omerelsheikh

omerelsheikh

مدرس - عضو هيئة تدريس

كلية العلوم

العنوان: Sohag

1

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Ferromagnetic


Impact of rare earth europium (RE-Eu3+) ions substitution on microstructural, optical and magnetic properties of CoFe2−xEuxO4 nanosystems
In this study, pure cobalt ferrite (CoFe2O4) nanoparticles and europium doped CoFe2O4 (CoFe2−xEuxO4; x = 0.1, 0.2, 0.3) nanoparticles were synthesized by the precipitation and hydrothermal approach. The impact of replacing trivalent iron (Fe3+) ions by trivalent rare earth europium (RE-Eu3+) ions on the microstructure, optical and magnetic properties of the produced CoFe2O4 nanoparticles was studied. X-ray diffraction (XRD) and ... إقراء المزيد

2018-11-24 23:24:04 الكلمات المفتاحية IRM, , SIRM, Heavy metals, Ferromagnetic, Brownian motion, Micromorphology,
BIOMAGENTIC MONITORING OF AIR POLLUTION USING DUST PARTICLES OF URBAN TREE LEAVES AT UPPER EGYPT
Six common tree species were used to check their suitability to use as magnetic biomonitors for particulate air pollution. The morphology and chemical composition of their leaf dust were identified using SEM/EDX. The results showed that the shape of particles are sphers, ovoid, irregular or grouped into aggregates; they were well within the size range of urban dust, especially hazardous ... إقراء المزيد

2018-11-25 00:38:38 الكلمات المفتاحية Spherules, Ferromagnetic, IRM,
Characterizing of Air Dust Particulate Pollutants Using Urban Trees Leaves
Dust accumulated on the tree leaves of six common tree species in the urban area of sohag, Egypt was investigated. Morphological and chemical composition of the dust particles were analyzed using a high resolution scanning electron microscope equipped with an energy-dispersive X-ray analyzer (HRSEM/EDX)and atomic absorption spectrophotometer. Also, their magnetic properties were studied Results showed that the shape of dust ... إقراء المزيد