检索结果-南通市图书馆

Product and Commutators of Pseudo-differential Operators Involving Fourier–Jacobi Transform

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Communications in Mathematics and Statistics 2022年第1期10卷 67-84页

作者： akhilesh prasad.manoj kumar singh Department of Applied Mathematics Indian Institute of Technology(Indian School of Mines)Dhanbad 826004India Department of Mathematics St.Xavier’s CollegeRanchi UniversityRanchi 834001India

The purpose of this paper is to define a new symbol classand discuss the theory of two different pseudo-differential operators(p.d.o.)involving Fourier–Jacobi transform associated with a single symbol in.We also derive boundedness results for p.d.o.’s in Sobolev type ***-differential operator is developed using the product of ***,norm inequality for commutators between two pseudo-differential operators is obtained.

关键词： Jacobi functions Fourier-Jacobi transform Sobolev space Pseudo-differential operators

Information hiding with adaptive steganography based on novel fuzzy edge identification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2019年第2期15卷 162-169页

作者： Sanjeev kumar Amarpal singh manoj kumar I.K.G Punjab Technical University Department of ECE Beant College of Engineering & Technology DAV Institute of Engineering & Technology

The evolution in communication techniques has created wide threats for crucial information transfer through a communication channel. Covert communication with steganography is a skill of concealing secret information within cover object and hence shields the data theft over rapidly growing ***, diverse steganography techniques using edge identification have been proposed in *** methods however utilize certain pixels in the cover image for inserting edge information,resulting in significant deformation. The conventional edge detection method limits the deployment of edge detection in steganography as concealing the information would introduce some variations to the cover image. Hence inserting data in pixel areas recognized by existing conventional edge detection techniques like canny cannot ensure the recognition of the exact edge locations for the cover and stego images. In this paper, an Adaptive steganography method based on novel fuzzy edge identification is proposed. The method proposed is proficient of estimating the precise edge areas of a cover image and also ensures the exact edge location after embedding the secret message. Experimental results reveal that the technique has attained good imperceptibility compared to the Hayat AI-Dmour and Ahmed AIAni Edge XOR method in spatial domain.

关键词： Information security Adaptive steganography Fuzzy edge detection Pattern recognition

Grid Tied Solar PV System with Power Quality Enhancement Using Adaptive Generalized Maximum Versoria Criterion

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2023年第2期9卷 722-732页

作者： manoj Badoni Alka singh Ankit kumar singh Hemant Saxena Rajeev kumar Delhi Technological University Delhi 110042India.A.K.Singh is with Netaji Subhas University of TechnologyDelhi 110078India Netaji Subhas University of Technology Delhi 110078India Electrical and Electronics Engineering Department KIET Group of InstitutionsGhaziabadIndia Electrical Engineering Department Jamia Millia IslamiaNew DelhiIndia

A three phase grid tied solar photovoltaic(PV)system with power quality compensation features is presented in this *** system is used to transfer power generated from a solar PV array to feed linear and nonlinear loads along with compensation for several power quality(PQ)issues,such as harmonics,redundant reactive power and load *** generated DC power from the PV array is converted into AC by implementing a three-phase voltage source converter(VSC).In order to transfer active power and mitigate PQ problems,an efficient control technique is required for the grid tied solar PV *** study presents the use of an adaptive generalized maximum Versoria criterion(AGMVC)controller for VSC used in a solar PV energy conversion *** utilization of the solar PV array is accomplished by using the Perturb and Observe based maximum power point tracking(MPPT)*** experimental setup of the grid integrated PV system is implemented in the laboratory using an IGBT based VSC and DSP(dSPACE DS-1202).The performance of the AGMVC control technique is verified experimentally using laboratory *** control technique is compared with different conventional controllers,such as synchronous reference frame theory(SRFT)and instantaneous reactive power theory(IRPT)along with recently developed weight-based controllers viz.,least mean square(LMS),least mean mixed norm(LMMN)and normalized kernel least mean fourth-neural network(NKLMFNN).Numerous terms,such as fundamental weight convergence,steady state error,computational complexity,phase lock loop(PLL)requirement and harmonic compensation capability,are considered for comparison purposes of AGMVC with the above listed control *** system performance is verified according to the IEEE-519 standard.

关键词： Harmonics maximum versoria criterion power factor corection(PFC) solar photovoltaic

Designing a Mini-Core Collection Effectively Representing 3004 Diverse Rice Accessions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant Communications 2020年第5期1卷 141-154页

作者： Angad kumar Shivendra kumar Kajol B.M.singh manoj prasad Jitendra K.Thakur Plant Mediator Lab National Institute of Plant Genome ResearchAruna Asaf Ali MargNew Delhi 110067India

Genetic diversity provides the foundation for plant breeding and genetic *** 3000 rice genomes were recently sequenced as part of the 3K Rice Genome(3KRG)*** added four additional Indian rice accessions to create a panel of 3004 ***,such a large collection of germplasm is difficult to preserve and *** construction of core and mini-core collections is an efficient method for the management of genetic *** this study,we developed a mini-core comprising 520 accessions that captured most of the SNPs and represented all of the phenotypes and geographic regions from the original *** mini-core was validated using different statistical analyses and contained representatives from all major rice groups,including japonica,indica,aus/boro,and aromatic/*** association analyses of the mini-core panel efficiently reproduced the marker–trait associations identified in the original *** analysis validated the utility of the mini-core *** the current era with many ongoing large-scale sequencing projects,such a strategy for mini-core design should be useful in many *** rice mini-core collection developed in this study would be valuable for agronomic trait evaluation and useful for rice improvement via marker-assisted molecular breeding.

关键词： rice mini-core SNPs GWAS 3KRG agronomic trait

Design of a 2-DOF-PID controller using an improved sine-cosine algorithm for load frequency control of a three-area system with nonlinearities

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Protection and Control of Modern Power Systems 2022年第1期7卷 490-507页

作者： Neelesh kumar Gupta manoj kumar Kar Arun kumar singh Department of Electrical Engineering NIT JamshedpurJamshedpurJharkhand 831014India

This paper proposes an improved sine-cosine algorithm(ISCA)based 2-DOF-PID controller for load frequency control.A three-area test system is built for study,while some physical constraints(nonlinearities)are considered for the investigation of a realistic power *** proposed method is used as the parameter optimizer of the LFC control-ler in different *** 2-DOF-PID controllers are used because of their capability of fast disturbance rejection without significant increase of overshoot in set-point *** 2-DOF-PID controllers’efficacy is observed by examining the responses with the outcomes obtained with PID and FOPID *** simulation results with the suggested scheme are correlated with some of the existing algorithms,such as SCA,SSA,ALO,and PSO in three dif-ferent scenarios,i.e.,a disturbance in two areas,in three areas,and in the presence of physical *** addition,the study is extended to a four-area power *** analysis is performed using the Wilcoxon Sign Rank Test(WSRT)on 20 independent *** confirms the supremacy of the proposed method.

关键词： 2-DOF-PID FOPID Load frequency control WSRT Statistical analysis Improved sine-cosine algorithm

Numerical solution of micropolar fluid flow via stretchable surface with chemical reaction and melting heat transfer using Keller-Box method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Propulsion and Power Research 2021年第2期10卷 194-207页

作者： Khilap singh Alok kumar Pandey manoj kumar Department of Mathematics Statistics and Computer ScienceG.B.Pant University of Agriculture and TechnologyPantnagarUttarakhand263145India Department of Mathematics Graphic Era Deemed to be UniversityDehradunUttarakhand248002India

The main theme of this research is to find the numerical results of stagnation point flow of micropolar fluid over a porous stretchable surface due to the physical effects of internal heat generation/absorption,melting heat transfer and chemical reaction via Keller-Box method(KBM).The graphs and tables are depicted and explained for various embedded *** range of melting heat transfer parameter is 0≤M≤3,the range of chemical reaction parameter is 0≤K_(r)≤1 whereas the values of space-temperature dependent heat source/sink parameters lies in-0:4≤Q≤0:4 and-2≤Q*≤*** upshots of the current problem illustrate that at fluid-solid interface,rate of HMT(heat and mass transfer)declined on escalating the values of stretching ***,as the values of internal heat source/sink parameter increases,heat transfer rate declines at fluid-solid interface.

关键词： Chemical reaction Implicit finite difference Keller-Box method(KBM) Internal heat generation/absorption Heat and mass transfer(HMT) Melting heat transfer Porous medium

Slip flow of micropolar fluid through a permeable wedge due to the effects of chemical reaction and heat source/sink with Hall and ionslip currents:an analytic approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Propulsion and Power Research 2020年第3期9卷 289-303页

作者： Khilap singh Alok kumar Pandey manoj kumar Department of Mathematics Statisticsand Computer ScienceG.B.Pant University of Agriculture and TechnologyPantnagar263145UttarakhandIndia Department of Mathematics Graphic Era Deemed to Be UniversityDehradun248002UttarakhandIndia

This study focuses on the combined impact of heat source/sink and chemical reaction on slip flow of micropolar fluid through a permeable wedge in the existence of Hall and ion-slip *** governing highly non-lincar PDEs were altered into a set of non-linear coupled ODEs by using similarity *** transformation method(DTM)has been implemented in transformed ODEs *** comparison with previous literatures was performed and the data of this study was found to be in accordance with each *** analytical solutions for skin-friction coefficients(surface drag forces),Nussclt and Sherwood numbers are depicted through graphs and *** study of boundary layer flow over a wedge surface plays an imperative role in the field of aerodynamics,heat exchanger,ground water pollution and geothermal system etc.

关键词： Chemical reaction Differential transformation method(DTM) Hall current and ion slip Heat source/sink Micropolar fluid Slip velocity

Rice Bran Oil: Emerging Trends in Extraction, Health Benefit, and Its Industrial Application

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rice science 2021年第3期28卷 217-232页

作者： Sneh PUNIA manoj kumar Anil kumar SIROHA Sukhvinder singh PUREWAL Department of Food Science Chaudhary Devi Lal UniversitySirsaHaryana 125055India Chemical and Biochemical Processing Division ICAR-Central Institute for Research on Cotton TechnologyMumbai 400019India Department of Food Science and Technology Maharaja Ranjit Singh Punjab Technical UniversityBathinda 151001India

Rice bran oil(RBO)is unique among edible vegetable oils because of its unique fatty acid composition,phenolic compound(γ-oryzanol,ferulic acid)and vitamin E(tocopherol and tocotrienol).It has become a great choice of cooking oil because of its very high burning point,neutral taste and delicate ***-conventional methods of RBO extraction are more efficient and environmentally friendly than conventional extraction *** in RBO extraction using innovative extraction strategies like super/sub-critical CO_(2),microwave-assisted,subcritical H_(2)O,enzyme-assisted aqueous and ultrasoundassisted aqueous extraction methods have proven to significantly improve the yields along with improved nutritional profile of *** compositions and strategies for stabilization of RBO are well *** constituents are present in the RBO contribute to antioxidative,anti-inflammatory,antimicrobial,antidiabetic and anti-cancerous properties to *** has helped RBO to become an important substrate for the application in food(cooking oil,milk product and meat product)and non-food industries(polymer,lubricant,biofuel,structural lipid and cosmetic).This review provided comprehensive information on RBO extraction methods,oil stabilization,existing applications and health benefits.

关键词： rice bran oil extraction functionalization stabilization food/non-food application fatty acid

Phenazine-based supramolecular photosensitizing assemblies:A“smart”selectivity control on catalytic activity of Pd(Ⅱ)nanoparticles

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

聚集体(英文)

聚集体(英文) 2023年第1期4卷 173-183页

作者： Aditya singh manoj kumar Vandana Bhalla Department of Chemistry UGC Sponsored-Centre of Advance Studies-ⅡGuru Nanak Dev UniversityAmritsarPunjabIndia

Photosensitizing supramolecular assemblies based on a phenazine derivative(PPA)have been developed,which show a strong affinity toward Pd2+ions to generate supramolecular ensemble PPA@Pd nanoparticles(NPs).The PPA@Pd NPs catalyse the Suzuki cross-coupled reaction under mild conditions(aerial conditions,mixed aqueous media,and visible light radiations).Although PPA@Pd NPs exhibit a strong affinity for arylboronic acid and could catalyse homocoupling of arylboronic acid,the preference of PPA assemblies for aryl halide directed the course of reactions toward the formation of cross-coupled *** electron-rich PPA assemblies not only facilitate the oxidative addition step through photoinduced electron transfer to Pd^(2+)ions but also bring the reactants closer to the catalytic sites by selective interactions with aryl halides in the presence of arylboronic acid under visible light *** efficiency of PPA@Pd NPs to catalyse the Suzuki crosscoupled reaction has been demonstrated for the synthesis of unsymmetrically substituted terphenyl derivatives.

关键词： ensemble homocoupling phenazine photosensitizing supramolecular assemblies Suzuki cross-coupled