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  • 1
    Keywords: Environmental sciences Mathematics. ; Mathematical optimization. ; Calculus of variations. ; Computer simulation. ; Oceanography. ; Mathematical Applications in Environmental Science. ; Calculus of Variations and Optimization. ; Computer Modelling. ; Ocean Sciences.
    Description / Table of Contents: Data Assimilation for Chaotic Dynamics -- Multifidelity Data Assimilation for Physical Systems -- Filtering with One-Step-Ahead Smoothing for Efficient Data Assimilation -- Sparsity-Based Kalman Filters for Data Assimilation -- Perturbations by the Ensemble Transform -- Stochastic Representations for Model Uncertainty in the Ensemble Data Assimilation System -- Second-Order Methods in Variational Data Assimilation -- Statistical Parameter Estimation for Observation Error Modelling: Application to Meteor Radars -- Observability Gramian and Its Role in the Placement of Observations in Dynamic Data Assimilation -- Placement of Observations for Variational Data Assimilation: Application to Burgers’ Equation and Seiche Phenomenon -- Analysis, Lateral Boundary, and Observation Impacts in a Limited Area Model -- An Overview of KMA’s Operational NWP Data Assimilation Systems.
    Abstract: This book contains the most recent progress in data assimilation in meteorology, oceanography and hydrology including land surface. It spans both theoretical and applicative aspects with various methodologies such as variational, Kalman filter, ensemble, Monte Carlo and artificial intelligence methods. Besides data assimilation, other important topics are also covered including adaptive observations, sensitivity analysis, parameter estimation and AI applications. The book is useful to individual researchers as well as graduate students for a reference in the field of data assimilation.
    Type of Medium: Online Resource
    Pages: XXI, 705 p. 239 illus., 224 illus. in color. , online resource.
    Edition: 1st ed. 2022.
    ISBN: 9783030777227
    DDC: 333.7
    Language: English
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  • 2
    Call number: M 18.92012
    In: Data assimilation for atmospheric, oceanic and hydrologic applications
    Description / Table of Contents: This book contains the most recent progress in data assimilation in meteorology, oceanography and hydrology including land surface. It spans both theoretical and applicative aspects with various methodologies such as variational, Kalman filter, ensemble, Monte Carlo and artificial intelligence methods. Besides data assimilation, other important topics are also covered including targeting observation, sensitivity analysis, and parameter estimation. The book will be useful to individual researchers as well as graduate students for a reference in the field of data assimilation.
    Type of Medium: Monograph available for loan
    Pages: xxxvi, 553 Seiten , Illustrationen
    Edition: 1. Auflage
    Edition: Online edition Springer eBook Collection. Earth and Environmental Science
    ISBN: 978-3-319-43414-8
    Series Statement: Data assimilation for atmospheric, oceanic and hydrologic applications Vol. III
    Language: English
    Branch Library: GFZ Library
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  • 3
    Call number: M 18.92011
    In: Data assimilation for atmospheric, oceanic and hydrologic applications
    Type of Medium: Monograph available for loan
    Pages: xix, 730 Seiten , Illustrationen
    ISBN: 978-3-642-35087-0
    Series Statement: Data assimilation for atmospheric, oceanic and hydrologic applications Vol. II
    Language: English
    Branch Library: GFZ Library
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  • 4
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Environmental science & technology 28 (1994), S. 757-762 
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 330-332 (Feb. 2007), p. 377-380 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Efficacy of poly(L-lactic acid) (PLLA)/nano-hydroxyapatite(HA) hybrid nanofibrousscaffolds for dental tissue engineering is described and their performance on normal cells with MG-63is compared as well in this study. Perfectly PLLA/HA fibrous scaffolds were fabricated by anelectrospinning process under optimal condition. Cell culcure and adenovirus encoding greenfluorenscent protein technique were used to study the morphology of cells grown on the scaffolds.[removed info]The results show that the growth of DPSCs and PCs is well observed attached to the PLLA/HA fibers,as well as MG-63, which indicate that the nanofibrous PLLA/HA scaffold could be used as a potentialcell carrier in dental tissue engineering
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 330-332 (Feb. 2007), p. 495-498 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Two starting collagens, sponge and floc collagen, were used to preparecollagen/tricalcium phosphate (TCP) composites. The resulting composites were porous and had200μm pore size. However, there was a difference in the microstructure of the pore walls for thecomposites derived from the two collagens, the pore walls in sponge collagen/TCP compositewere still porous and had 200 nm micropores size, TCP particles were trapped in collagenmatrices. While floc collagen/TCP composite had smooth and dense walls in which TCP particleswere embedded. The difference could be attributed to the starting collagen with different status.Sponge collagen has a soft structure, which easily becomes disassembled fibrils during alkalitreatment, the disassembled fibrils are integrated again to form a dense morphology for pore wallsafter freeze-drying. While floc collagen has already a low disassembly degree, the alkali treatmentcould not be able to separate the fibrils, this remains as micropores in pore walls afterfreeze-drying. Both porous composites are significant in bone tissue engineering or regeneration.MTT test results showed the two composites had good cytocompatibility, and spongecollagen/TCP composite was somewhat better than floc collagen/TCP composite, which couldresult from that micropores derived roughness in pore walls of sponge collagen/TCP composite issuitable for cell growth
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 330-332 (Feb. 2007), p. 393-396 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Novel Poly(l-lactic acid) (PLLA)/ Multi-walled carbon nanotubes (MWNTs)/hydroxyapatite (HA) nanofibrous scaffolds with high porosity and well-controlled porearchitectures were prepared via electrospinning techniques. The structure, morphology, molecularweight change of the scaffolds were investigated using scanning electron microscopy (SEM). Theresults noticed that the average diameter of hybrid nanofiber was similar to that of PLLA/HA fiber,but the surface of hybrid fibers was much coarser because of the introduction of MWNTsnano-particles. The biocompatibility of the scaffold has been investigated by human Dental PulpStem Cells (DPSCs) cell culture on the scaffold. The preliminary results showed that cells werewell adhered and proliferated on the hybrid scaffolds as well as PLLA/HA fibers. Based on theexperimental observations, the aligned nanofibrous PLLA/ MWNTs /HA scaffold could be used asa potential candidate scaffold in dental tissue engineering
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 11-12 (Feb. 2006), p. 521-524 
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Non-woven hemp fiber mat has been used to reinforce unsaturated polyester to makenatural fiber composites. Thermal properties of the hemp fiber mat were investigated to discover therange of heat treatment temperatures suitable for the hemp fiber mat. Loss of weight during heattreatment and absorption of moisture from the environment during storage of the hemp fiber mat werealso studied. Both hand lay-up technique and compression molding were used to make hemp matcomposites. Due to the low fiber fraction, no significant reinforcing effect was found in the compositemade by the hand lay-up technique. The effects of heat treatment of fibers, water content in the fibers,fiber fraction, and manufacture methods on tensile properties of the resulted composites wereinvestigated. Hemp mat composites with tensile strength and modulus comparable to those of [±45°]4glass fiber reinforced polyester were achieved by compression molding at a molding pressure of2MPa
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 11-12 (Feb. 2006), p. 383-386 
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The microstructure of the polyacrylonitrile (PAN) precursors can strongly affect thestructure of the carbon fibers which determine the final mechanical properties of carbon fibers. Theorientation factors ( n f [removed info] ) of PAN precursors under different draw ratios were characterized by thebirefringence ( [removed info]n f ), which was obtained through polarized microscopy. The results show that theincreasing of the draw ratio may enhance the degree of orientation, which can correspondinglyimprove the mechanical properties. However the increasing speed of the orientation factor slowsdown as the draw ratio reached to 8
    Type of Medium: Electronic Resource
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