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Journal articles on the topic 'Anisotropic surface energy'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

PETUKHOV, A. V., and A. LIEBSCH. "SURFACE ANISOTROPY OF SECOND HARMONIC GENERATION AT Al(111)." Surface Review and Letters 01, no. 04 (1994): 521–23. http://dx.doi.org/10.1142/s0218625x94000576.

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We present results of the first calculation of the surface anisotropic contribution to second harmonic generation for a realistic metal surface. Although the anisotropic second-order response has its origin at the surface, the main contribution to the surface anisotropic parameter ξ has a remarkably large penetration depth. Moreover, the long-range oscillations of the anisotropic nonlinear surface current deep inside aluminum are found. The surface anisotropic secondorder polarizability ξ is in a good qualitative agreement with recent experimental data on clean Al(111) at ħω=1.17 eV. A resonan

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2

Koiso, Miyuki. "Uniqueness of Closed Equilibrium Hypersurfaces for Anisotropic Surface Energy and Application to a Capillary Problem." Mathematical and Computational Applications 24, no. 4 (2019): 88. http://dx.doi.org/10.3390/mca24040088.

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We study a variational problem for hypersurfaces in the Euclidean space with an anisotropic surface energy. An anisotropic surface energy is the integral of an energy density that depends on the surface normal over the considered hypersurface, which was introduced to model the surface tension of a small crystal. The purpose of this paper is two-fold. First, we give uniqueness and nonuniqueness results for closed equilibria under weaker assumptions on the regularity of both considered hypersurfaces and the anisotropic surface energy density than previous works and apply the results to the aniso

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3

KOISO, Miyuki. "Geometry of Anisotropic Surface Energy." Proceedings of Mechanical Engineering Congress, Japan 2016 (2016): jikiin04. http://dx.doi.org/10.1299/jsmemecj.2016.jikiin04.

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4

Vidyasagar, A., S. Krödel, and D. M. Kochmann. "Microstructural patterns with tunable mechanical anisotropy obtained by simulating anisotropic spinodal decomposition." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 474, no. 2218 (2018): 20180535. http://dx.doi.org/10.1098/rspa.2018.0535.

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The generation of mechanical metamaterials with tailored effective properties through carefully engineered microstructures requires avenues to predict optimal microstructural architectures. Phase separation in heterogeneous systems naturally produces complex microstructural patterns whose effective response depends on the underlying process of spinodal decomposition. During this process, anisotropy may arise due to advection, diffusive chemical gradients or crystallographic interface energy, leading to anisotropic patterns with strongly directional effective properties. We explore the link bet

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5

Lamichhane, Shobha Kanta. "Experimental investigation on anisotropic surface properties of crystalline silicon." BIBECHANA 8 (January 15, 2012): 59–66. http://dx.doi.org/10.3126/bibechana.v8i0.4828.

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Anisotropic etching of silicon has been studied by wet potassium hydroxide (KOH) etchant with its variation of temperature and concentration. Results presented here are temperature dependent etch rate along the crystallographic orientations. The etching rate of the (111) surface family is of prime importance for microfabrication. However, the experimental values of the corresponding etch rate are often scattered and the etching mechanism of (111) remains unclear. Etching and activation energy are found to be consistently favorable with the thermal agitation for a given crystal plane. Study dem

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6

HE, L., Y. W. LIU, W. J. TONG, J. G. LIN, and X. F. WANG. "SURFACE ENERGY ENGINEERING OF Cu SURFACE BY STRAIN: FIRST-PRINCIPLES CALCULATIONS." Surface Review and Letters 20, no. 06 (2013): 1350054. http://dx.doi.org/10.1142/s0218625x13500546.

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Surface energies of strained Cu surfaces were studied systematically using first-principles methods. Results showed that the strain-stabilization of Cu surface was anisotropic and strongly related to the strain distribution. This strain-induced approach could be used as an effective way to engineer the surface energies of metals.

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7

Rofouie, P., Z. Wang, and A. D. Rey. "Two-wavelength wrinkling patterns in helicoidal plywood surfaces: imprinting energy landscapes onto geometric landscapes." Soft Matter 14, no. 25 (2018): 5180–85. http://dx.doi.org/10.1039/c8sm01022f.

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We present a model to investigate the formation of two-length scale surface patterns in biological and synthetic anisotropic soft matter materials through the high order interaction of anisotropic interfacial tension and capillarity at their free surfaces.

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8

Wang, Ziheng, Phillip Servio, and Alejandro D. Rey. "Complex Nanowrinkling in Chiral Liquid Crystal Surfaces: From Shaping Mechanisms to Geometric Statistics." Nanomaterials 12, no. 9 (2022): 1555. http://dx.doi.org/10.3390/nano12091555.

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Surface wrinkling is closely linked to a significant number of surface functionalities such as wetting, structural colour, tribology, frictions, biological growth and more. Given its ubiquity in nature’s surfaces and that most material formation processes are driven by self-assembly and self-organization and many are formed by fibrous composites or analogues of liquid crystals, in this work, we extend our previous theory and modeling work on in silico biomimicking nanowrinkling using chiral liquid crystal surface physics by including higher-order anisotropic surface tension nonlinearities. The

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9

KRZYSZTON, T. "SURFACE BARRIER IN THE MIXED STATE OF ANISOTROPIC SUPERCONDUCTOR." Modern Physics Letters B 07, no. 12 (1993): 841–47. http://dx.doi.org/10.1142/s0217984993000837.

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In the framework of London theory, the problem of equilibrium between magnetic flux density in the anisotropic superconductor and the applied external magnetic field is studied. The Gibbs free energy of a fluxoid in the presence of magnetic flux density in the sample is calculated. As a result, critical entry and exit fields are calculated and their dependence upon the angle which makes anisotropy axis and the direction of an external magnetic field.

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10

Wheeler, A. A., та G. B. McFadden. "A ξ-vector formulation of anisotropic phase-field models: 3D asymptotics". European Journal of Applied Mathematics 7, № 4 (1996): 367–81. http://dx.doi.org/10.1017/s0956792500002424.

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In this paper we present a new formulation of a large class of phase-field models, which describe solidification of a pure material and allow for both surface energy and interface kinetic anisotropy, in terms of the Hoffman–Cahn ξ-vector. The ξ-vector has previously been used in the context of sharp interface models, where it provides an elegant tool for the representation and analysis of interfaces with anisotropic surface energy. We show that the usual gradient-energy formulations of anisotropic phase-field models are expressed in a natural way in terms of the ξ-vector when appropriately int

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11

Ciftja, Orion. "Variation of the elliptical Fermi surface for a two-dimensional electron gas with anisotropic mass." Journal of Physics: Conference Series 2164, no. 1 (2022): 012023. http://dx.doi.org/10.1088/1742-6596/2164/1/012023.

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Abstract We consider a two-dimensional electron gas in the thermodynamic (bulk) limit. It is assumed that the system consists of fully spin-polarized (spinless) electrons with anisotropic mass. We study the variation of the shape of the expected elliptical Fermi surface as a function of the density of the system in presence of such form of internal anisotropy. To this effect, we calculate the energy of the system as well as the optimum ellipticity of the Fermi surface for two possible liquid states. One corresponds to the standard system with circular Fermi surface while the second one represe

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12

Vladimirov, Ivaylo N., and Stefanie Reese. "Prediction of Springback in Unconstrained Bending by a Model for Evolving Elastic and Plastic Anisotropy." Key Engineering Materials 554-557 (June 2013): 2330–37. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.2330.

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Sheet metals exhibit anisotropic plastic behavior due to the large plastic deformations that occur during the rolling of the sheet and which induce texture and are responsible for the initial anisotropy. There exist various possibilities to introduce plastic anisotropy into the finite element modelling of sheet metal forming. The initial yield anisotropy can be incorporated either through an anisotropic yield surface or directly by means of a crystallographic texture model. Here, one basically differentiates between empirical and phenomenological anisotropic yield function equations, where the

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13

Shen, Xianda, Giuseppe Buscarnera, and Fengshou Zhang. "Anisotropic Breakage Mechanics for cemented granular materials." IOP Conference Series: Earth and Environmental Science 1330, no. 1 (2024): 012049. http://dx.doi.org/10.1088/1755-1315/1330/1/012049.

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Abstract The anisotropy of granular geomaterials is sensitive to their fabric, which exhibits anisotropic mechanical properties as a function of deposition history, microscopic fabric, and loading paths. Here, a new fabric-enriched continuum breakage model is proposed to examine the relation between elastic and inelastic anisotropy in granular materials and cemented granular materials. A microstructure model is first implemented in the framework of fabric-enriched continuum breakage mechanics (F-CBM), where the anisotropic behaviour prior to yielding is introduced through a symmetric second-or

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14

Koiso, Miyuki. "Stable anisotropic capillary hypersurfaces in a wedge." Mathematics in Engineering 5, no. 2 (2022): 1–22. http://dx.doi.org/10.3934/mine.2023029.

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<abstract><p>We study a variational problem for hypersurfaces in a wedge in the Euclidean space. Our wedge is bounded by a finitely many hyperplanes passing a common point. The total energy of each hypersurface is the sum of its anisotropic surface energy and the wetting energy of the planar domain bounded by the boundary of the considered hypersurface. An anisotropic surface energy is a generalization of the surface area which was introduced to model the surface tension of a small crystal. We show an existence and uniqueness result of local minimizers of the total energy among hyp

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15

TAYLOR, J. E., and J. W. CAHN. "A Cusp Singularity in Surfaces That Minimize an Anisotropic Surface Energy." Science 233, no. 4763 (1986): 548–51. http://dx.doi.org/10.1126/science.233.4763.548.

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16

Wu, Sheng Yun, Jhong-Yi Ji, and Po-Hsun Shih. "Surface Magnetic Anisotropic Energy Gap in Cu2O Nanoparticles." Japanese Journal of Applied Physics 47, no. 1 (2008): 706–11. http://dx.doi.org/10.1143/jjap.47.706.

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17

Hesketh, Peter J., Chishein Ju, Sanjay Gowda, Elmer Zanoria, and Steven Danyluk. "Surface Free Energy Model of Silicon Anisotropic Etching." Journal of The Electrochemical Society 140, no. 4 (1993): 1080–85. http://dx.doi.org/10.1149/1.2056201.

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18

Jung Jung, Soon, Tarek Lutz, and John J. Boland. "Anisotropic etching induced by surface energy driven agglomeration." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 29, no. 5 (2011): 051403. http://dx.doi.org/10.1116/1.3626795.

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19

Hwang, S. K., and H. T. Han. "Anisotropic surface energy reduction of Zr by chemisorption." Journal of Nuclear Materials 161, no. 2 (1989): 175–81. http://dx.doi.org/10.1016/0022-3115(89)90480-7.

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20

Li, Mengyuan, and Qihuai Liu. "Periodic orbits of the spatial anisotropic Kepler problem with anisotropic perturbations." Electronic Journal of Differential Equations 2021, no. 01-104 (2021): 63. http://dx.doi.org/10.58997/ejde.2021.63.

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In this article, we study the periodic orbits of the spatial anisotropic Kepler problem with anisotropic perturbations on each negative energy surface, where the perturbations are homogeneous functions of arbitrary integer degree p. By choosing the different ranges of a parameter &beta;, we show that there exist at least 6 periodic solutions for \(p>1\), while there exist at least 2 periodic solutions for \(p\le1\) on each negative energy surface. The proofs of main results are based on symplectic Delaunay coordinates, residue theorem, and averaging theory. For more information se

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21

Luo, Y. K., and R. S. Qin. "Description of Surface Energy Anisotropy for BCC Metals." Advanced Materials Research 922 (May 2014): 446–51. http://dx.doi.org/10.4028/www.scientific.net/amr.922.446.

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Surface energy anisotropy (SEA) has long been a hot topic in interface science as it has an important role in the interface/surface behaviours for crystalline phases. Most studies aim to determine the numerical values of the anisotropic surface energy in some particular orientations, but few investigate the whole orientation-dependent trend, or the morphology of the polar plot. The present work propose descriptions for SEA of both body centred cubic (BCC) and face centred cubic (FCC) metals by considering the interactions between an atom and its 1st, 2nd and 3rd nearest neighbouring (NN) atoms

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22

GAO, Zhi-yong, Wei SUN, and Yue-hua HU. "Mineral cleavage nature and surface energy: Anisotropic surface broken bonds consideration." Transactions of Nonferrous Metals Society of China 24, no. 9 (2014): 2930–37. http://dx.doi.org/10.1016/s1003-6326(14)63428-2.

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23

Xue, Yibin, and Jianmin Qu. "On the Energy Release Rate of Elliptical Cracks in Anisotropic Elastic Media." Journal of Mechanics 19, no. 1 (2003): 233–39. http://dx.doi.org/10.1017/s1727719100004263.

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ABSTRACTThis brief note discusses some issues related to the calculation of energy release rate for elliptical cracks in anisotropic solids. By using the Stroh formalism, analytical expressions of the energy release rate are obtained for elliptical cracks in an unbounded anisotropic solid. Because of material anisotropy and geometric asymmetry of the crack, the local energy release rate varies along the crack front. The average energy release rate can be obtained by integrating the local energy release rate over the entire crack front. On the other hand, the total work done by the crack-surfac

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24

Garg, S. K., D. P. Datta, J. Ghatak, et al. "Tunable wettability of Si through surface energy engineering by nanopatterning." RSC Advances 6, no. 54 (2016): 48550–57. http://dx.doi.org/10.1039/c6ra04906k.

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25

Sharif, M., and Sobia Sadiq. "Conformally flat polytropes for anisotropic cylindrical geometry." Canadian Journal of Physics 93, no. 12 (2015): 1583–87. http://dx.doi.org/10.1139/cjp-2015-0352.

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In this paper, we study cylindrically symmetric anisotropic matter distribution satisfying two polytropic equations of state. The corresponding Lane–Emden equations are constructed and the energy conditions are checked. We evaluate a particular expression for anisotropy by using the conformally flat condition, which helps in the study of polytropic models. The graphical analysis of surface gravitational potential indicates the increasing behavior of model compactness. Finally, we conclude that one of the obtained models is physically viable.

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26

SU, C. W., S. C. CHANG, and Y. C. CHANG. "MAGNETO-OPTIC FARADAY EFFECT ON SPIN ANISOTROPIC Co ULTRATHIN FILMS AND POST-NITRIDIZATION ON ZnO(002) CRYSTAL." SPIN 02, no. 04 (2012): 1250017. http://dx.doi.org/10.1142/s2010324712500178.

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Perpendicular magnetic anisotropy in the initial growth of epitaxial in-plane anisotropic Co ultrathin films on the ZnO (002) crystal surface was discovered. The critical thickness of weak spin reorientation transition phenomenon in deposition process from in-plane to out-of-plane magnetic anisotropy is around 2 nm. Ultrathin 1.2 nm Co film was stabilized by post-irradiation of low-energy N ions from the observation of hysteresis loop transforming from an S-shape soft magnetic state to a square hard magnetic state. The addition of N affected the magnetic behavior. The time-dependent nitridizat

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27

Gentsar, P. O., M. V. Vuichyk, and A. V. Stronski. "Impact of a surface on the electro-reflectance spectra of n-Si(110) and their polarization anisotropy." Physics and Chemistry of Solid State 21, no. 3 (2020): 440–44. http://dx.doi.org/10.15330/pcss.21.3.440-444.

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The electro-reflectance spectra, including their polarization dependencies were analyzed for n-Si(110) in the energy range of 2.9-3.8 eV. Based on the optical anisotropy of electro-optical effect, two contributions originated from a surface, (isotropic part relates to the linear electro-optical effect which inherent for (110) surface) and bulk, (anisotropic part relates to the Franz–Keldysh effect) were identified and separated. The presence of such extreme is explained by the zero value of the electron wave function on the surface and (or) the structure gettering of the free carriers.

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28

Eremeyev, V. A. "Strongly anisotropic surface elasticity and antiplane surface waves." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2162 (2019): 20190100. http://dx.doi.org/10.1098/rsta.2019.0100.

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Within the new model of surface elasticity, the propagation of anti-plane surface waves is discussed. For the proposed model, the surface strain energy depends on surface stretching and on changing of curvature along a preferred direction. From the continuum mechanics point of view, the model describes finite deformations of an elastic solid with an elastic membrane attached on its boundary reinforced by a family of aligned elastic long flexible beams. Physically, the model was motivated by deformations of surface coatings consisting of aligned bar-like elements as in the case of hyperbolic me

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29

Bigozha, O. D., A. Zh Seitmuratov, L. U. Taimuratova, B. K. Kazbekova, and Z. K. Aimaganbetova. "Longitudinal magnetoresistance of uniaxially deformed n-type silicon." Bulletin of the Karaganda University. "Physics" Series 106, no. 2 (2022): 111–16. http://dx.doi.org/10.31489/2022ph1/111-116.

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The study of Galvano-magnetic effects (as well as tensoeffects) in silicon under extreme conditions allows not only to identify the mechanisms of these effects but also to identify the possibility of creating gaussmeters, infrared detectors, sensitive strain gauges, amplifiers and generators of a wide frequency range. The reliability of the mechanism of negative magnetoresistance was verified using uniaxial elastic deformation of the studied crystals. Uniaxial deformation excludes interline transitions of electrons, as a result of which negative magnetoresistance disappears with an increase in

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30

Bigozha, O. D., A. Zh Seitmuratov, L. U. Taimuratova, B. K. Kazbekova, and Z. K. Aimaganbetova. "Longitudinal magnetoresistance of uniaxially deformed n-type silicon." Bulletin of the Karaganda University "Physics Series" 106, no. 2 (2022): 111–16. http://dx.doi.org/10.31489/2022ph2/111-116.

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The study of Galvano-magnetic effects (as well as tensoeffects) in silicon under extreme conditions allows not only to identify the mechanisms of these effects but also to identify the possibility of creating gaussmeters, infrared detectors, sensitive strain gauges, amplifiers and generators of a wide frequency range. The reliability of the mechanism of negative magnetoresistance was verified using uniaxial elastic deformation of the studied crystals. Uniaxial deformation excludes interline transitions of electrons, as a result of which negative magnetoresistance disappears with an increase in

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31

Siegel, M. "Evolution of material voids for highly anisotropic surface energy." Journal of the Mechanics and Physics of Solids 52, no. 6 (2004): 1319–53. http://dx.doi.org/10.1016/j.jmps.2003.11.003.

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32

Emelianova, N., I. V. Fialkovsky, and N. Khusnutdinov. "Casimir effect for biaxial anisotropic plates with surface conductivity." Modern Physics Letters A 35, no. 03 (2020): 2040012. http://dx.doi.org/10.1142/s021773232040012x.

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The Casimir energy is constructed for a system consisting of two semi-infinite slabs of anisotropic material. Each of them is characterized by bulk complex dielectric permittivity tensor and surface conductivity on the free boundary. We found general form of the scattering matrix and Fresnel coefficients for each part of the system by solving Maxwell equations in the anisotropic media.

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Liu, Yang, Enbo Zhu, Jin Huang, Ao Zhang, and Yu Huang. "Ultrathin Pt Nanowire Network Monolayer for Oxygen Reduction Reaction." ECS Meeting Abstracts MA2024-02, no. 67 (2024): 4686. https://doi.org/10.1149/ma2024-02674686mtgabs.

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Owing to a rising energy demand with the increasing population and development of society, hydrogen fuel cells have attracted considerable attention in electrochemistry research. Compared with the hydrogen oxidation reaction at the anode, the oxygen reduction reaction (ORR) at the cathode exhibits more sluggish kinetics due to its multielectron, multistep reaction mechanism, which is the critical limiting step in hydrogen fuel cells. Therefore, developing catalysts with excellent performance for ORR is essential for developing hydrogen fuel cells. Pt nanomaterials represent the most widely exp

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34

KYRIAKOPOULOS, E. "FAMILY OF ROTATING ANISOTROPIC FLUID SOLUTIONS WHICH MATCH TO KERR'S SOLUTION." International Journal of Modern Physics D 22, no. 07 (2013): 1350051. http://dx.doi.org/10.1142/s021827181350051x.

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We present a family of exact rotating anisotropic fluid solutions, which satisfy all energy conditions for certain values of their parameters. The components of the Ricci tensor Rμν the eigenvalues of the tensor [Formula: see text] and the energy–momentum tensor Tμν of the solutions are given explicitly. All members of the family have the ring singularity of Kerr's solution and most of them have one or two more singularities. The solutions can be matched to the solution of Kerr on three closed surfaces, which for proper values of the parameters of the solutions approximate oblate spheroids. Al

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35

Guseynov, Sharif E., and Jekaterina V. Aleksejeva. "MODELLING AND INVESTIGATION OF THE DEPENDENCE OF SUPERHYDROPHOBIC PROPERTIES OF NANOSURFACES ON THE TOPOLOGY OF MICROCHANNELS." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 20, 2019): 52. http://dx.doi.org/10.17770/etr2019vol3.4171.

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In the Cassie-Baxter state anisotropic superhydrophobic surfaces have high lubricating properties. Such superhydrophobic surfaces are used in medical implants, aircraft industry, vortex bioreactors etc. In spite of the fact that quantitative understanding of fluid dynamics on anisotropic superhydrophobic surfaces has been broadened substantially for last several years, there still are some unsolved problems in this field. This work investigates dynamics of a liquid on unidirectional superhydrophobic surfaces in the Cassie-Baxter state, when surface texture is filled with gas and, consequently,

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MUKHOPADHYAY, INDRANIL, and A. ROY CHOWDHURY. "ANISOTROPIC AFFINE ALGEBRA AND ANISOTROPIC WZW MODEL." Modern Physics Letters A 10, no. 20 (1995): 1441–48. http://dx.doi.org/10.1142/s0217732395001551.

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Invariant action for a new kind of (anisotropic) WZW model has been constructed using the co-adjoint orbit approach and the affine anistropic algebra suggested by Sidorenko. The Alekseev-Shatashvili type of equation is used to construct the corresponding symplectic form. The present model is similar in many aspects to the WZW model on a Riemann surface.

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Fiedler, Thomas, Graeme E. Murch, Timo Bernthaler, and Irina V. Belova. "Numerical Characterization of Anisotropic Heat Sink Composites." Materials Science Forum 654-656 (June 2010): 1500–1503. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.1500.

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This work addresses the numerical analysis of anisotropic composite structures for thermal energy storage and temperature stabilization. The basic idea of heat sink composites is the combination of metallic matrices for fast energy transfer with phase change materials for thermal energy storage. Anisotropic matrices, such as lotus-type structures, allow for increased control of the thermal energy flow, without the necessity of additional thermal insulation. As an example, thermal energy can be directed towards a surface cooled by convection and excess energy is stored in the phase-change mater

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SHEN, LIAN, and DICK K. P. YUE. "Large-eddy simulation of free-surface turbulence." Journal of Fluid Mechanics 440 (August 10, 2001): 75–116. http://dx.doi.org/10.1017/s0022112001004669.

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In this paper we investigate the large-eddy simulation (LES) of the interaction between a turbulent shear flow and a free surface at low Froude numbers. The benchmark flow field is first solved by using direct numerical simulations (DNS) of the Navier–Stokes equations at fine (1282 × 192 grid) resolution, while the LES is performed at coarse resolution. Analysis of the ensemble of 25 DNS datasets shows that the amount of energy transferred from the grid scales to the subgrid scales (SGS) reduces significantly as the free surface is approached. This is a result of energy backscatter associated

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39

Łysko, Jan M. "Anisotropic etching of the silicon crystal-surface free energy model." Materials Science in Semiconductor Processing 6, no. 4 (2003): 235–41. http://dx.doi.org/10.1016/j.mssp.2003.09.003.

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40

Burger, Martin. "Numerical simulation of anisotropic surface diffusion with curvature-dependent energy." Journal of Computational Physics 203, no. 2 (2005): 602–25. http://dx.doi.org/10.1016/j.jcp.2004.08.024.

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41

Gurski, K. F., and G. B. McFadden. "The effect of anisotropic surface energy on the Rayleigh instability." Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 459, no. 2038 (2003): 2575–98. http://dx.doi.org/10.1098/rspa.2003.1144.

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42

Koike, Naoyuki. "A holonomy invariant anisotropic surface energy in a Riemannian manifold." Differential Geometry and its Applications 44 (February 2016): 98–121. http://dx.doi.org/10.1016/j.difgeo.2015.11.003.

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43

Li, Haifeng, Wei Wang, Yajun Cao, and Shifan Liu. "Phase-Field Modeling Fracture in Anisotropic Materials." Advances in Civil Engineering 2021 (July 30, 2021): 1–13. http://dx.doi.org/10.1155/2021/4313755.

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The phase-field method is a widely used technique to simulate crack initiation, propagation, and coalescence without the need to trace the fracture surface. In the phase-field theory, the energy to create a fracture surface per unit area is equal to the critical energy release rate. Therefore, the precise definition of the crack-driving part is the key to simulate crack propagation. In this work, we propose a modified phase-field model to capture the complex crack propagation, in which the elastic strain energy is decomposed into volumetric-deviatoric energy parts. Because of the volumetric-de

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Govender, M., R. S. Bogadi, D. B. Lortan, and S. D. Maharaj. "Radiating collapse in the presence of anisotropic stresses." International Journal of Modern Physics D 25, no. 03 (2016): 1650037. http://dx.doi.org/10.1142/s0218271816500371.

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In this paper, we investigate the effect of anisotropic stresses (radial and tangential pressures being unequal) for a collapsing fluid sphere dissipating energy in the form of radial flux. The collapse starts from an initial static sphere described by the Bowers and Liang solution and proceeds until the time of formation of the horizon. We find that the surface redshift increases as the stellar fluid moves away from isotropy. We explicitly show that the formation of the horizon is delayed in the presence of anisotropy. The evolution of the temperature profiles is investigated by employing a c

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Lori Zoudani, Elham, Nam-Trung Nguyen, and Navid Kashaninejad. "Engineering Wettability Transitions on Laser-Textured Shark Skin-Inspired Surfaces via Chemical Post-Processing Techniques." Micromachines 15, no. 12 (2024): 1442. http://dx.doi.org/10.3390/mi15121442.

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Surface wettability, the interaction between a liquid droplet and the surface it contacts, plays a key role in influencing droplet behavior and flow dynamics. There is a growing interest in designing surfaces with tailored wetting properties across diverse applications. Advanced fabrication techniques that create surfaces with unique wettability offer significant innovation potential. This study investigates the wettability transition of laser-textured anisotropic surfaces featuring shark skin-inspired microstructures using four post-processing methods: spray coating, isopropyl alcohol (IPA) t

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Mighani, Saied, Carl H. Sondergeld, and Chandra S. Rai. "Observations of Tensile Fracturing of Anisotropic Rocks." SPE Journal 21, no. 04 (2016): 1289–301. http://dx.doi.org/10.2118/2014-1934272-pa.

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Summary Hydraulic fracturing is crucial to hydrocarbon recovery from resource plays and is essential to exploitation of geothermal energy. This process creates new tensile fractures and reactivates existing natural fractures, forming a highly conductive stimulated-reservoir volume (SRV) around the borehole. Although this process has been extensively studied and modeled for isotropic rock, only a limited number of studies have been performed for anisotropic rocks, such as shales, gneisses, and foliated granites. The fracturing process of anisotropic rocks such as shales is examined in this stud

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Zhang, Fangyuan, Xiaosen Wang, Shilin Zhang, Xiaoqing Cao, Qiang He, and Lu Li. "The Influence of Anisotropic Microstructures on the Ice Adhesion Performance of Rubber Surfaces." Coatings 15, no. 5 (2025): 612. https://doi.org/10.3390/coatings15050612.

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Anti-icing and de-icing technologies are crucial in modern aviation, with optimising ice adhesion performance on material surfaces being a key challenge. This study proposes a straightforward method for fabricating hydrophobic silicone rubber surfaces using a mesh to construct microstructures. The influence of microstructure size and anisotropy on surface wettability and ice adhesion performance is systematically investigated. The experimental results demonstrate that introducing microstructures significantly enhances the hydrophobicity of silicone rubber surfaces, achieving a maximum static c

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Ren, Shaoting, Evan S. Miles, Li Jia, et al. "Anisotropy Parameterization Development and Evaluation for Glacier Surface Albedo Retrieval from Satellite Observations." Remote Sensing 13, no. 9 (2021): 1714. http://dx.doi.org/10.3390/rs13091714.

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Glacier albedo determines the net shortwave radiation absorbed at the glacier surface and plays a crucial role in glacier energy and mass balance. Remote sensing techniques are efficient means to retrieve glacier surface albedo over large and inaccessible areas and to study its variability. However, corrections of anisotropic reflectance of glacier surface have been established for specific shortwave bands only, such as Landsat 5 Thematic Mapper (L5/TM) band 2 and band 4, which is a major limitation of current retrievals of glacier broadband albedo. In this study, we calibrated and evaluated f

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Manjit Borah. "Theoretical Insights into Growth Mechanisms of ZnO Nanorods." Journal of Nanoscience and Technology 10, no. 2 (2025): 995–98. https://doi.org/10.30799/jnst.357.25100201.

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Zinc oxide (ZnO) nanorods exhibit unique anisotropic growth behaviour influenced by surface energy variations, chemical potential gradients, and synthesis conditions. This study explores the fundamental thermodynamic and kinetic factors governing ZnO nanorod formation, focusing on surface energy minimization, Gibbs free energy stability, and Wulff construction-based morphology prediction. The role of chemical potential, supersaturation, and Ostwald ripening in directing anisotropic growth along the c-axis is also analyzed. Additionally, the hydrothermal synthesis of ZnO nanorods, the most ofte

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Bartolomé, Juan, E. Bartolomé, V. V. Eremenko, V. V. Ibulaev, Valentyna Sirenko, and Yu T. Petrusenko. "Magnetic Anisotropy in 2H-NbSe₂ Electron Irradiated Single Crystals." Solid State Phenomena 152-153 (April 2009): 470–73. http://dx.doi.org/10.4028/www.scientific.net/ssp.152-153.470.

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The anisotropic magnetic properties of the metallic layered compound with hexagonal crystal structure 2H-NbSe2 are investigated as a function of their dependence on high-energy electron irradiation. Pauli paramagnetism of free electrons is shown to dominate the magnetic susceptibility, P. The anisotropy is related to spin-orbit effects on the hybridized electronic states. Irradiation affects the density of states at the Fermi surface, increasing both P and the anisotropy. Below a threshold temperature, TS=54 K, the paramagnetic contribution, which increases with the dose, is ascribed to dang

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