the first step to quantify crop phenology is precise estimation of the parameters, which affect it. these parameters are mainly temperature and photoperiod. this study was conducted with eight sowing dates to quantify response of stem elongation rate (ser) to temperature and photoperiod in wheat (tajan cultivar). the regression models fitted to ser against temperature were flat, logistic, quadr...

recent studies on wavelet transform and fractal modeling applied on mammograms for the detection of cancerous tissues indicate that microcalcifications and masses can be utilized for the study of the morphology and diagnosis of cancerous cases. it is shown that the use of fractal modeling, as applied to a given image, can clearly discern cancerous zones from noncancerous areas. in this paper, f...

Background. Screw-retained restorations are favored in some clinical situations such as limited inter-occlusal spaces. This study was designed to compare stresses developed in the peri-implant bone in two different types of screw-retained restorations (segmented vs. non-segmented abutment) using a finite element model. Methods. An implant, 4.1 mm in diameter and 10 mm in length, was placed in t...

We introduce the notion of weighted watermarking for proof-of-ownership watermark protection of multimedia works that are the product of more than one author and where each author is considered to be of different importance relative to the other authors. We specifically examine weighted segmented watermarking for still images and generalise previous work on performance measurement of watermark ...

The cyclic segmented parallel prefix (CSPP) circuit is a varation on parallel prefix. Whereas ordinary parallel prefix computes prefix sums of a vector from the beginning, CSPP allows the starting point to move arbitrarily, with the data “wrapping around.” The wraparound is widely useful. We have used CSPP to redesign many components of a superscalar processor to run in time logarithmic in the ...

This paper analyzes price collusion in a repeated game with two submarkets: standard and premium quality segment. Within this setting, we study four types of price-fixing agreement: (i) segment-wide cartel the submarket only, (ii) (iii) cartels, (iv) an industry-wide cartel. We present complete characterization collusive pricing equilibrium examine corresponding effect on market shares welfare....