Shiraz University

output

19982026

most citedHorizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A

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753 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2021Show all

38 papers · 1 filter

physics.flu-dyn2021★ 50 cited

Influence of Sequential Changes in the Crude Oil-Water Interfacial Tension on Spontaneous Imbibition in Oil-Wet Sandstone

Anupong Sukee, Tanakon Nunta, Maje Alhaji Haruna +2

Crude oil-water interfacial tension in petroleum reservoir is reduced or increased due to surfactant injection or surfactant retention, respectively. Changes in the interfacial ten…

gr-qc2021★ 19 cited

Stability and phase transition of rotating Kaluza-Klein black holes

Seyed Hossein Hendi, Somayeh Hajkhalili, Mubasher Jamil +1

In this paper, we investigate thermodynamics and phase transitions of a 4-dimensional rotating Kaluza-Klein black hole solution in the presence of Maxwell electrodynamics. Calculat…

hep-th2021★ 11 cited

Self-energy problem, vacuum polarization, and dual symmetry in Born-Infeld-type $U (1)$ gauge theories

Ali Dehghani, Mohammad Reza Setare, Soodeh Zarepour

We extensively explore three different aspects of Born-Infeld (BI) type nonlinear $U (1)$ gauge-invariant modifications of Maxwell's classical electrodynamics (also known as BI-type…

cs.SE2021

Reputation Gaming in Stack Overflow

Iren Mazloomzadeh, Gias Uddin, Foutse Khomh +1

Stack Overflow incentive system awards users with reputation scores to ensure quality. The decentralized nature of the forum may make the incentive system prone to manipulation. Th…

gr-qc2021★ 4 cited

Neutron Stars in Mimetic Gravity

Hajar Noshad, Seyed Hossein Hendi, Behzad Eslam Panah

In this paper, a modified version of the hydrostatic equilibrium equation based on the mimetic gravity in the presence of perfect fluid is revisited. By using the different known e…

physics.ao-ph2021

Graph-based Local Climate Classification in Iran

Neda Akrami, Koorush Ziarati, Soumyabrata Dev

In this paper, we introduce a novel graph-based method to classify the regions with similar climate in a local area. We refer our proposed method as Graph Partition Based Method (G…

physics.gen-ph2021★ 9 cited

New black hole solutions in three-dimensional $f (R)$ gravity

G. G. L. Nashed, A. Sheykhi

We construct two new classes of analytical solutions in three-dimensional spacetime and in the framework of $f (R)$ gravity. The first class represents a non-rotating black hole (BH…

gr-qc2021★ 40 cited

Observational constraints of the modified cosmology through Barrow entropy

Mahnaz Asghari, Ahmad Sheykhi

Taking into account a fractal structure for the black hole horizon, Barrow argued that the area law of entropy is modified due to quantum-gravitational effects (Barrow in Phys Lett…

eess.AS2021★ 30 cited

Real-Time Multi-Level Neonatal Heart and Lung Sound Quality Assessment for Telehealth Applications

Ethan Grooby, Chiranjibi Sitaula, Davood Fattahi +8

Digital stethoscopes in combination with telehealth allow chest sounds to be easily collected and transmitted for remote monitoring and diagnosis. Chest sounds contain important in…

eess.SP2021★ 1 cited

Stochastic Maximum-Likelihood DOA Estimation and Source Enumeration in the Presence of Nonuniform Noise

Mahmood Karimi

In this paper, the problem of determining the number of signal sources impinging on an array of sensors and estimating their directions-of-arrival (DOAs) in the presence of spatial…

physics.ao-ph2021

Improving Precipitation Estimation Using Multilinear Model Selection Algorithms

Ruhollah Nasiri, Mohamad Sarajzadeh

High quality Quantitative Precipitation Estimation at high spatiotemporal resolution is crucial to many hydrologic/hydro-meteorological designs. Optimal Quantitative Precipitation…

math.CO2021★ 2 cited

Distinguishing threshold for some graph operations

Mohammad Hadi Shekarriz, Seyed Alireza Talebpour Shirazi Fard, Bahman Ahmadi +2

A vertex coloring of a graph $G$ is distinguishing if non-identity automorphisms do not preserve it. The distinguishing number, $D (G)$ , is the minimum number of colors required for…

eess.SP2021★ 19 cited

Temporally Nonstationary Component Analysis; Application to Noninvasive Fetal Electrocardiogram Extraction

Fahimeh Jamshidian-Tehrani, Reza Sameni, Christian Jutten

Objective: Mixtures of temporally nonstationary signals are very common in biomedical applications. The nonstationarity of the source signals can be used as a discriminative proper…

math.AC2021★ 3 cited

Gorenstein and Cohen-Macaulay Matching Complexes

Ashkan Nikseresht

Let $H$ be a simple undirected graph. The family of all matchings of $H$ forms a simplicial complex called the matching complex of $H$ . Here , we give a classification of all graph…

physics.soc-ph2021

Dynamics of Social Balance on Networks: The Emergence of Multipolar Societies

Pouya Manshour, Afshin Montakhab

Within the context of social balance theory, much attention has been paid to the attainment and stability of unipolar or bipolar societies. However, multipolar societies are common…

hep-th2021★ 9 cited

Thermodynamic geometry and phase transition of spinning AdS black holes

Amin Dehyadegari, Ahmad Sheykhi

Employing the thermodynamic geometry approach, we explore phase transition of four dimensional spinning black holes in an anti-de Sitter (AdS) spaces and found the following novel…

math.CO2021★ 5 cited

Distinguishing threshold of graphs

Mohammad Hadi Shekarriz, Bahman Ahmadi, Seyed Alireza Talebpour Shirazi Fard +1

A vertex coloring of a graph $G$ is called distinguishing if no non-identity automorphisms of $G$ can preserve it. The distinguishing number of $G$ , denoted by $D (G)$ , is the minim…

astro-ph.CO2021★ 1 cited

Quasi-matter Bounce Cosmology in Light of Planck

Mohammad Arab, Mohsen Khorasani

We study quasi-matter bounce cosmology in light of Planck cosmic microwave background (CMB) angular anisotropy measurements along with the BICEP2/Keck Array data. We propose a new…

hep-th2021

An approach to the quasi-equilibrium state of a self-gravitating system

Azizollah Azizi, Amir A. Khodahami

We propose an approach to find out when a self-gravitating system is in a quasi-equilibrium state. This approach is based on a comparison between two quantities identifying behavio…

physics.optics2021★ 7 cited

Optical amplification of surface plasmon polaritons in a graphene single layer integrated with a random grating

Abbas Ghasempour Ardakani, Peymaneh Rafieipour

In this paper, we design and simulate a terahertz (THz) controllable active plasmonic waveguide structure based on a single graphene layer that is placed on a random silicon gratin…

cond-mat.stat-mech2021★ 2 cited

Fractional Stochastic Loewner Evolution and Scaling Curves

M. Ghasemi Nezhadhaghighi

The Stochastic Loewner equation, introduced by Schramm, gives us a powerful way to study and classify critical random curves and interfaces in two-dimensional statistical mechanics…

hep-ph2021★ 3 cited

Parameter dependence and analysis of the 2HDM neutral Higgs boson pair production and decay at future lepton colliders

Majid Hashemi, Neda Nowbakht Ghalati

In this work, we present a study of the neutral Higgs bosons in the two Higgs doublet model (2HDM) in terms of their production processes and decay channels as a function of the mo…

gr-qc2021★ 32 cited

Observational constraints on Tsallis modified gravity