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Zur Lösemitteldiffusion in Polymernanoschichten: Schichtdicken- und Konzentrationsabhängigkeit

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ISBN: 9783731505914 Year: Pages: XVIII, 186 p. DOI: 10.5445/KSP/1000060263 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:01:59
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Solution-casted polymer nanolayers are part of many technical applications. The solvent mass transport parameters are often unknown. However, they are a decisive factor for the determination of drying times, amounts of trace solvent, long-term stability and multilayer intermixing. By setting up a measurement system and conducting experimental and numerical investigations the difference in mass transport characteristics in micro- to nanoscale polymer layers is shown.

Chapter Introduction (Book chapter)

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ISBN: 9780367566753 Year: Pages: 5 Language: English
Publisher: Taylor & Francis
Subject: Agriculture (General)
Added to DOAB on : 2020-09-26 00:03:55
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sorption materials water remediation materials for environmental remediation heavy metal removal sorption of radionuclides "

Chapter Final Remarks (Book chapter)

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ISBN: 9780367566753 Year: Pages: 3 Language: English
Publisher: Taylor & Francis
Subject: Agriculture (General)
Added to DOAB on : 2020-09-26 00:03:58
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Chapter References (Book chapter)

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ISBN: 9780367566753 Year: Pages: 13 Language: English
Publisher: Taylor & Francis
Subject: Agriculture (General)
Added to DOAB on : 2020-09-26 00:04:11
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Abstract

sorption materials water remediation materials for environmental remediation heavy metal removal sorption of radionuclides

Chapter 1.1 Methodology of Synthesis (Book chapter)

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ISBN: 9780367566753 Year: Pages: 11 Language: English
Publisher: Taylor & Francis
Subject: Agriculture (General)
Added to DOAB on : 2020-09-26 00:04:17
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sorption materials water remediation materials for environmental remediation heavy metal removal sorption of radionuclides

Role of Fe-oxides for predicting phosphorus sorption in calcareous soils

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Book Series: Karlsruher mineralogische und geochemische Hefte : Schriftenreihe des Instituts für Mineralogie und Geochemie ISSN: 16182677 ISBN: 9783866442412 Year: Volume: 34 Pages: XIII, 144 p. DOI: 10.5445/KSP/1000008093 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:01:59
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Agronomic efficiency and management of environmental P inputs can be improved by understanding soil-phosphorus interaction. Iron oxides and other clay minerals, P forms, and P sorption in young alluvial and weathered residual soils were determined. Phosphorus retention related to crystallinity and phase distribution of iron oxides. CBD and oxalate extractable iron and aluminum and smectite and kaolinite explained 90% variation while soil CaCO3 role was only insignificant in explaining P sorption.

Suitability of local materials to purify Akaki Sub-Basin water

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Book Series: Karlsruher mineralogische und geochemische Hefte ISSN: 16182677 ISBN: 9783866441514 Year: Volume: 33 Pages: XXI, 225 p. DOI: 10.5445/KSP/1000006938 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:01:58
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Dissolved and suspended particulate matter (SPM) bound Cu, Zn, Ni, As, Pb, Mn, and Fe are common pollutants in surface and groundwater of the Akaki Sub-Basin.This work (1) presents results of water quality analysis and (2) evaluates an innovative approach for removing heavy metals from polluted water using natural materials. Removal capacities of the filter media for Cu, Zn, Ni, and Pb reach 90%. The main removal mechanisms involved are weak sorption and surface precipitation.

Bioactive and Therapeutic Dental Materials

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ISBN: 9783039214198 9783039214204 Year: Pages: 216 DOI: 10.3390/books978-3-03921-420-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-12-09 11:49:15
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This book focus principally on ions-releasing and other smart dental materials for application in preventive and restorative dentistry, as well as in endodontics in the form of adhesives, resin-based composites, pastes, varnishes, liners and dental cements. Special attention has been given to bioactive materials developed to induce cells differentiation/stimulation, hard tissue formation and exert antimicrobial actions. New innovations are necessary to continue to help reinforcing existing technologies and to introduce new paradigms for treating dental disease and restoring teeth seriously compromised by caries lesions via biomimetic and more biological operative approaches. Dental bioactive materials is arguably the latest research area in dentistry and thus the amount of new research is overwhelming. However, in this day and age of evidence based practice it important for this new information to be distilled into a practical and understandable format.

Keywords

orthodontic resin --- photocatalyst TiO2 --- antibacterial --- cariogenic --- early colonizer --- hydrophilic properties --- irradiation --- calcium silicate cements --- pulpal response --- mineralization --- calcific barrier --- inflammation --- odontoblastic layer --- resin cements --- shrinkage stress --- water sorption --- hydroscopic expansion --- photoelastic investigation --- antibacterial --- calcium --- doxycycline --- nanoparticles --- zinc --- dental composites --- antibacterial properties --- silver --- mechanical properties --- degree of conversion --- sorption --- solubility --- color stability --- mechanical properties --- nanotubes --- resin composite --- Streptococcus mutans --- triclosan --- bleaching products --- diffusion --- cytotoxicity --- dental pulp --- stem cells --- nanoporous silica --- glass-ionomer cement --- calcium --- preclinical biosafety --- bone substitute --- mesenchymal stem cells --- ?-tricalcium phosphate --- tissue engineering --- dental sealant --- resin sealant --- calcium phosphate nanoparticles --- long-term ion release --- remineralization --- ion recharge --- dentin --- desmineralization --- microtensile bond strength --- adhesion --- bioactive --- cycling mechanical stress --- dentine --- longevity --- resin-modified glass ionomer cements --- polyacrylic acid treatment --- bone regeneration --- ?-tricalcium phosphate --- calcium sulfate --- bone substitutes --- animal study --- n/a --- adhesion --- cycling mechanical stress --- dentine --- longevity --- glass-ionomer cements --- universal adhesives

Catalytic, Photocatalytic and Electrocatalytic Processes for the Valorisation of CO2

Authors: ---
ISBN: 9783039217786 9783039217793 Year: Pages: 132 DOI: 10.3390/books978-3-03921-779-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-12-09 11:49:16
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Increasing attention is being paid to the development of effective technologies for the sequestration of CO2 and its storage. Hopefully, this will result in processes that can lead to its valorisation as a chemical, e.g., for the regeneration of fuels, but also for the production of intermediates. These are usually energy demands and rather slow processes, requiring energy input and catalysts. Some examples are the innovative strategies for the hydrogenation, photoconversion, or electroreduction of carbon dioxide. This book collects original research papers, reviews, and commentaries focused on the challenges related to the valorisation and conversion of CO2.

Development of Unconventional Reservoirs

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ISBN: 9783039285808 / 9783039285815 Year: Pages: 522 DOI: 10.3390/books978-3-03928-581-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2020-06-09 16:38:57
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The need for energy is increasing and but the production from conventional reservoirs is declining quickly. This requires an economically and technically feasible source of energy for the coming years. Among some alternative future energy solutions, the most reasonable source is from unconventional reservoirs. As the name “unconventional” implies, different and challenging approaches are required to characterize and develop these resources. This Special Issue covers some of the technical challenges for developing unconventional energy sources from shale gas/oil, tight gas sand, and coalbed methane.

Keywords

CO2 huff-n-puff --- condensate recovery --- shale gas condensate reservoir --- fractured tight reservoir --- stress-dependent permeability --- fracture penetration extent --- theoretical model --- shale gas --- multi-stage fracturing horizontal wells --- well interference --- transient pressure --- numerical analysis --- shale gas --- methane adsorption capacity --- Langmuir volume --- Langmuir pressure --- total organic carbon --- clay content --- coal rank --- petrophysical properties --- coalbed methane --- adsorption capacity --- Niutitang formation --- TOC recovery --- organic pores --- porosity --- pore structure --- unconventional reservoirs --- gravel pack --- sand control --- gradation optimization --- visual experiment --- coal measure gases (coalbed gas --- shale gas --- and tight sand gas) --- co-exploitation --- wellbore stability --- wettability --- zeta potential --- drilling fluid --- adsorption and desorption isotherms --- sorption hysteresis --- medium volatile bituminous coal --- equation of state --- NIST-Refprop --- gas compressibility factors --- original gas in-place --- gas shale --- NMR --- helium porosimetry --- clay bound water --- porosity --- pore size distribution --- low-pressure gas adsorption --- MICP --- tight gas reservoirs --- Klinkenberg slippage theory --- high pressure and low flowrate --- gas permeability measurement --- adsorption --- unconventional reservoirs --- pulse decay test --- unsteady state non-equilibrium sorption --- pseudo-steady-state non-equilibrium sorption --- equilibrium sorption --- capillary number --- initial water saturation --- capillary trapping --- residual gas distribution --- nuclear magnetic resonance --- ultra-deep well --- shock loads --- perforated string --- safety analysis --- optimization measures --- convolutional neural network --- well testing --- tight reservoirs --- pressure derivative --- automatic classification --- air flooding --- catalyst-activated low temperature oxidation --- oxidation reaction pathway --- catalytic oxidation characteristics --- Changqing tight oil --- organic-rich shale --- gas adsorption and desorption --- sorption hysteresis --- Langmuir model --- compositional 3D --- dual-porosity system --- total organic carbon (TOC) --- Computer Modelling Group (CMG) --- GEM® --- coalbed methane --- gas content --- diffusion coefficient --- reservoir simulation --- deepwater well --- perforation safety --- peak pressure --- numerical model --- orthogonal test --- limestone and calcareous mudstone interbedding --- gas content --- source-mixed gas --- fractures --- northern Guizhou --- water imbibition --- oil migration --- tight oil reservoirs --- nuclear magnetic resonance --- semi-analytical model --- reorientation fractures --- horizontal well --- tight reservoir --- flow behavior --- tight gas sand --- unconventional --- porosity–permeability --- hydraulic flow units --- electrical resistivity --- NMR --- micro-CT image --- petrophysics --- petrography --- carbon dioxide sequestration --- caprock integrity --- shale alteration --- rock-water-CO2 interaction --- lab tests under reservoir condition --- fractured-vuggy reservoirs --- physical model --- water flooding effect --- injection and production pattern --- gravity differentiation --- flow channel

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