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We considered the problem of training personnel of mining enterprises in effective application of personal protective equipment for respiratory organs - regenerative self-contained self-rescuers based on chemically bound oxygen. The engineering design task of constructing a reusable self-rescuer simulator with chemically bound oxygen supply in the absence of regenerative chemical agent was formulated. The paper describes a new design of a self-contained self-rescuer simulator, which is equipped with electric heate...

The foundry sand wastes (FSW) are likely to constitute as raw material for the manufacture of cement mortars or concretes at a low cost. For this reason, present work has main objective to use the foundry sand wastes in self-compacting mortar as a fine aggregate (by a partial sand substitution). An experimental tests were carried out to evaluate fresh (slump test) and hardened (bulk density, compressive and flexural strength and elastic modulus) properties of SCMs based on FSW. The Natural Sand (NS) is substituted...

The sea coasts and estuaries are especially exposed to the oil pollution harmful influence as they frequently suffer from oil spills relating to the tanker accidents, port and off-shore activities. The objective of the present research is to examine the rates of spilled fuel oil natural destruction on geographically different seacoasts and to assess their self-cleaning capacity. For this purpose, a number of contaminated sectors of the Atlantic coasts of France and Spain (areas of ?Erika? and ?Prestige? tanker acc...

In the northwestern Black Sea the Danube deep sea fan has an extent of over 150 km and stretches from several hundred meters water depth down to the abyssal plain at 2200 m water depth. This large turbiditic system comprises a series of channel-levee systems, with deposits of mass transport. Its evolution was due to the fluctuations of sea level and sediment inputs. Sedimentary and seismic facies identified on the Danube deep sea fan are similar to those that characterize most fans of this type. In the study area ...

This article deals with a possibility of extraction flotative Ag-concentrate from the waste material, concretely slag arising from processing of silver and copper in the second half of the twentieth century, which is deposited around the city of Kutn? Hora in the Markovi?ky region. A cationic octadecylamin was used as a flotative collector. The aim was to reach maximum metal content of the concentrate as well as maximum yield of Ag into concentrate during a decrease of raw material capacity. An anion active collec...

The purpose of the research is to find adequate solution against rising damp in historical buildings with minimal energy loss. The improvement in this case is the use of ventilated air channels. A special group of historical buildings are churches because they do not use routines as for example museums, galleries. The amount of possible causes of moisture problems in historic masonry underlines the complexity of this phenomenon. Evaporation is an important factor in rising damp. The surface of an affected wall con...

In this paper a new method of dual-polarimetric SAR image coregistration procedures is proposed. Both cases - coarse and fine coregistration are considered. In the proposed approaches the widely used coherence parameter is not applied. Instead, the dual-polarimetric signatures are exploited. They allow to identify location of strong point scatterers within the SAR images. These scatterers can be further used in coregistration procedure as reference points. The developed algorithms described in this work were teste...

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...

According to the geological maps of southern Spitsbergen, faults commonly run parallel to the glacier valleys' axis. General faults orientation is N-S and NNW-SSE. This may suggest, that the origin of glacier valleys is related to tectonics due to development of structural landforms on individual faults. The network of ground penetrating radar (GPR) profiles based on measurements on three glaciers of southern Spitsbergen: Recherchebreen, Hansbreen and Werenskioldbreen, was processed and interpreted for the presenc...

Modelling studies continue to play an important role. One of such study is stress determination in the reinforcement bars of reinforced columns and determine column's axis deformation. The article presents measurements results of control points located on the model of reinforced concrete column. The column was compressed in few series till it's destruction. In this studies, photogrammetric method and total station measurements were used. The main goal was to use photo points located around column with known coordi...

Hydrostatic transmissions create compliance between rigid functional parameters of a power-machine, e.g. an electric motor, and flexible functional parameters of the work machine, e.g. a crane hoist. Hydrostatic transmissions equip fixed or mobile machinery and guidance systems for: aviation, artillery, wind turbines, hydraulic turbine blades, etc. Any hydrostatic transmission includes at least two positive displacement machines: a pump, called transmission ?primary? and a motor, called transmission ?secondary?. H...

Changes of the lake shoreline of glacial lakes in Tatras are significant indicator of postglacial evolution of their lake basins. In this research we evaluate the lake shoreline changes of the tatras lakes on the historical and actual analysis of the orthophoto maps from period 1949-2015. We very precisely evaluated the dynamics of the lake shoreline with application of retrospective analysis of remote sensing materials from that period. In some cases it led to quite marked shrinkage of open water lake areas as th...

The organic food market is one of the most developing food markets both in Poland and in the world. In 2002-2010 the value of organic food market in the world increased by 23 billion. Dynamic development of the organic food market is related to a great demand for organic food, particularly in the European Union. In Poland, the organic food market is changing as a result of the increase of the demand for organic food which is preconditioned with changes in the consumers' likes concerning the food quality and with c...

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...

Biochar is carbonized organic matter, which is prepared by pyrolysis and it content high amount of carbon. This material is currently very often mentioned in carbon sequestration and as an additive improving physicochemical and biological soil functions, especially soil aggregation, conductivity or pH. Thus biochar could be usefully toll for decreased erosion risk. The influence of biochar on soil microorganisms is still big question. Results of scientific work differ much. Problematic component of biochar is arom...

Great problem of mechanical hard rock mining is low durability of mining tools. In Department of Mining, Dressing and Transport Machines, AGH UST in Cracow new solutions of mining tools and their holders were developed. In paper, a special tool to replace traditional rotary pick (so called crown-shaped pick), new lubricated holder for rotary-tangential picks, asymmetrical disc cutters, results of laboratory, field and industrial tests were described. Crown-shaped pick has the same type of handle as standard soluti...

A mechanism of core blocking that is drilled out during the coring from deep wells in the direct and indirect flushing with drilling mud is examined. Using methods of technical mechanics and hydromechanics, a formula for flow rate excluding a core blocking is obtained during the backwashing. The value of necessary flow rate depends on not only a direction and intensity of fracturing of rocks, geometrical and density parameters of core pieces, but also on structural strength of drilling mud. A mechanism of core sel...

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 world?s 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 the ...

Formed under various natural conditions, soils are different from each other with respect to characteristics and fertility from region to region. That is why from ancient times it has existed and evoluated the preocupation for the appreciation, choosing and using the best lands for agriculture. Dolj County belongs to the temperate climatic area, but its position and the depression character of the field which it occupies in the neighbourhood of the bend of the Carpatho-balcanic mountainous chain, determines, on th...

The article presents modeling data on taxes and average annual salary in Bulgaria. This information is stored in a created relational database containing twelve tables. Updating the database is done each year, and the respective new records are entered into the indicated tables. The data about the taxes that are included in total expenditure of households by expenditure groups, average annual salary in Bulgaria and average annual salary by regions (North-West, North Central, North-East, South-East, South-West and ...

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...

This study reports the assessment of the pollution to urban soil pollution in few major cities of Romania. In the past few years, in all over Romania an increasing trend could be noticed related to the scientific interest for soil contamination due to anthropogenic activities. Nevertheless, a research aiming to assess a quality screening report related to the presence of contaminants in top soils of urban areas due has never been conducted and the public society is deprived of such information in all cities. The a...

Renewable energy is playing an important role in the development of any modern country. Numerous renewable energy sources are now harvested on a large scale with the main purpose to reduce the greenhouse gas emissions and diminish the use of fossil fuels. European Union member states agreed to achieve important quotas of renewable energy in their consumption until 2020 in energy and in transportation. Romania has the legislation aligned with the EU directives, therefore the government has issued specific legislati...

The article presents the results of research on basic parameters of screw-type device designed to lift off, mix, and re-suspend sediments which build up on the bottom of the oil tank. When crude oil is stored in tanks, invariably solid particles and heavy paraffin sediments are deposited. To prevent any sediment from building up on the bottom of the storage tank and to ensure all oil requirements are met, screw-type devices or propellers which are installed at the first horizontal ring of a tank are basically used...

This article presents the results, obtained from testing an equipment used to obtain biogas and biochar from biomass, developed and manufactured based on a patent developed on a research and development project by the IHP staff. A modern way in order to produce ecological and cheap thermal energy is to utilize biomass through micro-gasification process called TLUD (Top-Lit UpDraft) with high conversion efficiencies and emissions of CO and low PM2,5. A new way for producing energy from biomass is the CHAB concept (...

The technology of microbial fuel cells (MFC) makes it possible to obtain electricity by eliminating and utilizing wastewater components [7]. The promising biological agents in the MFC are microbial associations. The presence of strains of different species of microorganisms allows consortia to consume a much wider range of compounds. Multicomponent makes them more resistant to negative environmental influences. An example of such associations is the sludge of treatment facilities. As part of most wastewater enteri...

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 54?57 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, anhydr...

Large rotary drum machines are often used in technological lines for continuous production. These are complex structures which during operation are exposed to stresses and deformations under the influence of temperature and stress. To determine the geometric parameters of such units in this paper we propose to use a total station. The basic idea of the method is remote real-time geodetic measurement of the machine parameters in the reflectorless mode. The task posed is solved by simultaneous measuring of the point...

This article is about a new data acquisition system and procedure used for electromagnetic pollution assessment and warning, with mobile equipment, placed inside some electric high voltage power stations in the Central Region of Romania, as well as the software involved and interpretation of results. The whole system and procedures, as well as all the measurements were performed by our team from the Politehnica University in Timisoara. The acquisition system and the software involved are developed by our team. Mai...

The article deals with the types of facility management approaches to the management and maintenance of utilities. It addresses the basic kinds of management and maintenance of these buildings in relation to the valid legal regulations of the Czech Republic, and it also discusses the need to solve these problems mainly because of the wear of buildings due to time, mechanical damage and weather conditions. Neglect of timely maintenance and repairs reduces the utility value of the building, which is contrary to the ...

The technology of extending the service-oriented architecture of building configurable information systems is considered. The actual task is to increase the flexibility and efficiency of the newly created integrated information systems or services by providing the ability to configure the logic for the execution of functions that perform services in SOA. An additional task is to decrease the complexity of configuring the functionality of the service and to make it close to level of complexity of customization of b...

Currently the Life Cycle Assessment (LCA) methodology is more and more frequently used as a tool for evaluating the environmental performance of products or services. Conducting the LCA is particularly important and valuable for a new product, process or technology. That is also applied for research on the innovative solutions or process proposals. The ENVIREE project funded from the ERA-MIN programme within the 2nd Joint Call aims at complete recovery process proposal of REE (rare earths elements) from tailings a...

Improving diagnostic efficiency of pulmonary diseases is now a very urgent task. For the construction of automated systems of recognition and classification of radiographic images is necessary to perform the process of localization of pathological formations on chest fluorography. The correct choice of the method of segmentation for studying radiographic image segments provides quality and improves the accuracy of diagnostic decisions taken. The article shows a block diagram of a device that implements a method fo...

The results of research conducted in the field of development and application of mobile systems in problems of monitoring extreme weather situations (EWS). The proposed methods and development models take into account modern technologies like Map Reduce, Hadoop Java API, use of a precedent knowledge base about similar situations. The study places considerable emphasis on ensuring the reliability of the database and knowledge. Implementation of monitoring involves the use of a cloud of drones and other information ...

Cesium-137 is a long-lived technogenic radionuclide. The study of its distribution in the environment is important either from ecological point of view or as it may be used as a marker for sediment core dating. Lakes are excellent objects for the application of these approaches. A scientific expedition was carried out in order to extract and to study sediment cores from the beds of Lake Maly Liman, Lake Abrau, Lake Maly Utrish (Municipality of Novorossiysk, Region of Krasnodar), and Lake Bolshoi Tambukan (at the b...

In this paper we want to highlight the advantages of creating and using forms for collecting data regarding the main changes in an urban environment, including cadastral and utilities data. These forms can be accessed from mobile devices and the reported results are analyzed in a desktop application. The users are able to send their location linked with attribute data. This approach can be used successfully in a working team or can be disseminated for interested community members, as a crowdsource possibility. Cro...

The geophysical surveys methods have not been extensively used in gold exploration in Northern Portugal. This is based on the fact that most mineralized zones contain low and erratic sulphide contents. In this work were tested three different types of geophysical surveys combined with geochemical surveys, in order to define anomalies that are closely correlated with the locations of known mineralized zones. The aim of the work is to study some gold deposits in Northern Portugal (Lagoa Negra and Castromil) with the...

Interior conditions in closed spaces (housing, offices, vehicles) were for a long period of time focused on the thermal comfort. With the awareness that people spend a good amount of time inside these spaces and with the increase in life quality, it was considered an additional problem the ensuring of a proper indoor breathable air quality (by limiting the concentrations of harmful released substances). It was demonstrated that the interior pollution of those spaces primarily depends on two factors: interior harmf...

Wettability as a rock-fluid interaction property is well recognized to affect the multiphase flow in hydrocarbons reservoirs. It impacts on the petrophysical properties of reservoir rock including relative permeability, capillary pressure, electrical properties and enhanced oil recovery. The three most commonly states are differed of wettability for hydrocarbon fields, these include: water wet, oil wet and mixed. USBM and Amott- Harvey laboratory methods are proposed as petroleum industry standards to estimate roc...

This work is devoted to the synthesis and study of catalytic properties of mono- (Pd, Au) and bimetallic (Au-Pd) polymer-based catalysts of alkynol hydrogenation. Selective hydrogenation of alkynol C5 (2-methyl-3-butyn-2-ol) was studied over Pd, Au and Au-Pd catalysts supported on hypercrosslinked polystyrene of MN100 type bearing amino-groups. Synthesized Au/MN100 catalyst was shown to be promising for triple bond hydrogenation: more than 96% selectivity with respect to 2-methyl-3-buten-2-ol at 95% of the substra...

The researches presented in this paper aim to study the production technology of traditional ecologic meat products sausage type and their physic-chemical and sensorial characterization. The studied meat products sausage type were the traditional ?Virsli? produced in the Romanian village Pui by local producers. The first part of the researches involved the production technology, using organic raw materials and ingredients. Also the production technology followed a traditional recipe used only in this region / vill...

Dry eye disease became an important problem of public health, because of its increasing incidence, caused by pollution, global warming and expanding work on video terminals. Under the actual circumstances in which the ocular tissue lubricant, commonly referred as artificial tears, market includes every day new comers, the authors were interested to find out how the various active pharmacological agents impact on the eye surface. This different impact on the eye might be able to help practitioners to better individ...

The hybrid expert systems are the most effective for solution of geological problems, because their knowledge base includes not only knowledge of experts, but also the regularities received as a result of the analysis of available databases. The prediction problem was the first among the geological problems for which the expert system technology was used for solution. According to the principle of consecutive detailing the main prediction-metallogenic taksons of the researched objects are needed to consider: metal...

Due to large widespread of loess deposits in many parts of the world and reported geotechnical problems arising from collapse susceptibility due to soil sensitivity to wetting changes associated with subsidence and damages, advanced and detailed analyses for quantification of specific characteristics are necessary in order to select the optimal technical solutions in terms of structure safety and stability. This paper presents the analysis of various experimental testing results, with particular emphasis on the co...

Underground mining operations are inextricably linked to negative impact on the environment. This impact, in particular, may result in the formation of mining damages (various types of terrain deformation) and pollution of the environment. It can also results in long-lasting changes in the landscape and environment. Sustainable management of areas degraded by mining exploitation requires an accurate stocktaking. Authors of this article presented the example of usage of GIS technology to develop a model of supporti...

During the last decades, problems related to environmental pollution have become even more acute. Therefore there is a need for new sources of a clean energy. Steam reforming of alcohols, which are much morechemically active, proceeds at considerable lower temperatures. It is important also that alcohols produced from biomass (bio alcohols) can be considered as a renewable raw material. The aim of this work were the development of catalysts based on the complex oxides (ZrO2 - Al2O3 - CeO2) support and the study of...

This paper is focused on creation of the tail unit FEM strength analysis of the UAV based on helicopter by advanced CAx tools. To perform the analyses were used advanced information technology tools with high precision. For the strength analysis was used solver NASTRAN as a part of software NX. This analysis has shown us, in which locations of the surface design will be the greatest loads during the flights operations and in which points of attachment of the tail unit together with fuselage will be the greatest st...

Metallurgical wastes are deposited in landfills or are being recycled, mainly as material used for engineering work. They are also sources of pollution in the groundwater environment. For this reason, it is necessary to explore environmentally safe ways of using them. Environmental impact assessments of waste can be made on the basis of static or dynamic laboratory tests. The alternative is to carry out lysimetric research. However, this kind of research is rarely performed due to the degree of complexity, cost an...

Long-duration human space flights involved by interplanetary journeys or space station missions expose the crews to effects of weightlessness. Such effects, consisting in loss of bone density, skeletal muscle atrophy, cardiovascular deconditioning etc., can raise significant risks on the health of the astronauts and for their capacity to accomplish the missions. Therefore, a large number of studies were dedicated to solutions for creating artificial gravity. The paper studies dynamic effects produced in a tethered...

When operating waterworks, it is required to refine the data on actual stresses in different structural elements of the facilities. The authors put forward a nonconventional approach to expanding the waterworks observation network. The quantitative assessment of stresses in a structural element at the given moment of time is performed using borehole techniques of geomechanics. Later on, the change in the stresses and deformations is controlled based on the data on deformation of sidewalls and damage of galleries u...