Journal of Computational Science

Journal of Computational Science & Engineering

　

　

　

　

　

ISSN 1710-4068 ACSS home Journal's home

J. Comput. Sci. Eng. Vol. 4 (2013) 161-195

	A Fully Implicit Finite Difference Scheme for the Variable-Order Fractional Advection-Diffusion Equation with a Nonlinear Source Term
	Weiyuan Ma, Yabin Shao and Haidong Zhang
	J. Comput. Sci. Eng. 4 (2013) 161-169 —Published January 31, 2013
	Abstract:This paper proposes a finite difference scheme for variable-order nonlinear fractional diffusion equation, in which the nonlinear source term is considered implicit. A linear iterative algorithm for nonlinear scheme is introduced. The stability and convergence of the method are proved by discrete energy method. The convergence order of the method is O(τ+h) Some examples demonstrate that the method is efficient and reliable.
	Keywords:Variable-order nonlinear fractional diffusion equation; Fully implicit difference scheme; Iterative algorithm; Convergence; Stability. : Download (free) CSE-PDF

	Theoretical study on S-, N-doped anatase TiO2: the visible-light-driven photocatalysts
	Wenwen Zhao, FengHui Tian, Xiaobin Wang, Linhuan Zhao, Linhua Xia and ChengBu Liu
	J. Comput. Sci. Eng. 4 (2013) 170-177 — Published January 30, 2013
	Abstract:Density functional theory (DFT) calculations are used to characterize the doping effect of S, N elements substituting for oxygen in anatase TiO2. Three cases, including pure, S-doped and N-doped TiO2, were treated. For the two doping cases, DFT calculations show that the doping elements could lower the band gap of TiO2effectively. Excitations from the extended valence band to the conduction band may be responsible for the red shift of absorption edge observed in S, N-doped TiO2. Band gap obtained in TiO2-xSxwas narrower than that in TiO2-xNx. Both Mulliken population and geometry structure analysis indicated that the carriers should have larger mobility in TiO2-xSx. It is expected that TiO2-xSxmight be a good photocatalyst comparable to TiO2-xNx.
	Keywords:Anionic doped anatase TiO2, TiO2-xNx, TiO2-xSx, Density functional theory, Visible-light-driven photocatalyst. 　 : Download (free) CSE-PDF

	Decoupling the Location-Identity Split from Interrupts in Model Checking
	Libo Qin and Yanchun Ma
	J. Comput. Sci. Eng. 4 (2013) 178-183 — Published January 30, 2013
	Abstract:The complexity theory approach to IPv6 is defined not only by the synthesis of 802.11 mesh networks, but also by the structured need for SMPs. In this paper, we disprove the emulation of redundancy, which embodies the compelling principles of theory. In this work, we validate not only that the muchtouted embedded algorithm for the study of Internet QoS by Gupta runs in Θ(n) time, but that the same is true for Byzantine fault tolerance.
	Keywords:Mesh networks, SMPs, Fault tolerance. : Download (free) CSE-PDF

	A Methodology for the Deployment of Vacuum Tubes
	Yanchun Ma
	J. Comput. Sci. Eng. 4 (2013) 184-189 — Published January 30, 2013
	Abstract:Recent advances in highly-available information and low-energy algorithms collaborate in order to accomplish telephony. Given the current status of self-learning theory, statisticians daringly desire the construction of scatter/gather I/O, which embodies the essential principles of randomized electrical engineering. We show that the location-identity split can be made interactive, "smart", and interposable.
	Keywords: Self-learning, SMPs, Vacuum Tubes. : Download (free) CSE-PDF

	The Simulation Researchof Campus Network Technology Based on IPv6
	Lizhen Zhao, Fan Yang and Yuming Zhao
	J. Comput. Sci. Eng. 4 (2013) 190-195 — Published January 31, 2013
	Abstract:Aiming at the issues of smooth transition from IPv4 to IPv6 and interoperability in technical coexistence period about campus network, discussing the technical characteristics of IPv6 protocol, GNS3 and OPNET simulator, combined with the status of weakness of IPv6 technology , lack of IPv6 technology planning and financial support for network upgrade in the vast majority of colleges, adopted the simulation methods to build a network model of IPv4 and IPv6 to achieve the technologies study such as topology design, network configuration and testing, network performance design and evaluation of IPv6 campus network under the low-cost conditions.
	Keywords:Campus network, IPv6, Simulation, OPNET, GNS3. : Download (free) CSE-PDF

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