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Showing 25 to 36 of 666 entries
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Quantum ratchets in dissipative chaotic systems.

Physical review letters

Carlo GG, Benenti G, Casati G, Shepelyansky DL.
PMID: 15904228
Phys Rev Lett. 2005 Apr 29;94(16):164101. doi: 10.1103/PhysRevLett.94.164101. Epub 2005 Apr 26.

Using the method of quantum trajectories, we study a quantum chaotic dissipative ratchet appearing for particles in a pulsed asymmetric potential in the presence of a dissipative environment. The system is characterized by directed transport emerging from a quantum...

Influence and role of metal ions in enzymatic catalysis with e.c. 1.2.3.2. xanthine oxidase Application to trace analysis.

Talanta

Ghe AM, Stefanelli C, Carati D.
PMID: 18963580
Talanta. 1984 Apr;31(4):241-7. doi: 10.1016/0039-9140(84)80270-2.

The effect of metal ions on the reductive half-reaction of xanthine oxidase (XOD) in the catalytic conversion of xanthine into uric acid has been studied spectrophotometrically in Tris-HCl buffer at pH 7.4, 37 +/- 0.1 degrees and ionic strength...

Modeling for temperature compensation and temperature characterizations of BAW resonators at GHz frequencies.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

Ivira B, Benech P, Fillit R, Ndagijimana F, Ancey P, Parat G.
PMID: 18334348
IEEE Trans Ultrason Ferroelectr Freq Control. 2008 Feb;55(2):421-30. doi: 10.1109/TUFFC.2008.660.

This paper deals with the temperature dependence of electrical and physical features of various kinds of solidly mounted resonators (SMR). The presented bulk acoustic wave (BAW) devices are designed for the 2 GHz application. The temperature coefficient of frequency...

Directed deterministic classical transport: symmetry breaking and beyond.

Physical review. E, Statistical, nonlinear, and soft matter physics

Cavallasca L, Artuso R, Casati G.
PMID: 17677346
Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Jun;75(6):066213. doi: 10.1103/PhysRevE.75.066213. Epub 2007 Jun 22.

We consider transport properties of a double delta -kicked system, in a regime where all the symmetries (spatial and temporal) that could prevent directed transport are removed. We analytically investigate the (nontrivial) behavior of the classical current and diffusion...

Hypochlorous acid as a potential wound care agent: part I. Stabilized hypochlorous acid: a component of the inorganic armamentarium of innate immunity.

Journal of burns and wounds

Wang L, Bassiri M, Najafi R, Najafi K, Yang J, Khosrovi B, Hwong W, Barati E, Belisle B, Celeri C, Robson MC.
PMID: 17492050
J Burns Wounds. 2007 Apr 11;6:e5.

OBJECTIVE: Hypochlorous acid (HOCl), a major inorganic bactericidal compound of innate immunity, is effective against a broad range of microorganisms. Owing to its chemical nature, HOCl has never been used as a pharmaceutical drug for treating infection. In this...

Ratchet effect and the transporting islands in the chaotic sea.

Physical review letters

Wang L, Benenti G, Casati G, Li B.
PMID: 18233451
Phys Rev Lett. 2007 Dec 14;99(24):244101. doi: 10.1103/PhysRevLett.99.244101. Epub 2007 Dec 14.

We study directed transport in a classical deterministic dissipative system. We consider the generic case of mixed phase space and show that large ratchet currents can be generated thanks to the presence, in the Hamiltonian limit, of transporting stability...

Asymmetric wave propagation in nonlinear systems.

Physical review letters

Lepri S, Casati G.
PMID: 21599368
Phys Rev Lett. 2011 Apr 22;106(16):164101. doi: 10.1103/PhysRevLett.106.164101. Epub 2011 Apr 18.

A mechanism for asymmetric (nonreciprocal) wave transmission is presented. As a reference system, we consider a layered nonlinear, nonmirror-symmetric model described by the one-dimensional discrete nonlinear Schrödinger equation with spatially varying coefficients embedded in an otherwise linear lattice. We...

Canine visceral leishmaniasis in boyer ahmad district, kohgiluyeh & boyer ahmad province, southwest of iran.

Iranian journal of parasitology

Moshfe A, Mohebali M, Afshoun E, Mousavizadeh A, Zarei Z, Abidi H, Akhoundi B, Barati V, Joukar S.
PMID: 23323094
Iran J Parasitol. 2012;7(4):75-81.

BACKGROUND: Mediterranean type of visceral leishmaniasis (VL) is present in different parts of Iran. Several studies have identified dogs as the main reservoirs of the VL caused by Leishmania infantum in Iran and other Mediterranean regions. This study aimed...

Variable electron beam diameter achieved by a titanium oxide/carbon nanotube hetero-structure suitable for nanolithography.

Nanotechnology

Abdi Y, Barati F.
PMID: 23306765
Nanotechnology. 2013 Feb 08;24(5):055303. doi: 10.1088/0957-4484/24/5/055303. Epub 2013 Jan 11.

We report the fabrication of a titanium oxide/carbon nanotube based field emission device suitable for nanolithography and fabrication of transistors. The growth of carbon nanotubes (CNTs) is performed on silicon substrates using a plasma-enhanced chemical vapor deposition method. The...

Statistical thermodynamics of a two-dimensional relativistic gas.

Physical review. E, Statistical, nonlinear, and soft matter physics

Montakhab A, Ghodrat M, Barati M.
PMID: 19391919
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Mar;79(3):031124. doi: 10.1103/PhysRevE.79.031124. Epub 2009 Mar 30.

In this paper we study a fully relativistic model of a two-dimensional hard-disk gas. This model avoids the general problems associated with relativistic particle collisions and is therefore an ideal system to study relativistic effects in statistical thermodynamics. We...

Phase-space characterization of complexity in quantum many-body dynamics.

Physical review. E, Statistical, nonlinear, and soft matter physics

Balachandran V, Benenti G, Casati G, Gong J.
PMID: 21230374
Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Oct;82(4):046216. doi: 10.1103/PhysRevE.82.046216. Epub 2010 Oct 20.

We propose a phase-space Wigner harmonics entropy measure for many-body quantum dynamical complexity. This measure, which reduces to the well-known measure of complexity in classical systems and which is valid for both pure and mixed states in single-particle and...

Conservation laws and thermodynamic efficiencies.

Physical review letters

Benenti G, Casati G, Wang J.
PMID: 25166362
Phys Rev Lett. 2013 Feb 15;110(7):070604. doi: 10.1103/PhysRevLett.110.070604. Epub 2013 Feb 11.

We show that generic systems with a single relevant conserved quantity reach the Carnot efficiency in the thermodynamic limit. Such a general result is illustrated by means of a diatomic chain of hard-point elastically colliding particles where the total...

Showing 25 to 36 of 666 entries