Though discrete particle simulation (DPS) has been widely used for investigating gas-solid flows from a more detailed level as compared to traditional two-fluid models (TFM), it is still seriously limited by the computational cost when large scale systems are simulated. GPUs (graphic processing units), with their massive parallel architecture and high floating point performance, provide new pos...

This paper presents fully automatic approach for information extraction from digitized gray level images of Telecom Egypt diagrams. The information are feed into database system for later use by Telecom Egypt technicians staff. The first step is to separate between the graphic components and the text associated to them. The segmented texts are recognized by OCR system. The diagrams are segmente...

In this research paper we modeled a DPS when the firm's capacity is limited and a due-date guarantee may be required or favored by some customers. We suggest a promising approach to integrate a two-tier one-of-a-kind production supply chain with no dominant tier. We formulated a dynamic Bellman model to compute the optimal price quotes. By comparing DPS with SPS and analyzing the computational ...

Let P be a lattice polytope in Rn , and let P∩Z n = {v1, . . . , vN }. If the N+ ( N 2 ) points 2v1, . . . , 2vN ; v1 + v2, . . . , vN−1 + vN are distinct, we say that P is a “distinct pairsum” or “dps” polytope. We show that if P is a dps polytope in Rn , then N ≤ 2n , and, for every n, we construct dps polytopes in Rn which contain 2n lattice points. We also discuss the relation between dps p...

Polarization control is at the heart of high-capacity data optical communication systems, such as polarization-division multiplexers and Stokes vector modulation transmitters. Despite passive polarization being mature, realization monolithically integrated controllers single longitudinal mode light sources, distributed-feedback (DFB) lasers, importance. In this research, we report an AlGaInAs m...

This paper proposes a novel direct policy search (DPS) method with model selection for partially observed Markov decision processes (POMDPs). DPSs have been standard for learning POMDPs due to their computational efficiency and natural ability to maximize total rewards. An important open challenge for the best use of DPS methods is model selection, i.e., determination of the proper dimensionali...

This paper presents a new hybrid wireless communication structure that use both optical and RF communication to avoid traffic collision problem happened in normal wireless communication. The new communication protocol can be used to create a wireless communication with large number nodes. According to strictly scheduled wireless transmission, each wireless node transmit packets in a unique time...

A widely used technique to integrate decision procedures (DPs) with other systems is to have the DPs emit proofs of the formulas they report valid. One problem that arises is debugging the proof-producing code; it is very easy in standard programming languages to write code which produces an incorrect proof. This paper demonstrates how proof-producing DPs may be implemented in a programming lan...

The modulation of spin phase produced by Carr-Purcell-Meiboom-Gill (CPMG) sequence in combination with constant magnetic field gradient is appropriate to probe the displacement power spectrum (DPS). The spin-echo attenuation is directly proportional to the DPS value at the applied modulation frequency. Relaxation and selective excitation effects can be factored out while probing the DPS. The mo...

This article addresses two unsolved measurement issues in dynamic problem solving (DPS) research: (a) unsystematic construction of DPS tests making a comparison of results obtained in different studies difficult and (b) use of time-intensive single tasks leading to severe reliability problems. To solve these issues, the MicroDYN approach is presented, which combines (a) the formal framework of ...