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Clean Energy 2023年第3期7卷 654-670页

作者： Saad A.El-Sayed mohamed A.Ismail mohamed E.mostafa Emad H.Noseir tarek m.khass mechanical Power Engineering Department Faculty of EngineeringZagazig UniversityAl-SharkiaEgypt mechanical Engineering Department College of EngineeringKing Faisal UniversityAl-AhsaSaudi Arabia Environmental Engineering Department Faculty of EngineeringZagazig UniversityAl-SharkiaEgypt

This study examines the large amount of agricultural waste produced in Egypt between 2010 and 2019 by analysing data from various departments within the Agriculture *** also provides a comprehensive database on the biomass available from agricultural waste in Egypt and its potential applications for producing power,heat and chemical *** biomass-pyrolysis systems powered by solar energy are used,research demonstrates the potential to convert agricultural waste into a variety of chemical *** approach utilizes solar energy,a clean and renewable source,and has wide-ranging industrial and power generation *** Egypt’s reliance on agriculture,the country currently utilizes little biomass for energy production and has not previously used it as a source for creating chemical products,which could potentially save on the imported oil used in these *** findings of the study are graphically presented using histograms,pie charts,*** overall production of residues reached the 30-mt level in *** it contains the most rice-cultivated land,Dakahlia(Lower Egypt region)produces the highest percentage of the total residue(37.17%).Qena governorate(Upper Egypt region)produces 1.14 metric tons of residues,with sugarcane accounting for 20.3%of the total.

关键词： biomass agro-residue solar radiation pyrolysis chemical products sustainability

A critical review towards the causes of the iron-based catalysts deactivation mechanisms in the selective oxidation of hydrogen sulfide to elemental sulfur from biogas

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Journal of Energy Chemistry 2024年第3期90卷 388-411,I0010页

作者： mostafa tarek Janaina S.Santos Victor márquez mohammad Fereidooni mohammad Yazdanpanah Supareak Praserthdam Piyasan Praserthdam Center of Excellence on Catalysis and Catalytic Reaction Engineering(CECC) Department of Chemical EngineeringFaculty of EngineeringChulalongkorn UniversityBangkok 10330Thailan High-Performance Computing Unit(CECC-HCU) Center of Excellence on Catalysis and Catalytic Reaction Engineering(CECC)Chulalongkorn UniversityBangkok 10330Thailand

Hydrogen sulfide(H_(2)S) not only presents significant environmental concerns but also induces severe corrosion in industrial equipment,even at low *** various technologies,the selective oxidation of hydrogen sulfide(SOH_(2)S) to elemental sulfur(S) has emerged as a sustainable and environmentally friendly *** to its unique properties,iron oxide has been extensively investigated as a catalyst for SOH_(2)S;however,rapid deactivation has remained a significant *** causes of iron oxide-based catalysts deactivation mechanisms in SOH_(2)S,including sulfur or sulfate deposition,the transformation of iron species,sintering and excessive oxygen vacancy formation,and active site loss,are thoroughly examined in this *** focusing on the deactivation mechanisms,this review aims to provide valuable insights into enhancing the stability and efficiency of iron-based catalysts for SOH_(2)S.

关键词： Selective oxidation of H_(2)S Iron-based Catalysts mechanism of deactivation Sulfur or sulfate deposition Transformation of iron species Sintering SDG 7

Smart prediction of liquefaction-induced lateral spreading

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Journal of Rock mechanics and Geotechnical Engineering 2024年第6期16卷 2310-2325页

作者： muhammad Nouman Amjad Raja tarek Abdoun Waleed El-Sekelly New York University(NYU)Abu Dhabi Abu Dhabi129188United Arab Emirates University of management and Technology Lahore54372Pakistan Department of Civil and Environmental Eng. Rensselaer Polytechnic Institute(RPI)1108th StreetJEC 4049TroyNY12180USA Department of Structural Engineering Mansoura UniversityMansoura35516Egypt

The prediction of liquefaction-induced lateral spreading/displacement(Dh)is a challenging task for civil/geotechnical *** this study,a new approach is proposed to predict Dh using gene expression programming(GEP).Based on statistical reasoning,individual models were developed for two topographies:free-face and gently sloping *** with a comparison with conventional approaches for predicting the Dh,four additional regression-based soft computing models,*** process regression(GPR),relevance vector machine(RVm),sequential minimal optimization regression(SmOR),and m5-tree,were developed and compared with the GEP *** results indicate that the GEP models predict Dh with less bias,as evidenced by the root mean square error(RmSE)and mean absolute error(mAE)for training(i.e.1.092 and 0.815;and 0.643 and 0.526)and for testing(i.e.0.89 and 0.705;and 0.773 and 0.573)in free-face and gently sloping ground topographies,*** overall performance for the free-face topology was ranked as follows:GEP>RVm>m5-tree>GPR>SmOR,with a total score of 40,32,24,15,and 10,*** the gently sloping condition,the performance was ranked as follows:GEP>RVm>GPR>m5-tree>SmOR with a total score of 40,32,21,19,and 8,***,the results of the sensitivity analysis showed that for both free-face and gently sloping ground,the liquefiable layer thickness(T_(15))was the major parameter with percentage deterioration(%D)value of 99.15 and 90.72,respectively.

关键词： Lateral spreading Intelligent modeling Gene expression programming(GEP) Closed-form solution Feature importance

Porous Shish-Kebab Structure Prepared from Oriented UHmWPE Films by Processing in Supercritical CO_(2)

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Chinese Journal of Polymer Science 2024年第1期42卷 97-104,I0009页

作者： Sergey A.Lermontov Aleksey V.maksimkin Nataliya A.Sipyagina tarek Dayyoub Alena N.malkova Evgeniy A.Kolesnikov Elena A.Straumal Inna O.Gozhikova Saidkhodzha G.Nematulloev Dmitry V.Telyshev Institute of Physiologically Active Compounds of the Russian Academy of Sciences Chernogolovka 142432Russia Institute for Bionic Technologies and Engineering I.M.Sechenov First Moscow State Medical University(Sechenov University)Moscow 19991Russia National University of Science and Technology"mISIS"moscow 119049 Russia Institute of Biomedical Systems National Research University of Electronic TechnologyZelenogradMoscow 124498Russia

For the first time, a highly crystalline porous shish-kebab structure with a high degree of crystallinity was obtained by using a combination of two methods for the formation of porous polymeric materials. A treatment procedure using supercritical carbon dioxide(sc CO_(2))was carried out for oriented ultrahigh molecular weight polyethylene(UHmWPE) films, which provided special conditions for the crystallization of dissolved UHmWPE macromolecules on the surface of oriented UHmWPE crystals. The prepared porous materials were investigated by scanning electron microscopy(SEm) and differential scanning calorimetry(DSC). The particularity of the obtained porous shish-kebab is the absence of the amorphous phase between lamellar crystals(kebabs). The obtained pores had an oval shape, and they were oriented in the orientation direction of the UHmWPE macromolecules. The pore size ranged from 0.05 μm to 4 μm. Controlling the conditions for the crystallization of the UHmWPE macromolecules using supercritical CO_(2) gives the possibility to control the size of both lamellar disks and pores formed.

关键词： UHmWPE Supercritical CO_(2) Porous shish-kebab structure

The Effect of Core Eccentricity on the Structural Behavior of Concrete Tall Buildings

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Journal of Civil Engineering and Architecture 2024年第3期18卷 112-117页

作者： tarek Anwar Taha Awida Civil and Architecture Engineering Department College of EngineeringInternational University of Kuwait(IUK)Ardiya Government AreaKuwait

The main purpose of this paper is to investigate the effect of core eccentricity on the structural behavior of concrete tall *** buildings of 55 floors with plan dimensions 48.0×48.0 m2 were *** cases of main core locations are studied:centric(A),eccentric by one sixth(B)and one third(C)of building *** three-dimensional finite element method has been used in conducting structural analysis through ETABS *** and lateral(wind and seismic)loadings are applied to all building *** has been concluded that the core location is the prime parameter governing the structural behavior of tall *** the first two cases(A,B)have acceptable and similar structural behaviors conforming to code limits,in the third case(C),the building behavior came beyond code *** author introduced remedial action by adding two secondary cores in the opposite direction of the main core(C-R)to restore the building behavior to the code *** results of this action were satisfactory.

关键词： Concrete tall buildings core eccentricity structural behavior gravity wind seismic loadings

Impact Assessment and mitigation Techniques for High Penetration Levels of Renewable Energy Sources in Distribution Networks:Voltage-control Perspective

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Journal of modern Power Systems and Clean Energy 2022年第2期10卷 450-458页

作者： Ahmed S.A.Awad Dave Turcotte tarek H.m.El-Fouly Natural Resources Canada Can-metENERGYVarennesCanadaon leave from the Electrical Power and Machines DepartmentFaculty of EngineeringAin Shams UniversityCairo 11566Egyp Natural Resources Canada CanmetENERGYVarennesCanada Advanced Power and Energy Center Khalifa UniversityAbu DhabiUnited Arab Emirates

The integration of renewable distributed generation(RDG)into distribution networks is promising and increasing ***,high penetration levels of distributed generation(DG)are often limited as they may have an adverse effect on the operation of distribution *** of the operation challenges is the interaction between DG and voltage-control equipment,e.g.,an under-load tap changer(ULTC),which is basically designed to compensate for voltage changes caused by slow load *** integration of variable DGs leads to rapid voltage fluctuations,which can negatively affect the tap operation of *** paper investigates the impact of high penetration levels of RDG on the tap operation of ULTC in distribution networks through *** mitigation techniques that can alleviate this impact are also *** these techniques,constant power-factor mode is regarded as the best trade-off between the simplicity and effectiveness of minimizing the number of tap *** are performed on a Canadian benchmark rural distribution feeder using OpenDSS software.

关键词： Renewable energy distributed generation(DG) voltage regulator load tap changer distribution network.

Development and experiment of the intelligent control system for rhizosphere temperature of aeroponic lettuce via the Internet of Things

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International Journal of Agricultural and Biological Engineering 2022年第3期15卷 225-233页

作者： tarek mahrous Korany mohamed Jianmin Gao mazhar Tunio School of Agricultural Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

Currently,in the conventional aeroponic system the collection of data for crop performance is quite slow,whereas such data are typically collected ***,the root zone temperature is one of the most important factors affecting plant growth in aeroponics *** study aimed to obtain temperature and relative humidity data inside an aeroponic system based on the Internet of things(IoT)and automatically cool the root zone using a novel low-cost effective technique for cooling via a cooling fan connected to the Arduino *** results revealed that the newly designed system could monitor and record the data in real-time on an internet server per ***,the temperature and humidity data can be displayed on the smartphone application,and be sent to the personal email weekly as an excel *** system was able to maintain the temperatures inside the roots chamber between 28.7℃-29.2℃ while the maximum external temperature was 38.1℃,and the average temperature in the traditional aeroponics system was fluctuating between 29.5℃-31.5℃.The newly automated cooling system root zone system of this study showed an optimization of lettuce growth *** significantly increased the lettuce absorbance of inorganic nutrients such as N,P,and K by 45.5%,66.6%,and 45.0%,respectively,also revealed an increment of fresh weight,total chlorophyll,ascorbic acid,total carbohydrate,and total amino acids by 131.0%,26.2%,41.9%,30.7%,6.2%,respectively in comparison with the conventional aeroponic ***,this study may play a significant role in the aeroponic monitoring and control,for providing more suitable growth parameters and achieving the least human interaction.

关键词： aeroponics IoT rhizosphere temperature lettuce intelligent control system

Eye Detection-Based Deep Belief Neural Networks and Speeded-Up Robust Feature Algorithm

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Computer Systems Science & Engineering 2023年第6期45卷 3195-3213页

作者： Zahraa tarek Samaa m.Shohieb Abdelghafar m.Elhady El-Sayed m.El-kenawy mahmoud Y.Shams Faculty of Computers and Information Mansoura UniversityMansoura35516Egypt Deanship of Scientific Research Umm Al-Qura UniversityMakkah21955KSA Delta Higher Institute of Engineering and Technology Mansoura35111Egypt Faculty of Artificial Intelligence Kafrelsheikh UniversityKafrelsheikh33511Egypt

The ability to detect and localize the human eye is critical for use in security applications and human identification and verification *** is because eye recognition algorithms have multiple challenges,such as multi-pose variations,ocular parts,and ***,the modern security applica-tions fail to detect facial expressions from eye *** this paper,a Speeded-Up Roust Feature(SURF)Algorithm was utilized to localize the face images of the enrolled *** highlighted on eye and pupil parts to be detected based on SURF,Hough Circle Transform(HCT),and Local Binary Pattern(LBP).Afterward,Deep Belief Neural Networks(DBNN)were used to classify the input features results from the SURF *** further determined the correctly and wrongly classified subjects using a confusion matrix with two class labels to classify people whose eye images are correctly *** apply Stochastic Gradient Descent(SGD)optimizer to address the overfitting problem,and the hyper-parameters arefine-tuned based on the applied *** accuracy of the proposed system is determined based on SURF,LBP,and DBNN classifier achieved 95.54%for the ORL dataset,94.07%for the BioID,and 96.20%for the CASIA-V5 *** proposed approach is more reliable and more advanced when compared with state-of-the-art algorithms.

关键词： Eye localization classification DBNN detection feature extraction LBP feature extraction SURF

Long-term changes in sea surface temperature(SST)within the southern Levantine Basin

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Acta Oceanologica Sinica 2021年第3期40卷 27-33页

作者： tarek m.El-Geziry Laboratory of Physical Oceanography Division of Marine EnvironmentNational Institute of Oceanography and Fisheries(NIOF)Alexandria21556Egypt

Knowledge of sea surface temperature(SST)behaviour is vital for long-term climate *** study highlights essential outcomes about the distinguishable and unsurprising warming of the SST along the southern border of the Levantine *** analysis is based on monthly SST data for the period *** southern Levantine Basin has undergone SST increase,during the last 71 *** this study,a consistent warming trend has been found for the analysed SST data series,with a rate of 0.04℃/a,i.e.,0.4℃/(10 a).From 1975 to 1991 the mean annual SST was 17.1℃,and this increased to be 19.2℃,over the period *** revealed two opposite trends of variability:a decreasing trend(−0.06℃/a)over the period 1975-1991,and an increasing trend(0.2℃/a)from 2002 to *** the period 1948-2018,positive mean annual SST anomalies had an average of 1.8℃,and negative anomalies had an average of−1.1℃.The lowest SST total increase was found from January to April,with values about 0.03℃,while the highest warming appeared from June to *** driving mechanisms behind the SST changes need to be more investigated,to understand the future trends and impacts of climate change in the Levantine Basin.

关键词： mediterranean Sea Levantine Basin sea surface temperature anomaly trends warming

Comparison of nutrient use efficiency,antioxidant assay,and nutritional quality of butter-head lettuce(Lactuca sativa L.)in five cultivation systems

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International Journal of Agricultural and Biological Engineering 2023年第1期16卷 95-103页

作者： mazhar H.Tunio Jianmin Gao tarek m.K.mohamed Fiaz Ahmad Irfan Abbas Sher Ali Shaikh School of Agricultural Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

A greenhouse experiment was conducted to evaluate the comparison of nutrient use efficiency,antioxidant assay,and nutritional quality of butter-head lettuce in five cultivation *** this experimental study,a split-boxes experimental arrangement in a completely randomized design(CRD)with three aeroponics systems(high pressure(T1),low pressure(T2),and ultrasonic nozzle(T3)),hydroponic system(T4),and conventional cultivation system(T5)was *** analyses of variance(ANOVA)were employed to assess yield,chlorophyll content,relative water content(RWC),nutrient use efficiency(NUE),2,2-Diphenyl-1-picrylhydrazyl(DDPH),Hydrogen Peroxide(H2O2),Ferric Reducing Antioxidant Power(FRAP),total phenolic(TPC),flavonoid content(TFC)and nutritional quality of butter-head *** experimental comparative results indicated that the shoot and root(fresh and dry)weight,root-to-shoot ratio,chlorophyll contents,CWC,NUE,DDPH,H 2O 2,FRAP,TPC,TFC,nitrate,vitamin C,and protein level were significantly(pment,and the values were significantly(pmentioned earlier,the median values of the above-mentioned parameters were measured in aeroponics systems with low-pressure nozzle(T 3).It also found a strong positive correlation(r>0.7)among the Shoot(FW),Chlorophyll,RWC,NUE,and among TPC,TFC,DDPH,H 2O 2,and *** study demonstrates that butter-head lettuce grown in aeroponics systems with high-pressure nozzles may serve as a potential dietary source and is rich in natural antioxidants.

关键词： aeroponics high-pressure nozzle phenolic content antioxidants lettuce