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Maize (Zea mays L.) is the most important cereal after wheat and rice grown widely throughout the world, playing a major role in human diet or as livestock fodder. Water and nitrogen are the most limiting factors for maize grain yield and it is important to evaluate the response of maize crop to irrigation associated to N fertilization in order to obtain high yields and to prevent nitrate pollution. In this context, it was designed an experiment with the main purpose to analyze the variability of yield potential a...

An investigation of the effects of long-term drainage and restoration on the water table level and water chemistry was carried out within the area drained in 1975пїЅ1980 of Vasyugan Mire (Ob-Irtysh interstream area) with a pineпїЅshrubпїЅsphagnum community. The method of statistical analysis included estimation of time series and spectral analysis. In conditions of unsatisfactory operation of the drainage network, a comparative analysis of the data showed that average seasonal levels were close to natural conditio...

In general, there is no natural soil surface that would not be threatened by water erosion. However, a number of methods that estimate the erosive soil risk incorrectly exclude forests and flat agricultural land from the category of areas vulnerable to water erosion. Forests are known for their soil protection functions, when a dense tree canopy interrupts precipitation and decreases the kinetic energy of water drops falling on the soil surface. Moreover, the top organic soil layer in forests has a very good infil...

Natural zeolites and synthetic ones are porous materials characterized by the ability to lose and gain water reversibly, to adsorb molecules having a corresponding cross section diameter (adsorption properties or which act as a molecular sieve), as well as to exchange constitutive cation without a major change in their structure (proprietary ion exchange). The exploitation of these properties underlies the use of zeolites in a wide range of industrial and agricultural applications and in particular in animal nutri...

One of the major problems with exploitation of air heat pumps (ASHP) in the cold season, is frosting of outdoor heat exchangerпїЅs surface. A layer of frost accumulated on its surface, leads to decreased heating performance and energetic inefficiency. To restore the ASHPпїЅs nominal capacity, a defrosting process needs to be conducted periodically. The necessity of this procedure causes penalty energy usage, decreasing already low COP in result. Analyzing commonly used ASHP systems, some possibilities of energy ef...

The problems of sintering process are dust emissions and pollutant emissions, especially SO2. During the actual production in the sintering process emission ceiling limits are exceeded. They are being implemented measures that prevent from breaking SO2 emission limit. The sulfur content of feedstocks influences both the quality of sinter and the pig iron and the amount of SO2 emissions. One of the possibilities is a partial substitution of coke dust with anthracite. World steel production will continue to be domin...

Environmental pollution has become one of the most debated issues of the contemporary times, being a consequence of using imperfect methods in production technologies. One of RomaniaпїЅs areas where the environment has suffered as a result of human activities is the Jiu Valley, a place where the main activity was and continues to be mining. In this paper the authors aim to identify and quantify the pollution sources related to the coal mining activity from the western part of the Jiu Valley and, based on data rela...

The Europe 2020 strategy is the EU's agenda for growth and jobs for the current decade. It started in 2010 and will last into 2020. It emphasises smart, sustainable and inclusive growth. Its aim is to overcome the structural weaknesses in Europe's economy, improve its competitiveness and productivity and underpin a sustainable social market economy. This strategy includes three areas of interest. Smart, sustainable and inclusive growth. One of set areas for this strategy is sustainable growth. We can say, that thi...

The main aim of our paper is to analyze and make proposals on the effective management of individual items that have a significant impact on profit or loss and the possibility of elimination of production risks. Attention is paid to the issue of management of production risks in the manufacturing plant in Slovakia. To obtain the necessary data, we draw information from internal materials. For management, it is important to know what risks it could negatively affect them. Identification, quantification of impacts a...

Agriculture seeks to accommodate the needs of quality, the cultivation of land in harmony with the environment, respecting the life and the balance of the ecosystems. In this context the aims of our work were to contribute to the strengthening of the aspects related to the influence of the rotation and fertilizing purposes with nitrogen on the content in nutrients of the soil, of the elements of the fertility and the production of triticum wheat. Also has proposed to achieve a summary report on the experiments of ...

Transylvania is one of the historical provinces of Romania, located within the central part of the country. This region is characterised by a marked ethnic, linguistic, cultural and religious diversity. The main ethnic groups forming the population of Transylvania are Romanians, Hungarians, Roma, Saxons, Swabians, Armenians, Jews and Ukrainians. Over time, the structure of TransylvaniaпїЅs population varied significantly in terms of ethnicity due to its political and economic conditions. The evolution in populatio...

The theme of this project is the presentation of a model of drawing for civilian surface buildings, in order to start a series of major projects.The piece of land subjected to topographical measurements is situated in the western part of the extended urban area of Timisoara, Timis County. The beneficiary of this project is a multinational corporation situated in the city of Timisoara. As placement is concerned, the piece of land is situated in a rural area, close to the city.This work focuses on the study of topog...

This work was interdisciplinary, so the data provided by the measurements went into the Central Park rehabilitation project, providing graphical support for architects, structural engineers, plant engineers, specialists in landscaping. Baile Herculane is a famous Romanian resort which is located in the south - eastern county of Caras Severin, along the tectonic corridor Cerna Valley, which separates the Mehedinti Mountains from the Cerna-Godeanu Mountains. The Central Park related land is owned by the City Council...

Pectinatella magnifica is freshwater organism, which round-shaped colonies are most often found attached to the different submerged parts of coastal plants and can reach the weight even several kilograms. Usually it can be found in oligotrophic to mesotrophic waters, during the season when water temperature reaches 20пїЅC and more [4]. Although Pectinatella magnifica originally comes from North America, it has recently been known as an invasive species in Europe and part of Asia. The first recorded occurrence in E...

Forest complex is the great asset for the country-owner. This segment of the national economy provides the wide spectre of different resources valuable for many industries of the national economy such as construction, printing, trade, medicine. Therefore it is necessary to form proper technical and technological base with industrial modernization mechanisms to use huge potential of forests fully, keeping ecological standards and norms of rational nature use. In the article the questions of industrial management mo...

The article presents the evaluation of the stability of vegetation in forest ecosystems, in places of mass rest in the woods on a lake in the littoral zone of pine forests of the Mari El Republic. Studies have shown that the amount of coniferous undergrowth ranges from 0.016 thousand PCs/ha to 0,104 thousand pieces/ha, and does not provide the initial stage of the formation of dark coniferous young growths. For deciduous species, mainly birch, in some cases, aspen is characterized by intensive growth, which preven...

This article presents results of the physicochemical simulation of the water-rock system equilibrium and discusses a saturation degree of calcium chloride brines in the Oleniok cryoartesian basin. The analyses show that the chloride brines with salinity of 54пїЅ57 g/L are in the equilibrium (or quasi-equilibrium) state relative to the main sedimentary rock-forming minerals, but the strong brines (salinity above 300 g/L) are undersaturated relative to these minerals (calcite, dolomite, magnesite, strontianite, anhy...

The article presents a study on a geospatial distribution of Catholic sacred buildings within Volyn Oblast in Ukraine. A a map of geospatial distribution of Catholic Churches was carried out by a vector graphics editor пїЅCorelDraw X5пїЅ on the basis of architectural monuments list of national and local importance of Volyn Oblast in Ukraine. Was created a map of geospatial distribution of Catholic Churches within Volyn Oblast in Ukraine and has been calculated their quantity and index of percentage. On the basis o...

Gold deposits in black shale type have huge reserves of hard-gold. The prevailing part of reserves of native gold is in carbonaceous terrigenous deposits in Russia. These deposits are represented by objects of various scales - from small to unique (In Russia пїЅ Olimpiada, Nezhdanin, Natalkin, May; in Uzbekistan пїЅ Muruntau, Kokpatas, Zarmitan, Daugyztau, Amantaitau; in Kazakhstan пїЅ Bakyrchik; in Tajikistan пїЅ Chore; in Kyrgyzstan пїЅ Kumtor; in the United States пїЅ Mather Lod; in Australia пїЅ Bendigo, Olymp...

The global level of urbanization is growing. Some estimates indicate that till 2030 the degree of urbanization will reach 83% in economically developed countries. In this context, large urban areas are already facing with problems due to water and air pollution, noise pollution, forming "heat islandsпїЅ, energy consumption, overload of rainwater collection systems and human health degradation. In this paper are presented the benefits of green roofs and the contribution they play in solving problems in urban areas....

The aim of this three-year study was to determine the effect of different vineyard vegetation cover on organic matter content in the soil, the content of available nutrients and essential soil properties. Soil samples were taken from between rows of vines, where species-diverse mixtures for planting vineyards were sown. For observation, three localities of the Czech Republic with different soil and climatic conditions were chosen (Popice, Mikulov and Znojmo). Two variants of vineyard greening mixes were establishe...

The range of using the electric machines with high speed is increased year by year. It is very easy to explain. The power of electric machines depends from speed and sizes. If we will increase the speed we may decrease the sizes. So, the machines will have more less weight and materials. We may decrease the total cost of unit. But it is in case if we will solve many technologic problems. The main problem is the strength of rotating rotor. It is known that a centrifugal force depends from the speed as square-law. A...

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 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...

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 ...

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...