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We demonstrate a general strategy to construct hierarchical TiO2 nanorod arrays (HTNRs) coupling with plasmon resonant metallic nanoparticles for dye-sensitized solar cells (DSCs). The electron transfer and interfacial recombination process have been optimized via the construction of photoanodes. Moreover, localized electric fields produced by the introduction of Au nanoparticles could excite dye...
Dual connectivity is a promising architecture for the future hyper-dense wireless cellular network to meet the rapidly increasing demand of wireless data transmission. In this architecture, the control plane (C-plane) and the user plane (U-plane) are split and a User Equipment (UE) simultaneously connects to two different cells: the Primary Cell (PCell) which is in charge of the C-plane, and the Secondary...
The traditional Root-MUSIC algorithm has a weak ability for the extraction of coherent sources. In this paper, an improved forward/backward spatial smoothing Root-MUSIC Algorithm is proposed. By reconstructing and weighting the covariance matrix of the uniform linear array and the subarrays according to certain rules, the modified algorithm could provide a better performance in direction of arrival...
A three dimensional kinetic Monte Carlo growth model with structured substrate is developed to simulate site-controlled growth of self-assembled GaAs/AlGaAs quantum dot islands. A variety of different structured substrates are qualitatively studied by kinetic Monte Carlo techniques with different growth temperature. Diffusion behavior of atoms on the structured substrate with square and circle nanohole...
Using a vector finite-element method, this paper theoretically explores the index-profile induced dispersion characteristics in a photonic crystal fiber of hexagonal symmetry. The cross section pattern of two dimensional PCF comprises five layers of elliptical hole with one hole missing in the center. The direction and size of the third layer are different from the other layers. We keep the area of...
To investigate the biomarkers of vascular cognitive impairment (VCI), we analyzed 30 VCI patients and 30 healthy controls using proteome technology. Peptides in sera were purified using magnetic beads, and analyzed by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) and ClinProTool software. Twenty-four peptides were significantly differently expressed between...
Theoretical calculations of exciton in InAs/InP self-assembled quantum wires are presented in this paper. The Coulomb interaction between the electron and hole is calculated by using a fast Fourier transformation. In our simulations, strain effects are taken into consideration. Finally, we obtain the exciton binding energy in quantum wires by solving 1D Schrodinger equation along the quantum wire...
This paper presents electronic structure of InAs/GaAs quantum dots in (111) direction. The cubic and truncated pyramidal shaped quantum dots are adopted. The electronic energy levels are calculated by solving a three-dimensional effective mass Shrödinger equation including a strain modified confinement potential and piezoelectric effects.
The work in this paper is based on a powerful function-fmincon in matlab and FEM, optimizing the shape and the position of dielectric rods surrounding the termination of a photonic crystal waveguide, in order to increase the directional emission. The method is simlpe, but can lead to useful results efficiently. More than fivefold improvement in power incident upon a target area over a simple termination...
Theoretical calculations of exciton in InAs/InP self-assembled quantum wires are presented in this paper. Coulomb interaction between electron and hole is calculated by fast Fourier transformation. In our simulations, strain effects are considered. Finally, we obtain the exciton binding energy by solving 1D Schrodinger equation along the quantum wire direction.
A novel analytical band-gap analysis of one-dimensional or two-dimensional rectangular photonic crystals is presented. Compared with earlier analytical analysis, the transfer matrix method used in this paper has made the conclusions more directly. And the analytical expression of the band-gap can be generalized to complicated situations.
The work in this paper is based on a powerful function--fmincon in matlab and Finite Element Method, optimizing the shape and the position of dielectric rods surrounding the termination of a photonic crystal waveguide, in order to increase the directional emission. The method is simple, but can lead to useful results efficiently. More than fivefold improvement in power incident upon a target area...
A novel analytical band-gap analysis of one-dimensional or two-dimensional rectangular photonic crystals is presented. Compared with earlier analytical analysis, the transfer matrix method used in this paper has made the conclusions more directly. And the analytical expression of the band-gap can be generalized to complicated situations.
Kinetic Monte Carlo simulations are applied on the epitaxial growth of self-assembled InAs quantum dots on GaAs substrate with periodic strain-relief patterns. We demonstrate that uniformly sized and regularly ordered island arrays can be obtained by controlling interruption time at the first sub-monolayer stage.
This paper proposed a novel neural network based on rough sets theory. Firstly a rule extraction method is discussed, and a set of rough rules is found from the given training data based on rough sets theory. Secondly, the structure and model of the neural network are designed according to these rules, and the training algorithm with high-precision of learning is formulated based on neural networks...
Part perfusion hyperthermia is an effective approach to tumor curing through which the tumor cells are killed by the high temperature, which is created by medicament perfuse to the pathological change area. Since the human body is a complicated system of heat exchange. It is difficult to obtain its accurate mathematic model and accurately measure the temperature of cancer tissue applying the conventional...
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