Browse

Reducing energy costs and cost of production is a strategic goal of an industrial enterprise in the field of energy conservation and energy efficiency. The main driving force for the activities of the organization is staff. Therefore, the constant increase of knowledge and competence of employees on energy saving and use of secondary energy resources are the main points of the social and environmental policy of the industrial enterprise [1]. Only by motivating and involving staff, improving the control system, imp...

In comparison to other countries of the Southern Caucasus, Armenia is the country with the least number of people, the smallest territory, landlocked, dependent on external energy supply. Armenia is also engaged in the military conflict in the area of neighboring Azerbaijan to defend the interests of Armenian living there. Armenia hasn?t got its own fossil energy sources and it is also not a transit country, which transit oil and natural gas through its territory. Therefore, this country is heavily dependent on en...

The quality of life can be assessed according to a variety of indicators e.g. financial provision, access to goods and services, the quality of environmental particles etc. These indicators can be well-measurable; they are all objective ones. There are many others, such as liberty, happiness, sense of security etc. These indicators are far more difficult to measure and we call them subjective indicators. The security is one of the essential indicators of quality of life. There is no way to reduce security just to ...

This article is focused on possibilities of dedusting equipments to capture particulate matters from the chosen production process of the metallurgical plants in the Czech Republic. It deals with the issue of particulate matter generated during the production of pig iron. The article presents the manufacturing process at main sections of a metallurgical enterprise for the production of pig iron and possible formation of particulate emissions in individual sections. The emissions from sinter plants dominate the ove...

Cross-dipole acoustic logging traditionally uses to study the anisotropy of the formation acoustic properties. The method is based on comparing the velocities of fast and slow shear waves and calculating the anisotropy coefficient. In the anisotropic formation, the flexural wave is splitting into two modes. The amplitude of cross-components XY and YX will be non-zero and significant in the anisotropic zones of the formation. There are several approaches to assessing the presence of anisotropy in a formation. As a ...

The purpose of this paper is to present traditional building concepts from the local seismic culture, with a seismically resilient typology: from timber structures to framed wall structures, timber frame structure with infilling materials etc. The structural shortcomings of masonry structural systems with one or two storey, which were observed at the incidence of intermediate Vrancea earthquake from the past, will be emphasized: some architectural and constructive elements that impose a good/poor behavior and type...

Market transformation processes of the machine-building enterprises have acquired special significance in connection with the defining role of these enterprises in providing of innovative development of economy in Russia and the complexity of their adaptation to market conditions. Integration of machine-building enterprises in the market field requires new approaches to the formation of product portfolio of enterprises which are discussed in detail in this article. Competitiveness of the final product is determine...

The article presents research results carried out by the authors in the field of ensuring the energy security of Poland based on a hard coal. The article contains a brief description of the energy market in Poland, the forecast of the electricity production volume up to 2020 (ARIMA model (0,2,1)), as well as the possibilities of using Clean Coal Technologies (CCT). The necessity to undertake activities related to the development and implementation of the CCT is dictated mainly by the growing level of greenhouse-ga...

With the rapid development of Turkey?s petroleum industry, oil production, the way of burning crude oil to produce steam, need to change. Heavy oil reservoir with thin layer or edge water is unsuitable for thermal recovery. Electric heating leads to considerable electrical consumption. Low injection water temperature decreases reservoir temperature and increased crude oil viscosity. The prolonged temperature difference break up reservoir pore throat cement and framework minerals. To improve high-capacity channel c...

Hydrogen sulfide is a gas that is formed in various water bodies due to the flow of sulphate reduction and putrefaction of organic matter of bottom sediments. Hydrogen sulfide can also get in the water of reservoirs and watercourses with wastewater of various industries and farms. In the water objects of fishery and drinking water use concentration normalized, since due to the toxicity of hydrogen sulfide deteriorates the water quality, occur hypoxic effects and death of aquatic organisms, while for ponds with mud...

The paperwork is based on the data emerged from a conducted research related to a moisture influence on ignition sensitivity of air-methane gas mixture. For the purpose of this demarche the Bayesian statistics was used to fit a proposed mathematical model. In the first part of the paper it was presented the spark test apparatus used for the experimentation and the results of the experimental data obtained during the tests with moisturized air-methane mixtures. In the second part it was proposed and presented the t...

The development strategy in tourism industry requires a complexity of processes which claim the combination of the economical, social and environmental factors, concreted in medium and long term progress of the tourism society. Generally, sustainable development follows the performance on three levels - economic, by increasing the development degree and resources development, ecologically through recycling and avoiding environmental and social degradation by increasing the number of jobs, re-launching the traditio...

The existence of old unused buildings, called brownfields is one of the major urban problems today. In addition to the well-known environmental or social problems, the existence of brownfields is linked to economic problems, including, among other things, the decline in the prices of surrounding, especially residential, properties because of a reduction in social status and the prestige of the site. This article attempts to quantify this problem in a framework. On the example of several locations in the Moravian-S...

The article discusses the geological structure of the Middle Devonian dolomites deposit located in the south-eastern part of Poland, in the Holly Cross Mountains, in the central part of the kielecko-lagowskie synclinorium. The deposit is cut by large, four-level open pit mine. It contributes to follow tracking the variability of the formation of Devonian sediments to a large extent. Within the deposit, the lithological diversity of the dolomitic series and the intensity of tectonic phenomena are observed. In terms...

The quality of fuel atomization in diesel engine, commonly represented by the mean drop size, is critical for fuel-air mixture, and for the rate of fuel evaporation and combustion. Poor quality fuel-air mixtures are a source of harmful exhaust gas components, such as nitrogen oxides and particulates. In spite of advanced technologies, mentioned components still are not eliminated from combustion products. The article presents the results of the impact of fuel pump delivery rate and fuel viscosity on the course of ...

The aim of this paper is to evaluate the negative impact of the impoundment Po?a on landscape adjacent to it. The impoundment is used for the deposition of coal ashes and other sludgy waste material from industrial processing of former Chemko Str??ske factory as well as the deposition of sludge water from waste water treatment plant. Both published and unpublished materials were used to support our research. The field trip involved data collection and was designed to find out the real condition of the impoundment ...

Air pollution is one of the most urgent problems of urbanized territories. The quality of atmospheric air depends to a large extent on the volume and characteristics of the contaminants entering into it from stationary and mobile pollution sources. According to the State Reports ?On State and Protection of Environment in the Krasnoyarskiy Krai? the air pollution rate in Krasnoyarsk has been remaining very high for the last decade. When assessing the environmental quality, biological methods should be used integral...

The paper presents the innovative proposal of managing the natural resources of a tourist destination using information and communication technologies. The members of the young generation of consumers, called the Millennials, have a very specific profile which includes technology in the core values. Starting with the Millennials, all strategies will have to address to a new consumer type, generically called ?the digital native?. In this context, the paper presents the case study of a tourist destination which has ...

The flooding of the remaining gaps of the former quarries is a process that can be achieved naturally, by influx of water from various permanent and/or temporary sources such as rainwater, superficial water courses, underground water or artificially, through water adductions from other nearby water sources like rivers, lakes etc. Knowledge of hydrographical, hydrological and hydrogeological conditions specific to a region where open-pit mining operations are carried out allows the assessment of the available water...

Nowadays, in order to satisfy consumer's profits and the requirements of the environment, manufacturers strive for more ecological, modern and innovative solutions in the area of heat distribution. The paper presents the results of the examinations of the importance of information systems in the process of distribution of heat for final recipients. The main research problem of the paper was to determine the answer to the question of whether IT systems used in the process of heat energy distribution are important f...

Nowadays, in order to satisfy consumer's profits and the requirements of the environment, manufacturers strive for more ecological, modern and innovative solutions in the area of heat distribution. The paper presents the results of the examinations of the importance of information systems in the process of distribution of heat for final recipients. The main research problem of the paper was to determine the answer to the question of whether IT systems used in the process of heat energy distribution are important f...

Measurements of porosity of rock materials are one of the most important in field investigations and laboratory analyses of rocks and soils mechanics. Results of those laboratory measurement are used in vast majority of reservoir engineering calculations and simulations and that is the reason why, accurate measurement of porosity is of vital importance during laboratory tests. The main goal of this study was to investigate the influence of improper preparation of sample for the porosity laboratory measurements on ...

The so-called Karolina area is situated very close to the center of Ostrava - the third largest city in the Czech Republic. It is an area of several hectares on the main entrance to the city center. Urbanistically, it is one of the most attractive areas of the city. Due to the industrial past of Ostrava, this area has long been used as a coking plant in the past. Upon completion, the objects became a full-fledged brownfield with all the negatives associated with this phenomenon, including the environmental burden....

The main objective of the article was to assess the impact of the selected interpolation algorithm on the accuracy of parameter value estimation. The following interpolation methods were used: inverse distance to a power (ID), linear kriging (LK), ordinary kriging (OK), and more advanced geostatistical methods including Lognormal Kriging (LG) and Turning Bands Simulation (TBS). The contents of copper and lead were determined for the economic series of a part of the LGCD (the Lubin-G?og?w Copper District, Poland). ...

The coal samples were fractured by using high-energy solid fuel (propellants) in the lab rocket motor (LRM) adapted to investigate the impact of propellant gases pressure on rocks. The combustion of the propellant generates large quantities of gases at high pressure, which are able to produce a secondary system of fractures in the coal - potential pathways for methane migration. Values of pressure and time generated during combustion of propellants in the standard system of a laboratory rocket motor are controlled...

The placing engineering-technical objects lead to the necessity of the development and of the applying of the protective and of the preventive of measures in areas with increased geodynamics (karst, landslides, mudflows, etc.). One of the measures is the application of systems of the geodynamic control to prevent of the negative development of geodynamics. However, the development and the introduction of systems of this class are associated with the low methodological study of problems of the control of probabilis...

The world economy continues to grow . About 9 billion people will live on the planet by 2030. To meet the growing demands for resources, products and services is becoming increasingly difficult. According the World Bank, the volume of solid waste will increase from 1.3 billion tons to 2.2 billion tons per year by 2025, mainly due to the developed countries. The Elen MacArthur fund estimates that the economy loses 3.2 trillion dollars annually in the sector of consumer services [1]. The linear industrial model of w...

This paper presents a solution for the replacement of conventional fuels with biofuels in order to protect the environment. The proposed biofuel is formed of diesel and a certain amount of animal fats. Biodiesel is similar to diesel fuel but with small differences. The animal fat is the result of the skin processes in the leather industry. In this industry it represents a waste and it is not used. We can consider that the animal fats are a renewable biofuel source. The proposed fuel has the properties of a renewab...

Because of the hydrocarbon reserves reducing from traditional reservoirs in Russia, much attention is paid now to unconventional resources, such as the Domanik oil shales of the Volga?Ural Basin. The Domanik deposits consist of siliceous-clay-carbonate rocks enriched with organic matter and other components of oil in the dispersed state. They are Middle Frasnian source rocks and have low porosity and permeability. Domanik shales contains many oil occurrences and rare fields, which is primarily explained by the abs...

It is important to control the social issues not only regarding the outside factors but also the inside ones ensuring a responsible attitude towards the employees and the environment. The purpose of this study is to analyze different points of view, namely, respondents as potential employees evaluate the working conditions in social enterprises that work in the social services industry, such as providing social services, education, supporting science, protecting and preserving the environment, protecting animals o...

Abstract. The possibility of obtaining biofuel and producing electricity in microbial fuel cells is shown when using the industrial cellulose-destroying Clostridium acetobutylicum strain VKPM-4786 as a bioagent. Substrates for microorganisms in MFC were cellulose, glucose, birch sawdust, starch, sludge-lignin, substandard potatoes, peptone. Calculation of the power of the MFCs under investigation (for 2 days of work) showed that the most effective among them was MFC based on a liquid nutrient medium with the addit...

The paper addresses the main strategic benchmarks of the urban water supply and sanitation systems. The authors have studied the results of the biggest Russian urban water supply companies operation for the last three year period. The indicators that were considered: financial profits, investments, losses of water, the structure of costs etcetera. The results were compared with world level parameters. Many companies have really effective investment programs. This activity is related with, on one hand, the forthcom...

In-situ combustion is an effective enhanced oil recovery (EOR) method for heavy oils. Whether an in-situ combustion process can be applied successfully or not depends on how the combustion process of crude oil behaves in reservoir after air injection. The oxidation process of crude oil in the reservoir is always accompanied with the pyrolysis process. Therefore, it is very essential to investigate the pyrolysis behavior of crude oil. However, the composition of crude oils is very complicated, which makes it diffic...

In the second half of the twentieth century and in the beginning of the twenty first century finding the ways of regulating of economic development and preserving the natural environment remains the most urgent task of the world scientific community. The issues of coordination of further socio-economic development and environmental protection remain an important problem in many regions, especially in territories with environmental restrictions because of the exceptional value of the natural complexes of Lake Baika...

This study aims to highlight relations emerging between vegetal organisms and water factor. The water input in an ecosystem is realized mainly by: precipitations, water vapors from the atmosphere, fog, dew, underground water, snow melting, springs, river flooding, high flow. The water losses from the ecosystem come from evaporation, transpiration and infiltration down to depths inaccessible to plants. In delineating the relations emerging between plants and the water environment, the roots system has an important ...

There are areas of extrazonal relic steppes on the territory of Yakutia in the tundra and taiga zones. They are the most extensive in central Yakutia, and sporadic squares of steppes are located in the north, in the Yana, Indigirka and Kolyma rivers basins. There are growing the xerophytic steppe plants which are separated from the main range, characteristic of the Transbaikalia and Mongolia steppes, as well as a number of invertebrate and vertebrate species of animals associated with their origin with the steppe ...

The article presents the results of the research of existing of free energy in the nature and describes the methodology and laboratory researches. The authors presented and described 3 options of laboratory samples to research the free energy in the form of a potential on different materials. In the 1st option is presented and described the results of research of the coil placed in the water. Based on investigation it is noticed that the coil placed in water does not allows to obtain the noticeable voltage. In the...

Many of the most challenging bioethical questions of our time address interactions between human health and the environment. In the past few decades awareness of the damaging effects of environmental pollution on human beings and their quality of life has increased dramatically. We have a fundamental right to breathe clean air, drink clean water and eat safe food. The idea of environmental human rights is receiving growing attention worldwide, driven by our global ecological crisis. The purpose of this thesis is t...

The term and interpretation of "risk" is analyzed in various regulatory documents, particularly in the standard of German automobile manufacturers VDA 6.3 and ISO. In their interpretation was found partial inconsistency. It is shown that the normative document of audit processes should be developed based on the requirements of ISO/IEC, taking into account the industry specifics. For this, it is proposed to separate the concept of " non-conformity of requirements" and "risk" and to identify risks during the audit p...

The first part of the paper analyses the role of renewable resources in the production of electric and thermal energy in Romania. It was taken in consideration also the wood mass destined to heating the population, as a large number of households still use this fuel exclusively. Starting from the plough land and its associated production, there is the availability of agricultural biomass possible to use for energy production. The paper is concluded with the final considerations on the benefits of using biomass for...

Pd-catalyzed reactions are one of the most widespread in fine organic synthesis. For example, selective hydrogenation of alkynols is used for production of a large variety of terpenoids and also fat-soluble vitamins. The challenge in hydrogenation of triple carbon-carbon bond using Pd nanoparticles (NPs) is to provide high activity, selectivity and stability of catalytic system. This work is devoted to the investigation of the influence of the type of anion (OH-, CO32-, PO43-), which was introduced in the catalyst...

In 1972 at United Nations Conference on the Human Environment in Stockholm was proposed the program of ecological monitoring, which examined the biosphere reserves as the essential part of conservation policy. After that conference, the Soviet Union took the official responsibilities of establishing biosphere reserves on its territory. In 1976 the Soviet academy of sciences established the project of fire biosphere reserves in different parts of Soviet Union to expand ecological monitoring from local to national l...

For Romanian agriculture is essential to promote products based on natural extracts. Seaweeds extracts, humic acids, and other natural compounded often enhancing growth, development, abiotic stress tolerance or ability to tolerate plant disease. Many articles show results of using seaweed extracts as biostimulants to improve tolerance to drought or salinity. Most products are extracted from marine algae belonging to the Ascophyllum nodosum species. In our research, we tested the role of SuperFiftyВ® 0-0-8 in reduc...

The present study aims to highlight the importance of the vegetal organisms, in restoring the natural balance, based on field research. The vegetal layer under its multiple aspects and the complex processes taking place in its framework, as well as its relations with the environmental factors, constitute an essential element in the natural circuit of the environment and a basic component of the geographic layer, indispensable for a complete characterization and understanding of the structure and dynamics of terres...

The paper presents a structural model of the smart farm to improve environmental protection. This model is based on a digital platform that integrates all the elements that participate directly or indirectly in decision-making into agricultural farm.Retour ligne automatique An intelligent farm must manage optimally and efficiently in the spirit of sustainable agriculture and environmental protection the following components: agricultural lands, farm energy balance, inputs and outputs in accordance with the applica...

This paper presents the effect of fertilizers with nitrogen and phosphorus, applied both unilaterally and in different combinations, on the quality of wheat grains during the period 2014-2017. In this regard, the research was carried out on Ciprian wheat variety, created at SCDA Lovrin, in a long-term experience with fertilizers, founded in 1967. In addition to genetics, the climatic factor and the technological factor play a fundamental role for obtaining superior quality productions for winter wheat, to the deep...

An important source of hydrocarbons is coal which is often associated with oil deposits. In the Volga-Ural oil and gas province (Russian Federation) coal resources in the Visean deposits of the Carboniferous Period exceed 3.5 billion tons. They are located at depths of about 1 km and are inaccessible to mine operations. At the same time, coals can be exploited by well methods as a source of gaseous raw materials. The power gas from coal seams can be used in the development of deposits of high-viscosity oils in adj...

After more than 40 years of production results indicated necessity to refine the geological model of Sarmatian fluvial reservoirs in an onshore oil field of Moesian Platform , Romania. A stratigraphic analysis was developed to build a new stratigraphic?structural framework. The new 3D seismic was used to incorporate structural data by mapping the system of all normal faults and the unconformity. A new image have been developed for the incised valley. Using concepts of sequence stratigraphy, 3D seismic, biostratigr...

This article presents the effectiveness of three-component geoacoustic research. It is shown by dividing vertical and lateral fluid motions, which makes it possible to reveal and research the casing, interlayer, and interlayer flows of different contents and origin in the hydrocarbon deposits. Geoacoustic signals occur naturally in boreholes because of the dynamic processes located in the volume of near borehole space. The processes are linked with fluid motions (water, oil, gas) or cracks forming inside the rocks...

Building stone quarrying companies in the Republic of Karelia commonly have limited information on the geological structure of a deposit. They do not have their own geological survey, and this type of service is not yet properly offered in Karelia. When product quality problems arise, it is difficult to rapidly find the correct solution. The quality of raw materials at any quarrying stage can be analyzed using GIS applications at the initial stage of quarrying in order to collect and systematize information on the...