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Qualitative Land Suitability Evaluation for main Irrigated Crops in the Shahrekord Plain, Iran: A Geostatistical Approach Compared with Conventional method

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Pedosphere 2013年第6期23卷 767-778页

作者： Y.SAFARI I.ESFANDIARPOUR-BOROUJENI A.KAmALI m.H.SALEHI m.bagheri-bodaghabadi College of Agriculture Vali-e-Asr University of Rafsanjan Department of Soil Science College of AgricultureVali-e-Asr University of Rafsanjan Department of Soil Science College of AgricultureShahrekord University

The purity of soil map units and their quality for various uses like land suitability evaluation are always *** main objective of this study was to compare the precision of qualitative land suitability classification based on geostatistical and conventional soil mapping methods for main irrigated crops in the Shahrekord Plain,Central Iran.A regular grid sampling method consisting 104sample points was designed and soil samples were *** kriged maps were achieved for all studied soil attributes after physico-chemical ***,to combine kriged maps and ecological requirements of the studied crops,a script was designed in ILWIS 3.4 software and consequently,kriged qualitative land suitability maps were *** qualitative land suitability was also mapped based on the representative pedon analysis in each soil map ***,comparison of the conventional and kriged maps was carried out using the statistical method,error *** results showed that the overall accuracies of wheat,sugar beet,potato and alfalfa maps were 39.8%,24.3%,18.7%and 18.6%at subclass category,respectively,whereas these values increased to80.9%,82.3%,23.7%and 82.3%at class level,***,it can be stated that thanks to the relative facility of conventional soil survey compared with geostatistical methods,this method can be expressed as a preferable way for handling a usual land suitability evaluation design;but using soil map units as land suitability delineations may lead to unsatisfactory results in estimation of quantity and type of existing limitations.

关键词： land use planning ordinary kriging representative pedon soil variability

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PCL/HA静电纺丝纤维涂层对可降解mg/HA复合材料的表面改性:力学性能、腐蚀和生物相容性

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Transactions of Nonferrous metals Society of China 2024年第5期34卷 1470-1486页

作者： m.SHAmSI m.SEDIGHI A.bagheri School of mechanical Engineering Iran University of Science and TechnologyTehranIran

采用搅拌铸造和挤压法制备mg/HA复合材料,并在其表面采用静电纺丝法涂覆聚己内酯/羟基磷灰石(PCL/HA)纤维(2.5%和5%HA,质量分数),以提高其耐腐蚀性。力学性能测试结果表明,复合材料的压缩屈服强度从73mPa(纯镁)提高到151mPa,提高了107%... 详细信息

采用搅拌铸造和挤压法制备mg/HA复合材料,并在其表面采用静电纺丝法涂覆聚己内酯/羟基磷灰石(PCL/HA)纤维(2.5%和5%HA,质量分数),以提高其耐腐蚀性。力学性能测试结果表明,复合材料的压缩屈服强度从73mPa(纯镁)提高到151mPa,提高了107%。SEm、EDS和XRD分析表明,HA颗粒分布在多孔涂层中。极化曲线结果表明,涂层试样的耐腐蚀性能均优于未涂覆试样。PCL涂层使样品的腐蚀电流密度降低了两个数量级。通过极化和体外腐蚀试验证明了HA在涂层中的有效性。涂层和随后形成的Ca-P层阻碍了模拟体液与基体的接触和渗透,从而起到保护表面的作用。PCL/2.5%HA涂层样品的腐蚀速率最低,其平均值为0.98mm/a,与未涂层样品相比,在14天内减少了81%。根据3天mTT结果,使用PCL/2.5%HA涂层可使细胞活性从43%提高到121%。综上,涂覆PCL/2.5%HA纤维的mg/HA复合材料在生物可吸收植入物方面具有广阔的应用前景。

关键词：镁基复合材料复合涂层生物可降解羟基磷灰石聚己内酯纤维

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Phonon-dependent transport through a serially coupled double quantum dot system

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Chinese Physics B 2014年第5期23卷 510-515页

作者： m.bagheri Tagani H.Rahimpour Soleimani Department of Physics University of Guilan

Using Keldysh nonequilibrium Green function formalism and mapping a many-body electron-phonon interaction onto a one body problem, the electron transport through a serially coupled double quantum dot system is analyzed. The influence of the electron-phonon interaction, temperature, detuning, and interdot tunneling on the transmission coefficient and current is studied. Our results show that the electron-phonon interaction results in the appearance of the side peaks in the transmission coefficient, whose height is strongly dependent on the phonon temperature. We have also found that the inequality of the electron-phonon interaction strength in two dots gives rise to an asymmetry in the current-voltage characteristic. In addition, the temperature difference between the phonon and electron subsystems results in the reduction of the saturated current and the destruction of the step-like behavior of the current. It is also observed that the detuning can improve the magnitude of the current by compensating the mismatch of the quantum dots energy levels induced by the electron-phonon interaction.

关键词： quantum dot electron-phonon interaction Keldysh nonequilibrium Green function formalism,current-voltage characteristic

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Charge and spin-dependent thermal efficiency of polythiophene molecular junction in presence of dephasing

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Chinese Physics B 2015年第10期24卷 576-583页

作者： Z.Golsanamlou m.bagheri Tagani H.Rahimpour Soleimani Department of Physics University of Guilan

The charge and spin-dependent thermoelectric properties of different lengths of polythiophene in a molecular junction are investigated using the B ¨uttiker probe method within Green function formalism in linear response regime. The coupling of the molecular chain to three-dimensional ferromagnetic electrodes is described by a tight-binding model for both parallel and antiparallel spin configurations. The decrease of height of transmission probability peaks and thermoelectric coefficients are observed in the presence of the B ¨uttiker probes. The reduction is more intensive in the strong dephased *** show that the spin magnetothermopower is bigger than the charge magnetothermopower due to the larger difference between the spin thermopowers with respect to the charge ones. In addition, we observed that the kind of carriers participating in the thermoelectric transport depends on the number of the thiophene rings.

关键词： polythiophene Green function thermoelectric coefficients Buttiker probes ferromagnetic elec-trodes

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Thermoelectric Properties of Single molecule Junction in Presence of Dephasing and Different Coupling Geometries

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Communications in Theoretical Physics 2015年第9期64卷 361-366页

作者： Z.Golsanamlou m.bagheri Tagani H.Rahimpour Soleimani Department of Physics University of Guilan

The thermoelectric properties of a benzene molecule coupled to three-dimensional metallic electrodes are examined in the presence of dephasing processes using Green function formalism in the linear response regime. The three different kind of configurations(ortho, meta and para) are taken into account for the coupling between the molecule and electrodes. Results show that the thermoelectric properties of the single molecular junction are strongly dependent on the coupling geometry. Our results predict that the thermoelectric efficiency is increased in specific geometry as a consequence of interference effects. It is found that the dephasing effects result in the reduction of the thermoelectric efficiency.

关键词： nanostructures electrical conductivity thermal con

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Quantum speed limit time and entanglement in a non-markovian evolution of spin qubits of coupled quantum dots

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Chinese Physics B 2020年第12期29卷 244-250页

作者： m.bagheri Harouni Department of Physics University of IsfahanHezar Jerib St.Isfahan 81764-73441Iran Department of Physics Quantum Optics GroupUniversity of IsfahanHezar Jerib St.Isfahan 81764-73441Iran

Quantum speed limit time and entanglement in a system composed of coupled quantum dots are *** excess electron spin in each quantum dot constitutes the physical system(qubit).Also the spin interaction is modeled through the Heisenberg model and the spins are imposed by an external magnetic *** into account the spin relaxation as a non-markovian process,the quantum speed limit and entanglement evolution are *** findings reveal that increasing the magnetic field leads to the faster quantum *** addition,the temperature increment causes the longer quantum speed limit time as well as the entanglement degradation.

关键词： quantum speed limit time quantum entanglement open quantum systems quantum dots

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Analysis of resonant coupling coil configurations of EV wireless charging system:a simulation study

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Frontiers in Energy 2020年第1期14卷 152-165页

作者： m.LU A.JUNUSSOV m.bagheri Electrical and Computer Engineering Department Nazarbayev UniversityAstana010000Kazakhstan

Nowadays,internal combustion engine vehicles are considered as one of the major contributors to air *** make transportation more environmentally friendly,plug-in electric vehicles(PEVs)have been ***,with an increase in the number of PEVs,the drawbacks associated with the cost and size,as well as charging cables of batteries have *** address these challenges,a novel technology named wireless charging system has been recently *** technology rapidly evolves and becomes very attractive for charging operations of electric ***,wireless charging systems offer highly efficient power transfer over the distances ranging from several millimeters to several hundred *** paper is focused on analyzing electromagnetically coupled resonant wireless technique used for the charging of *** resonant wireless charging system for EVs is modeled,simulated,and then examined by changing different key parameters to evaluate how transfer distance,load,and coil’s geometry,precisely number of coil’s turns,coil’s shape,and inter-turn distance,influence the efficiency of the charging *** simulation results are analyzed and critical dimensions are *** is revealed that a proper choice of the dimensions,inter-turn distance,and transfer distance between the coils can result in a significant improvement in charging ***,the influence of the transfer distance,frequency,load,as well as the number of the turns of the coil on the performance of wireless charging system is the main focus of this paper.

关键词： electromagnetically coupled resonator nearfield power transfer wireless power transfer(WPT)

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Novel azo dyes derived from 8-methyl-4-hydroxyl-2-quinolone:Synthesis,UV-vis studies and biological activity

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Chinese Chemical Letters 2013年第5期24卷 425-428页

作者： E.O.moradi Rufchahi H.Pouramir m.R.Yazdanbakhsh H.Yousefi m.bagheri m.Rassa Department of Chemistry Faculty of ScienceLahijan BranchIslamic Azad University Department of Chemistry Faculty of SciencesUniversity of Guilan Department of Biology Faculty of SciencesUniversity of Guilan

In this study,N,N＇-di-（2-methylphenyl）malonamide was synthesized and reacted with polyphosphoric acid to afford *** novel azo disperse dyes were then synthesized by linking diazotized p-substituted aniline derivatives with *** solvatochromism of these azo dyes in various solvents was *** the compounds were then evaluated for their antibacterial activity against four bacteria,*** *** luteus, Salmonella enterica,and Pseudomonas *** results showed that some of these compounds have high levels of antibacterial activity.

关键词： Azo dyes Disperse dyes Hydroxyl quinolone Absorption spectrum Antibacterial studies

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Comprehensive analysis of slope stability and determination of stable slopes in the Chador-malu iron ore mine using numerical and limit equilibrium methods

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Journal of China University of mining and Technology 2008年第4期18卷 488-493页

作者： ATAEI m bodaghabadi S Faculty of mining Petroleum and Geophysics Engineering Shahrood University of Technology

One of the critical aspects in mine design is slope stability analysis and the determination of stable slopes. In the Chador- malu iron ore mine, one of the most important iron ore mines in central Iran, it was considered vital to perform a comprehensive slope stability analysis. At first, we divided the existing rock hosting pit into six zones and a geotechnical map was prepared. Then, the value of mRmR （mining Rock mass Rating） was determined for each zone. Owing to the fact that the Chador-malu iron ore mine is located in a highly tectonic area and the rock mass completely crushed, the Hoek-Brown failure criterion was found suitable to estimate geo-mechanical parameters. After that, the value of cohesion （c） and friction angle （tp） were calculated for different geotechnical zones and relative graphs and equations were derived as a function of slope height. The stability analyses using numerical and limit equilibrium methods showed that some instability problems might occur by increasing the slope height. Therefore, stable slopes for each geotechnical zone and prepared sections were calculated and presented as a function of slope height.

关键词： slope stability limit equilibrium method numerical method rock mass classification

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Influences of spin-orbit interaction on quantum speed limit and entanglement of spin qubits in coupled quantum dots

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Chinese Physics B 2021年第9期30卷 94-100页

作者： m.bagheri Harouni Quantum Optics Group Department of PhysicsUniversity of IsfahanHezar Jerib St.Isfahan 81764-73441Iran

Quantum speed limit and entanglement of a two-spin Heisenberg XYZ system in an inhomogeneous external magnetic field are *** physical system studied is the excess electron spin in two adjacent quantum *** influences of magnetic field inhomogeneity as well as spin-orbit coupling are ***,the spin interaction with surrounding magnetic environment is investigated as a non-markovian *** spin-orbit interaction provides two important features:the formation of entanglement when two qubits are initially in a separated state and the degradation and rebirth of the entanglement.

关键词： quantum speed limit time quantum entanglement open quantum systems spin-orbit effects

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