Search Results - "Hafez, Hisham"
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Hydrogen production from sugar beet juice using an integrated biohydrogen process of dark fermentation and microbial electrolysis cell
Published in Bioresource technology (01-12-2015)“…[Display omitted] •Integrated dark fermentation and microbial electrolysis cell was evaluated.•Hydrogen yield of 3.2molH2/molhexoseadded was achieved in dark…”
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The impact of furfural concentrations and substrate-to-biomass ratios on biological hydrogen production from synthetic lignocellulosic hydrolysate using mesophilic anaerobic digester sludge
Published in Bioresource technology (01-12-2016)“…•Enhancements in biohydrogen production at furfural concentrations of up to1g/L.•Furfural threshold concentration of ⩽1g/L was established.•A food- to…”
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Single and combined effect of various pretreatment methods for biohydrogen production from food waste
Published in International journal of hydrogen energy (01-08-2011)“…Four individual pretreatment methods: ultrasonication, heat, acid, and base and three combined pretreatment methods comprising ultrasonication with heat (UH),…”
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Journal Article Conference Proceeding -
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Efficacy and safety of deep transcranial magnetic stimulation for major depression: a prospective multicenter randomized controlled trial
Published in World psychiatry (01-02-2015)“…Major depressive disorder (MDD) is a prevalent and disabling condition, and many patients do not respond to available treatments. Deep transcranial magnetic…”
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Identifying the risk factors affecting the overall cost risk in residential projects at the early stage
Published in Ain Shams Engineering Journal (01-03-2022)“…Many previous studies have developed models for estimating the total cost, whether in the planning stage or the early stage of the project. However, models for…”
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Spatial congruency or discrepancy? Exploring the spatiotemporal dynamics of built-up expansion patterns and flood risk
Published in The Science of the total environment (10-03-2024)“…Most coastal cities have been experiencing unprecedented urbanization-induced flood risk, climatic events, and haphazard anthropogenic activities, jeopardizing…”
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Enhancing the Hardened Properties of Recycled Concrete (RC) through Synergistic Incorporation of Fiber Reinforcement and Silica Fume
Published in Materials (16-09-2020)“…Portland cement concrete is fragile in tension and it has numerous negative impacts on the environment. To deal with these issues, both fiber reinforcement and…”
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Semen parameters and hormonal profile in obese fertile and infertile males
Published in Fertility and sterility (01-07-2010)“…Objective To study the changes in semen parameters, gonadotropic and sex hormones, and serum leptin in obese fertile and infertile oligozoospermic men. Design…”
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A Systematic Review of the Discrepancies in Life Cycle Assessments of Green Concrete
Published in Applied sciences (01-11-2019)“…It is challenging to measure the environmental impact of concrete with the absence of a consensus on a standardized methodology for life cycle assessment…”
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Comparative assessment of single-stage and two-stage anaerobic digestion for the treatment of thin stillage
Published in Bioresource technology (01-05-2012)“…A comparative evaluation of single-stage and two-stage anaerobic digestion processes for biomethane and biohydrogen production using thin stillage was…”
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Hydrogen production and microbial kinetics of Clostridium termitidis in mono-culture and co-culture with Clostridium beijerinckii on cellulose
Published in AMB Express (20-04-2017)“…Cellulose utilization by hydrogen producers remains an issue due to the low hydrogen yields reported and the pretreatment of cellulose prior to fermentation…”
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Parametric study on the decarbonization potential of structural system and concrete mix design choices for mid-rise concrete buildings
Published in Materials and structures (01-05-2024)“…Mid-rise reinforced concrete buildings are projected to continue being the predominant typology for urban development. Thus, reducing the carbon footprint of…”
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Application of artificial neural networks for modeling of biohydrogen production
Published in International journal of hydrogen energy (19-03-2013)“…In this study, an artificial neural network (ANN) model was developed to estimate the hydrogen production profile with time in batch studies. A back…”
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Effect of organic loading on a novel hydrogen bioreactor
Published in International journal of hydrogen energy (2010)“…This study investigated the impact of six organic loading rates (OLR) ranging from 6.5 gCOD/L-d to 206 gCOD/L-d on the performance of a novel integrated…”
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Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Thickened Waste Activated Sludge
Published in Bioenergy research (01-06-2020)“…Investigating the impact of hydrothermal pretreatment (HTP) on organic solubilization and anaerobic acidification of thickened waste activated sludge (TWAS)…”
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Viability of ultrasonication of food waste for hydrogen production
Published in International journal of hydrogen energy (01-02-2012)“…Batch anaerobic studies were conducted to study the effect of ultrasonication as a pre-treatment method for pulp waste prior to anaerobic hydrogen production…”
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Journal Article Conference Proceeding -
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A Critical Review on the Influence of Fine Recycled Aggregates on Technical Performance, Environmental Impact and Cost of Concrete
Published in Applied sciences (01-02-2020)“…The aim of this critical review is to show the applicability of recycled fine aggregates (RFA) in concrete regarding technical performance, environmental…”
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Co-fermentation of glucose, starch, and cellulose for mesophilic biohydrogen production
Published in International journal of hydrogen energy (12-12-2014)“…The aim of this study was to assess the synergistic effects of co-fermentation of glucose, starch, and cellulose using anaerobic digester sludge (ADS) on the…”
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Impact of ultrasonication of hog manure on anaerobic digestability
Published in Ultrasonics sonochemistry (2011)“…The efficiency of ultrasonication as a pretreatment method for hog manure prior to anaerobic digestion is evaluated at specific energies of 250–30,000 kJ/kgTS…”
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A Resource-Bound Critical Analysis of the Decarbonisation Roadmaps for the UK Foundation Industries by 2050
Published in Environments (Basel, Switzerland) (01-07-2024)“…The foundation industries in the UK were responsible for emitting 42 Mt CO2eq in 2020, which is approximately 10% of the yearly territorial greenhouse gas…”
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