نتایج جستجو برای: neyshabour

تعداد نتایج: 78  

Journal: :پژوهش های زراعی ایران 0
سید حسین ثنایی نژاد علیرضا آستارایی مرجان قائمی پریسا میرحسینی

soil salinity is one of the main environmental problems affecting extensive area in the world. there are some problems with traditional data collection methods for soil studies. using the new methods and techniques such as remote sensing could overcome most of these problems. however using these data in areas with uncommon usages needed some researches to find the best calibration between the d...

Journal: :iranian journal of blood and cancer 0
dayyani m hedayati-moghaddam mr amini ar

background: a high prevalence of human t-cell lymphotropic virus type 1 (htlv-1) infection among general population in the northeast of iran has been reported. multi-transfused patients are known as ‘at-risk’ group for the infection. this systematic review and meta-analysis was conducted to estimate the prevalence of htlv-1 infection among iranian multi-transfused patients. materials and method...

اعلمی نیا, زهرا , حیدریان شهری, محمدرضا , همام, سید مسعود, کریم‌پور, محمدحسن,

Hassan Abad Au-Sb prospect area is located in north of Khorasan Razavi Province about 45 km souht of Neyshabour. Volcanic rocks (rhyolite, rhyodacite, trachyandesite and andesitic-basalt) and sub-volcanic intrusive (Eocene-Oligocene) such as biotite diorite porphyry, biotite hornblende diorite porphyry, hornblende monzonite porphyry, biotite micogranite, micogranodiorite, and granodiorite were ...

Introduction: Wind erosion and the influx of sandy soils to economic facilities and biological resources are one of the main problems in the country. 14 provinces, located in arid and semi-arid regions, face wind erosion. Wind erosion and the influx of sandy soils are two important indicators in the occurrence of desertification and a serious threat to arid areas. The best and lasting way to pr...

Extended abstract 1- Introduction Soil erosion by water is a dominant geomorphic process which threatens food security in most parts of the world .The geomorphic characteristics of a watershed play an important role in watershed hydrology, soil erosion processes and sediment yield. Geomorphic characteristics can be an indicator of soil erosion and sedimentation of a watershed. Geomorphic char...

Journal: :زمین شناسی اقتصادی 0
زهرا اعلمی نیا محمد حسن کریم پور سید مسعود همام

introduction pyrite is the most abundant sulfide mineral in low sulfidation ore deposits. experimental studies have shown that low-temperature ( 200°c) from hydrothermal or metamorphic fluids (butler and rickard, 2000). framboidal pyrite mostly occurs in sedimentary environments, though it could also form during metamorphism and hydrothermal alteration (scott et al., 2009). the pyrite formed te...

Journal: :پژوهش های جغرافیای طبیعی 0
الهه شفیعی سید احمد علوی نصیر نادری میقان

introduction tectonic of binaloud mountain ranges is controled by thrust faults system and folds related to these faults. parts of this mountain ranges and neyshabour plain is as study area in north eastern iran and between latitudes 36° 11´ 00 to 36° 30´ 00 and longitudes 58° 35´ 00 to 59° 00´ 00. in this paper we first study morphometric indices in this area then analyze drainages and allovia...

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