This paper addresses the application of integrated chargeability and resistivity method and grade data in modeling and evaluation of copper deposits. We argue that the relationship between IP, Rs and grade data may be used for modeling and reserve estimation and tested this argument for Sarbisheh copper deposit that is located in eastern Iran. Geology and mineralization situation of Sarbisheh d...

the nylon and nylon/lycra yarns were coated with electrically conductive polymers such as polyaniline and polypyrrole, via chemical polymerization process. electrical conductivity of the coated yarns was measured at variousstrain levels using two-point probe technique and their strain sensitivities were studied. the results showed that, electrical conductivity of the coated yarns decreased with...

a major portion of the iranian fig (ficus carica) industry is located in high-salinity regions, and salinity is an important limiting factor in the production of this fruit. the present study was conducted to investigate the changes of leaf antioxidant-enzyme activity, proline and total protein content in two fig cultivars with two leaf shapes: ‘anjir sabz’ with lobate and palmate leaves, and ‘...

this article deals with the engineering education of mechatronic in the different universities of canada, while every educational aspect of their curriculum is described in detail. this study shows that the desing of any educational program to some extend depends on the department where the program is carried out and the cooperation and help of the other departments. it seems that gradually thi...

this paper describes the impact of the distance and the size of the corona ring, on the magnitude anddistribution of electrical potential across the polymer insulators. the procedure is based on finiteelement method numerical analysis and stochastic optimization algorithm of differential evolution(de). the optimal selection of corona ring has a significant impact on the control of potential and...

We investigated the relationship between electrical alternans and cardiac electrical stability in a series of 20 dog experiments and in a pilot clinical study. Electrical alternans was detected in both the QRS complex and the ST-T wave by use of a novel multidimensional spectral technique. The magnitude of the alteration was expressed as the alternating electrocardiographic morphology index (AE...

the unilateral or bilateral lesion of the substantia nigra pars compacta (snc) by chemical neurotoxins such as 6-hydroxy dopamine (6-ohda) or 1- methyl-4- phenyl -1,2,3,6 – tetirahydro pyridine (mptp) are the most commonly and the main used methods for generating the animal models of parkinson’s disease (pd). but these agents are expensive, dangerous, difficult to use and inaccessible convenien...

SARNA, S. K., AND E. E. DANIEL. Electrical stimulation of gastric electrical control activity. Am. J. Physiol. 225(l): 125-131. 1973.Gastric electrical control activity in anesthetized dogs was stimulated by voltage pulses of 100 msec duration and lto 25-v amplitude. The gastric control waves could be entrained from any site in the electrically active region on the anterior and posterior sides....