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Several pots belonging to Neolithic cultures from the Romanian Plain contain crystals of brown hornblende. The brown hornblende is a calcic mineral belonging to the amphibole family, a highly complex series of inosilicates. Interestingly, the clay used as raw material for these Neolithic pots contains green, not brown, hornblende. No neighbouring sands (which could be added as a temper) contain such brown crystals. Therefore, the existence of the brown hornblende can be explained by in situ formation at the expens...

The activities carried out in the georeactor area during and after the completion of the process of extracting fuels based on underground coal gasification have a significant role in minimizing the environmental impact of the technology. Selecting the optimum, most effective method of removing contaminants from the underground coal gasification process should help to increase the safety of the process. The article deals with the idea of filling a post-processing cavern. The method involving geotechnics used to fil...

This work aims to analyze in terms of phenolic compounds of beverages obtained from indigenous plants, plants that are known in the specialized literature as being rich in bioactive compounds. Frum (2016) developed the identification method of the phenolic compounds, and this was based on a HPLC system, produced by Agilent Technologies 1200 Series, equipped with degasser, quaternary pump, DAD detector, automatic sampler with thermostat and column compartment equipped with thermostat. The measurements that were mad...

In the article results of experimental studies concerning the influence of the humidity of gas on CO2 separation of gas mixture CO2/ N2 simulating the exhaust fumes were presented. . In the paper special attention was drawn to the identification of influence and the initial analysis of selected parameters of the performance of polymer membrane on carbon dioxide from the mixture CO2/N2 of relative humidity 100% separation process. In these research the membrane UMS A2 by UBE was used, on which research using only t...

Sustainable development requires a multidimensional approach which takes into account at least three dimensions: economic, social and environmental. The defining characteristics of sustainable agriculture are: increased productivity; economic profitability; food safety and environmental protection. Through this work we try to analyze the influence of predominantly agricultural indicators on sustainable production and consumption in Romania. The study was made based on the statistical data available online, at Temp...

Around one quarter of the Romanian territory is covered with forests but the surface has been decreasing steadily due to increased legal and illegal logging and reduced efforts towards reforestation. This led to economic problems and uncertainties about the current stock and location of the Romanian forests. Very few empirical studies have been undertaken regarding this topic especially at the local level. Using data from 41 Romanian counties between 1995 and 2015, our paper aims to find the relationship between t...

Emotions are an integral part of human life. Different situations in our lives affect changing emotional state. It is believed that human facial expressions is distinctive enough to be a part of analysis that allows for assessment of emotional state. The article describes an innovative research conducted by scientists team. As input data used in movies recorded speed camera at speed of 1,000 frames per second in high definition. Registration of a human face took place during the application of the stimulus causing...

At European level it has been underlined the fact that the influence of climate changes on the productivity of the Scots pine will have a significant negative impact, which will lead in turn to important economic losses. According to the IUCN classification, in some vegetation areas from Romania, the Scots pine presents a high vulnerability to climate changes. Taking into account that the analysis of tree rings offers objective information on the way trees react to climate variation at spatial and temporal level, ...

This study focuses on the analysis of the impact of land use changes on the flood regime in the Myjava River basin located in the Western Slovakia. The Myjava River basin has an area of 641.32 km2 and is typical for the formation of fast runoff processes, intensive soil erosion and muddy floods. The main factors responsible for the problems with flooding and soil erosion are location, geology, pedology, agricultural land use and cropping practices. A GIS-based spatially distributed WetSpa rainfall-runoff model was...

This article looks at courtyard spaces in large scale housing estates as places to support social cohesion, by the same time promoting sustainable development. Being planned as multifunctional spaces, courtyards in large scale housing estates in Riga now face lack of activity, are overcrowded with cars and green areas are often described as monofunctional and in bad condition. In the cityпїЅs territory planning documents the land-use of courtyard spaces varies between green territories, residential development ter...

Historically, the local administrations in Romania have not had a tradition of allocating significant amount of funds to environmental protection. The allocations, however, increased after the accession of the country in the European Union. While up to 2010, the environmental protection expenditures were included in the local development and social housing budget chapter, as of 2011 the local budgets received a dedicated budgetary section. The impact of these expenditures has not been assessed comprehensively espe...

As a result of the massive industrialization, the eastern area of the Jiu Valley presents a significant degradation on the environment factors especially on the soil and water. The influence of mining activities on the environment begins with the prospecting and mining activity of the mining deposits and increases with the development of the productive activities. In the Eastern part of the Jiu Valley there are two active mining fields of a total of seven. The choice of the sites for the mining perimeters and the ...

The wheat is one of the most important crop in the world, the area cultivated exceeding 200mil ha. One provocation for researchers is represented by the question "In the conditions of continued growth of world population, how can to improve the wheat yield in the condition of maintain or decreasing the cultivated area". The answer can be offered by the seed treatment with cold plasma. This paper contains the results of research regarding the using of cold plasma for wheat seed treatment. The research was performed...

In a forest ecosystem pine plantations, the National Park lower Kama Natural expansion of the path network and Parking areas, is characterized by an increase of stages of digression that slows down all the process of development of components of forest natural complexes. With the increase in recreational forest use and loads increases the number of trees with mechanical damage. Traumatized trees colonized by pests and diseases. There is a decrease in the number of healthy trees and an increasing number of worst . ...

The main purpose of the paper is to analyze and assess the past and prospective development of renewables in Poland in current market and under legal, social and economic conditions. To achieve this goal in the first part of the research the structure and changes in Polish energy balance are analyzed in long-term perspective including the years 1965-2015. In the second part of research the relations between particular energy resources are examined and described in the context of present environmental situation in ...

The generation and occurrence of surface runoff from a slope is driven by many factors, such as the slope gradient, the physical properties and current state of the soil, the type and density of the vegetation cover, and the intensity and duration of rainfall events. Within the study experiments with a rainfall simulator were focused on an analysis of the impact of a changing slope gradient on the generation of surface runoff and the amount of eroded soil material. The experiments were conducted in laboratory cond...

The production of electricity and heat is inextricably linked to the emission of gases, dust and other substances harmful to the environment. The size of this issue depends on many factors. The most important ones are: the type of fuel used in the production of energy, the type and age of generating installations, the technology used and the type and effectiveness of purification systems. The basic problem of power industry is the need to generate the right amount of energy needed for economic development, while a...

The risk assessment of buildings in mining areas is being related to the adoption of appropriate measurement methods. These facilities should be properly analysed for the threat to mining activities. The surveys having conducted on the area subjected to continuous deformation caused by underground mining, allow to determine the impact of this exploitation on the buildings located on the soil surface. Surveys are often the only source of information on the impact of exploitation on local infrastructure. Surveys met...

Urbanization is a global process most widely spread in the second half of the 20th century. In 2009, the urban population was equal to the size of the rural population and its importance is growing now. City conditions are so specific that at present some scientists note the excistance of processes that form a new adaptive type of man at the phenotypic level пїЅ urban type in addition to already existing high-mountainous, arctic, temperate latitudes and tropical types. The main groups of factors that affect the st...

Groundwater constitutes the largest reservoir of freshwater in the world, representing more than 97% of all freshwater reserves available worldwide (excluding glaciers and ice caps). The remaining 3% is composed mainly of surface water (lakes, rivers, wetlands) and soil moisture. Until recently, attention for groundwater referred mainly to its use as drinking water (eg approx. 75% of people in the European Union depend on groundwater for water supply), but also it was recognized that they are an important resource...

The correct design of the construction equipment objects and their usage plays an important role in the overall efficiency of the construction with regard to the execution time, the resulting price, performance of workers on the construction site and use of deployment mechanisms. During the construction is the possibility of using alternative sources in the design of construction equipment, which may contribute to the overall efficiency of the construction. The article gives an example how to proposal a suitable t...

Information in the public real estate management is very important. This affects, among others, rational decision-making. Lack of sufficient information may cause that the decisions that have been already taken will be considered as deficient. The scope of required information depends mainly on the stage of the process of real estate management and its purpose. Management processes are entwined with the geodetic service of real estate management. Therefore, there is always a change of information about the land in...

In the process of documenting cultural heritage, traditional techniques have left their place to digital techniques, as their efforts to acquire the right data in the shortest time have developed in technology in recent years.The most common of these techniques is the terrestrial laser scanning technique and the terrestrial photogrammetry technique. In the documentation of cultural heritage, the level at which these methods are used today is quite pleasing. The greatest advantage of these methods is that it enable...

Within the global hydrological cycle, by redistributing the water masses, there are variations of the gravitational field as a result of changing the subsurface density and the atmospheric masses. For the use of gravimetric data in the hydro-geological modeling it is necessary to correct the direct and indirect effect of gravity due to the altitudes at each point on the topographic surface. Also, based on the variation of the gravitational field according to the selected time intervals (monthly, seasonal, yearly),...

The concept of sustainable development has an increasing influence on the implementation of innovative solutions processes. On the other hand, technologies are an important factor driving development, not only economic but also social and ecological. The aim of the article is to present the importance of the creative process during implementation of geothermal water deironing technology for sustainable development. There are many water deironing technologies available on the market. However, only a few of them are...

The use of pneumatic energy in industry as well as in the tertiary system is quite frequent representing 10% of the industrial electricity consumption in the European Union, the life span of compressors being relatively long, namely between 14 and 16 years depending on the installed power. Although the compressed air demand of a coal mine is covered by performant compressors manufactured by well-known producers there still are multiple possibilities to increase their energetic efficiency. The working method is con...

The laser meter of super small rock displacement under the influence of gravitational forces from the moon and the sun allows registering the regular fluctuations in the Earth's crust. These fluctuations provide small difference in the distances between the rocks edges in the two orthogonal directions inside the shaft structure drilled in the rock. Laser-based displacement meter converts the distance change into the increment of the phase difference in the two light beams in the interferometer. The photo detector ...

Industrial waste is a very important environmental problem. It is the result of business activities carried out by man. Waste is practically manufactured at every stage of production and service activities. In many cases, waste includes very dangerous and toxic products that negatively affect the soil, air and water. In Poland about 90% of all waste is industrial waste, coming mainly from mining, metallurgy, power industry, chemical industry, processing industry, food industry and others. This waste causes a very ...

The article presents new data on the impact of dust emissions in cement production of the Open Joint Stock Company "Yakutcement" (Yakutia, Russia) on chemical and microbiological properties and enzymatic activity of frozen forest soils in Central Yakutia. It is established that as the emission source approaches and the dust load increases, significant alkalinization of soils takes place (the pH increases in litter from 7.11 to 8.40, and in humus horizons from 7.05 to 7.75) as a result of the accumulation of free c...

New materials based iron powder, with several addition elements obtained by powder metallurgy. The sample were obtained by compacting of 500 M Pa , obtaining a sampless and sintering in dry hydrogen atmosphere at the different temperatures. The sintered samples were metallographic prepared by polishing in order to investigate the porosity and evaluate the microhardness of individual grain and structural constituents. I am studing the effect of addition elements on Rockwell hardness and microhardness. Hardness is t...

The purpose of this study was to identify the factors of influence in alluvial deposits due to the anchoring of barges in the vicinity of river ports. The problem of analysis was identified at the anchorage of the barges near the Galati Mineral Harbor on the Danube River. The area of the navigable channel located downstream of the mineral port is affected by alluvial deposits. Major problems occur in the summer months, when Danube waters are very low. Analysis of these issues was done with the SolidWorks Flow modu...

The objective of the paper was to emphasize the influence of the biological activity on the structural improvement of the compacted clayey pedogenetic horizons of two Chromic Luvisols, by the organic matter bioturbation. The researches were performed on two Chromic Luvisols from Romanian Plain, where the mean annual temperature is 10.5oC and the mean annual precipitation is 548 mm. The analytical data showed that clay content increased from the top layer of both soil profiles (28.9% in P1, and 29.8% in P2), to Bt ...

The coal gasification process is currently developed as one of clean coal technologies. Gasification is a high-temperature process (above 800 пїЅC) in which the coal reacts with a gasifying agent, e.g. air, oxygen, or water vapor. As a result, under conditions of elevated temperature and pressure, chemical bonds in the molecular structure of coal break up and the mixture of water vapor, oxygen, carbon monoxide, and hydrogen, commonly known as syngas, is produced. The chemical composition of the obtained syngas is ...

B?r?gan Plain, located in south-eastern part of Romania, is bounded in the south and east by the Danube meadow, in the North, by the Siret river lower meadow, in the west, is bounded, on the north to the south, by the Buz?u river meadow, S?rata valley, ObпїЅr?ia Mosti?tei, Pas?rea valley, DпїЅmbovi?a river, and finally the Arge? river meadow, this limit (particularly those starting from the south of C?lm??ui river) overlaps the interference between the forest-steppe and the restricted forest formations. From a cli...

The objective of the study was to increase the solubility of amiodarone hydrochloride by complexation with hydroxypropyl-пїЅ-cyclodextrin. After complexation a cyclodextrin/amiodarone inclusion complex was formed. The use of media containing surfactants is a suitable solubilizing method and as a result, a non-ionic surfactant - Tween 80 and an anionic one - sodium lauryl sulfate have been used. The dissolution profile of amiodarone hydrochloride and that of the inclusion complex, regarding the release of the activ...

Digestate is a liquid residue from anaerobic digestion in biogas plant. Digestate contains a high proportion of mineral nitrogen and other macroelements and microelements necessary to plant growth. Recycling of nutrients contained in digestate back to the soil is considered as the most suitable utilization of digestate. The digestate used in experiment was taken from agriculture biogas plant which uses pig manure and corn silage as input raw materials. This paper presents the results of laboratory pot experiment i...

This work has pursued the accumulation process of aromatic compounds such as esters in three varieties of Romanian native wines from Apoldu de Jos, namely Feteasc? regal?, Feteasc? alb? and Iordana, obtained by fermenting them in a microvinification system, in a bioreactor equipped with temperature sensors for pH and CO2. The pectolytic enzymes Enozym flavors (3g/100 kg) and selected Vinartis ferm yeasts as Saccharomyces cerevisiae strain were used for the alcoholic fermentation. To identify and quantify the ester...

This paper focuses on the influence of the fiber glass functionalization agent on the properties of the polymer composites. Thermoplastic polymers are novelty materials, with special properties, depending on the type of elastomer, the degree and type of functionalization agent of the reinforcing material etc. Thus new impact and flame resistant advanced materials were developed and characterized. The polymers chosen for this study were polyamide (PA), a thermoplastic polymer that has high temperature resistance an...

This paper aims to highlight the production characters of two cultivars of watermelon planted in grafted and in non-grafted culture, starting from the premise that vegetable grafting represents the most common biotechnology for European and Asian countries, where crop rotation is no longer an option and available land is under intense use. The researches were conducted in 2016 at Research - Development Center For Field Crops On Sandy Soils D?buleni пїЅ Romania, under field conditions, on two cultivars of watermelo...

Global warming and climate change are two of the main problems facing the mankind. 70% of cities are dealing with the effects of this phenomenon and nearly all of them are at risk. The larger cities create over 70% of global CO2 emissions and consume 2/3 of the worldпїЅs energy, so the focusing on the solution on global warming is heavily depending on future act in major cities. Urban density presents a greener way to live. Because the concrete surface is expanded not only on horizontal but even on vertical, in th...

The Dolj District is located on Oltenia Plain in the southern part of Getic Plateau. The studied territory which is the northern part of Dolj District is located on the central zone of Oltenia on the high plateau Leu-Rotunda. This area is characterized by varied natural conditions and so is the formation phenomenon of soil. As a result of soil formation factors, within the northern part of Dolj District there were formed soils that have as specific horizon the clayey one, the most encountered being preluvisoils. T...

Two identical hollow fibre membranes used for ultrafiltration as prefiltration stage of water drinking treatment were tested for assessing the efficiency of cleaning, by using hydrodynamic cavitation. Each membrane with outside-in permeate flow direction, and the same molecular weight cut-off (0.097 m) was placed vertically inside glass cylinders. One hollow fiber membrane was subjected tohydrodynamic cavitation and cavitation during backlfushing. For the other membrane no treatment was provided for comparison rea...

The physical properties of salt make excellent conditions to overcome chemical and physical nature of hydrogen. Hence, hydrogen storage in salt caverns is one of the industrial methods except for depleted oil/ gas fields. The hydrogen has the smallest atomic radius in whole periodic table. It can attract the electrons of other atoms very easily which makes it reactive. A good sealing of pipes is a very important issue in underground hydrogen storage in salt domes. The cementing slurry should be pumpable and compat...

The most important problems with a negative impact for Romanian coast, the erosion phenomen, are given by the numerous conflicts between the development of various economic activities and it is necessary to implement a system for preventing the further deterioration of shoreline. Coastal protection systems can be represented by linear structures perpendicular to the shore, called groynes. The groynes trapping sand on the upstream side and in this way, protect the coast behind the sand filet. The protection depends...

The Volga-Ural oil and gas province is one of the oldest oil-producing regions in Russia. The central position in its borders is occupied by Tatarstan, in the territory of which is explored the largest oil deposits of the region. Oil deposits belong to the Devonian sediments, and in a lesser degree to the Carboniferous and Permian deposits. Despite the high degree of research of the region, the origin of oil deposits still one of the most controversial issues. Most researchers consider that the source of oil is th...

Studies by and X-ray microanalysis and the magnetic methods showed the distribution of impurity elements over the scan area. There were identified phases containing copper, nickel and copper, nickel and cobalt and also the inclusions with a high content of copper and nickel. The concentration of individual elements was varied from sample to sample. There are areas highly enriched by iron and sulfur. The presence of native elements indicates a change of a temperature mode of processes of ore formation. The position...

Transmission devices damages such as power lines, transmission pipelines, oil and gas transmission pipelines can be divided into those associated with their construction and the ones which result from their location on the property. Among the second group landscape damages are increasingly often mentioned. What is more, the methodological valuation of such damages is extremely difficult. That difficulty stems from the lack of legal and methodological regulations regarding the aforementioned issue. The valuation st...

According to the requirements of Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption and Regulation of the Minister of Health of 13 November 2015 on the quality of water intended for human consumption, drinking water should be characterized by the appropriate concentration of selected parameters, i.e. heavy metals. The specified parametric values should not be exceeded not only in water treatment plant, but also on the particular parts of the production cycle and wa...

Mastitis affects not only the health of milk-producing animals, having a direct consequence on the farm profitability, but it also affects the animalsпїЅ well-being. After performing the microbiologic examination of the milk samples coming from cows diagnosed with sub-clinical mastitis, were isolated 9 different species, out of which 7 species of bacteria and 2 species of fungi. The predominant species were those of staphylococci, Staphylococcus intermedius being isolated in 45,45% of the samples. The second speci...

The studies on the effects of winter wheat cultivation technology and spring barley varying degrees of intensity on productivity, carried out in All-Russian Scientific Research Institute of Agriculture and Soil Protection, allowed a detailed analysis of the positive and negative aspects of these technologies usage, and also they let us define that when the intensification indicators increase the productivity of studied crops increases as well, together with simultaneously reducing of productivity varying on years....