Статті в журналах: "Biaxial media"

1

New, G. H. C. "Biaxial media revisited." European Journal of Physics 34, no. 5 (July 31, 2013): 1263–76. http://dx.doi.org/10.1088/0143-0807/34/5/1263.

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2

Weiglhofer, Werner S., and Akhlesh Lakhtakia. "On Electromagnetic Waves in Biaxial Bianisotropic Media." Electromagnetics 19, no. 4 (July 1999): 351–62. http://dx.doi.org/10.1080/02726349908908652.

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3

Wang, Yanyang, Peng Shi, Hong Xin, and Lei Wu. "Complex ray tracing in biaxial anisotropic absorbing media." Journal of Optics A: Pure and Applied Optics 10, no. 7 (June 2, 2008): 075009. http://dx.doi.org/10.1088/1464-4258/10/7/075009.

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4

Mitchell, A., J. T. Aberle, D. M. Kokotoff, and M. W. Austin. "An anisotropic PML for use with biaxial media." IEEE Transactions on Microwave Theory and Techniques 47, no. 3 (March 1999): 374–77. http://dx.doi.org/10.1109/22.750246.

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5

Damaskos, N. J., A. L. Maffett, and P. L. E. Uslenghi. "Reflection and transmission for gyroelectromagnetic biaxial layered media." Journal of the Optical Society of America A 2, no. 3 (March 1, 1985): 454. http://dx.doi.org/10.1364/josaa.2.000454.

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6

Moskvin, D. N., V. P. Romanov, and A. Yu Val’kov. "Green’s function of the electromagnetic field in biaxial media." Physical Review E 48, no. 2 (August 1, 1993): 1436–46. http://dx.doi.org/10.1103/physreve.48.1436.

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7

Lakhtakia, Akhlesh. "On the Motohiro-Taga interface for biaxial columnar media." Optical Engineering 37, no. 12 (December 1, 1998): 3268. http://dx.doi.org/10.1117/1.602001.

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8

Hodgkinson, Ian, Qi Hong Wu, and Simon Collett. "Dispersion equations for vacuum-deposited tilted-columnar biaxial media." Applied Optics 40, no. 4 (February 1, 2001): 452. http://dx.doi.org/10.1364/ao.40.000452.

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9

Pandit, Aditya, Xiao Lu, Chong Wang, and Ghassan S. Kassab. "Biaxial elastic material properties of porcine coronary media and adventitia." American Journal of Physiology-Heart and Circulatory Physiology 288, no. 6 (June 2005): H2581—H2587. http://dx.doi.org/10.1152/ajpheart.00648.2004.

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The importance of mechanical stresses and strains has become well recognized in vascular physiology and pathology. To compute the stress and strain on the various components of the vessel wall, we must know the constitutive equations for the different layers of the vessel wall. The objective of the present study is to determine the constitutive equation of the coronary artery treated as a two-layer composite: intima-media and adventitial layers. Twelve hearts were obtained from a local slaughterhouse, and the right coronary artery and left anterior descending artery were dissected free from the myocardium. The vessel wall was initially mechanically tested biaxially (inflation and axial extension) as a whole (intact wall) and subsequently as intima-media or adventitial layer. A Fung-type exponential strain energy function was used to curve fit the experimental data for the intact wall and individual layers for the right coronary artery and left anterior descending artery. Two methods were used for the determination of material constants, including the Marquardt-Levenberg nonlinear least squares method and the genetic algorithm method. Our results show that there were no statistically significant differences in the material constants obtained from the two methods and that either set of elastic constants results in good fit of the data. Furthermore, at an in vivo value of axial stretch ratio, we find that the stiffness is as follows: intima-media > intact > adventitia. These results underscore the composite nature of coronary arteries with different material properties in each layer. The present results are necessary for analysis of coronary artery mechanics and to provide a fundamental understanding of vessel physiology.

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10

Cojocaru, E. "Dyakonov hybrid surface waves at the isotropic–biaxial media interface." Journal of the Optical Society of America A 32, no. 5 (April 16, 2015): 782. http://dx.doi.org/10.1364/josaa.32.000782.

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11

He, Zhili, Kai Huang, Richard C. Liu, Chen Guo, Zhao Jin, and Lina Zhang. "A semianalytic solution to the response of a triaxial induction logging tool in a layered biaxial anisotropic formation." GEOPHYSICS 81, no. 1 (January 1, 2016): D71—D82. http://dx.doi.org/10.1190/geo2015-0105.1.

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We have developed a forward-modeling method to compute the response of a triaxial induction logging tool in a layered biaxial anisotropic dipping formation without borehole and invasion zones. The purpose of this development is to provide a fast-forward computation algorithm to handle cracks in transverse isotropic (TI) formations in oil exploration, which is a mathematically challenging problem for log data inversion. We solve for the spectral-domain transverse electromagnetic (EM) field equations, propagation matrix, and reflection matrix in a biaxial anisotropic planarly layered media. The EM fields in the space domain are obtained by a 2D inverse Fourier transform. We derive formulations of the EM fields generated by three orthogonal transmitting coils in a fully anisotropic layered media. The proposed formulations are based on arbitrary relative dipping and azimuthal and tool angles; thus, we obtain the full coupling matrix connecting source excitations and magnetic fields anywhere along the tool axis. Computation results using this method in the response of triaxial induction tools in several cases were compared with published data in TI formations and biaxial layered formations. Our results agreed very well with the published data.

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12

Kang, Zhuangzhuang, Hongnian Wang, and Changchun Yin. "Finite-Region Approximation of EM Fields in Layered Biaxial Anisotropic Media." Remote Sensing 14, no. 15 (August 8, 2022): 3836. http://dx.doi.org/10.3390/rs14153836.

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A new algorithm is developed to accurately compute the electromagnetic (EM) fields in the layered biaxial anisotropic media. We enclose the computational region in an infinitely long rectangular region by four vertical truncation planes and establish the corresponding algorithm to approximate the EM fields in the entire space. The EM fields in this region are expanded as a two-dimensional (2-D) Fourier series of the transverse variables. By using the spectral state variable method, the generalized reflection coefficient matrices and transmission matrices are then derived to determine the Fourier coefficients per layer. Therefore, we can obtain the spatial-domain EM fields by summing the 2-D Fourier series. To enhance the accuracy and efficiency of this algorithm, we apply the method of images to estimate the influence of the artificial boundaries on the EM fields at the observer. We then further develop a quantitative principle to choose the proper size of the region according to the desired error tolerance. With the proper choice, the summation of the series can achieve satisfactory accuracy. This algorithm is finally applied to simulate the responses of the triaxial logging tool in transversely isotropic and biaxial anisotropic media and is verified through comparisons to the other method.

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13

Zheng, Zebo, Ningsheng Xu, Stefano L. Oscurato, Michele Tamagnone, Fengsheng Sun, Yinzhu Jiang, Yanlin Ke, et al. "A mid-infrared biaxial hyperbolic van der Waals crystal." Science Advances 5, no. 5 (May 2019): eaav8690. http://dx.doi.org/10.1126/sciadv.aav8690.

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Hyperbolic media have attracted much attention in the photonics community due to their ability to confine light to arbitrarily small volumes and their potential applications to super-resolution technologies. The two-dimensional counterparts of these media can be achieved with hyperbolic metasurfaces that support in-plane hyperbolic guided modes upon nanopatterning, which, however, poses notable fabrication challenges and limits the achievable confinement. We show that thin flakes of a van der Waals crystal, α-MoO3, can support naturally in-plane hyperbolic polariton guided modes at mid-infrared frequencies without the need for patterning. This is possible because α-MoO3 is a biaxial hyperbolic crystal with three different Reststrahlen bands, each corresponding to a different crystalline axis. These findings can pave the way toward a new paradigm to manipulate and confine light in planar photonic devices.

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14

KROWNE, C. M. "Spectral-domain determination of the propagation constant in biaxial planar media." International Journal of Electronics 59, no. 3 (September 1985): 315–32. http://dx.doi.org/10.1080/00207218508920702.

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15

Ouchi, K., and S. Iwasaki. "Analysis of perpendicular recording media using a biaxial vibrating sample magnetometer." IEEE Transactions on Magnetics 24, no. 6 (1988): 3009–11. http://dx.doi.org/10.1109/20.92317.

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16

Chen, Huan, Yunlong Huo, and Ghassan S. Kassab. "Biaxial Constitutive Model of Active Coronary Media Based on Microstructural Information." Engineering 05, no. 10 (2013): 341–46. http://dx.doi.org/10.4236/eng.2013.510b069.

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17

Zarifi, Davoud, Mohammad Soleimani, and Ali Abdolali. "Electromagnetic Characterization of Biaxial Bianisotropic Media Using the State Space Approach." IEEE Transactions on Antennas and Propagation 62, no. 3 (March 2014): 1538–42. http://dx.doi.org/10.1109/tap.2013.2297166.

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18

Tuz, Vladimir R., and Volodymyr I. Fesenko. "Magnetically induced topological transitions of hyperbolic dispersion in biaxial gyrotropic media." Journal of Applied Physics 128, no. 1 (July 7, 2020): 013107. http://dx.doi.org/10.1063/5.0013546.

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19

Zaucha, Michael T., Robert Gauvin, Francois A. Auger, Lucie Germain, and Rudolph L. Gleason. "Biaxial biomechanical properties of self-assembly tissue-engineered blood vessels." Journal of The Royal Society Interface 8, no. 55 (June 16, 2010): 244–56. http://dx.doi.org/10.1098/rsif.2010.0228.

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Along with insights into the potential for graft success, knowledge of biomechanical properties of small diameter tissue-engineered blood vessel (TEBV) will enable designers to tailor the vessels' mechanical response to closer resemble that of native tissue. Composed of two layers that closely mimic the native media and adventitia, a tissue-engineered vascular adventitia (TEVA) is wrapped around a tissue-engineered vascular media (TEVM) to produce a self-assembled tissue-engineered media/adventia (TEVMA). The current study was undertaken to characterize the biaxial biomechanical properties of TEVM, TEVA and TEVMA under physiological pressures as well as characterize the stress-free reference configuration. It was shown that the TEVA had the greatest compliance over the physiological loading range while the TEVM had the lowest compliance. As expected, compliance of the SA-TEBV fell in between with an average compliance of 2.73 MPa −1 . Data were used to identify material parameters for a microstructurally motivated constitutive model. Identified material parameters for the TEVA and TEVM provided a good fit to experimental data with an average coefficient of determination of 0.918 and 0.868, respectively. These material parameters were used to develop a two-layer predictive model for the response of a TEVMA which fit well with experimental data.

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20

Emelianova, N., I. V. Fialkovsky, and N. Khusnutdinov. "Casimir effect for biaxial anisotropic plates with surface conductivity." Modern Physics Letters A 35, no. 03 (January 16, 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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21

Pazynin, Leonid A., Vadim L. Pazynin, and Hanna O. Sliusarenko. "Closed Form of Green Function for Some Types of Biaxial Anisotropic Media." Electromagnetics 37, no. 2 (February 17, 2017): 106–12. http://dx.doi.org/10.1080/02726343.2017.1279111.

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22

Abdulhalim, I. "Analytic propagation matrix method for linear optics of arbitrary biaxial layered media." Journal of Optics A: Pure and Applied Optics 1, no. 5 (August 27, 1999): 646–53. http://dx.doi.org/10.1088/1464-4258/1/5/311.

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23

Lakhtakia, Akhlesh. "Energy flows in axially excited, locally biaxial, dielectric, helicoidal bianisotropic media (HBMs)." Optics Communications 161, no. 4-6 (March 1999): 275–86. http://dx.doi.org/10.1016/s0030-4018(99)00053-x.

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24

Bellver-Cebreros, Consuelo, and Marcelo Rodriguez-Danta. "Amphoteric refraction at the isotropic–anisotropic biaxial media interface: an alternative treatment." Journal of Optics A: Pure and Applied Optics 8, no. 12 (November 1, 2006): 1067–73. http://dx.doi.org/10.1088/1464-4258/8/12/006.

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25

Sirenko, Yurii Konstantinovich, S. K. Tleukenov, N. P. Yashina, and Z. K. Zhalgasbekova. "PROPAGATION OF ELECTROMAGNETIC WAVES IN STRUCTURES WITH BIAXIAL ANISOTROPIC MEDIA OF MONOCLINIC SYNGONY. PART 1: UNLIMITED MEDIA." Telecommunications and Radio Engineering 79, no. 5 (2020): 363–81. http://dx.doi.org/10.1615/telecomradeng.v79.i5.10.

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26

Lu, Xiao, Aditya Pandit, and Ghassan S. Kassab. "Biaxial incremental homeostatic elastic moduli of coronary artery: two-layer model." American Journal of Physiology-Heart and Circulatory Physiology 287, no. 4 (October 2004): H1663—H1669. http://dx.doi.org/10.1152/ajpheart.00226.2004.

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The detailed mechanical properties of various layers of the coronary artery are important for understanding the function of the vessel. The present article is focused on the determination of the incremental modulus in different layers and directions in the neighborhood of the in vivo state. The incremental modulus can be defined for any material subjected to a large deformation if small perturbations in strain lead to small perturbations of stresses in a linear fashion. This analysis was applied to the porcine coronary artery, which was treated as a two-layered structure consisting of an inner intima-media layer and an outer adventitia layer. We adopted a theory based on small-perturbation experiments at homeostatic conditions for determination of incremental moduli in circumferential, axial, and cross directions in the two layers. The experiments were based on inflation and axial stretch. We demonstrate that under homeostatic conditions the incremental moduli are layer- and direction dependent. The incremental modulus is highest in the circumferential direction. Furthermore, in the circumferential direction, the media is stiffer than the whole wall, which is stiffer than the adventitia. In the axial direction, the adventitia is stiffer than the intact wall, which is stiffer than the media. Hence, the coronary artery must be treated as a composite, nonisotropic body. The data acquire physiological relevance in relation to coronary artery health and disease.

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27

Abdollahi, F., and A. Ghassemi. "Surface and Nonlocal Effects on Coupled In-Plane Shear Buckling and Vibration of Single-Layered Graphene Sheets Resting on Elastic Media and Thermal Environments using DQM." Journal of Mechanics 34, no. 6 (May 10, 2018): 847–62. http://dx.doi.org/10.1017/jmech.2018.14.

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AbstractIn this article, surface and nonlocal effects are explored in the analysis of buckling and vibration in rectangular single-layered graphene sheets embedded in elastic media and subjected to coupled in-plane loadings and thermal conditions. The small-scale and surface effects are taken into account using the Eringen's nonlocal elasticity and Gurtin-Murdoch's theory, respectively. Using the principle of virtual work, the governing equations considering small-scale are derived for the nanoplate bulk and surface. The differential quadrature method (DQM) is utilized for the solution of the relevant problems and the results are validated against Navier's solutions. The impacts of the nonlocal parameter, Winkler and shear elastic moduli, temperature rise, boundary conditions, and the in-plane biaxial, uniaxial, and shear loadings on the surface effects of buckling and vibration are investigated. Numerical results show that increasing nonlocal parameter leads to enhanced surface effects on both buckling and vibration. This is in contrast to those reported elsewhere. Moreover, increasing in-plane loads are observed to enhance surface effects on vibration. On the other hand, the nonlocal parameter is observed to have more pronounced effects on shear buckling and vibration of plates subjected to coupled in-plane shear loads than those subjected to biaxial and uniaxial loads. This is while surface effects have greater impacts on biaxial buckling and vibration of nanoplates than on shear buckling and vibration.

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28

Taghizadeh, Hadi, Mohammad Tafazzoli-Shadpour, Mohammad Shadmehr, and Nasser Fatouraee. "Evaluation of Biaxial Mechanical Properties of Aortic Media Based on the Lamellar Microstructure." Materials 8, no. 1 (January 16, 2015): 302–16. http://dx.doi.org/10.3390/ma8010302.

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29

Eiro, José Manuel Din, Santiago Alfonso, Coro Alberdi, and Miguel Berrogui. "Statistical parameters of the indicating surface of natural reflectance for biaxial transparent media." Journal of Modern Optics 44, no. 9 (September 1, 1997): 1661–70. http://dx.doi.org/10.1080/095003497153022.

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30

Schmidlin, F., P. R. Bissell, and J. A. Gotaas. "Measurement of texture in magnetic recording media using a biaxial vibrating sample magnetometer." Journal of Applied Physics 79, no. 8 (1996): 4746. http://dx.doi.org/10.1063/1.361658.

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31

Schubert, Mathias, Christiane Cramer, John A. Woollam, Craig M. Herzinger, Blaine Johs, Herbert Schmiedel, and Bernd Rheinländer. "Generalized transmission ellipsometry for twisted biaxial dielectric media: application to chiral liquid crystals." Journal of the Optical Society of America A 13, no. 9 (September 1, 1996): 1930. http://dx.doi.org/10.1364/josaa.13.001930.

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32

Diñeiro, José Manuel, Santiago Alfonso, Coro Alberdi, and Miguel Berrogui. "Statistical parameters of the indicating surface of natural reflectance for biaxial transparent media." Journal of Modern Optics 44, no. 9 (September 1997): 1661–70. http://dx.doi.org/10.1080/09500349708230766.

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33

Jovanovic, Nenad, and Walter Papousek. "A 2×2 Matrix Algebra for Electromagnetic Wave Propagation in Stratified Biaxial Media." AEU - International Journal of Electronics and Communications 55, no. 2 (January 2001): 123–26. http://dx.doi.org/10.1078/1434-8411-00017.

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34

Goulon, J., C. Goulon-Ginet, A. Rogalev, V. Gotte, C. Brouder, and C. Malgrange. "X-ray dichroism in biaxial gyrotropic media: Differential absorption and fluorescence excitation spectra." European Physical Journal B 12, no. 3 (November 1999): 373–85. http://dx.doi.org/10.1007/s100510051018.

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35

Захарченко, М. В., та Г. Ф. Глинский. "Поверхностные электромагнитные волны Дьяконова на границе раздела анизотропных двуосных кристаллов". Журнал технической физики 92, № 11 (2022): 1720. http://dx.doi.org/10.21883/jtf.2022.11.53446.140-22.

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A general approach to analysis of Dyakonov surface waves at the interfaces of anisotropic biaxial crystals is proposed, taking into account arbitrary spatial orientation of the media tensors principal axes. This approach is based on the operator representation of macroscopic Maxwell equations corresponding to the quantum-mechanical equations for photon states in an inhomogeneous anisotropic media. Surface wave dispersion law is investigated in the most general case. It is established that the interface eigenmode dispersion is closely related to the dispersion of bulk waves in the partnering media, which is a specific feature of Dyakonov waves. The electromagnetic field spatial distribution is investigated in the direction orthogonal to the boundary plane. The surface wave angular existence domain is determined. It’s dependencies on the rotation angles of the media optical axes are studied as well.

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36

Maranha, J. R., and E. Maranha das Neves. "Coeficiente de segurança de taludes com rotura progressiva." Geotecnia, no. 100 (February 20, 2004): 167–77. http://dx.doi.org/10.14195/2184-8394_100_13.

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Neste trabalho é descrito um método para o cálculo do coefic ie nte de segurança de taludes em materiais com amolecimento , tais como areias densas ou argilas sobreconsolidadas. É também analisado o fenómeno associado da localização da deformação, ilustrado por intermédio da modelação de um ensaio biaxial.

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37

Reshetnyak, Sergey A., and Tat'yana A. Homenko. "Interface coupling properties and reflection of bulk spin waves from biaxial multilayer ferromagnetic media." PMC Physics B 1, no. 1 (2008): 5. http://dx.doi.org/10.1186/1754-0429-1-5.

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38

Bellver-Cebreros, Consuelo, and Marcelo Rodriguez-Danta. "Internal conical refraction in biaxial media and graphical plane constructions deduced from Möhr’s method." Optics Communications 212, no. 4-6 (November 2002): 199–210. http://dx.doi.org/10.1016/s0030-4018(02)02009-6.

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39

Davydycheva, Sofia, and Alexandr Kaminsky. "Triaxial induction logging: New interpretation method for biaxial anisotropic formations — Part 1." Interpretation 4, no. 2 (May 1, 2016): SF151—SF164. http://dx.doi.org/10.1190/int-2015-0136.1.

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Due to recent advances in resistivity well logging theory and practice, new triaxial induction tools sensitive to resistivity anisotropy have been developed. We have used the new sensitivities of these tools and developed 1D-3D inversion schemes capable to reveal details of highly laminated shale reservoirs. The ability to simulate responses of the new tools to arbitrary anisotropic 3D media is key to their successful application. We have examined a new fast 1D electromagnetic modeling method to simulate triaxial logging tool responses. The method is used as a forward engine for a new 1D inversion scheme for anisotropic formation parameters. An important new feature of the modeling method is its ability to model new tool responses to biaxial anisotropic medium, whose anisotropy tensor has up to three different principal values. This feature is particularly useful to evaluate anisotropic and fractured formations. We have also developed a universal medium-independent 3D modeling technique that can simulate new-generation tool responses in arbitrary 3D media including fracturing, and we used it as a full 3D inversion engine. Synthetic responses and several 1D-3D inversion results for a practical triaxial induction tool illustrate new features of the resistivity logs and their applications. The new 3D inversion does not require any preprocessing borehole correction, which can introduce significant errors at bed boundaries and in thin laminations. As a result, a higher spatial resolution of the tool can be provided. The new method was used to demonstrate and exploit high sensitivities of triaxial tensor measurement to all three principal values of the conductivity tensor.

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40

Medina, F., M. Horno, and H. Baudrand. "Generalized spectral analysis of planar lines on layered media including uniaxial and biaxial dielectric substrates." IEEE Transactions on Microwave Theory and Techniques 37, no. 3 (March 1989): 504–11. http://dx.doi.org/10.1109/22.21621.

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41

Abdulhalim, I. "Analytic formulae for the refractive indices and the propagation angles in biaxial and gyrotropic media." Optics Communications 157, no. 1-6 (December 1998): 265–72. http://dx.doi.org/10.1016/s0030-4018(98)00475-1.

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42

Chen, C. J., A. Lien, and M. I. Nathan. "4 × 4 and 2 × 2 matrix formulations for the optics in stratified and biaxial media." Journal of the Optical Society of America A 14, no. 11 (November 1, 1997): 3125. http://dx.doi.org/10.1364/josaa.14.003125.

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43

Cheng, Qiang, and Tie Jun Cui. "Electromagnetic interactions between a line source and anisotropic biaxial media with partially negative constitutive parameters." Journal of Applied Physics 98, no. 7 (October 2005): 074903. http://dx.doi.org/10.1063/1.2067705.

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44

Maldonado, Theresa A., and Thomas K. Gaylord. "Light propagation characteristics for arbitrary wavevector directions in biaxial media by a coordinate-free approach." Applied Optics 30, no. 18 (June 20, 1991): 2465. http://dx.doi.org/10.1364/ao.30.002465.

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45

Faria, J. A. Brandao. "A perturbation approach to the analysis of index ellipsoid deformations in biaxial and uniaxial media." Microwave and Optical Technology Letters 6, no. 11 (September 5, 1993): 657–60. http://dx.doi.org/10.1002/mop.4650061114.

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46

ZOBOLI, M., and S. SELLERI. "FINITE ELEMENT ANALYSIS OF TE AND TM MODES IN NONLINEAR PLANAR WAVEGUIDES." Journal of Nonlinear Optical Physics & Materials 03, no. 01 (January 1994): 101–16. http://dx.doi.org/10.1142/s0218199194000109.

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A general approach based on the finite element method for analyzing optical waves guided by dielectric planar waveguides with arbitrary nonlinear media and with arbitrary refractive index distribution is considered. A complete transverse-electric and transverse-magnetic mode analysis is presented and TM polarization solutions are obtained without approximations on the biaxial nature of the nonlinear refractive index. Solution convergence and stability is discussed and both film-guided and surface-guided modes are presented for symmetrical and asymmetrical structures. Bistability and hysteresis phenomena have been investigated for TE as well as for TM modes.

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47

Shi, Chong, Kai Hua Chen, Sheng Nian Wang, and Hai Li Wang. "Research on Microstructure Statistical Model of Soil-Rock Mixture." Applied Mechanics and Materials 353-356 (August 2013): 28–33. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.28.

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Abstract: Soil-rock mixture is one of the complex geological bodies, in which microstructure is critical to determine its mechanical property. So it is of great significance to establish a statistical model on the basis of statistical recognition of microstructure of this media. Digital images taken on-site and Autocad is used here to conduct recognition of soil and rock. Rock is equivalent to random polygon in this paper. Taking approximate ellipse as reference, the statistical characteristics of long axis,short axis ,flattening and boundary roughness can be obtained. A stochastic model is established on this basis. Biaxial compression test curves are attained by digital image model and rock stochastic model confirm the effectiveness of statistical model of long structure in soil-rock mixture and the method of stochastic media generation.

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48

Liu, Haotuo, Yang Hu, Qing Ai, Ming Xie, and Xiaohu Wu. "Spontaneous emission modulation in biaxial hyperbolic van der Waals material." Journal of Applied Physics 132, no. 17 (November 7, 2022): 175105. http://dx.doi.org/10.1063/5.0120203.

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As a natural van der Waals crystal, α-MoO3 has excellent in-plane hyperbolic properties and essential nanophotonics applications. However, its tunable properties are generally neglected. Here, we achieve effective modulation of spontaneous emission (SE) from a single-layer flat plate by changing the crystal directions. Numerical results and theoretical analysis show that α-MoO3 exhibits good tunability when the crystal directions of α-MoO3 are different in y– z or x– y planes. A modulation factor of more than three orders of magnitude is obtained at 634 cm−1. This phenomenon is caused by the excitation of hyperbolic phonon polaritons in α-MoO3 at specific bands. However, when the crystal directions of α-MoO3 are different in the x– z plane, the SE of the material exhibits strong angle independence. Additionally, for the semi-infinite α-MoO3 flat structure, we determine the distribution of the modulation factor of SE using the wavenumber and rotation angle. Finally, we extend the calculation results from semi-infinite media to finite thickness films. We obtain the general evolution law of the peak angle of the modulation factor with thickness, increasing the modulation factor to approximately 2000, which exceeds the maximum modulation factor observed in previous works by 48 times. We believe this work could guide the SE modulation of anisotropic materials and benefit the field of micro-/nano-lasers and quantum computing.

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49

Chen, C. J., A. Lien, and M. I. Nathan. "$\bf 4\times 4$ Matrix Method for Biaxial Media and Its Application to Liquid Crystal Displays." Japanese Journal of Applied Physics 35, Part 2, No. 9B (September 15, 1996): L1204—L1207. http://dx.doi.org/10.1143/jjap.35.l1204.

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50

Davidson, R., S. Charap, and R. Simmons. "Vector combined preisach model with a biaxial switching operator for simulation of unoriented thin-film media." Journal of Magnetism and Magnetic Materials 155, no. 1-3 (March 1996): 13–15. http://dx.doi.org/10.1016/0304-8853(96)00676-2.

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