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Journal articles on the topic 'Media displacement theory'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Bentsen, R. G. "A New Approach to Instability Theory in Porous Media." Society of Petroleum Engineers Journal 25, no. 05 (1985): 765–79. http://dx.doi.org/10.2118/12725-pa.

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Abstract Early work in the area of instability theory is limited in that it is based on first-order perturbation theory and the concept of a velocity potential. Thus, while it can deal with an incipient finger, it cannot deal with the subsequent growth of a finger. This paper develops a new approach to the instability theory that overcomes this limitation. The new approach, like earlier work, is based on the assumption that the immiscible displacement of one fluid by another can be treated as a moving-boundary problem. Therefore, two solutions arise, one for each side of the plane interface th

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2

Liu, Haitao, and Liang Wang. "Fundamental solutions of two 3D rectangular semi-permeable cracks in transversely isotropic piezoelectric media based on the non-local theory." Multidiscipline Modeling in Materials and Structures 16, no. 6 (2020): 1497–520. http://dx.doi.org/10.1108/mmms-09-2019-0169.

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PurposeThe paper aims to present the non-local theory solution of two three-dimensional (3D) rectangular semi-permeable cracks in transversely isotropic piezoelectric media under a normal stress loading.Design/methodology/approachThe fracture problem is solved by using the non-local theory, the generalized Almansi's theorem and the Schmidt method. By Fourier transform, this problem is formulated as three pairs of dual integral equations, in which the elastic and electric displacements jump across the crack surfaces. Finally, the non-local stress and the non-local electric displacement fields n

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3

Falls, A. H., and W. M. Schulte. "Theory of Three-Component, Three-Phase Displacement in Porous Media." SPE Reservoir Engineering 7, no. 03 (1992): 377–84. http://dx.doi.org/10.2118/19387-pa.

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4

Leroy, J. M., A. Floquet, and B. Villechaise. "Thermomechanical Behavior of Multilayered Media: Theory." Journal of Tribology 111, no. 3 (1989): 538–44. http://dx.doi.org/10.1115/1.3261963.

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Hard coatings are more and more used to improve the mechanical and tribological behavior of surfaces. Thermomechanical cracking can occur in these coatings when they slide under heavy loads. We present a two-dimensional model of a finite thickness layered medium submitted to a moving heat source. The analytical solution of the temperature and thermoelastic stress fields is obtained using Fourier transforms. The behavior of each layer is described by transfer-matrices and a relation between the displacement- and stress-vectors is given. The originality of the study is the use of a Fast Fourier

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5

Rabbani, Harris Sajjad, Dani Or, Ying Liu, et al. "Suppressing viscous fingering in structured porous media." Proceedings of the National Academy of Sciences 115, no. 19 (2018): 4833–38. http://dx.doi.org/10.1073/pnas.1800729115.

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Finger-like protrusions that form along fluid−fluid displacement fronts in porous media are often excited by hydrodynamic instability when low-viscosity fluids displace high-viscosity resident fluids. Such interfacial instabilities are undesirable in many natural and engineered displacement processes. We report a phenomenon whereby gradual and monotonic variation of pore sizes along the front path suppresses viscous fingering during immiscible displacement, that seemingly contradicts conventional expectation of enhanced instability with pore size variability. Experiments and pore-scale numeric

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6

de Freitas, J. A. Teixeira, I. D. Moldovan, and C. Cismaşiu. "Hybrid-Trefftz displacement element for poroelastic media." Computational Mechanics 48, no. 6 (2011): 659–73. http://dx.doi.org/10.1007/s00466-011-0612-7.

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7

Shahzad, Umair, Mudassar Hussain, and Syed Muhammad Saqib Saleem. "Online News Displaces Print Newspaper: Media Students' Preferences and Perceptions." Global Digital & Print Media Review VI, no. II (2023): 264–73. http://dx.doi.org/10.31703/gdpmr.2023(vi-ii).18.

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This study extends the uses and gratifications theory to explore the uses of general, time, daily, and weekly news. It also applies the theory of media displacement to investigate the ease, preference, emergency use, credibility perception, and confidence in forming opinions for news from print newspapers and online sources. A survey with 244 students from communication and media disciplines in Lahore's universities revealed that 68% of media students read news for only 30 minutes daily. 65% preferred daily updates and found it easier to access news online (62%). During emergencies, 79% relied

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8

Xue, Bing Bing, Hong Yu Xu, Zhu Mu Fu, and Qing Yong Sun. "Effect of Thermal Relaxation on Propagation of Longitudinal Displacement Wave." Advanced Materials Research 146-147 (October 2010): 314–17. http://dx.doi.org/10.4028/www.scientific.net/amr.146-147.314.

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The micropolar elasticity theory takes into consideration the granular character of the medium, describes deformations by a microrotation and a microdisplacement. A model can be applied to the coupled theory as well as to five generalizations, such as L-S theory, G-L theory, H-I theory, G-N theory of type (II) and C-T theory. And if some parameters in this model are taken as given values, we can easily deduce the known models of Kelvin-Voigt model and other generalized micropolar/magneto/thermo/viscoelastic theory model. Employing the model of micropolar generalized magneto-thermo-elasticity,

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Xue, Bing Bing, Hong Yu Xu, Zhu Mu Fu, and Qing Yong Sun. "Reflection and Refraction of Longitudinal Displacement Wave at Interface between Two Micropolar Elastic Solid." Advanced Materials Research 139-141 (October 2010): 214–17. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.214.

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Using the model of generalized micropolar magneto-thermo-elasticity, reflection and refraction of longitudinal displacement wave at interface of two welded micropolar elastic media are studied. The model can be applied to the coupled theory as well as to five generalizations, such as L-S theory, G-L theory, H-I theory, G-N theory of type (II) and C-T theory. And if some parameters in this model are taken as given values, we can easily deduce the known models of Kelvin-Voigt model and other generalized micropolar/magneto/thermo/viscoelastic theory model. Using continuous conditions at the inter

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10

Du, Jifang, Yinqiu Zhang, Shuaifeng Wu, Yu Dong, and Junwei Shi. "Experimental and Analytical Modeling of Ground Displacement Induced by Dynamic Compaction in Granular Soils." Buildings 13, no. 2 (2023): 539. http://dx.doi.org/10.3390/buildings13020539.

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Dynamic compaction (DC) is a ground treatment method that achieves soil densification effects using impact forces. The ground displacement of a crater induced by a hammer is often used for the determination of densification, but less attention has been paid to internal displacement in the ground. To establish an overall understanding of the displacements caused by DC, a laboratory experiment was conducted with sand. The experiment included four energy levels by changing the falling height of the hammer. Meanwhile, a calculation model based on stochastic media theory was proposed to calculate t

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11

Scanziani, Alessio, Qingyang Lin, Abdulla Alhosani, Martin J. Blunt, and Branko Bijeljic. "Dynamics of fluid displacement in mixed-wet porous media." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 476, no. 2240 (2020): 20200040. http://dx.doi.org/10.1098/rspa.2020.0040.

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We identify a distinct two-phase flow invasion pattern in a mixed-wet porous medium. Time-resolved high-resolution synchrotron X-ray imaging is used to study the invasion of water through a small rock sample filled with oil, characterized by a wide non-uniform distribution of local contact angles both above and below 90 ° . The water advances in a connected front, but throats are not invaded in decreasing order of size, as predicted by invasion percolation theory for uniformly hydrophobic systems. Instead, we observe pinning of the three-phase contact between the fluids and the solid, manifest

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12

Kim, Ji-Hyun. "An exactly solvable model for non-Fickian transport in dynamically heterogeneous media." Journal of Statistical Mechanics: Theory and Experiment 2024, no. 10 (2024): 103203. http://dx.doi.org/10.1088/1742-5468/ad7b23.

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Abstract Diffusion, observed in various condensed phases, finds its theoretical background in Einstein’s theory of Brownian motion, characterized by the linear time-dependence of mean square displacement (MSD) denoting Fickian behavior and the Gaussian distribution of particle displacement. Nevertheless, diverse systems exhibit either non-linear, non-Fickian time-dependence of the MSD or non-Gaussian displacement distribution. Montroll and Weiss’s continuous-time random walk (CTRW) model and the stochastic diffusivity (SD) model have provided insights into anomalous diffusion phenomena and Fic

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13

Haythornthwaite, Robert M. "Simple Shear in Granular Media." Applied Mechanics Reviews 50, no. 11S (1997): S81—S86. http://dx.doi.org/10.1115/1.3101854.

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The ring shear box is analyzed using an isotropic strain hardening/softening model for granular media, permitting an estimate to be made of the stresses developed under conditions of simple shear, at the critical void ratio. Observation of the radial stress on the inner or outer walls of the test chamber would provide a measure of the relative value of the otherwise unknown intermediate principal stress. In a series of five tests on a quartz sand, average pressures exerted by the sand on the outer wall of the test chamber reached well defined, repeatable levels. As interpreted by the theory, t

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14

UDEH, Kenneth Nwannebuike DUNU Ifeoma Vivian UKWUEZE Cornelius Aghadiegwu OBIOHA Benjamin Kelechi. "DISPLACEMENT OR ENHANCEMENT EFFECT: A REVIEW OF THE APPLICATION OF 'CREATIVE DESTRUCTION' THEORY ON ISSUES IN COMMUNICATION AND SOCIETY." IMSU Journal of Communication Studies 8, no. 1 (2024): 33–51. https://doi.org/10.5281/zenodo.12692928.

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Early proponents of creative destruction theory argued that something new brings about the demise of whatever existed before it.This reasoning is, probably, derived from two different perspectives: structure-centred and medium-centred perspectives. Theseperspectives, however, negate the common premise that ‘nothing in life can shoulder a complete functional alternative to another’.Everything, including new media and old media; if one reflects from a user-centred vantage point, has its own uniqueness anddistinctive characteristic to serve and satisfy different users’ needs, at

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15

CHEN, MENG-CHENG. "3D FRACTURE MECHANICS FOR A MODE I CRACK IN PIEZOELECTRIC MEDIA." International Journal of Computational Methods 01, no. 03 (2004): 445–56. http://dx.doi.org/10.1142/s021987620400023x.

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This paper deals with mode I fracture problems for a planar crack in an infinite piezoelectric solid subjected to electric and tension loading. The finite-part integral concept is used to prove rigidly hypersingular integral equations for the crack by using three-dimensional linear piezoelectricity theory. Investigations on the singularities and the singular stress and electric displacement fields in the vicinity of the crack are made by the dominant-part analysis of the two-dimensional hypersingular integrals. Thereafter the stress and electric displacement intensity factor K-fields and the e

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16

Zhang, Jianfeng. "Elastic wave modeling in fractured media with an explicit approach." GEOPHYSICS 70, no. 5 (2005): T75—T85. http://dx.doi.org/10.1190/1.2073886.

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This paper presents a numerical technique for modeling elastic-wave propagation in media with discrete distributions of fractures. The scheme is developed following the explicit treatments of fractures based on a linear-slip displacement-discontinuity model instead of using an effective-medium theory. The algorithm is implemented on an irregular numerical mesh by using the proposed integral forms of the elastic-momentum equations and displacement-discontinuity conditions together with a triangular-grid finite-difference operator. As a result, arbitrary nonplanar fractures can be explicitly rep

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17

Радаев, Юрий Николаевич. "Metaharmonic potentials in mechanics of micropolar media." Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, no. 3(45) (December 29, 2020): 35–48. http://dx.doi.org/10.37972/chgpu.2020.86.27.003.

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Рассматриваются дифференциальные уравнения для потенциалов перемещений и микровращений, замещающие связанные векторные дифференциальные уравнения линейной теории микрополярной упругости. Исследуются только гармонические зависимости от времени. Опираясь на представление векторов перемещений и микровращений с помощью четырех винтовых векторов, обеспечивающее выполнимость связанных векторных дифференциальных уравнений линейной теории микрополярной упругости, получены новые представления в терминах двух метагармонических векторных полей. Проблема нахождения вихревых составляющих перемещений и микр

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18

Радаев, Юрий Николаевич. "Metaharmonic potentials in mechanics of micropolar media." Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, no. 3(45) (December 29, 2020): 35–48. http://dx.doi.org/10.37972/chgpu.2020.86.27.003.

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Рассматриваются дифференциальные уравнения для потенциалов перемещений и микровращений, замещающие связанные векторные дифференциальные уравнения линейной теории микрополярной упругости. Исследуются только гармонические зависимости от времени. Опираясь на представление векторов перемещений и микровращений с помощью четырех винтовых векторов, обеспечивающее выполнимость связанных векторных дифференциальных уравнений линейной теории микрополярной упругости, получены новые представления в терминах двух метагармонических векторных полей. Проблема нахождения вихревых составляющих перемещений и микр

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19

Tokunaga, Robert S. "An Examination of Functional Difficulties From Internet Use: Media Habit and Displacement Theory Explanations." Human Communication Research 42, no. 3 (2016): 339–70. http://dx.doi.org/10.1111/hcre.12081.

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20

Chen, Linfeng, and Marek-Jerzy Pindera. "Plane Analysis of Finite Multilayered Media With Multiple Aligned Cracks—Part I: Theory." Journal of Applied Mechanics 74, no. 1 (2006): 128–43. http://dx.doi.org/10.1115/1.2201883.

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Elasticity solutions are developed for finite multilayered domains weakened by aligned cracks that are in a state of generalized plane deformation under two types of end constraints. Multilayered domains consist of an arbitrary number of finite-length and finite-height isotropic, orthotropic or monoclinic layers typical of differently oriented, unidirectionally reinforced laminas arranged in any sequence in the plane in which the analysis is conducted. The solution methodology admits any number of arbitrarily distributed interacting or noninteracting cracks parallel to the horizontal bounding

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21

Lüddeke, Christian Truitt, Calvin Lumban Gaol, Gion Joel Strobel, and Leonhard Ganzer. "Experimental and Analytical Investigation of an Immiscible Displacement Process in Real Structure Micromodels." Energies 15, no. 18 (2022): 6741. http://dx.doi.org/10.3390/en15186741.

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The recovery of oil from a reservoir can be accomplished with various methods, one of the most commonly applied types being waterflooding. A common theory used to describe immiscible displacement is the Buckley–Leverett theory. A brand new type of micromodel, generated and fabricated by using a micro-computer tomography (μCT) image stack of a real sandstone core, was used to conduct immiscible displacement experiments. Critical logging data were recorded, and a high-resolution camera took pictures of the displacement process. In an image processing tool (MATLAB), an algorithm was developed to

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22

ZIMMERMAN, WILLIAM B. "A WEAKLY NONLINEAR INSTABILITY OF MISCIBLE DISPLACEMENTS IN A RECTILINEAR POROUS MEDIA FLOW." International Journal of Bifurcation and Chaos 04, no. 05 (1994): 1319–28. http://dx.doi.org/10.1142/s0218127494001003.

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The linear stability theory of Tan & Homsy [1986] is extended to include the effects of weak nonlinear coupling between mass flux and viscous effects when the viscous fingers grow from a slowly diffusing, nearly flat displacement front. A regular perturbation scheme combined with a similarity-separation of variables technique leads to a Landau equation for the amplitude of the disturbance. The Landau constant has a simple pole for a given wavenumber within the linear theory cutoff wavenumber for growth. An argument is given that this pole leads to pairing of fingers while the instability r

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23

Sutherland, Meghan. "Liberalism, Media, and the State of Abandon." Theory & Event 20, no. 4 (2017): 989–1034. http://dx.doi.org/10.1353/tae.2017.0088.

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Contemporary political theory places the logic of abandonment at the center of its critique of liberalism, drawing necessary attention to the conditions of statelessness, territorial displacement, and non-recognition that define experiences of liberal and neoliberal governance around the world. Without dismissing this approach, this essay lays out a different way of thinking about both the logic of abandon and its relevance to the political vicissitudes of representation within liberalism. It aims to complicate prevailing frameworks for addressing the problems of liberalism, representation and

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24

Kerr, Gregory P., and Joe J. Hanan. "Leaching of Container Media." Journal of the American Society for Horticultural Science 110, no. 4 (1985): 474–80. http://dx.doi.org/10.21273/jashs.110.4.474.

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Abstract Leaching of salt from container media was investigated by means of the miscible displacement theory for 6 peat-perlite-glass bead combinations plus 4 other mixes. Columns were salinized with 15 meq 1−1 each CaCl2 and NaCl, then allowed to equilibrate. Electrical conductivity of the effluent was recorded as columns were leached, using 1 cm constant water head, with solutions of 1, 4, or 7 meq 1−1 each of CaCl2 and NaCl. The replacement efficiency of the soil solution by the leaching solution increased as glass bead content increased. Replacement efficiency of the soil solution had high

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25

Chen, Q., M. G. G. Gerritsen, and A. R. R. Kovscek. "Modeling Foam Displacement with the Local-Equilibrium Approximation: Theory and Experimental Verification." SPE Journal 15, no. 01 (2010): 171–83. http://dx.doi.org/10.2118/116735-pa.

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Summary The gas-mobility-control aspects of foamed gas make it highly applicable for improved oil recovery. Gas-bubble size, often referred to as foam texture, determines gas-flow behavior in porous media. A population-balance model has been developed previously for modeling foam texture and flow in porous media. The model incorporates pore-level mechanisms of foam-bubble generation, coalescence, and transport. Here, we propose a simplified foam model to reduce computational costs. The formulation is based on the assumption of local equilibrium of foam generation and coalescence and is applica

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26

Chebakov, Mikhail I., Elena M. Kolosova, and Maria D. Datcheva. "Contact Interaction of a Rigid Stamp and a Porous Elastic Cylinder of Finite Dimensions." Mathematics 13, no. 1 (2024): 104. https://doi.org/10.3390/math13010104.

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This article investigates an axisymmetric contact problem involving the interaction between a rigid cylindrical stamp and a poroelastic cylinder of finite dimensions, based on the Cowin–Nunziato theory of media with voids. The stamp is assumed to have a flat base and to be in frictionless contact with the cylinder. The cylinder, in turn, rests on a rigid base without friction, with no normal displacements or tangential stresses on its lateral surface. Under an applied vertical force, the stamp undergoes displacement, compressing the poroelastic cylinder. The mathematical formulation of this pr

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27

Belemou, R., A. Sbitti, J. J. Marigo, and A. Tsouli. "Homogenization of subwavelength free stratified edge of viscoelastic media including finite size effect." Mathematical Modeling and Computing 10, no. 1 (2023): 10–29. http://dx.doi.org/10.23939/mmc2023.01.010.

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This paper proposes the homogenization for a stratified viscoelastic media with free edge. We consider the effect of two-dimensional periodically stratified slab over a semi-infinite viscoelastic ground on the propagation of shear waves hitting the interface. Within the harmonic regime, the second order homogenization and matched-asymptotic expansions method is employed to derive an equivalent anisotropic slab associated with effective boundary and jump conditions for the displacement and the normal stress across an interface. The reflection coefficients and the displacement fields are obtaine

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Vidales, A. M., J. L. Riccardo, and G. Zgrablich. "Immiscible Displacement at Pore Level for Correlated Porous Media." International Journal of Modern Physics C 09, no. 06 (1998): 837–49. http://dx.doi.org/10.1142/s0129183198000777.

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Immiscible displacement at pore level on a three-dimensional correlated porous network is simulated allowing flow of the wetting phase along crevices of the pore walls (possibility of snap-off in throats) and advance through the centers of the pore space with different pore and throat filling conditions, leading to a cooperative filling. When these two mechanisms compete, different patterns arise. We study the effect of the correlation strength on the onset of each pattern. We do not take buoyancy forces into account.

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29

Weijermars, Ruud, and Mahmood Ettehad. "Displacement field potentials for deformation in elastic Media: Theory and application to pressure-loaded boreholes." Applied Mathematics and Computation 340 (January 2019): 276–95. http://dx.doi.org/10.1016/j.amc.2018.08.029.

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Marin, Marin, Aatef Hobiny, and Ibrahim Abbas. "The Effects of Fractional Time Derivatives in Porothermoelastic Materials Using Finite Element Method." Mathematics 9, no. 14 (2021): 1606. http://dx.doi.org/10.3390/math9141606.

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In this work, a new model for porothermoelastic waves under a fractional time derivative and two time delays is utilized to study temperature increments, stress and the displacement components of the solid and fluid phases in porothermoelastic media. The governing equations are presented under Lord–Shulman theory with thermal relaxation time. The finite element method has been adopted to solve these equations due to the complex formulations of this problem. The effects of fractional parameter and porosity in porothermoelastic media have been studied. The numerical outcomes for the temperatures

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Maghoul, Pooneh, and Behrouz Gatmiri. "Theory of a Time Domain Boundary Element Development for the Dynamic Analysis of Coupled Multiphase Porous Media." Journal of Multiscale Modelling 08, no. 03n04 (2017): 1750007. http://dx.doi.org/10.1142/s175697371750007x.

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This paper presents an advanced formulation of the time-domain two-dimensional (2D) boundary element method (BEM) for an elastic, homogeneous unsaturated soil subjected to dynamic loadings. Unlike the usual time-domain BEM, the present formulation applies a convolution quadrature which requires only the Laplace-domain instead of the time-domain fundamental solutions. The coupled equations governing the dynamic behavior of unsaturated soils ignoring contributions of the inertia effects of the fluids (water and air) are derived based on the poromechanics theory within the framework of a suction-

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Chou, So-Hsiang, and Qian Li. "Mixed finite element methods for compressible miscible displacement in porous media." Mathematics of Computation 57, no. 196 (1991): 507. http://dx.doi.org/10.1090/s0025-5718-1991-1094942-7.

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Carpenter, Chris. "Physics-Informed Neural Networks Help Predict Fluid Flow in Porous Media." Journal of Petroleum Technology 74, no. 07 (2022): 52–54. http://dx.doi.org/10.2118/0722-0052-jpt.

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This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 203033, “Prediction of Fluid Flow in Porous Media Using Physics-Informed Neural Networks,” by Muhammad M. Almajid, SPE, and Moataz O. Abu-Alsaud, SPE, Saudi Aramco. The paper has not been peer reviewed. The authors of the complete paper write that the realm of reservoir engineering is considered to belong to the small-data regime because of the complex physical systems involved and the inherent uncertainty of the problems. The objective of the paper is to present a physics-informed neural network (

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Müllner, András. "Displacements. Contexts for a Participatory Media Project." Acta Universitatis Sapientiae, Film and Media Studies 23, no. 1 (2023): 86–109. http://dx.doi.org/10.2478/ausfm-2023-0005.

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Abstract This paper presents a participatory film intervention focused on young people, which was held within the framework of a grant coordinated by the Minor Media/Culture Research Centre and took place in the form of a summer camp in 2021. After revisiting some historical examples and definitions of participatory film, the author focuses on the concept of displacement as used in film theory and psychology, which he attempts to redefine and thereby reverse its negative connotations. The author analyses the catalyst method, one of the various forms of implementing participatory video as a vis

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Ahmadi-Sénichault, A., V. Canseco, N. Sefrioui-Chaibainou, A. Omari, and H. Bertin. "Displacement of Colloidal Dispersions in Porous Media: Experimental & Numerical Approaches." Diffusion Foundations 7 (June 2016): 53–68. http://dx.doi.org/10.4028/www.scientific.net/df.7.53.

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The main objective of this paper is to give more insight on colloids deposition and re-entrainment in presence of a rough surface. Experiments on retention and release of colloids in a porous medium are first presented. The influence of physicochemical and hydrodynamic conditions is investigated. The experimental results cannot be qualitatively interpreted using the DLVO theory and knowledges at pore scale are then needed. A 3D numerical simulation approach at the pore scale is therefore proposed where the motion of colloids is solved in presence of collector surfaces bearing various kinds of

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Zhou, Tai Quan. "Stochastic Prediction for Frost Heave Effect of a Subway Tunnel." Applied Mechanics and Materials 353-356 (August 2013): 1451–55. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.1451.

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Horizontal freezing induces ground frost heave and ground displacement happens. Excessive uneven displacement or deformation may be dangerous to the surrounding building. The stratum that a Nanjing subway tunnel will traverse through is the soft and silt clay. The artificial freezing construction method is proposed to help the tunnel to traverse through the worse stratum. To control the ground building deformation and displacement due to the ground frost heave, the frost heave effect for the artificial freezing construction should be predicted before the construction process. The stochastic me

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Ho, Chaang-Iuan, and Jui-Yuan Chu. "Effects of Displacement-reinforcement on Facebook, Youtube and Instagram Use: Student and Staff inter-generational differences." 11th GLOBAL CONFERENCE ON BUSINESS AND SOCIAL SCIENCES 11, no. 1 (2020): 49. http://dx.doi.org/10.35609/gcbssproceeding.2020.11(49).

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Since the launch of Facebook (FB) in 2006, social media participation has grown rapidly during the past decade. Although FB and YouTube (YT) still occupy the most prominent positions in the social media landscape, Instagram (IG) is rapidly gaining ground, and now has a market share of 35%. It is not uncommon for users to have more than one account. New social media platforms have been developed and gained some popularity, some major concerns have been raised. Displacement–reinforcement effects, such as changes in attitude and loyalty, may appear in relation to both new and old media. In additi

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Silva,, Romulo, and Viatcheslav Priimenko,. "AN ANALYTICAL SOLUTION OF THE SATURATED AND INCOMPRESSIBLE POROELASTIC MODEL FOR TRANSIENT WAVE PROPAGATION." Eurasian Journal of Mathematical and Computer Applications 9, no. 2 (2021): 12–38. http://dx.doi.org/10.32523/2306-6172-2021-9-2-12-38.

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A transient wave propagation model is provided as a consequence of a new theory of porous media and wave propagation in saturated poroelastic media. This theory, in the linear case, becomes to be equivalent to the theory proposed by de Boer, R., Ehlers, W. & Liu, Z. in 1993. It leads to a model for the 1-D porous saturated column problem, which after the appropriate establishment of boundary and initial conditions, can be solved analytically with the aid of the Laplace transform concerning time. Numerical experiments are performed to illustrate the behavior of constituents displacement fie

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Batool, Sumera, Nimra Zaffer, and Saima Kausar. "Real vs Virtual Identity: A Contemporary Analysis of Social Displacement Accelerating Anti-social Behavior Among Youth." Journal of Policy Research 9, no. 2 (2023): 750–59. http://dx.doi.org/10.61506/02.00010.

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This study investigated the role of social media in creating anti-social behavior among active social media users. The researchers conducted survey to understand the difference between the real and virtual personalities of social media users. 256 students — aged 17 to 25 years — enrolled in different universities of Lahore were reached out conveniently to get their responses on 22 closed ended questions of questionnaire. The Social Displacement Theory guided the researchers to analyze the obtained data on SPSS to interpret their communication preferences in virtual and real life. The chi-squar

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Liu, Wei. "A Finite Difference Scheme for Compressible Miscible Displacement Flow in Porous Media on Grids with Local Refinement in Time." Abstract and Applied Analysis 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/521835.

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Considering two-dimensional compressible miscible displacement flow in porous media, finite difference schemes on grids with local refinement in time are constructed and studied. The construction utilizes a modified upwind approximation and linear interpolation at the slave nodes. Error analysis is presented in the maximum norm and numerical examples illustrating the theory are given.

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Liu, Jun Qiao, Hui Qin Duan, and Xing Li. "Boundary Element Method for Horizontally Polarized Shear Wave Scattering by an Elliptical Cavity in Orthotropic Graded Saturated Porous Media." Applied Mechanics and Materials 638-640 (September 2014): 412–15. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.412.

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The shear wave scattering due to an elliptical cavity in an infinitely long strip of orthotropic graded saturated porous (OGSP) media is studied with the boundary element method (BEM). The shear modulus and the mass density of the OGSP are assumed to have exponential forms. Using Biot's theory, the governing equations are developed for OGSP. The fundamental function is obtained by separating variables in terms of the Dirac delta function. A system of linear equations describing the displacement on the ellipse is obtained by applying the linear BEM. The numerical results for the normalized boun

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Wu, Chengda, and Weiwei Sun. "New Analysis of Galerkin FEMs for Miscible Displacement in Porous Media." Journal of Scientific Computing 80, no. 2 (2019): 903–23. http://dx.doi.org/10.1007/s10915-019-00963-w.

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Sanati, Ali, and Mohammad Yousefi Khoshdaregi. "Experimental investigation of dispersion phenomenon in a fractured porous medium." International Journal of Engineering & Technology 4, no. 1 (2015): 209. http://dx.doi.org/10.14419/ijet.v4i1.4136.

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Dispersion of fluids flowing through porous media is an important phenomenon in miscible displacement. Dispersion causes instability of miscible displacement flooding; therefore, to obtain and maintain the miscibility zone, the porous medium dispersivity should be considered in displacing fluid volume calculation. Many works have been carried out to investigate the dispersion phenomenon in porous media in terms of theory, laboratory experiments and modeling. What is still necessary is to study the effects of presence of fracture in a porous medium on dispersion coefficient or dispersivity. In

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Hussain, Tanveer, Iqra Imtiaz, and Ashraf Iqbal. "Family Relations after the Emergence of Social Media: A Comparative Analysis of Single-Family and Joint Family Systems." Global Regional Review V, no. I (2020): 544–51. http://dx.doi.org/10.31703/grr.2020(v-i).57.

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This study's main aim is to explore the impact of social media on family ties. A quantitative method of survey is used to gather data. The survey is conducted both face-to-face and through emails. One hundred respondent take part in this research through a survey while media displacement theory implemented on present research. Statistics indicate that people living in a single-family group use more social media than people living together. Findings also say people are using social media to escape family problems. There is a small disparity between the people who live in both family systems on

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Tang, Jinyu, Pablo Castañeda, Dan Marchesin, and William R. Rossen. "Three‐Phase Fractional‐Flow Theory of Foam‐Oil Displacement in Porous Media With Multiple Steady States." Water Resources Research 55, no. 12 (2019): 10319–39. http://dx.doi.org/10.1029/2019wr025264.

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Bürkle, David, and Mario Ohlberger. "Adaptive finite volume methods for displacement problems in porous media." Computing and Visualization in Science 5, no. 2 (2002): 95–106. http://dx.doi.org/10.1007/s00791-002-0091-7.

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Guo, Hui, Fan Yu, and Yang Yang. "Local Discontinuous Galerkin Method for Incompressible Miscible Displacement Problem in Porous Media." Journal of Scientific Computing 71, no. 2 (2016): 615–33. http://dx.doi.org/10.1007/s10915-016-0313-7.

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Lu, Xu Jing, Yang Jun Han, Zhi Wen Cui, Chun Xia Wang, Ke Xie Wang, and He Feng Dong. "Fast Compressional Wave Scattering from Cylinder in Porous Media." Applied Mechanics and Materials 170-173 (May 2012): 537–40. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.537.

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A mathematical model is presented to describe the scattering of a fast compressional plane wave (fast P-wave) incident at an arbitrary angle on isotropic cylinder embedded in a fluid-saturated porous medium. The expressions of components of solid and filtration displacement, pore fluid pressure and stress tensor in porous medium are obtained by potential function using the Biot’s theory and that of isotropic cylinder are also given. We investigate the properties of the form function of a backscatted fast P-wave for cement and steel cylinder system. It shows the influence of incident angle on f

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Abo-Dahab, S. M. "Propagation of p-, T-, and SV-waves at the interface between two solid–liquid media with magnetic field and initial stress in the context of two thermoelastic theories." Canadian Journal of Physics 93, no. 7 (2015): 807–23. http://dx.doi.org/10.1139/cjp-2014-0193.

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In this paper, we study the effects of magnetic field and initial stress on p-, T-, and SV-waves propagation. We investigated the problem of reflection and refraction of thermoelastic waves at a magnetized solid–liquid interface in the presence of initial stress. In the context of classical theory and Green–Lindsay theory of thermoelasticity, the problem has been solved. The boundary conditions applied at the interface are: (i) displacement continuity; (ii) vanishing tangential displacement; (iii) continuity of normal force per unit initial area; (iv) tangential force per unit initial area mus

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Yang, Zhiquan, Dan Zhang, Chaoyue Li, et al. "Column Penetration and Diffusion Mechanism of Bingham Fluid Considering Displacement Effect." Applied Sciences 12, no. 11 (2022): 5362. http://dx.doi.org/10.3390/app12115362.

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The diffusion progress of grout is hindered by groundwater, which means the diffusion distance cannot reach the designed values required in engineering for water plugging or reinforcement. In this study, based on the generalized Darcy’s law and the continuity equation of steady column penetration, a column diffusion mechanism for Bingham fluid, considering the displacement effect of grout on groundwater, is proposed. This diffusion mechanism is then validated by the penetration grouting experiments that have been previously performed. The influences of the grouting pressure, groundwater pressu

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