P. Picardo, G. Sciani “Multimedial Signal Transmission with Spread Spectrum Modulation for Transport Applications” The proposed system is a module for images transmission-reception based on the integration between source coding techniques, namely JPEG image coding, and channel coding techniques, namely Spread Spectrum Modulation. Such integration allows one to protect images information, throug...

let $r$ be a commutative ring and let $m$ be an $r$-module. in this article, we introduce the concept of the zariski socles of submodules of $m$ and investigate their properties. also we study modules with noetherian second spectrum and obtain some related results.

a multicone graph is defined to be join of a clique and a regular graph. a graph $ g $ is  cospectral with  graph $ h $ if their adjacency matrices have the same eigenvalues. a graph $ g $ is  said to be  determined by its spectrum or ds for short, if for any graph $ h $ with $ spec(g)=spec(h)$, we conclude that $ g $ is isomorphic to $ h $. in this paper, we present new classes of  multicone g...

The gas-filled hollow-core fiber compression and the optical filamentation technique are compared experimentally in a parameter regime suitable for intense few-cycle pulse generation. In particular, pointing stability, spectral properties, and spatial chirp are investigated. It is found that in the case of filamentation, the critical parameter for pointing stability is gas pressure inside the g...

If taken into account, the transmission of the particle-scattering turbulence –in addition to just the particles– through the shock front can change the effective compression ratio felt by the accelerating particles significantly from the compression of the underlying plasma. This can lead to significantly harder energy spectra than what are traditionally predicted assuming frozen-in turbulence...

Tensor-based morphometry is a prevailing tool that automatically computes longitudinal change in brain structure. We propose a new method named as pattern based with surface based morphometry on brain changes with compression. This method is used to improve sensitivity without increase in noise. Thus it will have enhanced power to detect differences within normal aging and along the spectrum of...

The following paper presents the results of tests conducted by the author in the field of verification of influence of JPEG lossy compression on the robustness of data hiding methods used for the colour image which has been transformed to the frequency domain. The data have been embedded to the Fourier magnitude spectrum of the image. The possibility of decoding the hidden data with two embeddi...

Robustness is one of the important issues in watermarking. In particular, robustness against JPEG compression is especially actual. Nowadays there are many different applications requiring image compression, such as Internet, satellite imaging, remote sensing, multimedia, preservation of art work and so on. In this paper, an effective watermarking technique based on the genetic algorithm optimi...

objective(s):the aim of this study was to improve flowability and compressibility characteristics of starch to use as a suitable excipient in direct compression tabletting. quasi-emulsion solvent diffusion was used as a crystal modification method. materials and methods: corn starch was dissolved in hydrochloric acid at 80˚c and then ethanol as a non-solvent was added with lowering temperature ...

hereby we report a patient with thalassemia major having extradural cord compression at t3-t9 levels due to a mass of extramedullary hematopoiesis (emh) tissue, whose treatment was successful with hypertransfusion therapy alone. the patient was a 23-year-old man who had not received regular blood transfusion since two years before admission. he suffered from paraparesis with a history of progre...