A novel concept of joint source-fountain coding for asynchronous wireless broadcast is presented. The traditional field of joint source-channel coding aims in both lossless data compression as well as reliable data delivery. Besides, fountain coding allows reliable broadcast without the need of feedback, and furthermore, asynchronous data access, i.e., each receiver is able to decide when it wa...

In this paper we consider the joint performance of fountain codes and 802.11a/g PHY modulation/coding. We consider optimality both in terms of maximizing goodput and minimizing energy, and results are presented for both theoretical and experimental channel models. In contrast to studies in cellular networks, we find that in 802.11a/g WLANs the cross-layer approach of a higher-layer fountain cod...

Fountain codes are becoming increasingly important for data transferring over dedicated high-speed long-distance network. However, the encoding and decoding complexity of traditional fountain codes such as LT and Raptor codes are still high. In this paper, a new fountain codes named LRF (Loss Rate Based Fountain) codes for data transfer is proposed. In order to improve the performance of encodi...

The influence of pH, conductivity and Ca ion concentrations of fountain solutions on the quality of tone, dot, line and text was investigated. Physico-chemical parameters of fountain solutions were analyzed by standard methods. Image quality assessment (IQA) was carried out using the ISO methodology and ImageJ software. The obtained data of the mechanical and optical tone value, dot circularity...

In August-October 1980, a sudden increase occurred in the number of cases of jaundice reported among residents of a rural, agricultural section of Lancaster County, Pennsylvania. Investigation confirmed the cases as hepatitis A and showed that the outbreak was associated with consumption of water from a water fountain in a hardware store and water from the adjacent family home, both of which ca...

We present the first measurements of radiance spectra of rainbows. The bows on two sunny days (3 and 6 June 2008) were produced by the fountain in the Parque de las Ciencias, Granada, Spain, that consists of a rectangular perimeter of 40 spray nozzles. Optical thickness of the spray from each nozzle was approximately 0.5. Spectral purity of the primary bow was highest for orange and blue, reach...

Dissolved oxygen (DO) concentration is an important water-quality parameter, and its estimation very for aquatic ecosystems, drinking water resources, agro-industrial activities. In the presented study, a new support vector machine (SVM) method, which improved by hybrid firefly algorithm–particle swarm optimization (FFAPSO), proposed accurate of DO. Daily pH, temperature (T), electrical conduct...

This paper presents a real-time water simulation framework with respect to wave propagation in flowing liquids. The presented method is based on the coupling of liquid flow simulation and simulation of surface waves. Physically, our system combines the solution of the Navier-Stokes Equations with the solution of the 2D Wave Equation. Numerically, we combine the concept of wave particles with a ...

We present the spectral and spatial evolution of H$_2$O masers associated with water fountain source IRAS 18043$-$2116 found in observations Nobeyama 45 m telescope Australia Telescope Compact Array. have new highest velocity components (at red-shifted side $V_{\rm LSR}\simeq376~\mathrm{km~s}^{-1}$ at blue-shifted LSR}\simeq$ $-165~\mathrm{km~s}^{-1}$), resulting spread $\simeq 540~\mathrm{km~s...