18,007 research outputs found

    RDLS-SS-DWT v. 0.9

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    This fileset contains the implementation of RDLS-DWT and SS-DWT in JPEG 2000 (RDLS-SS-DWT v. 0.9), which was used in a research described in: R. Starosolski, “Application of reversible denoising and lifting steps to DWT in lossless JPEG 2000 for improved bitrates,” Signal Processing: Image Communication, Vol. 39, Part A, pp. 249-63, DOI: 10.1016/j.image.2015.09.013, 2015 and R. Starosolski, “Skipping selected steps of DWT computation in lossless JPEG 2000 for improved bitrates,” submitted.   This software is intended for research purposes only; it is provided "as is"; author makes no warranty of any kind, either express or implied, with respect to this software. <br

    Experimental measurement of the electron energy distribution function in the radio frequency electron cyclotron resonance inductive discharge

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    Recently, the existence of electron cyclotron resonance (ECR) in a weakly magnetized inductively coupled plasma (MICP) has been evidenced [ChinWook Chung , Phys. Rev. Lett. 80, 095002 (2002)]. The distinctive feature of the ECR effect in the MICP is efficacious heating of low-energy electrons. In the present paper, electron heating characteristics in the MICP have been investigated by observing electron energy distribution function dependencies on various external parameters such as gas pressure, driving frequency, and rf power (electron density). It is found that the ECR effect on electron heating becomes enhanced with decreasing pressure or increasing driving frequency. The ECR heating becomes weak at high rf power due to the electron-electron collisions

    A SELF-ORGANIZING NEURAL NETWORK APPROACH FOR AUTOMATIC MESH GENERATION

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    A new automatic mesh generator, SOFT (Self-Organizing Finite-element Tessellation), based on self-organizing neural networks has been demonstrated. With user-supplied mesh density function and boundary mesh this mesh generator provides a graded mesh, of which asymptotic characteristics are quite similar to weighted Dirichlet tessellation and dual Delaunay triangulation. Local mesh restrictions such as fixed boundary and/or internal meshes are easily incorporated in this new mesh generator. Although the algorithm is applicable to general n-dimensional meshes 2-dimensional rectangular and triangular meshes are presented for simplicity
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