In complex task domains, such as games, students may exceed their teachers. Such tasks afford diverse means to tradeoff one type of performance for another, combining task elements in novel ways to yield method variations and strategy discoveries that, if mastered, might produce large or small leaps in performance. For the researcher interested in the development of extreme expertise in the wil...

Optimized forest degradation model (OFDM): an environmental decision support system for environmental impact assessment using an artificial neural network Ali Jahani, Jahangir Feghhi, Majid F. Makhdoum & Mahmoud Omid a Environment and Natural Resources Sciences Department, University of Environment, Karaj, Iran b Department of Forestry and Forest Economic, Faculty of Natural Resources, Universi...

The root is an important plant part contributing to peanut productivity underwater-limited conditions. Root volume, root surface area and root diameter may becharacters responding to pre-flowering drought (PFD) in peanut. The objectives ofthis study were to investigate the responses to PFD for root surface area, rootvolume and root diameter and to determine the inter-relationships among theresp...

chamran 2 cultivar with the pedigree attila 50y//attila/bacanora, originated from national cereal breeding program by crossing between chamran cultivar and  attila line in karaj (1996-97). the f1 plants were evaluated and selected in 1997-98 cropping season. the new cultivar was evaluated in six warm and dry southern research stations of the country (2004-2006). chamran cultivar with good adapt...

during grain development, appropriate water status of soil has key importance for starch accumulation in grains and hormone changes. for this, the study carried out on two iranian wheat cultivars pishtaz and karaj 3 in a factorial experiment based on randomized complete block design with three replications under irrigated and drought in a field experiment at research farm of agriculture college...

E. Azadegan , R. Ezzati Department of Mathematics, Islamic Azad University-Karaj Branch, Karaj, Iran |||||||||||||||||||||||||||||||Abstract In this paper, we present a new two-parameters family of iterative methods for solving non-linear equations and prove that the order of convergence of these methods is at least four. Per iteration of these new methods require two evaluations of the functio...

in order to study compatibility of 30 white bean genotypes under karaj climate, an experiment was conducted based on randomized complete block design with four replications. evaluation and statistical analysis was performed for 18 important traits. analysis of variance results showed that there are significant differences between varieties for all traits. results of genotypes means comparison w...

Iran is a country completely dependent on fossil fuel resources. In order to obtain a diversity of energy sources, it requires other resources, especially renewable energy. Utilization of wind energy appears to be one of the most efficient ways of achieving sustainable development. The quantification of wind potential is a pivotal and essential initial step while developing strategies for the de...