Bibliographies thématiques / Anisotopy

Littérature scientifique sur le sujet « Anisotopy »

Auteur : Grafiati

Publié le 4 mai 2024

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Articles de revues sur le sujet "Anisotopy":

Engelhorn, Tobias, Georg Michelson, Simone Waerntges, Marlen Otto, Ahmed El-Rafei, Tobias Struffert et Arnd Doerfler. « Changes of Radial Diffusivity and Fractional Anisotopy in the Optic Nerve and Optic Radiation of Glaucoma Patients ». Scientific World Journal 2012 (2012) : 1–5. http://dx.doi.org/10.1100/2012/849632.

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Purpose of this study was to evaluate with diffusion-tensor imaging (DTI) changes of radial diffusivity (RD) and fractional anisotropy (FA) in the optic nerve (ON) and optic radiation (OR) in glaucoma and to determine whether changes in RD and FA correlate with disease severity. Therefore, glaucoma patients and controls were examined using 3T. Regions of interest were positioned on RD and FA maps, and mean values were calculated for ON and OR and correlated with optic nerve atrophy and reduced spatial-temporal contrast sensitivity (STCS) of the retina. We found, that RD in glaucoma patients was significantly higher in the ON (0.74 ± 0.21 versus 0.58 ± 0.17⋅10−3 mm2 s−1;P<0.05) and OR (0.79 ± 0.23 versus 0.62 ± 0.14⋅10−3 mm2 s−1;P<0.05) compared to controls. Aside, FA was significantly decreased (0.48 ± 0.15 versus 0.66 ± 0.12 and 0.50 ± 0.20 versus 0.66 ± 0.11;P<0.05). Hereby, correlation between changes in RD/FA and optic nerve atrophy/STCS was observed (r>0.77). In conclusion, DTI at 3 Tesla allows robust RD and FA measurements in the ON and OR. Hereby, the extent of RD increase and FA decrease in glaucoma correlate with established ophthalmological examinations.

Yu, R., X. F. Zhang, L. L. He et H. Q. Ye. « Topology of charge density and elastic anisotropy of Ti3SiC2 polymorphs ». Journal of Materials Research 20, n^o 5 (mai 2005) : 1180–85. http://dx.doi.org/10.1557/jmr.2005.0145.

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Using an all-electron, full potential first-principles method, we have investigated the topology of charge density and elastic anisotropy of Ti3SiC2 polymorphs comparatively. By analyzing the charge density topology, it was found that the Ti–Si bonds are weaker in β than in α, resulting in a destabilizing effect and lower Young’s modulus in directions between a and c axes for β. On the other hand, the Si–C bonds (absent in α) are formed in β in the c direction. The formation of the Si–C bonds not only mitigates the destabilizing effect of the weaker Ti–Si bonds, but also results in larger Young’s modulus in the c direction. In contrast to the high elastic anisotrophy, the elastic anisotropy of Ti3SiC2 is very low.

Peregudov, Dmitriy, Anatoly Soloviev, Igor Yashin et Victor Shutenko. « GALACTIC COSMIC RAY ANISOTROPY MODELLING ». Solar-Terrestrial Physics 6, n^o 1 (1 avril 2020) : 29–34. http://dx.doi.org/10.12737/stp-61202003.

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We calculate the angular distribution of cosmic rays at a given point of the heliosphere under the assumption that the incoming flux from outer space is isotropic. The static magnetic field is shown to cause no anisotropy provided that the observation point is situated out of the trapped particle area. We consider a coronal ejection model in the form of a static cylinder with an axial homogeneous magnetic field inside. We calculate angular distribution samples in the trapped particle area (inside the cylinder) and show that there is a certain cone of directions with a reduced flux. For the same model with the moving cylinder, the angular distribution samples are calculated for different positions of the observation point outside the cylinder. Anisotropy of order of the ejection to light velocity ratio is shown to arise. The calculated samples are in qualitative agreement with URAGAN muon hodoscope data.

Byun, Joongmoo. « Automatic Velocity Analysis Considering Anisotropy ». Journal of the Korean Society of Mineral and Energy Resources Engineers 50, n^o 1 (2013) : 11. http://dx.doi.org/10.12972/ksmer.2013.50.1.011.

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Yurov, V. M. « ANISOTROPY OF THE SURFACE OF CARBON MATERIALS ». Eurasian Physical Technical Journal 18, n^o 3 (37) (24 septembre 2021) : 15–24. http://dx.doi.org/10.31489/2021no3/15-24.

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In this work, a model of the surface layer of perfect single crystals is used and the role of surface energy in physical processes occurring in the region of nanosized carbon materials is clarified. Of these, diamond, graphite, carbyne and fullerenes have been investigated. The thickness of the surface layer of diamond with cubic symmetry is 8.2 nm and is a nanostructure. The average size of the synthesized nanodiamond is of the order of ~ 8 nm. The value of the surface energy σhkl calculated by us along the diamond planes (100), (110), and (111) is in good agreement with experiment and other calculations. The thickness of the surface layer of graphite along the a axis is equal to R(I)a = 8.0 nm and also represents a nanostructure. But along the c axis we have a layer thickness of about 1.5 nm and the number of monolayers is only 2. On this c axis, graphite can be created a monolayer by turning it into graphene. The σhkl value calculated by us along the a and c planes of graphite is 25957 and 5515 mJ/m2 , respectively. Carbines represent a polymeric polyyne or cumulene chain composed of sp-hybridized carbon atoms. If we imagine that the thickness of the surface layer of carbyne is stretched into a one-dimensional chain along the c axis, then the length of this chain is up to 200 nm for α-carbyne. The thickness of the surface layer of fullerenes significantly exceeds the thickness of the surface layer of pure metals. The surface energy of fullerenes σhkl increases with an increase in the number of carbon atoms С36 → С96. It also changes in the series (111) → (100) → (110).

Shimada, Hikaru, Ayumi Kiyama, Panitha Phulkerd et Masayuki Yamaguchi. « Anomalous Optical Anisotropy of Oriented Cellulose Triacetate Film ». Nihon Reoroji Gakkaishi 45, n^o 1 (2016) : 19–24. http://dx.doi.org/10.1678/rheology.45.19.

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Rongkonusa, Melisa, Gerald Tamuntuan et Guntur Pasau. « Analisis Anisotropi Suseptibilitas Magnetik Batuan Beku Lengan Utara Sulawesi ». Jurnal MIPA 6, n^o 1 (2 mai 2017) : 8. http://dx.doi.org/10.35799/jm.6.1.2017.15846.

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Telah dilakukan penelitian untuk menentukan pola anisotropi suseptibilitas magnetik dan status singkapan batuan beku dari pola yang diperoleh. Pengukuran anisotropi suseptibilitas magnetic dilakukan pada lima sampel batuan beku dari Sulawesi Utara menggunakan Bartington MS2B. Arah pengukuran sampel disesuaikan dengan desain Tauxe. Hasilnya menunjukkan bahwa suseptibilitas maksimum terdistribusi disekitar arah utara dan timur. Sedangkan suseptibilitas intermediet dan minimum terdistribusi disekitar Utara-Timur dan Timur-Selatan. Elipsoida suseptibilitas cenderung prolate atau lebih lonjong. Batuan beku yang dianalisis merupakan kelompok batuan terobosan yang mekanisme lelehannya terjadi secara vertikal.A research has been conducted to determine the anisotropic pattern of magnetic susceptibility and the status of igneous rocks exposure from the obtained pattern. We have measured the anisotropy of magnetic susceptibility on five samples of igneous rock from North Sulawesi by Bartington MS2B. The position of samples were adjusted according to the Tauxe’s design. The result shows that the maximum susceptibility is distributed around northward and eastward, while the intermediate and minimum susceptibility are distributed around nortward-eastward and eastward-southward. The susceptibility ellipsoid tends to be prolate or more oval. This shows that the igneous rocks that have been analyzed are group of intrusive rocks which melting mechanism occurs through vertical fracture.enetie

Pranowo, Waskito, et Sonny Winardhi. « Application of Velocity Variation with Angle (VVA) Method on an Anisotropic Model with Thomsen Delta Anisotropy Parameters ». Jurnal Geofisika 16, n^o 2 (19 septembre 2018) : 6. http://dx.doi.org/10.36435/jgf.v16i2.371.

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Anisotropic properties will influence seismic propagation, for example it will affect wave velocity. One of well-known anisotropi equation for Transversaly Isotropic media is weak anisotropy with Thomsen's notation. Supriyono [2011] tried to estimate all of these variables by using velocity variation with angle (VVA) attribute. This research uses synthetic data, which is CMP Gather to know limitations of VVA attribute, to identify the error values, and to determine the best indicator of anisotropic eect. This research also uses another analysis method, which is grid search inversion to estimate VP0. From this research, Both VVA and grid search invesion still produce signcant error. The effects which will appear because of anisotropic property's presence are hockey-stick and over NMO-stretching.

Maki, Yasuyuki, Hideki Okamura et Toshiaki Dobashi. « Optical Anisotropy and Molecular Orientation of Neutralized Curdlan Gels ». Nihon Reoroji Gakkaishi 45, n^o 1 (2016) : 65–69. http://dx.doi.org/10.1678/rheology.45.65.

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Danian, Shi, Dong Yingjun, Jiang Mei, Ma Kaiyi, G. Poupinet, A. Him et A. Nercessian. « Shear wave anisotropy beneath the Qinghai and Tibetan Plateau ». Global Tectonics and Metallogeny 7, n^o 1 (1 janvier 1999) : 15–24. http://dx.doi.org/10.1127/gtm/7/1999/15.

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Thèses sur le sujet "Anisotopy":

Sinn, Matthew T. (Matthew Thomas). « Surface roughness anisotopy on mismatched InAlAs/InGaAs/InP heterostructures ». Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11457.

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Luo, Jianjun. « Development of anisotropic Nd-Fe-B powders from sintered magnets by hydrogen decrepitation/desorption process ». Grenoble 1, 2009. http://www.theses.fr/2009GRE10250.

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L'objectif de la thèse était d'étudier le procédé de Décrépitation à l'Hydrogène (HD) en tant que moyen de recycler les rebus d'aimants frittés Nd-Fe-B en poudres fortement coercitives et anisotropes, pour l'industrie d'aimants liés. Le procédé consiste à appliquer une première hydruration, afin de réduire le matériau massif en poudre, grâce à l'expansion du volume de la maille. Des traitements de désorption de l'hydrogène et de recuit sont ensuite nécessaires pour rétablir les caractéristiques initiales du précurseur (coercivité et anisotropie). Les différentes étapes du procédé HD ont été étudiées à partir d'aimants frittés (NdDy)2(FeCoNbCu)14B utilisés comme précurseurs. Les caractéristiques d'absorption et de désorption de l'hydrogène ont été étudiées par Calorimétrie Différentielles (DSC) et par des mesures de cinétique d'hydruration. Des mesures magnétothermiques ont permis d'analyser l'effet de la présence d'hydrogène résiduel sur les propriétés magnétiques des poudres (NdDy)-(FeCoNbCu)-B. La thèse se focalise sur l'impact des conditions expérimentales appliquées, telles que la température de décrépitation, l'application d'un double cycle de décrépitation, la température de désorption, l'application d'un champ magnétique pendant la désorption de l'hydrogène, la température de recuit, etc. Sur les propriétés magnétiques des poudres (NdDy)-(FeCoNbCu)-B. Parmi ces facteurs, les températures d'absorption et de désorption, et la température de recuit jouent un rôle prépondérant sur les propriétés magnétiques. La double décrépitation améliore la distribution de taille des poudres. La désorption de l'hydrogène sous le champ magnétique réduit le contenu d'hydrogène résiduel des poudres anisotropes, et conduit ainsi à une augmentation de la rémanence (Br). Après l'optimisation des étapes successives du procédé, des poudres anisotropes présentant des propriétés satisfaisantes ont été obtenues : Br = 10. 29 kGs (1. 029 T), Hcj = 14. 3 kOe (1138 kA/m), (BH)Max = 21. 67 MGOe (172. 5 kJ/m3). Les propriétés magnétiques initiales des aimants frittés (NdDy)-(FeCoNbCu)-B ont été restaurées respectivement à 93 %, 46 % et 74 %
The purpose of this thesis was to study the Hydrogen Decrepitation (HD) process as a way to recycle waste scraps of Nd-Fe-B sintered magnets into highly coercitive and anisotropic powders, for the industry of bonded magnets. The process consists in a first hydrogenation, the bulk material being reduced into powder, as a result of the large volume expansion of the lattice. Then Hydrogen Desorption and annealing treatments are requested to restore the initial characteristics of the precursor (coercivity and anisotropy). Starting with sintered (NdDy)2-(FeCoNbCu)14-B magnets as a precursor, the different steps of the HD process have been studied. Differential Scanning Calorimetry (DSC) and Hydrogenation Kinetics measurements were used to investigate the hydrogen absorption and desorption characteristics. Thermal-magnetization measurement was used to investigate the effect of the residual hydrogen content on magnetic properties of the anisotropic (NdDy)-(FeCoNbCu)-B powders. The thesis focuses on the effect of the applied experimental conditions such as hydrogen decrepitation temperature, twice hydrogen decrepitation cycle, hydrogen desorption temperature, magnetic field during hydrogen desorption, annealing temperature etc. . . On magnetic properties of (NdDy)-(FeCoNbCu)-B powders. Among these factors, hydrogen absorption temperature, hydrogen desorption temperature and annealing temperature play important roles on the magnetic properties. Twice hydrogen decrepitation improves the size distribution of the powders. Hydrogen desorption under magnetic field reduces the residual hydrogen content of the anisotropic powders, resulting in raising their remanence (Br). After optimization of the successive steps of the process, anisotropic powders with good properties have been achieved: Br = 10. 29 kGs (1. 029 T), Hcj = 14. 3 kOe (1138 kA/m), (BH)max = 21. 67 MGOe (172. 5 kJ/m3). It corresponds respectively to 93%, 46% and 74% of the magnetic properties of the precursor sintered (NdDy)-(FeCoNbCu)-B permanent magnets

Adams, Amy Lynn. « Permeability anisotropy and resistivity anisotropy of mechanically compressed mudrocks ». Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90036.

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Thesis: Ph. D. in Geotechnical and Geoenvironmental Engineering, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 313-322).
Permeability anisotropy (the ratio of the horizontal to vertical permeability) is an important parameter used in sedimentary basin models and geotechnical design to model fluid flow, locate hydrocarbon reserves and estimate stress and pressure evolution. The magnitude of the permeability anisotropy for a given mudrock is difficult to measure; further, whether the permeability anisotropy is a constant value or evolves with the basin state is of active debate. This thesis experimentally investigates the development of permeability anisotropy in mechanically compressed mudrocks. A novel measurement method is developed using resedimented cubic specimens. The permeability anisotropy of Resedimented Boston Blue Clay (RBBC) is systematically measured to determine both the magnitude and evolution of the permeability anisotropy. The permeability anisotropy predicted using measurements of the mudrock fabric is compared with the measured permeability anisotropy to understand the relationship between fabric evolution and permeability anisotropy. Finally, resistivity anisotropy is compared with permeability anisotropy to reveal useful field correlations. The results of the RBBC study are contrasted with additional measurements made using mudrocks covering a range of plasticity, clay fraction and mineralogical composition. The permeability anisotropy and the conductivity anisotropy (inverse of the resistivity anisotropy) of uniform RBBC increase from 1.2 to 1.9 as the porosity decreases from 0.49 to 0.36. The permeability decreases by over one order of magnitude and the formation factor triples over this porosity range. Platy particles rotate from ~ 42 to 28 degrees to the horizontal, driving permeability anisotropy development. Further decreasing the porosity of RBBC below porosity 0.36 decreases both the permeability anisotropy and the conductivity anisotropy. Finally, the conductivity anisotropy is shown to equal to the permeability anisotropy within +/-20%. This general behaviour is characteristic of all mudrocks studied. Though small (<2), the permeability anisotropy of uniform mudrocks can significantly increase the permeability anisotropy of larger systems, as shown through layered system models. These models also reveal that the large scale conductivity anisotropy is not equal to the permeability anisotropy, though the relationship identified for uniform mudrocks may still be useful for sites with high measurement resolution.
by Amy Lynn Adams.
Ph. D. in Geotechnical and Geoenvironmental Engineering

Rostamabad, Houshang Mansouri. « Distinguishing stress-induced anisotropy from fracture-induced anisotropy, and the implications of stress-induced anisotropy for time-lapse seismic ». Thesis, Heriot-Watt University, 2006. http://hdl.handle.net/10399/108.

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Ouahioune, Nedjma. « MOKE set-upto measure magnetic anisotropy : MOKE set-upto measure magnetic anisotropy ». Thesis, Uppsala universitet, Materialfysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414388.

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Wack, Michael Richard. « Anisotropy of magnetic remanence ». Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-145717.

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Robson, Martin. « The Cosmic Anisotropy Telescope ». Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319559.

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Wheatley, Richard James. « The anisotropy of repulsion ». Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359829.

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Eisenbach, Markus. « Magnetic anisotropy in nanostructures ». Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364862.

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Walsh, James Paul Slater. « Anisotropy in molecular magnetism ». Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/anisotropy-in-molecular-magnetism(11474b91-0d3d-4b0a-97cd-214d1713674e).html.

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A collection of studies are reported that focus on the examination of exchange interactions in complexes containing paramagnetic ions with a large magnetic anisotropy. A number of complementary techniques are used to analyse the complicated systems that arise, including high-field high-frequency electron paramagnetic resonance, inelastic neutron scattering, SQUID magnetometry, and ab initio calculations. The nuclearity of the complexes ranges from dimetallic, to trimetallic, to octametallic. A family of five water- and carboxylate-bridged nickel(II) dimetallics are the focus of a magneto-structural correlation study that succeeds in measuring the magnitude of the exchange interaction despite dominating effects from large zero-field splitting effects. Similar work is reported for four cobalt(II) analogues of these compounds, with the relationship between exchange interactions and geometry also being probed by pressure INS. Charge density studies that combine high resolution X-ray and neutron diffraction studies are reported on cobalt and nickel analogues from the same family of dimetallics, revealing strong evidence for non-direct exchange. A family of four trimetallic triangle complexes containing two nickel(II) ions and one chromium(III) ion bridged by a central fluoride and a total of six carboxylates are reported, and the exchange interactions are elucidated from a global model that accounts for the low-field magnetic, heat capacity, and EPR data. Two new octametallic vanadium(III) wheels—where each pair of adjacent metals are bridged by a fluoride and two carboxylates—are reported along with preliminary results from magnetic measurements and solid state proton NMR spectra, which reveal significant field-dependent effects arising from level crossings at high fields.

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Livres sur le sujet "Anisotopy":

International Workshop on Seismic Anisotropy (6th 1994 Trondheim, Norway). Seismic anisotropy. Tulsa, Okla : Society of Exploration Geophysicists, 1996.

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Negi, J. G. Anisotropy in geoelectromagnetism. Amsterdam : Elsevier, 1989.

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United States. National Aeronautics and Space Administration. Map Project Office., dir. MAP, microwave anisotropy probe. Greenbelt, MD : MAP Project Office, 1997.

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Lemu, Hirpa. Anisotropy research : New developments. Hauppauge, N.Y : Nova Science Publishers, 2011.

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M, Hood G., AECL Research et Atomic Energy of Canada Limited., dir. -Zr self-diffusion anisotropy. Chalk River, Ont : Reactor Materials Research Branch, Chalk River Laboratories, 1994.

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Tarling, D. H. The magnetic anisotropy of rocks. London : Chapman & Hall, 1993.

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Babuska, V., et M. Cara. Seismic Anisotropy in the Earth. Dordrecht : Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3600-6.

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Özarslan, Evren, Thomas Schultz, Eugene Zhang et Andrea Fuster, dir. Anisotropy Across Fields and Scales. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-56215-1.

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Babuška, Vladislav. Seismic anisotropy in the earth. Dordrecht, The Netherlands : Kluwer Academic Publishers, 1991.

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Boehler, Jean-Paul, et Akhtar S. Khan, dir. Anisotropy and Localization of Plastic Deformation. Dordrecht : Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0.

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Chapitres de livres sur le sujet "Anisotopy":

Brosius, Alexander, et Dorel Banabic. « Anisotropy ». Dans CIRP Encyclopedia of Production Engineering, 1–8. Berlin, Heidelberg : Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-642-35950-7_6679-3.

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Cheng, Alexander H. D. « Anisotropy ». Dans Poroelasticity, 171–87. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-25202-5_5.

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Brosius, Alexander, et Dorel Banabic. « Anisotropy ». Dans CIRP Encyclopedia of Production Engineering, 66–72. Berlin, Heidelberg : Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-53120-4_6679.

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Brosius, Alexander, et Dorel Banabic. « Anisotropy ». Dans CIRP Encyclopedia of Production Engineering, 40–47. Berlin, Heidelberg : Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-20617-7_6679.

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Lekner, John. « Anisotropy ». Dans Theory of Reflection of Electromagnetic and Particle Waves, 141–53. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-015-7748-9_7.

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Maceri, Aldo. « Anisotropy ». Dans Theory of Elasticity, 635–61. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11392-5_7.

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Chen, Zengtao, et Cliff Butcher. « Anisotropy ». Dans Micromechanics Modelling of Ductile Fracture, 75–100. Dordrecht : Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6098-1_3.

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Gooch, Jan W. « Anisotropy ». Dans Encyclopedic Dictionary of Polymers, 41. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_669.

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Wackernagel, Hans. « Anisotropy ». Dans Multivariate Geostatistics, 62–65. Berlin, Heidelberg : Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05294-5_9.

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Wackernagel, Hans. « Anisotropy ». Dans Multivariate Geostatistics, 60–63. Berlin, Heidelberg : Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-03550-4_9.

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Actes de conférences sur le sujet "Anisotopy":

Schroeder, W. A., M. D. Dvorak, D. R. Andersen et A. L. Smirl. « The anisotopy of χ(3)(−ω ; ω, −ω,ω) in zincblende semiconductors ». Dans OSA Annual Meeting. Washington, D.C. : Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.mss1.

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We investigate the anisotropy of the degenerate, instantaneous, third-order, bound-electronic nonlinearity χ(3) ijkl in zincblende semiconductors by monitoring the rotated polarization component of the transmitted radiation in both single-and two-beam (pump–probe) experiments as a function of the crystal orientation and the incident pulse intensity. The measurements were conducted on a variety of semiconductors (GaAs, InP, CdTe, ZnSe, and GaP) by using an amplified, 1-ps Styryl 13 dye laser system operating at 950 nm. The results showed that the induced nonlinear polarization rotation of the transmitted signal due to the anisotropy σ of χ(3), defined as σ = χ1111 − (χ1122 + χ1221 + χ1212), has the expected periodic dependence on crystal rotation for light propagating along the (001) and (110) crystallographic axes. For propagation along the (111) axis no polarization rotation was observed—a result that concurs with the fact that χ(3) is isotropic in this direction. A time-delayed two-beam pump-probe measurement showed that the nonlinearity is instantaneous to within the 1-ps experimental resolution. In addition, the third-order of this nonlinear effect was confirmed in the pump-probe experiment by the dependence of the signal on the incident fluence. Determination of the components of the χ(3) tensor by using this experimental technique will be discussed.

Hagiwara, Teruhiko. « Predicting Permeability Anisotropy from Resistivity Anisotropy ». Dans Unconventional Resources Technology Conference. Tulsa, OK, USA : American Association of Petroleum Geologists, 2016. http://dx.doi.org/10.15530/urtec-2016-2459699.

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Weldeselassie, Yonas T., Saba El-Hilo et M. S. Atkins. « Shape anisotropy : tensor distance to anisotropy measure ». Dans SPIE Medical Imaging, sous la direction de Benoit M. Dawant et David R. Haynor. SPIE, 2011. http://dx.doi.org/10.1117/12.878423.

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Hagiwara, Teruhiko. « To estimate permeability anisotropy from resistivity anisotropy ». Dans SEG Technical Program Expanded Abstracts 2016. Society of Exploration Geophysicists, 2016. http://dx.doi.org/10.1190/segam2016-13174233.1.

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Luh, Peter C. « Layering anisotropy ». Dans SEG Technical Program Expanded Abstracts 1992. Society of Exploration Geophysicists, 1992. http://dx.doi.org/10.1190/1.1822175.

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Edison, E. E. « Statistical Anisotropy ». Dans The 7th International Symposium on Recent Advances in Exploration Geophysics (RAEG 2003). European Association of Geoscientists & Engineers, 2003. http://dx.doi.org/10.3997/2352-8265.20140051.

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Sinha, Satish, Vladimir Tertychnyi et Mike Ammerman. « Predicting S‐wave anisotropy from P‐wave anisotropy ». Dans SEG Technical Program Expanded Abstracts 2005. Society of Exploration Geophysicists, 2005. http://dx.doi.org/10.1190/1.2144290.

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Metwally, Yasser, Kefei Lu et Evgeny M. Chesnokov. « Gas shale ; Comparison between permeability anisotropy and elasticity anisotropy ». Dans SEG Technical Program Expanded Abstracts 2013. Society of Exploration Geophysicists, 2013. http://dx.doi.org/10.1190/segam2013-0761.1.

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Sayers*, Colin M., et Lennert D. den Boer. « Shale anisotropy and the elastic anisotropy of clay minerals ». Dans SEG Technical Program Expanded Abstracts 2014. Society of Exploration Geophysicists, 2014. http://dx.doi.org/10.1190/segam2014-0114.1.

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M. Lyaknovitsky, F. « Apparent anisotropy coefficients ». Dans 54th EAEG Meeting. European Association of Geoscientists & Engineers, 1992. http://dx.doi.org/10.3997/2214-4609.201410635.

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Rapports d'organisations sur le sujet "Anisotopy":

Hart et Zulfiqar. L52324 Characterization of Anisotropic Pipe Steel Stress-Strain Relationships Influence On Strain Demand. Chantilly, Virginia : Pipeline Research Council International, Inc. (PRCI), novembre 2011. http://dx.doi.org/10.55274/r0010014.

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Résumé :

This report summarizes a PRCI research project aimed at evaluation of the effects of anisotropy and the shape of pipe steel stress-strain relationships on pipeline strain demand for X80 and X100 UOE pipe. The research included: a review of pipeline industry literature on the subject matter; a discussion of pipe steel plasticity concepts for UOE pipe; characterization of the anisotropy and stress-strain curve shapes for both conventional and high strain pipe steels; development of representative analytical X80 and X100 stress-strain relationships; and evaluation of a large matrix of ground-movement induced pipeline deformation scenarios to evaluate key pipe stress-strain relationship shape and anisotropy parameters. One goal of this research was to apply the findings toward guidance for supplemental pipe material specifications aimed at minimizing undesirable effects of anisotropy and stress-strain curve shape on pipe deformations under displacement-controlled loads.

Pechan, M. J. Magnetic multilayer interface anisotropy. Office of Scientific and Technical Information (OSTI), janvier 1991. http://dx.doi.org/10.2172/5158883.

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Pechan, M. J. Magnetic multilayer interface anisotropy. Office of Scientific and Technical Information (OSTI), janvier 1992. http://dx.doi.org/10.2172/6958467.

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Pechan, M. J. Magnetic multilayer interface anisotropy. Office of Scientific and Technical Information (OSTI), janvier 1990. http://dx.doi.org/10.2172/6554380.

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Hart, M. LLNL Explosives Anisotropy Research. Office of Scientific and Technical Information (OSTI), décembre 2022. http://dx.doi.org/10.2172/1959450.

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Li, Liang-shi. Anisotropy in CdSe quantum rods. Office of Scientific and Technical Information (OSTI), janvier 2003. http://dx.doi.org/10.2172/827094.

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Evans, Jordan Andrew. Nuclear Reactor Materials and Anisotropy. Office of Scientific and Technical Information (OSTI), décembre 2019. http://dx.doi.org/10.2172/1578013.

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Toney, Michael F. High Anisotropy CoPtCrB Magnetic Recording Media. Office of Scientific and Technical Information (OSTI), juin 2003. http://dx.doi.org/10.2172/813356.

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Barros, Kipton, et Hao Zhang. Generalized spin dynamics and anisotropy renormalization. Office of Scientific and Technical Information (OSTI), octobre 2023. http://dx.doi.org/10.2172/2008255.

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Bratkovskaya, E. L., O. V. Teryaev et V. D. Toneev. Anisotropy of dilepton emission from nuclear collisions. Office of Scientific and Technical Information (OSTI), novembre 1994. http://dx.doi.org/10.2172/10106081.

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