many of the meteorological variables such as precipitation, strongly depend on the large scale atmospheric and ocean surface circulations.in the current study, the effect of climatic signals on the average monthly rainfall of the adjacent stations of sheshdeh and gharebolagh area was investigated during the statistical period twenty five years from 1985 to 2009. the regression and neural networ...

rainfall and flow rate are of the most important climatic and hydrologic parameters whose investigation and determination of their behavior are of great importance in water resources management. one of the most suitable methods available for assessment of hydro-climatological conditions in the watershed is trend analysis which is used to examine the changes of a variable during time. current st...

determination of an optimum sample size for the evaluation of sugar beet quality is of vital importance. a desirable sugar beet sample could represent confidently the sugar content and quality of delivered beets to the sugar factories. this experiment was carried out at research station of kamalshahr, karadj, iran. the experimental field was about 2000 m2 with the distance between rows and plan...

extended abstractintroductiona map is a drawing ground features on one side of the paper. the cartographic maps are representations of the earth upon a flat surface in the smaller scale than it’s true. large scale maps cover relatively small regions in great detail and small scale maps cover large regions such as nations, continents and the whole globe. logical connection between the features a...

human resource productivity is an important subject in theory and practice, so increase of productivity is the first priority in most of organizations. the main purpose of most organizations is creating value for their shareholders. so it is necessary to understand effect of human resource productivity in achieving this goal and find the obstacles. the purpose of this research is examining the ...

global concern of protection of the environment has led to researches on the effects of plants, natural extracts and organic materials to help maintain the postharvest quality of horticultural crops. throughout the present study, the effects of such natural products as: mint, thyme, savory, rosemary extracts, s-carvone, and humic acid on postharvest life of cut rose flowers, and the potential o...

the evaluation and comparison of somatotype with elite athletes is a method to predict the chances of success in sports particularly in the olympic sport of wrestling. the aim of the present study was to describe the somatotypic profile of 9-13-year-old boys in northern, mountainous and desert areas with a territorial planning approach and an emphasis on the geographical areas potential for wre...

extended abstract 1. introduction the diversity of impersonal constructions and the different approaches used in studying them have caused different and sometimes contradictory positions about their classification and the explanation of grammatical and semantic roles of their components. this article reveals the necessity of studying them with a new approach which pursues a common basis coverin...

drought resistance is a very important characteristic needed for plant survival especially at germination stage, in arid and semi-arid lands. phosphatase enzymes are widely found in plants. these enzymes are responsible for dephosphorylation of organic phosphate and altering it to mineral phosphate. germination experiments were conducted in two bread wheat cultivars (sardari and alvand) under s...

introduction rhodium metal is known for its stability in corrosive environments, physical beauty, and its unique properties. rhodium is now widely used for alloying platinum in thermocouples, crucibles, evaporating dishes, weighing boats windings for high-temperature furnaces. it has been applied as a coating material because of the hardness and luster of its surface. rhodium is present at abou...