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Application of Statistical Tools for Data Analysis and Interpretation in Rice Plant Pathology

Rice science 2018年第1期25卷 1-18页

作者： Parsuram NAYAK Arup kumar MUKHERJEE Elssa PANDIT sharat kumar pradhan Indian Council of Agricultural Research National Rice Research Institute

There has been a significant advancement in the application of statistical tools in plant pathology during the past four decades. These tools include multivariate analysis of disease dynamics involving principal component analysis, cluster analysis, factor analysis, pattern analysis, discriminant analysis, multivariate analysis of variance, correspondence analysis, canonical correlation analysis, redundancy analysis, genetic diversity analysis, and stability analysis, which involve in joint regression, additive main effects and multiplicative interactions, and genotype-by-environment interaction biplot analysis. The advanced statistical tools, such as non-parametric analysis of disease association, meta-analysis, Bayesian analysis, and decision theory, take an important place in analysis of disease dynamics. Disease forecasting methods by simulation models for plant diseases have a great potentiality in practical disease control strategies. Common mathematical tools such as monomolecular, exponential, logistic, Gompertz and linked differential equations take an important place in growth curve analysis of disease epidemics. The highly informative means of displaying a range of numerical data through construction of box and whisker plots has been suggested. The probable applications of recent advanced tools of linear and non-linear mixed models like the linear mixed model, generalized linear model, and generalized linear mixed models have been presented. The most recent technologies such as micro-array analysis, though cost effective, provide estimates of gene expressions for thousands of genes simultaneously and need attention by the molecular biologists. Some of these advanced tools can be well applied in different branches of rice research, including crop improvement, crop production, crop protection, social sciences as well as agricultural engineering. The rice research scientists should take advantage of these new opportunities adequately in adoption of the new h

关键词： statistical tool plant pathology data analysis multivariate analysis non-parametric analysis micro-array analysis decision theory plant disease epidemics rice

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Genetic Relationship and Structure Analysis of Root Growth Angle for Improvement of Drought Avoidance in Early and Mid-Early Maturing Rice Genotypes

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Rice science 2020年第2期27卷 124-132页

作者： Elssa PANDIT Rajendra kumar PANDA Auromeera SAHOO Dipti Ranjan PANI sharat kumar pradhan Crop Improvement Division ICAR-National Rice Research InstituteCuttackOdisha 753006India Orissa University of Agriculture&Technology Bhubaneswar 751003India ICAR-National Bureau of Plant Genetic Resource Base Center National Rice Research InstituteCuttackOdisha 753006India

Deeper rooting 1(Dro1)and Deeper rooting 2(Dro2)are the QTLs that contribute considerably to root growth angle assisting in deeper rooting of rice *** the present study,a set of 348 genotypes were shortlisted from rice germplasm based on root angle *** results of the germplasm lines under drought stress identified 25 drought tolerant donor lines based on leaf rolling,leaf drying,spikelet fertility and single plant yield.A panel containing 101 genotypes was constituted based on screening results and genotyped using Dro1 and Dro2 *** software categorized the genotypes into four sub-populations with different fixation index values for root growth *** clustering analysis and principal coordinate analysis could differentiate the genotypes with or without deeper rooting *** dendrogram constructed based on the molecular screening for deep rooting QTLs showed clear distinction between the rainfed upland cultivars and irrigated *** genotypes,namely Dular,Tepiboro,Surjamukhi,Bamawpyan,N22,Dinorado,Karni,Kusuma,Bowdel,Lalsankari and Laxmikajal,possessed both the QTLs,whereas 67 genotypes possessed only *** average angle of Dro positive genotypes ranged from 82.7°to 89.7°.These genotypes possessing the deeper rooting QTLs can be taken as donor lines to be used in marker-assisted breeding programs.

关键词： root growth angle Dro1 Dro2 deeper rooting upland rice drought avoidance

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Translocator protein and neurodegeneration: insights from Alzheimer’s disease

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Neural Regeneration Research 2025年第4期20卷 1090-1091页

作者： Arpit kumar pradhan Rainer Rupprecht Gerhard Rammes Klinik für Anaesthesiologie und Intensivmedizin der Technischen Universität München Klinikum rechts der IsarMunichGermany Graduate School of Systemic Neurosciences Ludwig-Maximilians-Universität MünchenMartinsriedGermany Department of Psychiatry and Psychotherapy University RegensburgRegensburgGermany

The 18 kDa translocator protein(TSPO)located on the outer mitochondrial membrane regulates several key cellular processes including mitochondrial homeostasis,cholesterol transport,apoptosis,cell proliferation,and maintenance of mitochondrial health(Rupprecht et al.,2022,2023).TSPO is expressed in both peripheral organs and the central nervous system,with a more pronounced expression in tissues that produce *** main reason why TSPO has garnered so much attention is because it plays a key role in neurosteroidogenesis by transferring cholesterol from the outer to the inner mitochondrial membrane,which is the rate-limiting step in neurosteroid synthesis.A cholesterol-recognizing amino acid consensus domain has been identified in the cytosolic C terminus of the TSPO protein by both in vitro and site-directed mutagenesis experiments(Li et al.,2001).However,the role of TSPO in the process of neurosteroid synthesis has been challenged by several studies,particularly TSPO knockout models,which suggest that TSPO removal does not affect the phenotype or the system’s viability(Tu et al.,2014).However,ligands targeting TSPO have been shown to enhance levels of neurosteroids which suggests that neurosteroidogenesis is one of the major functional roles mediated by the TSPO protein.

关键词： cholesterol organs

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H_(∞) Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay

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Journal of Modern Power Systems and Clean Energy 2021年第6期9卷 1468-1477页

作者： Subrat kumar pradhan Dushmanta kumar Das Department of Electrical and Electronics Engineering National Institute of Technology Nagaland

This paper proposes a delay discretization based H∞load frequency control strategy for interconnected power *** effect of time delay is considered in the system for the design of stabilizing *** improve the tolerable delay margin of the system,a two-term state feedback controller structure is *** controller requires delayed state information as control *** the proposed approach,the amount of delay introduced in the state of the system,i.e.,artificial delay,for taking control action is assumed to be *** approach is based on the discretization of this delay *** order to define a simple Lyapunov-Krasovskii(LK)function for each of the discretized interval,a stabilization criterion is developed in such a way that a single one satisfies the requirement of all the *** developed criterion is computationally simple and efficient.

关键词： Interconnected power system load frequency control(LFC) state feedback controller time delay

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Position Control of a Flexible Manipulator Using a New Nonlinear Self-Tuning PID Controller

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IEEE/CAA Journal of Automatica Sinica 2020年第1期7卷 136-149页

作者： Santanu kumar pradhan Bidyadhar Subudhi School of Electrical Sciences National Institute of Science and Technology BerhampurOdisha 761008India School of Electrical Sciences Indian Institute of TechnologyFarmagudiGoa 403401India

In this paper, a new nonlinear self-tuning PID controller(NSPIDC) is proposed to control the joint position and link deflection of a flexible-link manipulator(FLM) while it is subjected to carry different payloads. Since, payload is a critical parameter of the FLM whose variation greatly influences the controller performance. The proposed controller guarantees stability under change in payload by attenuating the non-modeled higher order dynamics using a new nonlinear autoregressive moving average with exogenous-input(NARMAX) model of the FLM. The parameters of the FLM are identified on-line using recursive least square(RLS) algorithm and using minimum variance control(MVC) laws the control parameters are updated in real-time. This proposed NSPID controller has been implemented in real-time on an experimental set-up. The joint tracking and link deflection performances of the proposed adaptive controller are compared with that of a popular direct adaptive controller(DAC). From the obtained results, it is confirmed that the proposed controller exhibits improved performance over the DAC both in terms of accurate position tracking and quick damping of link deflections when subjected to variable payloads.

关键词： Flexible-link manipulator position control self-tuning control NARMAX trajectory tracking

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Sliding mode controller design via delay-dependent H_(∞) stabilization criterion for load frequency regulation

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Protection and Control of Modern Power Systems 2023年第3期8卷 225-251页

作者： Subrat kumar pradhan Dushmanta kumar Das Department of Electrical Engineering Indira Gandhi Institute of TechnologySarangDhenkanal 759146India Department of Electrical and Electronics Engineering National Institute of Technology NagalandDimapur 797103India

This work presents a control approach based on sliding-mode-control(SMC)to design robust H∞state feedback controllers for load frequency regulation of delayed interconnected power system(IPS)with parametric *** both state feedback control strategy and delayed feedback control strategy,two SMC laws are *** proposed control laws are designed to improve the stability and disturbance rejection performance of delayed IPS,while stabilization criteria in the form of linear matrix inequality are derived by choosing a Lyapunov–Krasovskii *** artificial time-delay is incorporated in the control law design of the delayed feedback control struc-ture to enhance the controller performance.A numerical example is considered to study the control performance of the proposed controllers and simulation results are provided to observe the dynamic response of the IPS.

关键词： Sliding mode control Delay-dependent stabilization H∞performance Time-delay Load frequency control

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Understanding the behavior of recycled aggregate concrete by using thermogravimetric analysis

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Frontiers of Structural and Civil Engineering 2020年第6期14卷 1561-1572页

作者： Subhasis pradhan Shailendra kumar Sudhirkumar V.BARAI Department of Civil Engineering Indian Institute of Technology KharagpurWest Bengal 721302India Department of Civil Engineering Guru Ghasidas Vishwavidyalaya(A Central University)Chattisgarh 495009India Department of Civil Engineering Birla Institute of Technologv&SciencePilaniPilani 333031India

The physio-chemical changes in concrete mixes due to different coarse aggregate(natural coarse aggregate and recycled coarse aggregate(RCA))and mix design methods(conventional method and Particle Packing Method(PPM))are studied using thermogravimetric analysis of the bydrated cement paste.A method is proposed to estimate the degree of hydration(a)from chemically bound water(WB).The PPM mix designed concrete mixes exhibit lower *** aggregate concrete(RAC)mixes exhibit higher and a after 7 d of curing,contrary to that after 28 and 90 *** chemically bound water at infinite time(WBo)of RAC mixes are lower than the respective conventional concrete *** lower WBo,Ca(OH)2 bound water,free Ca(OH)2 content and FT-IR analysis substantiate the use of pozzolanic cement in the parent concrete of *** compressive strength of concrete and a cannot be correlated for concrete mixes with different aggregate type and mix design method as the present study confirms that the degree of hydration is not the only parameter which governs the macro-mechanical properties of *** this regard,further study on the influence of interfacial transition zone,voids content and aggregate quality on macro-mechanical properties of concrete is needed.

关键词： recycled aggregate concrete Paricle Packing Method thermogravimetric analysis chemically bound water degree of hydration Fourier transform infrared spectroscopy

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Performance assessment of aged binder rejuvenated with Polanga oil

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Journal of Traffic and Transportation Engineering(English Edition) 2019年第6期6卷 608-620页

作者： Sujit kumar pradhan Umesh Chandra Sahoo School of Infrastructure Indian Institute of Technology BhubaneswarOdisha 752050India

Presently,there is a necessity of increasing the reclaimed asphalt pavement(RAP)content in recycling of asphalt pavements to save material cost,preserve energy and protect the environment and efforts are being made to utilize 100%RAP in the *** binder is usually stiff due to oxidation and loss of *** addition of high amount of RAP to the asphalt mix,may make it prone to fatigue *** to this reason,rejuvenators are added to restore some of the physical and chemical properties for desired performance of the *** this study,a locally available non-edible oil known as Polanga oil(biological name:Calophyllum inophyllum)has been explored as rejuvenator to study its effect on performance of the aged *** binder prepared in the laboratory using the Pressure Aging Vessel(PAV)and binder extracted from the RAP collected from a nearby source were used in this study for *** binder and RAP binder mixed with the rejuvenator at varying *** rheological characterizations in terms of flow,rutting,fatigue and creep recovery of rejuvenated PAV aged&RAP binders were carried out using a dynamic shear rheometer(DSR)to determine the optimum dosage of the *** was observed that,5 percent of Polanga oil is able to divulge the desirable rheological properties of the rejuvenated binder.

关键词： Virgin bitumen Reclaimed asphalt pavement Rejuvenator Polanga oil Aged bitumen Rheology

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Assessment of active tectonics from geomorphic indices and morphometric parameters in part of Ganga basin

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Journal of Mountain Science 2019年第8期16卷 1943-1961页

作者： Aditya kumar ANAND Sarada Prasad pradhan Department of Earth Sciences Indian Institute of Technology Roorkee

Ganga river basins exposed to active erosional and deformational processes. The recurrence of landslides, floods, and seismic activities makes it more susceptible to deformational activities. The tectonic analysis using geomorphic indices and morphometric parameters will help in determining the hazard-prone area of the river basin. Geomorphic indices and morphometric parameters are calculated to investigate the role of neotectonic activities, as it acts as a controlling factor in the development of landforms in the tectonically active terrains. Neotectonic activities influence the terrain topography, which significantly affects the drainage system and geomorphological setup of the area. In this study, the assessment of active tectonics of study area was determined using Advanced Spaceborne Thermal Emission and Reflection Radiometer(ASTER) Global Digital Elevation Model(GDEM) based on Geomorphic Indices(Stream Length Gradient index, Hypsometric integral, Asymmetry factor, Basin shape, Valley floor width to Valley height ratio, Mountain front sinuosity index) cumulatively with Linear, Areal and Relief morphometric parameters on 27 delineated basins of the study area. The combined classification of Relative Tectonic Activity Index(Iat) and morphometric parameters of 27 basins categorized all the zones into four different classes:Class 1 – Very High(2.21;299 km^2). The basins with tectonic activities have a consistent relationship with structural disturbances, basin geometry, and field studies. The tectonically active zonation of a part of Ganga basin using geomorphic indices and morphometric parameters suggest that it has significant influence of neotectonic activities in a part of Ganga basin.

关键词： Linear parameters Areal parameters Relief parameters Geomorphic Indices Relative Tectonic Activity Index Ganga river basins

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Bianchi .Type-I Massive String Magnetized Barotropic Perfect Fluid Cosmological Model in General Relativity

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Chinese Physics Letters 2007年第8期24卷 2455-2458页

作者： BALI Raj PAREEK Umesh kumar pradhan Anirudh Department of Mathematics University of Rajasthan Jaipur-302 004 India Department of Mathematics Jaipur Engineering College and Research Centre Jaipur-303 905 India Department of Mathematics Hindu Post-graduate College Zamania-232 331 Chazipur India

Bianchi type-I massive string cosmological model with magnetic field of barotropic perfect fluid distribution through the techniques used by Latelier and Stachel is investigated. To obtain the deterministic model of the universe, it is assumed that the universe is filled with barotropic perfect fluid distribution. The magnetic field is due to electric current produced Mong the x-axis with infinite electrical conduictivity. The behaviour of the model in the presence and absence of magnetic field together with other physical aspects is further discussed.

关键词： coated conductor buffer layer self-epitaxy CeO2

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