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The quality of the products is a sum of functions, features and useful properties that make the product to satisfy a social need and thus to be appreciated be the user. Quality involves requirements of technical, economic, aesthetic, ergonomic nature, whose content evolves in step with social needs and is measured by the degree of utility and economic efficiency provided by the product within the scope of its users. One of the methods used to improve quality is Quality Function Deployment (QFD), which is a process...

The quality and issues related to quality assurance of goods has concerned scientists and especially practitioners for a long time.One of the methods used to improve quality is value analysis, which allows to reduce unnecessary or disproportionate costs of some parts of the products compared to the contributions on quality that those parties bring. By using this method is determined to increase the quality of the products, optimising the size of the essential properties and functions. In the present work it is int...

National Institute for Earth Physics (NIEP) has started the development of its own realtime seismic network since 2002. The network is designed to monitor the seismic activity on Romania territory, which is dominated by intermediate earthquake from the Vrancea area. In present the network consist of 115 seismic stations and two seismic array. The seismic stations are equipped with Quanterra Q330 or Basalt digitizers, broad-band seismometers (STS2, CMG40T, CMG 3ESP, CMG3T, PBB-200s) or shortperiod sensors (MARK L4C...

In-situ combustion is an effective thermal recovery process for heavy oils and natural bitumen. It is widely accepted what the success of an in-situ combustion depends on a stable combustion front. However, field and laboratory data show that combustion front is often unstable, which severely limits the wide application of in-situ combustion technique. The goal of this work is to develop oil-soluble metal-based catalyst to improve the combustion behavior of heavy oils, and thus achieve a stable combustion front. I...

In Western Romanian Carpathians most of the permanent grasslands are comprised in High Nature Value areas, they being used in extensive manner. The main constraints reflected on the grasslands from the analysed area are represented by depopulation and decrease of the number of grazing animals. One of the main consequences of the decrease of the anthropic pressure on the vegetation sward is the increase of the incidence of the invasive native and non-native plants species. In some situations they are producing grea...

Historical buildings are a major part of European and national cultural heritage which people all around the world decided should be preserved for the future. In order to conserve both the construction elements and the thermal comfort, it is crucial to find the optimal configuration of the energy related equipment. These units, besides fulfilling the parameters of thermal comfort, are also subject to the EU Ecodesign and energy labeling requirements and must meet a series of architectural restrictions. This articl...

In Romania, there are great possibilities for conversion and use of renewable energies, especially wind and solar energy. In order to maximize solar energy conversion, both as thermal energy and electrical energy, there are used sun tracking systems for solar thermal or photovoltaic panels, implying various types of drive: electric, pneumatic or hydrostatic. Based on the experience of more than 50 years in the field of hydraulic and pneumatic drives owned by the Institute INOE 2000-IHP, there have been designed tr...

The paper is a technical analysis for choosing the heat supply source of a technological heat consumer requiring steam at 2 parameters pairs: 32 bar & 400?C, respectively 6.4 bar & at least 200?C. The analysis of the whole combined heat and power plant (CHPP) processes and performances are performed for 4 CHPP designs, all of them with Gas Turbines (GT) and Heat Recovery Steam Generators (HRSG), through the numerical modeling of the processes in the CHPP components and by assembling them. The computing steps are: ...

In the article the authors propose a gradual abandonment of the outdated practice of early/urgent importation of energy resources to remote settlements and industrial facilities. Marked the main directions of studies in the perspective of transition from a research and development level to a level of industrial application. Examined the nature of gas hydrates decomposition with the purpose of developing a modern technology of transportation and storage of natural gas and its components in the hydrated state. Advan...

Taking into consideration that Romania is confronted with many difficulties in the treatment of wastewater, especially in its rural and less populated areas, this paper proposes to present some possibilities to increase the treatment capacity of wastewater in a small Sequencing Batch Reactor (SBR) plant. The functioning of the SBR operation compartment was automated by using predefined time, i. e., a programmable controller. In order to identify the possible ways in which the wastewater treatment capacity could be...

The conversion of the solar energy depends mostly on the irradiance of the Sun at the level of the photovoltaic panel. Another significant factor that modifies the solar energy conversion is the temperature at the surface of the PV panel. The energy output of the Sun is fairly constant, but the solar irradiance varies significantly from one hour to another and changes throughout the day. In this paper we are presenting the design of a simple but effective MPPT (Maximum Power Point Tracker) charge controller based ...

In this paper was described a method of conducting the extraction of mineral waste from a closed mineral waste disposal facility which, for decades, has been the area of natural succession compliant with the principles of sustainable development. The facility was opearted in the period from 1968 up to 1980. During that period circa 10 mlilion tons of tailings from flotation of sandstone and carbonate copper ore were deposited. The tailings consist of of silicon dioxide, carbonate, silicates, and also aluminosilica...

Mining and processing activities are accompanied by air pollution. The paper assesses air and soil quality on the territory of copper-sulphide ores mining and processing plant in 2010пїЅ2013. The mining enterprise consists of a quarry, reclamation plant with a tailing pond, experimental-production facility for heap leaching and an underground mine under construction. The deposit has six ore shoots. Three of them are now excavated by surface mining, the underground mining techniques will be used for the others. Pro...

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

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

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

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

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

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

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

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

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

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

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

The hydrocarbon migration in a porous rock after waterflooding is a complex process. Mathematical models were developed through years to simulate the fluid flow, but input data from experimental works are needed to calibrate equations and/or trends. Routine and special laboratory analysis and measurements allow to determine the crucial input parameters. Knowledge of mineralogy, porosity, permeability, capillary pressure and relative permeability helps the reservoir engineers to predict and manage the future oil re...

The study deals with the features of using surfactants during waterflooding of an oilsaturated porous medium in the pore-scale. As an example of the study, we use natural sandstone from Ash'alchinskoye oil-field. For calculations the digital image of this sample is received with high resolution X-ray computer tomography use. The mathematical modeling of multiphase flow in porous medium is made on the base of Lattice Boltzmann equations and Color-field model. Numerical experiments are held for different values of s...

Potatoes take up metals by absorbing them from contaminated soils, as well as from deposits on different parts of the vegetables exposed to the air from polluted environments. The content of Zn, Cu, Pb and Cd in potato tubers grown in different production sites of Vushtri, Kosovo was determined using atomic absorption spectrometry (AAS). Experimental work was performed at the chemical laboratory of the Phytosanitary Corporation Sara & Meti, Kosovo, which is accredited according to ISO 17025. The results of this st...

During the biomass densification can be recognized various technological variables and also material parameters which significantly influences the final solid biofuels quality. The paper deals with the experimental research of the relationship between technological variables and material parameters during densification of acacia wood sawdust. The main goal of presented experimental research is to determine the relationship between compression pressure, pressing temperature and raw material moisture content and par...

The paper describes the impact of factors which influence the buildingпїЅs energy consumption. Building constructions are important factor that influences total energy necessity for heating, where energetic efficiency presents way to better competition, since it decrease service costs. Building is greatest consumer of energy and here lies also potential of rationalization of energy costs. During quantification of energy savings there were used two methods: upside down пїЅ evaluation of savings through obligatory i...

Tonsteins are rocks which, due to their origin, mineral make-up and structure, are valuable petrographic benchmarks in the monotonously formed Carbon coal-bearing formation of the Upper Silesian Coal Basin in Poland. Mineralogical study of tonsteins is important with relation to learning more about their tuffogenic protolith. It can also serve as one of the criteria when differentiating tonstein horizons with a similar texture: structure, granulation, directions and intensity of transformations of the tuffogenic m...

The article presents data on the spatial distribution, concentrations and forms of the location and migration of iron in surface waters within the Russian territory of the Eastern Donbass. A map of the distribution of dissolved iron in the investigated territory is constructed. The areas with the highest levels of contamination with this metal have been identified. The tendency to decrease the level of total iron in the water in the direction of: small rivers of coal mining and processing areas, as well as storage...

Compositional reservoir simulation runs involve, among others, the solution of the phase behavior of the hydrocarbon fluid phases at each block and at each time step. This iterative, high CPU time demanding calculation renders history matching and production optimization as extremely time consuming tasks. This paper presents a review of the available methods for speeding up the conventional phase behavior computations during compositional simulation Emphasis is given to the fluid-specific soft computing models whi...

Genesis of the Uralian oxide-silicate supergene nickel deposits remains disputable. There are supergene and polygenic hypogenous model of their origin. The second model usually involves supergene and hydrothermal-hypogenous stages of formation. To solve this problem isotope ratio 87Sr / 86Sr was determined for the first time for the Ufalei and Sakhara supergene nickel deposits. The obtained data on the 87Sr / 86Sr isotopic ratio in samples from ore zones are divided into two groups, which indicate two sources of s...

The work is aimed at evaluating the effects of deep coal mining on the landscape in the Jest?ebпїЅ Mountains (Czech Republic), where coal had been mined for more than 400 years. Changes in the landscape are described, especially new dominant features that arose from coal mining. These are mainly spoil heaps that were either reclaimed or left for natural regeneration, but also other objects used for different purposes пїЅ brownfields. The impact of coal mining on the character of the landscape in the region is asse...

The presence of metals in aquatic environment is known to cause several health problems to animals and human beings. The levels of heavy metals in wastewater and drinking water must be reduced to the maximum permissible concentration. Clays are abundant and inexpensive layered alumino-silicate minerals that have adsorbent properties. In general, chemical species can interact with clays either by ion exchange or physisorption, both being reversible processes. Among the mineral clays, smectites, especially montmoril...

Purpose пїЅ Organization of future is organization which combines old employees know how with young employees enthusiasm and management tools customized for knowhow transfer. Global economic situation, crises and migration phenomena, IT new challenges( global networks) and the new way of human being interaction contribute for a new society, for new business approach and knowledge transfer will make a difference, will create a new framework for a new business models. The question is for organization of future if it...

The transformation of hydrothermal processes in sediments is accompanied by the transformation of organic matter. Work presents an analysis of the change in the composition of the bitumoid of domanic sediments of the Volga-Ural oil and gas province with thermal effects on the specimen of the kerogen containing formation. The laboratory modelling of the katagenesis process on domanic rock sample was conducted in autoclave at a pressure of 50 atm, at a temperature range of 200-350 пїЅC with the addition of water, an...

In this contribution we focus on the development of land use changes in two vineyard villages - RybnпїЅk and ?ajkov. Selected villages have very old vineyard tradition. Until now the traditional agricultural landscape (TAL) is fragmentary preserved here. They are localized in the Middle-Hron river region (Slovakia). The aim of this article is to evaluate and compare changes of secondary landscape structure (SLS) in two time periods (1949-1986 and 1986-2016). Processes of maps visualization were done in ArcGIS 10.2...

Pre-failed landslides occurring in quasi-homogeneous soils are difficult to be characterized from the standpoint of their partially formed failure surface geometry. The paper presents the combined geotechnical investigation methods (fully sampled boreholes with laboratory tests, in-situ dynamic probing and so on) giving a very accurate point-wise description of the soil, with geophysical methods (electric resistivity tomography пїЅ ERT, seismic refraction and multichannel analysis of surface waves пїЅ MASW) provid...

Denitrifying bioreactors can be used to reduce high nitrate concentrations in agricultural runoff in situ. They operate on the basis of the flow of nitrate-rich water through a filtration medium containing biodegradable organic matter that serves as an organic carbon source for denitrification bacteria. However, undesirable excessive leaching of organic compounds from the bioreactor fillings can occur, especially in the start-up phase. The paper presents the results of static leaching tests conducted on six differ...

Crisis management is closely related to the emergency event prevention, crisis reaction and after crisis prevention. Each country within its legislative frame has involved certainly higher competencies of Rescue system forces, Integrated system forces or firefighters who are mostly acting part of Integrated rescue system in Slovakia. Recently there is a negative trend in European cities connected to aggressive behaviour against firefighters disabling them to do their job. It was also observed and very well describ...

The energy recuperation systems are being increasingly used in modern non-hybrid cars. It allows to recover part of the energy without mounting an additional electric engines and a set of batteries with high capacity in the vehicle. Recuperation of energy, however, involves a number of limitations resulting from: traffic conditions, vehicle construction parameters, electrical energy demand in the car and from the construction of the energy recovery system. In this article presented the results of road tests in a r...

The technique named "base isolation", resorts to place at the bottom of buildings special components, leading to long fundamental periods that would avoid resonance tendency of buildings with its site in the case of strong earthquakes. The nonlinear characteristics of the isolator layer change the linear period-shift estimation and can lead either to dangerous shortening shift in case of hardening nonlinearity or to unnecessary shift enlargement in case of softening nonlinearity. By neglecting this period-shift di...

Within the eastern Siberian platform are known objects worth mentioning from the standpoint of organizing the extraction of heavy oil and bitumen. The Siberian platform is characterized by a wide spreading of the surface-bearing and shallow-lying rocks saturated with products of hypergenic oil conversion. The article describes the results of lithologic and petrographic studies of bitumen-saturated carbonate rocks of Anabar anteclise southern slope (Daldyno-Alakit region). The upper part of the section of the sedim...

The paper presents the results of the study on the local variability of accumulation index of cobalt in the shale series of part of the "Rudna" Cu-Ag deposit (the Lubin-G?ogпїЅw Copper District, LGOM). The Lubin-G?ogпїЅw mining district is a world-class copper-silver, stratabound ore deposit located in the SW Poland, in the area of the Fore-Sudetic Monocline. The average cobalt content for the sandstone and carbonate series was about 30 ppm. Meanwhile, the highest value of this parameter (280 ppm) was found for th...

For the analysis of heavy oil samples of the Ashalchinskoye deposit the combined nuclear magnetic resonance (NMR) method to measure the free-induction decay (FID) together with the Carr-Purcell-Meiboom-Gill (CPMG) echo signalпїЅs decay was used. The measurements were carried out on a NMR analyzer Chromatek-Proton 20M, operating at a frequency of 20 MHz. Special control program was created on the NMR analyzer, which automatically tunes and measures full FID curve, then switches to measuring the echo amplitudes deca...

Thermal methods, in particular steam treatment, are the most needed among the tertiary methods of increasing the extraction of Heavy crude oil. The use of catalysts in couple with the steam injection is promising method. This article is about experimenting with the modelling of steam effects on the oil-saturated sandstone, using a dimensional-based catalyst based on iron. The composition and physico-chemical characteristics of the products of the thermocatalytic effects have been studied. It has been shown that th...

Currently heavily developed light oil resources are being depleted, and the energy consumption is increasing. In this context, the task of developing the tight oil reserves is relevant and will soon become an essential resource for stabilizing and increasing the oil production. The share of tight oil (including heavy crude oil) is steadily increasing in the overall balance. Oil production will therefore be at the expense of these oil revenues in the coming years. These hydrocarbon resources are referred to as non-...

The Vrancea zone is an area of concentrated seismicity at intermediate depths (60-200 km) beneath the bending area of the South-Eastern Carpathians in Romania. The purpose of the paper is first to find historic data related to the four selected Vrancea earthquakes occurred on 26 November 1829 (Mw 7.3), 1 May 1893 (Mw 6.2), 17 August 1893 (Mw 7.1) and 31 August 1894 (Mw 7.1). Next, to gather all available historic information about those events, analyze it, assess/or convert the intensity using the Medvedev-Sponheu...

In-situ conversion of kerogen from the production of synthetic oil is one of the possible ways to increase the profitability of the development of shale formation. To develop Bazhenov shale, such technologies as in-situ combustion and retorting, presupposing productive layers warming-up can be employed. Laboratory modeling of the thermo-catalytic effect on the kerogen samples of Bazhenov shale was carried out. Before separation kerogen from the rock sample, bitumoids were extracted by means of chloroform. Kerogen ...