Browsing by Keywords "Calculation"
Now showing items 1-18 of 18
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Charged bosons in a quasi-one-dimensional system
(American Physical Society, 2000)The ground-state properties of a system of charged bosons in a quasi-one-dimensional model with a neutralizing background are investigated within the hypernetted-chain approximation. Strong correlation effects drive the ... -
A comparative study of O2 adsorbed carbon nanotubes
(2003)First-principles, density functional calculations show that O2 adsorbed single-wall carbon nanotubes (SWNT) show dramatic differences depending on the type of the tube. Upon O2 physisorption, the zig-zag SWNT remains ... -
Electronic excited states of the CP29 antenna complex of green plants: a model based on exciton calculations
(Springer / Kluwer Academic Publishers, 2000)We have suggested a model for the electronic excited states of the minor plant antenna, CP29, by incorporating a considerable part of the current information offered by structure determination, site-directed mutagenesis, ... -
Electronic structure of Te-and As-covered Si(211)
(American Physical Society, 2003)Electronic and atomic structures of the clean and As- and Te-covered Si(211) surface are studied using pseudopotential density-functional method. The clean surface is found to have (2 x 1) and rebonded (1 x 1) reconstructions ... -
Experimental results for 2D magnetic resonance electrical impedance tomography (MR-EIT) using magnetic flux density in one direction
(Institute of Physics Publishing, 2003)Magnetic resonance electrical impedance tomography (MR-EIT) is an emerging imaging technique that reconstructs conductivity images using magnetic flux density measurements acquired employing MRI together with conventional ... -
Formation of quantum structures on a single nanotube by modulating hydrogen adsorption
(American Physical Society, 2003)Using first-principles density functional calculations we showed that quantum structures can be generated on a single carbon nanotube by modulating the adsorption of hydrogen atoms. The band gap of the hydrogen-free zone ... -
Initial stages of Pt growth on Ge (001) studied by scanning tunneling microscopy and density functional theory
(American Physical Society, 2004)We have studied the initial stages of submonolayer Pt growth on the Ge(001). We have observed several stable and meta-stable adsorption configurations of Pt atoms at various temperatures. Calculations indicate relatively ... -
mrsFAST-Ultra: a compact, SNP-aware mapper for high performance sequencing applications
(Oxford University Press, 2014)High throughput sequencing (HTS) platforms generate unprecedented amounts of data that introduce challenges for processing and downstream analysis. While tools that report the 'best' mapping location of each read provide ... -
Point normal metal-superconductor (NS) contact in nonballistic regime
(World Scientific Publishing, 2003)We analyze the point NS contact conductivity taking into account the depression of superconductivity at high-injection current density and Andreev reflection at the adaptive NS boundary. The dependence of the excess current ... -
A portable microfluidic system for rapid measurement of the erythrocyte sedimentation rate
(Royal Society of Chemistry, 2016)The erythrocyte sedimentation rate (ESR) is a frequently used 30 min or 60 min clinical test for screening of several inflammatory conditions, infections, trauma, and malignant diseases, as well as non-inflammatory conditions ... -
Reduced density matrix approach to phononic dissipation in friction
(2000)Understanding mechanisms for energy dissipation from nanoparticles in contact with large samples is a central problem in describing friction microscopically. Calculation of the reduced density matrix appears to be the most ... -
Role of the environmental spectrum in the decoherence and dephasing of multilevel quantum systems
(The American Physical Society, 2005)We examine the effect of multilevels on decoherence and dephasing properties of a quantum system consisting of a nonideal two level subspace, identified as the qubit, and a finite set of higher energy levels above this ... -
Spin-dependent analysis of two-dimensional electron liquids
(The American Physical Society, 2002)Two-dimensional electron liquid (2D EL) at full Fermi degeneracy is revisited, giving special attention to the spin-polarization effects. First, we extend the recently proposed classical-map hypernetted-chain (CHNC) technique ... -
Structure of aluminum atomic chains
(American Physical Society, 2001)First-principles density-functional calculations reveal that aluminum can form planar chains in zigzag and ladder structures. The most stable one has equilateral triangular geometry with four nearest neighbors; the other ... -
A switching synchronization scheme for a class of chaotic systems
(Elsevier, 2002)In this Letter, we propose an observer-based synchronization scheme for a class of chaotic systems. This class of systems are given by piecewise-linear dynamics. By using some properties of such systems, we give a procedure ... -
Te covered Si(001): a variable surface reconstruction
(American Physical Society, 2001)At a given temperature, clean and adatom covered silicon surfaces usually exhibit well-defined reconstruction patterns. Our finite temperature ab initio molecular dynamics calculations show that the tellurium covered Si(001) ... -
Theoretical study of crossed and parallel carbon nanotube junctions and three-dimensional grid structures
(American Physical Society, 2004)This work presents a first-principles study of parallel and crossed junctions of single-wall carbon nanotubes (SWNT). The crossed junctions are modeled by two-dimensional grids of zigzag SWNTs. The atomic and electronic ... -
Theoretical study of Ga-based nanowires and the interaction of Ga with single-wall carbon nanotubes
(American Physical Society, 2004)Gallium displays physical properties which can make it a potential element to produce metallic nanowires and high-conducting interconnects in nanoelectronics. Using first-principles pseudopotential plane method we showed ...
