A5101449269- Phase-change materials and chalcogenides
- Chalcogenide Semiconductor Thin Films
- Glass properties and applications
- Quantum Dots Synthesis And Properties
- ZnO doping and properties
- Nonlinear Optical Materials Studies
- Thermal and Kinetic Analysis
- Organic Electronics and Photovoltaics
- Solid-state spectroscopy and crystallography
- Conducting polymers and applications
- Synthesis and properties of polymers
- Nonlinear Optical Materials Research
- Chemical Thermodynamics and Molecular Structure
- Optical properties and cooling technologies in crystalline materials
- Transition Metal Oxide Nanomaterials
- Atomic and Subatomic Physics Research
- Optical and Acousto-Optic Technologies
- Radioactive Decay and Measurement Techniques
- Soybean genetics and cultivation
- Polymer Nanocomposite Synthesis and Irradiation
- Ga2O3 and related materials
- Advanced Sensor and Energy Harvesting Materials
- Luminescence Properties of Advanced Materials
- Copper-based nanomaterials and applications
- Radiation Detection and Scintillator Technologies
Assiut University
2004-2021
Spawn quality is an important factor that affects the final yield in mushroom production. As most spawns are form of cereals, wheat grain, sorghum and corn seeds used as a carrier for growth mycelium. Inoculation grain spawn into media bags essential process. This inoculation process requires skill focus to avoid contamination wastage time material. Pellet can be made by using sawdust, rice straw or wood (dowel) carrier. makes it simple hold inoculate due its firm instead spawn. Strains...
Monodispersed ZnS nanoparticles (NPs) were prepared by the chemical precipitation method. Thermally induced structural, morphological and optical changes have been investigated using x-ray diffraction, high-resolution transmission electron microscopy, absorption, photoluminescence (PL), Fourier transform infrared Raman spectroscopy. It was found that D increases with increasing annealing temperature (Ta). The onset of phase transition from cubic to hexagonal structure takes place at 400 °C,...
Abstract The crystallization kinetics of the quaternary Sb 14.5 As 29.5 Se 53.5 Te 2.5 glassy alloy was studied under non‐isothermal conditions. method applied to experimental data obtained by differential scanning calorimetry (DSC), using continuous‐heating techniques. In addition, two approaches are used analyze dependence glass transition temperature ( T g ) on heating rate β ). One is empirical linear relationship between and ln other approach use straight line $ T^2_{\rm g} / vs. 1/ for...
Amorphous Gex Se90-x Sb10 thin films were prepared by thermal evaporation under vacuum onto glass substrates. Reflectance and transmittance measured in the wavelength range 190-900nm. The optical properties of as deposited UV-irradiated at different exposure times reported. compositional dependence constants (absorption coefficient, non-direct gap Eg, refractive index (n), extinction coefficient (k) evaluated discussed terms Ge content chemical bond network model.
Amorphous Ga20S75Sb5 and Ga20S40Sb40 thin films were prepared by thermal evaporation onto clean glass substrates. Transmittance reflectance measurements carried out at 300 K, in the wavelength range 400–800 nm, for virgin UV illuminated films. Reversible photodarkening is reported first time those The photo-induced shift non-direct optical energy gap determined discussed light of current models photodarkening. effect Sb content on band absorption edge also terms coordination number.
In addition to the conversion from p-type n-type conductivity that occurs in Ge–Se–Bi thin films when Bi is incorporated a certain concentration. We found that, these were illuminated UV light, after being annealed at glass transition temperature T g, photobleaching dominant for Ge20Se80−x x (x=0, 2.5, and 5 at.%), while Ge20Se72.5Bi7.5 photodarkening dominant. The photoinduced changes optical constants studied. refractive index (n) has been analysed according Wwmple–DiDominico single...
Experimental Farm, Agriculture Faculty, Assiut University to study the effect of foliar spray time by different zinc oxide nanoparticles sizes on productivity and quality some bread wheat cultivars.The experiment was laid out in randomized complete block design (RCBD) using split plot strips arrangement with three replications.Zinc dioxide size (control, 20.7, 23.0 27.0 nm) were allocated horizontally, while, cultivars (Sids-1, Sids-12 Gemmeaza-11) arranged vertically (30, 45 60 days after...