kinetics of the chemical leaching of chalcocite from a low-grade copper ore in a ferric sulfate medium was investigated using the constrained least square optimization technique. the experiments were carried out for different particle sizes in both the reactor and column at constant eh, ph, and temperature. the leaching rate increased with increase in the temperature. about 50% of the cu recove...

The deformation of a leaf is the aggregation of the deformation of all the cells on the leaf. Mesophyll cells and vascular bundle cells have distinctly different degree of rigidity for shrinkage. In order to simulate the deformation of an autumn leaf realistically we need the realistic venation distribution of the leaf. We modify Runions’s technique [Runions et al. 2005] by increasing the growi...

We obtain several results about the output rate and distribution of zeros and ones of the shrinking generator associated with two linear recurring sequences. These results are based on various bounds on the number of zeros of linear recurring sequences. Non-linear recurring sequences are considered as well.

Background and purpose: This retrospective study aimed to investigate the feasibility of shrinking field radiotherapy during chemoradiotherapy in non-small cell lung cancer (NSCLC). Patients and methods Ninety-seven patients with stage III NSCLC who achieved a good response to chemoradiation were analyzed. Computed tomography was performed after 40-50 Gy dose radiation to evaluate curative ef...

Algebraic attack is a recently proposed method to analyze the security strength of stream ciphers. This paper provides an comprehensive analysis of the security strength of shrinking generator against the algebraic attack. In our analysis, it will be shown that if the generator is not implemented carefully then it would be highly vulnerable against the algebraic attack. Mathematics Subject Clas...