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Effectiveness of biofertilizers foliar application on yield and quality traits of flax(Linum usitatissimum L.)

Oil Crop Science 2024年第2期9卷 91-101页

作者： Saied El Sayed A.B.Bakry O.A.Nofal m.a.abo horish Plant Nutrition Department National Research Centre33 El-Behouth St12622DokkiCairoEgypt Field Crops Department National Research Centre33 El-Behouth St12622DokkiCairoEgypt

Flax is considered to be one of the most significant dual-purpose crops for oil and fiber production in Egypt and *** have a substantial impact on various metabolic processes,including increased photo-synthesis,endogenous hormone levels,ion absorption,nucleic acid synthesis,and protein *** factors collectively contribute to the growth and development of ***,this study aims to investigate how three biofertilizers(Algae extract,CmS as a by-product of yeast,and metalosate multi minerals as amino acids)can enhance both the quantity and quality of flax seed yield under sandy soil *** field experiments were conducted at the Experimental Station of National Research Centre in Nubaria District,Behira Governorate,Egypt during two seasons(2021/2022)using a randomized complete block design(RCBD).The results revealed significant differences among all tested biofertilizers in terms of various characteristics studied in *** application of algae extract at a rate of 1.50 mL/L resulted in an increase in seed yield(ton/ha)by 26.69%&19.89%,straw yield(ton/ha)by 8.08%&17.12%,and oil yield(kg/ha)by 47.72%&33.69%compared to the control group during both seasons *** applications of algae extract at a rate of 1.50 mL/L along with CmS at a rate of 5 m L/L and amino acids at a rate of 1.50 mL/L demonstrated significantly higher macronutrient contents(N,P,K),micronutrient contents(Fe,Zn,mn),seed oil content,and protein content in flax seeds during both *** highest values for seed oil content and protein content%were obtained through foliar application of amino acids at a rate of 1.50 mL/*** can be concluded that foliar sprays with these bio-fertilizers effectively improved flax performance by increasing seed straw and oil yields,nutrients oil,protein and fatty acids seeds contents.

关键词： Flax Bio fertilizers Seeds yield Nutrient contents Quality

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Kinetics and Nanostructure Dependence of High Temperature-Low Stress Creep of Al and Al-0.3%Fe

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Journal of materials Science & Technology 2012年第1期28卷 27-33页

作者： m.abo-Elsoud mater.Sci.Lab. Physics DepartmentFaculty of ScienceBeni-SuefEgypt Physics Department College of GirlsAl GunfethaUmm Al Qura UniversityKingdom of Saudi Arabia

The novel nanostructure of AI and AI-Fe were prepared by ball milling alumina with elemental Fe. The kinetics and nanostructure dependence of high temperature low stress Newtonian creep of AI and AI-0.3%Fe have been investigated and compared with the predications of the Nabarro-Herring （N-H） theory of directional diffusion. A simple theory based on the climb controlled generation of dislocations from a fixed density of sources is developed to explain the observed behavior. The dislocation density increases and subgrains form during the creep. Also, the presence of precipitates of FeAI3 reduces the creep rate of AI by absolute faster of 100 at the same stress and temperature, in spite of the fact that the grain size in the AI-0.3%Fe alloy is smaller by a factor of about 100 nm. The reduction of grain size to the nanometer scale improves their mechanical properties. Electron diffraction methods combined with transmission electron microscopy （TEm） and scanning electron microscopy （SEm） studies are a convenient and powerful technique for the characterization of the phases and grain structure of the resulting materials.

关键词： Ball milling Nanostructure Creep

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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

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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

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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

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male Breast Cancer:10-Year Experience at mansoura University Hospital in Egypt

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Clinical oncology and cancer researeh 2012年第1期9卷 23-28页

作者： Wafaa El-Beshbeshi Engy m abo-Elnaga Department of Clinical Oncology and Nuclear medicine Faculty of MedicineMansoura University

Objective male breast cancer （mBC） is a rare disease representing less than 1% of all malignancies. The objective of the study is to report clinicopathological characteristics, treatment patterns, and outcomes of mBC in mansoura University Hospital, Egypt. methods This retrospective study focused on male breast cancer patients during 10 years （2000-2009）. The studied variables were data regarding general characteristics of patients, treatment modalities and survival. Results The series included 37 patients （0.8% of all breast cancer）. The median age was 57.7 years （range： 26-86 years）. The main clinical complaint was a mass beneath the areola ill 94.5% of the cases. most patients had a locally advanced disease. 94.5% of tumors were invasive duct carcinomas. The treatment was essentially surgery in 91.8%, followed by adjuvant radiotherapy （in 89.2%）, hormonal therapy （in 56.7%） and chemotherapy （in 91.8%）. Follow-up period ranged from 6-115 months. Local recurrence occurred in 4 cases and metastasis in 11 cases. The 2-year and 5-year overall survival （OS） rates were 81.6% and 60.5%, respectively. The 2-year and 5-year disease-free survival （DFS） rates were 68.4%, and 52.6%, respectively. OS was not significantly affected by any of the studied parameters. Factors influencing DFS were： T stage （P=0.05）, positive lymph nodes （P=0.043）, metastasis （P=0.004）, and chemotherapy （1＇=0.046）. Conclusions mBC is a rare disease and often diagnosed at a locally advanced stage. The management of male and female breast carcinoma is identical. Future research for better understanding of this disease is needed to improve the management and prognosis of male breast cancer patients.

关键词： breast neoplasms male therapeutics Egypt

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Rotational Effect on the Propagation of Waves in a magneto-micropolar Thermoelastic medium

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Computers, materials & Continua 2021年第10期69卷 205-220页

作者： A.m.Abd-Alla S.m.abo-Dahab m.A.Abdelhafez A.m.Farhan Department of mathematics Faculty of ScienceSohag UniversitySohagEgypt Department of mathematics Faculty of ScienceSouth Valley University83523Egypt Department of Physics Faculty of ScienceJazan UniversityJazanSaudi Arabia Department of Physics Faculty of ScienceZagazig UniversityZagazigEgypt

The present paper aims to explore how the magnetic field,ramp parameter,and rotation affect a generalized micropolar thermoelastic medium that is standardized isotropic within the *** employing normal mode analysis and Lame’s potential theory,the authors could express analytically the components of displacement,stress,couple stress,and temperature field in the physical *** calculated such manners of expression numerically and plotted the matching graphs to highlight and make comparisons with theoretical *** highlights of the paper cover the impacts of various parameters on the rotating micropolar thermoelastic ***,the non-dimensional temperature is not affected by the rotation and the magnetic *** attention is paid to studying the impact of the magnetic field,rotation,and ramp parameter of the distribution of temperature,displacement,stress,and couple *** study highlighted the significant impact of the rotation,magnetic field,and ramp parameter on the micropolar thermoelastic *** conclusion,graphical presentations were provided to evaluate the impacts of different parameters on the propagation of plane waves in thermoelastic media of different *** study may help the designers and engineers develop a structural control system in several applied fields.

关键词： magnetic field micropolar thermoelastic rotation ramp parameter normal mode analysis

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Reflection of PlaneWaves from Electro-magneto-thermoelastic Half-space with a Dual-Phase-Lag model

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Computers, materials & Continua 2016年第2期51卷 63-79页

作者： A.m.Abd-Alla mohamed I.A.Othman S.m.abo-Dahab math.Dept. Faculty of ScienceTaif University 888Saudi Arabia Department of mathematics Faculty of ScienceSohag UniversityEgypt math.Dept. Faculty of ScienceZagazig UniversityP.O.Box 44519ZagazigEgypt math.Dept. Faculty of ScienceSouth Valley UniversityQena 83523Egypt

The aim of this paper is to study the reflection of plane harmonic waves from a semi-infinite elastic solid under the effect of magnetic field in a *** expressions for the reflection coefficients,which are the relations of the amplitudes of the reflected waves to the amplitude of the incident waves,are ***,the reflection coefficient ratio variations with the angle of incident under different conditions are shown *** are made with the results predicted by the dual-phase-lag model and Lord-Shulman theory in the presence and absence of magnetic field.

关键词： Reflection Generalized thermoelasticity magnetic field Dual-phaselag model

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Electromagnetic field in fiber-reinforced micropolar thermoelastic medium using four models

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Journal of Ocean Engineering and Science 2020年第3期5卷 230-248页

作者： S.m.abo-Dahab A.m.Abd-Alla A.A.Kilany Dept.of mathematics Faculty of ScienceTaif University 888Saudi Arabia Dept.of mathematics Faculty of ScienceSohag UniversityEgypt Dept.of mathematics Faculty of ScienceSVUQena 83523Egypt

This paper aimed to study the effect of electromagnetic field on general model of the equations of the generalized thermoelasticity reinforcement of the deformation of a micropolar generalized thermoelastic *** phenomenon is in the context of the couple theory(C-D),Lord-Shulman(L-S)and Green-Lindsay(G-L)as well as the Dual-Phase-Lag(DPL)*** normal mode technique is used to find the exact expressions components of displacement,force stress,and *** modifications of the considered variables with the horizontal distance are illustrated graphically to show the distance values that reduce to the variables *** are made with the results in the absence and presence of electromagnetic field for the general of reinforcement on the total deformation of a micropolar thermoelastic *** results obtained are calculated numerically and displayed by the graphs to show the effect of the entered new parameters on the phenomena.

关键词： Electro-magneto-thermoelasticity micropolar Fiber-reinforced Lord-Shulman Green-Lindsay Dual-phase-lag

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Effects of rotation and magnetic field on the nonlinear peristaltic flow of a second-order fluid in an asymmetric channel through a porous medium

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Chinese Physics B 2013年第7期22卷 303-313页

作者： A. m. Abd-Alla S. m. abo-Dahab H. D. El-Shahrany Department of mathematics Faculty of ScienceTaif University Department of mathematics Faculty of Science Department of mathematics Faculty of ScienceSouth Valley University

In this paper, the effects of both rotation and magnetic field of the peristaltic transport of a second-order fluid through a porous medium in a channel are studied analytically and computed numerically. The material is represented by the constitutive equations for a second-order fluid. Closed-form solutions under the consideration of long wavelength and low Reynolds number is presented. The analytical expressions for the pressure gradient, pressure rise, friction force, stream function, shear stress, and velocity are obtained in the physical domain. The effects of the non-dimensional wave amplitude, porosity, magnetic field, rotation, and the dimensionless time-mean flow in the wave frame are analyzed theoretically and computed numerically. Numerical results are given and illustrated graphically in each case considered. Comparison was made with the results obtained in the presence and absence of rotation, magnetic field, and porosity. The results indicate that the effects of the non-dimensional wave amplitude, porosity, magnetic field, rotation, and the dimensionless time-mean flow are very pronounced in the phenomena.

关键词： peristaltic flow second-order fluid magnetic field porous medium

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