background the first commercial system for digital radiography was introduced in 1987, and it has evolved a great deal since then. currently, it is possible to enhance images in digital radiography. objectives the aim of this study is to evaluate the diagnostic accuracy of image enhancement in direct digital radiography as it relates to interproximal carries assessment. conclusions using these ...

Prechlorination is used as an initial step in water purification for public supply. One of the drawbacks of the prechlorination is the reaction between natural organic matters with chlorine forming trihalmethanes. This study aims at evaluating the performance of granular activated carbon (GAC) with sand as a dual filtering media with different depths on removal of trihalomethanes (THMs) for imp...

Technological, economical, cultural, and political changes constantly lead to new opportunities and challenges in today’s highly dynamic business environment. Increasingly, modern enterprises leverage the strategic instrument of Mergers and Acquisitions (M&A) to seize these tempting opportunities and adapt to the altering market conditions. As Information Technology (IT) penetrates the business...

Introduction: To write a computational program to calculate the average glandular dose in Mammography with Rh-Rh target-filter and also use it as an accurate and fast method of dose calculation founder different situations. Materials and Methods: In this research, the Sobol-Wu parameters are used to write a FORTRAN code for glandular dose calculation in Rh-Rh target-filter mammograms. The code ...

It has been proposed that all M -channel paraunitary (PU) multirate filter banks over GF(2) can be described using the product of basic lattice blocks. In this paper this conjecture is proven by considering a redefinition of degree-0 lattice blocks. A factorisation algorithm that factors all degree-J PU filter banks over GF(2) is presented. In the course of this work M -channel type-I matrices ...

Abstract This study dealt with the reduction of soil loss from variously managed grass filter strips. Slope plots under a rainfall simulator were employed in this study. In order to investigate the effect of grass filter strips on the reduction of soil loss, the amount of soil supplied was compared with soil loss in each plot. The reduction of soil loss from cut weeds was similar to that from n...

In this paper, we made an analysis on computational complexity of block least mean square (BLMS) finite impulse response (FIR) filter and decompose the filter computation into M sub-filters, where M = N/L, N is the filter length and L is the block-size. Each sub-filter acts like a short-length BLMS FIR filter of size L. The proposed decomposition scheme favors timemultiplexing the filtering com...

A power-law correlation based on an inverse filter Fourier-Radon-transform synthetic discriminant function (SDF) for facial recognition is proposed. In order to avoid spectral overlap and nonlinear crosstalk, superposition of rotationally variant sets of inverse filter Fourier-transformed Radon-processed templates is used to generate the SDF. For the inverse filter, the Fourier transform of M p...