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The quality of the indoors is an important determinant of the health and well-being of the occupants. The indoor air quality is defined as an interaction between the climate, location, construction system, building materials, furnishing, building occupants, and all other processes within the building. The contribution deals with the assessment of perceived air quality related to human performance and productivity. The perceived air quality has significantly effect on performance and productivity. The indoor concen...

The present study aims to analyze the impact of the aridization process on the demographic evolution of the territorial systems, most affected by. The aridization process is a climate phenomenon, characterized by extreme climate parameters (high temperatures and low precipitation quantities). Three main counties in the southern part of Romania have been chosen as a case study (Mehedinti, Dolj and Olt counties). This is a geographical area where the aridization process is largely spread. In this area, a demographic...

Biological waste - so-called wet garbage - is one of the problems of efficient and clean waste collection. Due to their nature - they quickly decompose and cause unpleasant odor. Waste management of this biological garbage is possible in several different ways. They can be transported to landfill with other MSW. They can be segregated and collected separately and then processed in a collective way also in several ways. They can also be utilize in the place of origin. The paper presents energy analysis and environm...

The territory of Slovakia is in Central Europe at the interface of the parts of the continent that are influenced by continental and by oceanic climates. This is reflected in the variability of weather and climate characteristics. Apart from traffic load, change of climatic conditions are one of the constant external factors with adverse effects on physical and mechanical properties of different structural multi-layers in pavements. These impacts together with frost index and their corresponding changes significan...

The paper deals with the impact of mining near Uchaly city, Russia, on water quality in Uzelga River. Three deposits of copper-zinc sulphide ores are developed by underground mining. There is a quarry, a slime storage pond, a mining waste dump. The quarry was partly reclaimed in 1990s. At present the quarry receives water from two new deposits. Wastewater treatment plant operates in the mine. But the wastewater treatment plant does not provide standard water quality indices. The anthropogenic development of the te...

Consumers of organic products during the process of buying pay attention to information presented on the packaging, except for the product price and utility. Thus, food producers consider the packaging as one of the marketing elements and information included thereon, except for the informative function, also plays a marketing function. The objective of the article is to find an answer to the question: How information provided on the packaging influences the decision on the purchase of the organic product. To find...

The article presents the results of experimental research carried out on a real object and analysis of the effect of preparing oil-related waste with various physical and chemical properties for combustion in a marine auxiliary boiler, on selected components of exhaust gases, such as carbon oxide (CO), carbon dioxide (CO2) and nitrogen oxides (NOx) arising as a result of their burning. Oil-related waste comes from operating marine power plants; they are characterised by diverse compositions, heterogeneous structur...

Anthropogenic pollution originating e.g. from waste landfills can migrate into the ground and significantly change its properties. Moreover, the interaction between soil and pollutants may change soil behavior as well as cause geotechnical problems. The aim of the study was the assessment of the impact caused by inorganic contaminants on consistency limits (plastic limit and liquid limit) of fine-grained soils. Laboratory tests were carried out on bentonite, kaolin and clay using KCl, MgCl2 and NaCl solutions. The...

The Romanian eggplant growers get important productions in protected spaces, besides optimum natural periods. The average yields obtained from crops of grafted eggplants are with approx. 25% higher compared with productions of ungrafted culture. The experience was conducted at the Horting Institute Bucharest, Romania. The grafted and ungrafted eggplant plants were obtained and maintained during vegetation period according to the classic technologies, in some specialized greenhouses: a greenhouse specialized in pro...

The carbohydrate (2.9-7%), vitamins (A, B, B2, B6, C), salts of important mineral elements (K, P, Fe, Ca, I, Mg) and organic acids (0.5-1.5%) content from tomato fruits is very important. The tomato is widely cultivated all over the world and a very popular and important crop in Romania. The grafting is considered an important technique for the sustainable greenhouse vegetable production. This research was conducted on import tomato hybrids appreciated in south side. Two Lycopersicon esculentum rootstocks - пїЅEmp...

The threat of seismic activity is an inherent part of the operation in each of the three mines owned by KGHM Polish Copper JSC. It results from the high compressive strength of the rock, the high depth of retreat, and the significant tectonic of the deposit as well as human mining activity. There is no complete elimination of this threat, but adequate prevention is used to limit it. Impacts on this threat also include operational indicators such as advancement or progress and pace of mining work. The progress is d...

The aim of this article is to assess the impact of changes in particle size on the production yield during thermal degradation пїЅ pyrolysis process. For the purpose of this research the energy grass пїЅ black bent grass (Agrostis gigantea) was selected. The input material has been tested in four different granulometric fractions пїЅ original unadjusted material, crushed material, and also in the form of two kinds of pellets of different size. For pellets, the basic mechanical properties were determined пїЅ mechan...

Obtaining data on buildings by means of TLS (Terrestrial Laser Scanning) has recently become very popular as the time needed to take the measurements is significantly shorter than in the case of the traditional methods. The technical parameters of 3D scanners (digitizers) are becoming increasingly advanced, while the accuracy of the data collected using them allows not only to translate the geometry of a real-life object into a digital image, but also to evaluate its physical condition. This is possible due to the...

In relation with a study of arsenic pollution of groundwater in the Ogosta Valley, NW Bulgaria, a monitoring station was built in the floodplain in the upper reaches of the Ogosta River, not far from the town of Chiprovtsi. The observations took place at three adjacent sites including a hydrometric river gauge and two tube wells located closer and further from the river. River stages, groundwater level, water temperature and electrical conductivity were measured automatically at the three sites. Water pH, dissolve...

Water erosion is not only agricultural but also environmental problem. Water erosion washes off the finest particles that bind nutrients and other substances. These nutrients are piled up in the accumulation part of the slope. In the worst case, they are completely washed off the farmland, i.e. into water reservoirs and water courses. Additionally, damage to soil and its depletion of nutrients is reflected in lower yields. The aim of our study is to determine the effect of water erosion on total nitrogen content a...

River, dam, and lake banks are often attractive as a holiday destination for both domestic and overseas visitors. Therefore, different water based activities including water sports centres, as well as walking and cycling routes adjacent to water bodies require clean and environmentally green water. The places of greatest tourism significance need to be determined and their vulnerability to water quality is indisputable. It is in close connection to the pollution of water. Nowadays, the number of polluters of the H...

The contribution is focused on problematics of the impact of weather conditions to the phenological phases of broadleaved trees (Quercus robur L., Fagus sylvatica L., Tilia cordata Mill., Prunus spinosa L.) at the selected research areas in central Slovakia. There were recorded a 10% incidence of falling and yellowing leaves on a group of ten trees selected species. Factors taken in account were rainfall data, the number of tropical days and the length of growing season (June пїЅ August). The significant differenc...

The article deals with impacts of changes in forest composition and climate change on the runoff processes in the river basin in Slovakia. This work contains land use change scenarios of forest associations and also two scenarios of global climate change. Both of scenarios types of changes were prepared, and the runoff under the new conditions was simulated. Distributed rainfall-runoff models simulations are often used to evaluate the impact of such changes on the generation of runoff. These models have the advant...

The aim of this study is to analyse impacts of the acid atmospheric deposition and global climate change on water resource recharge and water quality in headwater catchments of the Jizera Mountains (Czech Republic). Since 1982, a long-term hydrological investigation has been conducted in the experimental basin Jizerka (100 ha, elevation: 860-980 m, clear-cut of mature spruce stands and reforestation) and forest catchments of three water reservoirs Bed?ichov, Josef?v D?l and SouпїЅ. The пїЅopen fieldпїЅ load of sul...

CRM is more than software or group of methods; itпїЅs a business education, which is consistently aimed at getting and keeping right customers. Commercial success each of company depends on relations with customers. Relation with customer will be effective or ineffective according as company has quality information about customer. In a last year we are able to see the need for higher and better degree of integration, co-operation and customer data-sharing between Sales and Marketing, which will improve the ability...

98% of total explosives used for civil uses are consumed by Polish mining plants, with 2.5 thousands of tonnes of explosives used in bituminous coal mines yearly. Bituminous mines are now facing the necessity of implementing a new project for preparing a system for recording the distribution of blasting materials. The execution of projects related to the implementation of new technologies at each organization, with Polish bituminous coal mines in particular, apart from problems related to legal, economical, techni...

The paper demonstrates the necessity for Russia to review its development strategy for energy markets and ensure phased transition to energy efficient technologies. Although the Paris Climate Agreement only outlines certain guidelines, implementing its provisions will have an impact on the Russian economy. The reason is that many countries have already embarked on a journey to carbon-free solutions and prevent products that do not meet their standards from accessing their domestic markets. Applying the Paris Agree...

The aim of our investigation is to reconstruct the local and regional palaeoenvironmental conditions and to highlight the rapid evolution of the thermokarst lake during the Holocene climate optimum. The investigated lake was located in Central Yakutia, Siberia, Russia. The investigated core was collected in a small pingo within a large Central Yakutian thermokarst Khara Bulgunnyakh basin (alas). According to ephippium analysis the formation of the lake coincided with the Holocene climatic optimum. Using cluster an...

Sites that arise after mining in our country are mostly unique habitats and should be dealt adequately. This fact is valid in particular for smaller sites of mining and mineral extraction. However, the restoration should not rely just on spontaneous succession. If there in the area are developing or is there a prerequisite of development of plant communities with important species (refuge, hot spots), it is always necessary to support the development of desirable successional stages, and, vice versa eliminate inva...

The article presents the results of test georadar measurements performed in the test area of ZakrzпїЅwek in Krakow (Province of Ma?opolska, Poland). The studied area is located on limestone formations, with numerous structures of karst origin (caves, sinks, sinkholes). A number of tests were carried out in the field with the use of ProEx System and RAMAC/GPR CU II of the Swedish company Mala GeoScience. Shielded antennas, with the frequencies of 100, 250, 500, 800 and 1600MHz, as well as unshielded antennas, with ...

Silica fume is a waste product created in the production process of metallic silicon, ferrosilicon and other silicon alloys in the electric arc furnace with or without heat recuperation of flue gasses. Microsilica as a waste hazardous to the environment after years of studies in laboratories and science institutes found its use in civil engineering. The utilization of silica fumes in civil engineering is mostly visible in the technology of high performance concretes (HPC). The examination of imposed thermal stress...

In this paper, resolve of improvement methods of performance of an elementary thermoacoustic cooler using the CFD approach was investigated. The research is based on preparing of possibly most accurate mathematical model of already constructed elementary cooling device and accomplishment of its further numerical analyses using commercially available numerical environment. In order to determine adequate methods of performance improvement, relevant changes in boundary conditions - concerning device geometry, materia...

In modern mining a tendency is observed to extend underground development of near open-pit reserves in thick ore deposits because of increase of open-pits ready to complete open mining operations or technical elimination. Researchers of Mining Institute KSC RAS have established that when developing the near open-pit reserves by mining systems of ore and country rock caving, the parameters of ore excavation and mining safety increase due to controlling ore drawing and constructing a thermal insulating layer. The ma...

The article is devoted to the improvement of circular saw machines with pneumatic drive of cutting mechanism. Currently, circular saws are widely used for producing of sawn timber because they have high productivity. The drive of saw blades more often is carried out by electric motors through additional transmission (gear, belt, etc.). In the recent literature are offered technical solutions, in which as a drive of circular saws provided by using of pneumatic. Energy source interacts with the circular saw will all...

Permanent improvement in the companies is reflecting also in area of living environment, mainly in area of waste management. Improving of business processes and looking for possibility how to avoid waste rising, how to limit their rising in the companies and in production activities, how to use technologies, saving natural sources, decreasing negative impacts to the living environment, recovering waste by recycling and reuse, and how to produce products, not creating waste for the client. All of the mentioned is g...

The purpose of this work was to investigate the possibility of wood preservation by its modification with different substances through the penetration method and to study the impact of the process on some operational properties of the wood material. The experiments were conducted with poplar wood (samples 10x1x1 cm), which has low density with well-developed capillary system, good absorption capacity and belongs to low operational capacities tree species. Alkaline activated hydrolysis lignin (AAHL), Cu2S and Malei...

Mining technical reclamation as the main technological process for the development of ore deposits with the open method, as well as the cost optimization of reclamation, taking into account possible technical solutions have been considered in the paper. The investigation proves that the time gap between the soil disturbance and reclamation should be minimal, that is, reclamation must be carried out not at the final stage of mining, but in the process of mineral mining. The reclamation time is directly related to t...

Depletion of soil fertility due to decrease in soil organic matter content represents a considerable problem in both developed and undeveloped countries. This paper deals with the comparison of compost (Cp) and mineral nitrogen fertilizer (NF) application on selected soil parameters which indicate state of soil environment, its health and quality. The main objectives of this study were (a) to investigate influence of Cp and NF application on total nitrogen (TN) and carbon (TC) content in soil (b), to determine pos...

Homogenization and geometric accuracy improvement of the heterogeneous geospatial data is possible by means of application of the adaptive transformation model and transformation model based on the radial basis functions. This can be achieved if the transformation models are based on a sufficient number of the adequate identical points that contain reliable information on the non-uniform and irregularly distributed positional distortions. Accuracy of the transformation final results depends on the choice of the tr...

Despite of the significant reduction of the injuriesпїЅ number in recent years, Poland belongs to the countries with high rates of accidents at work. One of the leading industries in accidents at work is hard coal mining. The accidents occurring, their effects, and the poor condition of health of employees (due to working in adverse conditions of physical work environment) are the cause of significant financial loss of victims, their employers, and also the entire society. Therefore the question is: what action sh...

The electrical power industry of the Russian Federation based on the performance of thermal power stations (TPS) is the largest consumer of the Russian coals. Currently the long-term development program of the Russian coal industry for the period till 2030 is adopted. One of its purposes is increasing supply of the Russian coal for power industry in the domestic market. The researchers dealing with the issues of power industry emphasize the drawbacks of the coal industry having negative influence on optimization o...

Communities are now working to prevent over-consumption of natural resources since the importance of protection of natural resources rising for improving environmental awareness through sustainable design solutions. Conventional issues mostly focused on to the forms and related functions of products. However, there is an urgent need to look beyond surface to develop environmentally friendly design solutions for sustainable development of cities. Environmentally aware design need to be redefined, as it converts env...

The effectiveness of using different beneficiation techniques of low-grade iron ore deposits of Assen iron ore mine in Thabazimbi, South Africa has been investigated. The sample received was confirmed to be low grade haematitic iron ore containing (39.18% Fe and 40.29% Si) both lumps and fines. The most abundant gangue present was silica. The different beneficiation methods such as shaking table, drum magnetic separation and reverse flotation were compared on the basis of which one yields a better grade that can b...

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...

The research program consisted of 3 tests series that was carried out in a foundation cushion using recycled concrete aggregates as stuffing material and geosynthetic materials such as geogrids and geocells as reinforcement. It has been used a steel box with following dimensions 1x1x1.5 m. At the top of the foundation cushion it was sat a concrete foundation (with an area of 0.4 x 0.4 m) and there were applied vertically centered static loads. The dynamic loads were applied using a shaking table that has a maximum...

Considering that there are more and more situations where there is a need of building structures on low strength capacity grounds, we need to find efficient methods not only from the technic-economical point of view, but also from the time consuming point of view. The rapid impact compaction method is also an energy efficient method because there can be used any type of ground found in the site (gravel). The process itself itпїЅs the usage of a device that consists in falling weight of 5 to 9 tons from a controlle...

The purpose of this research was to improve the nutritional and sensory properties of butter biscuits by addition of grape pomace. The pomace derived from two grape varieties, Pinot Noir and Italian Riesling, was dried at 60пїЅC for 8 hours daily, three days in a row. In the butter biscuits recipe, the wheat flower was replaced with three doses of grape pomace (10, 20 and 30%) added in the form of powder. A control sample, without any addition of grape pomace, was also prepared. The biscuits were analyzed in terms...

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 the paper a novel technique of impulsive noise suppression in color digital images is proposed. The new filtering design is based on the exploration of the local pixel neighborhood by geodesic digital paths, whose cost defined as a sum of squared Euclidean distances between adjacent pixels in the RGB color space, serves as a measure of pixel corruption. The digital paths link the border of a filtering window with its central pixel and the cost of a path with minimum value is used to discriminate between the noi...

Phosphate removal from wastewater is necessary at sewage treatment plant before discharging into the natural streams due to many reasons especially to preserve phosphate and to avoid eutrophication. Magnetite nanoparticles stabilized on ZSM-5 zeolites were used to adsorb, remove and recover phosphate from said wastewater. Three samples namely, magnetite, magnetite@ZSM5 and ZSM-5 were used for batch adsorption experiments. Results indicated the highest phosphate removal efficiency for magnetite@ZSM-5 material. Magn...

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...