Structural, morphology and electrical properties of layered copper selenide thin film Tập 7 - Trang 379-384 - 2009
J. Ying Chyi Liew, Zainal A. Talib, W. Mahmood, M. Yunus, Zulkarnain Zainal, Shaari A. Halim, Mohd M. Moksin, Wan Mohd Yusoff, K. Pah Lim
Thin films of copper selenide (CuSe) were physically deposited layer-by-layer up to 5 layers using thermal evaporation technique onto a glass substrate. Various film properties, including the thickness, structure, morphology, surface roughness, average grain size and electrical conductivity are studied and discussed. These properties are characterized by X-ray diffraction (XRD), atomic force micro...... hiện toàn bộ
A theoretical forecast of the hydrogen bond changes in the electronic excited state for BN and its derivatives Tập 10 - Trang 116-123 - 2011
Dandan Wang, Ce Hao, Se Wang, Hong Dong, Jieshan Qiu
The relationship between electronic spectral shifts and hydrogen-bonding dynamics in electronically excited states of the hydrogen-bonded complex is put forward. Hydrogen bond strengthening will induce a redshift of the corresponding electronic spectra, while hydrogen bond weakening will cause a blueshift. Time-dependent density function theory (TDDFT) was used to study the excitation energies in ...... hiện toàn bộ
Notes on entropic characteristics of quantum channels Tập 11 - Trang 69-77 - 2012
Alexey E. Rastegin
One of most important issues in quantum information theory concerns transmission of information through noisy quantum channels. We discuss a few channel characteristics expressed by means of generalized entropies. Such characteristics can often be treated in line with more usual treatment based on the von Neumann entropies. For any channel, we show that the q-average output entropy of degree q ≥ 1...... hiện toàn bộ
A fluid generalization of membranes - 2011
Mark D. Roberts
In a certain sense a perfect fluid is a generalization of a point particle. This leads to the question as to what is the corresponding generalization for extended objects. Here the lagrangian formulation of a perfect fluid is much generalized by replacing the product of the co-moving vector which is a first fundamental form by higher dimensional first fundamental forms; this has as a particular ex...... hiện toàn bộ
Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear Tập 10 - Trang 1109-1115 - 2012
Gustavo P. Saracco, Giuseppe Gonnella, Davide Marenduzzo, Enzo Orlandini
The effects of an externally imposed linear shear profile in the Vicsek model of self-propelled particles is investigated via computer simulations. We find that the applied field changes in a relevant way both the equilibrium and dynamical properties of the original model. Indeed, short time dynamics analysis shows that the order-disordered phase transition disappears under shear, because the flow...... hiện toàn bộ
The use of laser technology to shape properties of the contacts of silicon solar cells and their structure Tập 12 - Trang 836-842 - 2014
Małgorzata Musztyfaga-Staszuk, Leszek A. Dobrzański
The paper presents the results of the investigation of the front contact manufactured using silver pastes (based on experimentally prepared silver powder) on monocrystalline silicon solar cells in order to reduce contact resistance. Various deposition and fabrication techniques were applied to improve the electrical properties of contacts. The aim of the paper was to apply an unconventional method...... hiện toàn bộ
Evolutionary dynamics of imatinib-treated leukemic cells by stochastic approach Tập 7 - Trang 541-548 - 2009
Nicola Pizzolato, Davide Valenti, Dominique Persano Adorno, Bernardo Spagnolo
The evolutionary dynamics of a system of cancerous cells in a model of chronic myeloid leukemia (CML) is investigated by a statistical approach. Cancer progression is explored by applying a Monte Carlo method to simulate the stochastic behavior of cell reproduction and death in a population of blood cells which can experience genetic mutations. In CML front line therapy is represented by the tyros...... hiện toàn bộ
Electronic excitations in ZnWO4 and Zn x Ni1−x WO4 (x = 0.1 − 0.9) using VUV synchrotron radiation Tập 9 - Trang 432-437 - 2011
Aleksandr Kalinko, Alexey Kotlov, Alexei Kuzmin, Vladimir Pankratov, Anatoli I. Popov, Liana Shirmane
The photoluminescence spectra and luminescence excitation spectra of pure microcrystalline and nano-sized ZnWO4 as well as the Zn
x
Ni1−x
WO4 solid solutions were studied using vacuum ultraviolet (VUV) synchrotron radiation. The samples were also characterized by x-ray powder diffraction. We found that: (i) the shape of the photoluminescenc...... hiện toàn bộ
Possible limitations of the classical model of orientational optical nonlinearity in nematics Tập 6 - Trang 575-581 - 2008
Marek Sierakowski, Małgorzata Teterycz
Orientational nonlinearity is the major mechanism of nonlinear optical phenomena observed in liquidcrystalline phase while it does not appear to such extent in any other materials. It is caused by distortion of initial molecular arrangement of an anisotropic medium induced by optical field. Deformation of the anisotropic structure means spatial changes of refractive index of the medium. This effec...... hiện toàn bộ