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Power Quality Improvement and Signal conditioning of PV Array and grid Interfaced Off-board charger for Electric Vehicles with V2g and g2V capabilities

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chinese Journal of Electrical Engineering 2023年第4期9卷 132-143页

作者： Shailendra Kumar Tapesh Upadhyay om Hari gupta Department of Electrical Engineering Indian Institute of TechnologyBhilai 492015India Department of Electrical Engineering Maulana Azad National Institute of Technology(MANIT)Bhopal 462003India Department of Electrical Engineering National Institute of TechnologyJamshedpur 831014India

In this work,we present a photovoltaic(PV)-based off-board charging system integrated with the grid using a voltage source converter(Vsc).The control of the grid-tied off-board charger is derived from the joint logarithmic hyperbolic cosine robust sparse adaptive filter(JLHcAF)*** algorithm effectively tracks the fundamental component of the load current in a short duration,providing a good dynamic *** to its robustness against impulsive interference,the JLHcAF outperforms other sparsity-aware robust algorithms The cascaded proportional-integral(PI)controller is used to control the bidirectional buck-boost converter for electric vehicle(EV)charging/discharging,which acts in buck operation if the EV is being charged and in boost operation if it is *** reference Dc link voltage for the controller is derived by using adaptive MPPT *** bidirectional properties of the system enable various functions,including grid-to-vehicle(g2V),vehicle-to-grid(V2g),PV source-to-grid(PV2g),vehicle-to-home(V2H),and PV source-to-vehicle(PV2V)***,the system can supply power to critical nonlinear *** control strategy ensures compliance with the power quality requirements set by the IEEE standard,as demonstrated in the *** validate the effectiveness of the proposed system,we conducted tests under dynamic conditions by disconnecting and reconnecting household ***,the off-board charging system was subjected to actual conditions,such as variations in solar PV insolation,and its steady-state performance was evaluated through simulation and laboratory experimental *** results,including total harmonic distortion(THD),support the validation of the developed charging system.

关键词： grid to vehicle(g2V) vehicle to grid(V2g) off-board charger(OBc) power quality total harmonic distortion(THD) electrical vehicles(EVs)

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Partial sums of generalized harmonic starlike univalent functions generated by a (p,q)−ruscheweyh-type harmonic differential operator

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Applied Mathematics(A Journal of chinese Universities) 2024年第4期39卷 584-595页

作者： om P Ahuja Asena cetinkaya raj Kumar Department of Mathematical sciences Kent State UniversityOhio44021USA Department of of Mathematics and computer science Istanbul Kultur UniversityIstanbulTurkey Department of of Mathematics DAV UniversityJalandharIndia

Let H denote the class of complex-valued harmonic functions f defined in the open unit disc D and normalized by f(0)=fz(0)-1=*** this paper,we define a new generalized subclass of H associated with the(p,q)-ruscheweyh-type harmonic differential operator in *** first obtain a sufficient coefficient condition that guarantees that a function f in H is sense-preserving harmonic univalent in D and belongs to the aforementioned *** this coefficient condition,we then examine ratios of partial sums of f in *** all cases the results are *** addition,the results so obtained generalize the related works of some authors,and many other new results are obtained.

关键词： (p,q)-calculus (p,q)-derivative operator q-calculus q-derivative operator (p,q)-ruscheweyhtype harmonic differential operator partial sums coefficient estimate

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On Almost Armendariz ring

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Algebra colloquium 2020年第2期27卷 199-212页

作者： om Prakash Sushma Singh K.P.Shum Department of Mathematics Indian Institute of Technology Patna PatnaBihar 801106India Department of Mathematics John Fulton Center The Chinese University of Hong KongShatinN.T.Hong KongChina

In this paper,we introduce the notion of an almost Armendariz ring,which is a generalization of an Armendariz ring,and discuss some of its *** has been found that every almost Armendariz ring is weak Armendariz but the converse is not *** prove that a ring r is almost Armendariz if and only if r[x]is almost *** is also shown th at if r/I is an almost Armendariz ring and I is a semicommutative ideal,then H is an almost Armendariz ***,the class of minimal non-commutative almost Armendariz rings is completely determined,up to isomorphism(minimal means having smallest cardinality).

关键词： Armendariz ring almost Armendariz ring weak Armendariz ring lower nil radical reduced ring semicommutative ring

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Non-coding rNAs:the new central dogma of cancer biology

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science china(Life sciences) 2021年第1期64卷 22-50页

作者： Phei er Saw Xiaoding Xu Jianing chen er-Wei Song guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and gene regulation Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou510120China Breast Tumor center Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou510120China

The central dogma of molecular biology states that the functions of rNA revolve around protein *** the last decade,most researches were geared towards characterization of rNAs as intermediaries in protein translation,namely,messenger rNAs(mrNAs)as temporary copies of genetic information,ribosomal rNAs(rrNAs)as a main component of ribosome,or translators of codon sequence(t rNAs).The statistical reality,however,is that these processes account for less than 2%of the genome,and insufficiently explain the functionality of 98%of transcribed *** discoveries have unveiled thousands of unique non-coding rNAs(ncrNAs)and shifted the perception of them from being"junk"transcriptional products to"yet to be elucidated"—and potentially monumentally important—*** ncrNAs are now known as key regulators in various networks in which they could lead to specific cellular responses and *** major cancers,ncrNAs have been identified as both oncogenic drivers and tumor suppressors,indicating a complex regulatory network among these ***,we provide a comprehensive review of the various ncrNAs and their functional roles in cancer,and the pre-clinical and clinical development of nc rNA-based therapeutics.A deeper understanding of ncrNAs could facilitate better design of personalized therapeutics.

关键词： non-coding rNAs anti-cancer therapeutics personalized intervention mirNA lncrNA circrNA

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A node-based smoothed point interpolation method for dynamic analysis of rotating flexible beams

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Acta Mechanica Sinica 2018年第2期34卷 409-420页

作者： c.F.Du D.g.Zhang L.Li g.r.Liu college of civil science and Engineering Yangzhou University school of sciences Nanjing University of Science and Technology school of Aerospace Systems University of Cincinnati

We proposed a mesh-free method, the called node-based smoothed point interpolation method(NS-PIM),for dynamic analysis of rotating beams. A gradient smoothing technique is used, and the requirements on the consistence of the displacement functions are further weakened. In static problems, the beams with three types of boundary conditions are analyzed, and the results are compared with the exact solution, which shows the effectiveness of this method and can provide an upper bound solution for the *** means that the NS-PIM makes the system soften. The NS-PIM is then further extended for solving a rigid-flexible coupled system dynamics problem, considering a rotating flexible cantilever beam. In this case, the rotating flexible cantilever beam considers not only the transverse deformations,but also the longitudinal deformations. The rigid-flexible coupled dynamic equations of the system are derived via employing Lagrange’s equations of the second type. Simulation results of the NS-PIM are compared with those obtained using finite element method(FEM) and assumed mode method. It is found that compared with FEM, the NS-PIM has anti-ill solving ability under the same calculation conditions.

关键词： Meshfree method NS-PIM rigid-flexible coupled system dynamics rotating beams Dynamic response

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New method for rekindling the explosive waves in Maxwellian space plasmas

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Plasma science and Technology 2020年第12期22卷 48-58页

作者： g c DAS Kalikadas road Byelane HazraparaCoochbehar-736101West BengalIndia

Our interest is to study the nonlinear wave phenomena in complex plasma constituents with Maxwellian electrons and ions. The main aim is to use a new method known as the(g′/g)method to exhibit the effects of dust charge fluctuations on the evolution of nonlinear waves. The coherent features of the shock and solitary waves along with the generation of high-energy waves have been amplified through the solution of the Korteweg–de Vries–Burgers equation,and the different natures of the waves were found successfully. results are discussed graphically with the thoughtful choice of typical plasma parameters from different space plasma environments, exactly those found in cosmic dusty plasmas laden in ionospheric auroral region,radial spokes of Saturn's rings, planetary nebulae and solar F-corona region. All conclusions are in good accordance with the actual occurrences and could be of interest to further investigations of space. Moreover, the applicability of the present method is hoped to be a great enhancement by its use as ingenious mechanism used to evaluate the soliton dynamics and Burgers shock waves.

关键词： Maxwellian complex plasma nonlinear waves soliton and shock propagation (g′/g)method space plasmas

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Jacobi Elliptic Function Solutions of Some Nonlinear Evolution Equations

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communications in Theoretical Physics 2006年第5X期46卷 804-806页

作者： YE cai-er Department of Mathematics Zhejiang Forestry University Lin'an 311300 China

In this letter, the modified Jacob/elliptic function expansion method is extended to solve M-coupled KdV equation, M-coupled Ito equation, vKdV equation, and AKNS equation. Some new Jacob/elliptic function solutions are obtained by using Mathematica. When the modulus m→1, those periodic solutions degenerate as the corresponding soliton solutions.

关键词： KdV equation Ito equation vKdV equation AKNS equation exact solution

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New Exact Solutions of Multi-component mKdV Equation

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communications in Theoretical Physics 2006年第5期45卷 777-780页

作者： YE cai-er Department of Mathematics Zhejiang Forestry College Lin＇an 311300 China

In this paper, new Jacobi elliptic function solutions of multi-component mKdV equation are obtained directly in a unified way. When the modulus m → 1, those periodic solutions degenerate as the corresponding hyperbolic function solutions. Then, to the three-component mKdV equation, five types of effective solution are presented in detail.

关键词： multi-component mKdV equation exact solution Jacobi elliptic function hyperbolic function

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Antidiabetic,hypolipidemic and histopathological analysis of Dillenia indica (L.) leaves extract on alloxan induced diabetic rats

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Asian Pacific Journal of Tropical Medicine 2011年第5期4卷 347-352页

作者： Sunil Kumar Vipin Kumar om Prakash Institute of Pharmaceutical sciences Kurukshetra UniversityHaryanaIndia

Objective:To investigate antidiabetic,hypolipidemic histopathological analysis of Dillenia indica(***) methanolic leaves(DIME) extract in alloxan induced diabetic rat by administering oral doses(250 and 500 mg/kg body weight).Methods:Blood glucose levels were measured using blood glucose test strips with elegance glucometer on weekly intervals till the end of study(i.e.3 weeks).Other parameters *** profile,renal profile and total lipid levels were determined in normal and alloxan induced diabetic rats after oral administration of the extract for 21 *** changes in diabetic rat organs(pancreas,liver and kidney) were also observed after extract treatment results:Daily oral administration DIME(250 and 500 mg/kg body weight) and glibenclamide(10 mg/kg) showed beneficial effects on blood glucose level (Proving kidney,liver functions and hyperlipidaemia due to diabetes. The extract treatment also showed to enhanced serum insulin level and body weight of diabetic rats as compared to diabetic control ***,the extract has a favorable effect on the histopathological changes of the pancreas,liver and kidney in alloxan induced diabetes. conclusions:*** possess antidiabetic property as well improve body weight,liver profile, renal profile and total lipid *** has also favorable effect to inhibit the histopathological changes of the pancreas and kidney in alloxan induced diabetes.

关键词： Antidiabetic Dillenia indica Hypolipidemic rat Serum cholesterol

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MHD flow of a visco-elastic fluid through a porous medium between infinite parallel plates with time dependent suction

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Journal of Hydrodynamics 2015年第5期27卷 738-747页

作者： BAAg S. AcHArYA M.r. DASH g.c. MISHrA S.r. Department of Physics College of Basic Science and HumanitiesOUAT Department of Mathematics ITER SOA University

This work provides a comprehensive theoretical analysis of MHD unsteady free convection viscoelastic fluid flow through a porous medium. The medium is treated as incompressible and optically transparent. The flow of the fluid is initiated by shearing action of the moving wall with time dependent suction. radiative heat flow is considered in temperature equation. The coupled nonlinear problem has been solved asymptotically. Approximate solutions have been obtained for the mean velocity, mean temperature using multi parameter perturbation technique. The originality of the present study is to investigate the effect of viscoelastic property of the fluid（Walters B？ model） on the flow and heat transfer phenomena when the flow is permeated through a porous medium with uniform porous matrix subject to transverse magnetic field and time dependent fluctuative suction at the boundary surface. The case of viscous flow has been discussed as a particular case on comparison with the result reported earlier and it is in good agreement. Flow reversal is indicated incase of viscoelastic fluid with high heat capacity in the presence of magnetic field. The higher cooling of the plate in case of viscoelastic flow also causes a flow reversal.

关键词： viscoelastic liquid porosity radiation parameter time dependent suction

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