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Untersuchungen zur Feinsedimentdynamik unter Turbulenzeinfluss

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Book Series: Dissertationsreihe am Institut für Hydromechanik der Universität Karlsruhe / Universität Karlsruhe (TH), Institut für Hydromechanik ISSN: 14394111 ISBN: 9783866442054 Year: Volume: 2007/2 Pages: VI, 129 p. DOI: 10.5445/KSP/1000007360 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: General and Civil Engineering
Added to DOAB on : 2019-07-30 20:02:00
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In der vorliegenden Arbeit wurde mit der Entwicklung einer differentiellen Turbulenzsäule das advektionsfreie Turbulenzprofil einer offenen Gerinneströmung im Labor nachgebildet. Hierin konnten die Prozesse der Feinsedimentdynamik nachgebildet und gemessen werden. Die Ergebnisse beschreiben den Prozessablauf in der Feinsedimentdynamik und dienten als Grundlage für die Entwicklung und Validierung eines Modells zur Bilanzierung der Feinsedimentdynamik in der Wassersäule.

Vom Keim zum Kristall - Über die Partikelbildung bei der Fällung schwerlöslicher Feststoffe

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ISBN: 9783866443310 Year: Pages: IX, 205 p. DOI: 10.5445/KSP/1000010089 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:02:00
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Die Feststofferzeugung mit Hilfe von Fällungsprozessen kommt in der chemischen Industrie schon seit Jahrhunderten zum Einsatz. Die grundlegenden Vorgänge während einer Fällung sind aber bis heute noch wenig verstanden. Zur gezielten Einstellung diverser Produktparameter ist für den Anwender die Kenntnis der ablaufenden physikalisch-chemischen Vorgänge bei der Partikelbildung unabdingbar. Das Ziel dieser Arbeit ist es, Hinweise zu geben, wie Partikelbildungsprozesse beeinflusst werden können.

Sicherer, aggregierender Datentransport in drahtlosen Sensornetzen

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ISBN: 9783866441422 Year: Pages: XIV, 220 p. DOI: 10.5445/KSP/1000006778 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Computer Science
Added to DOAB on : 2019-07-30 20:02:01
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In dieser Arbeit wird ein Konzept entwickelt und untersucht, mit dem ein Sensornetz Daten sicher, d. h. vertraulich und authentisch, zu einer Datensenke transportiert.Der Benutzer bestimmt dabei einen Kompromiss zwischen Sicherheit und dem in Sensornetzen kritischen Energiebedarf. Je sicherer Daten im Netz transportiert werden sollen, desto mehr Energie muss für den Transport ausgegeben werden.

Protein Solubility and Aggregation in Bacteria

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889199761 Year: Pages: 127 DOI: 10.3389/978-2-88919-976-1 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Microbiology
Added to DOAB on : 2016-01-19 14:05:46
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Proteins suffer many conformational changes and interactions through their life, from their synthesis at ribosomes to their controlled degradation. Only folded and soluble proteins are functional. Thus, protein folding and solubility are controlled genetically, transcriptionally, and at the protein sequence level. In addition, a well-conserved cellular machinery assists the folding of polypeptides to avoid misfolding and ensure the attainment of soluble and functional structures. When these redundant protective strategies are overcome, misfolded proteins are recruited into aggregates. Recombinant protein production is an essential tool for the biotechnology industry and also supports expanding areas of basic and biomedical research, including structural genomics and proteomics. Although bacteria still represent a convenient production system, many recombinant polypeptides produced in prokaryotic hosts undergo irregular or incomplete folding processes that usually result in their accumulation as insoluble aggregates, narrowing thus the spectrum of protein-based drugs that are available in the biotechnology market. In fact, the solubility of bacterially produced proteins is of major concern in production processes, and many orthogonal strategies have been exploited to try to increase soluble protein yields. Importantly, contrary to the usual assumption that the bacterial aggregates formed during protein production are totally inactive, the presence of a fraction of molecules in a native-like structure in these assemblies endorse them with a certain degree of biological activity, a property that is allowing the use of bacteria as factories to produce new functional materials and catalysts. The protein embedded in intracellular bacterial deposits might display different conformations, but they are usually enriched in beta-sheet-rich assemblies resembling the amyloid fibrils characteristic of several human neurodegenerative diseases. This makes bacterial cells simple, but biologically relevant model systems to address the mechanisms behind amyloid formation and the cellular impact of protein aggregates. Interestingly, bacteria also exploit the structural principles behind amyloid formation for functional purposes such as adhesion or cytotoxicity. In the present research topic we collect papers addressing all the issues mentioned above from both the experimental and computational point of view.

An Optical Grooming Switch for High-Speed Traffic Aggregation in Time, Space and Wavelength

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Book Series: Karlsruhe Series in Photonics & Communications / Karlsruhe Institute of Technology, Institute of Photonics and Quantum Electronics (IPQ) ISSN: 18651100 ISBN: 9783866445024 Year: Volume: 6 Pages: XII, 138 p. DOI: 10.5445/KSP/1000017092 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:58
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In this book a novel optical switch is designed, developed, and tested. The switch integrates optical switching, transparent traffic aggregation/grooming, and optical regener-ation. Innovative switch subsystems are developed that enable these functionalities, including all-optical OTDM-to-WDM converters. High capacity ring interconnection between metro-core rings, carrying 130 Gbit/s OTDM traffic, and metro-access rings carring 43 Gbit/s WDM traffic is experimentally demonstrated. The developed switch features flexibility in bandwidth provisioning, scalability to higher traffic volumes, and backward compatibility with existing network implementations in a future-proof way.

Feststoffbildung bei technischen Fällprozessen. Untersuchungen zur industriellen Fällung von Siliziumdioxid und Calciumcarbonat

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ISBN: 3866440243 Year: Pages: IX, 275 p. DOI: 10.5445/KSP/1000004369 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:02:01
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Die industrielle Erzeugung von Massenprodukten aber auch von hochwertigen Spezialchemikalien erfolgt oftmals mithilfe von Fällprozessen.Die Kenntnis des Zusammenhangs zwischen den stoffsystemspezifischen Grundlagen und der technischen Feststofferzeugung ist jedoch mangelhaft und wird oftmals wenig verstanden. Ziel dieser Arbeit ist es daher, diese beschriebene Lücke zu schließen.

New Trends in Fuzzy Set Theory and Related Items

Authors: --- ---
ISBN: 9783038971238 9783038971245 Year: Pages: 184 DOI: 10.3390/books978-3-03897-124-5 Language: englisch
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Mathematics
Added to DOAB on : 2018-09-04 12:29:08
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Since the launch, in 1965, of the key notion of a fuzzy subset by Lotfi A. Zadeh, this concept has succeeded in growing interest and development. Nowadays, it is undoubtedly one of the most powerful and appealing branches of mathematics. Its range of applications is wide and multidisciplinary, starting from computer sciences and artificial intelligence, but also touching on a vast set of scientific disciplines (physics, engineering, medicine, economics, social choice, etc.).The present Special Issue is devoted to introducing new trends on this theory, from an interdisciplinary point of view, and looking for a wide coverage of topics related to fuzzy set and systems.

Political Games: Strategy, Persuasion, and Learning

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ISBN: 9783039284467 9783039284474 Year: Pages: 80 DOI: 10.3390/books978-3-03928-447-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Philosophy
Added to DOAB on : 2020-04-07 23:07:09
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Political actors navigate a world of incomplete and noisy information. Voters make decisions about turnout and voting amidst campaign promises, credit claiming, and fake news. Policymakers experiment with reforms amidst uncertain predictions from experts and biased interest groups. Parties form coalitions and sign agreements amidst cheap talk and strategic communication. Beyond democracies, autocrats and dictators rule under uncertain threats to their regimes. In all of these environments, some political actors have incentives to learn and gather information, while others have incentives to influence and manipulate this information. This Special Issue addresses the question of how information structures, information transmission, and communication technologies influence political environments and affect the incentives faced by political actors. This is a collection of articles, combining game-theoretical and experimental work. The articles promote novel ideas and address understudied questions, which range from salience determination to microtargeting, ambiguous voting and information naivety. The findings complement the existing literature and suggest rationales for inefficiencies that arise in political environments with incomplete and noisy information.

Multiple-Criteria Decision-Making (MCDM) Techniques for Business Processes Information Management

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ISBN: 9783038976424 Year: Pages: 320 DOI: 10.3390/books978-3-03897-643-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-03-08 11:42:05
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Information management is a common paradigm in modern decision-making. A wide range of decision-making techniques have been proposed in the literature to model complex business and engineering processes. In this Special Issue, 16 selected and peer-reviewed original research articles contribute to business information management in various current real-world problems by proposing crisp or uncertain multiple-criteria decision-making (MCDM) models and techniques, mostly including multi-attribute decision-making (MADM) approaches, in addition to a single paper proposing an interactive multi-objective decision-making (MODM) approach. Particular attention is devoted to information aggregation operators; 65% of papers dealt with this item. The topics of this Special Issue gained attention in Europe and Asia. A total of 48 authors from seven countries contributed to this Issue. The papers are mainly concentrated in three application areas: supplier selection and rational order allocation, the evaluation and selection of goods or facilities, and personnel selection/partner selection. A number of new approaches are proposed that are expected to attract great interest from the research community.

Keywords

multi-criteria decision-making --- group decision-making --- subcontractor evaluation --- MCDM --- MADM --- fuzzy sets --- fuzzy EDAS --- multi-attribute decision making --- projection model --- bi-directional projection model --- Pythagorean uncertain linguistic variable --- rough number --- rough weighted aggregated sum product assessment (WASPAS) --- rough analytical hierarchical process (AHP) --- multiple criteria decision making (MCDM) --- supplier --- supplier selection --- order allocation --- multiobjective optimization --- interactive approach --- desirability function --- Pythagorean fuzzy set --- Muirhead mean --- multiple criteria group decision-making --- multiple attributes decision-making --- group decision-making --- unbalanced linguistic set --- prioritized average operator --- maximizing deviation model --- Pythagorean fuzzy set --- Muirhead mean --- interaction operational laws --- multi-attribute group decision-making --- green supplier --- rough ANP --- trapezoidal fuzzy number --- rough boundary interval --- evidence theory --- trust interval --- multiple attribute decision making --- linguistic cubic variable --- Dombi operations --- linguistic cubic variable Dombi weighted arithmetic average (LCVDWAA) operator --- linguistic cubic variable Dombi weighted geometric average (LCVDWGA) operator --- single-valued linguistic neutrosophic interval linguistic number --- score function --- weighted aggregation operator --- decision making --- multiple attribute decision making --- nonnegative normal neutrosophic number --- aggregation operator --- multi-criteria decision-making --- multi-hesitant fuzzy sets --- aggregation operators --- hesitant probabilistic fuzzy element (HPFE) --- Einstein operations --- hesitant probabilistic fuzzy Einstein aggregation operators --- multiple attribute decision making (MADM). --- ANFIS --- warehouse --- queuing systems --- logistics --- uncertain group decision-making support systems --- multiple criteria decision-making --- reliable group decision-making --- interval multiplicative preference relations --- rough sets --- binary discernibility matrices --- deterministic finite automata --- multiple-criteria decision-making (MCDM) --- multi-attribute decision-making (MADM) --- fuzzy sets --- neutrosophic sets --- rough sets --- aggregation operators --- adaptive neuro-fuzzy inference system (ANFIS)

Metal Complexes Containing Boron Based Ligands

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ISBN: 9783039215843 9783039215850 Year: Pages: 110 DOI: 10.3390/books978-3-03921-585-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Inorganic Chemistry
Added to DOAB on : 2019-12-09 11:49:16
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Boron-based compounds have been utilized as ligands within transition metal complexes for many decades. The diversity of such compounds in terms of varying functional groups is truly exceptional. Boron compounds are of high interest due to the great potential to modify the substituents around the boron center and to produce a broad range of structural motifs. The many different ways these compounds can coordinate or interact with transition metal centers is astonishing. Examples of transition metal complexes containing boron-based ligands include scorpionates, cluster-type borane- and carboranes, borates, and phosphine-stabilized borylene ligands. This Special Issue brings together a collection of articles focusing on recent developments in the aforementioned boron-based ligands. The articles reported in this book will provide the reader with an overview of the types of boron-based ligands which are currently being researched in groups around the world.

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