Results 11 to 20 of about 4,532 (91)

Tensor Renormalization Group: Local Magnetizations, Correlation Functions, and Phase Diagrams of Systems with Quenched Randomness [PDF]

open access: yes, 2010
The tensor renormalization-group method, developed by Levin and Nave, brings systematic improvability to the position-space renormalization-group method and yields essentially exact results for phase diagrams and entire thermodynamic functions.
Berker, A. Nihat   +3 more
core   +2 more sources

Differential rotation on the young solar analogue V889 Herculis [PDF]

open access: yes, 2010
V889 Herculis is one of the brightest single early-G type stars, a young Sun, that is rotating fast enough (P_rot =1.337 days) for mapping its surface by Doppler Imaging.
Biazzo, Katia   +5 more
core   +1 more source

Particle Creation If a Cosmic String Snaps [PDF]

open access: yes, 1994
We calculate the Bogolubov coefficients for a metric which describes the snapping of a cosmic string. If we insist on a matching condition for all times {\it and} a particle interpretation, we find no particle creation.Comment: 10 pages, MRC.PH.17 ...
A. H. Bilge   +17 more
core   +3 more sources

Online Fine-Grained Root Cause Classification for Power Quality Disturbances

open access: yesIEEE Access
Power quality disturbances (PQDs) account for an important share of power quality problems that hurt the resilience of electric power systems. Timely identification of the root causes for such disturbances will enable transmission system operators take ...
Umut Guvengir, Dilek Kucuk, Mahmut Keles
doaj   +1 more source

WASP-14 b: Transit Timing analysis of 19 light curves

open access: yes, 2015
Although WASP-14 b is one of the most massive and densest exoplanets on a tight and eccentric orbit, it has never been a target of photometric follow-up monitoring or dedicated observing campaigns.
Berndt, A.   +15 more
core   +1 more source

Phase Diagrams and Crossover in Spatially Anisotropic d=3 Ising, XY Magnetic and Percolation Systems: Exact Renormalization-Group Solutions of Hierarchical Models

open access: yes, 2007
Hierarchical lattices that constitute spatially anisotropic systems are introduced. These lattices provide exact solutions for hierarchical models and, simultaneously, approximate solutions for uniaxially or fully anisotropic d=3 physical models.
A. A. Migdal   +8 more
core   +1 more source

On Cohen-Macaulayness and depth of ideals in invariant rings [PDF]

open access: yes, 2015
We investigate the presence of Cohen-Macaulay ideals in invariant rings and show that an ideal of an invariant ring corresponding to a modular representation of a $p$-group is not Cohen-Macaulay unless the invariant ring itself is.
Kohls, Martin, Sezer, Müfit
core   +2 more sources

Two-Loop Effective Action for Theories with Fermions [PDF]

open access: yes, 1994
On the basis of a new approach proposed in our previous work we develope a formalism for calculating of the effective action for some models containing fermion fields.
Faizullaev, B. A., Musakhanov, M. M.
core   +2 more sources

TÜBİTAK Tarafından Yayınlanan Meraklı Minik Çocuk Dergisinin Değerler Açısından İncelenmesi [PDF]

open access: yesDeğerler Eğitimi Dergisi, 2018
Araştırmanın amacı, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜ- BİTAK) tarafından yayınlanan erken çocukluk dönemine yönelik “Meraklı Minik” çocuk dergisinin, evrensel değerlere ne düzeyde yer verildiğinin belirlenmesi açısından ...
Erhan ALABAY   +3 more
doaj  

BOG KAO BITAK U ISLAMSKOJ FILOZOFIJI

open access: yesZbornik radova 18, 2016
Rethinking the Act of Being has been a central issue for Islamic philosophers. They have considered that the Act of Being is God, that it is another name for God. Supporting the metaphysics of the Act of Being, or the metaphysics of Essence, the Islamic philosophers have identified the Act of Being with reality or on the other hand Essence with reality.
openaire   +1 more source

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