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Two-dimensional MOF-based materials:Preparations and applications as electrodes in Li-ion batteries

Journal of Energy Chemistry 2024年第10期97卷 388-418页

作者： Narges Nobakht Seyyed Ahmad Etghani Mohammad Hosseini seyed hamed aboutalebi Condensed Matter National Laboratory Institute for Research in Fundamental Sciences Batt Scout Company School of Biological Sciences Institute for Research in Fundamental Sciences

Two-dimensional(2D) metal-organic frameworks(MOFs) are rapidly emerging as a unique class of mushrooming family of 2D materials offering distinctive features,such as hierarchical porosity,extensive surface area,easily available active sites,and versatile,adaptable *** promising characteristics have positioned them as highly appealing alternatives for a wide range of applications in energy storage technologies,including lithium ***,the poor conductivity and limited stability of 2D MOFs have limited their real applications in electrochemical energy *** limitations have therefore warranted ongoing research to enhance the performance of 2D *** the significance of 2D MOF-based materials as an emerging class of advanced materials,a multitude of strategy has been devised to address these challenges such as synthesizing 2D conductive MOFs and derivatives along with 2D MOF *** promising approach involves the use of 2D MOF derivatives,including transition metal oxides,which due to their abundant unsatu rated active metal sites and shorter diffusion paths,offer superior electrochemical ***,by combining pristine 2D MOFs with other materials,hybrid 2D MOF materials can be *** hybrids,with their enhanced stability and conductivity,can be directly utilized as active materials in lithium *** the present review,we categorize 2D MOF-based materials into three distinct groups:pristine 2D MOFs,2D MOFderived materials,and 2D MOF hybrid *** synthesis methods for each group,along with their specific applications as electrode materials in lithium-ion batteries,are discussed in *** comprehensive review provides insights into the potential of 2D MOFs while highlighting the opportunities and challenges that are present in this evolving field.

关键词： 2D materials 2D metal-organic frameworks Energy storage Li-ion batteries Synthesis

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Fault ride-through capability improvement in a DFIG-based wind turbine using modified ADRC

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Protection and Control of Modern Power Systems 2022年第1期7卷 751-787页

作者： seyed Reza Mosayyebi seyed Hamid Shahalami hamed Mojallali Electrical Engineering Department Faculty of EngineeringUniversity of GuilanRashtIran

In this paper,an overview of several strategies for fault ride-through(FRT)capability improvement of a doubly-fed induction generator(DFIG)-based wind turbine is *** and parameter variations have adverse effects on the performance of these *** is desirable to use a control method that is robust to such *** disturbance rejection control(ADRC)is one of the most common methods for eliminating the effects of *** improve the performance of the conventional ADRC,a modified ADRC is introduced that is more robust to disturbances and offers better *** non-derivability of the fal function used in the conventional ADRC degrades its efficiency,so the modified ADRC uses alternative functions that are derivable at all points,i.e.,the odd trigonometric and hyperbolic functions(arcsinh,arctan,and tanh).To improve the effciency of the proposed ADRC,fuzzy logic and fractional-order functions are used *** fuzzy fractional-order ADRC(FFOADRC),all disturbances are evaluated using a nonlinear fractional-order extended state observer(NFESO).The performance of the suggested structure is investigated in MATLAB/*** simulation results show that during disturbances such as network voltage sag/swell,using the modified ADRCs leads to smaller fluctuations in stator flux amplitude and DC-link voltage,lower variations in DFIG velocity,and lower total harmonic distortion(THD)of the stator *** demonstrates the superiority over conventional ADRC and a proportional-integral(PI)***,by chang-ing the crowbar resistance and using the modified ADRCs,the peak values of the waveforms(torque and currents)can be controlled at the moment of fault occurrence with no significant distortion.

关键词： Doubly-fed induction generator(DFIG) Auto disturbance rejection control(ADRC) Fault ride-through(FRT) Wind turbine Nonlinear fractional-order extended state observer(NFESO)

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New approach for assessing the weldability of precipitation-strengthened nickel-base superalloys

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International Journal of Minerals,Metallurgy and Materials 2013年第12期20卷 1183-1191页

作者： Homam Naffakh Moosavy Mohammad-Reza aboutalebi seyed Hossein seyedein Meisam Khodabakhshi Carlo Mapelli School of Metallurgy and Materials Engineering Iran University of Science and Technology (IUST) MAPNA Turbine Engineering and Manufacturing Company (TUGA) Dipartimento di Meccanica Politecnico di Milano

A new procedure was proposed for evaluating the weldability of nickel-base superalloys. The theory is on the basis of two microstructural patterns. In pattern I, the weld microstructure exhibits severe alloying segregation, many low-melting eutectic structures, and low weldability. The weld requires a weaker etchant and a shorter time for etching. In pattern Ⅱ, the weld microstructure displays less alloying segregation, low quantity of eutectic structures, and high weldability. The weld needs a stronger etchant and a longer time for etching. Five superalloys containing different amounts of Nb and Ti were designed to verify the patterns. After welding operations, the welds were etched by four etchants with different corrosivities. The weldability was determined by TG-DSC measurements. The metallography and weldability results confirmed the theoretic patterns. Finally, the etchant corrosivity and etching time were proposed as new criteria to evaluate the weldability of nickel-base superalloys.

关键词： superalloys nickel alloys weldability metallography etching segregution eutectics

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Effectiveness of two conventional methods for seismic retrofit of steel and RC moment resisting frames based on damage control criteria

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Earthquake Engineering and Engineering Vibration 2017年第3期16卷 537-555页

作者： seyed Bahram Beheshti Aval hamed Sadegh Kouhestani Lida Mottaghi Faculty of Civil Engineering K. N. Toosi University of Technology Tehran 1ran Faculty of Technical and Engineering Science & Culture University Tehran 1ran

This study investigates the efficiency of two types of rehabilitation methods based on economic justification that can lead to logical decision making between the retrofitting schemes. Among various rehabilitation methods, concentric chevron bracing（CCB） and cylindrical friction damper（CFD） were selected. The performance assessment procedure of the frames is divided into two distinct phases. First, the limit state probabilities of the structures before and after rehabilitation are investigated. In the second phase, the seismic risk of structures in terms of life safety and financial losses（decision variables） using the recently published FEMA P58 methodology is evaluated. The results show that the proposed retrofitting methods improve the serviceability and life safety performance levels of steel and RC structures at different rates when subjected to earthquake loads. Moreover, these procedures reveal that financial losses are greatly decreased, and were more tangible by the application of CFD rather than using CCB. Although using both retrofitting methods reduced damage state probabilities, incorporation of a site-specific seismic hazard curve to evaluate mean annual occurrence frequency at the collapse prevention limit state caused unexpected results to be obtained. Contrary to CFD, the collapse probability of the structures retrofitted with CCB increased when compared with the primary structures.

关键词： steel and RC moment resisting frames seismic retrofitting collapse probability concentric chevron bracing(CCB) cylindrical friction damper (CFD)

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Consolidation behavior of the expansive clay treated with cement and zeolite

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Journal of Central South University 2022年第9期29卷 3140-3157页

作者： hamed AHMADI CHENARBONI seyed Hamid LAJEVARDI Hossein MOLAABASI Ehsanollah ZEIGHAMI Department of Civil Engineering Arak BranchIslamic Azad UniversityArakIran Department of Civil Engineering Gonbad Kavous UniversityGonbadGolestanIran

The expansive clays are extremely sensitive to the slight moisture alteration,exhibiting sequentially volume *** settlement of the buildings and infrastructures underlying expansive soil is a critical challenge that geotechnical engineers have to deal ***,the objective of this study is to assess the alteration in the compressibility behavior of expansive clay respecting partial replacement of cement by zeolite in cemented *** this purpose,7 and 28 d cured samples treated with 6%,8%,10%,and 12%cement addition and 0,10%,30%,50%,70%,and 90%cement replacement by zeolite were investigated through Atterberg limit and a series of one-dimensional consolidation tests to evaluate the consistency limits and compressibility *** liquid limits of the soil samples indicated a decremental trend as the cement content ***,the increase of zeolite replacement up to 30%in each specific cement content diminished liquid limit to its lowest *** increment of zeolite replacement increased the liquid limit of the soil-binder *** lowest plasticity index was also achieved at the 30%zeolite replacement percentage;hence,the lowest swelling potential would be resulted,concerning an indirect *** results of the consolidation experimentations disclosed that zeolite replacement had adverse influence on consolidation parameters of cemented samples such as compression index,swell index,coefficient of compressibility,coefficient of volume compressibility,and coefficient of consolidation after 7 d of curing whereas after 28 d of curing,the 30%zeolite-replaced samples represented the best consolidation ***,it can be stated that the addition of cement alongside the partial substitution of cement by zeolite can be a beneficial strategy for the geo-environmental targets of this study.

关键词： expansive clays cement zeolite consolidation consistency limits

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Influence of Specimen Geometry of Hot Torsion Test on Temperature Distribution During Reheating Treatment of API-X70

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Journal of Iron and Steel Research International 2010年第3期17卷 34-39页

作者： Bahman Mirzakhani Shahin Khoddam Hossein Arabi Mohammad Taghi Salehi seyed Hossein seyedein Mohammad Reza aboutalebi Faculty of Engineering Arak University Department of Mechanical Engineering Monash UniversityClayton Campus Department of Materials and Metallurgical Engineering Iran University of Science and Technology

The commercial finite element package ANSYSTM was utilized for prediction of temperature distribution during reheating treatment of hot torsion test （HTT） samples with different geometries for API-X70 microalloyed steel. Simulation results show that an inappropriate choice of test specimen geometry and reheating conditions before deformation could lead to non-uniform temperature distribution within the gauge section of specimen. Therefore, assumptions of isothermal experimental conditions and zero temperature gradient within the specimen cross section appear unjustified and led to uncertainties of flow curve obtained. Recommendations on finding proper specimen geometry for reducing temperature gradient along the gauge part of specimen will be given to create homogeneous initial microstructure as much as possible before deformation in order to avoid uncertainty in consequent results of HTT.

关键词： hot torsion test simulation specimen geometry reheating treatment microalloyed steel

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Surface integrity and flexural strength improvement in grinding partially stabilized zirconia

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Journal of Central South University 2019年第12期26卷 3261-3278页

作者： Javad KHODAII Farshad BARAZANDEH seyed Mehdi REZAEI hamed ADIBI Ahmed ADSARHAN Department of Mechanical Engineering Amirkabir University of Technology(Tehran Polytechnic)TehranP.O.B.a15875-4413Iran Mechanical Engineering Department University of Malaya(UM)Kuala LumpurMalaysia

Zirconia has been used in medical applications since last few years and an optimum and cost-effective condition in grinding zirconia has drawn industrial *** paper aimed to improve and control the surface integrity,flexural strength and grinding cost in grinding partially stabilized zirconia(PSZ)using a diamond grinding *** phase transition and grindability of PSZ were also *** surfaces analysis shows that all samples subjected to the grinding presented an increase in surface integrity,and the subsurface damages 100 m below the surface were reduced from 3.4%to 0.9%.The flexural strength using 3 point bending test(3PB)shows that grinding increased the flexural strength more than 29%which is the result of higher surface *** ground surfaces were analyzed using X-ray diffraction(XRD)and the results shows that T-M phase transition trend is in accordance with the surface *** other words,XRD analyses prove that T-M phase transition results in higher flexural strength and surface *** was also observed that in the best condition,the grinding cost was reduced by 72%.It can be concluded that controlling the grinding condition in grinding PSZ will result in the increase of the surface integrity and flexural strength.A mathematical model was created to find an optimum condition using response surface method(RSM).It is observed that feed rate has greater effect on the outputs rather than depth of cut.

关键词： grinding ceramic partially stabilized zirconia crack

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Quantifying cardinal temperatures and thermal time required for germination of Silybum marianum seed

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The Crop Journal 2015年第2期3卷 145-151页

作者： Ghasem Parmoon seyed Amir Moosavi hamed Akbari Ali Ebadi Department of Agronomy and Plant Breeding Faculty of Agriculture Mohaghegh Ardabili University Department of Agronomy Faculty of Agriculture Tarbiat Modares University

The response of seed germination to environmental factors can be estimated by nonlinear regression. The present study was performed to compare four nonlinear regression models(segmented, beta, beta modified, and dent-like) to describe the germination rate–temperature relationships of milk thistle(Silybum marianum L.) at six constant temperatures, with the aim of identifying the cardinal temperatures and thermal times required to reach different germination percentiles. Models and statistical indices were calibrated using an iterative optimization method and their performance was compared by root mean square error(RMSE), coefficient of determination(R2) and Akaike information criterion correction(AICc). The beta model was found to be the best model for predicting the required time to reach 50% germination(D50),(R2= 0.99;RMSE = 0.004; AICc =-276.97). Based on the model outputs, the base, optimum, and maximum temperatures of seed germination were 5.19 ± 0.79, 24.01 ± 0.11, and 34.32 ± 0.36 °C,respectively. The thermal times required for 50% and 90% germination were 4.99 and7.38 degree-days, respectively.

关键词： Silymarin Regression models Cardinal temperatures Seed germination

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Energy Management of Networked Smart Railway Stations Considering Regenerative Braking, Energy Storage System, and Photovoltaic Units

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Energy Engineering 2023年第1期120卷 69-86页

作者： Saeed Akbari seyed Saeed Fazel hamed Hashemi-Dezaki School of Railway Engineering Iran University of Science and TechnologyTehran13114-16846Iran Department of Electrical and Computer Engineering University of KashanKashan***Iran Research and Innovational Center for Electrical Engineering(RICE) Faculty of Electrical EngineeringUniversity ofWest Bohemia(UWB)Pilsen30100Czech Republic

The networking of microgrids has received significant attention in the form of a smart *** this paper,a set of smart railway stations,which is assumed as microgrids,is connected *** has been tried to manage the energy exchanged between the networked microgrids to reduce received energy from the utility ***,the operational costs of stations under various conditions decrease by applying the proposed *** smart railway stations are studied in the presence of photovoltaic(PV)units,energy storage systems(ESSs),and regenerative braking *** regenerative braking is one of the essential ***,the stochastic behaviors of the ESS’s initial state of energy and the uncertainty of PV power generation are taken into account through a scenario-based *** networked microgrid scheme of railway stations(based on coordinated operation and scheduling)and independent operation of railway stations are *** proposed method is applied to realistic case studies,including three stations of Line 3 of Tehran Urban and Suburban Railway Operation Company(TUSROC).The rolling stock is simulated in the MATLAB ***,the coordinated operation of networked microgrids and independent operation of railway stations are optimized in the GAMS environment utilizing mixed-integer linear programming(MILP).

关键词： Energy management system(EMS) smart railway stations coordinated operation photovoltaic generation regenerative braking uncertainty scenario-based model mixed-integer linear programming(MILP)

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Tramadol Pill Alone May Cause Serotonin Syndrome

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Chinese Medical Journal 2016年第7期129卷 877-878页

作者： hamed Aminiahidashti Sajjad Shaliee seyed JaberMousavi Gholamhossein Hajiaghaei Department of Emergency Medicine Imam Khomeini Hospital Mazandaran University of Medical Sciences Sari Iran Department of Neurosurgery Imam Khomeini Hospital Mazandaran University of Medical Sciences Sari Iran Department of Community Medicine Imam Khomeini Hospital Mazandaran University of Medical Sciences Sari Iran

To the Editor： Tramadol is a synthetic opioid analgesic chemically related to codeine and is classified as a Class II drug for the treatment of moderate intensity pain according to the WHO recommendation. Tramadol has low affinity for μ- and k-opioid receptors and inhibits the reuptake of both norepinephrine and serotonin （5-hydroxytryptamine） neurotransmitters. It stimulates the dopamine （D2） receptors and also inhibits the gamma amino butyric acid release in central nervous system, Serotonin syndrome （SS） is a potentially life-threatening adverse drug reaction to serotonergic medication.

关键词： Tramadol synthetic chemically

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