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Here we report immobilization of GOx on magnetic silica: (i) nanoparticles Fe3O4 with silica coating (Fe3O4-SiO2) and (ii) mesoporous silica with incorporated nanoparticles Fe3O4 (SiO2-Fe3O4) functionalized with amino groups using glutaraldehyde as a linker. Magnetic support based biocatalysts demonstrate high catalytic activity in D-glucose oxidation to D-gluconic acid at pH 5-7.5 and temperature of 30-50?C with the best activities of 95% and 94% for SiO2-Fe3O4-GOx and Fe3O4-SiO2-GOx, respectively. A comparison o...

The energy system is an area which requires a large enough attention in the process of automation and the use of all the possibilities of producer of energy from renewable sources. It is not enough to produce energy but also to collect and trade to the true value, without being used intermediate bodies for recouping. Drop is a technology that allows users to collect data, information from one or more establishments located remotely and send instructions with limited control by them. The article presents a study wh...

The use of chemical crop protection products takes the lead in worldwide agricultural technologies. However, a significant part of pesticides does not achieve the goals, disperses in the environment, and accumulates in crops and food products. Targeted and controlled delivery of pesticides helps to decrease the overuse of chemicals due to the prolonged gradual release of active ingredients from matrices and maintaining of effective concentration in the application zone. The aim of this study was to evaluate the ef...

The world today is characterized by globalization, the development of information technologies and diversity of values, so people's activities in a wide variety of fields are expanding, but the boundaries between them are becoming more and more uncertain. Different fields are converging. Today, knowledge transfer is not possible an individual must be able to apply knowledge, use skills and show attitudes in complex ways to solve problems in real life situations. The current competence is the ability to adequately ...

Plant biodiversity is important in economic terms in Romania, as well as for the ecosystem aspect maintaining and giving spiritual value and comfort. As a result, the article aims to focus attention on the appreciation of plant species in the center of an inexhaustible source of renewable energy. Agricultural holdings in Romania mainly cultivate cereals, some with records in production (for example maize production in 2018). Cereals are well known for their food potential and animal feed. At the same time, after h...

Nowadays, the energy sector of any country is confronted with many urgent problems. This is due to the fact that this sector, like others, it works mainly on a heritage of the past (conventional sources of energy). The aim of this paper is to analyze the economic aspects of extracting clean energy in Romania. In this scope, a comprehensive analysis of the wind potential in parallel with the economic potential is conducted. For the wind analysis a data set that covers a 30-year interval (01 January 1989 to 31 Decem...

The national report on innovations declares that the innovative system in Russia is weak due to unfavorable environment for innovations, including problems and challenges in commercialization, infrastructure, culture, knowledge and institutions The above-mentioned environment is of special importance for innovative territorial clusters with a large number of scientists who ensure the permanent reproduction of innovative potential. Under these conditions, the priority is to create innovative eco-environment for the...

In this work hydroxyapatite (HAP) nanoparticles ranging in size from 30 to 150 nm of lamellar and rod-shaped form were obtained by controlled deposition in the presence of a stabilizer. HAP nanoparticle powder in different mass ratios was added to a mixture of biocompatible polymers (sodium alginate and PLGA), which were the dispersion medium of the emulsion. Water or an aqueous solution of sodium citrate was used as the dispersed phase. The internal structure of the matrices was studied by scanning electron micro...

The oil and gas industry faces problems such as hydrates, waxes, corrosion and asphaltenes, which among them the formation of hydrates is one of the most serious problems.Gas hydrates include water and light gas molecules and the form at low temperatures and high pressures, as these conditions are available inside the oil and gas pipelines. They are responsible for the blockage of flow lines, valves and well heads, thereby causing great loss of production and other severe safety hazards to the oil and gas industry...

This paper presents a study of the wastewater treatment station of the ?Low Danube", in which were analyzed the variations of physico-chemical parameters of the influent and effluent, as well as the efficiency of the treatment processes. The requirements on the quality of the effluent are in accordance with Council Directive 91/271/EEC on wastewater treatment, which aims is to prevent the negative effects of discharges of urban waste water and waste water from certain industrial activities. The parameters analyzed...

The quality of environment is one of the most important factors which effects on the living conditions. Ordinary people hardly understand the general statistical data at national level for environment but they assess by intuition and show on government and local authorities their opinion for pursued policy. The goal of research was designing an integral index for complex assessing of environment at regional level by studying and analyzing of used indicators for monitoring of environment at this administrativeterri...

The humus acids, which are part of organic matter, are an important part of the soil. Their properties affect the various pollutants, including trace metals. The article presents the structural and functional composition of humuc acids in the Euro-Arctic zone soils, which was investigated by the methods of molecular spectroscopy. An assessment of ecoprotective role to trace metals was made, which especially important for sensitive Arctic soils, formed under the influence of permafrost (cryogenic) processes. Differ...

Local or regional forest loss may be considered a forest management problem that mainly affects countries that lack proper forest monitoring and law enforcement procedures. Romania is an appropriate example regarding this matter, the main issue being the massive illegal cuts that are difficult to monitor, record and sanction. Therefore, the desiderata of precluding this outlawed practice and of preserving the forest cover ? which accounts for almost 29% of Romania?s territory (2015), are not attainable without rev...

The analysis of extensive seismological databank of one of deep mines of Norilsk?Talnakh polymetals deposits was performed to assess the shock hazard statement of rock massifs. The kinematic parameter is proposed for estimation of shock hazard of rock massifs which is based on kinematic characteristics of seismic processes. This parameter is the ratio of the migration speed of the equivalent seismic energy release center and the apparent speed of the aftershocks of individual large seismic events within the contro...

The aim of the present study is to evaluate the possibilities of historic urban parks as places of attractiveness. The historical urban parks are nowadays important not only because of their historical heritage, they are also ecosystems that have economic and social value for the community. Historical and cultural developments change these parks, creating their new environments, as the main requirement for their historical development. The formation of cultural elements and landscapes are reflecting the historical...

The study was aimed to assess the environmental safety of Russian companies. The research is based on the analysis of the Russian companies? reports in the field of sustainable development. One of the main goals of the study was to identify problematic areas of improving the environmental accounting system and indicators of environmental reports of companies that use the natural resource. The methodological basis of the study was the Russian and international legislation in the field of ecology, standards of susta...

This research consists of the accumulation of scientific data regarding the evolution of certain components of agricultural land productivity, regarding the cosmic-atmospheric (temperatures, rainfall) and the telluric-edaphic conditions (hydro physical features like: humidity, field capacity, useful water capacity, wilting coefficient) needed to substantiate current pedoameliorative technologies for their efficient use through a complex approach of the physical-geographic and climatic-edaphic conditions in the Low...

In work results of researches of the heat-generating flameless heaters on the basis of not extinguished lime (calcium oxide) with addition of active and inert components in relation to a warming up of canned meat products in interaction with water are presented. The optimum ratios of components of the heat-generating heater providing the maximum heat release in interaction with water are established. For packing of tinned meat products in an aluminum jar and retorts packages in contact with the heat-generating hea...

This paper presents the results of a study of the mineral composition of rocks on the example of one of the high viscosity oil deposits. Studies were performed using X-ray diffraction analysis. Samples of both the reservoir itself, represented by bituminous sandstone, and samples of overburden and underlying formations composed of clays and limestones were studied. Samples were taken from several wells, which makes it possible to judge the variability of the mineral composition along strike. The content of clay mi...

A large amount of geological, geophysical, geochemical and other materials of various contents and scale has been accumulated in Kazakhstan because of the work of several generations of geological researchers. At this stage of geological research development, an actual problem is the possibility of processing and mastering this data based on modern geoinformation technologies (Mapinfo, Arcgis, Micromine). This new approach to the methodology of geological research allows the transition from a qualitative assessmen...

Glucose on an industrial scale is obtained in anhydride (at a temperature above 50 0C) or hydrate form (at a temperature below 50 0C). The crystallization process is conventionally divided into two stages: nucleation ? the formation of nucleus and their growth to crystals of technical dimensions. The most difficult stage is the formation of nucleus during the crystallization of hydrate glucose. Spontaneous formation of nucleus is slow and they have a fragile needle shape, from which it is difficult to grow technic...

Spatial 3D-reconstruction applications today use mostly fully automated methods based on Structure from Motion (SfM) and Multi-View Stereo (MVS) algorithms. In these cases it is emphasized that the camera calibration parameters can be approximate, i.e. downloaded from EXIF data or even avoided, to facilitate the use of uncalibrated cameras in everyday measuring tasks. However, the accuracy of the spatial reconstruction of the model, recorded with an uncalibrated camera can be significantly reduced. Especially if t...

Buildings produce about 30 % of all greenhouse gases and consume about 40 % of globally produced energy. Construction industry significantly contributes to climate changes. An approach to limit production of greenhouse gas is construction and operation of buildings according to the principles of sustainability. There are 186 certified (green) buildings in the Czech Republic. 48% of them are office building. After them, 29% are industrial areas. The LEED and BREEAM global certification programs and one local certif...

Neighborhoods of standardized concrete block buildings form a significant part of the post-socialist build heritage. It is very important to renovate the houses to suit the needs of the current user. The reconstructions typically affect the apartment layout (e. q. uniting the kitchen with the living room, bathroom renovation) and also the indoor environment (thermal insulation, window replacement, installing air conditioning units). One of the alterations that has a major impact on both the apartment layout and th...

Nowdays, a degree of contamination by heavy metals can be observed in the environment. Heavy metals have serious effects on all living organisms because they can accumulate in lethal or sublethal concentrations in the various parts of food chain and so they can cause different health problems like cardiovascular, psychosomatic and cancer diseases. This work is focused to the rate of some risk elements contamination in agricultural alluvial soils from specific area of the region Hont ? alluvium of the river Stiavni...

The most widespread objects of industrial construction in the Leningrad region are waste landfills and roads. The anthropogenic load of industrial facilities, such as solid waste landfill and construction sites of two express roads on the soil and vegetation cover of Leningrad region was studied. One of the main pollutants of the soil and plants are heavy metals. The accumulation and distribution of heavy metals in the "soil-plant" system depending on the properties of the soil and vegetation cover was investigate...

The underground mining development in Low Tatras focused primarily on gold, silver and partly iron ore exploitation began in the Middle Ages. At the end of the 16th century, manually created mining underground spaces (vertical shafts and horizontal galleries) were already 100 m deep and several hundred meters long. The mines were situated also at the top of the mountain range at an altitude of approximately 1400 meters above sea level. During the 16th century silver mine called St. Michal was created on the ridge ...

One of the most investigated topics in hydrology, during last decades, is climate change impact on hydrological cycle. Changes in the use of land is additional factor influencing hydrological regime and watershed run-off. To understand urbanisation and climate change cumulative impact on watershed run-off, modelling of different climate change and land use scenarios would be essential. The aim of this study is to investigate how watershed run-off of the Usma Lake, located in Kurzeme region of Latvia, will respond ...

Increases in bioresources and food production in the world have become objective needs. Production expansion increases the impact on the sustainability of the natural environment and ecosystems. The sustainability of the natural environment is ensured through the creation of specially protected areas. The planning of local municipality economic development should consider the management categories of protected areas, which is an important global standard for planning, design and management. This paper presents an ...

The harmfulness of plastic waste on marine organisms and species has been demonstrated. Throwing and dumping plastic waste is causing damage to the environment, causing economic damage to activities such as tourism, fisheries, and sea traffic, and can affect people's health through the food chain. The paper will outline ways and measures to prevent the introduction of single-use plastic into the marine environment as well as the possibility of producing biodegradable plastics. Through this paper concept of marine ...

For assuring the stability of important buildings (nuclear power plants) during strong earthquakes, the soil strata under these buildings should not get deformed during the events. In the paper will be analyzed the nonlinear behavior of soil layers during strong earthquakes. As follows from the soil dynamics experiments, shear modulus G and damping D become functions of strain level , and nonlinear behavior could take place. Further, changes could appear in the mechanical properties of the soil layers, expressed b...

The stability of underground works has always occupied an important place in engineering. Their stability depends on how the design and execution of the underground works are done. The instability of underground works, in most cases, also has consequences on the surface because it can affect land and constructions. In the case of salt?s operation with rooms and pillars, the stability of the underground space depends on how the rooms and pillars were dimensioned. But besides designing the geometry of the undergroun...

The article discusses the various ways in which environmental factors influence socioeconomic welfare of individuals in the regions of Russian Federation, with an in-depth look at the regions of Ural Federal District. We use regression analysis to examine the mechanisms of direct influence that environmental factors have on individual welfare indicators, healthcare, social and economic welfare modules, and, finally, on the composite welfare index. We then examine the indirect influence of environmental factors, ma...

In the vegetable growing field, the germination is an important indicator in the appreciation of seeds quality. The process takes place over a variable period of time being influenced by a number of factors such as species, environmental conditions and the treatment applied to the seeds. We used citrate - stabilized gold nanoparticles to prevent the occurrence of fungi and to stimulate the germination process of carrot seeds. The gold nanoparticles were synthesized by mixing and heating aqueous solutions of chloro...

Natural bitumen and high viscosity oils are of great interest in the oil industry in recent years. Presented in this study high viscosity oil reservoirs are characterized by high lithological and structural heterogeneity. Such heterogeneities in reservoir reservoirs pose new challenges for geologists in lithological and petrophysical studies. First of all, it is the development of methods for interpreting well log data for the investigating structures. In addition, it is an analysis of the data obtained when inter...

Plants are the main recipient of heavy metals found in soil, being at the same time a source of these metals for plants, animals and human organisms. The search for methods limiting the availability of heavy metals remains valid. Many years of research are being carried out at the Warsaw University of Technology, regarding limiting the availability of heavy metals to the trophic chain by introducing into the soil organic matter. The aim of the study was to analyse the content of heavy metals (Zn, Pb, Cd) in radish...

This article presents the influence of pentosanases enzymes on the rheological parameters of the dough obtained from rye flour. The rheological characteristics of the rye dough were determined using the alveographic and consistographic methods. The functional properties of the main constituents of rye - starch, proteins and pentosans influence the baking characteristics rye flour. Rye does not contain as much gluten as wheat, and the quality of rye gluten is poor when it comes to retaining gases. This means breads...

The aim of the study was to assess the influence of the soil pH, from ploughed soil layer from the Ialomita region, on the mobility of heavy metals (Cadmium, Copper, Manganese and Zinc), estimated by heavy metals extractable contents in DTPA-TEA-CaCl2. Because heavy metals exist in soil in different solid-phase forms that vary in terms of availability, total content of metals in soil are poor indicators of toxicity. In order to assess a risk of heavy metal pollution in soil should consider both mobile and availabi...

The forest road network administered by the National Forest Administration - Romsilva, with a total length of 26,500 km, was built, in the most part, between 1965-1990, when the forest railways were transformed in forest roads. Simultaneously with the extension of the forest roads network, the car transport there was imposed in the forestry sector, having both technical and economic advantages. Due to the special technical development, the transport vehicles have undergone a rapid modernization, which has led to t...

Recent studies has shown that road traffic pollute the environment not only by generating exhaust gas emissions but also by the suspensions produced from tyre wear. Due to their composition (natural rubber, synthetic rubber and other chemicals), vehicles tyres through the interaction with the driveway pollute the environment. This process can be accelerated in a negative manner by the appearance of some technical malfunctions of the steering system. Thus, by a quick and efficient diagnosis of the steering system e...

Reducing gas emissions which affects the Earth's climate system is an important goal of vehicle operation. In order to achieve this objective, the operation of motor vehicles and their component systems must be carried out under the most efficient conditions. The maximum efficiency can be achieved by knowing in detail the technical state of the vehicles, and depending on the diagnosis defects by performing maintenance activities in order to maintain the technical state at an appropriate level. The aim of this pape...

The article presents an analysis of the impact of wind speed on the temperature changes in the external three-layer partition of a green building during winter period. Data for analysis were taken from temperature sensors located in individual layers of the partition and from a weather station on the roof of a smart building. The analysis period was January 2015. The purpose of the analysis was to determine the correlation between the wind speed and the temperature inside the partition. In the analysis period of o...

The positive effects of biochar on soil structure were demonstrated in many studies. Substantially less, even information on the interrelationships between Al, Fe forms and soil structure induced by biochar application as well as its re-application is still absent. Therefore the aims of this study were: (1.) to evaluate the changes in soil structure parameters affected by biochar application and its re-application in different rates (0, 10 and 20 t ha-1), (2.) to evaluate the effect of biochar application and re-a...

This paper is devoted to a descriptive model of the new diorite-granodiorite related deposit in the Eastern Yakutia (Russia), with Iron Oxide Copper-Gold ore style mineralization. The methodology include field works with grab sampling and chemical analyses of ore and host intrusive rocks. The major element compositions were analyzed using methods of spectrometry, atomic emission spectrometry, ionometry with ion-selective electrode, gravimetry, titrimetry. Trace elements were identified by inductively coupled plasm...

The article is devoted to study of the issues regarding legal regulation of climate protection in Ukraine. The national legislation in the field of climate protection is analyzed and directions of its further development are determined. It is established that the problem of climate protection is a complex and common one for all mankind, that requires effective and progressive response and necessitates the improvement of national legislation in this field. Such legal category as a climate emergency is considered as...

The paper objective was to emphasize the quality of the biodiversity life in an anthropic polluted soil and to underline the influence of the biological activity on the evolution and self-remediation of this soil. The studied site is located in the Apuseni Mountains, in the Ampoi Valley, on a slope ? 25%, facing north, under pine plantation. In the area, the prevailing soils are Cambisols and Luvisols formed into the coarse slope deposits dominated by sandstones. The site pollution was due to the atmospheric emiss...

In the conditions of a sharp decline in demand for scientific research and research, caused both by a significant reduction in the scale of investment development and by the prevailing import of equipment with appropriate technologies, for applied scientific organizations it becomes increasingly necessary to directly participate in the industrial production of high-tech high-tech products. Identify and evaluate the main factors and conditions that determine the feasibility of producing high-tech products based on ...

Iron precipitates mainly in the form of hydroxides and phosphates. The study of this process in field experiments using Fe2(SO4)3 additives is of great scientific and practical interest. Since phosphorus compounds are involved in the processes of eutrophication of water bodies. To study the patterns of changes in phosphate concentrations with the addition of iron (III) ion, absolute and relative concentrations of phosphorus and iron in the form of FePO4 were calculated. Then an experiment was performed to add the ...

The purpose of our research is to develop methods, models and algorithms of cognitive geovisualization for regional management support systems. The paper describes the information technology of automated synthesis of cognitive user interface. The cognitive interface increases the efficiency of working with space-time data when solving spatial planning tasks. We used the methods of system analysis, conceptual modeling and ontological design of subject area. Special attention was paid to the issues of user interacti...

Alkaline basalts in the southern area of the Persani Mountains are of particular interest for studying the tectonic evolution of the area at the end of Neogen and the beginning of the Quaternary. It is also very important the existence of an important amount of ultra-basic xenolites in these rocks. These xenoliths provide important information about lithology, chemistry, and the evolution of the lithospheric mantle in the area. For this purpose, we analyzed 30 samples of both basalts and xenolite samples. The samp...