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BOD Composite as a New Eco-Friendly Corrosion Inhibitor

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材料科学与工程（中英文B版） 2020年第1期10卷 18-33页

作者： A.m.Eldesoky A.Attia Omayma E.Ahmed m.abo-elsoud Engineering Chemistry Department High Institute of Engineering&TechnologyNew Damietta 34517Egypt Chemistry Department Mansoura UniversityFaculty of ScienceMansoura 35516Egypt Evaluation and Analytical Department Egyptian Petroleum Research Institute Nasr CityCairo 11717Egypt Physics Department Umm Al-Qura UniversityAl-Qunfudhah University CollegeAl-Qunfudhah 21912Saudi Arabia Chemistry Department Umm Al-Qura UniversityAl-Qunfudhah University CollegeAl-Qunfudhah 21912Saudi Arabia Chemistry Department Najran UniversityFaculty of Science and ArtsNajran 21497Saudi Arabia

BOD composite,(E)-4-(2-(benzo[d]oxazol-2-yl)vinyl)-N,N-dimethylaniline is a new eco-friendly corrosion inhibitor versus P355 Carbon Steel(Cs).BOD was examined in 1.0 N HCl corrosive solution utilizing TP,EIS and EFm *** curves show that adsorption of BOD increases the transfer resistance and decrease the capacitance of interface metal/*** docking was utilized to predict the binding between BOD composite with the receptor of 3tt8-hormone of crystal structure analysis of Cu Human Insulin *** morphology of inhibited P355 Cs was analyzed by checking electron magnifying instrument innovation with energy dispersive X-beam spectroscopy(SEm EDX).

关键词： BOD eco-friendly P355 Cs SEm EDX molecular docking

Linearly and Quadratically Separable Classifiers Using Adaptive Approach

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Journal of Computer Science & Technology 2011年第5期26卷 908-918页

作者： mohamed Abdel-Kawy mohamed Ali Soliman Rasha m.abo-Bakr Department of Computer and Systems Engineering Faculty of EngineeringZagazig UniversityZagazigEgypt Departement of mathematics Faculty of ScienceZagazig UniversityZagazigEgypt

This paper presents a fast adaptive iterative algorithm to solve linearly separable classification problems in R *** each iteration,a subset of the sampling data （n-points,where n is the number of features） is adaptively chosen and a hyperplane is constructed such that it separates the chosen n-points at a margin and best classifies the remaining *** classification problem is formulated and the details of the algorithm are ***,the algorithm is extended to solving quadratically separable classification *** basic idea is based on mapping the physical space to another larger one where the problem becomes linearly *** illustrations show that few iteration steps are sufficient for convergence when classes are linearly *** nonlinearly separable data,given a specified maximum number of iteration steps,the algorithm returns the best hyperplane that minimizes the number of misclassified points occurring through these *** with other machine learning algorithms on practical and benchmark datasets are also presented,showing the performance of the proposed algorithm.

关键词： linear classification quadratic classification iterative approach adaptive technique

Tier-based approach to establish a culture of biosafety at a medical microbiology research laboratory in Egypt

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Journal of Biosafety and Biosecurity 2022年第1期4卷 17-22页

作者： mona El-Shokry Nesma Hamdi Shimaa Abdel Salam Nagwa m.abo El magd medical microbiology and Immunology Department Faculty of Medicine-Ain Shams UniversityEgypt

microbiology Research Laboratory(mRL)is a biosafety level-2(BSL-2)research laboratory located at the main campus of Faculty of medicine,Ain Shams University(ASU)in *** the objective of strengthening the departmental capacities of biosafety,a series of activities were carried out between October 2019,and January 2020 to raise awareness,along with instilling standard biosafety practices and procedures among laboratory staff including non-health *** staff were categorized according to their biosafety knowledge into three tiers:tier(1):with zero to minimal knowledge,tier(2):with basic knowledge,tier(3):with satisfactory *** based activities were designed to align with their job ***:44 selected laboratory staff were trained on biosafety practices:12 from tier(1),19 from tier(2)and 13 constituted tier(3).Through regular follow-ups,the impact of the implemnted training plan was reflected on the practices and knowledge of all laboratory *** among health professions has increased by 60%.Furthermore,6 staff members have granted a biosafety certification by International Federation of Biosafety Association(IFBSA).Conclusion:establishing a culture of biosafety within microbiology research laboratories is integral to safe research *** with developing local and national biosafety regulations and policies will ensure research advancement without compromising public health or environmental safety.

关键词： Biosafety Research laboratories Tier-based activities Egypt Laboratory acquired infections microbiology

Engineering hierarchical heterostructure material based on metal-organic frameworks and cotton fiber for high-efficient microwave absorber

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Nano Research 2022年第8期15卷 6841-6850页

作者： Yan Guo Hu Liu Dedong Wang Zeinhom m.El-Bahy Jalal T.Althakafy Hala m.abo-Dief Zhanhu Guo Ben Bin Xu Chuntai Liu Changyu Shen Key Laboratory of materials Processing and mold(Zhengzhou University) Ministry of EducationNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002China Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt Department of Chemistry Faculty of Applied ScienceUmm Al-Qura UniversityMecca 21955Saudi Arabia Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Integrated Composites Laboratory(ICL) Department of Chemical&Biomolecular EngineeringUniversity of TennesseeKnoxvilleTN 37996USA Department of mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle upon TyneNE18STUK

Rational construction of hierarchical multi-component materials with abundant heterostructure is evolving as a promising strategy to achieve excellent metal-organic frameworks(mOFs)based electromagnetic wave(EmW)***,hierarchical heterostructure WS_(2)/CoS_(2)@carbonized cotton fiber(CCF)was fabricated using the ZIF-67 mOFs nanosheets anchored cotton fiber(ZIF-67@CF)as a precursor through the tungsten etching,sulfurization,and carbonization *** from the synergetic effect of dielectric-magnetic dual-loss mechanism,the hierarchical heterostructure and multicomponent of WS_(2)/CoS_(2)@CCF also display improved impedance ***,numerous W-S-Co bands and heterojunction interfaces of heterogeneous WS_(2)/CoS_(2)are beneficial to promoting additional interfacial/dipole polarization loss and conductive loss,thereby enhancing the EmW attenuation *** on the percolation theory,a good balance between impedance matching and EmW absorption capacity was achieved for the WS_(2)/CoS_(2)@CCF/paraffin composite with 20 wt.%filler loading,exhibiting strong EmW absorption capability with a minimum reflection loss(RLmin)value of−51.26 dB at 17.36 GHz with 2 mm thickness and a maximum effective absorption bandwidth(EABmax)as wide as 6.72 *** research will provide new guidance for designing high-efficient mOFs derived EmW absorbers.

关键词： hierarchical heterostructure sulfurization metal-organic framework microwave absorber

Internal fixator vs external fixator in the management of unstable pelvic ring injuries:A prospective comparative cohort study

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World Journal of Orthopedics 2023年第7期14卷 562-571页

作者： mohamed abo-elsoud mostafa I Awad mahmoud Abdel Karim Sherif Khaled mohamed Abdelmoneim Department of Orthopedics and Traumatology Cairo University HospitalsCairo 11562Egypt Department of Trauma and Orthopedics Mataria Teaching HospitalCairo 4540046Egypt

BACKGROUND Reconstruction of the pelvic ring anatomy in unstable anterior pelvic ring injuries is a significant step to reduce the mortality rate associated with these injuries *** is a debate on using either an anterior subcutaneous pelvis internal fixator(INFIX)or an anterior supra-acetabular external fixator(EXFIX)to manage an unstable anterior pelvic ring *** To compare the functional and radiological outcomes and complications of INFIX vs EXFIX in managing unstable pelvic ring *** A prospective cohort study included 54 patients with unstable pelvic ring *** patients were divided into two groups;the INFIX group,in which 30 cases were fixed by INFIX,and the EXFIX group,in which 24 patients were treated by *** average age in the EXFIX group was 31.17 years(16-57 years),while in the INFIX group,it was 34.5 years(17-53 years).The study included 20(66.7%)males and 10(33.3%)females in the INFIX group and 10(41.7%)males and 14(58.3%)females in the EXFIX *** radiological outcomes were evaluated using matta and Tornetta's score,and the functional outcomes using the majeed *** The results revealed a statistically significant difference between both groups(P=0.013)regarding radiological outcomes,according to matta and Tornetta's score in favor of the INFIX ***,standing,and walking abilities were measured at a 3-mo follow-up visit using majeed score *** was significantly better among the INFIX group than the EXFIX group in all three *** the final follow-up,both groups had no statistically significant difference according to the majeed score;92.35 in the INFIX group and 90.99 in the EXFIX group(P=0.513).A lower surgical site infection rate was noticed in the INFIX group(P=0.007).CONCLUSION Anterior subcutaneous pelvis INFIX is associated with better radiological outcomes and a lower infection rate than anterior supra-acetabular EXFIX in managing patients with unstable anterior pelvic

关键词： Internal fixator External fixator Unstable Anterior Pelvic Injuries

Influence of the Thermal Treatments on the Structural Relaxation in a metallic Glass Al80Fe8mo7TNi5

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材料科学与工程（中英文A版） 2013年第4期3卷 256-262页

作者： mohamed abo-elsoud Awad AI-Rashdi materials Science Laboratory Physics Department College of University Al Gunfuda Umm AI Qura University Saudi Arabia Chemistry Department College of University AI Gunfuda Umm Al Qura University Saudi Arabia

Perfluorosulfonic acid proton exchange membrane with double proton site side chain for high-performance fuel cells at low humidity

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Journal of materials Science & Technology 2023年第35期166卷 155-163页

作者： Hongyun Tan Shengqiu Zhao S.Eltahir Ali Shuhong Zheng Abdullah K.Alanazi Rui Wang Haining Zhang Hala m.abo-Dief Ben Bin Xu Hassan Algadi Handong Li Priyanka Wasnik Zhanhu Guo Haolin Tang State Key Laboratory of Advanced Technology for materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Science and Technology University College-RanyahTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200China Integrated Composites Laboratory(ICL) Mechanical and Construction EngineeringNorthumbria UniversityNewcastle Upon Tyne NE18STUK College of materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Department of Electrical Engineering Faculty of EngineeringNajran UniversityNajran11001Saudi Arabia

Structural optimization of ionomers is an effective strategy for achieving high-performance proton ex-change membranes(PEms)under low relative humidity(RH)*** this study,sulfonimide group and trifluoromethanesulfonate acid(TFSA)ionic liquids were introduced to the perfluorosulfonic acid(PFSA)side chain,resulting in polymer membranes with varying chain lengths(i.e.,PFC_(2)-TF-SI,PFC_(4)-TF-SI,and PFC_(5)-TF-SI).This dual proton-conducting structure extended the length of the hydrophilic side chain and enhanced the hydrophobic-hydrophilic phase separation,aiding in the formation of proton transport ***,the proton conductivity of PFC_(5)-TF-SI and PFC_(2)-TF-SI membranes reached 7.1 and 10.6 mS/cm at 30%RH and 80℃,respectively,which were approximately 29.1%and 92.7%higher than that of the pristine PFC_(5)-SA membrane(5.5 mS/cm).Furthermore,the maximum power density of the PFC_(5)-TF-SI and PFC_(2)-TF-SI membranes from the built single fuel cell achieved 649 and 763 mW/cm^(2) at 30%RH and 80℃,respectively,which were higher than that of the pristine PFC_(5)-SA membrane(567 mW/cm^(2))by about 14.5%and 34.6%,***,this study provides a strategy for PEm design under low RH conditions.

关键词： Proton exchange membrane Structural design Dual proton conduction Hydrophilic channel Proton conductivity Fuel cells

Effects of rotation and gravity on an electro-magneto-thermoelastic medium with diffusion and voids by using the Lord-Shulman and dual-phase-lag models

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Applied mathematics and mechanics(English Edition) 2019年第8期40卷 1135-1154页

作者： S.m.abo-DAHAB A.m.ABD-ALLA A.A.KILANY Department of mathematics Faculty of SciencesTaif UniversityTaif 888Saudi Arabia Department of mathematics Faculty of ScienceSouth Valley UniversityQena 83523Egypt Department of mathematics Faculty of ScienceSohag UniversitySohag 82524Egypt

The effects of rotation and gravity on an electro-magneto-thermoelastic medium with diffusion and voids in a generalized thermoplastic half-space are studied by using the Lord-Shulman (L-S) model and the dual-phase-lag (DPL) model. The analytical solutions for the displacements, stresses, temperature, diffusion concentration, and volume fraction field with different values of the magnetic field, the rotation, the gravity, and the initial stress are obtained and portrayed graphically. The results indicate that the effects of gravity, rotation, voids, diffusion, initial stress, and electromagnetic field are very pronounced on the physical properties of the material.

关键词： electromagnetic field gravity field rotation initial stress voids diffusion normal mode analysis Lord-Shulman (L-S) model dual-phase-lag (DPL) model

Effect of magnetic field on poroelastic bone model for internal remodeling

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Applied mathematics and mechanics(English Edition) 2013年第7期34卷 889-906页

作者： A.m.ABD-ALLA S.m.abo-DAHAB Department of mathematics Faculty of Sciences Taif University Department of mathematics Faculty of Science Sohag University Department of mathematics Faculty of Science South Valley University

This paper studies the effects of the magnetic field and the porosity on a poroelastic bone model for internal remodeling. The solution of the internal bone remodeling process induced by a magnetic field is presented. The bone is treated as a poroelastic material by Biot＇s formulation. Based on the theory of small strain adaptive elasticity, a theoretical approach for the internal remodeling is proposed. The components of the stresses, the displacements, and the rate of internal remodeling are obtained in analytical forms, and the numerical results are represented graphically. The results indicate that the effects of the magnetic field and the porosity on the rate of internal remodeling in bone are very pronounced.

关键词： wave propagation poroelastic wet bone internal remodeling magnetic field