Exact solution of Schrodinger equation for Pseudoharmonic potential

Exact solution of Schrodinger equation for the pseudoharmonic potential is obtained for an arbitrary angular momentum. The energy eigenvalues and corresponding eigenfunctions are calculated by Nikiforov-Uvarov method. Wavefunctions are expressed in terms of Jacobi polynomials. The energy eigenvalues are calculated numerically for some values of l and n with n<5 for some diatomic molecules.Comment: 10 page

Afforestation for reduction of NOx concentration in Lanzhou China

Environment International, 34 (5), 688-697The article of record as published may be found at http://dx.doi.org/10.1016/j.envint.2007.12.01

Measurement of the D-D fusion neutron energy spectrum and variation of the peak width with plasma ion temperature

and disposal, in whole or in part by or for the United States govern-ment is permitted. By acceptance of this article, the publisher and/or recipient ac-knowledges the U.S. Government&apos;s right to retain a non-exclusive, royalty-free license in and to any copyright covering this paper. 1 Measurement of the d-d fusion neutron energy spectrum and variation of the peak width with plasma ion temperature W. A. Fisher*, S. H. Chen*, D. Gwinnt, R. R. Parkert We report a set of neutron spectrum measurements made at the Alcator C tokamak under ohmic heating conditions. It has been found that the width of the D-D fusion neutron peak increases with the plasma ion temperature consistent with the theoretical prediction. In particular the neutron spectra resulting from the sum of many plasma discharges with ion temperatures of 780 eV and 1050 eV have been ob-tained. The width for the 780 eV case is 64 +9,-11 keV and that of the 1050 eV case, 81 +10,-14 keV FWHM, corresponding to ion tempera-tures of 740 eV and 1190 eV respectively

Temperature dependence of Vortex Charges in High Temperature Superconductors

Using a model Hamiltonian with d-wave superconductivity and competing antiferromagnetic (AF) interactions, the temperature (T) dependence of the vortex charge in high T_c superconductors is investigated by numerically solving the Bogoliubov-de Gennes equations. The strength of the induced AF order inside the vortex core is T dependent. The vortex charge could be negative when the AF order with sufficient strength is present at low temperatures. At higher temperatures, the AF order may be completely suppressed and the vortex charge becomes positive. A first order like transition in the T dependent vortex charge is seen near the critical temperature T_{AF}. For underdoped sample, the spatial profiles of the induced spin-density wave and charge-density wave orders could have stripe like structures at T < T_s, and change to two-dimensional isotropic ones at T > T_s. As a result, a vortex charge discontinuity occurs at T_s.Comment: 5 pages, 5 figure

Investigation of Roll-to-Roll Gravure Printing for Printed Electronics with Fine Features

Gravure printing is known to be cost competitive in manufacturing of printed electronic devices due to its capability to mass produce at lower costs. Current standard of gravure printed feature sizes is in a range of around 50 μm down to sub-10 μm, predominantly through small scale setups and specialized engraving. However, reliance on gravure cell design limits the scalability of printing over a large area due to the setup cost. In this study, ink viscoelastic behavior was modified to improve replication of gravure printed features over a large printing area of 300 mm web-width without a reduction in gravure cell dimension. Fine lines were printed using a high viscosity ink with a good replication of the nominal line width. Control over the printed features was performed through the variation of printing speed and the alteration of ink viscosity. The effects of ink viscosity and printing speed on the printed ink particle distribution and size were also examined. New methodologies of characterizing ink transfer were also developed to help understand the ink transfer processes: mass transfer and particle transfer. A deeper understanding of the thixotropic effect and shear recovery behavior of inks was achieved through simulations of shearing conditions

Leptogenesis from Pseudo-Scalar Driven Inflation

We examine recent claims for a considerable amount of leptogenesis, in some inflationary scenarios, through the gravitational anomaly in the lepton number current. We find that when the short distances contributions are properly included the amount of lepton number generated is actually much smaller.Comment: JHEP style, 11 pages. Corrected typ

Impact of E-business Technology on Operational Competence and Firm Profitability over Time

This study examines the evolution of the impact of e-business technology on operational competence and profitability using a panel dataset of 154 Spanish firms. We find that: (1) E-business technology has a positive effect on operational competence that decreases over time; and (2) the firm\u27s proficiency in exploiting a portfolio of operational capabilities has a positive impact on profitability that becomes more significant over time. The findings provide some insights on how the initial and subsequent IT investments affect operational competence and profitability over time. This study illustrates methodologically how to perform a partial least squares estimation using panel data

Theoretical Study of Injection-Locked Gyrotron Backward Wave Oscillators

[[abstract]]Summary form only given. The injection locking technique has been applied on the experiment of gyrotron backward wave oscillator (gyro-BWO) for phase control and spectral purity. The efficiency of the gyro-BWO was considerably enhanced when it was locked by an injected signal, which has never been thorough examined in the locked oscillator. Therefore, the physics underpinning is still unclear. A stationary model with modified boundary conditions was applied on studying the phenomena. The numerical results show that the injected power is absorbed by the electron beam when the oscillator is locked, then relative phases between the electrons and the wave are adjusted to increase the time the bunched electrons staying in the phase of losing energy, thus enhance the efficiency of the gyro-BWO. The various detuning determined by tuning the beam voltage or the external magnetic field is another critical factor to affect the efficiency enhancement of the locked oscillators, in addition to the power and frequency of the injected signal. The detailed results will be presented in the paper[[fileno]]2010132030019[[department]]物理

A smart cushion for real-time heart rate monitoring

10.1109/BioCAS.2012.64185122012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications53-5