Academic literature on the topic 'Nuclei anisotropici'

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Journal articles on the topic "Nuclei anisotropici"

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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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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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Dissertations / Theses on the topic "Nuclei anisotropici"

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DE, LUCA ALESSANDRA. "On some nonlocal issues: unique continuation from the boundary and capillarity problems for anisotropic kernels." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/378950.

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Lo scopo della presente tesi è quello di discutere i risultati ottenuti durante i miei studi di dottorato, principalmente rivolti a problemi non locali. Per prima cosa ci occupiamo di principi di continuazione unica forte ed espansioni asintotiche locali in determinati punti del bordo per soluzioni di due diverse classi di equazioni ellittiche. In particolare, partiamo con lo studio di una classe di equazioni ellittiche frazionarie in un dominio limitato sotto una condizione al contorno di Dirichlet omogenea esterna. Per fare ciò, sfruttiamo la procedura di estensione di Caffarelli-Silvestre,
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Macadangdang, Joan Karla. "Nuclear and Cytoskeletal Prestress Govern the Anisotropic Mechanical Properties of the Nucleus." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23310.

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Physical forces in the cellular microenvironment play an important role in governing cell function. Forces transmitted through the cell cause distinct deformation of the nucleus, and possibly play a role in force-mediated gene expression. The work presented in this thesis drew upon innovative strategies employing simultaneous atomic force and laser-scanning confocal microscopy, as well as parallel optical stretching experiments, to gain unique insights into the response of eukaryotic cell nuclei to external force. Non-destructive approaches confirmed the existence of a clear anisotropy in nucl
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Williams, Dennis Andrew. "A study of anisotropic particle emission from oriented nuclei." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363998.

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James, Christopher James. "AN ANISOTROPIC CONSTITUTIVE MODEL FOR NUCLEAR GRADE GRAPHITE." Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1544027689571583.

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Stourton, E. C. "Anisotropic interactions in solid-state nuclear magnetic resonance spectroscopy." Thesis, University of Cambridge, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243269.

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Dahl, Jon Alan. "Positive anisotropic scattering sources for discrete ordinate methods." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/284105.

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The angular dependence of the differential scattering cross section is typically represented as a truncated Legendre series expansion. If the scattering cross section is highly anisotropic, these expansions may result in negative regions in the -1 ≤ μ0 ≤ +1 interval, thus representing the cross section by negative values. These negative regions may cause negative components in the discrete ordinates scattering source, which are non-physical and which may adversely affect the iterative convergence of the exponential discontinuous spatial discretization scheme. Two methods are presented which pr
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Krouppa, Brandon. "Quarkonium suppression using 3+1d anisotropic hydrodynamics." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1532523360257784.

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Alqahtani, Mubarak Aydh K. "QUASIPARTICLE ANISOTROPIC HYDRODYNAMICS IN ULTRA-RELATIVISTIC HEAVY-ION COLLISIONS." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1512385855986591.

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Alani, Mahdi Ahmed 1954. "Neutral particle Green's function in an infinite medium with anisotropic scattering." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/282874.

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The linear Boltzmann equation for the transport of neutral particles is investigated with the objective of generating benchmark-quality calculations for homogeneous infinite media. In all cases, the problems are stationary, of one energy group, and the scattering is both isotropic and anisotropic. In the transport problems considered, the Green's function is generally the quantity of interest. The solution is obtained through the use of the Fourier transform method. The numerical inversions use standard numerical techniques, such as Gauss-Legendre quadrature, summation of infinite series, and
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Xiao, Chengfeng. "A PROBABILISITIC BASED FAILURE MODEL FOR COMPONENTS FABRICATED FROM ANISOTROPIC GRAPHITE." Cleveland State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=csu1400156312.

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Books on the topic "Nuclei anisotropici"

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Glazov, M. M. Spin Resonance. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198807308.003.0003.

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This chapter is devoted to one of key phenomena in the field of spin physics, namely, resonant absorption of electromagnetic waves under conditions where the Zeeman splitting of spin levels in magnetic field is equal to photon energy. This method is particularly important for identification of nuclear spin effects, because resonance spectra provide fingerprints of different involved spin species and make it possible to distinguish different nuclear isotopes. As discussed in this chapter the nuclear magnetic resonance provides also an access to local magnetic fields acting on nuclear spins. The
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Book chapters on the topic "Nuclei anisotropici"

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Ward, Martin J. "Anisotropic Continuum Emission in Seyferts." In Active Galactic Nuclei. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0963-2_90.

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Acosta-Pulido, J. A., I. Pérez-Fournon, and A. S. Wilson. "Models of Anisotropic Ionizing Radiation in Seyfert Galaxies." In Physics of Active Galactic Nuclei. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-77566-6_80.

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Penston, M. V., E. Pérez, and M. Moles. "Rapid Line Variations in High Luminosity AGN and Anisotropic Emission of the Optical/UV Continuum." In Active Galactic Nuclei. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0963-2_19.

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Baring, Matthew G. "Anisotropic Effects in Thomson Cascade Models of Active Galactic Nuclei." In Multi-Wavelength Continuum Emission of AGN. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-010-9537-2_69.

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Lange, C. A., J. G. Snijders, and E. E. Burnell. "On the Orientation of Small Molecules in Anisotropic Solvents." In Nuclear Magnetic Resonance of Liquid Crystals. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-6517-1_8.

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Wolff, R., C. Vogel, and R. Radeglia. "IGLO Calculations of 29Si NMR Chemical Shift Anisotropies in Silicate Models." In Nuclear Magnetic Shieldings and Molecular Structure. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1652-7_20.

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Butler, Leslie G., David G. Cory, Joel B. Miller, Kerry M. Dooley, and Allen N. Garroway. "Nuclear Magnetic Resonance Imaging of Anisotropic Solid-State Chemical Reactions." In ACS Symposium Series. American Chemical Society, 1993. http://dx.doi.org/10.1021/bk-1993-0517.ch018.

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Tate, Shin–ichi. "Protein Structure and Dynamics Determination by Residual Anisotropic Nuclear Spin Interactions." In Experimental Approaches of NMR Spectroscopy II. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-6830-1_14.

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Brimbal, Daniel, Nermine Chaari, Pierre Barberis, and Florent Bourlier. "Zirconium-Applied Anisotropic Cluster Dynamics for Irradiation-Induced Defect Modeling in Presence of Hydrogen." In Zirconium in the Nuclear Industry: 19th International Symposium. ASTM International, 2021. http://dx.doi.org/10.1520/stp162220190013.

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Zhou, B. X., J. C. Peng, M. Y. Yao, et al. "Study of the Initial Stage and Anisotropic Growth of Oxide Layers Formed on Zircaloy-4." In Zirconium in the Nuclear Industry: 16th International Symposium. ASTM International, 2010. http://dx.doi.org/10.1520/stp49277t.

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Conference papers on the topic "Nuclei anisotropici"

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Tang, X., Y. Yang, and H. Mao. "X-ray Dark-field Imaging of Anisotropic Rod-shaped Magnetic Iron Oxide Particles." In 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD). IEEE, 2024. http://dx.doi.org/10.1109/nss/mic/rtsd57108.2024.10657383.

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Delion, D. S. "Anisotropic α - Decay in Deformed Nuclei". У PROTON-EMITTING NUCLEI: Second International Symposium PROCON 2003. AIP, 2003. http://dx.doi.org/10.1063/1.1615169.

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Delion, D. S. "Anisotropic α - Decay in Deformed Nuclei". У EXOTIC CLUSTERING: 4th Catania Relativistic Ion Studies CRIS 2002. AIP, 2002. http://dx.doi.org/10.1063/1.1523170.

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Baring, Matthew G. "Anisotropic Thomsom upscattering in active galactic nuclei." In The second Compton symposium. AIP, 1994. http://dx.doi.org/10.1063/1.45664.

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Ishii, N. "Anisotropic lattice QCD studies of penta-quarks and tetra-quarks." In PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei. AIP, 2006. http://dx.doi.org/10.1063/1.2220310.

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Yamazaki, Dai, Kiyotomo Ichiki, Taka Kajino, and Grant J. Mathews. "Primordial magnetic field constrained from CMB anisotropies,and its generation and evolution before, during and after the BBN." In International Symposium on Nuclear Astrophysics - Nuclei in the Cosmos - IX. Sissa Medialab, 2010. http://dx.doi.org/10.22323/1.028.0194.

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Hernandez, Hermilo, and Tatjana Jevremovic. "Assessment of the Effects of Anisotropy in TRIGA Based on 3D-AGENT Methodology." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30138.

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The neutronics characterization of The University of Utah TRIGA reactor core focused at evaluating the effects of anisotropic neutron scattering is based on 3D AGENT methodology. The AGENT methodology is based on method of characteristics with exact modeling of geometry and material distribution in the reactor cores. This feature is unique to deterministic codes worldwide and is based on the originally developed R-function solid modeler. The anisotropic correction to neutron transport in 3D hexagonal and square reactors as implemented in AGENT, provides highly accurate solution with no limitat
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Strickland, Michael. "Highly anisotropic dissipative hydrodynamics." In 11TH CONFERENCE ON THE INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS: (CIPANP 2012). AIP, 2013. http://dx.doi.org/10.1063/1.4826864.

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Bouyrie, Mathieu, Cristina Manfredotti, Nadine Peyriéras, and Antoine Cornuéjols. "Denoising 3D Microscopy Images of Cell Nuclei using Shape Priors on an Anisotropic Grid." In International Conference on Pattern Recognition Applications and Methods. SCITEPRESS - Science and and Technology Publications, 2016. http://dx.doi.org/10.5220/0005706002910298.

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TOURNIER, R. F. "TEXTURING FROM LIQUID TO SOLID STATE BY ALIGNING ANISOTROPIC MAGNETIC NUCLEI IN HIGH FIELDS." In Proceedings of the International Workshop on Materials Analysis and Processing in Magnetic Fields. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812701800_0011.

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