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Thematische Bibliographien / Local inhomogeneities / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Local inhomogeneities“

Autor: Grafiati

Veröffentlicht am 25. Mai 2024

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1

Batllo, J., F. Goltsman, D. Kalinin und J. Pous. „Seismic recognition of local inhomogeneities“. Pure and Applied Geophysics PAGEOPH 132, Nr. 4 (Februar 1990): 639–52. http://dx.doi.org/10.1007/bf00876811.

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2

Martseniuk, Yurii P., Yevhen V. Siusko und Yurii V. Kovtun. „Using microwave refraction to determine local inhomogeneities of a rotating plasma“. Nukleonika 68, Nr. 1 (01.03.2023): 19–24. http://dx.doi.org/10.2478/nuka-2023-0003.

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Abstract To determine the local inhomogeneities of a rotating plasma, the method based on microwave refraction was used. The method is based on spectral and correlation analysis of the reflected signals from the rotating plasma layer at normal and inclined microwave incidence. This method allowed us to determine local inhomogeneities of plasma electron density, angles of azimuthal displacement of grooves, and its angular frequency of rotation. Using an additional 4th horn antenna, in contrast to previous works, it was possible to find and analyze two regions with azimuthal inhomogeneities in the rotating plasma. Analysis of the reflected signals shows the presence of four grooves, and the angular frequency of rotation ω = 1.16 × 104 rad/s was also determined.

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3

Seppenwoolde, Jan-Henry, Mathilda van Zijtveld und Chris J. G. Bakker. „Spectral characterization of local magnetic field inhomogeneities“. Physics in Medicine and Biology 50, Nr. 2 (07.01.2005): 361–72. http://dx.doi.org/10.1088/0031-9155/50/2/013.

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4

Tkeshelashvili, Lasha. „Discrete optical soliton scattering by local inhomogeneities“. Photonics and Nanostructures - Fundamentals and Applications 11, Nr. 1 (Februar 2013): 95–101. http://dx.doi.org/10.1016/j.photonics.2012.10.001.

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5

Duvall, T. L., und A. G. Kosovichev. „New Developments in Local Area Helioseismology“. Symposium - International Astronomical Union 203 (2001): 159–66. http://dx.doi.org/10.1017/s0074180900218974.

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Several techniques are used to study local areas in helioseismology, including time-distance helioseismology, acoustic imaging/holography, and ring diagram analysis. These techniques can be used to study flows, magnetic fields, and temperature inhomogeneities. The “local” area studied can be as small as a supergranule, or as large as the entire convection zone in the case of meridional circulation as studied by Giles and colleagues. Active regions have been studied with some interesting results, with complicated flow patterns below sunspots and detectable sound speed inhomogeneities in the 10 Mm below the spots. Another interesting result is the detection of sunspots on the back side of the Sun by Lindsey and Braun using the holography technique. A confirmation of their result using the time-distance technique is presented.

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6

Kushch, Volodymyr I., Igor Sevostianov und Albert Giraud. „Local fields and effective conductivity tensor of ellipsoidal particle composite with anisotropic constituents“. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 473, Nr. 2207 (November 2017): 20170472. http://dx.doi.org/10.1098/rspa.2017.0472.

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An accurate semi-analytical solution of the conductivity problem for a composite with anisotropic matrix and arbitrarily oriented anisotropic ellipsoidal inhomogeneities has been obtained. The developed approach combines the superposition principle with the multipole expansion of perturbation fields of inhomogeneities in terms of ellipsoidal harmonics and reduces the boundary value problem to an infinite system of linear algebraic equations for the induced multipole moments of inhomogeneities. A complete full-field solution is obtained for the multi-particle models comprising inhomogeneities of diverse shape, size, orientation and properties which enables an adequate account for the microstructure parameters. The solution is valid for the general-type anisotropy of constituents and arbitrary orientation of the orthotropy axes. The effective conductivity tensor of the particulate composite with anisotropic constituents is evaluated in the framework of the generalized Maxwell homogenization scheme. Application of the developed method to composites with imperfect ellipsoidal interfaces is straightforward. Their incorporation yields probably the most general model of a composite that may be considered in the framework of analytical approach.

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7

Holý, Václav, Marcin Kryśko und Michał Leszczyński. „Diffuse X-ray scattering from local chemical inhomogeneities in InGaN layers“. Journal of Applied Crystallography 51, Nr. 4 (12.06.2018): 969–81. http://dx.doi.org/10.1107/s1600576718007173.

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Diffuse X-ray scattering from random chemical inhomogeneities in epitaxial layers of InGaN/GaN was simulated using linear elasticity theory and kinematical X-ray diffraction. The simulation results show the possibility of determining the r.m.s. deviations of the local In content and its lateral correlation length from reciprocal-space maps of the scattered intensity. The reciprocal-space distribution of the intensity scattered from inhomogeneities is typical and it can be distinguished from other sources of diffuse scattering such as threading or misfit dislocations.

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8

REYNOLDS, JOSEPH P., GERALD J. IAFRATE und JUN HE. „BLOCH DYNAMICS IN SPATIALLY LOCAL INHOMOGENEOUS ELECTRIC FIELDS“. International Journal of High Speed Electronics and Systems 11, Nr. 02 (Juni 2001): 425–53. http://dx.doi.org/10.1142/s0129156401000903.

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The influence of local inhomogeneities on the electric field dependent properties of Bloch electrons is studied. The homogeneous electric field is described through the use of the vector potential, and the instantaneous Wannier functions of the homogeneous field dependent Hamiltonian are used as bases states to depict Bloch dynamics and properties. Model examples are treated using Slater-Koster inhomogeneities and nearest-neighbor tight-binding band structure in a one dimensional, single-band analysis. Detailed analysis is presented for the special case of a constant electric field; here the influence of localization due to the presence of the electric field is shown to clearly affect the energy spectrum of the Bloch electron for a single and double impurity configuration.

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9

Cabaço, M. I., M. Besnard, T. Tassaing und Y. Danten. „Local density inhomogeneities detected by Raman scattering in supercritical hexafluorobenzene“. Pure and Applied Chemistry 76, Nr. 1 (01.01.2004): 141–46. http://dx.doi.org/10.1351/pac200476010141.

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The influence of the local density inhomogeneities in supercritical hexafluorobenzene C6F6 has been assessed using Raman spectroscopy. The polarized and depolarized profiles associated with the "breathing" mode of the molecule has been analyzed for the fluid in a wide density range, namely under isothermal conditions. The evolution upon the density of the band center position of the isotropic profile along the near-critical isotherm showed an anomalous behavior, characterized by a plateau in the density range (0.6 < ρ* = ρ/ρC < 1.3), which is not observed along the isotherm T* ~ 1.11. It has been interpreted as due to the existence of local-density inhomogeneities and the density enhancement factor has been evaluated. The rotational dynamics of the main symmetry axis of the molecule is governed by a diffusional process. The rotational correlation time τ2R exhibits an anomalous behavior (plateau regime) for both isotherms. These findings put in evidence the existence of local density inhomogeneities in a pure fluid and show that Raman spectroscopy is well adapted to investigate these phenomena.

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10

Rose, M. A., J. Barnett, D. Wendland, F. V. E. Hensling, J. M. Boergers, M. Moors, R. Dittmann, T. Taubner und F. Gunkel. „Local inhomogeneities resolved by scanning probe techniques and their impact on local 2DEG formation in oxide heterostructures“. Nanoscale Advances 3, Nr. 14 (2021): 4145–55. http://dx.doi.org/10.1039/d1na00190f.

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Using c-AFM and s-SNOM, we show the influence of local inhomogeneities on the LAO/STO 2DEG formation by mapping its distribution. The nanoscopic arrangement of insulating regions alters the conductive behavior down to low temperatures.

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11

Zhou, Yu, Wei Guo Zhang und Li Feng Li. „A Variational Level Set Model Based on Local Clustering for Image Segmentation“. Applied Mechanics and Materials 556-562 (Mai 2014): 4797–801. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.4797.

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For images with intensity inhomogeneities that can’t get accurate segmentation results, this paper proposes a variational level set model based on local clustering. First,based on the model of images with intensity inhomogeneities, we use the K-mean clustering algorithm for intensity clustering in a neighborhood of each point of images with intensity inhomogeneities, and define a local clustering criterion function for the image intensities in the neighborhood. Then this local clustering criterion function is then integrated with respect to the neighborhood center to give a global criterion of image segmentation. This criterion defines an energy function as a local intensity fitting term in the level set model. By minimizing this energy, our method is able to get the accurate image segmentation. The image segmentation results prove that our model in the aspect of segmenting images with intensity inhomogeneity is better than piecewise constant (PC) models, and the segmentation efficiency is higher than region-scalable fitting (RSF) model.

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Selezov, I. T., V. A. Tkachenko und S. A. Savchenko. „On Water Wave Suppression by Local Bottom Inhomogeneities“. International Journal of Fluid Mechanics Research 34, Nr. 6 (2007): 589–98. http://dx.doi.org/10.1615/interjfluidmechres.v34.i6.90.

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13

Galieva, L. M., und Yu P. Gupalo. „Interaction of local inhomogeneities of a fluidized bed“. Fluid Dynamics 26, Nr. 1 (1991): 35–41. http://dx.doi.org/10.1007/bf01050110.

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14

Klingler, M., W. F. Chu und W. Weppner. „In-situ formation of local inhomogeneities in semiconductors“. Ionics 3, Nr. 5-6 (September 1997): 412–19. http://dx.doi.org/10.1007/bf02375718.

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15

Ferlay, Nicolas, Harumi Isaka, Philip Gabriel und Albert Benassi. „Multiresolution Analysis of Radiative Transfer through Inhomogeneous Media. Part II: Validation and New Insights“. Journal of the Atmospheric Sciences 63, Nr. 4 (01.04.2006): 1213–30. http://dx.doi.org/10.1175/jas3679.1.

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Abstract The multiresolution radiative transfer equations of Part I of this paper are solved numerically for the case of inhomogeneous model clouds using Meyer’s basis functions. After analyzing the properties of Meyer’s connection coefficients and effective coupling operators (ECOs) for two examples of extinction functions, the present approach is validated by comparisons with Spherical Harmonic Discrete Ordinate Method (SHDOM) and Monte Carlo codes, and a preliminary analysis of the local-scale coupling between the cloud inhomogeneities and the radiance fields is presented. It is demonstrated that the contribution of subpixel-scale cloud inhomogeneities to pixel-scale radiation fields may be very important and that it varies considerably as a function of local cloud inhomogeneities.

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16

Zolotorevsky, N., S. Panpurin, A. Kazakov, O. Pakhomova und S. Petrov. „Local texture of microstructural inhomogeneities in rolled microalloyed steel“. IOP Conference Series: Materials Science and Engineering 82 (24.04.2015): 012109. http://dx.doi.org/10.1088/1757-899x/82/1/012109.

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17

Kehrwald, Dirk, Paul R. Shearing, Nigel P. Brandon, Puneet K. Sinha und Stephen J. Harris. „Local Tortuosity Inhomogeneities in a Lithium Battery Composite Electrode“. Journal of The Electrochemical Society 158, Nr. 12 (2011): A1393. http://dx.doi.org/10.1149/2.079112jes.

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18

Koon, Daniel W., Fei Wang, Dirch Hjorth Petersen und Ole Hansen. „Sensitivity of resistive and Hall measurements to local inhomogeneities“. Journal of Applied Physics 114, Nr. 16 (28.10.2013): 163710. http://dx.doi.org/10.1063/1.4826490.

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19

Ollikainen, Jorma O., Marko Vauhkonen, Pasi A. Karjalainen und Jari P. Kaipio. „Effects of local skull inhomogeneities on EEG source estimation“. Medical Engineering & Physics 21, Nr. 3 (April 1999): 143–54. http://dx.doi.org/10.1016/s1350-4533(99)00038-7.

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20

Kubenko, V. D., und N. A. Pelykh. „Vibrofluidization behavior of a fine powder containing local inhomogeneities“. Soviet Applied Mechanics 27, Nr. 2 (Februar 1991): 215–22. http://dx.doi.org/10.1007/bf00887814.

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21

Chassé, Walter, Sandra Schlögl, Gisbert Riess und Kay Saalwächter. „Inhomogeneities and local chain stretching in partially swollen networks“. Soft Matter 9, Nr. 29 (2013): 6943–54. http://dx.doi.org/10.1039/c3sm50195g.

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22

Asai, Makoto, Takuya Katashima, Ung-il Chung, Takamasa Sakai und Mitsuhiro Shibayama. „Correlation between Local and Global Inhomogeneities of Chemical Gels“. Macromolecules 46, Nr. 24 (09.12.2013): 9772–81. http://dx.doi.org/10.1021/ma400486h.

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23

Moroz, A. V. „A method of reconstructing local parameters of radial inhomogeneities“. Radiophysics and Quantum Electronics 29, Nr. 7 (Juli 1986): 589–94. http://dx.doi.org/10.1007/bf01034147.

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24

Yahil, A. „Contributions to the Local Gravitational Field from beyond the Local Supercluster“. Symposium - International Astronomical Union 117 (1987): 435–43. http://dx.doi.org/10.1017/s0074180900150673.

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IRAS 60μ sources are used to map the local (≲200h−1 Mpc, Ho =100h km s−1 Mpc−1) gravitational field, and to determine its dipole component, on the assumption that the infrared radiation traces the matter. The dipole moment is found to point in the direction of the anisotropy of the microwave background radiation. Comparison of the two anisotropies, using linear perturbation theory, yields an estimate of the cosmological density parameter, Ω =0.85±0.16, with nonlinear effects increasing Ωo by ∼15%. The quadrupolar tidal field within the Local Supercluster, due presumably to the same density inhomogeneities, is detected in a kinematical study of the velocity field.

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25

Gruber, Sebastian, Maximilian Thomik, Nicole Vorhauer-Huget, Lukas Hans, Evangelos Tsotsas und Petra Foerst. „The Influence of Local Microstructure Inhomogeneities on Local Drying Kinetics during Freeze-Drying“. Pharmaceutics 14, Nr. 10 (07.10.2022): 2132. http://dx.doi.org/10.3390/pharmaceutics14102132.

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Freeze-drying is a gentle drying technique to dry high value products, such as pharmaceuticals, without impacting the quality of the product. However, this method is very time and cost intensive. It is known that larger pores reduce the duration of primary drying due to facilitated mass transport. However, next to the pore size, other structural parameters exist whose influence on drying kinetics is still unknown. Therefore, the aim of this article is to investigate the influence of the microstructure (pore size, shape and orientation) on local primary drying kinetics. In the study, freeze-drying experiments on maltodextrin and sucrose solutions (c1 = 0.05 and c2 = 0.15 w/w) were carried out in a lyomicroscope. Two-dimensional images were recorded during the whole drying process and in the dry state and analyzed on the movement of the sublimation front, pore size, orientation and shape. Different microstructures were created by using different freezing parameters, namely two different cooling rates and solid concentrations. It could be shown that for pores with a high aspect ratio, the pore orientation was more important for the drying kinetics than the pore size, while for pores with a lower aspect ratio the pore size was the decisive parameter.

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Muhlestein, Michael B., und Michael R. Haberman. „A micromechanical approach for homogenization of elastic metamaterials with dynamic microstructure“. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, Nr. 2192 (August 2016): 20160438. http://dx.doi.org/10.1098/rspa.2016.0438.

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An approximate homogenization technique is presented for generally anisotropic elastic metamaterials consisting of an elastic host material containing randomly distributed heterogeneities displaying frequency-dependent material properties. The dynamic response may arise from relaxation processes such as viscoelasticity or from dynamic microstructure. A Green's function approach is used to model elastic inhomogeneities embedded within a uniform elastic matrix as force sources that are excited by a time-varying, spatially uniform displacement field. Assuming dynamic subwavelength inhomogeneities only interact through their volume-averaged fields implies the macroscopic stress and momentum density fields are functions of both the microscopic strain and velocity fields, and may be related to the macroscopic strain and velocity fields through localization tensors. The macroscopic and microscopic fields are combined to yield a homogenization scheme that predicts the local effective stiffness, density and coupling tensors for an effective Willis-type constitutive equation. It is shown that when internal degrees of freedom of the inhomogeneities are present, Willis-type coupling becomes necessary on the macroscale. To demonstrate the utility of the homogenization technique, the effective properties of an isotropic elastic matrix material containing isotropic and anisotropic spherical inhomogeneities, isotropic spheroidal inhomogeneities and isotropic dynamic spherical inhomogeneities are presented and discussed.

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27

Lee, Kung Yen, Wen Zhou Chen und Michael A. Capano. „The Impact of Chemical-Mechanical Polishing on Defective 4H-SiC Schottky Barrier Diodes“. Materials Science Forum 600-603 (September 2008): 827–30. http://dx.doi.org/10.4028/www.scientific.net/msf.600-603.827.

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In this article, the correlation of surface morphological defects and barrier-height inhomogeneities with the electrical characteristics of defective 4H-SiC Schottky barrier diodes (SBDs) before and after chemical-mechanical polishing (CMP) is investigated. The forward characteristics, an ideality factor and a single barrier height of a SBD, remain the same after CMP, so that CMP does not affect SBD characteristics. Most barrier-height inhomogeneities are eliminated or improved after CMP. Therefore, leakage current induced by barrier-height inhomogeneities are improved by CMP as well. In addition, about 40% of SBDs with carrots inside the active areas exhibits double barriers before CMP. This excludes that carrots are a cause of barrier-height inhomogeneities. In reverse-bias mode, CMP reduces reverse leakage current at low bias and increases breakdown voltage due to the reduction of thermionic field emission and elimination of local enhanced electric fields.

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Tiribocchi, A., F. Bonaccorso, M. Lauricella, S. Melchionna, A. Montessori und S. Succi. „Curvature dynamics and long-range effects on fluid–fluid interfaces with colloids“. Soft Matter 15, Nr. 13 (2019): 2848–62. http://dx.doi.org/10.1039/c8sm02396d.

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29

Jiang, Xiao Liang, Bai Lin Li, Jian Ying Yuan und Xiao Liang Wu. „Active Contour Driven by Local Gaussian Distribution Fitting and Local Signed Difference Based on Local Entropy“. International Journal of Pattern Recognition and Artificial Intelligence 30, Nr. 03 (22.02.2016): 1655011. http://dx.doi.org/10.1142/s0218001416550119.

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Intensity inhomogeneity often causes considerable difficulties in image segmentation. In order to tackle this problem, we propose a novel region-based active contour model in a variational level set formulation. We first define a data fitting energy with a local Gaussian distribution fitting (LGDF) term, which induces a local force to attract the contour and stops it at object boundaries, and a local signed difference (LSD) term based on local entropy, which possesses both local separability and global consistency. This energy is then incorporated into a level set formulation with a level set regularization term that is necessary for accurate computation in the corresponding level set method. Experimental results show that the proposed model can not only segment images with intensity inhomogeneities and weak boundaries but also be robust to the noise, initial contours.

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Botev, Emil, und Edelvays Spassov. „Deep velocity structure of crust and upper mantle in the central parts of Balkan Region“. Geologica Balcanica 20, Nr. 2 (30.04.1990): 71–79. http://dx.doi.org/10.52321/geolbalc.20.2.71.

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Some velocity characteristics of the crust and upper mantle in the central part of the Balkan region are studied on the basis of about 1000 local and teleseismic earthquakes, registered on the 32 seismic stations. An approach for estimation of the large anisotropic structures effects is used together with the general consideration about the connection between the time residuals and velocity inhomogeneities. The main features of the inhomogeneities in the crust and upper mantle are drscussed in relation with some gravity, heat flow and seismotectonic data. The distribution of the crustal inhomogeneities in general corresponds to the configuration of the morphotectonic structures in Bulgaria. The subcrustal inhomogeneities are discordant with the surface structures, but their orientation is in coincidence with the Trans-Balkan seismolineament system. This fact indicates that the crustal seismicity in the region is probably controlled by the upper mantle structures. The high-velocity structures in the deep upper mantle beneath the Rhodope massif probably represent a paleosubduction at a depth more than 300 km.

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31

Белашов, А. В., Ч. Ж. Чжень und Н. В. Петров. „О возможности исследования доли неоднородностей оптических нелинейных сред с помощью осевой цифровой голографии с временным разрешением“. Журнал технической физики 91, Nr. 5 (2021): 846. http://dx.doi.org/10.21883/jtf.2021.05.50699.340-20.

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An approach to determining the fraction of local inhomogeneities nonlinear refractive index n2 in a transparent medium is considered. Data recording was performed using inline digital holography with femtosecond time resolution, where a set of probe beam inline digital holograms in the Fresnel diffraction zone to be recorded at various time delays between the pump and probe pulses. Digital holograms contain diffraction patterns that have information about the induced degenerate non-collinear phase modulation formed in the presence of nonlinear refractive index inhomogeneities. The developed algorithm is based on the calculation of the diffraction patterns Fourier spectrum and analysis of the intensity at zero spatial frequency. The proposed method has been validated in numerical modeling. An approach to determining the fraction of local inhomogeneities nonlinear refractive-index coefficient n2 in a transparent medium is considered. Data recording was performed using time-resolved inline digital holography, where a set of inline digital holograms in the Fresnel diffraction zone to be recorded in a probe beam at various time delays between the pump and probe pulses. Digital holograms contain diffraction patterns that have information about the induced degenerate noncollinear phase modulation formed in the presence of nonlinear refractive index inhomogeneities. The developed algorithm is based on the calculation of the diffraction patterns Fourier spectrum and analysis of the intensity at zero spatial frequency. The proposed method has been validated in numerical simulation.

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32

Белашов, А. В., Ч. Ж. Чжень und Н. В. Петров. „О возможности исследования доли неоднородностей оптических нелинейных сред с помощью осевой цифровой голографии с временным разрешением“. Журнал технической физики 91, Nr. 5 (2021): 846. http://dx.doi.org/10.21883/jtf.2021.05.50699.340-20.

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An approach to determining the fraction of local inhomogeneities nonlinear refractive index n2 in a transparent medium is considered. Data recording was performed using inline digital holography with femtosecond time resolution, where a set of probe beam inline digital holograms in the Fresnel diffraction zone to be recorded at various time delays between the pump and probe pulses. Digital holograms contain diffraction patterns that have information about the induced degenerate non-collinear phase modulation formed in the presence of nonlinear refractive index inhomogeneities. The developed algorithm is based on the calculation of the diffraction patterns Fourier spectrum and analysis of the intensity at zero spatial frequency. The proposed method has been validated in numerical modeling. An approach to determining the fraction of local inhomogeneities nonlinear refractive-index coefficient n2 in a transparent medium is considered. Data recording was performed using time-resolved inline digital holography, where a set of inline digital holograms in the Fresnel diffraction zone to be recorded in a probe beam at various time delays between the pump and probe pulses. Digital holograms contain diffraction patterns that have information about the induced degenerate noncollinear phase modulation formed in the presence of nonlinear refractive index inhomogeneities. The developed algorithm is based on the calculation of the diffraction patterns Fourier spectrum and analysis of the intensity at zero spatial frequency. The proposed method has been validated in numerical simulation.

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33

Lammers, W. J., M. J. Schalij, C. J. Kirchhof und M. A. Allessie. „Quantification of spatial inhomogeneity in conduction and initiation of reentrant atrial arrhythmias“. American Journal of Physiology-Heart and Circulatory Physiology 259, Nr. 4 (01.10.1990): H1254—H1263. http://dx.doi.org/10.1152/ajpheart.1990.259.4.h1254.

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In isolated superfused left atria of the rabbit, inhomogeneity in conduction was quantified using the activation times measured with a high-density mapping system. At each recording site, the maximal difference with neighboring activation times (i.e., phase difference) was calculated. Local phase differences were plotted in a phase map, revealing the spatial distribution of inhomogeneities in conduction, and from each map a total index of inhomogeneity was calculated. During slow pacing (2 Hz) local differences in conduction velocity, depending on the direction of propagation, were found already. Inhomogeneity in conduction increased significantly during single early premature beats (inhomogeneity index increased from 2.3 to 3.1; P less than 0.001). The application of multiple premature beats further increased inhomogeneity in conduction, whereas rapid pacing induced the highest level of inhomogeneity (inhomogeneity index 5.3; P less than 0.001). An analysis of the spatial distribution of maximal phase differences revealed that during premature beats inhomogeneities in conduction were limited to an area of 6 mm around the point of origin of the premature impulse, whereas during rapid pacing inhomogeneities in conduction were found throughout the whole preparation. Phase maps constructed during the initiation of reentrant tachyarrhythmias showed that reentry occurred at sites with the highest phase differences. Quantification of spatial inhomogeneities in conduction is a useful tool to evaluate the vulnerability of the myocardial substrate for reentrant arrhythmias.

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Kiryanova, K. S., und A. S. Kryukovsky. „Influence of Local Ionospheric Inhomogeneities for Propagation Decameter Radio Waves“. Физические основы приборостроения 1, Nr. 3 (15.09.2012): 19–25. http://dx.doi.org/10.25210/jfop-1203-019025.

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35

Kovtun, Yu V., und Y. V. Siusko. „Determining local inhomogeneities of rotating plasma density via microwave refraction“. Physics Letters A 383, Nr. 31 (November 2019): 125880. http://dx.doi.org/10.1016/j.physleta.2019.125880.

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Chassé, Walter, Sandra Schlögl, Gisbert Riess und Kay Saalwächter. „Correction: Inhomogeneities and local chain stretching in partially swollen networks“. Soft Matter 11, Nr. 21 (2015): 4337–38. http://dx.doi.org/10.1039/c5sm90081f.

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37

Zhou, W. J., M. N. Ichchou und J. M. Mencik. „Analysis of wave propagation in cylindrical pipes with local inhomogeneities“. Journal of Sound and Vibration 319, Nr. 1-2 (Januar 2009): 335–54. http://dx.doi.org/10.1016/j.jsv.2008.05.039.

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38

Gritsch, Martin, Herbert Hutter, Leo Holzer und Stefan Tasch. „Local Ions Distribution Inhomogeneities in Polymer Based Light Emitting Cells“. Microchimica Acta 135, Nr. 3-4 (27.11.2000): 131–37. http://dx.doi.org/10.1007/s006040070002.

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39

Troyan, V. N., und Yu V. Kiselev. „Estimation of reliability of seismic and electromagnetic monitoring in seismic active areas by diffraction tomography“. Natural Hazards and Earth System Sciences 1, Nr. 1/2 (30.06.2001): 69–73. http://dx.doi.org/10.5194/nhess-1-69-2001.

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Abstract. This paper presents the algorithms and results of the numerical simulation of the solution of a 2-D inverse problem on the restoration of seismic parameters and electrical conductivity of local inhomogeneities by the diffraction tomography method based upon the first order Born approximation. The direct problems for the Lame and Maxwell equations are solved by the finite difference method. Restoration of inhomogeneities which are not very weak is implemented with the use of a small number of receivers (source-receiver pairs).

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40

HERRERA, L. „PHYSICAL CAUSES OF ENERGY DENSITY INHOMOGENIZATION AND STABILITY OF ENERGY DENSITY HOMOGENEITY IN RELATIVISTIC SELF-GRAVITATING FLUIDS“. International Journal of Modern Physics D 20, Nr. 09 (31.08.2011): 1689–703. http://dx.doi.org/10.1142/s0218271811019748.

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We identify the factors responsible for the appearance of energy density inhomogeneities in a self-gravitating fluid, and describe the evolution of those factors from an initially homogeneous distribution. It is shown that a specific combination of the Weyl tensor and/or local anisotropy of pressure and/or dissipative fluxes entails the formation of energy density inhomogeneities. Different cases are analyzed in detail and in the particular case of dissipative fluids, the role of relaxational processes as well as nonlocal effects are brought out.

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Dewobroto, N., Nathalie Bozzolo, Pierre Barbéris und Francis Wagner. „Experimental Investigations of Recrystallization Texture Development in Zirconium (Zr702)“. Materials Science Forum 467-470 (Oktober 2004): 453–58. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.453.

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The microstructure and crystallographic texture in zirconium (Zr702) sheets, initially deformed by 80% cold rolling, are investigated at different stages of the primary recrystallization. Inhomogeneities were observed in the deformed microstructure at different scales down to the submicrometer range. The influence of these inhomogeneities on the local recrystallization mechanisms is discussed. The measurement of the orientation of the new grains shows that the nucleation is definitely not oriented. Since the global texture change is very slight, recrystallization by subgrain growth is probably one of the most important mechanism during the recrystallization process in zirconium.

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42

Ekomasov, E. G., R. R. Murtazin, Sh A. Azamatov und A. E. Ekomasov. „Nucleation and evolution of magnetic inhomogeneities of the pulson and 2D soliton type in magnets with local anisotropy inhomogeneities“. Physics of Metals and Metallography 112, Nr. 3 (September 2011): 213–23. http://dx.doi.org/10.1134/s0031918x11030185.

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43

Cadoni, M., und A. P. Sanna. „Emergence of a cosmological constant in anisotropic fluid cosmology“. International Journal of Modern Physics A 36, Nr. 21 (21.07.2021): 2150156. http://dx.doi.org/10.1142/s0217751x21501566.

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In this paper, we investigate anisotropic fluid cosmology in a situation where the space–time metric back-reacts in a local, time-dependent way to the presence of inhomogeneities. We derive exact solutions to the Einstein field equations describing Friedmann–Lemaítre–Robertson–Walker (FLRW) large-scale cosmological evolution in the presence of local inhomogeneities and time-dependent backreaction. We use our derivation to tackle the cosmological constant problem. A cosmological constant emerges by averaging the backreaction term on spatial scales of the order of 100 Mpc, at which our universe begins to appear homogeneous and isotropic. We find that the order of magnitude of the “emerged” cosmological constant agrees with astrophysical observations and is related in a natural way to baryonic matter density. Thus, there is no coincidence problem in our framework.

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44

Acciarri, Maurizio, C. Savigni, Simona Binetti und Sergio Pizzini. „Effect of Local Inhomogeneities on the Electrical Properties of Polycrystalline Silicon“. Solid State Phenomena 37-38 (März 1994): 219–24. http://dx.doi.org/10.4028/www.scientific.net/ssp.37-38.219.

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45

Zaslavsky, Y. M., und V. Y. Zaslavsky. „Seismoacoustic sounding of local inhomogeneities by the method of reflected waves“. Computational Continuum Mechanics 13, Nr. 1 (2020): 23–33. http://dx.doi.org/10.7242/1999-6691/2020.13.1.2.

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46

Trifu, Cezar-Ioan. „Depth distribution of local stress inhomogeneities in the Vrancea Region, Romania“. Journal of Geophysical Research: Solid Earth 92, B13 (10.12.1987): 13878–86. http://dx.doi.org/10.1029/jb092ib13p13878.

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47

Krit, Timofey, Valeriy Andreev und Victor Kostikov. „Nonlinear moduli estimation for rubber-like media with local inhomogeneities elastography“. Journal of the Acoustical Society of America 133, Nr. 5 (Mai 2013): 3332. http://dx.doi.org/10.1121/1.4805593.

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48

Vanecek, M., J. Holoubek und A. Shah. „Optical study of microvoids, voids, and local inhomogeneities in amorphous silicon“. Applied Physics Letters 59, Nr. 18 (28.10.1991): 2237–39. http://dx.doi.org/10.1063/1.106081.

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49

Bobkov, N. N., und Yu P. Gupalo. „On non-stationary motions of local inhomogeneities in a pseudofluidized layer“. Journal of Applied Mathematics and Mechanics 52, Nr. 3 (Januar 1988): 333–43. http://dx.doi.org/10.1016/0021-8928(88)90086-x.

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50

, P. G. Ditmar *,. „Detection of Local Inhomogeneities by Means of Cross-borehole Seismic Tomography“. Pure and Applied Geophysics 150, Nr. 2 (01.10.1997): 269–84. http://dx.doi.org/10.1007/s000240050076.

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