نتایج جستجو برای: natanz
تعداد نتایج: 68 فیلتر نتایج به سال:
In recent decades, the use of nitrogen fertilizers has increased irrespective of their effects on soil properties, agricultural products and, particularly, on environmental pollution. Nitrate easily leaches from soils into groundwater. The objective of this study was to determine temporal and spatial nitrate concentrations in groundwater in agricultural, industrial and urban regions in some par...
The present investigation was carried out to evaluate the influence of four clonal rootstocks (Quince A, Quince B, Quince C, PQBA29), and two seedling rootstocks (Gownjony and pear) on growth and performance of two pear scion cultivars namely Shahmiveh and Natanz. In the course of the experiment, vegetative growth indices including, current’s season shoot length, height of scion cultivars, trun...
Soil moisture is one of the most important parameters affecting dust emission flux. This study was conducted to investigate effects soil on vertical flux in central plateau region Iran. In this study, WRF-Chem (Weather Research and Forecast with Chemistry) model, GOCART (Global Ozone Chemistry Aerosol Radiation Transport) scheme, used estimate during a major storm from 19 21 July 2015, discrimi...
Rock formations and structures can be subjected to both static and dynamic loadings. Static loadings resulting from different sources such as gravity and tectonic forces and dynamic forces are intermittently transmitted via vibrations of the earth’s crust, through major earthquakes, rock bursts, rock blasting and drilling and also, traffic. Reaction of rocks to cyclic and repetitive stresses re...
Although mechanical failures or operational problems have often been discussed as causing problems in the IR-1 centrifuges, the crashing of such a large number of centrifuges over a relatively short period of time could have resulted from an infection of the Stuxnet malware. This malicious code seeks to take over an industrial control system in order to destroy equipment while hiding its presen...
isfahan province is located in the center of iran and has arid and semi-arid climate. in recent years, water shortage has increased in this region and has affected crop production. wheat is one of the most important crops of the province. in the present research, an index (dei) has been developed for drought evaluation using long term climatic data through application of principle components an...
Background Scorpions are among the world's venomous arthropods, they sting humans every year, suffering painful symptoms or losing their lives because of the venom. Odontobuthus doriae Thorell 1876 (Arachnida: Scorpionida: Buthidae) is a scorpion of medical importance and therefore its geographical distribution in Isfahan Province has been studied. Methods This descriptive cross-sectional stu...
BACKGROUND Zoonotic cutaneous leishmaniasis (ZCL) due to Leishmania major is increasing in many parts of Iran. This disease originally is a disease found in gerbils. Leishmania parasites are transmitted by sandflies that live and breed in gerbil burrows. Nested PCR amplified Leishmania ITS1-5.8S rRNA gene in both main reservoir host "Rhombomys opimus" and in the "Phlebotomus papatasi" main vect...
Background & Aim: Iran has a long history in ethnobotany and ethnopharmacology. The indigenous people in YahyaAbad area, is located in the conserved area of the Karkas mountains, are used many plants and natural material for treatment their diseases. YahyaAbad area is an important part of central mountains of Kashan, Central Iran. There are many plant species in this area which have medicinal ...
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