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The trace element composition of endorheic saline lakes (with total dissolved solids varies from 1 to 590 g/L) of the Altai Region (Russia) is of undoubted interest from the point of view of their mineral resources. Among the trace elements in lake waters, high content of boron (up to 78 mg/L), bromine (up to 820 mg/L), lithium (up to 3.6 mg/L), strontium (up to 13 mg/L), iodine (up to 6.3 mg/L), and arsenic (up to 0.6 mg/L) have been determined. The content of uranium in the investigated lakes varies over a wide ...

This paper presents a research which consists in measuring potential energy which be obtained on the surface of water in motion and showing the phenomenon of пїЅwavesпїЅ monitoring in the Black Sea basin. For this were measured, processed and analyzed the amplitude of the waves, the frequency and the waves direction, more than 12 Mm shore, isobath of 50 m, to the coastal zone. There are described techniques and measurement accuracy durring one year. Also, are presented monitoring and processing data with graphycal...

The scientific paper proposed deals with the reliability analysis of the average usage time of the brake pads as components of the braking system of the industrial front-end loader and transporter machinery used in mining operations in Romania. The research was conducted at the request of several mining companies in Romania, that are using the front-end loader and transporter machinery in their daily operations. The study is based on the empirical information and the preliminary reliability results that were recor...

In the context in which European authorities promote the use and development of rail transport, in Romania, this type of transport is on a continuous decline. To have a better view of the situation, it is necessary to highlight the limitations of the relief in order to reveal some of the Romanian rail system deficiencies. The Gala?i Railway Regional District was chosen as a case study because it includes railroads that run through all types of relief (plain, hill, plateau or mountain areas) and connect cities and ...

The Internet and computer networks development led to the development of data acquisition and monitoring systems, becoming nowadays a necessity. This paper proposes the development of applications to monitoring parameters, both local and remote; the parametersпїЅ values are derived from a micro-weather station. Two interfaces are implemented for monitoring parametersпїЅ values: the first one is a part of a wireless sensors network (named eKoView), and the second one is implemented in C# and running on a color oper...

This study focused on developing a multilevel system of spatial analysis of different types of data to model forest cover. We built a map of forest growth conditions using field data, climatic and morphometric parameters. Landsat images were classified with the help of a forest inventory and field database in order to map of current forest cover. Using Knowledge Engineer Module (ERDAS Imagine), we developed a knowledge base intended for modeling forest regeneration series from a spatial combination of the maps of ...

In this paper we will describe a novel approach for forest management that includes remote sensing based monitoring, simulation and planning. When we think about sustainable forest management, it is important to know the vital facts about the forest, especially the annual increment of the timber volume for each forestry unit. A terrestrial census could deliver the required information, but it is too expensive to be carried out frequently. The alternative is a census based on remote sensing data. In this area we ob...

Using remote monitoring methods, including aerial remote sensing, UAV and LIDAR (remote sensing, 3D UAV imagery and LIDAR) for high-resolution investigations of waves field characteristic parameters near the seaports, gives us the support information for decision making process. Therefore the results obtained in near real-time are useful to create optimal resolution maps for waveпїЅs reflection, refraction and diffraction, depending on necessities. In this paper is evaluated the possibility to monitoring and mappi...

In over 38 percent of the groundwater drinking water sources in Slovakia, iron and manganese concentrations exceed the recommended levels set by Regulation of the Government of the Slovak Republic No. 354/2006 on Drinking Water. Iron and manganese are not considered health hazards, although micro-environments may be supported in wells and distribution systems which harbor microorganisms. The main concern with these metals is the color imparted by the oxidized forms that rarely goes unnoticed by the consumer. In ad...

This paper reports the efficiency of polymer membranes without and with small amount of commercial plant extract involved in removal of nickel ions from synthetically wastewater using a mini-electrodialysis cell. The membranes were obtained by phase inversion technique at room temperature. The structure of the resulting membranes was investigated through Fourier Transform Infrared (FTIR-ATR) spectroscopy and Environmental Scanning Electron (ESEM) microscopy. FTIR spectra show that the peak at 2325 cm?1 shifted to ...

Access to cheap sources of energy has been a foundation of economic development of the modern world. High rates of GDP growth affect the dynamic development of civilization and, inter alia, make technological progress possible due to the increase in global energy consumption. Energy costs and energy availability also have a significant impact on the economic competitiveness of particular countries and regions of the world. Dynamic world economic development, population growth and the widespread use of energy in ev...

The paper aims to present the impact of renewable sources operation on the power distribution network. Different aspects are tackled for the case in point. One of the discussed problems regards their inf luence on the voltage in network buses and power flow on distribution s ystem branches. Thus, po wer flow studies have been performed. The case study refers to a real and complex distribution system. It is managed by an important distribution system operator (DSO). It has been modelled using computer aided power s...

Nowadays, there is an increasing interest in the tight oil reserves. Such kind of oil have the specific physicochemical properties under conditions of natural occurrence [1]. In this article we consider the solution of the problem of preparing geophysical data for modeling seismic inversion on the example of bitumen deposits. The reservoirs occur at a depth between 150 and 200 m. Thuswise, the accurate processing of geophysical data remains actual. The seismic inversion is usually understood as a group of algorith...

Provision of the most comfortable and fast passenger transportation is the most significant goal for any taxi organization. Undoubtedly, the quality of cars and driverпїЅs professionalism is an important factor for the organizationпїЅs success, however, the initial impression of the customer often depends on the quality and speed of dispatcherпїЅs work. Failure to respond quickly to clientпїЅs question or an error during the order processing will result to negative customer views on the organization's ability to p...

Sludge from sewage formats municipal byproducts are considered "undesirable" that focuses remove pollutants from wastewater and can be a danger to the environment.Lupeni dump was born by storing the waste material resulting from the preparation of coal.The material deposited on the two branches of the heap consists of sandstone rocks clay, marl, carbonaceous shales and sandstones.From the analysis it is observed that: the reaction is slightly alkaline soil (pH = 7.4); humus content: medium to good; containing coar...

One of the main factors influencing the accuracy of the obtained lumber is the rigidity and stability of saws. In the process of sawing woodcutting tools heated. This phenomenon can cause a loss of rigidity and stability of saws. A log frames and band saws negative influence of heating can be compensated the additional tension and setting directing. Particular importance is the heating of circular saws due to the appearance of a temperature gradient along the radius in the process of sawing wood. Upon reaching the...

Processing the waste paper produces huge amounts of waste - papermaking sludge. This kind of waste includes around 50 % of inorganic material and high proportion of water. Its current economic recovery is very limited, which affects the overall efficiency of recycling paper. However, the elementary and chemical composition has a high potential for wider and more economically efficient use in various industrial fields. The object of this paper is research of composition and physical properties of such sludge from o...

Background: Currently develops a range of new and innovative construction systems, presented as modern methods of construction (MMC), which has the ambition to improve the buildings sustainability throughout their life cycle. Regarding the implementation modern methods of construction in Slovakia, assembled buildings based on wood, also called green buildings, seem to be the most preferred construction system. Methods: In the study, presented in the paper, were searched already built and occupiedfamily houses base...

The main goal of this present study is to determine the performance you can obtain from the implementation of fixed Building Integrated Photovoltaics (BIPV) on one family houses. The study will use a comparative method on one family houses between a flat roof, and a piched roof with two slopes, with different orientations of the plot. These various scenarios respond to urban implementation rules that are particular in urban planning. The calculations were made for a single family house with a built area of 100sqm ...

It is known that the medium-grade and low-grade iron ores before the direct use in metallurgical furnaces are almost always concentrated. For ore-grain release all run-of-mine ore is crushed and milled. The result of such operations is a finely ground concentrates, which are then subjected to clotting. Among the known methods of clotting of the wide-spread high-temperature methods - sintering and pelletizing followed by baking raw pellets. During these processes, there is a partial removal of detrimental impuritie...

The paper deals with the topics related to the construction of buildings and facilities in the selected mining areas and protected areas of mineral deposits which purpose both relates or does not relate to the mining activities. Buildings and facilities are within the territory of the Slovak Republic. The initial part of the article will briefly describe the issues connected with building industry challenges in such areas but the major objective is the analysis of opportunities for construction of similar faciliti...

The fractional composition of the chamber product of sulfide flotation was investigated. Grain size of the product varies from 0.2 to 0.05 mm. The characteristic of mineral composition showed that forsterite content is about 53%. The amount of other silicates (pyroxenes and garnets) is more than 20%. Two morphological generations of baddeleyite have been identified, it will be necessary to take into account physical and technological properties of the generations when developing technological solutions for gravita...

The paper presents some aspects about the biodiversity of the forest habitats and species adaptations to the ecological conditions on the shore of Danube river. The territory under research is located along the Danube river, in the Southern of Dolj County, between localities Rast and Gighera. Related to the humidity, temperature and soil reaction, the flora of the forest habitats of this region has a hygrophilous, meso-hygrophilous, mesophilous, meso-thermal, and slightly acido-neutrophilus character. Following th...

The solving of the project of the Ministry of Agriculture of the Czech Republic dedicated to sustainable agricultural management in the North Western Bohemia is under way from 2015 to 2018. The Brown Coal Research Institute is the main participant of the project. This article briefly summarises new results of the research of the Most Basin localities restoration problems. The main attention is devoted to the research of experimental areas founded in different dump localities with different dump rocks and different...

Ensuring stability of economic development, an energy and ecological safety is connected with increase in energy efficiency and decrease in power consumption of economy. The main indicator of resource intensity is power consumption. power consumption characterizes amounts of an energy consumption and fuel on the basic and auxiliary engineering procedures of production of products, performance of works, rendering services based on the set technological system. The Russian economy is one of the most power-intensive ...

In our century and especially in recent decades the noise level reached an increasing width, becoming a polluting source of the same severity as chemical pollution. Increasing power and work speed of equipments has contributed to diversifying and increasing the number of noise sources and thus increased number of people exposed. Noise generating sources in technological procedures of processing may be of continuous nature (pneumatic energy production, water transport) or intermittent (systems for transporting mine...

Animal bodies (mammalian and human body) show a great capacity for adaptation, both to the fluctuations of environmental factors and also regarding the nutrition, increasingly modified. General Adaptation Syndrome (GAS) of organisms, began to be studied in animals and also in humans. In human bodyes, GAS is studied because a number of disease with great significance psychologically, physiological but especially medical, appeard. In both categories of bodies, GAS is investigated by the presence of markers that high...

Even though land cover and use changes, climate changes and altered use of energy, known together as the пїЅglobal changesпїЅ have been studied intensively, their relationships are still under debate, especially with respect of assessing the anthropogenic contribution. The study relies on the hypothesis according to which poverty and lack of environmental awareness could lead to disastrous environmental impacts, with adverse economic consequences. Starting from an assessment of deforestations based on GREENPEACE d...

The appearance of species imported in the EU, and so on the Romanian market, led to a change in consumer preference towards new species of fish (tilapia, African catfish, pangasius) and aquaculture products (shrimp, clams, oyster, etc.). One of these species is tilapia (Oreochromis niloticus) which, at European level, the import volume is about 10,000 tons / year. In order to reduce imports and increase the competitiveness of aquaculture in the EU have been taken strategic measures to develop technologies that int...

The use of synthesis chemical substances in agriculture for increasing agricultural production and ensuring food across the globe is a process that has as a reverse negative effects on the environment and human health. According to the research conducted widely it has proved that, these synthesis substances that sometimes are toxic (pesticides, herbicides, etc.) have a negative influence on human health ultimately, also by polluting the environment, which represents the biggest challenge of the humanity today - cl...

Non-electrical equipment has been used for over 150 years in industries in which likely to occur a potentially explosive atmospheres and a great deal of experience has been gained in the application of protective measures for reducing the risk of ignition of such atmospheres to an acceptably safety level. For using non-electrical equipment in potentially explosive atmospheres, it became necessary to produce ignition protection concept standards which clearly defined these protective measures and incorporated the e...

Worldwide, 81% of cultivated soybeans is genetically modified. Soy is just one of the 68 products on the European list of approved GMOs for import, along corn, rapeseed, cotton. Cross-border exchanges lead to the introduction of GMOs on the market, requiring careful monitoring of food with the help of appropriate testing techniques. According to the EU legislation, the labeling of foods containing genetically modified organisms is mandatory, therefore being set a limit of 0.9% per ingredient. The research presente...

These researches were conducted in the greenhouses resort didactics of the faculty of Horticulture and Forestry in Timisoara, using cuttings of Parthenocissus quinquefolia that were purchased from the mother plant from the same location. Four substrates were used for rooting namely sand, peat, perlite, perlite + peat, the cuttings were planted and treated with rooting substance of Atonic and Radistim. During the study was monitoring the rate of rooting of cuttings, aiming at influence of substrates and rhyzogene s...

The purpose of this paper is the time tracking behaviour of hydrotechnical structures by establishing basic displacements to basic slice and previous vertical slice, processing these measurements and draw conclusions on the behaviour of the analyzed works. As a case study was elected the Vidraru dam located in Arges County, being one of the most important dams in Romania. The Vidraru dam, built on the Arges River, is an "arch" dam with double curvature, being the highest concrete dam in Romania. The storage lake f...

This paper shows laboratory researches in order to extract arsenic and cadmium from the polluted soils. Research is based on preliminary studies regarding the usage of microorganisms which were selected from the same sampling points of soil assays for decontamination of soil polluted with heavy metals (As and Cd). The soil samples are subjected to the cleaning process with different extraction solutions (9K medium and chemical solutions) stirred 200 rpm for 72 hours at a controlled temperature (32 пїЅC). During th...

Food safety has become a component of food quality and arises from the need to protect consumers. This means that products to be sold, must be safe, a requirement which is found both in EU Directions and National Legislation. The Food Hygienic General Direction 93-43- CEE stipulates that the food companies including those of fresh fruits, should create a planned and well informed system called пїЅThe Planning and Achievement of Safety productsпїЅ. The system allows a self-control of their own products based on Haz...

Research aimed at testing new PIONEER oil rape hybrids cultivated on three different fertilisation rates in the soil and climate conditions of the BanatпїЅs Plain, near Jebel, Timis County, Romania. The soil is a typical cambic chernozem, moist phreatic, pH 6.21, and 2.07% humus in the Ap horizon. The climate in the area is moderate continental with little Mediterranean and ocean influences favourable to oil rape cultivation. The trials organised between 2014 and 2016 were bifactorial, with Factor A represented by...

Recycling vegetable and animal wastes from households, livestock farms, vegetable farms, industry and timber processing, mushroom cultivation, and so on and using them for fertilizing vegetable crops in various forms (mixtures with organic and inorganic matter, compost and green fertilizer) is a permanent concern of researchers and farmers worldwide.In the glasshouse, it was studied influence of four types of compost (composted leaves, mixture of pieces of grape woods and tree branches, waste mushroom compost and ...

The importance of the ecological exploitation of the treated sludge consists in the fact that it is generated in the treatment plants 365 days from 365, 24 hours from 24, but unfortunately the sludge exploitation is limited nowadays, no matter the chosen option. Practically there are no standard solutions, all the research options, respectively the exploitation of the sludge require costs and cooperation with the thirds, plus the sludge quality must conform to certain values imposed by law. The difficulty elements...

This paper presents results of research on feeding behavior of paddlefish (Polyodon spathula, Walb. 1792), performed at the Fish Culture Research and Development Station Nucet, DпїЅmbovi?a, between 2002 -2007. The results confirmed the planctonofag character of this species. Paddlefish food consists primarily of zooplankton, insects and insect larvae, plant debris and detritus, identified in the intestinal contents. Feeding behavior is differentiated by age and size of fish. During the first days of life, juvenile...

Miscanthus sp. is a perennial grass cultivated in the European Union with multiple uses. It can be used as a commercial energy crop or as a resource for easy construction materials and isolation. It can also be used as a source of CO2 capture and restraint. Miscanthus is a plant which demand low needs for fertilization, adapting easily to less fertile soils. In this way it was taken into study the behavior of this species on a sandy soil, poorly fertile from Southern Romania, under the influence of some doses of n...

Energetic crops are increasingly used as renewable sources of energy as well as for their ability to fix and accumulate carbon in the soil. Willow culture for biomass promotes rural development and environmental protection, especially if it is established in areas less favorable for agricultural crops. Researches from this work has been carried out in a wide range of genotypes of Salix sp. cultivated on a deposit of ash resulting from coal burning to Isalnita Power Station, near Craiova, Romania, over a period of ...

The Cukar 2 east ore body represents the latest explored ore body within the Mucim Mine with possibilities to enter exploitation stage in near fututre. Calculated ore-bearing coefficient in the Cukar 2 east ore body was 0.40%, meaning that within the ore body boundaries 60% of mass is not mineralized somehow, which is compatible with remaining three ore bodies within the Buchim porphyry copper mine. The calculated value of variation coefficient (V) has shown value of 71.39% that is in the range of 43-100%, which d...

The paper presents the need for the purification of polluted air from the highly polluting processing technology of an industrial shop. (paint shops, foundries, welding constructions, forging, etc.). The advantages of using ultrasounds in the pollutant air filtration and purification process and an ultrasonic filter designed are presented. The main computational and construction elements of the ultraacoustic system used in the design of the air filter are presented in the paper. Paper insists in the design of the ...

The effect of mastitis on the content and composition of the milk lipids is not fully known yet, the literature presenting numerous contradicting data. In this work it was aimed to emphasize the modifications occurred at the level of the composition in fatty acids and cholesterol, as well as to establish the level of peroxidation of lipids in the milk resulting from cows with sub-clinical mastitis as compared to the milk resulting from healthy cows. Thus, within the researches carried out in 2016 in Olt county the...

With a cultivated area of over 2x108ha, wheat is the largest crop worldwide by cultivated surface. For wheat crops, the production suffers loss caused by weeds, and depending on the weeding level, the fertilization level can surpass 50% (1). Weed management is just one of the technological components present in any crop technology. Given the biological particularities, wheat crop is mainly weeded with dicotyledonous species. The objective of this paper is the comparative evaluation of the classic method for determ...

The main purpose of this research is to analyse the influence of different natural aggregate sources, as well as different bitumen types, on the adhesion and affinity between the two materials and on the properties of stone mastic asphalt (SMA). The aggregates used in this study were both fine (sand 0/4) and coarse (4/8 and 8/16), extracted from four different natural rock quarries in Romania, selected after a geographical, geological and geomorphological analysis. From a petrographic point of view, the rocks extr...

The purpose of this paper is to determine the chemical composition of meat from two species of fish (Cyprinus carpio carpio - Linnaeus 1758 - carp and Svizostision lucioperca - Linnaeus 1758 - pike-perch), fresh and preserved in different ways at the end of the season growth, autumn and spring after the cold season. The changes in the quality of preserved fish meat through refrigeration, salting, freezing and smoking compared to the fresh, one have been analyzed so that the consumer benefits from safe food and a r...

The building sector is interested in developing new types of structures capable to resist seismic loading. There is introduced a new structural detailing of mix steel-concrete structures. The innovative design consists in use of the precast concrete slabs and steel frames, assembled by post-tensioning, of the prestressing procedure for the steel members and also a different column-beam connections having resilient characteristics. Each of the listed features is also special. The prestressing reinforcement is locat...

Wheat resistance to heavy metals (HM) is an urgent ecological problem and it can limit crop production around the many countries in the world. HM is considered as an environmental factor of the anthropogenous nature which influences growth and development of wheat. New approaches are focusing on using of a genetic pool of wild-growing types of crops as an introgressive genetic material for increasing wheat adaptability to HM. In the model, laboratory tests of HM influence on wheat growth used the grain yield of 20...