نتایج جستجو برای: monzonite) have susceptibility less than 40 × 10
تعداد نتایج: 5005544 فیلتر نتایج به سال:
hired is a large gold prospecting area which is located in south khorasan province, in the east of iran. gold mineralization is found in 4 target areas covering about 24 km2. the host rocks are mainly tertiary volcanics, some jurassic and cretaceous sediments. sub-volcanic rocks are of magnetite series (gabbros to diorite) and ilmenite series (granite-granodiorite-monzonite) which have intruded...
in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...
determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...
The idea that hunter-gatherer societies experience more frequent famine than societies with other modes of subsistence is pervasive in the literature on human evolution. This idea underpins, for example, the 'thrifty genotype hypothesis'. This hypothesis proposes that our hunter-gatherer ancestors were adapted to frequent famines, and that these once adaptive 'thrifty genotypes' are now respons...
Daniella Chusyd thought her graduate career was on a predictable course when she accepted place the PhD programme at University of Alabama Birmingham (UAB), USA. ‘I intended to study exercise and nutrition/body composition in people’, recalls. But 5 week internship Tanzania threw Chusyd's plans into confusion. ‘I've always been animals’, admits, but experiences Africa working human/elephant con...
a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...
background: invasive squamous cell carcinoma of the vulva is primarily a disease of postmenopausal women and thus is rarely associated with pregnancy. case: we have reported on a young woman under 40 years old with vulvar carcinoma, which occurred during the pregnancy but optimal treatment was delayed to the postpartum period. this 37-year-old woman was diagnosed with 3x3 cm vulvar lesion, 2 we...
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