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Evaluation of Sediment Transport in the Naiband Gulf Area Using Mike21

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Open Journal of Geology 2017年第2期7卷 182-192页

作者： Parviz Soltani Mehdi Behdarvandi Askar hossein bahrami Sadegh Haghighi Pour Coastal Engineering Khorramshahr University of Marine Science and Technology Khorramshahr Iran Department of Offshore Structures Faculty of Marine Engineering Khorramshahr University of Marine Science and Technology Khorramshahr Iran Department of Civil Engineering Khuzestan University Jihad Higher Education Center Khuzestan Iran

Naiband Gulf is part of Naiband National Park known as Iran’s first marine national park. It is Iran’s most important habitats in the northern Persian Gulf due to mangrove forests, coral community, and community of marine animals. The study examines the sediment transport in the Naiband Gulf and around it, where to achieve this. First, the required data including coastline information, sediment profile, and bathymetry information and waves are obtained. Then by Mike21, 2011 Version models, it was attempted to simulate waves and currents due to it in the coastal zone to determine the rate and direction of sediment transport in the Naiband Gulf area. The results obtained in this study indicate that the majority of sediment transport directions on both sides of the gulf have been internal. The existence of structures in the north and south of the Gulf has reduced alongshore sediment flows and sedimentation, especially in the south of the gulf that is a serious threat to corals.

关键词： Naiband Gulf Mike21 Software Sediment Transport Ecosystem

Biostratigraphy,Microfacies,Sedimentary Environments and Sequence Stratigraphy of the Late Devonian-Carboniferous Deposits at the Anarak Section,Central Iran

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Acta Geologica Sinica(English Edition) 2023年第4期97卷 1038-1057页

作者： Elaheh SATTARI Ali bahrami hossein VAZIRI-MOGHADDAM Azizollah TAHERI Iliana BONCHEVA Department of Geology Faculty of SciencesUniversity of IsfahanIsfahanIran Faculty of Earth Sciences Shahrood University of TechnologyShahroodIran Geological Institute Bulgarian Academy of Sciences113SofiaBulgaria

The Late Devonian-early Carboniferous deposits of the Anarak section in northeastern Isfahan,Central Iran,evaluated based on conodont biostratigraphy,sedimentary environment and sequence *** to the field observations,five lithological units were *** the conodont fauna of the Late Devonian-Carboniferous(Mississippian-Pennsylvanian)deposits of Bahram,Shishtu,and Qaleh(Sardar 1)formations in Anarak section led to the identification of 67 species of 18 conodont genera,and accordingly 22 conodont biozones were *** correlation of sea-level change curves,regarding to the conodont biofacies with the global sea-level curve,demonstrates the relative correlation in the mentioned times due to the shallow condition of the central Iran basin compared to the European and American *** microfacies analysis led to the identification of 12 microfacies related to the open sea,bioclastic barrier,lagoon and tidal flat sub-sedimentary environments in a homoclinal carbonate ramp *** on sequence stratigraphy studies,three 3rd order sequences were *** first sequence,which is of the Late Devonian(upper part of the Bahram Formation,32.5 m),the second sequence(12.5 m)is the Late Devonian(uppermost part of the Bahram Formation),and the third sequence(68 m)is the early Carboniferous(the Shishtu I Formation).

关键词： sequence stratigraphy conodont Devonian Carboniferous Anarak central Iran

Discrete time multiple spacecraft formation flying attitude optimal control in presence of relative state constraints

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Chinese Journal of Aeronautics 2021年第4期34卷 293-305页

作者： hossein MORADI PARI hossein BOLANDI Department of Electrical Engineering Iran University of Science and TechnologyTehran 009821Iran

This paper addresses the challenge of synchronized multiple spacecraft attitude reorientation in presence of pointing and boundary constraints with limited inter-spacecraft communication *** attitude pointing constraint among the fleet of spacecraft has also been modeled and considered during the attitude maneuvers toward the desired *** fling control structure that consists of decentralized path planners based on virtual structure approach joint with discrete time optimal local controller is designed to achieve the mission's *** to digital computing of spacecraft's onboard computer,local optimal controller based on discrete time prediction and correction algorithm has been *** time step of local optimal algorithm execution is designed so that the spacecraft track their desired attitudes with appropriate error *** convergence of the proposed architecture and stability of local controller's tracking error within appropriate upper bound are ***,a numerical simulation of a stereo imaging scenario is presented to verify the performance of the proposed architecture and the effectiveness of the algorithm.

关键词： Decentralized Discrete time Formation flying Optimal control Spacecraft Virtual structure approach

Effect of different treatments on electrokinetic remediation of Zn, Pb and Cd from a contaminated calcareous soil

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Chinese Journal of Chemical Engineering 2021年第10期34卷 255-265页

作者： hossein Beyrami National Salinity Research Center Agricultural ResearchEducation and Extension OrganizationYazdIran

Electrokinetic remediation is a promising method to decontamination of the heavy metals from *** this paper,the remediation of a contaminated calcareous soil with Zn,Cd and Pb sampled from around Zanjan province of Iran,was investigated using electrokinetic *** this paper,the soil contain a high concentration of Zn(1400 mg·kg^(-1)),Cd(15 mg·kg^(-1))and Pb(250 mg·kg^(-1)).Electrokinetic decontamination consists of two series of experiments as follows:(1)the effect of five treatments including the use of distilled water,acetic acid and EDTA electrolyte solutions,and approaching anodes systems,and the circulation flow of electrolyte at two different voltage gradient(i.e.1.33 and 2.66 V·cm^(-1)),and(2)the effect of moisture content(saturated,FC and 0.7 FC,FC indicated soil moisture at "Field Capacity")with a voltage gradient of 1.33 V·cm^(-1).After applying electric current for 5 days,the results of experiments indicated that the removal efficiency of heavy metals can be increased by raising the voltage *** this matter,the highest remediation can be observed among different treatments in EDTA(Ethylene diamine tetra acetic acid)treatment(40.11%,43.10%and 24.7%for Zn,Cd and Pb,respectively).Moreover,the heavy metals removal at the saturated moisture was at the highest level so that 32.62%cadmium,31.33%zinc and 18.82%lead being removed after 120 h of electric current *** decreasing moisture to 0.7 FC,the removal percentage for the three heavy metals obtained 20.97%,18.44%and 12.25%,***,Cd had the highest removal,and Zn and Pb were next among the three heavy metals in question.

关键词： Decontamination Soil moisture Voltage gradient Cadmium Lead Zinc

Effects of Location,Size and Number of Wind Turbine Receptors on Blade Lightning Protection

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电力系统自动化 2012年第8期36卷 122-127页

作者： hossein Kazemi KAREGAR hossein BAGHERIAN Faculty of Electrical &Computer Engineering Shahid Beheshti University

Electric and magnetic fields generated by lightning cause a serious hazard to various *** wind turbine installations with higher power capacity are *** power capacity requires higher height and so there is more probability of lightning *** are the most probable components to be struck by *** most common lightning protection system for the blades consists of several metallic receptors on the blade *** are connected to the ground by metallic down-conductors placed inside the blade *** paper studies effects of the receptor configurations on protecting the blade against lightning *** this purpose,an analysis procedure based on finite element method(FEM)in COMSOL Multiphysics software environment is *** voltage distribution around the blade is simulated for various configurations of *** best configuration is *** are performed on the blade model of a special wind turbine,which isVESTAS V47".

关键词：风力发电机组受体刀片防雷叶片表面位置最佳配置发电能力

REMOVAL OF MERCURY FROM WATER USING POLYPYRROLE AND ITS COMPOSITES

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Chinese Journal of Polymer Science 2007年第4期25卷 393-397页

作者： hossein Eisazadeh Faculty of Chemical Engineering University of MazandaranP.O.Box 484BabolIran

One of the suitable methods for removing heavy metals from water is by using surface adsorption process. In this paper, the preparation of polypyrrole and its composites as adsorbents are discussed and the capability of separating mercury from water is investigated. The results indicated that the polypyrrole and its composites are able to remove mercury from aqueous media. Furthermore the adsorption percentage is related to the surface morphology, type of additives and its concentration.

关键词： Polypyrrole and its composites Mercury removal Additives Surface morphology.

Thermodynamics of 4D dS/AdS Gauss–Bonnet black holes according to consistent gravity theory in the presence of a cloud of strings

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Communications in Theoretical Physics 2022年第4期74卷 72-84页

作者： hossein Ghaffarnejad Faculty of Physics Semnan UniversityP.C.35131-19111SemnanIran

By looking at the Lovelock theorem one can infer that the gravity model given by[1]cannot be applicable for all types of 4D Einstein–Gauss–Bonnet(EGB)curved *** reason for this is that in 4D space-time,the Gauss–Bonnet invariant is a total derivative and hence it does not contribute to gravitational ***,the authors of[2]presented an alternative consistent EGB gravity model instead of[1]by applying a break-of-diffeomorphism *** this work,we use the alternative model to produce a de Sitter(dS)/Anti-de Sitter(AdS)black hole metric and then investigate its thermodynamic behavior in the presence of a cloud of Nambu–Goto *** derivations show that the resulting diagrams of pressure vs specific volume at a constant temperature are similar to that for a van der Waals gas/fluid in an ordinary thermodynamic system in the d S sector but not in the Ad S *** this,we infer that the black hole participates in the small-to-large black hole phase transition in the dS background,while it exhibits a Hawking–Page phase transition in the AdS *** the latter case,an evaporating black hole eventually reaches an AdS vacuum space because of its instability.

关键词： Lovelock gravity string Nambu-Goto Gauss-Bonnet black hole thermodynamic cosmological constant phase transition

Correlation of the mean activity coefficient of aqueous electrolyte solutions using an equation of state

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Chinese Journal of Chemical Engineering 2016年第10期24卷 1456-1463页

作者： Seyed hossein Mazloumi Chemical Engineering Department Faculty of EngineeringFerdowsi University of Mashhad

Accurate calculation of thermodynamic properties of electrolyte solution is essential in the design and optimization of many processes in chemical industries. A new electrolyte equation of state is developed for aqueous electrolyte solutions. The Carnahan-Starling repulsive model and an attractive term based on square-well potential are adopted to represent the short range interaction of ionic and molecular species in the new electrolyte EOS. The long range interaction of ionic species is expressed by a simplified version of Mean Spherical Approximation theory （MSA）. The new equation of state also contains a Born term for charging free energy of ions. Three adjustable parameters of new eEOS per each electrolyte solution are size parameter, square-well potential depth and square-well potential interaction range. The new eEOS is applied for correlation of mean activity coefficient and prediction of osmotic coefficient of various strong aqueous electrolyte solutions at 25℃ and 0.1 MPa. In addition, the extension of the new eEOS for correlation of mean activity coefficient and solution density of a few aqueous electrolytes at temperature range of 0 to 100℃ is carried out.

关键词： Aqueous electrolyte solution Electrolyte equation of state Activity coefficient Osmotic coefficient Solution density

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Journal of Systems Science & Complexity 2014年第1期27卷 3-20页

作者： HASSANI hossein ABDOLLAHZADEH Majid IRANMANESH hossein MIRANIAN Arash Executive Business Centre Bournemouth University Bournemouth 89 Holdenhurst Road BH8 8EB UK. Department of Mechanical Engineering Pard@ Branch Islamic Azad University Pardis new city TehranIran. Department of Industrial Engineering College of Engineering University of Tehran Iran Institute of Inter-national Energy Studies ( IIES) Tehran Iran. Department of Mechanical Engineering Pardis Branch Islamic Azad University Pardis New City TehranIran.

This paper proposes a selfsimilar local neurofuzzy （SSLNF） model with mutual informati onbased input selection algorithm for the shortterm electricity demand forecasting. The proposed self similar model is composed of a number of local models, each being a local linear neurofuzzy （LLNF） model, and their associated validity functions and can be interpreted itself as an LLNF model. The proposed model is trained by a nested local liner model tree （NLOLIMOT） learning algorithm which partitions the input space into axisorthogonal subdomains and then fits an LLNF model and its associated validity function on each subdomain. Furthermore, the proposed approach allows different input spaces for rule premises （validity functions） and consequents （local models）. This appealing property is employed to assign the candidate input variables （i.e., previous load and temperature） which influence shortterm electricity demand in linear and nonlinear ways to local models and validity functions, respectively. Numerical results from shortterm load forecasting in the New England in 2002 demonstrated the accuracy of the SSLNF model for the STLF applications.

关键词： Mutual information self-similar local neuro-fuzzy model short-term load forecasting.