inside the locality classified as a protected natural site will be created in the paper, as well as the database of similar land outside such locations. The market values will be created from these databases. Then the paper will deal with the comparison of these values ...

The article presents the results of statistical processing of field surveying observations data of the displacement process on the earth's surface. Currently, the main method to monitor displacements and deformations of the earth?s surface during mining operations is to determine the coordinates of reference points of observation stations. This method allows you to obtain reliable data on the movements of points in the displacement trough and form an idea of both the shape of the trough and the values of deformati...

Forest fires damage biogeocenoses. Forest fires affect trees, vegetation and soils. This influence can be both positive and negative. The thermal effect of a forest fire on the soil layer is important. It is necessary to develop mathematical models for understanding the processes of thermal effects of a forest fire on the surface soil layer. Earlier, a simple mathematical model was developed which takes into account the given characteristics of a forest fire and heat transfer in the soil layer by conduction. The p...

Concrete is a widely used construction material. Extraction and processing of raw materials used for its production requires a lot of energy and poses threats to the environment. At present, in accordance to the idea of sustainable development and close circuit economy, it is recommended to aim at the maximum reduction of raw materials by replacing primary materials with secondary raw material (recycled materials) or industrial by-products. One of the pro-ecologic attitudes is introducing secondary wastes from the...

Ketoprofen is well-known drug due to anti-inflammatory, analgesic and antipyretic properties, and is widely used in the treatment of various acute and chronic inflammatory diseases, including rheumatoid arthritis, osteoarthritis, ankylosing spondylitis as well as menstrual abdominal cramps. Its therapeutic benefits in the prevention of various cancers including colorectal and lung cancers as well as in the treatment of neurodegenerative disorders such as Alzheimer?s disease, Parkinson?s disease have been establish...

Reducing consumers' electricity supply time, reducing downtime in selection of the medium-voltage feeder faulty branch requires that the network be equipped with commanding devices, automation and modern primary switching equipment.The medium voltage automation system will be based on the degree that, each line, contributes to attract sanctions for unplanned interruptions, and by analyzing the causes that determine the interruptions in continuity of electrical energy supply in the past two to three years.The adopt...

Crete is well known as a possessor of one of the most ancient cultural layers of Ancient Greece. At the same time the oldest cultural stages at Crete are quite different. These differences are most often identified in the outstanding archaeological cultures of the Bronze Age, complemented by a large number of high value historical monuments. In contrast, the historical period between Prehistoric Crete and Minoan Civilization is studied only fragmentary. The evidence and ruins of monuments of this final stage of th...

Forests present up 41.3% of the total area of the Slovak Republic. However, for forest soils no limit values for risky elements are given by the legislation, as it is for agricultural soils. The aim of this study was to monitor forest soils of 7 regions in Slovakia. Soil samples were collected from 70 sampling sites in 9 selected localities. Environmental risk was evaluated on the basis of total Hg soil content determined by CV-AAS (cold vapor atomic absorption spectrometry) method, the background Hg soil content ...

The qualitative and quantitative composition of biomass of microorganisms has been studied in key points of artificial biocenosis: water filter, duckweed and pond snail. Metagenomic studies have shown the presence of Bacteroides and Proteobacteria types in all examined systems, however, specific representatives - Actinobacteria, Cyanobacteria, and Bacilliwere also found, respectively. A microflora peculiarity of water filter was the presence of actinobacteria. In the intestine of the pond snail (Lymnaea stagnalis ...

Among various pollutants, heavy metals with persistence, non-biodegradation, toxicity and bioavailability pose a major threat to all components of the environment. In soil of vineyard area near Nitra (Slovakia) were analysed four heavy metals (Cd, Cu, Pb and Zn) in order to assess soil contamination. Contamination factor (CF), degree of contamination (DC) and pollution load index (PLI) were used in order to determine the level of environmental contamination of the study area. The average values of CF in soils decr...

In Brazil, about 12 million tons of rice is produced annually, among the types of rice produced is parboiled rice, which according to data from the Brazilian Association of the Parboiled Rice Industry represents 23% of Brazil's rice consumption. In the production of parboiled rice, a hydrothermal process is carried out in which the rice is subjected to a period of waterlogging, followed by autoclaving and subsequent drying, with the diffusion of nutrients from the bark to the interior of the grains, also occurring...

The current climate change, demographic problems and unequal territorial and seasonal distribution of fresh water supplies lead to a sharp expansion of the reservoir network. Subsequently, the negatives associated with the process are increasing: flooding of lands and infrastructure, impacts on climate, change of underground water regime, activation of landslide processes and rising population security risks. During designing of water reservoirs, they were not investigated and taken into consideration. The rationa...

For the design and safe operation of oil and gas offshore drilling structures on the Arctic shelf, it is necessary to know the regime characteristics (frequency of occurrence, size, drift parameters) of dangerous ice features (icebergs, hummocks, stamukhas, large ice floes). In the paper we describe a method of estimating the frequency of iceberg occurrence, which is based on the implementation of a numerical iceberg drift model, and the subsequent calculation of the conditional probability of icebergs appearing i...

The active development of large cities leads to increase of wastes. And as a result, a system of interrelated problems was formed: 1) The negative impact of municipal solid waste (MSW) landfills on the population and the environment; 2) The irrational use of land adjacent to metropolises; 3) The lack of modern facilities. In Russia the MSW landfills for a long time will be used for disposal of solid wastes residues. To date, 93% of generated wastes is placed on landfills. The main objective is to reduce the number...

A dynamic method has been developed for optimizing reload horizon of a cyclic and continuous technology complex (CCTC) with a combined road-conveyor-rail type of transport for round open pit fields, providing a rational depth of rail transport installation together with economically viable horizons for the location of the concentration horizon and reload from steeply inclined conveyors into the inner mine railway transport. Mining in border and deep zones of open pit mines is conducted in constrained conditions. C...

One of the main problems of creating information management systems in various fields of knowledge is a long development period. This problem is caused by a number of factors: ? heterogeneity of data at each stage of the life cycle of the information system; ? use of various means of describing data; ? different and diverse levels of detail description of information about each of the stages of the life cycle; ? large labor costs, in case of adjustments and modifications of information system. All the factors list...

Economic diversification is considered as a model of modern rural development in the European Union and in Bulgaria. It is perceived as a process of increasing the variety of economic activities in the sectors of the rural economy. The creation of stable sectors represented by a variety of production activities, marks the contemporary socio-economic development of rural areas. This is the reason why economic diversification finds its place in the rural development policy of the European Union (EU) and Bulgaria. Th...

Despite the development of technology and methodological support in the field of IT, one of the key problems remains to be solved - the problem of mutual understanding between the customer and the developer (stakeholders). The essence of the problem lies in the complexity of the design process, characterized by conflicts between the results of designing teams of developers working together on the design of one system, deliberate distortion or limited information exchange between developers, semantic barriers betwe...

At all times, one of the most important criteria for evaluating the performance of a mining enterprise were its economic indicators. It is well-known that the enterprise will get that big profit, than earlier it will be able to learn the most effective way of development of production. In this regard development of qualitative methodology of assessment of economic efficiency of planning is very relevant as allows to receive indicators of economic effects from the implementation of a specific plan and on their basi...

The topic of assessing the efficiency of a public investment in a shipping lane involves a myriad of smaller units that can be examined in more detail. The aim of this paper is to focus on the group of public investments related to the shipping lane as an object of public interest. Nowadays, shipping lane enter the topic of public investment primarily as a possibility of reconstruction or modernization of the area so that it can be effectively used for social purposes. The impact of a given shipping lane as a publ...

The work presents and validates the methodology for assessing surface hydrocarbon dissipation which is observed in the vicinity of natural sites and technological facilities. The results of the application of this methodology can be employed in the assessment of the potential environmental risks, the degree of environmental pollution, the influence areas of pollution, etc. and in taking adequate actions to prevent possible emergency situations.

Due to the massive development of information technology the amount of attacks on information systems has increased. Additionally, the attack features changed as well. They have acquired signs of hybridity, which is why it's much more difficult to prevent them. Information systems management is virtually impossible without security and safety management; whose main component is the assessment of existing risks. The subject of the study is the process of assessing the information security risk level that is being i...

The purpose of this paper is to present an analysis about the methods, which can be applied to optimize the oil and gas supply chain, in the context of globally environmental challenges. The regional legislation backgrounds regarding the environment, mainly based on social and economic reasons, are becoming more and more important. The European Union (UE) is a first example of applying the regional environmental principles and objectives by means of the legislation of member national states, the European fundament...

When constructing a geological model at the stage of 3D grid building, the problem of vertical layering. When modeling is performed on the area with a large number of wells, the process of cross-well correlation of productive strata turns into a very labor consuming stage. To speed up and increase the reliability of the correlation of well sections, the authors proposed an approach to automate this time-consuming process. This approach is based on the use of machine learning algorithms that can reproduce the nonli...

Atmospheric-soil measuring complex (ASMC) contains ten-meter mast with five temperature and humidity sensors in the radiation protection at altitudes of 1, 2, 4, 6 and 10 m. In addition, a wind speed, wind direction and total solar radiation sensors are installed on the mast. Also a solar battery and an antenna for a cellular modem are installed on the mast. Near the mast there is a snow cover height sensor and a liquid precipitation sensor on a two-meter tripod. The soil part of the stationary variant for monitor...

In an ecosystem, vegetal organisms have a very important role, constituting the level where the most intense and complex matter and energy exchanges are realized and the synthesis and decomposition processes of the organic matter occur, in close correlation with the abiotic environmental factors. The present study aims to describe certain practical methods of study for the vegetation (of a Subcarpathian area, Vulcana-Bai Commune), which has as structural and functional subunits the phytocenoses specific of a Subca...

The biosynthesis of noble metal nanoparticles using microorganisms (?green synthesis of nanoparticles?) has recently become widespread for medical applications. The characteristics of the resulting nanoparticles depend on the microorganisms used and the process conditions. Screening of a number of methylotrophic bacterial communities of a practical biotechnological value was carried out to determine those ones, which were able to synthesize silver and palladium nanoparticles at high rate and efficiency. In several...

In the article the authors propose to use inductive metric data mining methods to assess the environmental and economic risks of businesses in various fields of activity and industry. The purpose of this methodology is to conduct operational monitoring of both environmental and economic condition of enterprises to regularly monitor the dynamics of internal and external factors when planning strategic decisions. A distinctive feature of the proposed approach is the integration of environmental and economic indicato...

The paper emphasize the correlation among the metals content in different samples of some individual macrophyte algae species with different contribution, as part of residual algae biomass along Romanian Black Sea Coast, that could be used as a potential new biostimulator-regenerator recommended for improving the quality of the vineyard soils from Dobrudja region, Romania. Concentrations and sources of copper, zinc, iron, chromium, manganese, cadmium, lead and aluminium were analyzed. For the metals content determ...

Microbial processes are of crucial importance for life on Earth. Microorganisms are capable of unique transformations on a global scale that all contribute to the harmonious functioning of the biosphere. Some microbial processes and their final products can influence atmospheric composition and climatic conditions on a planetary scale. Climate change, easy to see in recent decades, can alter the functioning of microbial communities and trigger positive or negative feedbacks. Microbial activities, such as organic m...

Micro and nanoparticles of titanium dioxide are nowadays produced worldwide for a range of applications. In our project we focus on potential use of titanium dioxide particles as UV absorber (anti-UV protective coating) for wooden construction structures. We investigate the influence of different synthesis methods on particles? morphology. Hence, material characterization has an important place in our research. Electron microscopy is a powerful tool to obtain information about the morphology of particles and their...

Soil science literature divided the soil biodiversity into ?three broad functional groups called chemical engineers, biological regulators and ecosystem engineers.? The paper pointed out (by the aim of the microscopic tools) the main ecosystem services provided by the biodiversity of (micro) organisms living into the soil at the organic-inorganic interface, where they built a favorable environment for themselves, the crop roots, and the entire ecosystem. The studied sites are located into different pedolandscapes ...

Over the last years the appliance of Computed tomography (CT) on lacustrine and marine sediment cores is continuously increasing, since it provides a fast, high resolution and nondestructive technique in the investigation of sediment characteristics. Micromorphological features that are not clear through macroscopic examination of the core, can now be further analyzed through high resolution 3D visualization. The present study aims on the use of this method as a tool for the clarification of different sedimentolog...

The paper deals with a design and a method of milling of the invention called ?Milling device for mechanical treatment process of fine particles?. The milling device for mechanical treatment process of fine particles according to the present invention consists of a lower flange with a milling chamber having an external part and an internal part being fixedly attached to said lower flange wherein an elastic doctor blade with brushes is arranged within said internal part. The elastic doctor blade with brushes is fas...

A complex geological history and several stages of graphite mineralization are characteristic for the perspective Ihal? deposit. Primary carbonaceous matter is associated with early Proterozoic sedimentary complexes. Polychronic metamorphism, intrusive magmatism (microcline and plagioclase granites), migmatization of rocks, and contact metasomatism (scarns) have influenced the current appearance of the ore strata. Graphite is represented mainly in flaky crystalline forms in mineral intergrowths with biotite, pyrrh...

This paper discusses the results from a complex laboratory studies, carried out on the lead-zinc ore from Madan ore field deposits. The Pb-Zn ore is currently processed in Rudozem concentrator, involving a sequence of three stage crushing, followed by ball mill grinding and selective lead-zinc flotation circuit. Two properties from the laboratory grinding tests were investigated: mineral liberation characteristics (batch grinding tests) and Bond ball mill work index (kWh/t). In order to determine the correlation b...

The paper presents the results of studying the technological properties of vein quartz Girvas occurrence. The mineralogical and chemical composition of the technological samples are analyzed. The distribution and composition of mineral impurities, gas-liquid inclusions in quartz are studied. When developing a deep beneficiation scheme, quartz grain sizes were selected based on the experience of enrichment of vein quartz, the size and composition of mineral impurities. Enriched quartz concentrate with a particle si...

There are the results of studies of mineralogical features of gold-sulfide ore occurrences of disseminated type of three tectonic structures of different grade of the north-eastern Siberian platform: Sololiy, Ebelyakh uplifts and Anabar shield. At the Sololiy uplift of the Olenek arch ??, superposed disseminated ore mineralization is studied in the Early Permian quartz fine-pebble conglomerates. Ore mineralization is confined to thin zones of conglomerate cataclasis and crushing, caused by tectonic impact, and rel...

The crystalline basement of the East European Platform is composed of metamorphic rocks of the Archean-Proterozoic age. They are interesting as products of fluid-magmatic differentiation of the primary crust, which led to the formation of the early continental crust. The Volga-Ural segment of the crystalline basement is located in the east of the platform. It is covered by a sedimentary cover up to 1.5-2.0 km and was opened by the deep oil drilling. Based on the study of the obtained materials it was established t...

Mineralogical and geochemical features of ores played an important role in typification of gold mineralization of the Verkhneamginskiy area, which includes the Khatyrkhay and Khokhoy ore fields. Association of elements is represented by Au, Ag, Cu, Bi in the Khatyrkhay ore field. The mineral composition of ores - pyrite, hematite, chalcopyrite, tellurobismuthite, less common - native gold, galena, sphalerite, bornite, greenockite, hessite, tennantite, bournonite. Supergene minerals are goethite, hydrogoethite, cov...

Directional couplers can divide the input power between its outputs in different proportions. This is due to the ratio of wave resistances between two pairs of quarter-wave segments. Due to the fact that at frequencies of 2 GHz and lower couplers are also actively used, it is necessary to take care that their dimensions satisfy the radio system where they will be installed. Due to the fact that it is not always possible was investigated miniaturization as an opportunity to reduce the area occupied by the branch wh...

A new mineralogical application for mobile phones and tablets was created named MINS (Mineral Identifier for Non-Specialists). Android Studio was employed in order to implement it in Java for Android devices and is compatible with versions starting from 4.0 (Ice Cream Sandwich). MINS is an application for macroscopic identification of the most common minerals (about 99%) that exist on the upper crust of the earth. The user has the choice of identifying a mineral or to see a list with the most common minerals. In t...

The main ways that are used to solve problems and create mechanisms for protecting information are generally considered to be: technical devices, the whole set of which is divided into: physical and hardware - and software - programs designed to perform actions aimed at ensuring the protection of information. As a result of the development of computer security and information technologies, experts have concluded that the use of any one of the above methods will not provide reliable information protection. The comp...

The municipal solid waste landfill in Tychy, southern Poland consists of three sites, the old one, closed in 1994, and two others still being in use. The old part of the landfill has neither any bottom liner nor any leachate collection and treatment system. Moreover, the bottom of the closed site in the northern part is continuously above the groundwater table, therefore, pollution can easily release into groundwater causing deterioration of groundwater quality and the nearby river nearby. In order to assess the i...

Modeling using artificial neural networks (ANNs) is used in most fields of production. An approach to modeling the dimensional changes in some iron-based powder metallurgy (PM) parts during the sintering process is given. The proposed model used is a multilayer neural network with a backpropagation learning algorithm. This type of neural network model gave the best results in the process of modeling. The specimens used in this study are prealloyed iron-based powders. The particle size of the powders is ranging fro...

The necessity for an integrated geographical approach to the study and modeling of ground-water dynamics in river floodplains is substantiated in the article. A preliminary and simplified classification of the types of annual ground and surface water level dynamics is proposed, which can serve as a basis for the differentiation of intrazonal floodplain landscapes. Thus differentiation is a scientific problem. In landscapes characterizing of the floodplains a descriptive approach prevails, and there are no quantita...

Aquatic ecosystems of the Arctic are very sensitive to the climate change. Thermic processes inside and around water objects (lakes, rivers, wetlands) affected by endo- and exogenous factors and lead to talik formation and geoprocesses interaction and turnover. Hydrological and geophysical investigation in the Lena River delta have been carried out in spring and summer 2016-2018. Sublake and subriver taliks georadar and electrical resistivity tomography data were obtained in a field with following hydrological and...

The resistivity of reservoir rocks varies in radial direction from Rxo (resistivity of the flushed zone) to Rt (uninvaded zone resistivity). This variation is due to different content in mud filtration, formation water and hydrocarbons from the well wall to the uninvaded zone. The penetration of the mud filter in the collector and the change of the saturation states depend on the properties of the drilling fluid as well as on properties of the collector (porosity, permeability). Electric logs devices measure an ap...

The aim of this research was to determine the global horizontal irradiation (GHI) for Istria and Kvarner, two western regions in the Republic of Croatia with the GRASS GIS r.sun module and to compare it with the values of solar irradiation obtained from satellite images and ground measurements. Since the results obtained from the r.sun module have no quality control, the accuracy assessment was made on ground solar irradiation measurements obtained from Baseline Surface Radiation Network stations (BSRN). BSRN is a...