Browsing Department of Physics by Title

Now showing items 1-20 of 164

A click mediated route to a novel fluorescent pyridino-extended calix[4]pyrrole sensor: Synthesis and binding studies

Rifai, Ahmad; AlHaddad, Nancy; Noun, Manale; Abbas, Ismail I.; Tabbal, Malek; Shatila, Rania S.; Cazier-Dennin, Francine; Danjou, Pierre Edouard (Royal Society of Chemistry, 2019)

A novel fluorescent aryl-extended phenoxycalix[4]pyrrole ditopic sensor with enhanced cation recognition properties was efficiently synthesized via click chemistry and characterized through both molecular fluorescence and ...
A cosmological solution to mimetic dark matter

Saadi, Hassan (Springer New York LLC, 2016)

In this paper, a cosmological solution to Mimetic Dark Matter (MDM) for an exponential potential is provided. Then a solution for the $$0-i$$0-i perturbed Einstein differential equation of MDM is obtained based on an ...
A critical analysis of the Big Bang Nucleosynthesis

Makki, Tahani R.; El-Eid, Mounib F.; Mathews, Grant J. (World Scientific Publishing Co. Pte Ltd, 2019)

Standard Big Bang Nucleosynthesis (SBBN) represents one of the basic tools to understand the early evolution of the universe. In this paper, we reanalyze this process to focus on the so-called lithium problem. 7Li is ...
A framework for reconstructing transmission networks in infectious diseases

Najem, Sara A.; Monni, Stefano; Hatoum, Rola; Sweidan, Hawraa; Faour, Ghaleb; Abdallah, Chadi; Ghosn, Nada; Hassan, Hamad; Touma, Jihad R. (Springer Science and Business Media Deutschland GmbH, 2022)

In this paper, we propose a general framework for the reconstruction of the underlying cross-regional transmission network contributing to the spread of an infectious disease. We employ an autoregressive model that allows ...
A game-theoretic approach to assess peer-to-peer rooftop solar PV electricity trading under constrained power supply

Krayem, Alaa; Ahmad, Ali; Najem, Sara A. (Springer Science and Business Media Deutschland GmbH, 2023)

The integration of distributed energy resources and the transition to smart cities are shifting the urban energy sector to a decentralized operating system. Blockchain-based microgrids, where small-scale operators trade ...
Ac Magnetic Susceptibility and EPR Studies of (Co0.5Zn0.5Fe2O4)x/(Cu0.5Tl0.5)-1223 Composites

Isber, Samih; Barakat, Mai M.E.; Al-Sayyed, N.; Noureddine, Salam F.; Awad, Ramadan (Springer New York LLC, 2017)

Cobalt zinc ferrite nanoparticles (Co0.5Zn0. 5Fe2O4)x (∼5–8 nm in size) added to Cu0.5Tl0.5Ba2Ca2Cu3O10−δ superconductor samples, 0.00 ≤x≤ 0.20 wt. %, were prepared using a singlestep solid-state reaction technique. The ...
Adsorption Active Diblock Copolymers as Universal Agents for Unusual Barrier-Free Transitions in Stimuli-Responsive Brushes

Qi, Shuanhu; Klushin, Leonid I.; Skvortsov, Aleksander M.; Schmid, Friederike (American Chemical Society, 2021)

We reconsider a recently proposed design for smart responsive brushes, which is based on a conformational transition in very dilutely embedded block copolymers with a surface active block (Qi et al., Macromolecules 53, ...
Adsorption-active polydisperse brush with tunable molecular mass distribution

Ivanova, Anna S.; Polotsky, Alexey A.; Skvortsov, Aleksander M.; Klushin, Leonid I.; Schmid, Friederike (American Institute of Physics Inc., 2022)

Recently, a novel class of responsive uncharged polymer brushes has been proposed [Klushin et al., J. Chem. Phys. 154(7), 074904 (2021)] where the brush-forming chains have an affinity to the substrate. For sufficiently ...
Ag fractal structures in electroless metal deposition systems with and without magnetic field

Ibrahim, Huria; Farah, Hiba; Eddin, Amal Zein; Isber, Samih; Sultan, Rabih F. (American Institute of Physics Inc., 2017)

Metal electrodeposition systems display tree-like structures with extensive ramification and a fractal character. Electrolysis is not a necessary route for the growth of such dendritic metal deposits. We can grow beautiful ...
An autonomous low-power management system for energy harvesting from a miniaturized spherical piezoelectric transducer

DIab, Daher; Lefebvre, Fabrice; Nassar, Georges; Smagin, Nikolay V.; Isber, Samih; El-Omar, Fawaz; Naja, Adnan (American Institute of Physics Inc., 2019)

A new spherical vibrational energy harvesting device with an additional low power management circuit for optimizing the power transfer from the mechanical vibrations to a storage capacitor is presented. The device is devoted ...
Analysis of the refugees’ drowning events :: the earthquakes’ statistics analogy

Khederlarian, Ashod; Grant, Martin L.; Halkort, Monika; Najem, Sara A. (Springer Science and Business Media Deutschland GmbH, 2021)

In this paper, we explore the analogy between the refugees’ drownings in the sea and the earthquakes’ occurrences and focus on the aspect that characterizes the statistics of their spatial and temporal successions. The ...
Anomalous critical slowdown at a first order phase transition in single polymer chains

Zhang, Shuangshuang; Qi, Shuanhu; Klushin, Leonid I.; Skvortsov, Aleksander M.; Yan, Dadong; Schmid, Friederike (American Institute of Physics Inc., 2017)

Using Brownian dynamics, we study the dynamical behavior of a polymer grafted onto an adhesive surface close to the mechanically induced adsorption-stretching transition. Even though the transition is first order (in the ...
Application of Doehlert experimental design for the removal of radium from aqueous solution by cross-linked phenoxycalix[4]pyrrole-polymer using Ba(II) as a model

AlHaddad, Nancy; Sidaoui, Radwan; Tabbal, Malek; Abbas, Ismail I.; Danjou, Pierre Edouard; Cazier-Dennin, Francine; Baydoun, Rana; El-Samad, Omar; Rifai, Ahmad (Springer, 2020)

Ra-226 is a naturally occurring radionuclide that is derived from uranium-238 series, and it is present at low concentrations in rocks, soil, and groundwater. Many efforts have been exerted for the decontamination of radium ...
Application of Houston's Method to the Calculation of the Direction-Dependent Thermal Conductivity in Finite Crystals at Low Temperatures

Kazan, Michel (American Society of Mechanical Engineers (ASME), 2017)

This paper presents significant advances in the analytical calculation of the low-temperature lattice thermal conductivity in finite crystals. It shows that an accurate prediction of the direction-dependent lattice thermal ...
Arm retraction dynamics and bistability of a three-arm star polymer in a nanopore

Milchev, Andrey I.; Müller, Marcus; Klushin, Leonid I. (American Chemical Society, 2014)

Using molecular dynamics and Monte Carlo simulations as well as analytical considerations, we study the arm-retraction dynamics of a three-arm star polymer in a narrow nanotube as a function of arm length, N, and tube ...
Asymptotically free mimetic gravity

Chamseddine, Ali H.; Mukhanov, Viatcheslav F.; Russ, Tobias B. (Springer New York LLC, 2019)

The idea of “asymptotically free” gravity is implemented using a constrained mimetic scalar field. The effective gravitational constant is assumed to vanish at some limiting curvature. As a result singularities in spatially ...
Black hole remnants

Chamseddine, Ali H.; Mukhanov, Viatcheslav F.; Russ, Tobias B. (Springer Verlag, 2019)

We show that in asymptotically free mimetic gravity with limiting curvature the black hole singularity can be resolved and replaced by a static patch of de Sitter space. As a result of Hawking evaporation of these non-singular ...
Broadband ferromagnetic resonance of ultrathin yttrium iron garnet films by pulsed laser deposition: Effects of deposition parameters

Haidar, Mohammad; El-Khoury, Brian; Isber, Samih (Elsevier B.V., 2023)

In this study, we investigate the growth and characteristics of ultrathin ferrimagnetic yttrium iron garnet (YIG, Y3Fe5O12) films on a Gallium Gadolinium Garnet (GGG) substrate using the pulsed laser deposition technique ...
Broadband vibrational energy harvesting with a spherical piezoelectric transducer devoted to underwater wireless sensor networks

DIab, Daher; Smagin, Nikolay V.; Lefebvre, Fabrice; Nassar, Georges; Isber, Samih; Omar, Fawaz El; Naja, Adnan (S. Hirzel Verlag GmbH, 2019)

A new sensing node container based on a spherical piezoelectric transducer is proposed. This device provides broadband vibrational energy harvesting and sensing facilities intended for underwater wireless sensor networks. ...
Calculation of the lattice thermal conductivity in granular crystals

Kazan, Michel; Volz, Sébastian Gunter (American Institute of Physics Inc., 2014)

This paper provides a general model for the lattice thermal conductivity in granular crystals. The key development presented in this model is that the contribution of surface phonons to the thermal conductivity and the ...

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Browsing Department of Physics by Title

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