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Journal articles on the topic 'Graphe massifs'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Beltek, M., and O. Frolov. "Determination of the influence of the degree of fracturing of the rock mass on the index of reduction of its strength." Collection of Research Papers of the National Mining University 74 (September 2023): 7–18. http://dx.doi.org/10.33271/crpnmu/74.007.

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Purpose. The purpose of research of the presented scientific publication is to establish the regularity of changes in the generalized coefficient of strength reduction of disturbed rock massif depending on the degree of rock fracturing. Research methodology. To solve the set tasks we applied a complex approach, which consists in the analysis and generalization of previous studies on the study of the change in the strength of the rock massif depending on the degree of fracturing, scientific and technical justification of the possibility of generalizing the studied strength indicators of the dis

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Dmitrienko, Vladimir, Nadejda Dmitrienko, and Аleksandr Bogomazov. "Impact of “wet conservation” of mining enterprises on constructing buildings of lightweight materials." E3S Web of Conferences 284 (2021): 05013. http://dx.doi.org/10.1051/e3sconf/202128405013.

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The analysis of the influence of flooding of the developed areas of closed mining enterprises on the mechanical characteristics of clay rocks is given. The deformation characteristics of clay shale under prolonged moistening conditions have been experimentally established and proved. Simulation of stress-strain state of soil massifs and building structures by method of finite elements is considered and the influence of power of developed spaces on settlement of building foundations of buildings of light materials is established. The distribution of vertical displacements in the rock massif is

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Manatskov, A. G., E. V. Lopatkina, and G. V. Zimin. "Influence of the terroirs of the Nizhnekundryuchenskiy sandy massif on the development features of the autochthonous Don grape variety Sibirkovyi." Fruit growing and viticulture of South Russia 2, no. 92 (2025): 59–66. https://doi.org/10.30679/2219-5335-2025-2-92-59-66.

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Abstract. Currently, a large number of grape plantations are being laid on the territory of the Rostov region (104 hectares of new plantations were planted in 2024). This creates a need to increase the area of vineyards, due to the lands that are underutilized in agricultural production. In this regard, it is of interest to use sand massifs, which represent extensive areas that are practically not used in agriculture. Growing grapes on sandy soils has both advantages and disadvantages. This article discusses the peculiarities of the cultivation of the autochthonous Don grape variety Sibirkovyi

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4

Dongak, Dzhamil Aiyr-Sanaaevich, Artysh Valerievich Mongush, Chinchi Buyanovna Mongush, and Shydar Orlanovich Chuldum. "A distance study of seasonal dynamics of the vegetation index (NVDI) of the Mongun-Taiga massif vegetation cover." Samara Journal of Science 11, no. 4 (2022): 22–29. http://dx.doi.org/10.55355/snv2022114103.

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This paper analyzes seasonal dynamics of the Mongun-Taiga massif vegetation cover from February to October 2022 based on the application of the NDVI vegetation index using Sentinel-2 satellite imagery data. To analyze the seasonal dynamics of the vegetation index of the Mongun-Taiga massif, 15 points on the valleys of five rivers were selected they are the Tolaity River (south side), the Holash River (west side), the Balyktyg River (north side), the Right-Mugur River (north-east side) and the Shara-Khoragai river (east side). The graphs of the vegetation cover of different exposures of the mas

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Kuzmenko, Eduard, Sergiy Bagriy, Inna Artym, and Volodymyr Artym. "GEODYNAMICS." GEODYNAMICS 2(33)2022, no. 2(33) (2022): 64–74. http://dx.doi.org/10.23939/jgd2022.02.065.

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The purpose of the research is to substantiate the theoretical prerequisites for the interpretation of the geophysical method of the Earth's natural pulsed electromagnetic field (ENPEMF). The justification will be performed by quantifying the stress state of the rock massif, modeling of the obtained analytical dependencies for disturbed massifs. The basis for the interpretation is the coordination of the obtained distributions of intensity with the intensity of the electromagnetic field. The initial data are classical formulas of theoretical mechanics, modified to the conditions of the geologi

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Alkhdour, Ahmad, Anatolii Radkevych, Oleksii Tiutkin, and Nataliia Bondarenko. "Prediction of the stress-strain state of circular workings in a layered massif by scaling." E3S Web of Conferences 168 (2020): 00020. http://dx.doi.org/10.1051/e3sconf/202016800020.

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The scientific and technical task for determining the stress-strain state of mine workings is complicated by the presence of a layered massif. This task assumes particular importance in the case of circular tunneling. During its operation, it is important to predict the change of the stressstrain state for the massif or to carry out the prompt determination in the change of stresses and displacements for the unsupported working. The solution of this geomechanical task allows performing geometrical matching of the working, ensuring its strength and stability in the layered massif. A numerical f

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Vidal, Muriel, Daniel Goujet, Philippe Janvier, and Hubert Lardeux. "Micro-restes de Vertébrés du Calcaire de La Grange, Dévonien inférieur (Emsien) du Sud-Est du Massif Armoricain [Fish remains from the La Grange Limestone, Lower Devonian (Emsian), South-Eastern Armorican Massif." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 194, no. 2-3 (1994): 321–41. http://dx.doi.org/10.1127/njgpa/194/1994/321.

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8

Subbotin, Ignat. "Discrete and continuous models in calculating the bearing capacity of soil massifs reinforced with geosynthetics." Construction and Architecture 8, no. 4 (2020): 28–36. http://dx.doi.org/10.29039/2308-0191-2020-8-4-28-36.

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The article discusses continuous and discrete models of the soil environment on the examples of calculations under the action of a strip load with surcharge on a plane. The options for calculating both slopes and soil base for foundations in natural, artificial and composite environments are considered. A theoretical method for calculating the bearing capacity of a composite medium of a subsoil that is anisotropic in shear resistance is presented. Formulas and graphs of the results of calculating the compared soil conditions are given and their quantitative assessment of strength in comparison

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Atrassi, Fatima E. L., Fabrice Brunet, Mohamed Bouybaouene, Christian Chopin, and Gilles Chazot. "Melting textures and microdiamonds preserved in graphite pseudomorphs from the Beni Bousera peridotite massif, Morocco." European Journal of Mineralogy 23, no. 2 (2011): 157–68. http://dx.doi.org/10.1127/0935-1221/2011/0023-2094.

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10

V. P. KUPRIY, O. L. TIUTKIN, and P. YE. ZAKHARCHENKO. "ANALYSIS OF FEATURES OF APPLIED SOFTWARE “LIRA” IN CALCULATIONS OF NON-CIRCULAR TUNNEL LININGS." Bridges and tunnels: Theory, Research, Practice, no. 12 (May 21, 2019): 41–50. http://dx.doi.org/10.15802/bttrp2017/167404.

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Purpose. The article examines the effect on the stress-strain state of the parameters of the finite-element model created in the “Lira” software package in a numerical analysis of non-circular outlined tunnels. Methodology To achieve this goal, the authors developed finite element models of the calotte part of the mine during the construction of a double track railway tunnel using “Lira” software. In each of the models in the “Lira” software package, the interaction zone with temporary fastening was sampled in a specific way. After creation of models, their numerical analysis with the detailed

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V. P. KUPRIY, O. L. TIUTKIN, and P. YE. ZAKHARCHENKO. "GROUND OF PARAMETERS OF DISCRETISATION AT THE NUMERICAL ANALYSIS OF NON-CIRCULAR OUTLINE TUNNELS." Bridges and tunnels: Theory, Research, Practice, no. 11 (December 10, 2017): 20–29. http://dx.doi.org/10.15802/bttrp2017/158445.

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Purpose. Influence on the strain-stress state of discretization of finite element model in the numerical analysis of non-circular outline tunnels is explored in the article. Methodology. For achievement of the put purpose, authors developed three finite element models of callote part at building of two-line railway tunnel. In each of models in a programmatic complex «Lira» was a concrete method of discretization area of cooperation with the temporal fastening. After creation of models, their numerical analysis with the detailed research of his results was conducted. Findings. The values of def

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Spaeth, Gerhard, Werner Fielitz, and Bernard Frank. "Caledonian Deformation and Very Low-Grade Metamorphism in the Northeastern Part of the Stavelot-Venn Massif." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 171, no. 1-3 (1985): 297–310. http://dx.doi.org/10.1127/njgpa/171/1985/297.

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13

Sizov, Dmitrii, and Elvira Egereva. "Calculation of the wave field in a layered soil foundation using the grid method." E3S Web of Conferences 515 (2024): 02001. http://dx.doi.org/10.1051/e3sconf/202451502001.

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The article contains a solution to the problem of propagation of waves in a soil massif arising from the movement of subway trains. This problem often arises when predicting vibration levels in buildings located near metro lines. The problem is considered in a two-dimensional formulation, taking into account the actual location of soil layers with different physical and mechanical properties. The soil is modeled using the assumption of its linear deformability, which, to a first approximation, is acceptable due to small vibration displacements. To solve the problem, the finite difference metho

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Sidorov, V. V., A. Z. Ter-Martirosyan, and A. S. Almakaeva. "Determination of application limits of graph-analytical method of a single pile settlement calculation." Zhilishchnoe Stroitel stvo, no. 11 (December 11, 2024): 47–54. https://doi.org/10.31659/0044-4472-2024-11-47-54.

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The limits of application of the graph-analytical method for calculating the settlement of a single pile in a single-layer soil massif depending on the length and diameter of the pile are investigated. The graph-analytical method makes it possible to take into account non-linear work of the soil on the whole surface of the pile, exclusion from further work of the soil area along the lateral surface of the pile, where the ultimate strength of the soil was reached, mechanism of load distribution on the pile and friction reduction at the contact “pile–soil”. A comparative analysis of the results

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15

Nunes, João Paulo Avelãs. "The First World War, the emergence of the masses and the (in)adaptation of political systems." Revista Portuguesa de História, no. 45 (2014): 39–52. http://dx.doi.org/10.14195/0870-4147_45_2.

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16

Boyko, Igor, Liudmyla Skochko, and Maksym Khoronzhevskyi. "Identification of soil parameters based on the results of field tests of piles." Bases and Foundations, no. 42 (June 24, 2021): 9–18. http://dx.doi.org/10.32347/0475-1132.42.2021.9-18.

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The work is devoted to the peculiarities of pile works in the soil under the action of static load. The data obtained from the results of in situ tests piles during the construction of a high-rise building were used for research. The calculations were performed by numerical modeling with using different models of soil environment and problem statements.  To increase the convergence of numerical modeling results with in situ tests, the parameters of engineering geological elements were identified. Several variants of the methods of modeling the calculation scheme of systems "pile-so

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17

Ter-Martirosyan, Zaven G., Armen Z. Ter-Martirosyan, and Yuliya V. Vanina. "Long-term settlement and bearing capacity of foundations adjacent to vertical excavation at various parameters of soil viscosity." Vestnik MGSU, no. 12 (December 2022): 1664–76. http://dx.doi.org/10.22227/1997-0935.2022.12.1664-1676.

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Introduction. When the underground part of a high-rise building interacts with the surrounding soil massif behind the excavation pit, a complex heterogeneous stress-strain state occurs, transforming in space and time — during construction and during the exploitation of the building. Special issues arise when the soil massif is heterogeneous and has rheological properties, and an additional load acts near the pit excavation at the same time.  Materials and methods. For the problem of the stress strain statement of soil with a weight behind the enclosure of a pit with a depth h, taki

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18

Corvol, Andrée. "Le legs de monsieur Colbert." L'Histoire N° 503, no. 1 (2023): 34–43. http://dx.doi.org/10.3917/histo.503.0034.

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Forêt Terme probablement issu du latin silva forestis (dérivé de forum , « cour de justice »), qui désigne une forêt « relevant de la cour de justice du roi ». « Forêt » a éliminé l’ancien français selve du latin silva , qui subsiste dans la terminologie technique. La graphie actuelle n’apparaît qu’au xvii e siècle pour désigner une grande étendue couverte d’arbres. Grande comment ? A partir de quelle surface un bois devient-il une forêt ? La limite reste floue. Forêts domaniales Ce sont les forêts royales. Les massifs domaniaux représentent en 1661 environ 1/10e des forêts du royaume. Les aut

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19

Rebrov, Anton Nikolaevich, Ekaterina Viktorovna Lopatkina, and Maria Viktorovna Fatakhetdinova. "DEVELOPMENT OF BASIC GRAPE PLANTS IN CONDITIONS OF HETEROGENEITY OF THE SOIL COVER OF NIZHNEKUNDRYUCHENSKY SANDY MASSIF." Fruit growing and viticulture of South Russia 1, no. 79 (2023): 154–70. http://dx.doi.org/10.30679/2219-5335-2023-1-79-154-170.

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20

Serhiienko, Alexander, Iaroslav Liashok, Liana Serhiienko, Serhii Podkopaiev, and Olha Kohtieva. "PREDICTION OF THE PARAMETERS OF THE CAVE-IN ROCK FORMATION IN ROOF OF THE LONGWALL OF COAL MINES." Journal of Donetsk Mining Institute 51, no. 2 (2022): 108–21. http://dx.doi.org/10.31474/1999-981x-2022-2-108-121.

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Purpose. Process research of the parameters of the cave-in rock formation in roof of the 9th northern longwall of block #10 “Mines Control Pokrovske” Method. Numerical modeling of the volumetric stress-strain state (finite element method), the method of continuous media, the method of contact interaction of surfaces, analytical studies of the process of the formation of rock cave-in of the immediate roof. Results. The article presents the results of numerical modeling of the three-dimensional stress-strain state of a layered rock massif, with boundary conditions of contact interaction between

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21

Siraziev, Lenar, and Danil Sergeev. "Experimental studies of the various soils bedding influence on the stress-strain state of a layered subsoil base of the slab foundation." E3S Web of Conferences 274 (2021): 03021. http://dx.doi.org/10.1051/e3sconf/202127403021.

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The purpose of the study is to reveal the effect of the stress-strain state of the three-layer soil base of the slab foundation with a rigid underlying layer, which is heterogeneous along the depth of the ground. The main results of the study are obtaining relative deformations in the soil massif and the settlement of ground values of each layer. The results of experimental studies are obtained in the form of a deformation pattern of a layered base, distribution graphs of compressive stresses in the soil in depth and in a horizontal plane. The significance of the results achieved for the const

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22

Tajčmanová, Lucie, Jiří Konopásek, and Jan Košler. "Distribution of zinc and its role in the stabilization of spinel in high-grade felsic rocks of the Moldanubian domain (Bohemian Massif)." European Journal of Mineralogy 21, no. 2 (2009): 407–18. http://dx.doi.org/10.1127/0935-1221/2009/0021-1899.

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23

Nafigin, I. O., V. T. Ishmuhametova, S. A. Ustinov, V. A. Minaev, and V. A. Petrov. "Territory Suitability Assessment for Conducting Detailed Geological and Mineralogical Mapping Based on Statistical Methods of Remote Sensing Data Processing Landsat-8: A Case Study in the Southeastern Transbaikalia, Russia." Исследования Земли из космоса 2023, no. 2 (2023): 61–83. http://dx.doi.org/10.31857/s0205961423010086.

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The work considers the suitability of using multispectral satellite remote sensing data Landsat-8 for conducting regional geological and mineralogical mapping of the territory of south-eastern Transbaikalia (Russia) in conditions of medium- low-mountain relief and continental climate. The territory was chosen as the object of study due to its diverse metallogenic specialization (Au, U, Mo, Pb-Zn, Sn, W, Ta, Nb, Li, fluorite). Diversity in composition and age of ore-bearing massifs of intrusive, volcanogenic and sedimentary rocks are also of interest. Statistical processing algorithms to increa

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Rebrov, Anton, and Ekaterina Lopatkina. "Influence of variety of soil-ground conditions of sandy soils (by the example of the Ust-Donetsk sandy massif) on the quality of the grape vine." BIO Web of Conferences 53 (2022): 01002. http://dx.doi.org/10.1051/bioconf/20225301002.

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The paper reveals the influence exerted on the development of post vitro grape mother plants and various microzones found on the Ust-Donetsk sand massif. The differences in the microzones were in the fertility level and a number of soil properties. The considerable influence provided by the growing conditions not only on the development of plants but also on the survival rate and life expectancy of mother bushes observed during the use of mother plants for 17 years has been noted. To ensure effective land management, a detailed site study and, depending on the differences identified, the use o

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Solodei, Ivan, Vasyl Pavlenko, and Oleksandr Kulikov. "One of the approaches to assessing the stability of the soil massif within the grid methods." Strength of Materials and Theory of Structures, no. 113 (November 29, 2024): 29–36. https://doi.org/10.32347/2410-2547.2024.113.29-36.

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An important stage for creating the possibility of using landslide and landslide-prone territories in economic activity is the assessment of their stability. To solve this difficult task, a significant number of various methods have been developed, each of which has its own advantages and disadvantages. In this work, a method for assessing the stability of slopes within the framework of grid methods is proposed. This method is implemented in a complex with the finite element method, which allows to estimate the stress-strain state and to determine of the stability coefficient and localize the

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Kovbyk, K. "Determination of yield of fractional material bydestruction of martiteore by water jets depending on the direction of their cutting." Collection of Research Papers of the National Mining University 69 (June 2022): 35–42. http://dx.doi.org/10.33271/crpnmu/69.035.

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Purpose. Highlight the main results of the experiments performed on the destruction of martite ores by the method of borehole hydraulic destruction by their layering. Since, as a result of the analysis of literary sources, it was established that some of the deposits of the Kryvyi Rihiron ore basin are suitable for hydro monitor excavation.Consideration of the method of introducing technologies for hydromechanization of mining operations in the conditions of the Kryvyi Rihiron ore basin is a topical issue. The methods. Using experimental installations conduct experiments on the destruction of

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Nafigin, Igor Olegovich, Venera Talgatovna Ishmukhametova, Stepan Andreevich Ustinov, Vasily Alexandrovich Minaev, and Vladislav Alexandrovich Petrov. "Geological and Mineralogical Mapping Based on Statistical Methods of Remote Sensing Data Processing of Landsat-8: A Case Study in the Southeastern Transbaikalia, Russia." Sustainability 14, no. 15 (2022): 9242. http://dx.doi.org/10.3390/su14159242.

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The work considers the suitability of using multispectral satellite remote sensing data Landsat-8 for conducting regional geological and mineralogical mapping of the territory of south-eastern Transbaikalia (Russia) based on statistical methods for processing remote sensing data in conditions of medium–low-mountain relief and continental climate. The territory was chosen as the object of study due to its diverse metallogenic specialization (Au, U, Mo, Pb-Zn, Sn, W, Ta, Nb, Li, fluorite). Diversity in composition and age of ore-bearing massifs of intrusive, volcanogenic, and sedimentary rocks a

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Amralinova, B. B., O. V. Frolova, I. E. Mataibaeva, B. B. Agaliyeva, and S. V. Khromykh. "Mineralization of rare metals in the lakes of East Kazakhstan." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 5 (2020): 16–21. http://dx.doi.org/10.33271/nvngu/2021-5/016.

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Purpose. Study on the chemical composition of lake waters, salt brines, brine and bottom sediments to identify the mineralization of rare metals and other types of minerals. Methodology. Mass spectrometric studies (mass spectrometer with inductively coupled plasma ICP-MS 7500cx from AgilentTechnologies) for the purpose of high-precision analytical studies on the chemical composition of salt lake water in order to assess the content of rare elements. The use of unmanned aerial vehicles for linking and geometrizing lakes. Findings. Field surveys on the geometrization and linking of lakes were ca

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Arestova, Natalia, and Irina Ryabchun. "Special aspects of the development of harmful objects on the grape mother plants of the original category in the conditions of the Rostov region." BIO Web of Conferences 25 (2020): 06001. http://dx.doi.org/10.1051/bioconf/20202506001.

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The results of monitoring the distribution of phytopathogens and pests under conditions of maintaining mother plantations, improved and propagated in tissue culture, category original in the conditions of the Nizhne-Kundryuchensky sand massif in Rostov region, are presented. In the basic vineyard, conditions are met that exclude the possibility of secondary infection of healthy plants and make it possible to obtain planting material of the elite category. Vineyards have not been cultivated on these areas for at least 10 years, which reduces the risk of the presence of outbreaks of harmful orga

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Cherdantsev, S. V., P. A. Shlapakov, and K. S. Lebedev. "Analysis of a sudden release of a gas-coal mixture from a conical cavity formed during the gas outburst." Mining Industry Journal (Gornay Promishlennost), no. 6/2023 (December 25, 2023): 109–15. http://dx.doi.org/10.30686/1609-9192-2023-6-109-115.

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Indispensable attributes in underground coal mining are methane and coal dust of various particle sizes. When they are mixed, coal-gas mixtures are formed, predisposed to various hazardous and extremely hazardous gas-dynamic phenomena, primarily to sudden emissions, accompanied by formation of cavities in the coal massif and intensive release of coal-gas mixtures from these cavities into the mine workings. The article deals with the problem of a one-dimensional stationary flow of a gas-coal mixture in an underground cone-shaped cavity formed during a sudden release. The Euler equation of motio

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Saponenko, D. S., and O. Y. Kuleshov. "Interaction of temperature fields in soil massif during abstraction of low-grade heat by U-shaped probes of geothermal heat pump units." Vestnik IGEU, no. 6 (December 28, 2022): 5–17. http://dx.doi.org/10.17588/2072-2672.2022.6.005-017.

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Research in the field of alternative energy sources use is of relevance due to the limited reserves of fossil fuels, the constant cost increase and flue gas emissions generated by power plants along with fuel combustion. The use of low-grade ground energy with the help of geothermal heat pump stations makes it possible to save fossil fuel and reduce environmental pollution. Since about 50 % of the one-time capital investment is spent on the construction of ground loop, the issues on improving the efficiency of ground heat abstraction are of particular relevance. However, until now there is no

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Liashenko, Vasilii, Oleg Khomenko, Vladimir Golik, and Mikhail Mitsik. "Justifying the parameters of ore fields underground mining with goaf backfilling." Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal 1 (February 15, 2022): 58–71. http://dx.doi.org/10.21440/0536-1028-2022-1-58-71.

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Relevance. Manmade deposits have a major impact on environmental ecosystems in mining. Therefore, the priority direction of comprehensive research is the creation of technologies and technical means based on minimizing production waste. Research objective is to justify the parameters of ore fields underground mining with goaf backfilling using mathematical modeling and multi-criteria minimization of mining waste based on the results obtained by the regression analysis and planning of an experiment, ensuring economic efficiency and environmental safety growth, as well as subsoil rational use an

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Kvitsiani, Tariel, and Liana Kvatskhava. "Impact of Underground Waters on the Stability of the Mountain Rock Slope. Depression Surface Equation." Works of Georgian Technical University, no. 1(523) (March 25, 2022): 217–30. http://dx.doi.org/10.36073/1512-0996-2022-1-217-230.

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The underground waters move in the slope massif of a homogeneous mountain rocks. It is demonstrated that the filtration forces are the main cause for the decreased soil strength and slope deformation that further causes landslides. It was found that calculating the variability of groundwater levels and the location of the depressive curve plays an important role in the slope sustainability analysis. To solve this problem, the movement of the filtration water flow is considered within the slope of a homogeneous soil, which relies on the water-permeable cliffy bed sloping at an angle  to the ho

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Soroka, Pavlo. "Comparison of the bearing capacities of a small-diameter bored pile obtained from the results of field tests and numerical modeling." Bases and Foundations, no. 47 (December 22, 2023): 38–48. http://dx.doi.org/10.32347/0475-1132.47.2023.38-48.

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Abstract. The paper compares the results of modeling static soil tests with a small-diameter drill pile with the data obtained from field tests. The calculations were performed by numerical modeling using the PC software "Plaxis", which is based on the finite element method. This problem was solved in a flat (2D) formulation for an axisymmetric model, which makes it possible to analyze the stress-strain state (SSS) and the interaction of elements of the pile-soil environment system. Separate computational models were created for two types of piles made using different technologies: a bor

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Bondareva, Liudmyla, and Maksym Khoronzhevskyi. "Assessing the impact of the process of constructing foundation pit enclosure structures on surrounding building." Bases and Foundations, no. 45 (December 23, 2022): 22–32. http://dx.doi.org/10.32347/0475-1132.45.2022.22-32.

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An important issue in the calculations of retaining structures of pits and their interaction with the foundation and existing structures is taking into account the features of their installation technology. Quite often, during calculations, this factor is ignored or taken into account by introducing correction factors, which are somehow based on the statistical processing of observation data during the construction of similar objects. The development of numerical methods has enabled designers to use detailed finite-element models in calculations to more accurately predict the behavior of

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KANTEMIROV, Valeriy Daniilovich, and Roman Sergeevich TITOV. "Optimization of parameters of open-pit screening and dumping stations." NEWS of the Ural State Mining University 59, no. 3 (2020): 107–14. http://dx.doi.org/10.21440/2307-2091-2020-3-107-114.

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Introduction. The mining and geological features of a number of deposits lead to the fact that during the development of the massif under the influence of drilling and blasting operations, the degree of crushing of a mineral depends on the content of useful components in it, and the chemical composition of the ore is differentiated by size classes. The determined relationship between the quality of the ore mass and its size can be used to increase the efficiency of the ore preparation technology through the use of screening and dumping stations (SDS) in open pits. The implementation of the ore

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Artem, Pavlychenko, Adamchuk Andrii, Shustov Oleksandr, and Anisimov Oleh. "JUSTIFICATION OF DUMP PARAMETERS IN CONDITIONS OF HIGH WATER SATURATION OF SOILS." TECHNOLOGY AUDIT AND PRODUCTION RESERVES 6, no. 3(56) (2020): 22–26. https://doi.org/10.15587/2706-5448.2020.218139.

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<em>The object of research is the stability parameters of the massif of a single-tier dump of soft overburden rocks with a flooded slope when it is formed by a dragline excavator. One of the most problematic areas is determining the safe distance of the dragline excavator from the upper edge of the slope in the conditions of the formation of a single-tier dump of soft overburden rocks, flooded with water.</em> <em>The calculation of the width of the prism of possible shift was carried out using the Rocscience Slide software, which, taking into account the parameters of the slope and the physic

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Lyashenko, V., B. Andreev, V. Stus, and T. Oliinyk. "INCREASING THE EFFICIENCY OF DEVELOPMENT OF SLOPING THIN ORE DE-POSITS IN ENERGY-DISTRUCTED MASSIFS." Norwegian Journal of development of the International Science 145 (November 26, 2024). https://doi.org/10.5281/zenodo.14236037.

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<strong>Abstract</strong> <strong>Topicality. </strong>It is caused by the growing needs of industrial society for metal supply. To achieve this, it is necessary to increase the efficiency of subsoil use and use the reserves of the existing mining technology. The greatest problems are associated with the development of gently dipping thin ore deposits in energy-disturbed massifs, where it is difficult to use high-performance mining machines and mechanisms with large overall dimensions. <strong>Research object. </strong>Technologies and technical means for the development of gently dipping thin

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Loubière, Vincent, Thomas Huraux, Luca Veyrin-Forrer, and Yannick Wolff. "De la donnée contribuée à l’effet de réseau :modélisation du graphe de l’écologie territoriale." Netcom 38-3/4 (2024). https://doi.org/10.4000/13ank.

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Orientée vers le déploiement massif de capteurs ou traceurs, l’optimisation et l’exploitation des flux (ressources, énergie, agents …), la smart city s’incarne de façon descendante et techniciste au cœur des dynamiques de grandes plateformes qui tendent à la centralisation. Cet article propose une approche ancrée sur le terrain, pour penser « par le bas » l’alternative d’un principe de « donnée contribuée » capable de produire un graphe de l’écologie territoriale, commun du territoire circulaire. S’appuyant sur une expérimentation en cours sur le territoire de Plaine Commune en Ile-de-France,

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Sarkar, Niladri. "Immature Ovarian Teratoma (Grade 3) Associated ith Massive Gliomatosis Peritonei." journal of medical science and clinical research 5, no. 7 (2017). http://dx.doi.org/10.18535/jmscr/v5i7.246.

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Lanchava, Omar, Giorgi Nozadze, Nino Arudashvili, and Zaza Khokerashvili. "TO DETERMINATION OF VENTILATION AIR OF THE METRO OF TBILISI BY THERMAL FACTOR." GEORGIAN SCIENTISTS, June 10, 2021. http://dx.doi.org/10.52340/gs.02.21.283.

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It is established that the geothermal field of a massif around underground structures located above the neutral layer is non-stationary because of the influence of solar radiation. Below the above marked layer, the formation of the geothermal field of the subsoil is due to the process of depths and is stationary. The definition of these fields is necessary for the performance of the thermal physical calculation of the ventilation and the specification of the air consumption of the underground facilities of the metro by the thermal factor. The paper gives formulas, tables and graphs with the he

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Lanchava, Omar, Nino Arudashvili, and Zaza Khokerashvili. "NON-STATIONARY TRANSMISSION OF HEAT AND HYGROSCOPIC MASS BETWEEN VENTIIATION FLOW OF METRO AND SURROUNDING MINING MASSIF." GEORGIAN SCIENTISTS, May 21, 2021. http://dx.doi.org/10.52340/gs.2021.305.

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According to modern technologies of construction and operation of transport tunnels, it is assumed in the present work that drainage of water does not occur inside the membrane in the area of reinforced coating of the tunnel and here takes place a non-stationary process of transfer of hygroscopic mass (moisture) together with а similar process of heat transfer between the ventilation stream and the surrounding mining massif. Thus, we have to deal only with the sorption mass content in the pores of the massif and the water in the explicit form in the tunnels can only be in exceptional cases as

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Bonnafous, Alain, and Yves Crozet. "Evaluation, devaluation or reevaluation of the high speed train lines ?" Les Cahiers Scientifiques du Transport - Scientific Papers in Transportation 32 | 1997 (November 30, 1997). http://dx.doi.org/10.46298/cst.11955.

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Cet article peut être téléchargé sur le site de la revue : http://www.afitl.com/CST/precedents-numeros/N32/BONNAF32.PDF (lien visité le 04/04/2007) The disappointing commercial results of the northern high speed train, associated with a global crisis of railway transport in France at the beginning of the 90', have led to call into question all the projects of new high speed train lines. All of them have been revalued in the Rouvillois report which concluded to the impossibility of building new high speed lines without public finances support. Given the fact that the most profitable lines are a

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Korovin, Dmitriy Dmitrievich. "Phosphate mineralization in leucogranites of the Peshcherninsky stock (Reftinsky massif, Middle Urals)." NEWS of the Ural State Mining University, March 15, 2023, 13–21. http://dx.doi.org/10.21440/2307-2091-2023-1-13-21.

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Relevance. Phosphate mineralization of Devonian intrusions in the Eastern zone of the Middle Urals is currently poorly understood, the data obtained may be important for interpreting the origin of rocks, especially in the case when standard methods of geochemical analysis of rocks do not give a clear picture. Xenotime and monazite are minerals concentrating rare earth elements, and REE distribution graphs are a very important characteristic of rocks. Objective – study of the chemical composition of phosphates in leucogranites of the Peshcherninsky stock. Research methodology. Determination of

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Ndavaro, Norbert Kambale, Walere Muhindo Sahani, Armand Kuyéma Natta, Apollon D. M. T. Hegbe, Ramdan Dramani, and Aliou Dicko. "Diversité et état de conservation de la flore ligneuse des îlots forestiers du massif montagneux de Lubero (R.D. Congo)." Aires naturelles protégées en Afrique francophone : entre conservation de la biodiversité et conflits environnementaux, quelles perspectives d’intégration et d’appropriation par les communautés riveraines ? Volume 24 Numéro 1 (2024). http://dx.doi.org/10.4000/11pdc.

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Connaître les mesures classiques de la diversité floristique est crucial pour étayer les stratégies de conservation des ressources végétales des forêts dégradées. La présente étude vise premièrement à apprécier les paramètres de diversité spécifique et structurale de la flore ligneuse des îlots forestiers du massif montagneux de Lubero et deuxièmement, à déterminer son état de conservation afin de proposer des mesures appropriées pour sa gestion durable. Un échantillonnage stratifié par grappe a été effectué pour les inventaires forestiers. À cet effet, 297 placeaux de 50 m2 chacun ont été mat

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Christo, Ananth, James S.Aaron, Nayyar Anand, Arul S.Benjamin, and Dev M.Jenish. "Enhancing Segmentation Approaches from GC-OAAM and MTANN to FUZZY K-C-MEANS." February 13, 2019. https://doi.org/10.5281/zenodo.2563805.

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Medical Image Segmentation is an activity with huge handiness. Biomedical and anatomical data are made simple to acquire because of progress accomplished in computerizing picture division. More research and work on it has improved more viability to the extent the subject is concerned. A few techniques are utilized for therapeutic picture division, for example, Clustering strategies, Thresholding technique, Classifier, Region Growing, Deformable Model, Markov Random Model and so forth. This work has for the most part centered consideration around Clustering techniques, particularly k-implies wh

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Rashkivskyi, Volodymyr, and Bogdan Fedyshyn. "Modelling of soil destruction process by bulldozer using a spatially oriented working unit." Transfer of innovative technologies, December 31, 2023, 58–70. http://dx.doi.org/10.32347/tit.2023.61.0202.

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The article uses approaches to creating a model for calculating soil cutting forces by spatially oriented working units of construction machines used on construction sites. The use of such a model is due to the need for continuous improvement of existing equipment and the creation of new ones, taking into account the existing needs. Today, there is a need for efficient performance of construction works related to the operation of construction equipment with dumping equipment. This, in turn, poses the task of determining the performance of mechanised earthworks in various working environments,

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Christo, Ananth, G.Gayathri, Barvin M.Majitha, Parsana N.Juki, and Banu M.Parvin. "Image Segmentation by Multi-shape GC-OAAM." August 16, 2017. https://doi.org/10.5281/zenodo.844016.

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Image segmentation plays a crucial role in many medical-imaging applications, by automating or facilitating the delineation of anatomical structures and other regions of interest. The liver image is segmented by using confusion algorithm. The performance is improved by the implementation of multiple MTANN. The MTANN supervised filter was effective for enhancement in medical images and is useful for improving the sensitivity and specificity. Multi-shape GC – OAAM segmentation methods have implemented on abdomen MRI and edge detection on liver image. It improves the object delineation time than

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Корнилков, С. В., та Р. С. Титов. "ОПТИМИЗАЦИЯ ПАРАМЕТРОВ карьерных ГРоХОтильно-перегрузочных пунктОВ ДЛЯ ВЫДЕЛЕНИЯ ПРОДУКТИВНЫХ ФРАКЦИЙ МИНЕРАЛЬНОГО СЫРЬЯ". Проблемы недропользования, № 3(38) (27 вересня 2023). https://doi.org/10.25635/2313-1586.2023.03.036.

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Горно-геологические особенности ряда месторождений приводят к тому, что при разработке массива под воздействием буровзрывных работ степень дробления полезного ископаемого зависит от содержания в нем полезных компонентов, а химический состав руды дифференцирован по классам крупности. Установленная зависимость между качеством рудной массы и ее крупностью может быть использована для повышения эффективности технологии рудоподготовки за счет применения в карьерах грохотильно-перегрузочных пунктов (ГПП). Реализация технологии рудоподготовки на основе ГПП позволит сократить затраты на обогащение и тр

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Christo, Ananth. "An Exclusive Review of Popular Image Processing Techniques." July 14, 2022. https://doi.org/10.5281/zenodo.6835805.

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This review paper brings out a summary of popular image processing techniques in practice for students, faculty members and researchers in medical image processing field. Through Image processing, we do some operations on an image, to get an enhanced image or we try to acquire some useful information from it.  They help in manipulating digital images through the use of computers. We Perform Image Restoration, Linear Filtering, Independent Component Analysis, Pixelation, Template Matching, Image Generation Techniques even to image to obtain promisable results. This Review Paper also summar

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