omerelsheikh

omerelsheikh

مدرس - عضو هيئة تدريس

كلية العلوم

العنوان: Sohag

1

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: SEM-EDX


2018-10-20 16:50:25 الكلمات المفتاحية CdO NWs, Vapor transport, FT-IR, SEM, Ellipsometer, SEM-EDX, Photoluminescence,
Synthesis, photoluminescence and optical constants evaluations of ultralong CdO nanowires prepared by vapor transport method
Ultralong CdO nanowires (NWs) were synthesized on Au coated Si and quartz substrates by using vapor transport method. The synthesis temperature was chosen via thermal gravimetry analysis (TGA) and it was 1150C. The formation of CdO was confirmed by energy dispersive analysis of X-ray (EDAX) and Fourier transform infrared (FT-IR) spectroscopy analysis. The CdO nanowires was found to grow via ... إقراء المزيد

2018-10-22 20:03:07 الكلمات المفتاحية Investigations methods, Corrosion, ancient Islamic copper coins, SEM-EDX,
Investigations methods to study corrosion of some ancient Islamic copper coins at Faculty of arts museum, Sohag university, Egypt
THROUGH THE TIME, COPPER AFFECTED BY DETERIORATION FACTORS THAT INTERACT WITH ENVIRONMENT. OXYGEN CAUSES CORROSION OF COPPER ARTIFACTS AND FORMS COPPER OXIDES, MEANWHILE IT STARTS TO MINERALIZE AND BACKS TO ITS NATURAL STRUCTURE. THIS RESEARCH STUDIED FIVE ISLAMIC COPPER COINS AT FACULTY OF ARTS MUSEUM IN SOHAG UNIVERSITY BY EXAMINATION AND ANALYTICAL METHODS TO IDENTIFY THE CORROSION NATURE AND ITS ... إقراء المزيد

2018-09-16 09:35:47 الكلمات المفتاحية Dielectric barrier discharge, Capacitive coupled plasma, Artificial ageing, SEM-EDX, FTIR,
Cleaning of architectural bricks using RF plasma "Metallic Stains
RF Plasma is a glow discharge typically generated through using oxygen and hydrogen as the input working gas. In the current study the radio frequency (RF) hydrogen plasma (H2) is used for removing some metallic stains (iron and copper) which affected the historical brick surfaces in Prince Yousef Kamal place. Untreated and treated surfaces were evaluated by OLS, EDX-SEM & ... إقراء المزيد

Magnetic NiFe2O4 nanoparticles: efficient, heterogeneous and reusable catalyst for synthesis of acetylferrocene chalcones and their anti‐tumour activity
A robust synthesis of magnetic NiFe2O4 nanoparticles via a hydrothermal technique was investigated. The prepared magnetic NiFe2O4 nanoparticles were characterized using powder X‐ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy (TEM), high‐resolution TEM, energy‐dispersive X‐ray spectroscopy, thermogravimetric analysis, infrared spectroscopy and vibrating sample magnetometry. XRD and TEM analyses confirmed the formation of single‐phase ultrafine nickel ferrite nanoparticles with highly ... إقراء المزيد