Currently IPv6 is extremely popular with companies, organizations and Internet service providers (ISP) due to the limitations of IPv4. In order to prevent an abrupt change from IPv4 to IPv6, three mechanisms will be used to provide a smooth transition from IPv4 to IPv6 with minimum effect on the network. These mechanisms are Dual-Stack, Tunnel and Translation. This research will shed the light ...

We have constructed polymer-stabilized nematic liquid crystals by photopolymerizing diacrylate monomers in the nematic phase. The orientation of the liquid crystal was controlled by the polymer network. We studied the Freedericksz transition in these systems. Experimentally we studied the transition by measuring the capacitance of the liquid crystal cells as a function of applied voltage. The t...

The transition process from pediatric to adult health care for adolescents with chronic diseases is always challenging and can be even more so for adolescents with HIV disease. The purpose of this study was to describe characteristics and current practices surrounding the transition of adolescents from the clinics of the Adolescent Trials Network for HIV/AIDS Interventions to adult medical care...

In this paper, the nonlinear mechanism of phase transition in computer networks is analyzed, and a distributed proxy approach is introduced to improve network performance based on the two-dimensional coupling model. Theoretical analysis figures out that the nonlinear mechanism of router is the essential reason of network performance phase transition. Simulation results reveal that the extreme c...

Reconstructing the logical network from the transition matrix is benefit for learning the logical meaning of the algebraic result from the algebraic representation of a BN. And so far there has no method to convert the matrix expression back to the logic expression for a BN with an arbitrary topology structure. Based on the canonical form and Karnaugh map, we propose a method for reconstructing...

We show that spectral fluctuation of coexpression correlation matrices of yeast gene microarray profiles follows the description of the Gaussian orthogonal ensemble (GOE) of the random matrix theory (RMT) and removal of small values of the correlation coefficients results in a transition from the GOE statistics to the Poisson statistics of the RMT. This transition is directly related to the str...

contemporary iranian society is transiting from traditional outlook to modern attitudes. social chaos matched with behavioral and thinking chaos is characteristic of transition period. political structure, as a part of society, alongside the juridical, economic and social structure is transiting from traditional sovereignty to intellectual and legal one. political participation, as a tangible a...

Source address transition technologies, such Network Address Translation and Proxy, can be used to provide unauthorized private address space. The source address of packets originated in the private address space will be changed by NAT gateway or proxy server, which is hard for service providers to manage the edge network and trace source of attacks. This paper presents the source address trans...

The transition of the Network Information Center from SRI International in Menlo Park, CA, to Government Systems Inc. in Chantilly, VA, is officially scheduled for 1 October 1991. This includes the transition of services currently offered to DDN and Internet users by SRI. These services include network/user registration (i.e., network number and top level domain name assignment), on-line inform...

The derivation of material properties of chemical compounds directly from their chemical structure can be used to plan chemical syntheses more efficiently. Here, feed forward-back propagation neural networks are devised to predict the transition temperatures of smectic liquid crystalline compounds based on a set of data that contains 6304 different structural patterns. The trained networks were...