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Over the last decade, due to the rapid increase in energy consumption, sustainability has become an increasingly important concern among developers and software and hardware users. The digital era brings about a fast and continuous production of information, whose management becomes a challenge for both large companies and users worldwide, in their private environment. The huge amount of data needed to carry out day-to-day operations means a continuing need for increased storage space, which translates into high h...

Forest tree species monitoring is important for forest management, habitat and biodiversity assessment, as well as carbon cycle estimation. Forest ecosystems provide important services to society, and sustainable management and adapted policies are essential to maintain their ecological and socio-economic functions. For implementing a good sustainable forest management it?s important to know about tree species distribution. To characterize forest was used during the time, field inventories who can provide timely a...

The purpose of this work consists in analyses of declustering catalogue and seismic sequence recorded in Vrancea crustal area . The moderate-size earthquake with local magnitude 5,7 which occurred on November 22, 2014 in Vrancea region, at 41 km depth, is the largest crustal event instrumentally recorded at the bending of the Eastern Carpathians. The crust seismicity in front of the Carpathian Arc spreads to the East, in a strip delimited by the Peceneaga-Camena fault, to the North and East, and to the South is lo...

The reduction of carbon dioxide emissions become the global effort of entire scientific community. Various environmental friendly technologies are currently developed and also applied worldwide. The concrete is the most used building material on Earth and its production is still rising. Its production is related to huge emissions of carbon dioxide due to Portland cement production and generation of waste such as concrete slurry waste (CSW). Sedimented CSW contains considerable amount of cement, calcium and fine fi...

This paper focuses on the transmission of loads imposed by passing trains to railway aggregates utilizing a pressure paper method, which enables the quantification of contact parameters on the interface between the railway sleeper bottom and railway ballast. Modern railway ballasted tracks consist of railway sleepers which fulfil especially the functions related to holding rail strings in the gage and inclination, enable fastening system installation, transmit forces and finally spread wheel loads on the ballast m...

The inductively coupled plasma optical emission spectrometry (ICP-OES) is recognized as a robust method for the determination of different elements in liquid and solid samples. However, for metals determinations from solid samples, digestion is required in order to dissolve the analytes into liquid solution. It was the aim of this paper to validate the ICP-OES method for determination of metals from zeolite samples after acid digestion. The suitability of three digestion procedures using wet digestion with mineral...

Buildings are responsible from 25% to 30% of greenhouse gases production, contributing significantly to global warming. One approach to limiting greenhouse gas production is construction and operation of buildings according to the principles of sustainable construction. There are 113 certified buildings in the Czech Republic. 57% of the total consists of an office building. For this purpose, the LEED and BREEAM global certification programs and one local certification program, SB TOOL CZ, are used in the Czech Rep...

Vegetation takes an active part in the processes of migration and transformation of chemical compounds on the earth's surface. The intensity of biogenic migration of chemical elements is determined mainly by the chemical composition of plants. Different availability of soil chemical elements and causes their different accumulation in agricultural plants. The widespread use of fertilizers, pesticides, active development of industry in the study region - all these factors can be attributed to the Rostov region at ri...

The article presents the use of the volcanic exhalations of Larderello geothermal field (Italy, southern Tuscany, Pisa province) for the construction of a large-scale heating system using geothermal heat of the Earth and make them available to visitors in the form of geotourist attractions (?Parco Geotermico Delle Biancane? with geotourist routes, e.g. ?La Fumarole?). The history of the use of inexhaustible energy resources contained in the interior of the Earth dates back to 1850, when in Larderello a heating pla...

A holistic approach to the design of ecological online services has been developed. The approach is based on the concept of the Internet of Things. Available online data includes local meteorological information and information on GPS coordinates of traffic flows. It allows to calculate in several seconds micro-weather characteristics, parameters of chemical and noise pollution of atmospheric air and parameters of algal processes of lakes and reservoirs. Verification of models of environmental online monitoring is...

Substances that have chemical energy are known under the generic name of explosives. The chemical energy resulting from the decomposition of explosive substances has constituted and will continue to be one of the main forms of energy used in many sectors of the economy as well as in the military field. The technical experience accumulated so far has demonstrated that it is very difficult for a simply characterization of the explosion. Thus, in order to achieve this it is necessary to know the thermo-chemical chara...

The aim of the study was to determine the Cu and Pb content in soil profiles in relation to main responsible factors in vertical distribution: type of soil, pH and mineralogical composition. Were exanimate 34 soil profiles from the industrial area of Craiova City. For each profile was collected bulk samples at different depths (40, 100, 150, 200 and 300 cm). The analytical techniques employed for the investigation of soil and rock samples were Atomic Absorption Spectrometry (AAS) for determination of heavy metals ...

Trace elements, including elements with a negative impact on the environment, are a natural part of the lithosphere. However, with increasing industrialization, there is an uneven spatial distribution and an extreme increase in the concentration of these elements in the environment. It affects their content in the soil-plant system content. The aim of the paper is to define the content of risk elements in the soil profile to determine the level and origin of the soil contamination. The soil sampling was conducted ...

Pile driving technology remains the most widespread method in Arkhangelsk where the presence of soft soils is an engineering-geological feature. Additionally, high quality of the pile shaft in the soft soil is guaranteed by using precast piles. New construction is mainly carried out next to the adjacent buildings. There are situations when pile driving by hammer can be safe for adjacent buildings. The monitoring of pile driving by diesel hammer was carried out at one of the sites in the city. The distance from the...

Daylight is very important at work. Natural daylight is a vital element in our daily life. Providing natural daylight into the working environment is of fundamental importance for the comfort, efficiency and safety for the people in that environment. This paper deals with visual comfort evaluation in administrative building, in office spaces. The human eye is able to perceive light at the moment it occurs. It cannot accumulate or move it in the human body for future use. Light perception is a complex process that ...

A long term EU effort is to reduce CO2 emissions in order to stabilize climatic changes. Reducing buildings energy consumption is a necessary step to achieve this goal. Since 2020 all new buildings in Czech Republic must be designed as nearly zero energy. It sets low energy consumption requirements as well as requirements on indoor environment quality. However one third of residential buildings in Czech Republic was built before the year 1945 and does not meet these demands. Refurbishments of these buildings shoul...

The Prague Housing Fund has consisted of houses built by heavy prefabrication system between 1950 and 1990 to a large extent. These houses are being continuously renovated. The refurbishment emphasizes the reduction of energy losses and neglects other factors of the indoor environment (air exchange, humidity, overheating, etc.). The article deals with the above-mentioned problems of interior overheating in terms of the effect of shading elements on the appearance of facades. It assesses several types of shading wi...

The cause of the explosion is the thermal energy delivered by the flammable/ fuel ignition source. The action of the ignition source on the flammable medium can be direct or indirect. The most common of the direct sources of ignition are open flames and electric and mechanical sparks. These sources release their energy into the environment, which, if it contains flammable substances in appropriate proportions, is initiated. This is followed by a chain of fuel oxidation reactions and by the propagation of a flame f...

Bacillus megaterium is a bacterium that has been used for the industrial production of vitamin B12 (cobalamin), the anti-pernicious anaemia factor. Cobalamin is a modified tetrapyrrole with a cobalt ion coordinated within its macrocycle. Previous findings outline a potential way to develop B. megaterium as a cell factory for cobalamin production using cheap raw materials. In this paper, a novel strategy was implemented to investigate the possibility to use sunflower protein isolates and its enzymatic hydrolysates ...

The paper analyzes failures of retention reservoirs of waste water located at the premises of an important power-engineering facility. Waste water retention reservoirs have been broken during their existence. The character and extent of the failures have caused serious concern to the operator about the loss of tightness of the retention reservoirs at which the entire operation would be seriously compromised. For the design of effective and functional remediation measures, it was necessary to clearly define the ext...

Despite preventive measures, it is not possible to fully eliminate natural disasters, damages and other undesired events. These may have such negative impacts that might turn into a crisis situation. Provided the crisis situation occurs, it is necessary to have an effective system and tools of crisis management. The activity of crisis management represents the solution to the crisis situation using specific principles, procedures and methods aiming at overcoming or minimizing the negative impacts and renewing part...

Food processing wastes are the end products of the food processing industries which cannot be recycled or used for other purposes. They are the non-product flows of raw materials whose economic values are less than the cost of collection and recovery for reuse; thus they are discarded as a waste. These wastes pose increasing disposal and potential severe pollution problems and represent a loss of valuable biomass and nutrients. Avocado, mango and pomegranate processing significantly produces amount of waste (peels...

Circular economy has become a world trend, and the only way of economic sustainable development. Waste utilization in concrete technology have much to offer in terms of helping to achieve circular economy goals. Recently various types of waste have been widely recycled as a substitute of fine aggregates in concrete technology. The use of waste as a replacement of natural aggregate is the best sustainable method in order to find alternative ways for conserving the environment. Concrete is the most widely used build...

This paper compares four growth models (Logistic Model, Gompertz Model, Richards Model and Stannard Model) using the experimental data of wastewater treatment from a single sell protein production with Bacillus subtilis in order to describe bacterial biomass growth. One model was used to describe carbohydrate consumption during the bacterial fermentation. This study was carried at the Department of Biotechnology (Mendeleev University of Chemical Technology of Russia) as part of deproteinized sunflower meal bioconv...

The land subsidence caused by underground mining results in land form transformations in the Silesian Upland, which is located in southern Poland. The aim of the research was to determine the role of subsidence basins as new sedimentary basins and local erosion bases. Detailed research was carried out in selected mining subsidence areas where most extensive and spectacular subsidence basins in the Silesian Upland have formed. As part of the field work, the geological structure of the area was examined and detailed...

Water in general and especially drinking water, is becoming an increasingly scarce commodity in the Central Europe region due to the climate change. For a human, water is a bare necessity of life. The necessary amount of water to maintain human life is several litres a day. However, in a modern way of life, daily water consumption is usually over 100 litres. This amount accounts only for the personal consumption. To ensure the operation of national economy, consumption must be much higher. There are two ways how t...

The objective of the present study was to evaluate by means of chemical analyses the quality of water collected from fish pond Tataru, Calarasi County. The water samples were collected during May 2017 from five sampling points (A, B, C, D, E) from three depths (surface layer, half of maximum depth, maximum depth). The subjected parameters were pH, electrical conductivity (EC), total hardness (TH), chemical oxygen demand (COD), nitrate nitrogen N-NO3-, nitrite nitrogen N-NO2-, ammonium nitrogen N-NH4+, phosphate ph...

Sustainable development has been conceived as a solution to the ecological crisis caused by the intense industrial exploitation of resources and the continuous degradation of the environment and seeks primarily to preserve the quality of the environment. Sustainable development also brings to the forefront a new set of values that will guide the future model of economic and social progress, values that focus on man and his present and future needs, the natural environment - protecting and preserving it, and mitiga...

Glucose toxicity is a well-established being that has been proven in higher vertebrates. The goal of this the present study was to elucidate the response of farming fish gibel carp Carassius auratus gibelio to waterborne sucrose in low (5.55 mM, LS) and high (55.5 mM, HS) concentrations for 21 days mimicking carbohydrate-enrich diet. An increase in blood glucose levels, body mass and hepatosomatic indices were the common sign for both concentrations of sucrose. The treatment with low concentration of sucrose provo...

Nowadays, due to environmental pollution, finding and using alternative sources of energy is a priority for any economy. For this purpose, scholars from all over the world are focusing on finding the best alternative sources of energy. One example is the wave energy. This natural source is characterized by being renewable, inexhaustible, not polluting, thus is not contributing to global warming by generating emissions. Yet such a resource is extremely variable. The aim of this paper is to analyze the Black Sea wav...

In paper, we present the development results of web-based tools for natural risk management during the implementation of large projects within environmental economics. If the projects are implemented in the Arctic and subarctic regions, the composition of natural risks must take into account climate change. While research, we used Foresight technologies, risk management approach, theory of decision making under uncertainties, web-technologies of data bases constructing. Within geoinformation management paradigm, w...

In the current context, characterized by the alarming increase in pollution caused by energy production from fossil fuels it is becoming increasingly important to reduce this dependence. Wind energy can be a very good solution to global energy problems. Romania's wind potential is considered one of the largest in Europe, the Dobrogea region having the largest wind potential in Romania. The objective of this paper is to draw an image of the near future projection of the wind potential in this region. The problem of...

Geotechnical soil model is a result of extensive investigation techniques and represents the base for quality landslide characterization. Paper presents a geotechnical investigation process in a six distinctive phase workflow on the case study landslide Orehovcak in northern Croatia. The process starts at the office by collecting available information relating to the site topography, as well as all available geology maps and data. The second phase incorporates detailed field mapping and survey of structural damage...

One of the complicating factors in oil production is the deposition paraffin, as a result of which the production well rate is decreasing and the Electric submersible pump failure occurs. The main factors influencing the intensity of paraffin formation are: downhole temperature, gas evolution, hydrocarbon composition in each phase of the mixture, high viscosity of oil, change in the velocity of the gas-liquid mixture. To solve problems, the thermal method is used, which consists in artificial increase of the well ...

The objective studied is a collective dwelling with the height regime of S + P + 3E and offices located on Str. Borhanci, Cluj County. From a geometric point of view, topographic surveying works ensure the application of various types of constructions, ways of communication, art works, hydrotechnical works on the ground. In our case, the execution of the tracing works was accomplished by moving from the upper to the lower order, from the geodetic state to the tracing base. An essential factor was the choice of the...

The global economy needs significant changes that will reduce the high consumption of natural resources and the amount of waste generated. The idea of solving the circular economy proposes a path to solve such problems. Thematically, it covers social, political, economic and production issues. However, it should be noted that Circular Economy is not a ready recipe for solving the problems of depleting raw materials and the deteriorating condition of the environment. The basic premise of Circular Economy is a simpl...

Currently, the population of the Earth, reaching a value of 7.2 billion people (2014), continues to grow rapidly. This leads to an increase in the demand for food, energy, minerals, which in turn enhances the anthropogenic impact on the biosphere, at the same time increases production and consumption waste and worsens the ecological situation. The problems of urbanization should be attributed to the most acute technospheric problems - increasing the role of cities in the development of society, as well as the grow...

Natural hydraulic lime (NHL) belongs to traditional binders used in civil engineering for centuries. Hydraulic lime (both natural or artificial) may be considered as binder which properties represents a transition between air lime (pure CaO or Ca(OH)2) and Portland cement (PC). It means that NHL contains hydraulic compounds (as PC) and CaO/Ca(OH)2. The significant difference is in calcination temperature ? NHL is calcined at lower temperature than Portland clinker i.e. there is lower energy consumption (and carbon...

Levulinic acid (LA) is a substance, which can be obtained from cellulosic biomass via acid hydrolysis. Hydrogenation of LA to gamma-valerolactone (GVL) is one of the most promising reactions in the field of biomass valorization to fine chemicals and liquid transportation fuels. Potentially, GVL obtained from lignocellulosic biomass is a versatile intermediate for the production of fuel additives and chemicals. Due to the high demand for GVL, its efficient production is currently a topic of intensive research. This...

The high number of freshwaters and wetlands is a characteristic feature of arctic and subarctic landscapes in the northern Russia. Arctic freshwater ecosystems are especially susceptible to the negative consequences of global environmental change drivers. We studied zooplankton communities of 14 small tundra lakes in the Pechora River delta (in the northeast of European Russia). The composition, structure of zooplankton, and ecological stage of lakes were analyzed. A total of 107 zooplankton taxa were identified. ...

Zooplankton plays a significant role within the Black Sea ecosystem, contributing to the top ? down regulation of trophic web, by intermediating vital ecological processes such as the nutrients recycling (e.g., by controlling phytoplankton and bacterial aggregates development) within the pelagic and benthic habitats. It is considered an important indicator of ecosystem health, being a quality assessment element within the Water Framework Directive (2000/60/EC). Based on the 55 samples collected in the Romanian wat...