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Eşfahān, Iran

Vega F.J.,National Autonomous University of Mexico | Gholamalian H.,Hormozgan University | Bahrami A.,Esfahan University
Palaontologische Zeitschrift | Year: 2010

Four decapod crustacean species from the Middle Miocene Mishan Formation of Hormozgan Province, Southern Iran are described. Three species of leucosiid crabs represent the first fossil record for their respective genera outside the Indo-Pacific region. The oldest records for Leucosiasensu lato, Phylirasensu lato, and Arcania are from Middle Miocene deposits of the Indo-Pacific, and thus their paleobiogeographic distribution is extended for this lapse of time. Harpactocarcinus miocenicus n. sp. represents the youngest and most oriental occurrence for a typically Eocene genus, whose species are known mainly from Central Europe. This contribution represents the first formal report for Tertiary crustaceans from Iran. © 2010 Springer-Verlag. Source


Ameri H.,Kerman Graduate University of Technology | Dastanpour M.,Kerman Institute of Higher Education | Khalilizade H.,Payame Noor University | Zamani F.,Esfahan University
Arabian Journal of Geosciences | Year: 2014

Abundant and well-preserved assemblages of plant macrofossils occur from the Hojedk Formation at Babhutk, Kerman, Iran. This new locality is the first in the Jurassic of Kerman where the plant material is shown preserved. Eight species of seven genera were identified representing five different gymnosperm groups: Nilssonia cf. undulata, Nilssonia cf. orientalis, Elatides sp., Podozamites sp., and Williamsonia asseretoii and two pteridophyt groups: Equisetites laterale and Coniopteris sp. The collected flora suggests subtropical conditions at the time of deposition of the Hojedk Formation. Based on stratigraphical distributions of the encountered macrofossils, Bajocian-Bathonian age is suggested for the lower and middle unit of the Hojedk Formation. These plant fossils help confirm conclusions from recent geological studies that place the Kerman Basin of Iran during the Jurassic. © 2013 Saudi Society for Geosciences. Source


Enshaeieh M.,Islamic Azad University at Falavarjan | Nahvi I.,Esfahan University | Madani M.,Islamic Azad University at Falavarjan
International Journal of Environmental Science and Technology | Year: 2014

Production of microbial oil has attracted a great attention in recent years. The potential of lipid production by the yeast strains is the reason for using microorganisms for biodiesel production. Microbial lipid has high similarity to the oil obtained from plants and animals in type and composition. Production of oil from yeasts must be economical, so optimization of the cultivation condition to reach higher production must be done. Native oleaginous yeast, Cryptococcus albidus, was isolated from soil by the nitrogen-limited medium and screened by Nile red staining. Yarrowia lipolytica DSM 8218 was used for lipid production as a standard strain. C. albidus was an excellent oleaginous yeast, and the lipid quantity, dry biomass and lipid productivity of this strain were 11.81 g/l, 19.65 g/l and 60.1 %, respectively, in shaking flask cultivation at 150 rpm and 25 °C in nitrogen-limited medium containing per liter 75 g glucose, 1 g (NH4)2SO4, 1 g yeast extract, 3 g KH2PO4, 1.5 g MgSO4.7H2O, 0.15 g CaCl2, 0.06 g MnSO4.H2O, 0.02 g ZnSO4.7H2O and 0.15 g FeCl3.6H2O with pH adjusted to 6.5. Fourier transform infrared spectroscopy was used for analyzing and confirming the production of microbial oil in this study. © 2013 Islamic Azad University (IAU). Source


Ansari H.V.,Esfahan University
Advanced Studies in Theoretical Physics | Year: 2012

It is shown that contrary to this current belief that the electrostatic potential difference between the two conductors of a capacitor is the same potential difference between the two poles of the battery which has charged it, the first is two times more than the second. Source


Ansari H.V.,Esfahan University
Advanced Studies in Theoretical Physics | Year: 2012

It is shown that as Newton's third law holds in static discussions of Electromagnetism it holds also in dynamic discussions of it, ie where the motion of electric charge in the magnetic field arising from the magnetic static (or magnetostatic) poles is under consideration. As we know, there is some force exerted on a current-carrying wire in the magnetic field of a magnet. It is shown that this magnet is in fact the same enlarged magnetic needle in Oersted's experiment, and then there exists also some force exerted on the magnet due to the electric current in the wire. These two action and reaction forces are in opposite directions. We consider point magnetic charges as the sources of the magnetostatic fields, like the point electric charges for the electrostatic fields. Forms of the mutual effects of electric and magnetic charges on themselves and on each other are presented in the forms of vectorial relations. Using these relations, incorrectness of a usual manner which eventually leads to the deviation from the classical physics and to the rejection of the Galilean transformations is shown. Source

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