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The Study of the Natural Characteristics of the Basin as a Function of Forecasting Erosion and Deposition Processes on the Example of the Selected Basin

Author(s): Đorđe Nikolić,Milena Nikolić,Jugoslav Nikolić / Language(s): English Issue: 2/2012

For an integral perception of the possibility of forecasting erosion-deposition processes and their consequences it is essential to analyze the factors of erosion and deposition. The attempt was made in the paper to analyze quantitative and qualitative impact of some of the most important factors of erosion-deposition processes. The analysis was performed through a multidisciplinary approach, on the example of the Zapadna Morava River upper basin. The methodology of research encompasses an application of the adequate knowledge from the areas of meteorology, geomorphology, hydrogeology, spatial planning, economic geography, forestry, hydrology and environmental protection. The analysis encompasses meteorological factors, terrain characteristics and anthropogenic factors. The importance of the analysis and forecasts of the investigated processes for the industry, economy, spatial planning and environmental protection was emphasized.

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Volcanism Of Hot Spots On The Réunion As The Example

Author(s): Aleksandar Valjarević,Danica Srećković-Batoćanin,Dragan Radovanović / Language(s): English Issue: 3/2016

Réunion (French.: La Réunion, formerly: Īle Bourbon) is beside the Mauritius the largest and the youngest island on the Mascarene Plateau in the Indian Ocean. The island is of volcanic origin, formed through volcanic activity initiated by deeply settled “hot spot” inside the Earth’s mantle. It was formed within the last 2,000,000 years from lava effusions whose volume is up to now nearly 75,000 km3 . Only 3% of its volume is emergent and the total height from the sea floor is 6,500 m. The island is about 40 km in width with about 800,000 inhabitants. The capital city is St Denis. The nature of the island is impressive: active volcano, mountains above 3,000 m in height and deep canyon, frequently exceeding 2,000 m in depth. Since 2010, about 40% of its area is announced a National park and a UNESCO World Heritage site.

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Wskaźnik przemian przepuszczalności gruntów słabonośnych

Author(s): Marzena Jaromińska / Language(s): Polish Issue: 2/2015

This paper presents the results of analyses of the tendencies in the changes of organic soil permeability under load. Ten samples of peats and gyttjas from the Warmia and Mazury Province were analyzed. The research methodology was described and the e – log k relationship at five load degrees was analyzed. The results of multi-year research on organic soils conducted at the laboratory of the Chair of Geotechnics and Road Engineering at the Faculty of Geodesy, Geospatial and Civil Engineering of UWM (Olsztyn) were used for the analyses. A large spread in the permeability change index value, depending on the soil type and the load degree, was found as a result of the performed analysis. Such results suggest, apart from measuring errors, a very high effect of the microstructure of organic soils on the filtration coefficient value and thus also on the tendencies in the changes of this parameter in the consolidation process. The precise identification of the dependence of the filtration coefficient k on the void ratio e and knowledge of the tendencies in soil permeability changes with changes in the void ratio or porosity will allow the value of the filtration coefficient k at different settlement values to be predicted. It will also enable the determination of permeability based on the initial soil parameters.

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Monitorowanie przemieszczeń wybranego budynku posadowionego na podłożu ekspansywnym

Author(s): Aleksandra Gorączko,Maria Gadomska,Maciej Kumor / Language(s): Polish Issue: 2/2014

The paper presents the methodology and results of the monitoring of the building, which failed geotechnical reasons. The building is located in Bydgoszcz, and founded into the clays of high expansiveness. Faults in the design of structure and during exploitation led to the activation of the processes of swelling and shrinkage, and consequently the failure state of the structure. After the strengthening of the foundations and repair construction, geotechnical monitoring was conducted, covering, inter alia, systematic measurements of vertical displacements. Monitoring results showed a very slow process of stabilizing movements of the building. This indicates the legitimacy of observation even for several years after the repair of this type of buildings.

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Weryfikacja parametrów podłoża gruntowego z wykorzystaniem analizy wstecznej na przykładzie wiaduktu drogowego

Author(s): Krzysztof Nepelski / Language(s): Polish Issue: 2/2014

The paper presents the analysis of foundation of the road bridge. The numerical calculation of the bridge abutment was made in FEM Software with subsoil modelled as solid defined by Cam Clay model. Number of calculations was made by using variable parameters of soil. Results were compared with geodetic measurements. Soil properties designated by lab test and geological boreholes, were verified with computer back analysis results.

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Analiza numeryczna mostu gruntowo-stalowego

Author(s): Damian Bęben,Michał Wrzeciono / Language(s): Polish Issue: 2/2014

The paper presents a numerical analysis of the soil-steel bridge in the scope of static loads. The Abaqus program based on the FEM was used to calculations. Maximum displacements were obtained in the shell crown, and the largest stresses in the haunches. Calculation results were compared with the experimental ones and previous calculations obtained from the Robot Millenium program. The shapes of calculated displacements and stresses are similar to those obtained with the experiment, but the absolute values were generally higher than measured ones. Using both calculation programs, the relative reductions of displacement were in the range of 15–39%, and 17–44% for stresses in favour of the Abaqus program. Developed calculation model of the soil-steel bridge in the Abaqus program allows to obtain reasonable values of internal forces in the shell structure.

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Analiza numeryczna i doświadczalna propagacji pola elektromagnetycznego w badaniach metodą georadarową

Author(s): Magdalena Rucka,Jacek Lachowicz / Language(s): Polish Issue: 2/2014

This paper presents experimental tests by using the GPR method and numerical analysis of electromagnetic field propagation. The object of the experimental research was a ground floor structure. An antenna of frequency of emitted waves equal to 2 GHz was used for measurements. The paper also describes the numerical modelling of electromagnetic field with the use of the finite difference time domain method. Results of propagation of electromagnetic waves in a one-dimensional reinforced concrete specimen were presented.

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Ocena efektywności preparatów na bazie kwasu ortokrzemowego do wzmacniania zabytkowych zapraw sztukatorskich typu lubelskiego

Author(s): Danuta Barnat-Hunek,Beata Klimek / Language(s): Polish Issue: 4/2013

At the beginning of XVII-th Century in Little Poland region, flat, geometric decorations were common. Their came from North Germany and appeared in individual types, characteristic for particular regions. Typical variants of decorations were described by J. Szablowski with underlined net (typical for Lublin region), ferrule and geometrical decorations (typical for Cracow region). Cracovian-type decoration resembled West-European decorations and Lublin-Calisia-type were made by local bricklayers, which is hard to be proven, because of the foreign prototypes visible in many Lublin decorations. Article presents valuation of the silicon based preparations application possibility for strengthening Lublin-type mouldings. Valuated preparations differ in compounds. They are applied for conservatory works to strengthen such materials like calcium plasters and mouldings.

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Dobór zestawu maszyn do robót ziemnych w aspekcie minimalizacji emisyjności CO2

Author(s): Magdalena Rogalska / Language(s): Polish Issue: 4/2013

The aim of the calculation is to allow the selection of a set of earthmoving machinery in terms of minimizing the emission of CO2. The capacity of excavators and CO2 emission of set of machines was predicted. The forecasting methods: multiple regression and neural networks were used. The analysis of autocorrelation and partial autocorrelation residuals and sensitivity analysis were performed. The MAPE errors of forecasts were calculated. The calculation example in terms of selection of machines emission of carbon dioxide on the basis of forecasting models was performed.

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Wykorzystanie gruntów rodzimych do budowy dróg lokalnych na terenach wiejskich

Author(s): Michał Ćwiąkała,Andrzej Greinert,Joanna Korzeniowska,Paweł Tarasewicz / Language(s): Polish Issue: 3/2013

Virgin soils as a result of geotechnical processes are element of road’s solid bottom. The bottom ought to have enough capacity and durability which is provided by proper virgin sub-grade’s enhancement. The sub-grade is road’s base course right bottom. It is possible to improve virgin soil’s parameters by road’s hydraulic binding agent. The agent is a mineral frame’s micro-particle extender or enhancement. The researches were focused to define main soil-cement compound’s mechanical parameter called CBR. Compounds consisted of rural virgin soils (five grain-size types) and two hydraulic agent types (endurance rates 3 MPa and 9 MPa). Hydraulic agent’s main component was activated fly ash and white cement (CEM I 42,5 MPa). The ash is from Pątnów Power Plant and is a result of brown coal burning. The researches answered that it is possible to exploit virgin soils in rural service road’s construction thanks to innovative road cements with binding qualities.

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An Overview of Geoprocessing and Export Options for Creating 3D GIS Models Using Drone2Map

Author(s): Ana Cornelia Badea,Gheorghe Badea / Language(s): English Issue: 28/2020

In this article the main topic of interest is to explore the processing possibilities offered by the latest version of Drone2Map. At the same time, we want to highlight the ways of sharing the 2D and 3D products obtained, but also the means of their subsequent analysis in the established GIS environment. One of the major advantages identified is primarily the interoperability of Drone2Map - ArcGIS Online – ArcGIS Pro.

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On the Generalization Algorithms Applied in GIS Environment

Author(s): Gheorghe Badea,Ana Cornelia Badea / Language(s): English Issue: 28/2020

Generalization in GIS is a very complex and important aspect, and the evolution of GIS technology has led to the creation of tools based on complex algorithms, which greatly facilitate the work of specialists. GIS software capabilities thus include spatial transformations that change geometric data and topological representation. Data processing by generalization refers to raster data and vector data. The article focus is on presenting and comparing the usability of four simplification algorithms (Douglas-Peucker (DP), Wang-Müller(WM), Zhou-Jones (ZJ), Visvalingam-Whyatt(VW)), applied for some examples on polygon layers, to emphasize the changes due to generalization.

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The Predicting of the Average Temperatures Evolution from Romania and the Resuts Visualisation with the Geographical Information Systems

Author(s): Codruț-George Benedic,Iohan NEUNER / Language(s): English Issue: 28/2020

In this article we have tried to present some significant aspects regarding the evolution of average temperatures in Romania. For the study, the statistical data provided by the National Meteorological Administration were used. Finally, it was presented the way of temperatures evolution, through suggestive maps, made using GIS applications.

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Improving Semantic Modeling with the Help of Augmented Reality

Author(s): Daniela-Paula Safta,Iohan NEUNER / Language(s): English Issue: 28/2020

A semantic modeling makes it possible to add, in addition to geometric data, as much information about architectural elements.In order to create a semantic modeling that has a unitary structure for all geometrically modeled buildings, regardless of who makes this model, it was proposed in this article to create an application based on augmented reality to help semantic modeling of historical buildings on the architectural side. This application will be the basis of semantic annotations in the field of architecture.When several important buildings have been modeled using the same unitary structure, they can be represented in a semantic Web.

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The Use of Several Types of Geometric Modeling to Create the Model of a Historical Building

Author(s): Daniela-Paula Safta,Iohan NEUNER / Language(s): English Issue: 28/2020

A geometric model is a mathematical representation of the geometry of an object or a building as a whole, using geometric shapes, which are described by surfaces, which in turn are described by curves and so on. Data such as the geometry, the topology and other speciﬁc data have to be represented by the model.Many computer-aided design systems use parametric polynomial representation for free-form curve and surface modeling.In this article we will present a brief description of the existing types of geometric modeling, as well as a comparison of them.

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Brief History of the Height Reference Systems Used along the Romanian Sector of the Danube River

Author(s): Elena-Andreea Savu / Language(s): English Issue: 28/2020

Both geodetic engineers and specialists in the fields such as Hydrology, Hydrotechnics or Geography have faced countless times the problem of using multiple height reference systems on the territory of our country. Over the years, several "zero" points or fundamental points have been used in Romania: "zero" Black Sea Sulina, "zero" Adriatic Sea or "zero" Baltic Sea (most often used). Regarding the Romanian sector of the Danube River, all bathymetric navigation maps use Sulina as a fundamental “zero” point. Unfortunately, the (absolute) heights of the gauges “zero” installed along the Danube River differ from each other depending on the reference surface from which these heights are measured. For this reason, the water level determinations cannot be performed in the same height reference system. In practice, the transformations between different vertical datums used along the river are still a real challenge. This paper supports those who want to understand the history of using the main height reference systems on the Romanian sector of the Danube River and, moreover, represents a review of the relationships between them. Although they were determined long ago, some of them have been transposed into the GIS format to facilitate the height transformations.

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Digitalization of the National Agency for Cadastre and Real Estate Advertising Services through E-Terra and E-Pay Applications in the Context of the COVID Pandemic 19

Author(s): George Emanuel Voicu,Florina Voicu,Ioan Voina / Language(s): English Issue: 28/2020

The accelerated pace of technological changes, which have irreparably changed the communication area and the business area, is so advanced that we can already discuss a post-digital age. According to research conducted by International Data Corporation, $ 1.25 trillion was spent globally in 2019 for digital transformations, the number rapidly increasing to $ 1.97 trillion by 2022, when over 60% of global Gross Domestic Product it will be digitized, generating growth in every area where offerings, operations and relationships are digitally improved.

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Pomiary parametrów przepływów dwuwymiarowych wokół modeli o przekrojach czworokątnych ustawionych na podłożu

Author(s): Ewa Błazik-Borowa,Jarosław Bęc,Tomasz Nowicki,Tomasz Lipecki,Jacek Szulej / Language(s): Polish Issue: 2/2008

Measurements of 2-D flows around a square and a rectangle (ratio 2:1) in wind tunnel have been presented in this paper. The results of these measurements presented here are pressure and standard deviation distributions on the models’ walls, components of velocity vectors and statistical moments for fluctuations of velocity in the wind tunnel measuring space. The values of parameters have been presented in graphs and subsequently used in a comparative analysis of the flows around both models.

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Pomiary wilgotności murów z kazimierskiej opoki wapnistej przy zastosowaniu metody TDR

Author(s): Zbigniew Suchorab,Danuta Barnat-Hunek,Henryk Sobczuk / Language(s): Polish Issue: 1/2008

The article presents monitoring measurements of the physical parameters and mineralogical-petrographical composition analysis of the chalk rock from the Kazimierz Dolny region. The experiments involve the reflectometric techniques TDR (Time Domain Reflectometry) as a perspective alternative in moisture determinations. The investigation domain was the stone from the Castle of Janowiec by the Vistula river, which walls indicate the progressive corrosion depending on external exposition and age. Other object of investigations was the stone from quarry in Kazimierz Dolny. Porosimetric examinations of the chalk rock from the southern and northern elevation of the castle indicate differences in structure changes of the stones. These differences influence different behaviour of the chalk rock during capillary rise of water and salt solutions. It is connected with the suitable matching of the conservation protection, wall protecting preparations which kind and application depend on porosimetric parameters of the material. The TDR method is applied as a good alternative of water transport measurement in porous building materials and other water parameters characterisig described material.

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SUSTAINABLE DEVELOPMENT – AN ARTIFICIAL INTELLIGENCE APPROACH

Author(s): Kristina DUVNJAK,Maja Gregorić,Mateja GORŠE / Language(s): English Issue: 4/2020

In mid 20s Carson (1963) raised the question of environmental issues in economics as one that should be discussed by practitioners and researchers. From that point, the environmental issues from the analysis of exhaustible and productive resources to its economic role and consequentially its impact, were examined. Environment affects must be considered as human activity-based processes which repercussions effect economy in general. Thus, the long-term decision-making processes in economy must take into account future generations as well. Furthermore, tourism as an economic activity is growing rapidly and one must take into consideration, that it is based on, primarily, natural environment and man-made resources. Degradation of basic tourism resources can lead to decrease of tourism demand. Therefore, the analysis of environmental impact on tourism, and vice versa, the impact of tourism on environment is crucial. With the development of information technology sector, new and innovative methods for analysis and forecasting have emerged such as artificial intelligence. The main hypothesis of this paper is to research how artificial intelligence can contribute to analysis and investigating environmental aspect of tourism. Therefore, the paper provides a theoretical overview of possible fields of artificial intelligence usage in sustainability, in the context of tourism development.

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