diab_a_k

عبده كمال دياب حماية

استاذ - قسم الفيزياء

كلية العلوم

العنوان: جامعة سوهاج - كلية العلوم بسوهاج - قسم الفيزياء

29

إعجاب
8 3 10 13 2 8 775 302
109

أضيف حديثا
  • المقررات الدراسية 8
  • ملحقات المقررات الدراسية 3
  • واجبات المقررات الدراسية 10
  • المنشورات و المؤلفات 13
  • ساعات مكتبية 2
  • الاعلانات 8
  • عدد الملفات المرفوعه 5
  • كل التنزيلات 39

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: TEM

Steel slag as a raw material for preparing magnetite and akaganéite nanoparticles

2018-10-05 13:23:42 الكلمات المفتاحية EDAX, Steel slag, magnetite, akaganéite, nanoparticles, TEM, SEM, XRD,
Steel slag as a raw material for preparing magnetite and akaganéite nanoparticles
11 إقراء المزيد

Doping of Nano Zinc Ferrites by Chromium: Structural and Magnetic Properties Studies

2018-11-17 06:02:37 الكلمات المفتاحية Doping, TEM, SEM, XRD, superparamagnetic materials, Ferrites, VSM,
Doping of Nano Zinc Ferrites by Chromium: Structural and Magnetic Properties Studies
A SERIES OF CHROMIUM-SUBSTITUTED ZINC FERRITES (CRXZN FE2-XO4 WITH = 0.00, 0.10, 0.20, 0.30, 0.40) WERE SYNTHESIZED VIA HYDROTHERMAL METHOD. THE STRUCTURAL CHARACTERIZATIONS OF ALL THE PREPARED SAMPLES WERE DONE USING XRD, FTIR AND EDAX, TEM, HR-TEM AND TGA MEASUREMENTS . THESE STUDIES CONFIRMED THE FORMATION OF SINGLE-PHASE INVERSE SPINEL STRUCTURE IN ALL THE COMPOSITIONS. FROM HR-TEM MEASURMENTS, CRYSTALLINITY ARE ... إقراء المزيد

Restructuring of AuPd Nanoparticles Studied by a Combined XAFS/DRIFTS Approach

2018-11-01 03:02:10 الكلمات المفتاحية Au-Pd supported catalysts, XAFS/DRIFTS, EXAFS, TEM,
Restructuring of AuPd Nanoparticles Studied by a Combined XAFS/DRIFTS Approach
The use of AuPd nanoparticles in catalysis is widespread, with the activity being attributed to their precise structural properties. We demonstrate the restructuring of AuPd nanoparticles under CO oxidation conditions using a combined XAFS/DRIFTS approach. The fresh catalyst exhibits PdO islands at the surface of the nanoparticles, which are reduced under reaction conditions, a process observed via both DRIFTS and ... إقراء المزيد

Electron Microscopic Study Of Spermatozoa In Smokers.

2018-10-31 03:55:02 الكلمات المفتاحية Spergiarszoa, , .s;13M, , ·:TEM, S, SEM, TEM, spermatozoa,
Electron Microscopic Study Of Spermatozoa In Smokers.
Objectives: .'I:o detect the .. effect of cigarette smoking onssemen parameters, detectefhe morphological abnormalities by scanning electron microscope (SBM) and to detect the ,pltra· structural changes by using transmission electron microscope (TEM): · ,· .. . " Setting; (?utpatjent clinic o;J; Dermatology and Venereology Department, So~ag University Hospitals ir1d Electron Microscope Uriit at So hag Faculty of Science. " ·' ... إقراء المزيد

A Robust Synthesis of Magnetite Nanoparticles of Desired Size and the Functionalization Thereof

2018-10-06 08:41:37 الكلمات المفتاحية superparamagnetic materials, VSM, TEM, Robust Synthesis, Magnetite Nanoparticles, Functionalization, SEM, IR,
A Robust Synthesis of Magnetite Nanoparticles of Desired Size and the Functionalization Thereof
The synthesis of magnetite nanoparticles is an area of permanent interest in view of their high technological applications including Biomedicine and Biosensing. These nanoparticles are used as enhanced magnetic resonance imaging (MRI) agents, for biological separation and magnetic drug delivery systems, and magnetic hyperthermia treatment [1]. Magnetite nanoparticles of about 20 nm in diameter and low polydispersity were prepared heating ... إقراء المزيد

Sol–gel Derived Mixed Oxide Zirconia: Titania Green Heterogeneous Catalysts and Their Performance in Acridine Derivatives Synthesis

2018-10-05 14:06:28 الكلمات المفتاحية ZrO2 TiO2, Sol gel, Basic catalyst, TEM, XRD, Acridine synthesis,
Sol–gel Derived Mixed Oxide Zirconia: Titania Green Heterogeneous Catalysts and Their Performance in Acridine Derivatives Synthesis
Various zirconia content in ZrO2–TiO2 mixed oxide catalysts (x=5, 10, 20 ZrO2wt%) were synthesized by cost-effective sol–gel process and characterized by different techniques, i.e. XRD diffraction patterns, TG– DTA analyses, FTIR spectroscopy, N2 adsorption/desorp-tion measurements, and TEM microscope. The investiga-tion of the acidic/basic properties was studied by means of FTIR spectroscopy using pyridine as an adsorbed mole-cule. Characterization estimates exhibit ... إقراء المزيد

Removal of Cd(II) ions From Aqueous Solution using Nano sized Moringa Oleifera

2018-10-05 12:22:38 الكلمات المفتاحية Adsorption capacity, Removal, SEM, Cd(II) ions, aqueous solution, Nano Sized, TEM, EDAX, Effeciency, efficiency, Moringa Oleifera,
Removal of Cd(II) ions From Aqueous Solution using Nano sized Moringa Oleifera
This research aims to study the effect of nano sized _Moringa oleifera_ on adsorption of Cd2+ ions from aqueous solution. The investigated biosorbent was characterized by FTIR, SEM, TEM, XRD and EDS techniques. The influence of pH, temperature, adsorbent dosage, contact time, metal ion concentration and chemical treatment of biomass were investigated. The maximum capacity (qm) of Cd2+ ions biosorption ... إقراء المزيد

Doping of Nano Cobalt Ferrites by Cupper: Structural and Magnetic Properties Studies

2018-10-05 12:09:59 الكلمات المفتاحية EDAX, XRD, particle size, Magnetic properties, structural, Cobalt Ferrites, Doping, TEM, SEM, FT-IR,
Doping of Nano Cobalt Ferrites by Cupper: Structural and Magnetic Properties Studies
A series of Cupper-substituted cobalt nano ferrites (CuxCo1-x Fe2O4 with = 0.00, 0.10, 0.20, 0.30 and 0.4) was synthesized via hydrothermal method. The structural characterizations of all the prepared nanoparticles were performed using powder x-ray diffraction, EDAX and FTIR analyses. These studies confirmed the formation of single-phase spinel structure in at lower compositions. The increase in the value of lattice ... إقراء المزيد

Nano sized ternary Cu(II) complexes Encompassing Salicylaldehyde Derivatives and Amino Acids as an Effective Strategy for Antimicrobial Activity Improvement and DNA Interaction

2018-10-05 12:14:37 الكلمات المفتاحية amino acid, Nano Sized, Cu(II) complexes, DNA interaction, Salicylaldehyde Derivatives, TEM, IR, TGA, Conductivity,
Nano sized ternary Cu(II) complexes Encompassing Salicylaldehyde Derivatives and Amino Acids as an Effective Strategy for Antimicrobial Activity Improvement and DNA Interaction
A series of ternary Cu(II) complexes encompassing ONO donor Schiff base amino acid ligands were synthesized from condensation of 3–methoxysalicylaldehyde (MS) or 4-diethylamino salicylaldehyde (DS) with α-amino acids (L-phenylalanine (Phe), L-histidine (His), DL-tryptophan (Trp)) as primary ligand and 2, 4-bipridyl (DP) as secondary ligand. All the prepared compounds were characterized by melting points, decomposition temperatures, elemental analysis, UV-Vis, IR spectra, ... إقراء المزيد

Disposal of Heavy Transition Cd(II) ions from Aqueous Solution utilizing Nano Sized Flamboyant Pod (Delonix regia)

2018-10-03 10:12:16 الكلمات المفتاحية TEM, SEM, IR, XRD, Delonix regia, lamboyant Pod, Nano Sized, Disposal, Cd(II) ions, Adsorption, Toxic,
Disposal of Heavy Transition Cd(II) ions from Aqueous Solution utilizing Nano Sized Flamboyant Pod (Delonix regia)
The absorption of toxic heavy metal by natural adsorbents from water were indicated by investigation the effect of nano sized (_Delonix regia _(DR)) and (CADR) citric acid_ Delonix regia_ chemically modified adsorbent for removing the Cd2+ ions. Different techniques were employed for characterizing the adsorbent (_Delonix regia_) such energy dispersive analysis of X-ray (EDAX), Fourier transform infrared spectroscopy (FT-IR), Transmission ... إقراء المزيد