A5032695057- Electrochemical Analysis and Applications
- Metallurgical Processes and Thermodynamics
- nanoparticles nucleation surface interactions
- Orthopaedic implants and arthroplasty
- Rheology and Fluid Dynamics Studies
- Fluid Dynamics and Mixing
- Advanced oxidation water treatment
- Heat Transfer and Boiling Studies
- Minerals Flotation and Separation Techniques
- Water Quality Monitoring and Analysis
- Speech Recognition and Synthesis
- Carbon Dioxide Capture Technologies
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced Chemical Sensor Technologies
- Extraction and Separation Processes
- Electrospun Nanofibers in Biomedical Applications
- Advanced machining processes and optimization
- biodegradable polymer synthesis and properties
- Odor and Emission Control Technologies
- Speech and Audio Processing
- Surgical Sutures and Adhesives
- Electrodeposition and Electroless Coatings
- Injection Molding Process and Properties
- Aluminum Alloys Composites Properties
- Advanced Materials Characterization Techniques
Alexandria University
1994-2025
Minia University
2014-2024
Royal College of Obstetricians and Gynaecologists
2022
Menoufia University
2010
Kuwait University
1986-1992
University of Waterloo
1981-1983
Abstract Recent advancements in the field of biomedical engineering have underscored pivotal role biodegradable materials addressing challenges associated with tissue regeneration therapies. The spectrum presently encompasses ceramics, polymers, metals, and composites, each offering distinct advantages for replacement or repair compromised human tissues. Despite their utility, these biomaterials are not devoid limitations, issues such as suboptimal integration, potential cytotoxicity,...
Epoxy is considered to be the most popular polymer and widely used in various engineering applications. However, environmental considerations require natural materials-based epoxy. This necessity results further utilization of materials as a reinforcement for different types composites. Corn cob an example material that can agricultural waste. The objective present work improve economic feasibility corn by converting original into powder utilized reinforcing epoxy-based In experiment, was...
Dual-phase (DP) steels consist of a ferritic matrix dispersed with some percentage martensite, which gives the material good combination strength and ductility, along capacity to absorb energy enhanced corrosion protection properties. The purpose this work was study microstructural behavior (mainly pitting galvanic corrosion) DP steel compared that conventional rebar. To obtain steel, low-carbon were heat-treated at 950 °C for 1 h then intercritically annealed 771 75 min, followed by...
This study is focuses on the investigation of effect using TiO2 short nanofibers as a reinforcement an Al matrix corrosion characteristics produced nanocomposites. The ceramic used were synthesized via electrospinning by sol-gel process, then calcinated at high temperature to evaporate residual polymers. fabricated nanocomposites contain 0, 1, 3 and 5 wt.% (TiO2). Powder mixtures mixed for 1 h high-energy ball milling in vacuum atmosphere before being inductively sintered through...
Abstract Alum is used in the coagulation of raw water almost all treatment plants world‐wide. The sludge produced from this process usually thrown away i.e. wasted. In Egypt, thousands tons alum are annually across country costing millions dollars. This paper deals with recovery most available at sludge. involved following steps: concentrating 5% to 20% solids, acidification sulfuric acid, separating supernatent liquid, decolorizing it using charcoal, filtration, solution by evaporation, and...
Abstract In this work, anodic oxidation of C.I. direct blue 21 was carried out in an electrochemical reactor at a constant temperature 20°C. The technique found successful removing the color dye from aqueous solutions containing 0.5 M sodium sulfate. Variables studied were: initial concentration, solution flow rate to reactor, anode area, current density and time duration oxidation. It that removal increased with increasing density, rate. mass transfer coefficient increase decreasing area...
Biomedical applications, such as artificial implants, are very significant for the disabled due to their usage in orthopedics. Nevertheless, available materials applications have insufficient mechanical and tribological properties. The current study investigated properties of a biomedical metallic material, magnesium (Mg), after incorporating titanium dioxide nanofibers (TiO2) with different loading fractions. TiO2 were synthesized using electrospinning technique. ball-milling technique was...
This study investigates the enhancement of mechanical and tribological behavior in polymethyl methacrylate (PMMA) composites reinforced with graphene oxide (GO) as a solid lubricant filler for advanced biomedical applications, particularly dental implants. PMMA/GO were prepared varying weight percentages GO (0, 0.2, 0.5, 0.7, 1 wt. %) to assess their impact on material performance. A noteworthy improvement both tensile strength Young’s modulus was detected, reaching up 141% 10.6%,...
This paper describes an automatic system for the detection of some common pronunciation mistakes occurring in Quran recitation. It addresses application Arabic language rules. The is a basic step towards complete teaching Holy recitation focus this study to detect non proper chosen set emphatic and non-emphatic uttered letters. To achieve goal, first we have developed several algorithms extract discriminating feature from specific words that include letters interest. Then new semi approach...
The coronavirus disease 2019 pandemic has shown that a disposable surgical face mask is good protective wall against infection due to its ability prevent virus transmission from sick healthy people. Nevertheless, these masks are disposable, not ecofriendly, and single-use items. use disposal of traditional lead high secondary risks such as environmental pollution, pathogen transmission, overload demands, user discomfort. Nanotechnology one the most investigated strategies safely economically...
This paper presents an algorithm for segmenting a subset of emphatic and non-emphatic sounds automatically from continuously spoken Arabic speech. The important contribution this is to generate rules automatic segmentation these which can be extended the rest sounds. In addition, findings used other speech analysis problems such as data training recognizers, continuous systems, or build label databases. study has been done in context recited principles Holy Quran commonly known recitation...
Abstract The removal of phenol from a simulated wastewater effluent by adsorption on homogeneous mixture Maghara Coal and Activated Carbon in different proportions has been carried out fixed bed reactor. It was noted that the capacity activated carbon is 12.05 fold Coal. Variables studied were initial concentration, height, type adsorbent, namely GMC, GAC, (50%GMC+50%GAC), (25%GMC+75%GAC). volumetric flow rate solution temperature kept at 27.5 ml/min 27°C respectively. Also isotherm for both...
Abstract Decolorization of two direct dyes by ozone in aqueous medium was studied absence and presence some salts at room temperature. It found that zinc sulfate catalyses the process decolorization. Equations to describe allow prediction requirement were developed. The new findings this study would have an impact on wastewater treatment techniques using ozone.
Abstract An experimental set‐up was used to evaluate Henry's constant (H) of H2S in distilled water and one the sewage treatment plants Kuwait. Calculated values for were found agree with published works. For sewage, have a mean value 601 atm/mole fraction temperature range 20°C 40°C. Factors affected were: initial concentration, flow rate stripping fluid, pH, pK. Effect each factor investigated results correlated.