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HTolerance of Pima and Upland cotton to trifloxysulfuron (Envoke) herbicide under field conditions

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Journal of Cotton Research 2021年第4期4卷 299-307页

作者： ZHANG Jinfa abdelraheem abdelraheem WEDEGAERTNER Tom Department of Plant and Environmental Sciences New Mexico State Univer-sityLas CrucesNM 88003USA Cotton Incorporated CaryNCUSA

Trifloxysulfuron(Envoke)is an acetolactate synthase-inhibitor herbicide and can be used to control many broadleaf weeds and nutsedges in cotton ***,there is a lack of information on genotypic variation in response to the *** this field study,60 Pima(Gossypium barbadense L.)lines,122 Upland(*** L.)lines,and 9 Upland×Pima segregating populations were divided into five tests(18A,18B,18G,18RB,and 18HQ)to evaluate tri-floxysulfuron tolerance at the 7-true leaf stage(42 days after planting)under the same field conditions in *** the five tests,Pima cotton genotypes tested in this study did not show any visual crop injury based on percentage of plants with chlorosis at 6 days after treatment(DAT),indicating consistent and high levels of trifloxysulfuron ***,the response to trifloxysulfuron within Upland cotton is highly *** Upland cotton is overall more sensitive to trifloxysulfuron with crop injury up to 80%than Pima cotton,19 lines had injury below 5%including one line with no visual injury,and 19 lines had injury between 5%and 10%.In test 18HQ with 15 transgenic Upland cultivars and 17 non-transgenic Upland lines,the analysis of variance detected a significant genotypic *** broad-sense heritability estimates for trifloxysulfuron tolerance based on crop injury at 6 DAT was 0.555,suggesting that trifloxysulfuron tolerance in Upland cotton is moderately *** study represents the first report that Pima cotton and many Upland cotton lines are highly tolerant to trifloxysulfuron with no or little crop injury.

关键词： Upland cotton Pima cotton Glandless Trifloxysulfuron(Envoke) Herbicide tolerance

Magnetic impact on heat and mass transfer utilizing nonofluid in an annulus between a superellipse obstacle and a cavity with periodic side-wall temperature and concentration

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Communications in Theoretical Physics 2021年第11期73卷 1-17页

作者： abdelraheem M Aly Noura Alsedais Department of Mathematics King Khalid UniversityAbha 62529Saudi Arabia Department of Mathematics Faculty of ScienceSouth Valley UniversityQena 83523Egypt Department of Mathematical Sciences College of SciencePrincess Nourah Bint Abdulrahman UniversityRiyadhSaudi Arabia

The magnetic impacts upon the transport of heat and mass of an electrically conducting nanofluid within an annulus among an inner rhombus with convex and outer cavity with periodic temperature/concentration profiles on its left wall are assessed by the ISPH *** right wall has Tcand C,cflat walls are adiabatic,and the temperature and concentration of the left wall are altered sinusoidally with *** features of the heat and mass transfer and fluid flow through an annulus are assessed across a wide scale of Hartmann number Ha,Soret number Sr,oscillation amplitude A,Dufour number Du,nanoparticles parameterΦ,oscillation frequency f,Rayleigh number Ra,and radius of a superellipse a at Lewis number Le=20,magnetic field’s angle g=45°,Prandtl number Pr=6.2,a superellipse coefficient n=3/2,and buoyancy parameter N=*** results reveal that the velocity’s maximum reduces by 70.93%as Ha boosts from 0 to 50,and by 66.24%as coefficient a boosts from 0.1 to *** the velocity’s maximum augments by 83.04%as Sr increases from 0.6 to 2 plus a decrease in Du from 1 *** oscillation amplitude A,and frequency f are significantly affecting the nanofluid speed,and heat and mass transfer inside an *** the parameters A and f is augmenting the values of mean Nusselt number-(Sh)and mean Sherwood number^-(Nu).Increasing the radius of a superellipse a enhances the values of^(Nu)and^(Sh).

关键词： Dufour number ISPH method nanofluid Soret number rhombus magnetic field

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Water entry of decelerating spheres simulations using improved ISPH method

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Journal of Hydrodynamics 2018年第6期30卷 1120-1133页

作者： abdelraheem M.Aly Mitsuteru Asai Department of Mathematics Faculty of Science King Khalid University Department of Mathematics Faculty of Science South Valley University Department of Civil Engineering Kyushu University

In this paper, we simulated the vertical impact of spheres on a water surface using three-dimensional incompressible smoothed particle hydrodynamics(3-D ISPH) method. The sphere motion is taken to be a rigid body motion and it is modeled by ISPH method. The governing equations are discretized and solved numerically using ISPH method. A stabilized incompressible SPH method by relaxing the density invariance condition is adopted. Here, we computed the motions of a rigid body by direct integration of the fluid pressure at the position of each particle on the body surface. The equations of translational and rotational motion were integrated in time domain to update the position of the rigid body at each time step. In this study, we improved the boundary treatment between fluid and fixed solid boundary by using virtual marker technique. In addition, an improved algorithm based on the virtual marker technique for the boundary particles is proposed to treat the moving boundary of the rigid body motion. The force exerted on the moving rigid boundary particles by the surrounding particles, is calculated by the SPH approximation at the virtual marker points. The applicability and efficiency of the current ISPH method are tested by comparison with reference experimental results.

关键词： Incompressible smoothed particle hydrodynamics(ISPH) free surface flow sphere rigid body water entry

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Simulation of Water-Soil-Structure Interactions Using Incompressible Smoothed Particle Hydrodynamics

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Computers, Materials & Continua 2020年第10期65卷 205-224页

作者： abdelraheem M.Aly Mitsuteru Asai Ehab Mahmoud Mohamed Department of Mathematics College of ScienceKing Khalid UniversityAbha62529Saudi Arabia Department of Mathematics Faculty of ScienceSouth Valley UniversityQena83523Egypt Civil Engineering Department Kyushu UniversityFukuoka819-0395Japan Electrical Engineering Department College of EngineeringPrince Sattam Bin Abdulaziz UniversityWadi Addwasir11991Saudi Arabia Electrical Engineering Department Faculty of EngineeringAswan UniversityAswan81542Egypt

In the present work,an incompressible smoothed particle hydrodynamic(SPH)method is introduced to simulate water-soil-structure *** the current calculation,the water is modelled as a Newtonian *** soil is modelled in two different *** the first case,the granular material is considered as a fluid where a Bingham type constitutive model is proposed based on Mohr-Coulomb yield-stress criterion,and the viscosity is derived from the cohesion and friction *** addition,the fictitious suspension layers between water and soil depending on the concentration of soil are *** the second case,Hooke’s law introduces elastic *** ISPH,the pressure is evaluated by solving the pressure Poisson equation using a semi-implicit algorithm based on the projection method and an eddy viscosity for water is modelled by a large eddy simulation with the Smagorinsky *** the proposed ISPH method,the pressure is stabilized to simulate the multiphase flow between soil and *** experiments for water-soil suspension flow of Louvain erosional dam break with flat soil foundation,is simulated and validated using 3D-ISPH *** between water-soil interactions with different solid structures are *** results revealed that,the suspension layers with the Bingham model of soil gives more accurate results in the experiment as compared to the case of the Bingham model without suspension *** addition,the elastic soil model by the Hooke’s law can simulate soil hump accurately as compared to the Bingham *** the simulations,avoiding erosion behind the structure for preventing the structure break during flood are investigated by using an extended structure or a wedge structure.

关键词： Bingham model ISPH method rigid body water-soil interactions

Natural Convection in an H-Shaped Porous EnclosureFilled with a Nanofluid

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Computers, Materials & Continua 2021年第3期66卷 3233-3251页

作者： Zehba A.S.Raizah abdelraheem M.Aly Department of Mathematics College of ScienceKing Khalid UniversityAbha62529Saudi Arabia Department of Mathematics South Valley UniversityQena83523Egypt

This study simulates natural convection flow resulting from heat partitions in an H-shaped enclosure filled with a nanofluid using an incompressible smoothed particle hydrodynamics(ISPH)*** right area of the H-shaped enclosure is saturated with non-Darcy porous *** center variable partitions of the H-shaped enclosure walls are kept at a high-temperature *** left and right walls of the H-shaped enclosure are positioned at a low temperature Tc and the other walls are *** ISPH method,the source term in pressure Poisson equation(PPE)is *** influences of the controlling parameters on the temperature distributions,the velocity field and average Nusselt number are *** performed simulations proofed that the length of the heated partitions augments the velocity field and temperature distributions in an H-shaped *** number rises the fluid velocity and heat transfer in an H-shaped *** porous layer on the right side of the H-shaped enclosure at a lower Darcy parameter causes a high resistance force for the fluid flow and heat transfer characteristic inside an H-shaped *** nanoparticles reduces the velocity field and enhances the heat transfer inside an H-shaped enclosure.

关键词： H-shaped enclosure ISPH natural convection nanofluid porous medium

Nanofluid Flows Within Porous Enclosures Using Non-Linear Boussinesq Approximation

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Computers, Materials & Continua 2021年第3期66卷 3195-3213页

作者： Sameh E.Ahmed Dalal Alrowaili Ehab Mahmoud Mohamed abdelraheem M.Aly Department of Mathematics College of ScienceKing Khalid UniversityAbha62529Saudi Arabia Department of Mathematics South Valley UniversityQena83523Egypt Mathematics Department College of ScienceJouf UniversitySakakaSaudi Arabia Electrical Engineering Department College of EngineeringPrince Sattam Bin Abdulaziz UniversityWadi Addwasir11991Saudi Arabia Electrical Engineering Department Aswan UniversityAswan81542Egypt

In this paper,the Galerkin finite element method(FEM)together with the characteristic-based split(CBS)scheme are applied to study the case of the non-linear Boussinesq approximation within sinusoidal heating inclined enclosures filled with a non-Darcy porous media and *** enclosure has an inclination angle and its side-walls have varying sinusoidal temperature *** working fluid is a nanofluid that is consisting of water as a based nanofluid and Al2O3 as *** porous medium is modeled using the Brinkman Forchheimer extended Darcy *** obtained results are analyzed over wide ranges of the non-linear Boussinesq parameter 0≤ζ≤1,the phase deviation 00≤Φ≤1800,the inclination angle 00≤γ≤900,the nanoparticles volume fraction 0%≤φ≤4%,the amplitude ratio 0≤a≤1 and the Rayleigh number 104≤Ra≤*** results revealed that the average Nusselt number is enhanced by 0.73%,26.46%and 35.42%at Ra=104,105 and 106,respectively,when the non-linearBoussinesq parameter is varied from 0 to *** addition,rate of heat transfer in the case of a non-uniformly heating is higher than that of a uniformly ***-linear Boussinesq parameter rises the flow speed and heat transfer in an *** deviation makes clear changes on the isotherms and heat transfer rate on the right wall of an *** inclination angle varies the flow speed and it has a slight effect on heat transfer in an enclosure.

关键词： CBS scheme non-linear Boussinesq approximation nonuniformly heating non-darcy flow nanofluid

Immediate and delayed micro-tensile bond strength of different luting resin cements to different regional dentin

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The Journal of Biomedical Research 2013年第2期27卷 151-158页

作者： abdelraheem Mohamed Ali Ibrahim Mohamed Hamouda Mohamed Hamed Ghazy Manal Mohamed Abo-Madina Department of Conservative Dentistry Faculty of Dentistry Mansoura University Department of Dental Biomaterials Faculty of Dentistry Mansoura University Department of Conservative Dentistry Faculty of Dentistry Umm Al Qura University Crown & Bridge Department of Conservative Dentistry Faculty of Dentistry Mansoura University

We sought to evaluate immediate and delayed micro-tensile bond strength of Panavia F2.0 and Multilink Sprint resin cement to superficial, deep and cervical dentin. Thirty-six freshly extracted non-carious human molars were sectioned in the mesiodistal direction to expose three different dentin regions including superficial dentin （1 mm below the dentine-enamel junction）, deep dentin （1 mm above the highest pulp horn） and cervical dentin （0.5 mm above the cemento-enamel junction and 0.5 mm below the dentine-enamel junction）. Resin cements were applied on dentin surfaces and composite blocks were luted under constant seating pressure. Each group was divided into three subgroups according to time intervals. Specimens were sectioned to obtain sticks of 1 mm2 in diameter and subjected to microtensile bond strength testing at a cross head speed of 1 mrn/min. Both resin cements showed higher micro-tensile bond strength to superficial dentin than that to deep or cervical dentin （P 〈 0.001）. Micro-ten- sile bond strengths of Panavia F2.0 were higher than those of Multilink Sprint at different dentin regions （P 〈 0.001）. Immediate ＂micro-tensile bond strengths were higher than those of delayed micro-tensile bond strengths for both resin cements （P 〈 0.001）. It was concluded that resin cements with different chemical formulations and applications yield significantly different micro-tensile bond strengths to different dentin regions.

关键词： immediate and delayed micro-tensile bond strength luting resin cements regional dentin

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Effect of Feed Restriction on Broiler Chicks Prior to Slaughter

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Open Journal of Animal Sciences 2019年第1期9卷 12-22页

作者： Nadir abdelraheem Magdi Mohammed Mohammed Ahmed Fujiang Hou Department of Animal Production Faculty of Agriculture Red Sea University Portsudan Sudan Department of Animal Production Environment and Natural Resources and Desertification Research Institute National Center for Research Khartoum Sudan State Key Laboratory of Grassland Agro-Ecosystems College of Pastoral Agriculture Science and Technology Lanzhou University Lanzhou China Alsafar for Eggs Production Project Omdurman Sudan

The present study was conducted to study the effect of feed restriction prior to slaughter on carcass weight of male broiler chicks from 32 to 40 days of age. A total number of 180 (Pure line) male broiler chicks were taken randomly, labeled and divided into six groups. At 32 days of age, the experimental groups were put under the experimental feeding program. Group A fed ad libitum (control) while group B and C fed 120, 60 gm/bird/day for eight days, respectively. Group D and E fed 120, 60 gm/bird/day for four days respectively, followed by zero feeding for an extra 4 days. Group F deprived of food during the whole experimental period (8 days). The experimental diet was formulated to be approximately iso caloric-iso nitrogenous containing sorghum, groundnut cake, broiler concentrate, calcium, salt, lysine, methionine, and premix. The parameters taken were live body weight, feed intake, mortality, carcass, and non-carcass values. The effect of feed restriction program on male broiler chicks was not significant during the period from 32 to 34 days of age for parameters final live body weight, carcass weight, and dressing percentage, but net weight (gain or loss) was affected by feed restriction program and showed a significant difference (P < 0.01) between experimental groups. From 32 to 36 days of age male broilers subjected to feed restriction regimes showed the lowest reading for final live body weight, net weight (gain or loss) and carcass weight and the difference were significant (P 0.05) between experimental groups for dressing percentage during period from32 to 36 days of age. At the period from 32 to 38 days and the period from 32 to 40 days of age, all parameters were significantly affected by feed restriction program. It was concluded that carcass weight of broiler chickens can be controlled using different options of feed restriction programs according to the need of the market and the producer situation with special consideration to the economic return.

关键词： Feed Restriction Prior to Slaughter Broiler Carcass Weight

Combination of Diclofenac Potassium and Propolis in the Therapy of Oral Aphthosis: A Randomized, Clinical, Double-Blind, Placebo-Controlled Study

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Open Journal of Stomatology 2023年第11期13卷 422-432页

作者： Mohamed Ismail Assadawy Hisham Mohamed Abozaid abdelraheem Ramadan Elgendy Abdelrahman Mohamed Galal Department of Oral Medicine Periodontology Oral Diagnosis and Oral Radiology Faculty of Dental Medicine (Boys-Cairo) Al-Azhar University Cairo Egypt Department of Oral Biology Faculty of Dental Medicine (Boys-Cairo) Al-Azhar University Cairo Egypt

Background: Oral aphthosis has a negative impact on oral health. This study aimed to assess the effectiveness of gel formulation including diclofenac and propolis in the treatment of oral ulcers. Methods: Participants included 100 normal individuals with aphthous, excluding those having allergies to any ingredient in the diclofenac formulation. Patients were randomly assigned into two groups: one group received treatment with a combination of diclofenac potassium 3% (10 mg/g, 60 g) and propolis 5% gel (Group II), and the other group received a placebo (Group 1). The patient was evaluated using standard digital photographs and chronic oral mucosal questionnaires on days 1, 3, 5, and 7 after healing. Utilizing the Mann-Whitney U test, the two groups were compared. Each group’s changes were examined using Friedman’s test. Results: There was a statistically dramatic change over time in Group II. After one day, the median total score dropped statistically significantly, and from one to three days with effect size (d) 2.485, Group II demonstrated 48% complete healing and 52% partial healing, while Group I demonstrated 4% partial healing and 96% no change. Effect size (V): 0.995. Conclusions: The combination of diclofenac and propolis provided instant relief and an affordable new regimen for treating oral aphthosis.

关键词： Ulcer Biology Healing Inflammation Corticosteroids Propolis Diclofenac Potassium Oral Aphthosis