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We are presenting experimental work on an erbium-doped fiber operating in the superluminescent regime. Experimental results for different pump power levels and fiber length show that the theoretical and numerical model could render useful information for predicting the total output…

The design of a beam-forming network (BFN) for a multibeam-steerable antenna array using Coherently Radiating Periodic Structures (CORPS) is presented. In this design, the input ports of the feeding network are optimized using the particle swarm optimization (PSO) algorithm. A…

In this paper, we generalize an idea in a recent paper that embeds a binary pattern in the form of a binary image in the wavelet domain for images. Our generalization includes all four bands (LL, LH, HL and HH)…

This paper proposes an improved watermarking algorithm based on DCT (Discrete Cosine Transform). We carried out the algorithm as described as follows. First, we extended both rows and ranks of the watermark by using the proposed method before the embedding…

This paper presents a methodology to compute the inductances of the abc induction motor model considering mixed eccentricity. The winding function method (WFM) is employed to calculate the magnetizing inductances. Moreover, the air gap is approximated by an expression which…

The present article shows the design and test of a unified-processing device for detection and demodulation of narrow and broadband communication signals, as well as navigation signals from GLONASS and GPS systems. The specific processing for each type of signal…

Using the technique of Chromatin Immunoprecipitation, we have detected the formation of complexes between the homotrimer protein ring Proliferating Cell Nuclear Antigen, PCNA, and two fundamental regulators of the cell cycle, CdkA and Cyclin D4;2 along germination of maize seeds.…

Three accessions of habanero pepper (Capsicum chínense Jacq.), differing in the color of the fruits throughout the maturation process, were analyzed for antioxidants, namely carotenoids, ascorbate and glutathione. The mature fruits from the three accessions contained high levels of the…

In contrast to their counterparts in bacteria and animals the soluble inorganic pyrophosphatases from plant cells are active as monomers. The isoforms 1 and 4 from Arabidopsis thaliana have been characterized with more detail, but their three-dimensional structure is unavailable.…