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  • 1
    Online Resource
    Online Resource
    Cham :Springer International Publishing :
    Keywords: Geology. ; Geophysics. ; Environment. ; Geology. ; Geophysics. ; Environmental Sciences.
    Description / Table of Contents: Stress-Strain State of Rocks -- Deformation and Fracture of Rocks In The Presence of Filtration -- Mechanical and Mathematical, and Experimental Modeling of Oil and Gas Well Stability -- Equipment For Studying Deformation and Strength Properties of Rocks In Triaxial Loading -- Loading Programs For Rock Specimens On Triaxial Independent Loading Test System (Tilts) -- Dependence of Permeability On Stress State -- Influence of Filtration On Stress-Strain State and Rock Fracture In The Well Vicinity -- Results of Tests of Rock Specimens By Using Tilts -- Mathematical Modeling of Mechanical and Filtration Processes In Near-Wellbore Zone -- Directional Unloading Method - A New Approach To Enhancing of Oil and Gas Well Productivity.
    Abstract: The book presents an integrated approach to studying the geomechanical processes occurring in oil and gas-bearing formations during their development. It discusses the choice of a model that takes into account the basic properties of rocks; experiments to find model parameters; numerical modeling; and direct physical modeling of deformation and filtration processes in reservoir and host rocks. Taking into account features of rock behavior, such as anisotropy of the mechanical properties of rocks during elastoplastic deformation; dependence of permeability on the total stress tensor; the contribution of the filtration flow to the formation stress state; and the influence of tangential as well as normal stresses on the transition to inelastic deformation, it demonstrates how the presented approach allows the practical problems of increasing the productivity of wells, oil recovery, and ensuring the stability of wellbores to be solved. The book is intended for specialists, including geoengineers working in the oil and gas sector, teachers, graduate students and students, as well as all those interested in scientific and technological developments to meet the enormous demand for raw materials and energy. .
    Type of Medium: Online Resource
    Pages: XVI, 166 p. 140 illus., 107 illus. in color. , online resource.
    Edition: 1st ed. 2020.
    ISBN: 9783030266080
    Series Statement: Advances in Oil and Gas Exploration & Production,
    DDC: 551
    Language: English
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  • 2
    Keywords: Geotechnical engineering. ; Geology. ; Geophysics. ; Petrology. ; Geotechnical Engineering and Applied Earth Sciences. ; Geology. ; Geophysics. ; Petrology.
    Description / Table of Contents: Preliminary study of the opportunity to predict changes in rock samples inner structure caused by triaxial loading based on stress-strain relationship -- Estimates of the periodicity of atmospheric blockings over Kazakhstan in the spring-summer time according to ERA 5 reanalysis data -- Relations of interannual variability of topography of water surfaces of oceanic regions with solar activity on the example of Black and Azov seas -- Filtration of salt solutions taking into account the Osmotic effect -- Investigation of features of water circulation in the northern part of the Black Sea on the basis of the assimilation of observational data in the autumn-winter season of 2016 -- Propagation of tsunami waves in a T-shaped bay -- The Features of Simulation of Radar Altimeter Return Waveform Using Hermite Polynomials -- Abnormal Statistics of Sea Waves -- Emission of nanoparticles during loading rock salt -- Retrospective analysis methods in the study of the existence of anomalous processes in geodynamic systems.
    Abstract: The book presents short papers of participants of the 8th International Scientific Conference-School for Young Scientists "Physical and Mathematical Modeling of Earth and Environment Processes" (Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences). The book includes theoretical and experimental studies of processes in the atmosphere, oceans, the lithosphere and their interaction; environmental issues; problems of human impact on the environment; methods of geophysical research.
    Type of Medium: Online Resource
    Pages: X, 646 p. 277 illus., 180 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031259623
    Series Statement: Springer Proceedings in Earth and Environmental Sciences,
    DDC: 624.151
    Language: English
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  • 3
    Keywords: Earth sciences. ; Geophysics. ; Physical geography. ; Earth Sciences. ; Geophysics. ; Earth System Sciences.
    Description / Table of Contents: Role of nonlinear processes in infragravity waves evolution -- On the boundaries of paleostructures of the Ashamba river in the Blue bay near Gelendzhik according to broadband continuous seismic and acoustic profiling and GPS positioning -- Selection of the distribution of sea surface elevations for modeling the reflected pulse of the radio altimeter -- Adapting the method of directional unloading of the formation for low permeable deposits -- Simulation of filtration into a well taking into account of elastoplastic deformation near borehole -- Far Internal Gravity Waves Fields From Radially Symmetric Perturbation.
    Abstract: This book presents short papers of participants of the 7th International Scientific Conference-School for Young Scientists "Physical and Mathematical Modeling of Earth and Environment Processes" (Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences). The book includes theoretical and experimental studies of processes in the atmosphere, oceans, the lithosphere, and their interaction; environmental issues; problems of human impact on the environment; and methods of geophysical research.
    Type of Medium: Online Resource
    Pages: IX, 337 p. 162 illus., 96 illus. in color. , online resource.
    Edition: 1st ed. 2022.
    ISBN: 9783030995041
    Series Statement: Springer Proceedings in Earth and Environmental Sciences,
    DDC: 550
    Language: English
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  • 4
    Online Resource
    Online Resource
    Cham :Springer Nature Switzerland :
    Keywords: Geotechnical engineering. ; Geology. ; Sedimentology. ; Geophysics. ; Geotechnical Engineering and Applied Earth Sciences. ; Geology. ; Sedimentology. ; Geophysics.
    Description / Table of Contents: Chapter 1: Analysis of existing approaches to solving the problem of sand production during the operation of UGS wells -- Chapter 2: Experimental facilities for studying the deformation and strength properties of rocks and geomechanical modelling -- Chapter 3: Methodology for performing TILTS experiments to study the deformation, strength and filtration properties of rocks -- Chapter 4: Results of TILTS testing of the deformation, strength and filtration characteristics of reservoir rocks at uderground gas storage facilities based on triaxial tests -- Chapter 5: Geomechanical modelling of the stress-strain state in UGS reservoirs during cyclic changes in reservoir pressure and downhole pressure -- Chapter 6: Physical modelling programs of rock deformation and fracture in the near-wellbore zone of USG during gas injection and extraction -- Chapter 7: Results of physical modelling of deformation and filtration processes in the bottomhole zone of ugs wells during gas extraction and injection -- Chapter 8: Rationale for the possibility of using the directed unload reservoir method (DUR method) to increase rock permeability in the bottomhole zone of UGS wells -- Chapter 9: Justification of predictive recommendations for maximum and minimum allowable drawdowns, well flow rates and prevention of sand production.
    Abstract: This book is devoted to the most important and urgent problems arising during the operation of underground gas storage facilities (UGS) and associated with the destruction of the reservoir and sand production into the wells. UGS facilities play a special role in ensuring high reliability of stable and guaranteed gas supplies to consumers. However, despite many years of experience in UGS well operation, there is still no sufficiently substantiated geomechanical model of reservoir failure and a mathematical description of the processes occurring in the reservoir-well system, taking into account the peculiarities of the mechanical behavior of reservoir rocks during cyclic injection and extraction of gas. As a result, there are no reliable criteria for establishing a rational regime for the operation of an UGS wells in conditions of a possible destruction of reservoir rocks. Further development of underground gas storage direction requires the introduction of innovative technologies that can be used both in the design of new UGS facilities and to extend the safe and efficient operation of existing underground gas storage facilities. To solve these problems, the most promising technologies, taking into account their efficiency, relatively low cost and environmental safety, are those based on the geomechanical approach. The book is addressed to specialists in the development and operation of underground gas storage facilities, as well as specialists in geomechanics of oil and gas fields. It can be useful for students and graduate students studying in the speciality "Development of oil and gas fields".
    Type of Medium: Online Resource
    Pages: XIV, 147 p. 56 illus., 47 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031347658
    Series Statement: Springer Geology,
    DDC: 624.151
    Language: English
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  • 5
    Call number: PIK W 510-15-0051
    In: Research report
    Description / Table of Contents: Contents: Introduction ; Simulation Models of Forest Ecosystems ; Spatial Forest Models ; Analytical Models of Tree Populations and Forest Communities ; Conclusions
    Type of Medium: Monograph available for loan
    Pages: X, 116 S. : Ill., graph. Darst.
    ISBN: 9004114157
    Series Statement: Research report 8
    Branch Library: PIK Library
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  • 6
    Call number: 9783319777887 (e-book)
    Description / Table of Contents: This book is the result of collaboration within the framework of the Third International Scientific School for Young Scientists held at the Ishlinskii Institute for Problems in Mechanics of Russian Academy of Sciences, 2017, November. The papers included describe studies on the dynamics of natural system – geosphere, hydrosphere, atmosphere—and their interactions, the human contribution to naturally occurring processes, laboratory modeling of earth and environment processes, and testing of new developed physical and mathematical models. The book particularly focuses on modeling in the field of oil and gas production as well as new alternative energy sources.
    Type of Medium: 12
    Pages: 1 Online-Ressource (xiv, 382 Seiten) , Illustrationen, Karten, Diagramme
    ISBN: 9783319777887 , 978-3-319-77788-7
    ISSN: 2197-9545 , 2197-9553
    Series Statement: Springer geology
    Language: English
    Note: Contents The Tyrrhenian Continent Ragmentation / Al. A. Schreider, A. A. Schreider, and A. E. Sazhneva Long Waves Influence on Polarization Ratio for Microwave Backscattering from the Sea Surface / Alexandr Zapevalov Elimination of Hydrocarbons Spills on Water Objects and Fluorescent Diagnostics of Water Pureness / T. O. Chaplina and E. V. Stepanova Investigations of Internal Waves in the Seas of Russia and in the Central Atlantic / K. S. Grigorenko and S. M. Khartiev Critically Stressed Fractures and Their Relation to Elastic Moduli / Nikita Vladislavovich Dubinya and Ilya Vladimirovich Fokin Mechanical Properties of Thin Films of Coals by Nanoindentation / Elena Kossovich, Svetlana Epshtein, Nadezhda Dobryakova, Maxim Minin, and Darya Gavrilova Using the Variational Approach and Adjoint Equations Method Under the Identification of the Input Parameter of the Passive Admixture Transport Model / Sergey Germanovich Demyshev, Vladimir Sergeevich Kochergin, and Sergey Vladimirovich Kochergin Mechanisms Accounting for Interannual Variability of Advective Heat Transport in the North Atlantic Upper Layer / A. B. Polonsky and P. A. Sukhonos Convective Jets: Volcanic Activity and Turbulent Mixing in the Boundary Layers of the Atmosphere and Ocean / Alexander Vulfson, Oleg Borodin, and Petr Nikolaev Theoretical and Experimental Evaluation of Formation Fluid Composition Influence on Filtration and Elastic Properties of Porous Media / Daniil Karmanskiy and Andrey Maltsev Synchronous Changes of Geophysical Fields in the Earth’s Near-Surface Zone / Svetlana Riabova and Alexander Spivak Vertical Mass Transport by Weakly Nonlinear Inertia-Gravity Internal Waves / A. A. Slepyshev and D. I. Vorotnikov Field Investigation and Numerical Simulation of Wind-Wave Interaction at the Middle-Sized Inland Reservoirs / G. A. Baydakov, A. M. Kuznetsova, V. V. Papko, A. A. Kandaurov, M. I. Vdovin, D. A. Sergeev, and Yu. I. Troitskaya Multidecadal Variability of Hydro-Thermodynamic Characteristics and Heat Fluxes in North Atlantic / N. A. Diansky and P. A. Sukhonos Reconstruction of Hydrophysical Fields in the Coastal Region of the Black Sea on the Basis of Hydrodynamic Model with Assimilation of Observational Data / Demyshev Sergei and Evstigneeva Natalia The Vertical Turbulent Exchange Features in the Black Sea Active Layer / A. S. Samodurov and A. M. Chukharev Model of Oscillations of Earth’s Poles Based on Gravitational Tides / S. A. Kumakshev Laboratory Modeling of Ring Geophysical Structures / B. Shvilkin Principles of Controlling the Apparatus Function for Achieving Super-Resolution in Imagers / E. N. Terentiev, N. E. Terentiev, and I. I. Farshakova A Regular System of Vortices in a Circular Stratified Flow Behind the Edge of a Rotating Disk / Roman N. Bardakov Comparison of Empirical Sea-Surface Slopes Probability Densities for the Purposes of Satellite Sounding / Nick Evgenievich Lebedev and Alexandr Sergeevich Zapevalov Mathematical Modeling of Thermomechanical Behavior of Porous Impermeable Medium with Active Filler / M. V. Alekseev, E. B. Savenkov, and N. G. Sudobin Evaluation of the Temporal Dynamics of Oceanic Eddies with Initial Peripheral Rate Shift / Alexander Aleхeyevich Solovyev and Dmitry Alexandrovich Solovyev Reservoir Proxy Model as a Part of Geo-Technological Model of Gas Fields and Underground Gas Storages / Sergey A. Kirsanov, Andrey V. Chugunov, Oleg S. Gatsolaev, Yan S. Chudin, Ivan А. Fedorov, Aleksey A. Kontarev, and Alexandra P. Popovich Understanding of Rock Material Behavior Under Dynamic Loadings Based on Incubation Time Criteria Approach / A. N. Martemyanov and Yu. V. Petrov Analytical Research of Character of Relative Permeability Function Under Unsteady Two-Phase Filtration / D. U. Semiglasov and V. M. Maximov Estimation of the Hydraulic Fracture Propagation Rate in the Laboratory Experiment / M. Trimonova, E. Zenchenko, N. Baryshnikov, S. Turuntaev, P. Zenchenko, and A. Aigozhieva Paleomagnetism of Some Basalts Samples from the Red Sea Rift Zone / V. I. Maksimochkin and L. R. Preobrazhenskii Influence of Hydrodynamic Perturbations on Dispersion Characteristics of a Near-Water Aerosol / V. N. Nosov, S. G. Ivanov, V. I. Pogonin, V. I. Timonin, N. A. Zavyalov, E. A. Zevakin, and A. S. Savin A Comparative Analysis of Optical Methods for Detection and Prediction of Radionuclides Migration in the Geosphere / B. P. Yakimov, G. S. Budylin, V. G. Petrov, V. V. Fadeev, S. N. Kalmykov, S. A. Evlashin, and E. A. Shirshin Advanced Procedure for Estimation of Phytoplankton Fluorescence Quantum Yield Using Remote Sensing Data: A Comparative Study of the Amundsen Sea Polynyas / Elena E. Nikonova, Evgeny A. Shirshin, Victor V. Fadeev, and Maxim Y. Gorbunov The Exact Mathematical Models of Nonlinear Surface Waves / Anatoly Kistovich Numerical Analysis and Prediction of the Consequences of Natural and Technological Impacts in Coastal Areas of the Azov Sea / T. Ya. Shul’ga, S. M. Khartiev, and A. R. Ioshpa The Problem of Forecasting of Vertical Temperature Distribution in Inland Hydrophysical Objects with Experimental Data / D. Gladskikh, D. Sergeev, G. Baydakov, I. Soustova, and Yu. Troitskaya Modeling Geomechanical Processes in Oil and Gas Reservoirs at the True Triaxial Loading Apparatus / V. I. Karev, D. M. Klimov, and Yu. F. Kovalenko Modeling of Deformation and Filtration Processes Near Wells with Emphasis of their Coupling and Effects Caused by Anisotropy / V. I. Karev, D. M. Klimov, Yu. F. Kovalenko, and K. B. Ustinov Effect of a Tidal Wave Caused by Large Gliding Satellite on Formation of 220 km Seismic Boundary and Split of the Mantle into Blocks / S. Kasyanov and V. Samsonov Influence of Baroclinicity on Sea Level Oscillations in the Baltic Sea / Evgeny Zakharchuk, Natalia Tikhonova, Anatoly Gusev, and Nikolay Diansky Author Index
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  • 7
    Publication Date: 2020-05-16
    Description: In osteoarthrosis, pathological features of articular cartilage are associated with degeneration and nanomechanical changes. The aim of this paper is to show that indentation-atomic force microscopy can monitor wear-related biomechanical changes in the hip joint of patients with osteoarthritis. Fifty patients (N = 50), aged 40 to 65, were included in the study. The mechanical properties and the submicron surface morphology of hyaline cartilage were investigated using atomic force microscopy. Measurements of the roughness parameters of cartilage surfaces were performed, including the arithmetic average of absolute values (Ra), the maximum peak height (Rp), and the mean spacing between local peaks (S). The arithmetic mean of the absolute values of the height of healthy cartilage was 86 nm, while wear began at Ra = 73 nm. The maximum changes of values of the roughness parameters differed from the healthy ones by 71%, 80%, and 51% for Ra, Rp, and S, respectively. Young’s modulus for healthy cartilage surfaces ranged from 1.7 to 0.5 MPa. For the three stages of cartilage wear, Young’s modulus increased, and then it approached the maximum value and decreased. AFM seems to be a powerful tool for surface analysis of biological samples as it enables indentation measurements in addition to imaging.
    Electronic ISSN: 1996-1944
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 8
    Publication Date: 2020-08-15
    Description: The purpose of this study was twofold. Firstly, we proposed a measurement protocol for the atomic force microscopy (AFM) method to determine the nanomechanical properties of articular cartilage in experimental osteoarthritis in rabbits. Then, we verified if mechanical properties can be evaluated with AFM shortly after platelet-rich plasma (PRP) injection. We hypothesized that the modulus determined by AFM indentation experiments could be utilized as a progressive disease marker during the treatment of osteoarthritis. The rabbits were equally divided into three groups of six: control (group 1); injections of saline (0.5 mL) and 10% surgical talc (Talcum Pharmaceutical®, Minsk, Belarus) were delivered into the right knee under the patella (group 2 and 3); and PRP was injected into the right knee (group 3). In group 2, the arithmetic average of absolute values (Ra) change was a 25% increase; the maximum peak height (Rp) increased by over 102%, while the mean spacing between local peaks (S) increased by 28% (p 〈 0.05). In group 3, Ra increased by 14% and Rp increased by 32%, while S decreased by 75% (p 〈 0.05). The Young’s modulus of the surface layers decreased by 18% as a result of induced model of osteoarthritis (IMO) (p 〈 0.05), and it increased by 9% (p 〈 0.05) as a result of PRP therapy, which means that the mechanical properties of cartilage were partially recovered. This research demonstrates that Young’s modulus utilized on a nanometer scale has potential to be a progressive disease marker during the treatment of osteoarthritis.
    Electronic ISSN: 1420-3049
    Topics: Chemistry and Pharmacology
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  • 9
    ISSN: 0931-1890
    Keywords: Key words Analytical ; experimental and computer models ; Fractal measure ; Spruce ; Tree crown
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  In this paper we discuss three approaches to the modelling of tree crown development. These approaches are experimental (i. e. regressive), theoretical (i. e. analytical) and computer-simulational [by L(indenmayer)-system] modelling. The common assumption of these approaches is that a tree may be regarded as a fractal object, being a collection of self-similar objects that combines properties of two- and three-dimensional bodies. We show that a fractal measure of crown can be used as the link between the mathematical models of crown growth and light propagation through the canopy. The approach using the Lindenmayer computer system allows crown development to be visualized and the model to be calibrated according to experimental data. Different stages of the above-mentioned approaches are described. The experimental data for spruce, the description of the computer system for modelling and a variant computer model are presented.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 420 (2002), S. 218-223 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Despite the practically unlimited number of possible protein sequences, the number of basic shapes in which proteins fold seems not only to be finite, but also to be relatively small, with probably no more than 10,000 folds in existence. Moreover, the distribution of proteins among these folds is ...
    Type of Medium: Electronic Resource
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