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In the present time an approach is widely developed when the rock mass is considered as an energy-active hierarchical-block medium. The blocks of this medium are constantly interacting with each other and exchanging energy under the influence of various factors. In the intact rock mass the energy dynamic equilibrium of the medium is maintained due to constant energy feeding and, at the same time, due to continuous processes of structural discontinuities destruction on different levels. The seismic energy frequentl...

The paper proposes an evaluation of the flavor potential of the Pinot Noir wine, in whose production technology maceration-fermentation enzymes were used and their influence in the context of variable temperature parameters. The GC_FID methods used led to the identification and quantifying of esters such as Ethyl Octanoate, Ethyl Decanoate, Diethyl Succinate, Ethyl Lactate, Isoamyl Acetate, Ethyl Acetate, Ethyl Formate, that combined led to the conclusion that maceration-fermentation enzymes and temperature contri...

Geotechnical works are closely related to civil engineering works, both in the initial phase of a construction and, in special cases, after the construction when new structures are built in the vicinity. Depending on the foundation ground capacity, many types of works must be developed such as various pile driving methods, slope containment, deep excavation, ground improvement or treatment, etc. Associated with special types of works there are the vibrations propagated in the ground from depth to the surface which...

In this paper were realized some researches concerning the grinding process of plates used by the sintering process DMLS. This plates are used in Direct Metal Laser Sintering process like support necessary for the powder deposing and for the final pieces realized by sintered process. The material used in DMLS process necessary for dental crowns manufacturing is a Co-Cr alloy. Co-Cr alloy is a super stainless steel with good mechanical and corrosion resistance. The material used for plates is a Fe-15%Cr martensitic...

Nasal cheese is a smear ripened traditional Romanian cheese produced in a natural cave near Taga commune, Cluj County. The effect of varying heat treatments (65 or 80 пїЅC for 20 and 5 minutes respectively) and salting methods (dry or brine salting) on bacterial viability and biochemical properties in Nasal cheese were investigated. Brevibacterium linens, a corynebacterium produce a characteristic "sulphur" aroma associated with such cheese. Therefore, this study also investigated the profile of volatile compounds...

Particle size is an essential concept in flour milling which influences dough rheological properties and food product quality. The grape seeds flours (GSF) obtained by further grinding grape seeds vary in particle size and differ in chemical composition. Grape seeds selected from red wine pomace and wheat flour of a low extraction rate of 480 type were used in samples formulation. The objective of this work was to investigate the influence of different particle sizes and addition levels of grape seeds flour (GSF) ...

The quality of bucket wheel excavators (BWEs) operations is largely influenced by the physical-mechanical (structure, mineralogical composition, plasticity, anisotropy, degree of fracturing etc.) and technological properties (compressive strength, tensile strength, shear strength, compaction, consolidation, cutting resistance etc.) of the rocks. If the excavated materials are relatively homogenous, without intercalations with excessive cutting resistance, it is not difficult to conduct the technological process. I...

This paper presents the results of research of the influence of the rock-forming minerals on the decomposition temperature of the oil-soluble catalyst precursor in the process aquathermolysis of heavy crude oil. As the catalytic agent was used nickel tallate, which in the process of aquathermolysis of heavy oil is converted into an active form. Changes in the composition of heavy oil after aquathermolysis in the presence of a precursor catalyst were evaluated using the hydrocarbon type content analysis (SARA). In ...

Study of soil cover is particularly important for solving the occurred problems from implementation of infrastructure works of the roads. The soil cover is at the upper part of the Earth's crust and has distinct properties morphological, mineralogical, physical and chemical differences due to climate, relief, waters. The interrelatedness of the various geomorphological, climatic, hydrological and soil factors and the human factor, resulted in a wide variety of soils with specific and constantly evolving. In Timi? ...

During the four years 2013 пїЅ 2016 structural changes in top-soil in silage maize monoculture were evaluated. Soil condition was evaluated according to the structure coefficient (SC) and the stability of soil aggregate, i.e. its ability to resist degradation. The experiment was established in sugar beet growing region of Czech Republic on Carbonate Chernozem, clay loamy textured. Monitoring was carried out in three variants with different dose of applied compost: Variant 1 пїЅ Control, without compost; Variant 2 ...

The pea production is influenced both by the soil tillage system and climate conditions during the vegetation period of the crop and by the degree of infesting with disease and pests of the crop. The control of pests and pathogenic agents in the case of pea crop is important in order to avoid production and quality losses produced by them, as it is known as a sensitive crop. The paper presents the influence of the soil tillage system (conventional, minimum tillage and no-tillage) applied to a phaeosiom from the Tr...

Thermal insulating materials were obtained from diatomite and with burnable reinforcing additives, modified by synthetic and natural polymers. As burnable additives used rice husk, reinforcing additive is a basalt fiber, modifying polymer is polyvinyl alcohol and starch. Thermal insulating material obtained by mixing dry water mixtures at various ratios of components followed by drying and calcining at a temperature of 750 C. Parameters were determined linear shrinkage, density, compressive strength, the bending s...

Depositions of the Domanic type in the territory of Tatarstan are stratigraphically associated with carbonate-siliceous deposits of the Upper Devonian part of the section. These deposits, enriched with organic matter, are characterized by the ability to generate liquid and gaseous hydrocarbons and accumulate them in the form of deposits of unconventional type. In this paper, the results of geochemical studies of rock samples from the depth interval 1705-1728 m of the Semi-Bug-Buregian deposits of the Berezovskaya ...

The research studied the influence of the volume and construction of пїЅHikoпїЅ and пїЅPlantekпїЅ containers on acorn germination, resistance of root-closing substrate, height of aboveground plant parts and length of root systems of oak seedlings. The cell volume in пїЅHikoпїЅ containers varied from 25 cm3 to 530 cm3 while in пїЅPlantekпїЅ containers пїЅ 115 cm3 пїЅ 275 cm3. The seedlings were grown in greenhouses of arch type with polycarbonate coating and automatic watering. Peat-moss was used as a substrate. Av...

Poland, as a country with its own energy resources, has one of the lowest energy dependency rates in the EU - 25.8% (Eurostat, 2015). The deposits of black and brown coal ensure this situation. Therefore, in the present situation, it is so important to develop effective methods of forecasting the production of these resources on the basis of internal and external factors of this sector. This paper presents the importance of black coal for the energy security of Poland and the EU. Then, what the paper describes are...

This paper presents a semi-analytical analysis of wave propagation induced by a moving load due to rail traffic. The system studied is composed of a railway track coupled to a multilayered porous medium. The approach is proposed for a 3D modeling of the railway/soil system. It allows calculating the speed waves semi-analytically as well as the displacements of each solid or fluid phase at any point of the massif in both the wave number domain and the spatial domain. A model using a complete beam integrating all th...

When determining height differences by using trigonometric levelling method, some affecting values are present. Besides measuring imperfection due to instrumental imperfection and surveyorпїЅs errors, quality of the trigonometric levelling results also depends on following external affecting values: height difference between observed points, distance between observed points and temperature gradient (change of temperature with height) between observed points. Therefore, if the height difference is bigger, the influ...

1050 aluminum alloys are used in the conventional engineering applications where the increased corrosion resistance is required (e.g. automotive industries or construction, containers). Improving the corrosion resistance of 1050 aluminum alloy is an extensively studied topic. Different methods are applied to improve the corrosion resistance of 1050 aluminum alloy as: painting, waxing, zinc-chromate priming, thin layer of pure aluminum, coatings with a liquid protective solution, conversion coatings and also anodic...

In Banatului Plain area (western Romania) the grassland vegetation is represented by steppe and forest steppe. From the past, most of the land was cultivated and nowadays grasslands are present in the plain only in the vicinity of the inhabited area for the use of the grazing animals of the community during the vegetation season. Many times the steppe grasslands are characterised by an increased alkalinity of the soil that determinates the existence of the halophytic vegetation sward. The plain is mostly intensive...

In this article, the authors have analysed the influence of ultrasound, used in the quenching from the intercritical range (? + ?), on the volume fraction of martensite in the microstructure of a dual-phase steel with 0.087% C and 0.511% Mn. The ultrasonic oscillations, applied to the medium in which the quenching takes place, under the action of pressure and cavitation phenomenon, destroys and prevents the formation of vapor and gas films, thereby ensuring a more prolonged contact between the workpiece and the co...

Based on a comparative analysis of biomarker data of the bituminous of the rocks of different ages located near the Sarayli and Altunino-Shunak troughs, various sources of their formation are shown. It is established that disjunctive rocks in the development zone of the Sarailin trough serve as ways for lateral and vertical migration of hydrocarbons of the one degree of catagenetic maturity to places of productive deposits. In the case of the Altunino-Shunak trough, two types of hydrocarbons are observed, differin...

The work is devoted to consideration of the design of information and analytical support for the processing of heterogeneous geotechnical and geodynamic monitoring data. Based on the statistical analysis, the main problems were identified. They are leading to catastrophic consequences of karst dips and also affecting the quality of the forecast estimates. To increase the sensitivity of detection of the initial phase of destructive processes in the system "geological environment - engineering and technical object",...

Currently widely understood Information and Communication Technologies (ICT) has dominated most branches of the economy. Still, their potential has not been fully exploited. One of these areas where ICT is used to a limited extent is the management of complaints. The current problem in an era of rising expectations and requirements of customers or consumers is the way of collecting and processing large amount of data associated with manufactured products and services supplied. This analysis of data sets can provid...

The conceptual approach to the restoration of natural ecosystems (ecological restoration) is to use the idea of adaptive systemic organization of ecosystems, as the driving force of evolution is targeted adaptation of ecosystems, based on feedback, towards enhancing their viability and sustainability. On the basis of the principle of information unity of natural and engineering systems considering natural ecosystems as information-driven and environment conditions as controlling factors, an algorithm for adaptive ...

The paper deals with possibilities of recovery methods of technical installations in brownfields. The paper refers to basic problems of regeneration of technical installations in brownfields, namely the identification of individual networks, their often diametrically opposed structurally-engineering states, possibly the effectiveness of approach to reconstruction. The paper offers possibilities how to access to the structures that often exceed their moral life and last but not least, the paper offers new progressi...

In the latest decades, wooden structures have known a significant revival in the context of sustainability challenges, considering the low-embedded energy, low carbon impact of this renewable resource. The employment of modern wood structures presents many economical advantages as well, from the availability and the low-cost of the material, to the ease of processing and construction. An important aspect is the energy-efficiency of the system in exploitation, when we consider life-cycle assessments. Light-frame co...

On the night of February 21st, 2010, the county road 724 that connects the Malu cu Flori-Pucheni village was destroyed by a violent landslide, isolating it. In a few hours the road, together with the electrical, phone and water systems were moved downstream 30m along 100 meters. The area has been known for more than 100 years as being affected by landslides, which have appeared immediately after massive deforestation, regularly engaging local roads, house hold settlements. After the sliding in 1970, a series of wo...

The principal tool used for the implementation of spatial policy in Polish communes is a local spatial management plan. It is an act of local law and its provisions are binding in respect of the purpose of land development and the way it is achieved, development conditions and localisation of public aim investments. All actions undertaken by the commune authorities must be carried out in a manner which is both socially and economically efficient, in compliance with the requirements of environmental protection. The...

The relevance of the research is conditioned by the need to develop the theory and practice of integral assessment of the state and emergent properties of complicated natural and social systems, with the use of modern methods of evaluation. The article deals with assessment of stability of the social-ecological-economic system (SEES), being its integrative (complex, emergent) property influencing the "quality of life" of the population. The authors, analyzing a regional SEES, characterize it by the ability to reta...

At present, scale control through chemical inhibition is the preferred method in oil recovery though the principle of chemical agent action is still considered complex and not fully understood. An important issue that needs to be addressed is associated with compatibility of techniques and their impact on the reservoir and borehole zone. Scale control solutions remove deposits effectively and inhibit their formation, reducing costs associated with scale cleanup and disposal, while helping increase production and p...

Environmental assessment is also the basis for the definition and management of ecological risk of anthropogenic load on the environment. The possible impact on the Bugsky estuary are presented and substantiated and solutions are proposed to reduce the anthropogenic impact on the waters of the estuary. The main element of risk analysis is to identify hazards that can lead to negative consequences. Purpose is a comparative analysis of the environmental status of surface waters on the basis of integrated indicators....

This paper deals with the first results coming from the research activity of the SECOSUD Phase II, called пїЅConservation and equitable use of biological diversity in the SADC region (Southern African Development Community) a project supported by the Italian Ministry of Foreign Affairs in the SADC [1]. The goal of this tiered study is to give an integrated view of three focus themes inside the area of Limpopo National Park, in Limpopo River Basin: groundwater, climate change, biodiversity. Limpopo National Park is...

The article presents our own solution of a monitoring information system developed on base of experience learned from completed projects. Information system integrates automated data collection by geodetic and non-geodetic sensors, and presentation of data through a web interface. The measuring part of the system supports data collection by multiple types of sensors. At present are pluggable leveling sensors (Leica DNA03, Leica Sprinter), GNSS sensors (Leica System 1200), 3D sensors (robotic total station Topcon G...

In accordance with the developed methodology for a comprehensive solution of issues of mineral deposits development in the Russian Arctic zone, a list of criteria has been established that allow evaluating the priority of nuclear power sources in solving problems of power supply to the Russian Arctic regions while developing the deposits and performing a ranking of the various reactor plants. The list is based on information technologies modeling objects, production and processing of raw material and geoecotechnol...

The authors have carried out uniaxial compression tests of 200 mm side cube specimens made of artificial layered geomaterial with the bedding angles of 0, 30, 45, 60 and 90 deg and with the different strength of the layers to study the process of deformation to failure using the multiparametric equipment designed for synchronous recording of physical fields of stresses, macrostrains, microseismic emission (MSE) and microstrains by speckle method. The integrated analyses of MSE signals, microstrains, stresses and s...

The paper analyses the waste management practice for the Arad County located in the western part of Romania. Together with Timis County it forms a prosperous region in Romania, attracting numerous foreign investors, especially because its proximity to the border. The transformations that led to the modernization of land in this county were radical and occurred unevenly. The main driving forces of resource consumption are economic growth, technological developments and changing consumption and production patterns. ...

As a result of increasing of urban population cities are currently facing a growing demand for space for residential, commercial, industrial or leisure use. Brownfield sites are very common in Romania, especially in big cities like Timisoara and in former industrial cities. Reusing brownfields is a way forward for the Romanian cities. There are many inspiring examples of brownfields regeneration in the EU, but every site is unique (including regulations, landowners, market attractiveness etc.) and all these partic...

The increasing development of all industries is a trend that affects us every day. We take this as a part of our lives. Intelligent buildings are trying to meet the high requirements of the population. The aim is to combine individual rooms and power systems and to simplify their operation. Each room in the building can be controlled independently without affecting the thermal comfort other people who were located in the building. Intelligent buildings combine architecture and aesthetics of the construction, safet...

Ensuring environmental and industrial safety is a complex interdisciplinary problem. According this, it is necessary to solve the following problems: ? risk analysis of accidents and safety management of chemical-technological processes and systems for preventing failures and emergencies in conditions of uncertainty; ? reliability analysis of chemical and technological processes and systems and corrosion resistance of process equipment in various aggressive environments in order to increase resiliency and prevent ...

The paper presents comparative studies aimed at reducing labor costs of Bond Ball Mill Work Index test (BWi) by using a number of alternative techniques. Methods of Ahmadi and Shahsavari, Berry and Bruse, Gharehgheshlagh, Horst and Bassarear, Kapur, Magdalinovich, a standard Bond test with feed sizing into limited size grades, and a standard Bond test with grain size analysis of subsamples of milled product were compared. Magdalinovich-Ahmadi and Kapur testing techniques were modified. The modified Magdalinovich-A...

Detecting and monitoring of coccolithophores blooms is increasingly important due to their significant role in ocean biogeochemistry and unique capacity for feedbacks to climate because of calcite carbon and DMS production and high reflectance. Application of remote sensing approach, based on dependence of water optical properties on coccolithophores/coccoliths abundance (particulate back scattering coefficient) , allows for tracing of coccolithophores dynamics at basin-wide scale enabling quantification of bloom ...

The increased requirements to the strength of products from glued wood, in particular to plywood are imposed at the modern wood processing factories. The data on the development of high-strength plywood materials with the use of new intensive technologies are presented in the article. For creation of high-strength plywood polarization is used in the course of production of plywood. Polarization was carried out by means of fixed electric field. It is revealed that process of polarization exerts positive impact on a...

In western Romania, respectively the lowland area of this region the main grassland habitats are steppe and forest steppe grassland. Most of the land from this region is arable, the grassland patches being scattered in variable surfaces near to the inhabited area. These are used mainly for grazing by the cattle and flocks of the community. Some small grassland surfaces are mown for hay. Most of the arable land is cultivated in an intensive manner, this agricultural practice influencing the biotope and biocoenose o...

Currently, the system of higher education is based on interdisciplinary relations established between the scientific disciplines of the natural sciences. The article covers issues related to improving the quality of environmental learning through the study of disciplines associated with pedology, ecology and geography of soils. The article justifies the significance of the courses dealing with pedology in teaching students to creative professional activities for solution of global and regional ecological problem w...

This paper presents the results of a complex investigation executed in Bucharest, Romania by both geotechnical and geophysical techniques. Soil structure has been explored through 20 geotechnical boreholes at maximum 60m depth, which provided hundred of soil samples. A comprehensive set of experimental data on subsoil from oedometer and direct shear tests are analyzed in order to determine the stiffness and strength parameters for cohesive soils. For sands and gravels, the stiffness and strength parameters derived...

Silver birch is economically important tree species in Latvia. Currently most of clearcuts in stands of this tree species are regenerated naturally, however, there is an increasing demand of birch plants. Around 5 mil. plants are produced in Latvia annualy, exceeding the amounts in other countries in the region. With a goal to intensity the forest management, while propagating only the best genotypes and reducing initial spacing in order to ensure large radial increment, recently testing of vegetatively propagated...

In this study the intra-site variations in climatic signal observed in tree rings of larch from the Polish Carpathian Mountains were analyzed. To identify the differences between tree-ring growth of particular trees within each of analyzed sites, the descriptive analysis, visualizations, Factor Analysis (FA), Principal Component Analysis (PCA) and Independent Component Analysis were used. For evaluating observed differences the clustering methods (k-mean, EM, c-mean, Kohonen Artificial Neural Network) with ANOVA a...

Currently, in connection with the deterioration of the environmental conditions, the per-son experiences daily stress. There is a growing need to improve the immu-Niceta people in vitamins, microelements and biologically active substances. Traditional means of im-mune support due to the low efficiency pale into insignificance. Therefore, growing de-mand for environmentally safe products medicinal plant with a high content of vitamins and biologists-cally active substances such as Panax ginseng. Ginseng is known to...

A case study concerning a drystone retaining wall that failed during construction, is presented. The site geology, the materials and their geotechnical characteristics are documented and discussed. The detailed site investigation performed allowed to define three geotechnical units: 1 - anthropogenic deposits; 2 - quaternary alluvial and colluvial deposits; 3 - Neogene alluvial fan. The third geotechnical unit, the Neogene alluvial fan, is mainly composed by dense and very dense sands, showed the best geotechnical...

The present work aimed to investigation of influence molecular weight of chitosan, method of silver nanoparticles producing and immobilization, amount of cross-linking agent on antibacterial activity. Silver was incorporated in the matrix in two ways: 1 пїЅ by the recovery of silver ions from AgNO3 solution; 2 ? by addition to hydrogel the silver nanoparticles, obtained previously by microbiological synthesis. The molecular weight of chitosan shows strong influence on internal structure of matrices and on release ...