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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier,
    Keywords: Porous materials-Fluid dynamics-Computer simulation. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (274 pages)
    Edition: 1st ed.
    ISBN: 9780128177983
    DDC: 620.116
    Language: English
    Note: Intro -- Modelling of Flow and Transport in Fractal Porous Media -- Copyright -- Contents -- Contributors -- About the editors -- Preface -- Chapter 1: A brief introduction to flow and transport in fractal porous media -- 1. Introduction -- 2. Fractal structural characteristics of porous media -- 3. Transport model based on fractal geometry and other theories -- 4. Modelling of transport characteristics and its application -- 5. Conclusion -- Acknowledgments -- References -- Chapter 2: Fractal structural parameters from images: Fractal dimension, lacunarity, and succolarity -- 1. Introduction -- 2. Definition and physical meaning -- 3. Calculated method -- 4. Applications in fractal porous media -- 4.1. Characterization of complexity, heterogeneity, and anisotropy -- 4.2. Fractal model of reservoir permeability -- 4.3. Fracture distribution characterization -- 4.4. Permeability prediction -- 5. Conclusions -- Acknowledgments -- References -- Chapter 3: Tortuosity in two-dimensional and three-dimensional fractal porous media: A numerical analysis -- 1. Introduction -- 2. The relation between tortuosity and fractal dimensions -- 3. Theoretical calculation of tortuosity and its fractal dimension -- 4. Numerical simulation for tortuosity -- 5. Comparing the calculated results for tortuosity -- 6. Conclusion -- Acknowledgments -- References -- Chapter 4: Fractal characteristics of pore structure and its impact on adsorption and flow behaviors in shale -- 1. Introduction -- 2. Pore structure in shale characterized by various methods -- 2.1. SEM -- 2.2. Nano-CT -- 2.3. MICP -- 2.4. CO2GA and N2GA -- 2.5. NMR -- 3. Influences of CO2-water-shale interactions on the pore structure of shale -- 3.1. Experimental section -- 3.2. SEM analysis -- 3.3. N2GA analysis -- 3.3.1. Adsorption-desorption isotherms and pore size distribution (PSD). , 3.3.2. Pore structure parameter analysis from N2GA -- 3.3.3. Fractal dimension characteristics of pore structure from N2GA -- 3.4. NMR analysis -- 3.4.1. The transverse relaxation time (T2) curve -- 3.4.2. Pore structure parameter analysis from NMR -- 3.4.3. Fractal dimension characteristics of NMR -- 3.5. Combination of N2GA and NMR analysis -- 4. Relationship between fractal dimension and shale pore structure parameters, adsorption, and seepage capacity -- 4.1. Relationships between fractal dimension and pore structure parameters of shale -- 4.2. Relationships between fractal dimension and adsorption capacity of shale -- 4.3. Relationships between fractal dimension and gas flow in shale -- 5. Conclusions -- Acknowledgments -- References -- Chapter 5: Modelling flow and transport in variably saturated porous media: Applications from percolation theory and effe ... -- 1. Introduction -- 2. Combining universal scaling laws from percolation theory and the effective-medium approximation -- 3. Diffusion -- 4. Electrical conductivity -- 5. Permeability -- 5.1. Single-phase permeability -- 5.1.1. Critical path analysis -- 5.1.2. Effective-medium approximation -- 5.2. Water relative permeability -- 5.2.1. CPA combined with power-law pore-throat size distribution -- 5.2.2. CPA combined with log-normal pore-throat size distribution -- 5.2.3. EMA combined with power-law pore-throat size distribution -- 6. Conclusion -- Acknowledgment -- References -- Chapter 6: Fractal analysis on conductive heat transfer in porous media -- 1. Introduction -- 2. Exactly self-similar fractal model -- 3. Statistically self-similar fractal model -- 4. Statistically self-similar fractal model with the effect of rough surfaces -- 5. Conclusions -- Acknowledgment -- References -- Chapter 7: Transport property and application of tree-shaped network -- 1. Introduction and background. , 2. Application of tree-shaped network -- 3. Optimization principle for tree-shaped network -- 3.1. The origin of Murray's law -- 3.2. Optimization of tree-shaped structure -- 3.3. Fractal tree-shaped network -- 4. Fluid flow in tree-shaped network -- 4.1. Single-phase flow -- 4.2. Flow in porous media -- 5. Conclusions -- Acknowledgments -- References -- Chapter 8: Fractal characterization of fracture networks and production prediction for multiple fractured horizontal well ... -- 1. Introduction -- 2. Fractal fracture property distribution -- 2.1. Fractal dimensions of induced fractures -- 2.2. Fractal fracture porosity, permeability, and compressibility distribution -- 2.3. Results and discussion -- 3. DMFDE construction -- 3.1. Diffusivity equations of dual-media systems -- 3.2. Model validation and application -- 4. Conclusions -- Acknowledgments -- References -- Chapter 9: Application of fractal theory in transient pressure properties of hydrocarbon reservoir -- 1. Introduction -- 2. Fractal well testing model for a vertical well in a homogeneous oil and gas reservoir -- 2.1. Physical model description -- 2.2. Mathematical model and its solution -- 2.3. Pressure response analysis -- 3. Fractal nonlinear seepage flow model for deformable dual media reservoir -- 3.1. Background -- 3.2. Problems statement -- 3.2.1. Physical model -- 3.2.2. Mathematical model -- 3.3. Solution analysis -- 3.3.1. Solution to mathematical model -- 3.3.2. Flow behavior characteristics -- 3.4. Application to pressure analysis -- 4. Transient pressure fractal analysis of a vertical well in a composite reservoir -- 4.1. Physical model -- 4.2. Mathematical model -- 4.3. Solution to the model -- 4.4. Results analysis -- 5. Fractal theory in shale gas reservoir -- 5.1. Background -- 5.2. Fractal model for shale -- 5.3. Multilayer fractal adsorption model. , 5.4. Experimental results and discussion -- 6. Conclusions -- References -- Index.
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  • 2
    Online Resource
    Online Resource
    Bristol :Institute of Physics Publishing,
    Keywords: Electronic books.
    Description / Table of Contents: The book aims to provide fundamental knowledge of automotive LiDAR for graduate students, engineers, and early-stage researchers, including semiconductor optoelectronic devices, scanners, essential circuits, and global players.
    Type of Medium: Online Resource
    Pages: 1 online resource (110 pages)
    Edition: 1st ed.
    ISBN: 9780750345255
    Series Statement: IOP Series in Advances in Optics, Photonics and Optoelectronics Series
    Language: English
    Note: Intro -- Author biography -- Wei Wei -- Chapter LiDAR's role in autonomous driving -- 1.1 Autonomous driving -- 1.2 LiDAR in autonomous driving -- References -- Chapter Fundamentals of ToF LiDAR -- 2.1 Principle of ToF ranging -- 2.2 LiDAR structure -- 2.3 AMCW LiDAR -- 2.4 FMCW LiDAR -- References -- Chapter Laser source and transmitter -- 3.1 Fundamentals of semiconductor lasers -- 3.2 CW and pulsed lasers -- 3.3 Edge emitting and surface-emitting diode lasers -- 3.4 Driver circuit of laser diode -- References -- Chapter Photodiode and receiver -- 4.1 Fundamentals of photodiodes -- 4.2 PIN -- 4.3 APD and SPAD -- 4.4 TIA -- 4.5 Timing discriminator -- 4.6 TDC and timing -- References -- Chapter Scanner -- 5.1 Scanner specifications -- 5.2 Optical configuration -- 5.3 Scanning schemes -- 5.4 Mechanical rotating -- 5.5 Mirror rotating -- 5.6 MEMS micromirror -- 5.7 Galvanometer mirror -- 5.8 Risley prism -- 5.9 Wavelength tuning -- 5.10 Optical phased array -- 5.11 Flash LiDAR -- References -- Chapter Automotive LiDAR players -- 6.1 Global players -- 6.2 USA -- 6.3 Canada -- 6.4 Europe -- 6.5 Israel -- 6.6 China -- 6.7 South Korea -- 6.8 Japan -- 6.9 Australia -- 6.10 List of LiDAR for mass production -- Further reading.
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  • 3
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Municipal water supply-Management. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (490 pages)
    Edition: 1st ed.
    ISBN: 9781119759362
    Language: English
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  • 4
    Keywords: Electronic books ; Konferenzschrift ; Informatik ; Computersimulation ; CAD-CAM
    Description / Table of Contents: This is an open access book. With the rapid development of society and the continuous progress of computer science and technology, when entering the information age, design has also been integrated into the new media age in time. The application of computer technology in design has broken the limitations of traditional design, achieved a huge breakthrough in the field of design, provided more innovative forms of expression for design, and also achieved subversive changes in design methods. We need to note that design comes from life, and then it is a matter of applying tools and crafting techniques to realize it. For designers, maintaining innovation is still the first and foremost in creation. How to use technology to enable design without relying on technology is still a dilemma. Therefore, it is necessary to create a space for the researchers, practitioners, and enthusiasts in the field of computing and design to gather and discuss this current issue. The International Conference on Computer Technology and Media Convergence Design aims to accommodate this need, as well as to: 1. Advance the academic field by exploring cutting-edge research and applications. 2. Open up new horizons, broaden the horizons of computer technology research and design, 3. Create academic forums to provide opportunities for academic resource sharing and research exchanges. 2022 2nd International Conference on Computer Technology and Media Convergence Design (CTMCD 2022) will be held in Dali, China during May 13-15, 2022. CTMCD2022 invites the researchers, practitioners, and enthusiasts in the field of computing and design to participate and share knowledge. We also accept papers on computer technology and media convergence design.
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (xvii, 919 Seiten)
    ISBN: 9789464630466
    Series Statement: Advances in Computer Science Research Volume 99
    RVK:
    Language: English
    Note: Description based on publisher supplied metadata and other sources
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  • 5
    Online Resource
    Online Resource
    Singapore :Springer Singapore Pte. Limited,
    Keywords: Electrostatics. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (179 pages)
    Edition: 1st ed.
    ISBN: 9789811030260
    Language: English
    Note: Intro -- Preface -- Scope -- Acknowledgments -- Contents -- About the Authors -- Part I: Particulate Charging Phenomena in Multiphase Flows -- Chapter 1: Electrification of Particulate in Multiphase Flows -- 1.1 Electrification of Particulate in Industrial Processes -- 1.1.1 Electrification in Petroleum Industry -- 1.1.2 Electrification in Shipping Industry -- 1.1.3 Electrification in Powder Industry -- 1.1.4 Electrostatic Precipitation Technology -- 1.1.5 Electrostatic Spraying Technology -- 1.1.6 Electrostatic Separation Technology -- 1.2 Electrification of Particulate in Natural Phenomenon -- 1.2.1 Electrification in Wind-Blown Sand -- 1.2.2 Electrification in Thunderstorm -- 1.3 Influence of Particulate Electrification to Multiphase Flows -- 1.3.1 Influence of Coulomb Force -- 1.3.2 Influence of Electrostatic Discharge -- 1.3.2.1 Causing Fires and Explosive Accidents -- 1.3.2.2 Causing Electric Shock on Human Body -- 1.3.2.3 Causing Interference to the Normal Operation of Electronic Equipment -- 1.3.3 Influence of Electrostatic Induction -- References -- Chapter 2: Properties of Particulate in Multiphase Flows -- 2.1 Particulate Forms -- 2.2 Particulate - Fluid Interaction -- 2.3 Particulate - Particulate Interaction -- 2.4 Basic Theory of Electrostatics Induced by Particulate Electrification -- 2.4.1 Charge and Coulomb´s Law -- 2.4.2 Electric Field and Gauss Theorem -- 2.4.3 Electric Potential and Basic Electrostatic Field Equations -- References -- Part II: Basic Theory of Droplet Charging in Multiphase Flows -- Chapter 3: Charging Ways and Basic Theories of Droplet Electrification -- 3.1 Charging Ways of Droplet Electrification -- 3.1.1 Streaming Electrification -- 3.1.2 Settlement Electrification -- 3.1.3 Injection Electrification -- 3.1.4 Liquid Impingement Electrification -- 3.1.5 Splash Electrification. , 3.1.6 Interface Electrification Between Gas-Liquid -- 3.1.7 Diffusion Electrification -- 3.2 Basic Theories of Droplet Electrification -- 3.2.1 Contact Charging -- 3.2.2 Induction Charging -- 3.2.3 Corona Charging -- 3.2.4 Interface Charging -- 3.2.4.1 Temperature Gradient -- 3.2.4.2 Chemical Potential Gradient -- References -- Chapter 4: Numerical Modeling Methods for Droplet Electrification -- 4.1 Governing Equations of Fluid Flow and Electric Field -- 4.1.1 Governing Equations of Fluid Flow -- 4.1.2 Gas-Liquid Two-Phase Interface Tracking -- 4.2 Coupling with Charging Model -- 4.2.1 Electrical Leakage Model -- 4.2.2 Constant Charge Model -- 4.3 Applications of Numerical Simulation on Droplet Electrification -- 4.3.1 Movement of Electrified Liquid Droplets in Electric Fields -- 4.3.2 Characteristic of Electrified Liquid in Electrostatic Spraying -- References -- Part III: Basic Theory of Particle Charging in Multiphase Flows -- Chapter 5: Charging Ways and Basic Theories of Particle Electrification -- 5.1 Charging Ways of Particle Electrification -- 5.1.1 Crack Electrification -- 5.1.2 Induced Electrification -- 5.1.3 Attached Electrification -- 5.1.4 Contact Electrification -- 5.1.4.1 Theory of contact electrification between metals -- 5.1.4.2 Contact electrification between metals and insulating materials -- 5.1.4.3 Contact electrification of insulating materials -- 5.1.4.4 Separation process -- 5.2 Basic Theory of Particle Electrification -- 5.2.1 Estimate the Charges of Powder Electrification -- 5.2.2 Charge Transfer Generated by the External Electric Field -- 5.2.3 Charge Transfer Generated by Asymmetry Contact -- 5.2.4 Charge Transfer from Aqueous Ion Shift on Particle Surfaces -- References -- Chapter 6: Numerical Modeling Methods for Particle Electrification -- 6.1 Governing Equations of Gas-Solid Two-Phase Flow. , 6.1.1 Governing Equations of Fluid -- 6.1.2 Governing Equation of Particle Motion -- 6.1.3 Force Between Particle and Fluid -- 6.1.4 The Contact Force Between Particles -- 6.2 Applications of Numerical Simulation on Particle Charging -- 6.2.1 Charged Particle Movement in Electrostatic Precipitator -- 6.2.2 Charging Behavior of Sand in Horizontal Wind Tunnel -- References -- Chapter 7: Experimental Methods for Particulate Charging Processes -- 7.1 Measurement of Electrostatic Potential (Pressure) -- 7.1.1 Method Using Contact Making Voltmeter -- 7.1.2 Method of Using Non-contact Voltmeter -- 7.2 Measurement of Electrostatic Charge Quantity -- 7.2.1 Direct Measurement Method of Charges -- 7.2.2 Measurement of Charge Quantity by Electrostatic Induction Method -- 7.3 Measurement of Electrostatic Properties of Powder -- 7.3.1 Measurement of Specific Resistance of Powder -- 7.3.1.1 Probe Method -- 7.3.1.2 Two-Counter Electrode Method -- 7.3.1.3 Three-Electrode Method -- 7.3.2 Measurement of Electrostatic Potential (Voltage) of Powder -- 7.3.2.1 Measurement of Specific Mass Charge Density of Powder -- 7.4 Measurement of Electrostatic Charge Density of Liquid -- Chapter 8: Electrostatic Utilization and Protection in Multiphase Flows -- 8.1 Main Contents of Electrostatic Protection -- 8.2 Electrostatic Protection of Powders -- 8.2.1 General Measures of Powder Electrostatic Protection -- 8.2.2 Electrostatic Protection Measures in each Process of Powder Processing -- 8.3 Electrostatic Protection of Liquids -- 8.3.1 General Measures of Liquid Electrostatic Protection -- 8.3.2 Technological Protection Measures for Various Devices -- Reference -- Chapter 9: Potential Applications of Particulate Electrification.
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  • 6
    Online Resource
    Online Resource
    Florence :Taylor & Francis Group,
    Keywords: Communication in science. ; Communication in engineering. ; Electronic books.
    Description / Table of Contents: Stay on top with the latest developments in scientific and technical journal publications! In Scholarly Communication in Science and Engineering Research in Higher Education, experts in the academic community propose cost-effective alternatives to commercial publications in the face of increased journal prices and reduced budgets. This book discusses recent technological innovations that can maintain the needs of researchers who need to stay on the cutting edge of science and technology as well as scholars who must be published and peer-reviewed in order to achieve tenure and promotion. This text also examines the latest developments in information retrieval that will effectively cut time and costs for academic researchers in the library. Scholarly Communication in Science and Engineering Research in Higher Education focuses on the need for the academic community to accept new, economical methods of producing and making available publications such as peer reviews, research papers, letters, technical and experiment reports, preprints, and conference papers. This volume also emphasizes that scientists and engineerswhether graduate students or professionalsmust have access to the latest relevant research in their fields and rely on libraries to provide it. Several chapters in this book examine the problem areas of information technology that will need to be fixed, such as bottlenecks to the flow of information, difficulties using information retrieval systems, and the challenges with archiving electronic journals. Using research and case studies, this book offers strategies for obtaining benefits such as: more efficient and inexpensive ways to access and navigate information more cost-effective means of authentication and quality control new initiative programs in electronic theses and dissertations to assist graduate students increased
    Type of Medium: Online Resource
    Pages: 1 online resource (203 pages)
    Edition: 1st ed.
    ISBN: 9781136414565
    DDC: 501/.4
    Language: English
    Note: Cover -- Scholarly Communication in Science and Engineering Research in Higher Education -- Copyright -- CONTENTS -- Introduction -- SCHOLARLY PUBLISHING -- Can Peer Review Be Better Focused? -- The Future of Scientific and Technical Journals -- The eScholarship Repository: A University of California Response to the Scholarly Communication Crisis -- Conference Proceedings at Publishing Crossroads -- Electronic Theses and Dissertations: Enhancing Scholarly Communication and the Graduate Student Experience -- Chemistry Journals: Cost-Effectiveness, Seminal Titles and Exchange Rate Profiteering -- SCHOLARLY COMMUNICATION -- The Role of Scientific Literature in Electronic Scholarly Communication -- Scholarly Communication in Flux: Entrenchment and Opportunity -- DIGITAL ARCHIVE AND RETRIEVAL -- Issues and Concerns with the Archiving of Electronic Journals -- User Expectations and the Complex Reality of Online Research Efforts -- BIBLIOMETRIC ANALYSIS OF CITATION DATA -- Bibliometric and Bibliographic Analysis in an Era of Electronic Scholarly Communication -- Citation Patterns of Advanced Undergraduate Students in Biology, 2000-2002 -- Index.
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  • 7
    Publication Date: 2017-01-27
    Description: The last interglaciation (~130 to 116 ka) is a time period with a strong astronomically induced seasonal forcing of insolation compared to the present. Proxy records indicate a significantly different climate to that of the modern, in particular Arctic summer warming and higher eustatic sea level. Because the forcings are relatively well constrained, it provides an opportunity to test numerical models which are used for future climate prediction. In this paper we compile a set of climate model simulations of the early last interglaciation (130 to 125 ka), encompassing a range of model complexities. We compare the simulations to each other and to a recently published compilation of last interglacial temperature estimates. We show that the annual mean response of the models is rather small, with no clear signal in many regions. However, the seasonal response is more robust, and there is significant agreement amongst models as to the regions of warming vs cooling. However, the quantitative agreement of the model simulations with data is poor, with the models in general underestimating the magnitude of response seen in the proxies. Taking possible seasonal biases in the proxies into account improves the agreement, but only marginally. However, a lack of uncertainty estimates in the data does not allow us to draw firm conclusions. Instead, this paper points to several ways in which both modelling and data could be improved, to allow a more robust model–data comparison.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 8
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    COPERNICUS GESELLSCHAFT MBH
    In:  EPIC3Climate of the Past, COPERNICUS GESELLSCHAFT MBH, 9, pp. 841-858, ISSN: 1814-9324
    Publication Date: 2019-07-17
    Description: Several proxy-based and modeling studies have investigated long-term changes in Caribbean climate during the Holocene, however, very little is known on its variability on short timescales. Here we reconstruct seasonality and interannual to multidecadal variability of sea surface hydrology of the southern Caribbean Sea by applying paired coral Sr/Ca and δ18O measurements on fossil annually banded Diploria strigosa corals from Bonaire. This allows for better understanding of seasonal to multidecadal variability of the Caribbean hydrological cycle during the mid- to late Holocene. The monthly resolved coral Δδ18O records are used as a proxy for the oxygen isotopic composition of seawater (δ18Osw) of the southern Caribbean Sea. Consistent with modern day conditions, annual δ18Osw cycles reconstructed from three modern corals reveal that freshwater budget at the study site is influenced by both net precipitation and advection of tropical freshwater brought by wind-driven surface currents. In contrast, the annual δ18Osw cycle reconstructed from a mid-Holocene coral indicates a sharp peak towards more negative values in summer, suggesting intense summer precipitation at 6 ka BP (before present). In line with this, our model simulations indicate that increased seasonality of the hydrological cycle at 6 ka BP results from enhanced precipitation in summertime. On interannual to multidecadal timescales, the systematic positive correlation observed between reconstructed sea surface temperature and salinity suggests that freshwater discharged from the Orinoco and Amazon rivers and transported into the Caribbean by wind-driven surface currents is a critical component influencing sea surface hydrology on these timescales.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 9
    Publication Date: 2016-12-09
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 10
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    Wiley
    In:  EPIC3Journal of Geophysical Research-Oceans, Wiley, 121, pp. 4928-4945, ISSN: 0148-0227
    Publication Date: 2019-07-17
    Description: A significant increase in sea surface temperature (SST) is observed over the midlatitude western boundary currents (WBCs) during the past century. However, the mechanism for this phenomenon remains poorly understood due to limited observations. In the present paper, several coupled parameters (i.e., sea surface temperature (SST), ocean surface heat fluxes, ocean water velocity, ocean surface winds and sea level pressure (SLP)) are analyzed to identify the dynamic changes of the WBCs. Three types of independent data sets are used, including reanalysis products, satellite-blended observations. and climate model outputs from the fifth phase of the Climate Model Intercomparison Project (CMIP5). Based on these broad ranges of data, we find that the WBCs (except the Gulf Stream) are intensifying and shifting toward the poles as long-term effects of global warming. An intensification and poleward shift of near-surface ocean winds, attributed to positive annular mode-like trends, are proposed to be the forcing of such dynamic changes. In contrast to the other WBCs, the Gulf Stream is expected to be weaker under global warming, which is most likely related to a weakening of the Atlantic Meridional Overturning Circulation (AMOC). However, we also notice that the natural variations of WBCs might conceal the long-term effect of global warming in the available observational data sets, especially over the Northern Hemisphere. Therefore, long-term observations or proxy data are necessary to further evaluate the dynamics of the WBCs.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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