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AGGREGATE SPECIAL FUNCTIONS TO APPROXIMATE PERMUTING TRI-HOMOMORPHISMS AND PERMUTING TRI-DERIVATIONS ASSOCIATED WITH A TRI-ADDITIVEψ-FUNCTIONAL INEQUALITY IN BANACH ALGEBRAS

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Acta Mathematica Scientia 2024年第1期44卷 311-338页

作者： Safoura Rezaei ADERYANI Azam AHADI Reza SAADATI hari M.SRIVASTAVA School of Mathematics Iran University of Science and TechnologyNarmakTehranIran Department of Mathematics and Statistics Universtity of VictoriaVictoriaCanada Department of Medical Research China Medical University HospitalChina Medical UniversityTaichung40402China Department of Mathematics and Informatics Azerbaijan University71 Jeyhun Hajibeyli StreetAZ1007BakuAzerbaijan Section of Mathematics International TelematicUniversity UninettunoI-00186RomeItaly

In this paper,we define a new class of control functions through aggregate special *** class of control functions help us to stabilize and approximate a tri-additiveψ-functional inequality to get a better estimation for permuting tri-homomorphisms and permuting tri-derivations in unital C*-algebras and Banach algebras by the vector-valued alternative fixed point theorem.

关键词： permuting tri-homomorphism in Banach algebra permuting tri-derivation on C*-algebra fixed point theorem Ulam-Hyers-Rassias stability aggregate special functions tri-additiveψ-functional inequality

Stability Analysis of DC Microgrid Clusters Based on Step-by-step System Matrix Building Algorithm

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Journal of Modern Power Systems and Clean Energy 2024年第3期12卷 900-912页

作者： K.Jithin N.Mayadevi R.hari Kumar V.P.Mini the Department of Electrical Engineering College of Engineering TrivandrumAPJ Abdul Kalam Technological University(APJAKTU)ThiruvananthapuramIndia

DC microgrids(DCMGs)are made up of a network of sources and loads that are connected by a number of power electronic converters(PECs).The increase in the number of these PECs instigates major concerns in system *** interconnecting the microgrids to form a cluster,the system stability must be *** paper proposes a novel stepby-step system matrix building(SMB)algorithm to update the system matrix of an existing DCMG cluster when a new microgrid is added to the cluster through a distribution *** stability of the individual DCMGs and the DCMG cluster is analyzed using the eigenvalue ***,the particle swarm optimization(PSO)algorithm is used to retune the controller gains if the newly formed cluster is not *** simulation of the DCMG cluster is carried out in MATLAB/Simulink environment to test the proposed *** results are also validated using the OP4510 real-time simulator(RTS).

关键词： Converter DC microgrid cluster eigenvalue interconnection particle swarm optimization system stability system matrix

Optimization of gas lift system for well performance improvement in Asmari formation:A techno-economic perspective

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Petroleum Research 2024年第1期9卷 115-124页

作者： hari Sreenivasan Jash Patel Dev Jain Setu Patel Isaac Wilson Shanker Krishna Drilling Cementing&Stimulation(DCS)Research CentreDepartment of Petroleum EngineeringSchool of Energy Technology(SoET)Pandit Deendayal Energy University(PDEU)Knowledge CorridorRaysanGandhinagarGujarat382426India

Well productivity in the Asmari carbonate formation of southwest Iran has decreased in recent years as a result of production *** production rate must be maintained below 1500 STB/day to prevent water *** this study,a gas lift well is modeled using data from one of the producing wells of this *** analysis is performed using lift-gas injection rates and wellhead pressures at different reservoir pressures and water cut conditions to optimize *** aspects are considered to optimize the artificial gas injection rates at different tubing head pressures and water cut *** the lift-gas injection rate from 0.4 MMscf/day to 1 MMscf/day enhances the oil production rate by 37.71%and 43.89%for 10%and 30%water cut conditions,*** injection rates of 5.2 MMscf/day and 5.4 MMscf/day are determined to be economically optimal for 30%water cut with tubing head pressures of 260 psig and 270 psig,respectively.

关键词： Production enhancement Artificial lift Gas lift Asmari carbonate formation Techno-economic analysis Well productivity

Identification of optimal composition with superior electrochemical properties along the zero Mn^(3+)line in Na_(0.75)(Mn-Al-Ni)O_(2)pseudo ternary system

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Journal of Energy Chemistry 2024年第9期96卷 206-216页

作者： hari Narayanan Vasavan Manish Badole Samriddhi Saxena Velaga Srihari Asish Kumar Das Pratiksha Gami Neha Dagar Sonia Deswal Pradeep Kumar Himanshu Kumar Poswal Sunil Kumar Department of Metallurgical Engineering and Materials Science Indian Institute of Technology IndoreSimrol 453552India High Pressure&Synchrotron Radiation Physics Division Bhabha Atomic Research Centre400085 MumbaiIndia School of Physical Sciences Indian Institute of Technology MandiHimachal Pradesh 175005India Center for Electric Vehicle and Intelligent Transport Systems Indian Institute of Technology IndoreSimrol 453552India

Biphasic layered oxide cathodes,known for their superior electrochemical performance,are prime candidates for commercializing in Na-ion ***,we unveil a series of P3/P2 monophasic and biphasic Al-substituted Na_(3/4)Mn_(5-x/8)Al_(2x/8)Ni_(3-x/8)O_(2)layered oxide cathodes that lie along the‘zero Mn^(3+)line’in the Na_(3/4)(Mn-Al-Ni)O_(2)pseudo-ternary *** structural analysis showed a larger Na^(+)conduction bottleneck area in both P3 and P2 structures with a higher Al3+content,which enhanced their rate *** each composition,the P3/P2 biphasic compound with nearly equal fractions of P3 and P2 phases outperformed their monophasic counterparts in almost all electrochemical performance *** synchrotron XRD measurements obtained for the monophasic P3 and biphasic P2/P3 samples revealed the absence of the O3 phase during *** high structure stability and faster Na^(+)transport kinetics in the biphasic samples underpins the enhancement of electrochemical properties in the Al-substituted P3/P2 *** results highlight fixed oxidation state lines as a novel tool to identify and design layered oxide cathodes for Na-ion batteries in pseudo-ternary diagrams involving Jahn-Teller active cations.

关键词： Layered oxides Biphasic cathode Operando Synchrotron XRD Electrochemical behavior Cyclic performance

Interstitial Doping of SnO_(2) Film with Li for Indium-Free Transparent Conductor

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Chinese Physics Letters 2024年第3期41卷 140-145页

作者：陈兴谦李昊臻陈伟梅增霞 Alexander Azarov andrej Kuznetsov 杜小龙 Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190China Songshan Lake Materials Laboratory Dongguan 523808China Department of Physics Centre for Materials Science and NanotechnologyUniversity of OsloP.O.Box 1048BlindernN-0316 OsloNorway Guangdong SinoPrime Technology Co. Ltd.Dongguan 523808China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China

SnO_(2)films exhibit significant potential as cost-effective and high electron mobility substitutes for In_(2)O_(3)*** this study,Li is incorporated into the interstitial site of the SnO_(2)lattice resulting in an exceptionally low resistivity of 2.028×10^(-3)Ω·cm along with a high carrier concentration of 1.398×10^(20)cm^(-3)and carrier mobility of 22.02 cm^(2)/V·s.

关键词： exceptional resistivity substitute

热压缩同时提高挤压镁-锰-锌合金的强度和热导率(英文)

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Transactions of Nonferrous Metals Society of China 2024年

作者：刘海峰杨续跃张宇修 Hiromi Nagaumi 赵明纯石智勇 andrej Atrens School of Mechanical & Mining Engineering， University of Queensland Brisbane 中南大学材料科学与工程学院苏州大学钢铁学院

在这项研究中，对挤压镁-锰-锌合金进行了热压缩处理。合金在 150°C以 15:1 的挤压比挤压，然后沿着挤压方向以真应变为0.9进行热压缩。通过光学显微镜、扫描电子显微镜、电子背散射衍射和透射电子显微镜研究了挤压态和热压缩态Mg-Mn-Z... 详细信息

在这项研究中，对挤压镁-锰-锌合金进行了热压缩处理。合金在 150°C以 15:1 的挤压比挤压，然后沿着挤压方向以真应变为0.9进行热压缩。通过光学显微镜、扫描电子显微镜、电子背散射衍射和透射电子显微镜研究了挤压态和热压缩态Mg-Mn-Zn合金的微观结构、机械性能和热导率。旨在通过获得均匀、细小的显微结构、以及降低织构强度，同时提高强度和导热性。屈服强度（YS）、极限拉伸强度（UTS）和伸长率（EL）得到了显著的提高，分别提高了77%、53%和10%。热导率也得到了显著的提高，从111 W/(m·K)提高到了125 W/(m·K)。本研究阐明了热压缩改善性能的机理，为开发具有优良热性能和力学性能的镁合金提供了一条有前景的途径。

关键词：镁合金热压缩强度热导率

Nitrous oxide emissions in nonflooding period from fallow paddy fields

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Journal of Environmental Sciences 2008年第11期20卷 1335-1340页

作者： hari K Pant Department of Environmental Geographic and Geological Sciences Lehman College of the City University of New York250 Bedford Park Blvd WestBronxNY 10468US

The study was conducted to investigate the N2O emissions and dissolved N2O in the leachate during the nonflooding period in nongrowing paddy *** kinds of paddy soils were repacked to soil columns and were supersaturated with water initially and dried gradually in a greenhouse to attain the N2O emissions flux during the *** with the texture of silty clay-loam (Q and H) produced cracks during the drying of soil,but soil with the texture of silty loam (X) did not form the *** s...

关键词： nitrous oxide emission cracks soil drying paddy soil

Multi-Objective Optimization of Fused Deposition Modeling for Mechanical Properties of Biopolymer Parts Using the Grey-Taguchi Method

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Chinese Journal of Mechanical Engineering 2023年第1期36卷 51-64页

作者： Kapil Kumar hari Singh Department of Mechanical Engineering National Institute of TechnologyKurukshetra136119India

The urgent need to develop customized functional products only possible by 3D printing had realized when faced with the unavailability of medical devices like surgical instruments during the coronavirus-19 disease and the ondemand necessity to perform surgery during space *** have recently been the most appropriate option for fabricating surgical instruments via 3D printing in terms of cheaper and faster *** all 3D printing techniques,fused deposition modelling(FDM)is a low-cost and more rapid printing *** article proposes the fabrication of surgical instruments,namely,forceps and hemostat using the fused deposition modeling(FDM)*** mechanical properties are the only indicator to judge the quality of the functional *** mechanical properties of FDM-processed parts depend on various process *** parameters are layer height,infill pattern,top/bottom pattern,number of top/bottom layers,infill density,flow,number of shells,printing temperature,build plate temperature,printing speed,and fan *** strength and modulus of elasticity are chosen as evaluation indexes to ascertain the mechanical properties of polylactic acid(PLA)parts printed by *** experiments have performed through Taguchi’s L27orthogonal array(OA).Variance analysis(ANOVA)ascertains the significance of the process parameters and their percent contributions to the evaluation ***,as a multiobjective optimization technique,grey relational analysis(GRA)obtains an optimal set of FDM process parameters to fabricate the best parts with comprehensive mechanical *** electron microscopy(SEM)examines the types of defects and strong bonding between *** proposed research ensures the successful fabrication of functional surgical tools with substantial ultimate tensile strength(42.6 MPa)and modulus of elasticity(3274 MPa).

关键词： Fused deposition modeling Mechanical properties Taguchi method ANOVA Grey relational analysis SEM

Recent development of supported monometallic gold as heterogeneous catalyst for selective liquid phase hydrogenation reactions

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Chinese Journal of Chemical Engineering 2015年第2期23卷 327-336页

作者： Thushara Kandaramath hari Zahira Yaakob Department of Chemical and Process Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia

The great potential of gold catalysts for chemical conversions in both industrial and environmental concerns has attracted increasing interest in many fields of *** nanoparticles supported by metal oxides with high surface area have been recognized as highly efficient and effective green heterogeneous catalyst even at room temperature under normal reaction conditions,in gas and liquid phase *** the present review,we discuss the recent development of heterogeneous,supported monometallic gold catalysts for organic transformations emphasizing mainly liquid phase hydrogenation *** on the catalytic synthesis procedures and the promoting effect of other noble metals are omitted since they are already worked *** of heterogeneous,supported monometallic catalysts for chemoselective hydrogenations in liquid phase are studied including potential articles during the period 2000–2013.

关键词： Supported gold catalyst Liquid phase reaction Hydrogenation reaction Chemoselectivity