Personalization and adaptation of multi-media messages are well known and well studied problems. Ideally, each message should reflect its recipient’s interests, device capabilities, and network conditions. Such personalization is more difficult to carry out given a compound multimedia presentation containing multiple spatially and temporally related elements. This paper describes a novel formal...

Media-streaming applications require smooth patterns of data transmission and also benefit from efficient resource utilization. System-wise, the underlying congestion control mechanism should achieve fairness and maintain TCP-friendliness. In this context, we optimize Additive Increase Multiplicative Decrease (AIMD) congestion control for multimedia applications, within the framework of bandwid...

This paper studies the Hierarchical Modulation, a transmission strategy of the approaching scalable multimedia over frequencyselective fading channel for improving the perceptible quality. An optimization strategy for Hierarchical Modulation and convolutional encoding, which can achieve the target bit error rates with minimum global signal-to-noise ratio in a single-user scenario, is suggested....

In this work, we propose a joint audio-video fingerprint ACR technology for media retrieval. The problem is focused on how to balance the query accuracy and the size of fingerprint, and how to allocate the bits of the fingerprint to video frames and audio frames to achieve the best query accuracy. By constructing a novel concept called Coverage, which is highly correlated to the query accuracy,...

This paper proposes an optimized version of the Hamming code. The paper begins with identifying a seed that can be used as basis to generate large sizes Hamming codes. It then shows that starting with a message that is only two bits long, along with three parity bits; one can add extra message bits incrementally. This approach results in significant reduction in the circuitry and provides flexi...

Marine Bacillus species are potent producers of novel enzymes. Marine Bacillus VITRKHB was observed to be efficient for cellulolytic activity. It was employed for the production of extracellular cellulase. Cellulase was partially purified to 1.6-fold in a stepwise manner by ammonium sulfate precipitation, dialysis, and DEAE ion exchange chromatography. The molecular weight of purified protein w...

This paper presents an accurate and efficient approach to optimize radiation transport simulations in a stochastic medium of high heterogeneity, like the Very High Temperature Gas-cooled Reactor (VHTR) configurations packed with TRISO fuel particles. Based on a fast nearest neighbor search algorithm, a modified fast Random Sequential Addition (RSA) method is first developed to speed up the gene...

background: alginate is a linear polysaccharide consisting of guluronate (polyg) and mannuronate (polym) subunits. methods: in the initial screening of alginate-degrading bacteria from soil, 10 isolates were able to grow on minimal medium containing alginate. the optimization of cell growth and alginate lyase (algl) production was carried out by the addition of 0.8% alginate and 0.2-0.3 m nacl ...

background and objectives: entomopathogenic nematodes, belonging to the family heterorhabditis and steinernematidae, are reported to be symbiotically associated with specific bacteria and the secondary metabolites produced by these bacteria possess antimicrobial activity. in this study, bacteria were isolated from nematodes belonging to the family rhabditidae, and the antimicrobial activity was...