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Articles de revues sur le sujet « Nuclei anisotropici »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

Sah, Mohit Raj, and Suvodip Mukherjee. "Multi-tracer Correlated Stacking: A Novel Way to Discover Anisotropy in nHz Stochastic Gravitational-wave Background." Astrophysical Journal 985, no. 1 (2025): 92. https://doi.org/10.3847/1538-4357/adbf92.

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Abstract The isotropic stochastic gravitational-wave background (SGWB) generated by a population of supermassive black hole binaries (SMBHBs) provides a unique window into their cosmic evolution. In addition to the isotropic power spectrum, the anisotropic component of the signal carries additional information about the supermassive black holes (BHs) and host galaxy connection. The measurement of this signal is usually carried out by angular power spectra, which is only a sufficient measure for a Gaussian and statistically isotropic distribution of SMBHBs, where the statistical properties of a

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Mahapatra, Premachand, Chiranjeeb Singha, Ayush Hazarika, and Prasanta Kumar Das. "Implications of Fermionic Dark Matter Interactions on Anisotropic Neutron Stars." Astrophysical Journal 985, no. 1 (2025): 74. https://doi.org/10.3847/1538-4357/adc918.

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Abstract The presence of dark matter (DM) within a neutron star (NS) can substantially influence the macroscopic properties. It is commonly assumed that the pressure inside an NS is isotropic, but in reality, pressure is locally anisotropic. This study explores the properties of anisotropic NS with a subfraction of DM (isotropic) trapped inside. Implementing a two-fluid formalism with three distinct classes of equation of state: AP3 (a realistic nucleon–nucleon interaction model), BSk22 (modeling atomic nuclei and neutron matter), and MPA1 (considering relativistic effects in nuclear interacti

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Gijón, A., F. J. Gálvez, F. Arias de Saavedra, and E. Buendía. "Anisotropic multicluster model in light nuclei." Journal of Physics G: Nuclear and Particle Physics 43, no. 6 (2016): 065103. http://dx.doi.org/10.1088/0954-3899/43/6/065103.

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Berggren, Tore. "Anisotropic alpha decay from oriented nuclei." Hyperfine Interactions 75, no. 1-4 (1992): 401–8. http://dx.doi.org/10.1007/bf02398996.

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SOHEYLI, S., H. NOSHAD, and M. LAMEHI-RACHTI. "MEASUREMENT OF FISSION FRAGMENT ANISOTROPIES FOR PROTON-INDUCED FISSION OF TWO PRE-ACTINIDE NUCLEI AT SEVERAL ENERGIES." International Journal of Modern Physics A 22, no. 05 (2007): 1027–37. http://dx.doi.org/10.1142/s0217751x07034428.

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The angular distribution of fission fragments has been measured for proton-induced fission of 197 Au and 209 Bi nuclei at several energies between 25 and 30 MeV using surface-barrier detectors. The measured anisotropies are found to be in agreement with the predictions of the standard saddle-point statistical model. The measured anisotropies for neither of the nuclei show any anomalous behavior as a function of both energy and entrance channel mass asymmetry. The fission cross sections of 197 Au and 209 Bi nuclei were also measured and compared with that of the previous works.

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Pogorelov, Ilya V., and Henry E. Kandrup. "Anisotropic distribution functions for relativistic galactic nuclei." Physical Review E 53, no. 2 (1996): 1375–81. http://dx.doi.org/10.1103/physreve.53.1375.

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7

Brandt, William Nielsen. "Multiwavelength surveys for Active Galactic Nuclei." Proceedings of the International Astronomical Union 15, S356 (2019): 11. http://dx.doi.org/10.1017/s1743921320002471.

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AbstractMost of what we know about active galactic nuclei (AGNs) has been driven, or at least strongly shaped, by our methods for finding them, and multiwavelength AGN surveys have achieved remarkable successes in recent decades. I will present a broad, and thus necessarily shallow, review of such multiwavelength AGN surveys. I will first present some brief introductory points on, e.g., general survey approaches, AGN luminosities, host galaxies, and anisotropic emission/obscuration. I will then review many of the key current surveys and their results, separating these into ground-based and spa

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Bu, De-Fu, Pei-Yao Xu, and Bo-Cheng Zhu. "Self-Similar Solution of Hot Accretion Flow with Anisotropic Pressure." Universe 5, no. 4 (2019): 89. http://dx.doi.org/10.3390/universe5040089.

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For the accretion flow in extremely low-luminosity active galactic nuclei, such as ourGalactic center (Sgr A*) and M 87, the collisional mean-free path of ions may be much larger than itsgyroradius. In this case, the pressure parallel to the magnetic field is different from that perpendicularto the field; therefore, the pressure is anisotropic. We study the effects of anisotropic pressure onthe dynamics of accretion flow by assuming the flow is radially self-similar. We find that in the casewhere the outflow is present, the radial and rotational velocities, the sound speed, and the Bernoullipa

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Vavilov, D. E., S. Eggl, Yu D. Medvedev, and P. B. Zatitskiy. "Shape evolution of cometary nuclei via anisotropic mass loss." Astronomy & Astrophysics 622 (January 29, 2019): L5. http://dx.doi.org/10.1051/0004-6361/201834806.

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Context. Breathtaking imagery recorded during the European Space Agency Rosetta mission confirmed the bilobate nature of the nucleus of comet 67P/Churyumov-Gerasimenko. The peculiar appearance of the nucleus is not unique among comets. The majority of cometary cores imaged at high resolution exhibit a similar build. Various theories have been brought forward as to how cometary nuclei attain such peculiar shapes. Aims. We illustrate that anisotropic mass loss and local collapse of subsurface structures caused by non-uniform exposure of the nucleus to solar irradiation can transform initially sp

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Baring, Matthew G. "Anisotropic Effects in Thomson Cascade Models of Active Galactic Nuclei." Symposium - International Astronomical Union 159 (1994): 343. http://dx.doi.org/10.1017/s0074180900175448.

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CGRO observations of high energy γ-rays from active galactic nuclei (AGN) suggest that beaming may be prevalent in these sources. Anisotropic effects in AGN continuum spectra produced by the inverse Compton scattering mechanism are outlined, in particular the resulting spectral breaks and modification of spectral indices that depend strongly on the electron anisotropy and the observational viewing perspective.

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Eitelmann, Sara, Laura Petersilie, Christine R. Rose, and Jonathan Stephan. "Altered Gap Junction Network Topography in Mouse Models for Human Hereditary Deafness." International Journal of Molecular Sciences 21, no. 19 (2020): 7376. http://dx.doi.org/10.3390/ijms21197376.

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Anisotropic gap junctional coupling is a distinct feature of astrocytes in many brain regions. In the lateral superior olive (LSO), astrocytic networks are anisotropic and oriented orthogonally to the tonotopic axis. In CaV1.3 knock-out (KO) and otoferlin KO mice, where auditory brainstem nuclei are deprived from spontaneous cochlea-driven neuronal activity, neuronal circuitry is disturbed. So far it was unknown if this disturbance is also accompanied by an impaired topography of LSO astrocyte networks. To answer this question, we immunohistochemically analyzed the expression of astrocytic con

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12

Park, Sang Yeup, Jun Ho Song, and Young Jin Cho. "Effect of Grain Orientation on the Abnormal Grain Growth with Magetoplumbite Crystal Structure." Materials Science Forum 558-559 (October 2007): 1265–70. http://dx.doi.org/10.4028/www.scientific.net/msf.558-559.1265.

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The nucleation and growth behavior of magentoplombite has been observed during the abnormal grain growth in the presence of liquid phase. Abnormal grain growth was explained in terms of grain orientation due to liquid phase. It has been observed that the nuclei formation for abnormal grain growth was driven by the capillary force due to the liquid phase. Because magnetoplumbite crystal structure has an anisotropic crystal nature, abnormal grain growth with faceted grain shape was observed depending on its chemical composition. The formation of nuclei and particle orientation was important for

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13

GENG, Y. L., D. XU, X. Q. WANG, et al. "EX SITU ATOMIC FORCE MICROSCOPY STUDIES OF GROWTH MECHANISMS OF MANGANESE MERCURY THIOCYANATE CRYSTALS." Surface Review and Letters 11, no. 06 (2004): 491–95. http://dx.doi.org/10.1142/s0218625x04006608.

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Growth mechanisms of the {110} planes of the manganese mercury thiocyanate, MnHg ( SCN )4 (MMTC), crystals have been investigated by using atomic force microscopy (AFM). The results show that spiral dislocation controlled mechanism and two-dimensional (2D) nucleation mechanism operate simultaneously during growth. 2D nuclei are found to cover up the outcrop of dislocation hillocks. Pairs of circular 2D nuclei appear on the wider steps terraces and the slope of 2D nucleation islands. Hillocks introduced by both simple spiral dislocation sources and 2D nucleation are elliptical in shape. It is d

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14

Vandermeer, R. A., and Dorte Juul Jensen. "Effects of Nuclei Clustering on Recrystallization Kinetics." Materials Science Forum 467-470 (October 2004): 193–96. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.193.

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In this work, it is shown that the contiquity ratio, Crr, defined as the fraction of the total grain boundary area of recrystallized grains shared by other recrystallized grains, is a useful experimental parameter for describing the clustering of recrystallization nuclei in partially recrystallized microstructures. Two experimental examples are presented where anisotropic impingement behavior, i.e. non random recrystallized grain distributions, is thought to be important. In the experimental examples, the deviation of Crr from Crr = Vv which is a characteristic of a random distribution, is cle

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15

Yoshida, Michitoshi, Toru Yamada, George Kosugi, Yoshiaki Taniguchi, and Hideaki Mouri. "Circumnuclear Emission-Line Region of the Seyfert Galaxy NGC 5953: Evidence for an Anisotropic Nuclear Radiation Field." Publications of the Astronomical Society of Japan 45, no. 6 (1993): 761–73. https://doi.org/10.1093/pasj/45.6.761.

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Abstract The results of the spectroscopy of the circumnuclear emission-line region of the Seyfert 2 galaxy NGC 5953 are presented. We find that the Seyfert nucleus is surrounded by luminous extended starforming region. Further, we find a high-ionization region at about 4″ north-east from the nucleus. The ionization properties of this high-ionization region are well explained by photoionization due to a power-law continuum source, which provides evidence for anisotropic radiation from the Seyfert nucleus. If this is the case, the intrinsic nuclear ionizing radiation is probably ten-times more l

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16

Mattar, Saba M. "Anisotropic hyperfine interactions of xenon nuclei surrounding a copper atom." Journal of Physical Chemistry 92, no. 12 (1988): 3360–62. http://dx.doi.org/10.1021/j100323a011.

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17

Du, Feng, and Hanchen Huang. "Closed-form theory of nuclei separation on highly anisotropic surfaces." Applied Surface Science 390 (December 2016): 107–10. http://dx.doi.org/10.1016/j.apsusc.2016.08.070.

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18

Xu, Ya-Di. "Anisotropic radiation from accretion disc coronae in active galactic nuclei." Monthly Notices of the Royal Astronomical Society 449, no. 1 (2015): 191–98. http://dx.doi.org/10.1093/mnras/stv290.

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19

Berggren, Tore. "Interpretation of anisotropic alpha emission from oriented odd-mass nuclei." Hyperfine Interactions 43, no. 1-4 (1988): 407–14. http://dx.doi.org/10.1007/bf02398321.

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20

Halle, Bertil. "Spin dynamics of exchanging quadrupolar nuclei in locally anisotropic systems." Progress in Nuclear Magnetic Resonance Spectroscopy 28, no. 2 (1996): 137–59. http://dx.doi.org/10.1016/0079-6565(95)01022-x.

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Halle, B. "Spin dynamics of exchanging quadrupolar nuclei in locally anisotropic systems." Progress in Nuclear Magnetic Resonance Spectroscopy 28 (1996): 137–59. http://dx.doi.org/10.1016/0079-6565(96)90000-x.

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22

Sarwar, Golam, and Jan-e. Alam. "Kinetic evolution and correlation of fluctuations in an expanding quark gluon plasma." International Journal of Modern Physics A 33, no. 08 (2018): 1850040. http://dx.doi.org/10.1142/s0217751x18500409.

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Evolution of spatially anisotropic perturbation created in the system formed after Relativistic Heavy Ion Collisions has been studied. The microscopic evolution of the fluctuations has been examined within the ambit of Boltzmann Transport Equation (BTE) in a hydrodynamically expanding background. The expansion of the background composed of quark gluon plasma (QGP) is treated within the framework of relativistic hydrodynamics. Spatial anisotropic fluctuations with different geometries have been evolved through Boltzmann equation. It is observed that the trace of such fluctuation survives the ev

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23

Sukumar, P., and R. K. Gnanamurthy. "Segmentation and abnormality detection of cervical cancer cells using fast elm with particle swarm optimization." Genetika 47, no. 3 (2015): 863–76. http://dx.doi.org/10.2298/gensr1503863s.

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Cervical cancer arises when the anomalous cells on the cervix mature unmanageable obviously in the renovation sector. The most probably used methods to detect abnormal cervical cells are the routine and there is no difference between the abnormal and normal nuclei. So that the abnormal nuclei found are brown in color while normal nuclei are blue in color. The spread or cells are examined and the image denoising is performed based on the Iterative Decision Based Algorithm. Image Segmentation is the method of paneling a digital image into compound sections. The major utilize of segmentation is t

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24

Chaudhury, M. L., та S. K. Agrawal. "α spectra of deformed even–even nuclei and equivalence of optical model potentials". Canadian Journal of Physics 69, № 6 (1991): 692–98. http://dx.doi.org/10.1139/p91-116.

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The reduced transition probabilities of the α spectra of some deformed heavy even–even nuclei are calculated, taking the barrier to be the anisotropic electrostatic potential superposed by the deformed nonlocal α-nucleus potential. The latter is described by a deformation parameter, εl, as in our previous treatments and, for its static part, different optical model potentials are now used. Results show that the calculated values of the reduced transition probabilities are in good agreement with the observed values, taking the best-fit values of εl. It is also found, as in the case of spherical

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25

Bryce, David L., and Jochen Autschbach. "Relativistic hybrid density functional calculations of indirect nuclear spin–spin coupling tensors — Comparison with experiment for diatomic alkali metal halides,." Canadian Journal of Chemistry 87, no. 7 (2009): 927–41. http://dx.doi.org/10.1139/v09-040.

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The accurate calculation of the isotropic (Jiso) and anisotropic (ΔJ) parts of indirect nuclear spin–spin coupling tensors is a stringent test for quantum chemistry, particularly for couplings involving heavy isotopes where relativistic effects and relativity – electron correlation cross terms are expected to play an important role. Experimental measurements on diatomic molecules in the gas phase offer ideal data for testing the success of computational approaches, since the data are essentially free from intermolecular effects, and precise coupling anisotropies may be reliably extracted in fa

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Mereacre, Valeriu, Frederik Klöwer, Yanhua Lan, et al. "Spin relaxation in antiferromagnetic Fe–Fe dimers slowed down by anisotropic DyIII ions." Beilstein Journal of Nanotechnology 4 (November 27, 2013): 807–14. http://dx.doi.org/10.3762/bjnano.4.92.

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By using Mössbauer spectroscopy in combination with susceptibility measurements it was possible to identify the supertransferred hyperfine field through the oxygen bridges between DyIII and FeIII in a {Fe4Dy2} coordination cluster. The presence of the dysprosium ions provides enough magnetic anisotropy to “block” the hyperfine field that is experienced by the iron nuclei. This has resulted in magnetic spectra with internal hyperfine fields of the iron nuclei of about 23 T. The set of data permitted us to conclude that the direction of the anisotropy in lanthanide nanosize molecular clusters is

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L’vov, Pavel E., and Renat T. Sibatov. "Phase-field model of grain boundary diffusion in nanocrystalline solids: Anisotropic fluctuations, anomalous diffusion, and precipitation." Journal of Applied Physics 132, no. 12 (2022): 124304. http://dx.doi.org/10.1063/5.0101489.

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The anisotropic phase-filed model of grain boundary diffusion and precipitation of solute in nanocrystalline solids has been developed. In this model, the Cahn–Hilliard equation is generalized for the anisotropic phase-field diffusion of solute and anisotropic compositional fluctuations. It is found that dynamics of solute concentration profile demonstrates the anomalous diffusion behavior with scaling parameters depending on the mobility ratio and microstructure of a solid solution. It is noteworthy that the increase in source concentration can slow down the concentration front propagation du

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28

Zheng, Gong, Yang Chen, Henggao Xiang, et al. "Coupled nucleation of dual-phase lamellar structure." Innovation Materials 1, no. 3 (2023): 100043. http://dx.doi.org/10.59717/j.xinn-mater.2023.100043.

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<p>Although lamellar structures widely exist in materials, the existing nucleation knowledge has failed to describe the nucleation process of lamellae. This is because it involves the simultaneous formation of two different phases whose early-stage nuclei are always anisotropic and ordered. We report here a coupled nucleation of lamellae in a eutectoid TiAl system, demonstrating the coupled formation of a pair of anisotropic and ordered ��<sub>2</sub> + �� lamellae from the matrix, and each pair nucleates independently and heterogeneously. The coupled pair has been identified

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Ambrosius, Frank, Elke Klaus, Torsten Schaller, and Angelika Sebald. "CP/MAS NMR of Heavy Spin-1/2 Nuclei at B0 = 2.35T." Zeitschrift für Naturforschung A 50, no. 4-5 (1995): 423–28. http://dx.doi.org/10.1515/zna-1995-4-515.

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Perspectives of CP/MAS NMR at low external magnetic field (B0=2.35T) are discussed. Applications are illustrated for the case of heavy spin-1/2 nuclei such as 195Pt and 199Hg: 195Pt and 199Hg CP/MAS spectra of a variety of organometallic compounds are reported. Aspects of shielding anisotropics, of 195Pt-35/37Cl interactions and of 31P-M (M=Cd, Hg, Pt) coupling in transition metal phosphine complexes will be briefly addressed

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Leoncini, A., L. A. Afanasieva, P. Belli, et al. "Study of Dark Matter with directionality approach using ZnWO₄ crystal scintillators." EPJ Web of Conferences 319 (2025): 10003. https://doi.org/10.1051/epjconf/202531910003.

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Low-background anisotropic scintillators represents an innovative approach to study the presence, in the galactic halo, of those Dark Matter (DM) candidate particles able to induce just nuclear recoils, by exploiting the directionality approach. ZnWO4 crystal scintillators are particularly well-suited for such investigations, since the light output and scintillation pulse shape vary depending on the angle of incidence of heavy particles (e.g., α particles and nuclear recoils) relative to the crystal axes. Due to this anisotropic behavior, a signal induced by those DM candidates can be investig

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HE ZHI-YONG, LI ZU-YU, JIN GEN-MING, et al. "AZIMUTHALLY ANISOTROPIC EMISSION OF UNSTABLE LIGHT NUCLEI IN NUCLEUS-NUCLEUS COLLISIONS." Acta Physica Sinica 45, no. 9 (1996): 1438. http://dx.doi.org/10.7498/aps.45.1438.

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Coppi, P., R. D. Blandford, and M. J. Rees. "Anisotropic induced Compton scattering - Constraints on models of active galactic nuclei." Monthly Notices of the Royal Astronomical Society 262, no. 3 (1993): 603–18. http://dx.doi.org/10.1093/mnras/262.3.603.

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Furó, István, and Bertil Halle. "Multiple quantum NMR spectroscopy onI> 1 nuclei in anisotropic systems." Molecular Physics 76, no. 5 (1992): 1169–97. http://dx.doi.org/10.1080/00268979200101961.

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Andersen and Gundersen. "Pronounced loss of cell nuclei and anisotropic deformation of thick sections." Journal of Microscopy 196, no. 1 (1999): 69–73. http://dx.doi.org/10.1046/j.1365-2818.1999.00555.x.

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Tremblay, Dominique, and Andrew E. Pelling. "Complex Substrate Strain Fields Reveal Anisotropic Deformation of C2C12 Cell Nuclei." Biophysical Journal 102, no. 3 (2012): 707a. http://dx.doi.org/10.1016/j.bpj.2011.11.3838.

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Elliott, Stuart J., and Philip W. Kuchel. "What Are the Relative Intensities of the Components of NMR Spectral Multiplets from Quadrupolar Nuclei in Uniformly Anisotropic Media?" Concepts in Magnetic Resonance Part A 2021 (February 18, 2021): 1–25. http://dx.doi.org/10.1155/2021/8890478.

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Stretched hydrogels make uniformly anisotropic environments for quadrupolar nuclei such as 2H, 23Na, and 133Cs. Such surroundings cause the partial alignment of nuclear spin bearing ions and molecules that is sufficiently pronounced to alter the nuclear magnetic resonance spectra of the guest species. In most cases, resonance splittings are directly related to the spin quantum number I. The relative intensities of the components of the resonance multiplets can be inferred from basic quantum mechanics.

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Abrosimov, V. I., and O. I. Davydovska. "Nature of Isoscalar Dipole Resonances in Heavy Nuclei." Ukrainian Journal of Physics 63, no. 12 (2018): 1043. http://dx.doi.org/10.15407/ujpe63.12.1043.

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The isoscalar dipole nuclear response reveals low- and high-energy resonances. The nature of isoscalar dipole resonances in heavy spherical nuclei is studied, by using a translation-invariant kinetic model of small oscillations of finite Fermi systems. Calculations of the velocity field at the centroid energy show a pure vortex character of the low-energy isoscalar dipole resonance in spherical nuclei and confirm the anisotropic compression character of the high-energy one. The evolution of the velocity field as a function of the excitation energy of the nucleus within the resonance width is s

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Stuchlík, Z., and J. Vrba. "Supermassive black holes surrounded by dark matter modeled as anisotropic fluid: epicyclic oscillations and their fitting to observed QPOs." Journal of Cosmology and Astroparticle Physics 2021, no. 11 (2021): 059. http://dx.doi.org/10.1088/1475-7516/2021/11/059.

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Abstract Recently introduced exact solution of the Einstein gravity coupled minimally to an anisotropic fluid representing dark matter can well represent supermassive black holes in galactic nuclei with realistic distribution of dark matter around the black hole, given by the Hernquist-like density distribution. For these fluid-hairy black hole spacetimes, properties of the gravitational radiation, quasinormal ringing, and optical phenomena were studied, giving interesting results. Here, using the range of physical parameters of these spacetimes allowing for their relevance in astrophysics, we

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Peckham, Heather E., and Wilma K. Olson. "Nucleic-acid structural deformability deduced from anisotropic displacement parameters." Biopolymers 95, no. 4 (2010): 254–69. http://dx.doi.org/10.1002/bip.21570.

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Weller, Andreas, Sven Nordsiek, and Wolfgang Debschütz. "Estimating permeability of sandstone samples by nuclear magnetic resonance and spectral-induced polarization." GEOPHYSICS 75, no. 6 (2010): E215—E226. http://dx.doi.org/10.1190/1.3507304.

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Two techniques to estimate permeability are compared in this paper: nuclear magnetic resonance (NMR) and spectral-induced polarization (SIP). Both methods are based on relaxation processes. NMR records the relaxation of hydrogen nuclei after excitation in an external magnetic field. The phenomenon of induced polarization can be characterized by a relaxation of ions after excitation by an electric field. Hydrogen nuclei are concentrated in the pore water, the current flow is restricted to the pore space for most reservoir rocks, and permeability is related to the pore space geometry. Based on t

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Lesot, Philippe, Philippe Berdagué, and Patrick Giraudeau. "Detection of quadrupolar nuclei by ultrafast 2D NMR: exploring the case of deuterated analytes aligned in chiral oriented solvents." Chemical Communications 52, no. 10 (2016): 2122–25. http://dx.doi.org/10.1039/c5cc09409g.

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Nakano, T., T. Fukushige, and J. Makino. "11.16. On the origin of density cusp in galactic nuclei by central black hole." Symposium - International Astronomical Union 184 (1998): 487–88. http://dx.doi.org/10.1017/s0074180900085703.

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We investigated the dynamical reaction of the central region of galaxies to a falling massive black hole by N-body simulations. As the initial galaxy model, we used an isothermal King model and placed a massive black hole at around the half-mass radius of the galaxy. We found that the central core of the galaxy is destroyed by the heating due to the black hole and a very weak density cusp (ρ ∝ r−α, with α ∼ 0.5) is formed around the center. This result is consistent with recent observations of large elliptical galaxies by Hubble Space Telescope (Lauer et al. 1995; Byun et al. 1996; Gebhardt et

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Liu, Yuan, and Shuang Nan Zhang. "DUSTY TORUS FORMATION BY ANISOTROPIC RADIATIVE PRESSURE FEEDBACK OF ACTIVE GALACTIC NUCLEI." Astrophysical Journal 728, no. 2 (2011): L44. http://dx.doi.org/10.1088/2041-8205/728/2/l44.

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Perederiy, V. G., B. G. Gasanov, and A. A. Aganov. "Structurization and Properties of Magnetoplastics Made of Mechanically Activated Amorphous-Crystalline Powder Alloys Based on the Nd-Fe-B System." Solid State Phenomena 284 (October 2018): 455–59. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.455.

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The influence of the method of melt spinning on the basis of the Fe-Nd-B system on the amorphous-crystal structure of ribbons and flakes is shown. It is established that the magnetic properties of magnetoplasts depend on the powders particle size, the parameters of mechanic activation during flake milling, the kinetics of formation and growth of Fe2Nd14B phase nuclei at all stages of their preparation and processing, etc. Isotropic and anisotropic magnetoplasts and sintered magnets with magnetic properties: Br = 0.5-1.25 T, HcB = 180-700 kA/m; (BH)max = 50-280 kJ/m3.

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S. Padula, Sandra. "Flow and correlation phenomena measurements in pp, pPb and PbPb collisions at CMS." EPJ Web of Conferences 172 (2018): 05005. http://dx.doi.org/10.1051/epjconf/201817205005.

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The quark-gluon plasma created in high energy collisions of large nuclei exhibits strong anisotropic collective behavior as a nearly perfect fluid, flowing with little frictional resistance or viscosity. It has been investigated extensively over the past years employing two or more particle correlations. An overview of collective flow and particle correlation measurements at CMS as a function of transverse momentum, pseudorapidity, event multiplicity, for both charged hadrons or identified particles will be presented. These results are compared among pp, pPb and PbPb systems and several aspect

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Ferland, Gary J., Chen Hu, Jian-Min Wang, et al. "IMPLICATIONS OF INFALLING Fe II-EMITTING CLOUDS IN ACTIVE GALACTIC NUCLEI: ANISOTROPIC PROPERTIES." Astrophysical Journal 707, no. 1 (2009): L82—L86. http://dx.doi.org/10.1088/0004-637x/707/1/l82.

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Kirkpatrick, C. C., B. R. McNamara, and K. W. Cavagnolo. "ANISOTROPIC METAL-ENRICHED OUTFLOWS DRIVEN BY ACTIVE GALACTIC NUCLEI IN CLUSTERS OF GALAXIES." Astrophysical Journal 731, no. 2 (2011): L23. http://dx.doi.org/10.1088/2041-8205/731/2/l23.

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Gerstmann, Uwe, A. P. Seitsonen, Francesco Mauri, and Hans Jürgen von Bardeleben. "Si_CC_SiAntisite Pairs as Dominant Irradiation Induced Defects in p-Type 4H-SiC." Materials Science Forum 615-617 (March 2009): 357–60. http://dx.doi.org/10.4028/www.scientific.net/msf.615-617.357.

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In this work we elucidate the microscopic origin of the dominant radiation induced I-II spectra in p-type doped 4H-SiC. By calculating the electronic g-tensor from first principles in the framework of density functional theory, basal antisite pairs SiCCSi + are shown to give rise to the characteristic anisotropic g-tensors found in the electron paramagnetic resonance (EPR) measurements. Additional central hyperfine (hf) splittings of about 100 MHz due to the SiC antisite nuclei are predicted theoretically and also resolved experimentally. We have, thus, identified antisite pairs as a dominant

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Goyal, Supriya. "How Much Asymmetry of Colliding Pair Affects Nuclear Dynamics at Balance Point?" Physics Research International 2014 (August 20, 2014): 1–10. http://dx.doi.org/10.1155/2014/619360.

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Using the quantum molecular dynamics model, we study the nuclear dynamics at the balance energy of mass asymmetric colliding nuclei by keeping the total mass of the system fixed and by varying the mass asymmetry (η = (AT-AP)/(AT+AP), where AT and AP are the masses of the target and projectile, resp.) of the reaction. In particular, we study the various quantities like average and maximum density and temperature, collision rate, participant-spectator matter, anisotropic ratio, relative momentum, and their mass asymmetry and mass dependence. Our results indicate sizeable effect of mass asymmetry

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Augustine, Cyril. "Two-Pulse Phase Modulation Based Decoupling Schemes for Removing Heteronuclear Spin Interactions in the NMR Spectroscopy of Isotropic Systems: An Analysis Using Experiments and Numerical Simulations." International Journal of Spectroscopy 2014 (May 15, 2014): 1–8. http://dx.doi.org/10.1155/2014/641473.

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Heteronuclear spin interactions in solids and anisotropic liquids can be removed by phase modulated decoupling sequences with frequency sweep, such as SWf-TPPM and its variants. The performance of these sequences in isotropic spin systems with regard to the experimental parameters, phase angle, and decoupler offset is presented here. A comparison is made with other commonly used heteronuclear decoupling schemes in liquids, namely, WALTZ-16, GARP, and MLEV. Also, the trajectories of nuclear magnetization vector of abundant nuclei in a simple spin system during TPPM and SWf-TPPM decoupling seque

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