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The continued effort for economic design of steel structures leads to decrease their weight by shape and material optimization through the using of thin webs, high-strength steels and their effective combination with usual structural steels. The efficiency of high-strength steels using and their combination with usual structural steels is evident in the case of beams mostly subjected to bending loading. But from the complex optimization analyses follow, that the using of high-strength steels and their combination ...

The aim of this article is to study astronomical refraction anomalies. Back in 1925 Grachev and Banahevich found systematic errors in meridian observations depending on zenithal distance. Grachev suggested that these refraction anomalies arise from the inclination of the Earth's surface to the South. The airstratas of the same density were considered as parallel to the Earth's surface. But the analysis of latitude observations from the Bamberg and ZTL-180 telescopes showed there were significant systematic errors ...

The specific energy consumption is mainly influenced by kinematics and dynamic measures of vertical transport installations as well as by the compatibility of different composing parts and their subcomponents. The optimisation of kinematics and dynamic parameters characterising a transport cycle is decisive considering the energy consumption. Also considering the operation of the vertical transport installations, as well as the character of the variation of kinematics and dynamic parameters during a race, it has b...

Podhale (S Poland) is one of the most promising regions in the country in terms of its geothermal resource potential. The use of geothermal waters for heating purposes commenced there in the beginning of the 1990s. The Podhale region provides excellent conditions for the use of geothermal energy, such as a well-developed infrastructure for the heating industry, recreation, balneotherapy and other applications. The assessment of the geothermal potential should always take an accurate identification of the geologica...

This study aimed to assess the potential of renewable energy resources in Romania and the potential of distorting the energy resources consumption. In this respect, the authors compared the status of Romania with the status of two other countries, Estonia and Croatia, selected as their development of resource use productivity compared with the GDP expressed in euros, with 2010 as the reference year, is the closest to the growth Romania saw in 2000-2015. By considering, as measures, the average GDP in constant pric...

The article presents the genesis of safety assessment of LNG tankers, along with safety criteria. The utilitarian need to carry out simulation research risk assessment in respect of a LNG carrier manoeuvring in restricted areas has been justified . As a standard vessel an oil tanker has been assumed meeting the authorisation requirements of the the selected LNG terminal. The shipпїЅs operational conditions have been identified and correlated with the manoeuvres in the terminalпїЅs area. The mathematical models of ...

The data recorded by the National Oceanic and Atmospheric Administration (NOAA) and the National Aeronautics and Space Administration (NASA) have led to the cataloguing of the year 2016 as the warmest year on worldwide meteorological records. The two previous records listed were the years 2014 and 2015. Phenomena like El Nino and La Nina are responsible for the cooling or heating of the upper tropical zone of the Pacific Ocean. This causes variations in global wind patterns and weather, thus leading to short-term ...

In recent years the small hydrographical basins were affected by numerous extreme hydrological events. Genesis of floods from these hydrographical basins is linked primarily by climatic conditions and other factors such as: geology, soil by its temperature and its humidity, vegetation, topography trough slopes, shape and surface of the hydrographical basin, which influence the concentration time and water volume. Mike She model is able to simulate the entire stream flow. This paper is using Mike She Model for runo...

The present work is focusing on construction and analysis of 5 lunar models using space and ground observations. Firstly, it should be noted that the task of building a model of the lunar macro-figure relative to its center of mass and axes of inertia does not have a definitive solution yet. Within the present work the models of the lunar macro-figure are developed on the basis of space and ground observations. The methods of observation had implied binding of lunar objects to stars, i.e. celestial coordinate syst...

The technology of cutting with a plasma arc is today a very advanced solution for thermally cuttable conductive materials. Plasma or also the plasma arc is composed of positively and negatively charged particles, excited and neutral atoms and molecules. As it contains free particles, it is electrically conductive and thus subject to the effects of an electric and magnetic field. This article discusses the use of plasma cutting technology on a CNC machine. The resulting quality of the plasma cutting is determined b...

In most industrialized countries the problem of air pollution has become a major concern with significant social and political implications, is considered a barrier to economic and social development, drawing attention to these natural resources, materials and energy are not inexhaustible. In the literature are numerous researches on environmental pollution, correlated or not with the consequences on animals and food of animal origin, and not least on health human. In recent times the environmental pollution has d...

In studies on the assessment of the impact of environmental noise sources, depending on the objective set, there are used various supporting models and technologies. In the article, there was carried out the analysis of the selection of physical and psychoacoustic variables caused by the noise sources. They were determined the basic psychoacoustic measures of sound quality for registered acoustic signals in urban environment. The results were compared with the results obtained in the experiment. There was carried ...

Environmental protection and sustainable development are two of the of great topics of interest and much concern for the new generation of passive dwelling constructors, designerпїЅs architects. In the past less concern was attached to the use of environment friendly materials in harmony with the European legislation for the construction of passive dwellings and to the questions constantly raised by life: constructors and beneficiaries should meet the legislation on these constructions in harmony with the environm...

This article presents the results of studies and research performed for the development of some environment management systems, based on information linked to the spatial and temporal distribution of areas with rainfall deficit. Climate change is a complex phenomenon, accompanied by a wide variety of effects. Rapid alternation, between severe heat wave/drought and abundant rainfall/flooding, is more and more obvious. Aridity increase, drought, erosion accentuation and soil desertification are considered to be seve...

The river monitoring activity from the territory of the Banat hydrographic space which is situated in south-western part of Romania started in the 19th century, when the achievement of drainage works were started, of great amplitude, in the subsidence area of the Western Field, where there several swamps and frequent floods took place, and when several hydrotechnical works were performed, based on studies and projects, for which several observations and hydrological measurement where necessary. The occurrence of t...

Interior conditions in closed spaces (housing, offices, vehicles) were for a long period of time focused on the thermal comfort. With the awareness that people spend a good amount of time inside these spaces and with the increase in life quality, it was considered an additional problem the ensuring of a proper indoor breathable air quality (by limiting the concentrations of harmful released substances). It was demonstrated that the interior pollution of those spaces primarily depends on two factors: interior harmf...

Proposed methods of thermodynamic description, modeling and calculation for different physico-chemical processes running in various natural and technological systems, represents each of them as a solution (solid, liquid, overcooled) of all its components, which itпїЅs composed, - i.e. with provision of all potentially possible chemical transformations capable to take place in system. Development of the approach includes the correct account of heterogeneous equilibrium of type: the system пїЅ gas environment (atmos...

The sustainable development is an important issue for our society. Thus, urban green spaces are a key element in order to assure a sustainable urban development. Although, most often they are associated as having only an aesthetic function, the urban green spaces perform important socio-economic and environmental functions. Therefore, ensuring the existence of a great number of green spaces within an urban area is one of the objectives of the new European policies for urban planning, taking into account the sustai...

At the time of commencement of the documentation and investigation activity on the problem of critical statuses of the tailings dump and decanting ponds at Rosia Montana, with special reference to the decanting ponds пїЅValea Seli?teiпїЅ, the subject, respectively the studied area presented a accelerated dynamic as regards the degradation of the environmental components. Information gathered from the technical and environmental documentation prepared in previous years and a site visit revealed an extremely precari...

The Russian poultry farms produce 10 million tons of litter and litter mass annually. These wastes are not disposed of properly, which leads to significant economic and environmental damage. Dry poultry waste can be used as a valuable fertilizer for seedbed preparation and spring fertilizing of winter crops. One of the major limitations for the direct application of organic waste in the soil is the presence of conditionally pathogenic and pathogenic microorganisms, preserving viability and virulence for a long tim...

Paper deals with important aspects of organization and implementation of transport operations and transport processes between points of origin and points of consumption in order to meet requirements of GS1 standards to fulfill supply chain needs. Requirements for smart transport units are defined from point of view standards and logistic processes. Smart logistic unit is equipped by designed information unit (hardware, software and communication). This information unit processes raw data from logistic or transport...

Zeolites are solids (hydrated aluminosilicate minerals) consist of interlinked tetrahedra of alumina (AlO4) and silica (SiO4). Zeolites are minerals with three-dimensional crystal structure (open crystal structure) built from the elements previously mentioned (Al, Si, O2). They are very stable solid substances with exceptional properties пїЅ they resist of environmental conditions, they resist high pressures, they do not dissolve in water, they do not oxidize in the air. Zeolite structure пїЅ пїЅframework structur...

This article is devoted to the analysis of peculiarities and regularities of traditional nature management systems transformation of the Altai mountain region and characterize the main catalyst factors and modern trends of these changes. The article shows generalized results of long-term researches that employed questionnaire methods (questioning and narrative interview), post-event analysis, geoinformational and cartographical methods. The methods used enabled study of spatial, functional, social and psychologica...

The fast pace at which decisions are made today, demand near-instant visibility for all the assets. In such a demanding environment, the management of a campus that hosts over 4000 students every year, in the most crowded city of Romania, is by all means a challenge. The emerging of the UAV technology provides insight into facility management, assuring asset inventories, spatial context and strategy for further investments and activities. The workflow described in this paper starts with acquiring data in the field...

Ultra clean coal (UCC) contains less than one per cent by weight ash. It is created via chemical leaching, because conventional, physical separating techniques cannot achieve this extremely low mineral content. Potential uses for ultra clean coal, apart from power generation, include for example directly fired into gas turbines пїЅ increasing the efficiency of power generation and eliminating the need for ash dams, production of graphite and carbon fibres, wood charcoal alternative for silicon smelting and others....

Paper presents results of 3D modeling and unconventional hydrocarbon resources assessment completed in regional scale on the area of the Eastern part of Paleozoic Baltic Basin. 3D modeling of structural framework, geochemical and petrophysical parameters was performed for Lower Paleozoic strata using Petrel software. The structural model incorporates 8 structural surfaces, 20 faults and stratigraphic information from 84 wells. The model covers an area of 16800 km2 and is divided into 7 zones (500x500 m grid cell s...

The uncontrolled water flooding in an abandoned open pit mine modifies the rock mass stability, causing rock wall falls and surface erosion that may affect great volumes of material. As regards Sardinia quarries, most of the open pit excavations need a recovery plan. The last mostly depends upon knowledge of the relationship between the geomorphological asset and the nature of weathering and related erosion processes. The aim of this paper is to evaluate the land degradation with a detailed photogrammetric survey ...

The paper presents a description of materials and available data as well as research methods which permitted the development of a complex data base allowing for the analysis of the spatial variability of soil properties in Poland. A data base was developed for the Czermin commune with the application of data on soils available in the State Surveying and Cartographic Resource database. Field and laboratory research were carried out, as well as spatial analyses. They provided the basis for the preparation of a map o...

Biomass as fuel is processed to make it comfortable for use for energy purposes. Solid compacted biofuels are produced based on sawdust wood or clean wood waste. Their quality is dependent on density, moisture content and chemical composition. The aim of the study was to evaluate the usability of selected compacted fuels (briquettes). This assessment was made upon the basis of a developed total quality index. Compacted biofuels are the products which depend on general market laws and their commercial characteristi...

This paper describes possibilities to use numerical models as significant aid in proposal of slope stabilization in Quarry. More accurately the proposal for excavation way of first soil overburden cut, which is mixed up with rock mass, to stabilize the slope. That is real case study which was performed for greywacke quarry situated in Eastern Bohemia. Since 2005 a small instability symptoms are observed on eastern general slope of quarry. Based on this fact the slope stability investigation started in detail one y...

Worldwide, the yogurt is a very popular fermented dairy food and it is known for its health benefits, nutritional value and digestibility. The factors that influence the quality of yogurt are milk composition, dry matter content, the temperature and time at which pre-treatment of the milk is carried out, the type and the quantity of starter culture used, incubation temperature and storage conditions for the final product. A major problem in the production of yogurt is the whey separation. In the yogurt industry, s...

The use of closed water rotation in enterprises processing phosphorus-containing ores requires a long standing circulating water precipitation in the tailings storage. The paper studies possibility of treatment of industrial mineral processing waters from suspended particles and water-soluble impurities adversely affecting the flotation process with the help of reagents-flocculants. The characteristics of the dispersed and liquid phase of industrial waters formed during the processing of non-sulfide ores (for exam...

Recycling - the process of transforming waste into new materials - represent a modern alternative for eliminating waste and reducing emissions of greenhouse gases. Recycling - part of the 3Rs (Reduce, Reuse, Recycle) in the hierarchy of waste пїЅ helps to reduce the consumption of raw materials and to reduce energy consumption, air pollution (in phase of combustion waste) and water (in phase of waste storage). Among the recyclable materials such as glass, paper, plastic, metal, textiles are used tires. These tires...

In this paper we want to highlight the advantages of creating and using forms for collecting data regarding the main changes in an urban environment, including cadastral and utilities data. These forms can be accessed from mobile devices and the reported results are analyzed in a desktop application. The users are able to send their location linked with attribute data. This approach can be used successfully in a working team or can be disseminated for interested community members, as a crowdsource possibility. Cro...

Cyclophosphamide - N,N - bis (2 - chloroethyl) - 1,3,2 пїЅ oxazaphosphinan пїЅ 2 -amine 2-oxide is one of the widely used drugs in cancer treatment, which presents genotoxic, carcinogenic, mutagenic and teratogenic potential. Previously reported studies proved that long time exposure to cyclophosphamide and their metabolites leads to negative effects upon the environment and human health. Therefore, there is a need for more performant treatment processes for cyclophosphamide advanced degradation from which heterog...

Following mining and processing activity, results a significant amount of mining wastes, in the form of sterile mineral. These wastes are stored largely in mining tailing ponds or heaps. The chemical composition of the sterile material depends from one mining site to another. For long time worldwide, tailing deposits were considered waste deposits, without the possibility of future use. A few of the negative effects on the environment my constructing and exploiting mining tailing ponds, heaps, landfills, are the d...

Variable rate application (VRA) of mineral nitrogen fertilizers (NF) represents one of the parts of the new farming practice пїЅ precision agriculture. VRA has been developed to address the spatial variability of fields and vegetation. The objective of this study was to assess the potential effect of VRA of NF on qualitative parameters of grain and grain yield in real farm conditions. Assessment of the potential effect of VAR of NF application was performed in Spearhead Czech Company which has been using VAR techn...

Global Navigation Satellite System (GNSS) receivers are currently the standard equipment for precision positioning, navigation and timing, but their use in difficult environments, such as open mining pits, deep quarries, roads in canyons, is hindered by multipath propagation conditions or interference from adjacent equipment. In this paper, the improvements in signal tracking brought by use of vector tracking loops in GNSS receivers are analyzed. The effects of multipath conditions on tracking errors are diminishe...

Wood based panels are mostly used in the building industry. Using these panels in details of flat roofs is one from their advantages. Problem occurs in the case of increased humidity mainly by leakage or water vapor condensation in the construction which causes degradation of panels. That causes also changes in basic characteristics and reduces the bearing capacity. This work contains utilization of the most used wooden panels. In thesis author evaluates influence of humidity in flat roofs details on creation of m...

As direct consequence of the urban development, waste management is a multidimensional issue that incorporates political, institutional, social, environmental, and economic aspects. The paper aims to analize the efficiency of waste management strategy, implemented in the town of Boto?ani. It is also considering, the populationпїЅs level of education and perception, regarding selective collection and the quality of public Sanitation Services. Boto?ani is a second rank town (the most important in Boto?ani county), l...

GIS Web Applications are very useful when it is needed to highlight important changes in time in a specific area. ArcGIS Online and Portal for ArcGIS include an embedded interactive application for designing and building web applications from a web map. The application works on desktop browsers, tablets, and smart phones without needing a plugin. WebAppBuilder has a lot of customizable themes and widgets that allow to deliver advanced functionality, such as high-quality printing, geoprocessing, editing, and search...

Carrot culture is highly dependent on soil, silty-clay or silty soils with high permeability and free of weeds are preferred. Weed control is a very important part of the production technology for plants. Chemical weed control has been found to have some advantages of which we mention: it is less labor-intensive, increases productivity, reduces the number of passes on farmland and increases production. The main purpose of this paper was to provide the most efficient solution for weeds control in carrot crops, usin...

The urban sprawl has an important impact on the socio-economic evolution of a city as well as on its environment. A defining characteristic of the western European capitalist city, the urban sprawl was not often observed in the urban areas of the Eastern Europe. However, it has become more and more relevant after the 90s because the transition to the post-socialist era determined an increasing development of the sub-urban areas of the cities from the ex-communist bloc. This paper studies the case of the post-socia...

The results of experimental research of hydration process of highly dispersed systems based on saponit-containing waste, extracted as the solid phase of the recycled water suspension kimberlite ore enrichment process of the diamond industry. Saponitcontaining sludge was dehydrated and subjected to mechanical activation on the planetary ball mill. Mechanical activation of raw material more than 60 minutes does not increase the specific surface area of samples was found. Specific surface area is achieves the maximum...

X-ray absorption near-edge (XANES) spectroscopy is an effective modern tool that can provide unique information on local atomic structure (bond lengths and bond angles) of geological materials. To extract such information with high precision from experimental XANES spectra, advanced theoretical analysis based on supercomputer modeling is needed. XANES spectroscopy and computer modeling have been applied to investigate local atomic structure of some terrestrial and extraterrestrials geological materials. XANES iden...

Egg yolk pigmentation is one of major quality attribute linked to consumer requirements concerning eggs. The colour of the egg yolk is a dietary response, depending on the levels of carotenoids present in the feed. The purpose of the present study was to investigate the effects of feed supplementation with dried tomato waste in commercial laying hens on egg production, egg quality, egg yolk colour and carotenoid composition. The hens were fed the basal diet (BD) and the diet supplemented with 7,5% dried tomato was...