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  1. Article ; Online: Understanding Trend of the Covid-19 Fatalities in India

    Dimri, V. P. / Ganguli, Shib S. / Srivastava, R. P.

    Journal of the Geological Society of India

    2020  Volume 95, Issue 6, Page(s) 637–639

    Keywords Geology ; covid19
    Language English
    Publisher Springer Science and Business Media LLC
    Publishing country us
    Document type Article ; Online
    ZDB-ID 802600-2
    ISSN 0974-6889 ; 0016-7622
    ISSN (online) 0974-6889
    ISSN 0016-7622
    DOI 10.1007/s12594-020-1492-2
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    In stock of ZB MED Bonn / Germany

    Z 2013/702: Show issues

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  3. Book: Fractal behaviour of the earth system

    Dimri, V. P

    2005  

    Author's details V. P. Dimri (editor)
    Keywords Fractals ; Geology/Mathematics ; Geophysics/Mathematics ; Fraktal ; Geowissenschaften ; Earth (Planet)
    Language English
    Size XVI, 208 S, graph. Darst., Kt, 24 cm
    Publisher Springer
    Publishing place Berlin u.a.
    Document type Book
    Note Literaturangaben
    ISBN 3540265325 ; 9783540265320
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Order via subito

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    Inter-library loan at ZB MED

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  4. Book: Fractal behaviour of the earth system

    Dimri, V. P

    2005  

    Author's details V. P. Dimri (editor)
    Keywords Fractals ; Geology/Mathematics ; Geophysics/Mathematics ; Fraktal ; Geowissenschaften ; Earth (Planet)
    Language English
    Size XVI, 208 S, graph. Darst., Kt, 24 cm
    Publisher Springer
    Publishing place Berlin u.a.
    Document type Book
    Note Literaturangaben
    ISBN 3540265325 ; 9783540265320
    Database Former special subject collection: coastal and deep sea fishing

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    Order via subito

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  5. Book: Wavelets and fractals in Earth System Sciences

    Chandrasekhar, E / Dimri, V. P / Gadre, V. M

    (A Chapman & Hall book ; Geophysics)

    2014  

    Author's details eds. : E. Chandrasekhar, V.P. Dimri, V.M. Gadre
    Series title A Chapman & Hall book
    Geophysics
    Keywords Earth sciences/Mathematics ; Fractals ; Wavelets (Mathematics)
    Language English
    Size XIV, 286 S., Ill., graph. Darst.
    Publisher CRC Press
    Publishing place Boca Raton, Fla. u.a.
    Document type Book
    Note Literaturangaben
    ISBN 1466553596 ; 9781466553590
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Order via subito

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    Inter-library loan at ZB MED

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  6. Book ; Online: Fractal models in exploration geophysics

    Dimri, V. P / Srivastava, R. P / Vedanti, Nimisha

    applications to hydrocarbon reservoirs

    (CSIR-NGRI golden jubilee v. 3 ; Handbook of geophysical exploration)

    2011  

    Abstract: Researchers in the field of exploration geophysics have developed new methods for the acquisition, processing and interpretation of gravity and magnetic data, based on detailed investigations of bore wells around the globe. Fractal Models in Exploration ... ...

    Author's details V.P. Dimri, R.P. Srivastava, Nimisha Vedanti
    Series title CSIR-NGRI golden jubilee v. 3
    Handbook of geophysical exploration
    Abstract Researchers in the field of exploration geophysics have developed new methods for the acquisition, processing and interpretation of gravity and magnetic data, based on detailed investigations of bore wells around the globe. Fractal Models in Exploration Geophysics describes fractal-based models for characterizing these complex subsurface geological structures. The authors introduce the inverse problem using a fractal approach which they then develop with the implementation of a global optimization algorithm for seismic data: very fast simulated annealing (VFSA). This approach provides high-
    Keywords Geophysics/Mathematical models ; Hydrocarbon reservoirs/Mathematical models ; /Mathematical models
    Language English
    Size Online-Ressource (xvi, 165 p.), ill. (some col.).
    Edition 1st ed (Online-Ausg.)
    Publisher Elsevier
    Publishing place Oxford
    Document type Book ; Online
    Note Electronic reproduction; Palo Alto, Calif; ebrary; 2011; Available via World Wide Web; Access may be limited to ebrary affiliated libraries ; Includes bibliographical references and index
    ISBN 9780080451589 ; 9780080914442 ; 0080451586 ; 0080914446
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Order via subito

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  7. Book ; Online: Predicting heat flow in the 2001 Bhuj earthquake (Mw=7.7) region of Kachchh (Western India), using an inverse recurrence method

    Vedanti, N. / Pandey, O. P. / Srivastava, R. P. / Mandal, P. / Kumar, S. / Dimri, V. P.

    eISSN: 1607-7946

    2018  

    Abstract: Terrestrial heat flow is considered an important parameter in studying the regional geotectonic and geodynamic evolutionary history of any region. However, its distribution is still very uneven. There is hardly any information available for many ... ...

    Abstract Terrestrial heat flow is considered an important parameter in studying the regional geotectonic and geodynamic evolutionary history of any region. However, its distribution is still very uneven. There is hardly any information available for many geodynamically important areas. In the present study, we provide a methodology to predict the surface heat flow in areas, where detailed seismic information such as depth to the lithosphere-asthenosphere boundary (LAB) and crustal structure is known. The tool was first tested in several geotectonic blocks around the world and then used to predict the surface heat flow for the 2001 Bhuj earthquake region of Kachchh, India, which has been seismically active since historical times and where aftershock activity is still continuing nine years after the 2001 main event. Surface heat flow for this region is estimated to be about 61.3 mW m −2 . Beneath this region, heat flow input from the mantle as well as the temperatures at the Moho are quite high at around 44 mW m −2 and 630 °C, respectively, possibly due to thermal restructuring of the underlying crust and mantle lithosphere. In absence of conventional data, the proposed tool may be used to estimate a first order heat flow in continental regions for geotectonic studies, as it is also unaffected by the subsurface climatic perturbations that percolate even up to 2000 m depth.
    Subject code 333 ; 621
    Language English
    Publishing date 2018-01-15
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    Inter-library loan at ZB MED

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  8. Article ; Online: Power law distribution of susceptibility and density and its relation to seismic properties

    Bansal, A.R. / Gabriel, G. / Dimri, V.P.

    An example from the German Continental Deep Drilling Program (KTB)

    2010  

    Abstract: We examine the nature of continental crust from the power law scaling behaviour of magnetic susceptibility and density variations. We analyze the data from the main hole of the German Continental Deep Drilling Program (KTB) using the Fast Fourier ... ...

    Abstract We examine the nature of continental crust from the power law scaling behaviour of magnetic susceptibility and density variations. We analyze the data from the main hole of the German Continental Deep Drilling Program (KTB) using the Fast Fourier Transform (FFT) and the multitaper method. On the basis of depth-dependent behaviour of the calculated scaling exponents the KTB well can be divided into four zones of depth 0–0.8 km, 0.8–3.5 km, 3.5–7.7 km and 7.7–9.1 km which are also lithologically distinguishable. The scaling exponents for the susceptibility data correlate by 22–32% and 16–25% with the conversion log and the fracture density. In the case of density a correlation between the scaling exponent values and conversion log and the fracture density are found to be 19–45% and 44–66%, respectively. The multitaper method provides more reliable values of scaling exponents and calculated values are having higher correlation with the conversion log and fracture density than the FFT. The defined zones 3 and 4 are having lower values of scaling exponents and higher values of fractal dimension than the shallower sections. This observation indicates an increase of crustal heterogeneity in terms of fault or fracture density.
    Language English
    Publisher Elsevier
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Complexity and Extreme Events in Geosciences

    Sharma, A.S. / Baker, D.N. / Bhattacharyya, A. / Bunde, A. / Dimri, V.P. / Gupta, H.K. / Gupta, V.K. / Lovejoy, S. / Main, I.G. / Schertzer, D. / Storch, H.v. / Watkins, N.W.

    Extreme Events and Natural Hazards: The Complexity Perspective, Geophysical Monograph Series

    An Overview

    2012  

    Abstract: Extreme events are an emergent property of many complex, nonlinear systems in which various interdependent components and their interaction lead to a competition between organized (interaction dominated) and irregular (fluctuation dominated) behavior. ... ...

    Abstract Extreme events are an emergent property of many complex, nonlinear systems in which various interdependent components and their interaction lead to a competition between organized (interaction dominated) and irregular (fluctuation dominated) behavior. Recent advances in nonlinear dynamics and complexity science provide a new approach to the understanding and modeling of extreme events and natural hazards. The main connection of extreme events to nonlinear dynamics arises from the recognition that they are not isolable phenomena but must be understood in terms of interactions among different components, within and outside the specific system. A wide range of techniques and approaches of complexity science are directly relevant to geosciences, e.g., nonlinear modeling and prediction, state space reconstruction, statistical self-similarity and its dynamical origins, stochastic cascade models, fractals and multifractals, network theory, self-organized criticality, etc. The scaling of processes in geosciences has been one of the most active areas of studies and has the potential to provide better tools for risk assessment and analysis. Many studies of extreme events in geosciences are also contributing to the basic understanding of their inherent properties, e.g., maximum entropy production and criticality, space-time cascades, and fractional Lévy processes. The need for better data for extreme events is evident in the necessity for detailed statistical analysis, e.g., in marine storms, nonlinear correlations, etc. The Chapman Conference on Complexity and Extreme Events held (2010) in Hyderabad, India, was focused on the understanding of natural hazards mainly from the perspective of complexity science. The emerging theme from the conference was the recognition of complexity science as the interdisciplinary framework for the understanding of extreme events and natural hazards.
    Keywords Marine ; Coastal and Polar Systems ; 551
    Subject code 612
    Publisher GKSS Forschungszentrum Geesthacht GmbH
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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