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Grundlegende Aspekte des 2K-Metallpulverspritzgießens

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Book Series: Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie ISSN: 21929963 ISBN: 9783731502173 Year: Volume: 36 Pages: III, 138 p. DOI: 10.5445/KSP/1000040997 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:58
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An important requirement for the combination of two materials in order to get a low stress and low warpage, crack-free composite component is a timely synchronized sintering behavior of both components. The aim of this work was to analyze the effect of the particle size distribution on the sintering behavior and the resulting consequences of the particle size change for the flow properties during injection molding.

Unit Operations of Particulate Solids

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ISBN: 9781439849095 Year: Pages: 492 DOI: 10.1201/b11059 Language: English
Publisher: Taylor & Francis
Subject: Agriculture (General) --- Chemical Technology
Added to DOAB on : 2020-09-23 00:04:02
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Suitable for practicing engineers and engineers in training, this book covers the most important operations involving particulate solids. Through clear explanations of theoretical principles and practical laboratory exercises, the text provides an understanding of the behavior of powders and pulverized systems. It also helps readers develop skills for operating, optimizing, and innovating particle processing technologies and machinery in order to carry out industrial operations. The author explores common bulk solids processing operations, including milling, agglomeration, fluidization, mixing, and solid-fluid separation.

Wine Traceability

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ISBN: 9783039217687 9783039217694 Year: Pages: 138 DOI: 10.3390/books978-3-03921-769-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Biochemistry
Added to DOAB on : 2019-12-09 11:49:16
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Wine traceability is a central theme in the current world market where consumers are increasingly demanding the quality and origin of food and drink. The wine production chain and wine composition are generally controlled by different laws (International Organization of Vine and Wine (OIV), European Union (EU), and national governments) and need specific documentation. Nevertheless, wine production is subject to fraud. Consequently, the improvement of the methods applied to verify the origin and quality of wines is very important to protect wine consumers and producers. In this book, eight different papers—six research papers and two reviews—address the topic from different points of view.

Micro/Nano Materials for Clean Energy and Environment

Authors: ---
ISBN: 9783039211289 9783039211296 Year: Pages: 123 DOI: 10.3390/books978-3-03921-129-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-08-28 11:41:30
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The Tsinghua University–University of Waterloo Joint Research Center for Micro/Nano Energy & Environment Technology (JCMEET) is a platform. It was established on Nov.11, 2017. The Chairperson of University Council of Tsinghua University, Dr. Xu Chen, and the President of the University of Waterloo, Dr. Feridun Hamdullahpur, attended the opening ceremony and unveiled the nameplate for the joint research center on 29th of March, 2018. The research center serves as a platform for researchers at both universities to conduct joint research in the targeted areas, and to meet regularly for information exchange, talent exchange, and knowledge mobilization, especially in the fields of micro/nano, energy, and environmental technologies. The center focuses on three main interests: micro/nano energy technology, micro/nano pollution control technology, and relevant fundamental research. In order to celebrate the first anniversary of the Joint Research Center, we were invited to serve as the Guest Editors of this Special Issue of Materials focusing on the topic of micro/nano-materials for clean energy and environment. It collects research papers from a broad range of topics related to micro/nanostructured materials aimed at future energy resources, low emission energy conversion, energy storage, energy efficiency improvement, air emission control, air monitoring, air cleaning, and many other related applications. This Special Issue provides an opportunity and example for the international community to discuss how to actively address the energy and environment issues that we are facing.

Current Strategies to Improve the Nutritional and Physical Quality of Baked Goods

Authors: ---
ISBN: 9783039283460 9783039283477 Year: Pages: 164 DOI: 10.3390/books978-3-03928-347-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Nutrition and Food Sciences --- Biology --- Science (General)
Added to DOAB on : 2020-04-07 23:07:09
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The lifestyle of humans is rapidly changing, and, correspondingly, their needs and the current and future megatrends of the food market. It is worth mentioning (1) the preference for natural, simple, and flexible diets that drive the further expansion of plant-focused formulations, (2) the focus on food sustainability (food waste reduction), and (3) the interest in healthy eating as the basis for good health. The hectic routine and rapid urbanization in developed and developing regions, respectively, have shifted consumer preferences toward bread and baked foods, which, interestingly, are often high in sugars and are categorized as having a high glycemic index. Therefore, it is of major importance to address the technological challenges of manufacturing baked goods with high physical and sensory quality that result in positive metabolic responses. This Special Issue seeks to provide fundamental understanding in this area and novel strategies to improve the nutritional properties of baked goods, including a decrease in starch bioaccessibility, sugar reduction, increase in fiber and/or protein content, and the improvement of phytochemical bioactivity. This Special Issue will also cover studies on the physical and sensory improvements of baked goods that may provide a mechanistic understanding to minimize the loss of quality after the incorporation of nutritional-improving ingredients, such as edible byproducts, proteins, or fibers. Last but not least, studies focused on the reduction of additives (clean label) or fat and on the use of sourdough to improve the sensory properties of baked goods will also be included.

Recent Advances in Water and Wastewater Treatment with Emphasis in Membrane Treatment Operations

Authors: ---
ISBN: 9783038976240 Year: Pages: 230 DOI: 10.3390/books978-3-03897-625-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Environmental Engineering --- General and Civil Engineering --- Technology (General)
Added to DOAB on : 2019-04-05 10:34:31
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The present Special Issue brings together recent research findings from renowned scientists in the field of water treatment and assembled contributions on advanced technologies applied to the treatment of wastewater and drinking water, with emphasis on novel membrane treatment technologies. 12 research contributions have highlighted various processes and technologies, which can achieve effective treatment and purification of wastewater and of drinking water, aiming (occasionally) for water reuse. The main topics which are analyzed are the use of novel type membranes in bioreactors, the use of modified membranes, for example using vacuum membrane distillation, the fouling of membranes, the problem of arsenic, antimony and chromium contamination in groundwaters and its removal and the use of novel technologies for more efficient ozonation.

Emerging Advances in Petrophysics. Porous Media Characterization and Modeling of Multiphase Flow

Authors: --- --- ---
ISBN: 9783038977940 9783038977957 Year: Pages: 258 DOI: 10.3390/books978-3-03897-795-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General) --- Geophysics and Geomagnetism
Added to DOAB on : 2019-04-25 16:37:17
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Due to the influence of pore-throat size distribution, pore connectivity, and microscale fractures, the transport, distribution, and residual saturation of fluids in porous media are difficult to characterize. Petrophysical methods in natural porous media have attracted great attention in a variety of fields, especially in the oil and gas industry. A wide range of research studies have been conducted on the characterization of porous media covers and multiphase flow therein. Reliable approaches for characterizing microstructure and multiphase flow in porous media are crucial in many fields, including the characterization of residual water or oil in hydrocarbon reservoirs and the long-term storage of supercritical CO2 in geological formations. This book gathers together 15 recent works to emphasize fundamental innovations in the field and novel applications of petrophysics in unconventional reservoirs, including experimental studies, numerical modeling (fractal approach), and multiphase flow modeling/simulations. The relevant stakeholders of this book are authorities and service companies working in the petroleum, subsurface water resources, air and water pollution, environmental, and biomaterial sectors.

Keywords

Wilkins equation --- non-laminar flow --- turbulence modelling --- porous media --- oil tanker --- temperature drop --- oscillating motion --- numerical simulation --- soil-water characteristic curve --- initial void ratio --- air-entry value --- fractal dimension --- fractal model --- oil properties --- diffusion coefficient --- supercritical CO2 --- Peng-Robinson equation of state (PR EOS) --- CT --- digital rock --- microfractures --- Lattice Boltzmann method --- pore-scale simulations --- tight sandstone --- pore structure --- multifractal --- classification --- Ordos Basin --- loose media --- coal --- porosity --- true density --- bulk density --- overburden pressure --- particle size --- tight conglomerate --- fracture characterization and prediction --- fractal method --- salt rock --- creep --- damage --- fractional derivative --- acoustic emission --- marine gas hydrate --- submarine landslide --- greenhouse gas emission --- lifecycle management --- hazard prevention --- multilayer reservoir --- interlayer interference --- producing degree --- seepage resistance --- wellbore multiphase flow --- inclined angle --- liquid rate --- gas rate --- pressure drawdown model with new coefficients --- base-level cycle --- pore structure --- mouth bar sand body --- Huanghua Depression --- isotopic composition --- methane --- gas hydrate --- South China Sea --- Bakken Formation --- pore structure --- controlling factors --- low-temperature nitrogen adsorption --- petrophysics --- fractal porous media --- unconventional reservoirs --- multiphase flow

Biochar as Soil Amendment: Impact on Soil Properties and Sustainable Resource Management

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ISBN: 9783039282746 9783039282753 Year: Pages: 252 DOI: 10.3390/books978-3-03928-275-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Agriculture (General)
Added to DOAB on : 2020-04-07 23:07:09
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The role of biochar in improving soil fertility is increasingly being recognized and is leading to recommendations of biochar amendment of degraded soils. In addition, biochars offer a sustainable tool for managing organic wastes and to produce added-value products. The benefits of biochar use in agriculture and forestry can span enhanced plant productivity, an increase in soil C stocks, and a reduction of nutrient losses from soil and non-CO2 greenhouse gas emissions. Nevertheless, biochar composition and properties and, therefore, its performance as a soil amendment are highly dependent on the feedstock and pyrolysis conditions. In addition, due to its characteristics, such as high porosity, water retention, and adsorption capacity, there are other applications for biochar that still need to be properly tested. Thus, the 16 original articles contained in this book, which were selected and evaluated for this Special Issue, provide a comprehensive overview of the biological, chemicophysical, biochemical, and environmental aspects of the application of biochar as soil amendment. Specifically, they address the applicability of biochar for nursery growth, its effects on the productivity of various food crops under contrasting conditions, biochar capacity for pesticide retention, assessment of greenhouse gas emissions, and soil carbon dynamics. I would like to thank the contributors, reviewers, and the support of the Agronomy editorial staff, whose professionalism and dedication have made this issue possible.

Entropy Measures for Data Analysis: Theory, Algorithms and Applications

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ISBN: 9783039280322 9783039280339 Year: Pages: 260 DOI: 10.3390/books978-3-03928-033-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Environmental Engineering
Added to DOAB on : 2020-01-07 09:21:22
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Entropies and entropy-like quantities play an increasing role in modern non-linear data analysis. Fields that benefit from this application range from biosignal analysis to econophysics and engineering. This issue is a collection of papers touching on different aspects of entropy measures in data analysis, as well as theoretical and computational analyses. The relevant topics include the difficulty to achieve adequate application of entropy measures and the acceptable parameter choices for those entropy measures, entropy-based coupling, and similarity analysis, along with the utilization of entropy measures as features in automatic learning and classification. Various real data applications are given.

Keywords

experiment of design --- empirical mode decomposition --- signal analysis --- similarity indices --- synchronization analysis --- auditory attention --- entropy measure --- linear discriminant analysis (LDA) --- support vector machine (SVM) --- auditory attention classifier --- electroencephalography (EEG) --- vague entropy --- distance induced vague entropy --- distance --- complex fuzzy set --- complex vague soft set --- entropy, entropy visualization --- entropy balance equation --- Shannon-type relations --- multivariate analysis --- machine learning evaluation --- data transformation --- sample entropy --- treadmill walking --- center of pressure displacement --- dual-tasking --- analog circuit --- fault diagnosis --- cross wavelet transform --- Tsallis entropy --- parametric t-distributed stochastic neighbor embedding --- support vector machine --- information transfer --- Chinese stock sectors --- effective transfer entropy --- market crash --- system coupling --- cross-visibility graphs --- image entropy --- geodesic distance --- Dempster-Shafer evidence theory --- uncertainty of basic probability assignment --- belief entropy --- plausibility transformation --- weighted Hartley entropy --- Shannon entropy --- learning --- information --- novelty detection --- non-probabilistic entropy --- learning systems --- permutation entropy --- embedded dimension --- short time records --- signal classification --- relevance analysis --- global optimization --- meta-heuristic --- firefly algorithm --- cross-entropy method --- co-evolution --- symbolic analysis --- ordinal patterns --- Permutation entropy --- conditional entropy of ordinal patterns --- Kolmogorov-Sinai entropy --- algorithmic complexity --- information entropy --- particle size distribution --- selfsimilar measure --- simulation --- data analysis --- entropy --- entropy measures --- automatic learning

Fluid Flow in Fractured Porous Media

Authors: ---
ISBN: 9783039214235 9783039214242 Year: Volume: 1 Pages: 578 DOI: 10.3390/books978-3-03921-424-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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The fluid flow in fracture porous media plays a significant role in the assessment of deep underground reservoirs, such as through CO2 sequestration, enhanced oil recovery, and geothermal energy development. Many methods have been employed—from laboratory experimentation to theoretical analysis and numerical simulations—and allowed for many useful conclusions. This Special Issue aims to report on the current advances related to this topic. This collection of 58 papers represents a wide variety of topics, including on granite permeability investigation, grouting, coal mining, roadway, and concrete, to name but a few. We sincerely hope that the papers published in this Special Issue will be an invaluable resource for our readers.

Keywords

scanning electron microscope (SEM) images --- permeability --- high temperature --- Darcy’s law --- confining pressures --- chemical grouts --- grain size of sand --- initial water contained in sand --- grouted sand --- macroscopic mechanical behaviors --- microstructure characteristics --- ductile failure --- gas concentration --- gob-side entry retaining (GER) --- limestone roof --- roof-cutting resistance --- roadside backfill body (RBB) --- solid backfill coal mining --- goaf --- water soaked height --- loose gangue backfill material --- deformation --- crushing ratio --- fracture grouting --- cement–silicate grout --- geophysical prospecting --- seepage --- Yellow River Embankment --- contiguous seams --- water-dripping roadway --- roadway deformation --- bolt support --- pervious concrete --- permeability coefficient --- porosity --- pore distribution characteristics --- strength --- soil–structure interface --- internal erosion --- critical hydraulic gradient --- orthogonal tests --- Pseudo Steady-State (PPS) constant --- finite-conductivity fracture --- conductivity-influence function --- normalized conductivity-influence function --- circular closed reservoir --- glutenite --- gravel --- hydraulic fracture --- numerical simulation --- propagation --- glauberite cavern for storing oil &amp --- gas --- thermal-hydrological-chemical interactions --- temperature --- brine concentration --- microstructure --- micro-CT --- damage --- cyclic heating and cooling --- physical and mechanical parameters --- failure mode --- acoustic emission --- anisotropy --- bedding plane orientation --- coal --- gas --- adsorption–desorption --- laboratory experiment --- pore pressure --- hydro-mechanical coupling --- fracture closure --- constitutive model --- effective stress --- debris flow --- dynamic characteristics --- numerical analysis --- debris-resisting barriers --- coal measures sandstone --- creep characteristics --- seepage pressure --- seepage-creep --- microscopic morphology --- Darcy flow --- heterogeneity --- numerical manifold method --- high-order --- refraction law --- hydraulic fracture network --- cohesive element method --- coal seams --- fracture propagation --- discontinuous natural fracture --- secondary fracture --- fault water inrush --- coupled THM model --- nonlinear flow in fractured porous media --- numerical model --- warning levels of fault water inrush --- bentonite-sand mixtures --- differential settlement --- deformation --- hydraulic conductivity --- crack --- geogrid --- enhanced permeability --- deviatoric stress --- mechanical behavior transition --- CH4 seepage --- volumetric strain --- strain-based percolation model --- rock-soil mechanics --- soft filling medium --- segmented grouting --- split grouting --- model experiment --- reinforcement mechanism --- longwall mining --- gob behaviors --- stress relief --- permeability --- gas drainage --- hard and thick magmatic rocks --- orthogonal ratio test --- similar simulation --- fracture --- bed separation --- disaster-causing mechanism --- artificial joint rock --- shear-flow coupled test --- hydraulic aperture --- roughness --- seepage pressure --- mixing --- conservative solute --- fractal --- roughness --- fracture --- transversely isotropic rocks --- failure mechanism --- particle flow modeling --- interface --- n/a --- fractured porous rock mass --- grouting experiment --- visualization system --- flow law --- layered progressive grouting --- sandstone and mudstone particles --- rheological deformation --- segmented rheological model --- rheological limit strain --- rheological test --- water-rock interaction --- dry-wet cycles --- slope stability --- laboratory experiment --- mechanical properties --- Xinjiang --- land reclamation --- management period --- soil particle size --- fluid flow in reclaimed soil --- effluents --- soil properties --- cohesive soils --- contamination --- time variation --- stabilization --- mixer --- viscoelastic fluid --- pore structure --- orthogonal test --- fluid–solid coupling theory --- similar-material --- regression equation --- optimum proportioning --- hydraulic fracturing --- gas fracturing --- oriented perforation --- fracture propagation --- damage mechanics --- fluid viscosity --- CO2 flooding --- supercritical CO2 --- CO2 geological storage --- tight sandstone gas reservoirs --- enhanced gas recovery --- flotation --- coal particle --- collision angle --- initial settlement position --- particle velocity --- adhesion efficiency --- green mining --- paste-like slurry --- XRD --- intelligent torque rheometer --- on-site monitoring --- cyclic wetting-drying --- deterioration --- sandstone --- mudstone --- elastic modulus --- uniaxial compressive strength --- permeability characteristics --- grading broken gangue --- compressive stress --- compression deformation --- mine shaft --- alternate strata --- surrounding rock --- shaft lining --- relief excavation --- consolidation process --- unsaturated soil --- semi-analytical solution --- impeded drainage boundary --- excess pore-pressures --- coalbed methane (CBM) --- soft coal masses --- pore structure --- fractal pore characteristics --- hydraulic fractures --- PPCZ --- multitude parameters --- propagation pattern --- stress interference --- naturally fracture --- filtration effects --- grout penetration --- unified pipe-network method --- two-phase flow --- fractured porous medium --- new cementitious material --- cement-based paste discharge --- XRD --- TG/DTG --- SEM --- MIP --- mechanical behaviors --- rock fracture --- shear-flow coupled test --- constant normal stiffness conditions --- transmissivity --- hydraulic aperture --- water inrush prevention --- backfill mining --- strata movement --- ground pressure --- floor failure depth --- water–rock interaction --- degradation mechanism --- mixed mode fracture resistance --- fracture criteria --- T-stress --- hydro-power --- high-steep slope --- fractured rock --- permeability --- seepage control --- gas-bearing coal --- electrical potential --- charge separation --- gas adsorption --- damage evolution --- Unsaturation --- chloride --- concrete --- coupling model --- numerical calculation --- debris flow --- forecasting --- rainfall-unstable soil coupling mechanism(R-USCM) --- scoops3D --- Jiaohe --- non-aqueous phase liquid --- finite element method --- two-phase flow --- mixed-form formulation --- FLAC --- pore structure --- movable fluid --- tight sandstones --- Ordos Basin --- tectonically deformed coal --- coal and gas outburst --- coal-like material --- mechanical properties --- deformation feature --- adsorption/desorption properties --- minerals --- mechanical properties --- uniaxial compressive strength --- crack distribution characteristics --- discrete element method --- lignite --- nitric acid modification --- pore structure --- surface characteristics --- adsorption performance --- n/a

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