scholarly journals GEODESY, CARTOGRAPHY, AND AERIAL PHOTOGRAPHY

2021 ◽  
Vol 93,2021 (93) ◽  
pp. 72-84
Author(s):  
Mykhailo Protsyk ◽  
◽  
Borys Chetverikov ◽  
Andrii Ivanevych ◽  
◽  
...  

Aim of the work. To develop a method of automated allocation of catchment basins and obtaining their hydrological and morphometric characteristics, which is based on digital terrain models. Methods and results of work. A necessary condition for the correct filling of the terrain is the presence of points of true flow at the edge of the settlement area (if the river flows into the lake, it should not enter the calculated area completely, otherwise incorrect results will be obtained). By performing the operation of filling the relief of the terrain, a new dem is created, which does not contain fictitious depressions and is used in the next step as input data to calculate the flow direction according to the algorithm d8. According to the proposed technological scheme it is necessary to process step by step the following six blocks: filling of closed depressions, calculation of runoff direction, calculation of total runoff, creation of point vector data set of closing points (mouth points), creation of watershed boundaries, raster-vector data conversion. Theoretical research tested the method of automated allocation of watersheds, namely the determination of hydrological and morphometric parameters of the terrain. The pools were ranked according to these parameters according to the existing classifications, a series of relevant thematic electronic maps was compiled. It should be noted that in Skole district of lviv region there are 590 catchment areas, and their area is 1407 km2. Watersheds are classified by outcrop, namely low-mountain basins in the region of 6, their area is 7 km2, medium-mountain 360, area 755 km2, high-mountain 224, area 645 km2. Pools are classified according to the average slope: the first category from 0-3 degrees, very gentle slopes - pools 27, area 7 km2; the second category from 9-12 degrees, sloping slopes-pools of 128, the area 303 km2; the third category from 12-15> degrees, steep slopes - pools of 225, the area 648 km2. The accuracy between the reference and the original relief model was evaluated. We can say that sle = 0.63 (m) slope, sle = 5.43 (m) height. Scientific novelty and practical significance. The technological scheme of automated separation of catchment basins according to digital relief models for Skoliv district of lviv region is proposed and the method of separation of catchment basins is worked out. According to the developed method, maps of watercourses of different orders and their catchment basins and classification of basins by area on the territory of Skole administrative district, which can be used by local organizations on water resources, are constructed.

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ying Zhang ◽  
Yuran Li ◽  
Mark Frost ◽  
Shiyu Rong ◽  
Rong Jiang ◽  
...  

PurposeThis paper aims to examine the critical role played by cultural flow in fostering successful expatriate cross-border transitions.Design/methodology/approachThe authors develop and test a model on the interplay among cultural intelligence, organizational position level, cultural flow direction and expatriate adaptation, using a data set of 387 expatriate on cross-border transitions along the Belt & Road area.FindingsThe authors find that both organizational position level and cultural flow moderate the relationship between cultural intelligence and expatriate adaptation, whereby the relationship is contingent on the interaction of organizational position status and assignment directions between high power distance and low power distance host environments.Originality/valuePrevious research has shown that higher levels of cultural intelligence are positively related to better expatriate adaptation. However, there is a lack of research on the effect of position difference and cultural flow on such relationship. Our study is among the first to examine how the interaction between cultural flow and organizational position level influences the cultural intelligence (CI) and cultural adjustment relationship in cross-cultural transitions.


Increase of production efficiency through generalization of design practices of integrated product quality management of the industry is a necessary condition for sustainable development of domestic production. The purpose of the study is to assess the existing system of quality management of the enterprise on the example of a separate business unit and identify directions to increase its effectiveness. Object of study — Production Association of Software (Polished Glass) JSC AGС “Borsky Glass Factory”. The subject of study is an integrated quality management system. Research methods — method of economic analysis, and method of expert assessments. A practical significance of the work lies in the possibility of using the results to control non-conforming products in the process of industrial production. These studies allow to draw conclusions about the effectiveness of the technology used for product quality management and production processes of the industry enterprise on the example of a separate production.


2020 ◽  
Vol 7 (5(74)) ◽  
pp. 15-20
Author(s):  
N. K. Dzhumagazieva

The article discusses the features of the genres of environmental journalism in the aspect of the global problems of understanding the interaction of man and nature. In the modern period of the development of multimedia technologies and convergent journalism, journalism genres are experiencing “reboots”, therefore, the definition of genre identity and the further implementation of such an important topic as ecology in journalistic materials seems relevant.Journalism is constantly transforming, reflecting changes in society. Understanding her contemporary experience is one of the tasks of the methodology of the creative process. Journalism synthesizes theoretical research methods and ways of artistic reflection of reality. This synthesis process is especially evident in the way typification and individualization are carried out in society in terms of the development of environmental consciousness. In this regard, journalism and journalism are able to establish and develop environmental communication, the basis of which is the real relationship between man and nature, as well as the reflection of social reality, public opinion on informational issues related to environmental (environmental) issues.The journalism activism of Kyrgyzstan has a large-scale experience of reflecting environmental issues, which is associated with a value and cultural orientation, the foundations of which are laid in the socio-cultural traditions of the Kyrgyz people and are most vividly embodied in the work of the great Chingiz Aitmatov. This article attempts to typify the main genres and forms of journalism, reflecting environmental issues. The study allows us to conclude that at the present stage, definitions of journalism genres require transformation in the aspect of both purely national and general cultural issues. The practical significance lies in the inclusion in the list of basic disciplines of journalism faculties of the special course "Genres of Contemporary Environmental Journalism", which will make the learning process more substantive, relevant and relevant in the practice of modern media


2021 ◽  
Vol 0 (13) ◽  
pp. 31-37
Author(s):  
Ekaterina Kot ◽  
Tat'yana Zyryanova ◽  
Sergey Zyryanov

Abstract. Within the framework of a set of measures for the implementation of the national project on small and medium-sized enterprises and support for individual entrepreneurial initiative in accordance with the Decree of the President of the Russian Federation on national goals and strategic development tasks, the importance of involving citizens in independent production activities is reflected. In this regard, Federal Law No. 422-FL of 27 November 2018 (hereinafter referred to as the Law) initiated a tax experiment to establish a new special tax regime “Tax on Professional Income” (hereinafter referred to as the TPI). The purpose of the study is to determine the economic impact of the new tool on the involvement in economic turnover of such a form of self-employment in rural areas as personal subsidiary farms of citizens. Tasks: 1) using the deductive method of theoretical research to analyze the effect of the experiment on the application of the new special tax regime on the territory of Russia; 2) to consider in practical situations the options for applying the TPI for self-employed citizens; 3) systematize data on the calculation of naps in the form of a model that has theoretical and practical significance for the involvement of private subsidiary farms (hereinafter referred to as PSF) in an organized market. Research methods: deduction, axiomatic, analysis, synthesis, comparison, experiment, measurement. The scientific novelty and results is that according to the Law, a new target group is allocated – self-employed citizens who indicate services in different fields of activity. In agriculture, it is also necessary to direct the activities of PSF that sell their own products to an organized market. Results. In order to help improve financial literacy with the support of self-employed entrepreneurs, a comparative analysis of deductions for the calculation of professional income tax was conducted. Algorithms for calculating naps have been developed, which are the basis for considering practical situations. A model has been compiled that systematizes the procedure for applying the TPI for self-employed citizens.


Hydrology ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 69 ◽  
Author(s):  
Eatemad Keshta ◽  
Mohamed A. Gad ◽  
Doaa Amin

This study develops a response-based hydrologic model for long-term (continuous) rainfall-runoff simulations over the catchment areas of big rivers. The model overcomes the typical difficulties in estimating infiltration and evapotranspiration parameters using a modified version of the Soil Conservation Service curve number SCS-CN method. In addition, the model simulates the surface and groundwater hydrograph components using the response unit-hydrograph approach instead of using a linear reservoir routing approach for routing surface and groundwater to the basin outlet. The unit-responses are Geographic Information Systems (GIS)-pre-calculated on a semi-distributed short-term basis and applied in the simulation in every time step. The unit responses are based on the time-area technique that can better simulate the real routing behavior of the basin. The model is less sensitive to groundwater infiltration parameters since groundwater is actually controlled by the surface component and not the opposite. For that reason, the model is called the SCHydro model (Surface Controlled Hydrologic model). The model is tested on the upper Blue Nile catchment area using 28 years daily river flow data set for calibration and validation. The results show that SCHydro model can simulate the long-term transforming behavior of the upper Blue Nile basin. Our initial assessment of the model indicates that the model is a promising tool for long-term river flow simulations, especially for long-term forecasting purposes due to its stability in performing the water balance.


2012 ◽  
Vol 263-266 ◽  
pp. 2999-3004 ◽  
Author(s):  
Ying Chen ◽  
Lei Zhang ◽  
Xiao Juan Ji

Because less data can be hidden on the small vector data set , its copyright is very difficult to obtain protection, and the data is vulnerable to attack, so a new double watermarking algorithm was proposed in this paper. Its main features are: 1) it selected feature points from the sequence of Douglas, then embedded watermarking points on both sides of the feature point, and last embedded watermarking points by wavelet transform again; 2) Further more it increased the map graphic deformation control design. The algorithm was applied to experimental data, and the test results showed that the algorithm had good robustness on graphics, rotation, scaling and shifting geometric transformation of points in graph layers. However, due to the smaller vector data set, so the algorithm is robustness on deletion and cropping of points in graph layers.


2017 ◽  
Vol 14 (21) ◽  
pp. 5003-5014 ◽  
Author(s):  
Katrin Magin ◽  
Celia Somlai-Haase ◽  
Ralf B. Schäfer ◽  
Andreas Lorke

Abstract. Inland waters play an important role in regional to global-scale carbon cycling by transporting, processing and emitting substantial amounts of carbon, which originate mainly from their catchments. In this study, we analyzed the relationship between terrestrial net primary production (NPP) and the rate at which carbon is exported from the catchments in a temperate stream network. The analysis included more than 200 catchment areas in southwest Germany, ranging in size from 0.8 to 889 km2 for which CO2 evasion from stream surfaces and downstream transport with stream discharge were estimated from water quality monitoring data, while NPP in the catchments was obtained from a global data set based on remote sensing. We found that on average 13.9 g C m−2 yr−1 (corresponding to 2.7 % of terrestrial NPP) are exported from the catchments by streams and rivers, in which both CO2 evasion and downstream transport contributed about equally to this flux. The average carbon fluxes in the catchments of the study area resembled global and large-scale zonal mean values in many respects, including NPP, stream evasion and the carbon export per catchment area in the fluvial network. A review of existing studies on aquatic–terrestrial coupling in the carbon cycle suggests that the carbon export per catchment area varies in a relatively narrow range, despite a broad range of different spatial scales and hydrological characteristics of the study regions.


2012 ◽  
Vol 5 (1) ◽  
pp. 121-137
Author(s):  
I. W. M. Pothof ◽  
E. J. M. Blokker

Abstract. Sedimentation in drinking water networks can lead to discolouration complaints. A sufficient criterion to prevent sedimentation in drinking water networks is a daily maximum velocity of 0.25 m s−1. Flushing experiments have shown that this criterion is a sufficient condition for a clean network, but not a necessary condition. Drinking water networks include many locations with a maximum velocity well below 0.25 m s−1 without sediment. Other criteria need to be developed to predict which locations are susceptible to sedimentation and to prevent sedimentation in future networks. More distinctive criteria are helpful to prioritise flushing operations and to prevent water quality complaints. The authors use three different numerical modelling approaches – quasi-steady, rigid column and water hammer – with a temporal discretisation of 1 s in order to assess the influence of unsteady flows on the wall shear stress, causing resuspension of sediment particles. The model predictions are combined with results from flushing experiments in the drinking water distribution system of Purmerend, the Netherlands. The waterhammer model does not result in essentially different flow distribution patterns, compared to the rigid column and quasi-steady modelling approach. The extra information from the waterhammer model is a velocity oscillation of approximately 0.02 m s−1 around the quasi-steady solution. The presence of stagnation zones and multiple flow direction reversals seem to be interesting new parameters to predict sediment accumulation, which are consistent with the observed turbidity data and theoretical considerations on critical shear stresses.


2020 ◽  
Author(s):  
Robert L. Peach ◽  
Alexis Arnaudon ◽  
Julia A. Schmidt ◽  
Henry A. Palasciano ◽  
Nathan R. Bernier ◽  
...  

AbstractNetworks are widely used as mathematical models of complex systems across many scientific disciplines, not only in biology and medicine but also in the social sciences, physics, computing and engineering. Decades of work have produced a vast corpus of research characterising the topological, combinatorial, statistical and spectral properties of graphs. Each graph property can be thought of as a feature that captures important (and some times overlapping) characteristics of a network. In the analysis of real-world graphs, it is crucial to integrate systematically a large number of diverse graph features in order to characterise and classify networks, as well as to aid network-based scientific discovery. In this paper, we introduce HCGA, a framework for highly comparative analysis of graph data sets that computes several thousands of graph features from any given network. HCGA also offers a suite of statistical learning and data analysis tools for automated identification and selection of important and interpretable features underpinning the characterisation of graph data sets. We show that HCGA outperforms other methodologies on supervised classification tasks on benchmark data sets whilst retaining the interpretability of network features. We also illustrate how HCGA can be used for network-based discovery through two examples where data is naturally represented as graphs: the clustering of a data set of images of neuronal morphologies, and a regression problem to predict charge transfer in organic semiconductors based on their structure. HCGA is an open platform that can be expanded to include further graph properties and statistical learning tools to allow researchers to leverage the wide breadth of graph-theoretical research to quantitatively analyse and draw insights from network data.


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