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Effects of residue management and nitrogen fertilizer rates on accumulation of soil residual nitrate and wheat yield under no-tillage system in south-west of Iran

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International Soil and Water Conservation Research 2021年第1期9卷 116-126页

作者： majid Roozbeh majid rajaie Agricultural Engineering Research Department Darab Agricultural Research StationFars Agricultural and Natural Resources Research and Education CenterAREEOIran Soil and Water Research Department Darab Agricultural Research StationFars Agricultural and Natural Resources Research and Education CenterAREEOIran

Conservation tillage,residue management and optimizing nitrogen(N)fertilization are important stra-tegies for soil and water conservation and sustainability of agricultural *** order to evaluate the effects of various residue management methods and N fertilizer rates on some soil quality indicators,accumulation of residual soil nitrate,and wheat yield under no till system,a split-plot experiment was arranged in a randomized complete block design with three *** plots were three residue management methods,including retaining(R.M1),removing(R.M2)and shredding(R.M3)of corn *** subplots consisted of four N fertilizer rates,100(N1),150(N2),200(N3),and 250(N4)kg N ha^(-1) from urea *** results showed that soil organic carbon and total N in R.M1 and R.M3 treatments increased at the depth of 0-15 cm as compared to *** maximum accumulation of soil nitrate was observed in R.M1 x N4 and R.M3 x N4 interactions at the soil depth of *** results of this study showed that R.M1 x N3 and R.M3 x N3 interactions had a greater impact on wheat yield than the sole effect of R.M1 or *** to our findings,application of 200 kg N ha^(-1) in combination with R.M1 which had once less tractor passing for mechanical shredding than R.M3,can contribute effectively to improve soil quality indicators,control soil residual nitrate and subsequently produce more wheat grain yield in the south-west of Iran.

关键词： No-tillage Corn residue Total nitrogen Nitrate accumulation Organic carbon

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Vagus nerve stimulation in intracerebral hemorrhage:the need for further research

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Neural Regeneration Research 2025年第11期20卷 3213-3214页

作者： Sheharyar S.Baig Ali N.Ali Arshad majid Sheffield Institute for Translational Neuroscience Division of NeuroscienceThe University of SheffieldSheffieldUK

Vagus nerve stimulation(VNS)and stroke:Stroke is the second leading cause of death and the third leading cause of disability worldwide(Baig et al.,2023).There have been significant paradigm shifts in the management of acute ischemic stroke through mechanical *** chronic ischemic stroke,invasive VNS paired with rehabilitation is associated with a significant increase in upper limb motor recovery and is FDA-approved(Baig et al.,2023).There are no treatments of similar efficacy in acute intracerebral hemorrhage(ICH)where several promising trials,e.g.,TICH-2,STOP-AUST,and TRAIGE did not show improvements in functional outcomes(Puy et al.,2023).

关键词： stimulation acute

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Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic studies

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Frontiers of Chemical Science and Engineering 2020年第4期14卷 673-687页

作者： majid Peyravi Department of Chemical Engineering Babol Noshirvani University of TechnologyBabolIran

Adsorptive polyethesulfone(PES)membranes were prepared by intercalation of powder activated carbon(PAC)with and without ***,PAC was aminated with 1,5-diamino-2-methylpentane,and the physicochemical properties of the functionalized PAC were *** of PAC within the PES scaffold changed the porosity and mean pore size of the aminated membrane(AC-NH2)from 52.6%to 92.5%and from 22.6 nm to 3.5 nm,*** effect of temperature on the performance of the modified mem-branes was monitored by the flux and chemical oxygen demand(COD)removal of *** ambient tempera-ture,the COD removal of the neat,AC-containing,and AC-NH2 membranes was 47%,52%,and 58.5%,respec-tively.A similar increment was obtained for the membrane flux,which was due to the synergistic effect of the high porosity and large number of hydrophilic functional *** experimental leachate adsorption data were analyzed by Langmuir,Freundlich,and Dubinin-Radushkevich isotherm *** all membranes,the significant thermodynamic parameters(ΔH,ΔS,and ΔG)were calculated and *** isosteric heat of adsorption was lower than 80 kJ·mol^-1,indicating that the interaction between the membranes and the leachate is mainly physical,involving weak van der Waals forces.

关键词： amine functionality nanoporous membrane adsorption isotherm thermodynamic parameters landfill leachate

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Performance Analysis of a Markovian Queue with Impatient Customers and Working Vacation

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Journal of the Operations Research Society of China 2023年第1期11卷 133-156页

作者： Shakir majid Department of Mathematics University of LadakhLeh CampusLeh194101India

In this paper,we consider the impatient customers in M/M/1 queueing model under variant working vacation *** customer’s impatience is due to its arrival during a working vacation period,where the service rate of the customer is lower than a normal busy *** the system is non-empty when the server returns from the working vacation,the server resumes the normal service ***,the server will take successive working vacations till it reaches the maximum number of K working vacations and then the server remains idle until the next ***-form probabilities are obtained by using the identities involving beta functions and degenerate hypergeometric functions,and the performance measures of the system are derived using generating *** stochastic decomposition structures of the mean queue length and mean waiting time are *** effects of the system parameters on some performance measures had been numerically illustrated.

关键词： Markovian queue Variant working vacations Probability generating function

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Effect of Orbital Characteristic of Inclined Third-body on Motion of Secondary-body for a Hierarchical Triple Systems

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Research in Astronomy and Astrophysics 2023年第6期23卷 1-11页

作者： majid Bakhtiari Assistant Professor School of Advanced TechnologiesIran University of Science and TechnologyNarmakTehran 16844Iran

The influence of a third-body's orbital elements on the second-body's motion in a hierarchical triple system is a crucial problem in *** prolonged evaluation studies have focused on a distant zero-inclined *** study presents a new perspective on second-body motion equations that addresses a perturbing-body in an elliptic orbit derived with consideration of the axial-tilt(obliquity)of the *** proposed model is compared by the dual-averaged method and the N-body problem *** validation,a generalized threebody model is derived to investigate the effects of the third-body's orbital elements on secondary-body motion *** proposed model considers short-time oscillations that affect secular evaluation and applies to exoplanets with all the primary and third body eccentricities,inclinations,and mass *** is shown that the obliquity of the primary(or third-body's inclination)must be considered for precise long-term assessment,even in highly-hierarchical systems.

关键词： celestial mechanics planets and satellites:dynamical evolution and stability Planetary Systems gravitation

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Performance assessment of a spiral methanol to hydrogen fuel processor for fuel cell applications

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Journal of Natural Gas Chemistry 2012年第5期21卷 526-533页

作者： Foad Mehri majid Taghizadeh Chemical Engineering Department Babol University of TechnologyP.O.Box 484*** BabolIran

A novel design of plate-type microchannel reactor has been developed for fuel cell-grade hydrogen *** Cu/Zn/Al2O3 was used as catalyst for the reforming reaction,and its effectiveness was evaluated on the mole fraction of products,methanol conversion,hydrogen yield and the amount of carbon monoxide under various operating ***,0.5 wt% Ru/Al2O3 as methanation catalyst was prepared by impregnation method and coupled with MSR step to evaluate the capability of methanol processor for CO *** on the experimental results,the optimum conditions were obtained as feed flow rate of 5mL/h and temperature of 250℃,leading to a low CO selectivity and high H2 *** designed reformer with catalyst coated layer was compared with the conventional packed bed reformer at the same operating *** constructed fuel processor had a good performance and excellent capability for on-board hydrogen production.

关键词： spiral fuel processor hydrogen fuel cell methanol steam reforming

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Energy behavior of Boris algorithm

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Chinese Physics B 2021年第5期30卷 492-498页

作者： Abdullah Zafar majid Khan Department of Engineering and Applied Physics University of Science and Technology of ChinaHefei 230026China Department of Physics Quaid-i-Azam UniversityIslamabad 45320Pakistan

Boris numerical scheme due to its long-time stability,accuracy and conservative properties has been widely applied in many studies of magnetized *** algorithms conserve the phase space volume and hence provide accurate charge particle ***,this algorithm does not conserve the energy in some special electromagnetic configurations,particularly for long simulation ***,we empirically analyze the energy behavior of Boris algorithm by applying it to a 2D autonomous *** energy behavior of the Boris method is found to be strongly related to the integrability of our Hamiltonian *** find that if the invariant tori is preserved under Boris discretization,the energy error can be bounded for an exponentially long time,otherwise the said error will show a linear *** the contrary,for a non-integrable Hamiltonian system,a random walk pattern has been observed in the energy error.

关键词： Boris algorithm invariant tori chaotic system Hénon-Heiles potential

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Simulation of proppant transport at intersection of hydraulic fracture and natural fracture of wellbores using CFD-DEM

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Particuology 2022年第4期20卷 112-124页

作者： Siamak Akhshik majid Rajabi Department of Mechanical Engineering Sharif University of TechnologyIran Sustainable Manufacturing Research Laboratory School of Mechanical EngineeringIran University of Science and TechnologyIran

Proppants transport is an advanced technique to improve the hydraulic fracture phenomenon,in order to promote the versatility of gas/oil reservoirs.A numerical simulation of proppants transport at both hydraulic fracture(HF)and natural fracture(NF)intersection is performed to provide a better understand-ing of key factors which cause,or contribute to proppants transport in HF-NF *** fluid dynamics(CFD)in association with discrete element method(DEM)is used to model the complex interactions between proppant particles,host fluid medium and fractured *** effect of non-spherical geometry of particles is considered in this model,using the multi-sphere *** interaction forces between fluid flow and particles are considered in the computational ***,the inter-actions of particle-particle and particle-wall are taken into account via Hertz-Mindlin *** results of the CFD-DEM simulations are compared to the experimental *** is found that the CFD-DEM sim-ulation is capable of predicting proppant transport and deposition quality at intersections which are in agreement with experimental *** results indicate that the HF-NF intersection type,fluid velocity and NF aperture affect the quality of blockage occurrence,presenting a new index,called the blockage coefficient which indicates the severity of the blockage.

关键词： Hydraulic fracture process Proppants transport CFD-DEM method HF-NF intersection Blockage coffcient

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New Painlevé Integrable(3+1)-Dimensional Combined pKP–BKP Equation:Lump and Multiple Soliton Solutions

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Chinese Physics Letters 2023年第12期40卷 19-26页

作者： Abdul-majid Wazwaz Department of Mathematics Saint Xavier UniversityChicagoIL 60655USA

We introduce a new form of the Painlevé integrable(3+1)-dimensional combined potential Kadomtsev–Petviashvili equation incorporating the B-type Kadomtsev–Petviashvili equation(pKP–BKP equation). We perform the Painlevé analysis to emphasize the complete integrability of this new(3+1)-dimensional combined integrable equation. We formally derive multiple soliton solutions via employing the simplified Hirota bilinear method. Moreover, a variety of lump solutions are determined. We also develop two new(3+1)-dimensional pKP–BKP equations via deleting some terms from the original form of the combined p KP–BKP equation. We emphasize the Painlevé integrability of the newly developed equations, where multiple soliton solutions and lump solutions are derived as well. The derived solutions for all examined models are all depicted through Maple software.

关键词： equation method integrable

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Synthesis of ITO Nanoparticles Prepared by the Degradation of Sulfide Method

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Chinese Physics Letters 2012年第7期29卷 239-241页

作者： majid.Farahmandjou Department of Physics Varamin Pishva BranchIslamic Azad UniversityVaraminIran

Indium tin oxide (ITO) nanoparticles are synthesized by the two-degradation sulfide and liquid-phase co-precipitation method under the given conditions with solutions of InCl3·4H2O and SnCl4·5H2O in the presence of *** sample powders were characterized by x-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses after heat *** SEM results show that the size of the ITO particles prepared by the coprecipitation method is decreased to 100nm,whereas the size of the ITO prepared by degradation of sulfide increases to 1μm after heat *** XRD results reveal that the size of crystallite ITO particles is increased with increasing annealing *** the intensity ratio of I400/I222 has an increase of 29.07%for ITO prepared by the co-precipitation method.

关键词： sulfide method size

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