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  • 1
    Book
    Book
    New York [u.a.] : McGraw-Hill
    Keywords: Ionenaustausch
    Type of Medium: Book
    Pages: 624 S , Ill., graph. Darst , 24 cm
    Series Statement: McGraw-Hill series in advanced chemistry
    Uniform Title: Ionenaustauscher 〈English〉
    DDC: 541.372
    Language: English
    Note: The German edition ... appeared in 1959 as the first volume in a series [entitled Ionenaustauscher] , Includes bibliography , Auf d. Buchrücken : Helffrich
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  • 2
    Online Resource
    Online Resource
    Oxford :Elsevier Science & Technology,
    Keywords: Chemical kinetics. ; Electronic books.
    Description / Table of Contents: This book addresses primarily the engineer in industrial process development, the research chemist in academia and industry, and the graduate student intending to become a reaction engineer. In industry, competitive pressures put a premium on scale-up by large factors to cut development time. To be safe, such development should be based on "fundamental" kinetics that reflect the elementary steps of which the reaction consists. The book forges fundamental kinetics into a practical tool by presenting new, effective methods for elucidation of mechanisms and reduction of complexity without unacceptable sacrifice in accuracy: fewer equations (lesser computational load), fewer coefficients (fewer experiment to determine them). For network elucidation, new rules relating network configurations to observable kinetic behaviour allow incorrect networks to be ruled out by whole classes instead of one by one. For modelling, general equations and algorithms are given from which equations for specific networks can be recovered by simple substitutions. The procedures are illustrated with examples of industrial reactions including, among others, paraffin oxidation, ethoxylation, hydroformylation, hydrocyanation, shape-selective catalysis, ethane pyrolysis, styrene polymerization, and ethene oligomerization. Many of the rate equations have not been published before. The expanded edition of the 2001 title, Kinetics of Homogeneous Multistep Reactions includes new chapters on heterogeneous catalysis and periodic and chaotic re-actions; new sections on adsorption, statistical methods, and lumping; and other new detail. * Contains new chapters on heterogeneous catalysis, oscillations and chaos * Includes new sections on statistical methods, lumping adsorption and software and databases * Provides a better understanding of complex reaction mechanisms.
    Type of Medium: Online Resource
    Pages: 1 online resource (508 pages)
    Edition: 2nd ed.
    ISBN: 9780080473185
    Series Statement: Issn Series ; v.Volume 40
    DDC: 541.394
    Language: English
    Note: Cover -- Preface -- Preface to Second Edition -- Contents -- Introduction -- References -- 1. Concepts, Definitions, Conventions, and Notation -- Classification of Reactions -- Steps, Pathways, Networks, and Cycles -- Rates -- Rate Equations and Activation Energies -- Orders, Molecularities, and Ranks -- Conversion, Yield, and Selectivity -- Phase-Equilibrium and Transport Properties -- Summary -- References -- 2. Fundamentals -- Statistical Basis: Molecularities and Reaction Orders -- Nonideality -- Temperature Dependence -- Compilation of Rate Equations of Multistep Reactions -- Consistency Criteria -- Thermodynamic Consistency -- Microscopic Reversibility -- Adsorption Equilibria and Rates -- Summary -- References -- General References -- Specific References -- 3. Experiments and Their Evaluation -- Research Reactors -- Batch Reactors -- Continuous Stirred-Tank Reactors -- Tubular Reactors -- Differential Reactors -- Techniques for Fast Reactions -- Analytical Support -- Reaction Orders and Apparent Rate Coefficients -- Irreversible Reactions with Single Reactant -- Irreversible Reactions with Two or More Reactants -- Reversible Reactions -- Gas-Phase Reactions at Constant Pressure -- Numerical Work-Up, Error Recognition, and Reliability -- Overview of Statistical Methods * -- Summary -- References -- General References -- Specific References -- 4. Tools for Reduction of Complexity -- Stoichiometric Constraints -- Rate-Controlling Steps -- Pathways of Irreversible Steps -- Pathways with Reversible Steps -- Quasi-Equilibrium Steps -- Quasi-Stationary States: the Bodenstein Approximation* -- Summary -- References -- 5. Elementary Combinations of Reaction Steps -- Reversible Reactions -- First Order-First Order Reactions -- First Order-Second Order Reactions -- Second Order-Second Order and Higher-Order Reactions -- Parallel Steps. , Parallel First-Order Steps -- Parallel Second-Order Steps -- Parallel Steps of Different Orders -- Coupled Parallel Steps -- Sequential Steps -- Sequential First-Order Steps -- Sequential Steps of other Orders -- Competing Steps -- Reactions with Fast Pre-Dissociation -- General Solution for First-Order Networks -- Summary -- References -- General References -- Specific References -- 6. Practical Mathematics of Multistep Reactions -- Simple and Non-Simple Pathways and Networks -- Pseudo-First Order Rate Coefficients -- General Formula for Simple Pathways -- Simple Networks -- Network Reduction -- Rate Equations -- Yield-Ratio Equations [8] -- Non-Simple Pathways and Networks -- Summary -- References -- 7. Network Elucidation -- Order and Rank -- Reaction Orders -- Ranks and Delplot * -- One-Plus" Rate Equations -- Types of One-Plus Rate Equations -- Establishment of One-Plus Rate Equations from Experimental Data -- Relationships between Network Properties and Kinetic Behavior -- Simple Pathways [7,9] -- Simple Networks -- Non-Simple Pathways and Networks -- Other Criteria and Guidelines -- Auxiliary Techniques -- Summary -- References -- 8. Homogeneous Catalysis -- Single-Species Catalysis -- Complex Catalysis -- Acid-Base Catalysis -- Catalysis by Metal Complexes -- Classical Models of Enzyme Kinetics -- Michaelis-Menten Kinetics -- Briggs-Haldane Kinetics -- Reversible Cycles -- Common Features and Plots -- General Formula for Single Catalytic Cycles: Christiansen Mathematics -- Reduction of Complexity -- Relative Abundance of Catalyst-Containing Species * -- Rate-Controlling Steps -- Quasi-Equilibrium Steps -- Irreversible Steps -- Combinations of Approximations -- Relationships between Network Properties and Kinetic Behavior -- Cycles with External Reactions -- Ligand-Deficient Catalysts -- Inhibition, Activation, Decay, and Poisoning. , Multiple Cycles* -- Competing Reactions (Cycles with Common Member) -- Dual- and Multiple-Form Catalysts (Connected Cycles) -- Reactions with Multiple Products (Cycles with Common Pathway Segments) -- Self-Accelerating Reactions (Autocatalysis) -- Product-Promoted Reactions -- Reactant-Inhibited Reactions -- Summary -- References -- General References -- Specific References -- 9. Heterogeneous Catalysis -- Adsorption and Reaction: Langmuir-Hinshelwood Kinetics -- Rate-Controlling Steps: the Hougen-Watson Formula -- Relative Abundance of Catalyst-Surface Species -- Simplification of Rate Equations -- Self-Acceleration -- Model Discrimination -- Criteria for Coefficients -- Concentration Dependence of Initial Rates -- Testing of Predictions -- Mass and Heat Transfer -- Mass Transfer to and from Catalyst Particle -- Mass Transfer and Reaction within Catalyst Particle (Thiele-Damkohler Theory [16,17]) -- Nonisothermal Catalyst Particles [26,27] -- Forced Convection within Catalyst Particle -- Heterogenized" Catalysis -- Shape Selectivity [47-50] -- Catalyst Deactivation [59-64] -- Summary -- References -- General References -- Specific References -- 10. Chain Reactions -- General Properties -- Initiation -- Reactions with Two Chain Carriers: the Hydrogen-Bromide Reaction -- Identification of Relevant Steps -- Transmission of Reactivity: Indirect Initiation, Chain Transfer -- Reactions with More than Two Radicals -- Rice-Herzfeld Mechanisms: Thermal Cracking -- Hydrocarbon Oxidation -- Reactions with Chain Branching: the Hydrogen-Oxygen Reaction -- Inhibition and Induction Periods -- Summary -- References -- General References -- Specific References -- 11. Polymerization -- Types of Polymerization Reactions -- Step-Growth Polymerization -- Functionality -- Mechanism and Rate -- Degree of Polymerization and Molecular Weight -- Radical Polymerization. , Mechanism and Rate * -- Photochemical Initiation -- Chain Length -- Degree of Polymerization and Molecular Weight -- Ionic Polymerization -- Anionic Polymerization -- Cationic Polymerization -- Coordination Polymerization -- Mechanism -- Molecular-Weight Distribution and Degree of Polymerization -- Polymerization Rate -- Chain-Growth Copolymerization -- Polymer Composition: Reactivity Ratios and Copolymer Equation -- Polymerization Rate -- Summary -- References -- General References -- Specific References -- 12. Mathematical Modeling -- Strategies of Process Development -- Effective Fundamental Modeling -- Complete Fundamental Modeling with Bodenstein Approximation -- Streamlining for Large Networks -- Determination of Coefficients -- Shortsightedness" of Elementary Reaction Steps -- Lumping and Continuous Mixtures -- Model Validation -- Summary -- References -- 13. Unusual Thermal and Mass-Transfer Effects -- Anomalous Temperature Dependence -- Negative Apparent Activation Energy: Lower Rate at Higher Temperature -- Change in Rate Control with Change in Temperature -- Rate Maxima and Minima -- Activation Energies of Phenomenological Coefficients -- Uncommon Heat-Transfer Problems -- Uncommon Mass-Transfer Problems -- Mass Transfer and Reaction Rate -- Mass transfer and Selectivity -- Summary -- References -- 14. Instability, Periodic Reactions, and Chaos -- Instability -- Runaway and Multiple Steady States -- Periodic Reactions -- Complex Oscillations and Chaos -- Summary -- References -- General References -- Specific References -- 15. Software and Data Bases -- Software for Numerical Simulation -- Software for Statistics -- Data Bases -- Glossary of Symbols -- Author Index -- Subject Index -- List of Reproduced Illustrations.
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  • 3
    Keywords: Hochschulschrift ; Zypern ; Sulfidlagerstätte ; Mineralisation ; Hydrothermale Lagerstätte ; Mineralogie ; Lagerstättenkunde
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (389 Seiten = 12 MB) , Illustrationen, Graphen, Karten
    Edition: Online-Ausgabe 2023
    Language: German
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  • 4
    Keywords: Forschungsbericht
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (30 Seiten, 1,73 MB) , Diagramme
    Language: German
    Note: Förderkennzeichen BMBF 13FH023IX5 , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
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  • 5
    Keywords: Hawaii-Rücken ; Meeresboden ; Meeresgeologie ; Seismische Prospektion ; Geomagnetik ; Hawaii-Rücken ; Manganknollen ; Tiefsee ; Sonne ; Expedition
    Type of Medium: Book
    Pages: 288 Blätter , Illustrationen, graphische Darstellungen
    Language: German
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  • 6
    Keywords: Forschungsbericht
    Type of Medium: Online Resource
    Pages: Online-Ressource (10 p., 194 Kb.)
    Edition: [Elektronische Ressource]
    Language: German
    Note: Contract BMBF 0311699. - Differences between the printed and electronic version of the document are possible , Also available as printed version , Systemvoraussetzungen: Acrobat reader.
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  • 7
    Online Resource
    Online Resource
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Keywords: Ecology. ; Life sciences. ; Neurosciences. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (418 pages)
    Edition: 1st ed.
    ISBN: 9783642568138
    DDC: 574.5
    Language: German
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  • 8
    Online Resource
    Online Resource
    Berlin :Traugott Bautz Verlag,
    Keywords: Constructive realism. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (221 pages)
    Edition: 1st ed.
    ISBN: 9783869458908
    Series Statement: libri nigri ; v.53
    Language: English
    Note: Cover -- Titelei -- Impressum -- Table of Contents -- Friedrich Wallner: Constructivism without a Constructor -- Vincent Shen: Urban Life-world Manifesting the Dao -- Hugo Renato Ochoa Disselkoen: Konstruktiver Realismus -- Nicole Holzenthal: Culturally different Presuppositions of Ethics and Moral doctrines -- Gerhard Klünger: Epistemology and Freedom of Thinking -- Leonardo Chiatti: Niels Bohr and 20th Century Biology: A Strangification Case? -- Fengli Lan: How to Translate Classical Chinese Medical Texts -- Ephraim Ferreira Medeiros: The Nine Types of Acupuncture Needles -- Gertrude Kubiena: Strangification - an Indispensable Instrument for Practicing TCM -- Andrea-Mercedes Riegel: Qijing bamai - The Eight Extraordinary Vessels -- Barbara Huppmann: No freedom without relationship. -- On the Authors.
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  • 9
    Online Resource
    Online Resource
    Vienna :Springer Wien,
    Keywords: Detectors. ; Electronic books.
    Description / Table of Contents: Biological sensing organs have - due to their optimized specialization throughout evolution - an enormous potential for technical, industrial and medical applications. This applies to sensors specialized for different forms of energy such as optical, electrical, magnetic, mechanical and chemical to name a few of them.This book brings together the first hand knowledge of the frontiers of research in their respective specialization, namely biology, engineering, physical sciences and mathematics opening the way for new research strategies and ways of thinking. The specific topics cover a broad spectrum ranging from biological sensing systems of various organisms, processes of energy transformation and transduction to sensor array fabrication and application. These different fields are linked and glued together by what a sensory system has to accomplish, both in biology and engineering.
    Type of Medium: Online Resource
    Pages: 1 online resource (425 pages)
    Edition: 1st ed.
    ISBN: 9783211997499
    DDC: 570.284
    Language: English
    Note: Intro -- Title Page -- Copyright Page -- Preface -- Table of Contents -- I. General -- 1. Nature as model for technical sensors -- Abstract -- 1. Introduction -- 2. Sensory systems as matched filters -- 3. Design rules of sensory systems -- 4. The fish lateral line -- 4.1 Behavior -- 4.2 Physiology of the lateral line -- 4.3 Dipole localization -- 4.4 Running water -- 5. Biologically inspired hydrodynamic sensors -- Outlook -- Acknowledgments -- References -- 2. From biology to engineering: insect vision and applicaon to robotics -- Abstract -- 1. Introduction -- 1.1 The compound eye -- 1.2 The ocelli -- 1.3 Limitations of compound eyes -- 2. Visual guidance of flight -- 2.1 Stabilization of flight direction and attitude -- 2.2 Avoiding obstacles and negotiating narrowgaps -- 2.3 Regulating flight speed -- 2.4 Regulating flight altitude -- 2.5 Orchestrating smooth landings -- 2.6 Gauging distance travelled -- 2.7 The importance of image velocity incontrolling and regulating flight -- 3. Applications to robotics -- 3.1 Panoramic imaging using syntheticcompound eyes -- 3.2 Panoramic imaging using reflective surfaces -- 3.3 Guidance of robots along corridors -- 3.4 Terrain following guidance for aircraft -- 3.5 Control of aircraft landing -- 3.6 Vision-based odometry -- 3.7 Horizon-based control of aircraft attitude -- Conclusions -- Outstanding Questions -- Outlook -- Acknowledgements -- References -- II. Vision -- A. Seeing -- 3. Color sensors of butterflies -- Abstract -- 1. Introduction: Basic design of insect eyes -- 2. The eye of Papilio -- 2.1 Spectral organization of the eye -- 3. Color vision of Papilio -- 3.1 Color discrimination and its spatial size limit -- 3.2 Wavelength discrimination -- Concluding remarks -- References -- 4. Insect tangential cell analogues and implications for efficient visuomotor control -- Abstract. , 1. Introduction -- 2. Visuomotor feedback in insects -- 3. Wide-field processing of optic flow -- 3.1 Optic flow model -- 3.2 Tangential cell analogues -- 4. Closed loop feedback analysis and synthesis -- 4.1 Extraction of relative state information -- 4.2 Static output feedback -- 5. Experimental validation -- 5.1 Feedback synthesis -- 5.2 Results -- Discussion -- Summary -- Acknowledgments -- References -- 5. Biologically inspired enhancement of dim light video -- Abstract -- 1. Introduction -- 1.1 Biological inspiration -- 1.2 Image processing overview -- 2. Related work -- 3. Contrast enhancement -- 4. Noise reduction -- 4.1 Sharpening extension -- 4.2 Stretching -- 5. Consideration for colour -- 6. Implementation of a graphics processing unit -- 7. Results -- 7.1 Comparison to other methods -- Conclusions -- References -- 6. Event-based silicon retinas and cochleas -- Abstract -- 1. Introduction -- 2. Conventional cameras and silicon retinas -- 2.1 History of retina designs -- 2.2 Achieving precision sensing with imprecise transistors -- 2.3 The dynamic vision sensor (DVS) silicon retina -- 3. Conventional audition and silicon cochleas -- 3.1 History of cochlea designs -- 3.2 Spiking cochlea architectures -- 3.3 Applications of cochleas -- 4. Processing events -- 4.1 Low level visual feature extraction -- 4.2 Tracking -- Summary and discussion -- Acknowledgments -- References -- B. Visual control -- 7. The mode-sensing hypothesis: matching sensors, actuators and flight dynamics -- Abstract -- 1. Introduction -- 2. Formalizing the mode-sensing hypothesis -- 3. Mode-sensing in practice -- 3.1 Estimating self-motion from optic flow:global patterns and local motion detection in insects -- 3.2 Matched filters for optic flow: the lobula plate tangential cells -- 3.3 Sensorimotor coordinate transforma-tion: what axes are covered by LPTCs?. , 3.4 Integration of multisensory information -- 4. Control-theoretic models for visual motion decomposition by LPTCs -- Conclusion -- Acknowledgments -- References -- 8. Adaptive encoding of moon informa on in the fly visual system -- Abstract -- 1. Introduction -- 2. Fly motion vision as a model for rapid sensory-motor control and for the transfer of biological principles to technical systems -- 3. Adaptation of sensory and neuronal systems to instantaneous stimulus levels -- 4. The computational principle of visual motion detection and its implications for the dynamic characteristics of neuronal motion signals -- 5. Motion adaptation changes the neuronal representation of image velocity and other stimulus parameters -- 6. Stimulus-specific adaptation as a possible explanation for improved sensitivity to stimulus discontinuities -- 7. Interactions between different componentsof motion adaptation -- 8. Functional significance of adaptation invisual motion processing -- Conclusions and outlook -- Acknowledgements -- References -- 9. Visual motion sensing and flight path control in flies -- Abstract -- 1. Introduction -- 2. Vision-mediated flight control in flies -- 2.1 Optomotor behavior in tethered flight -- 2.2 Optomotor behavior in free flight -- 3. Modeling visual motion sensing in free flight -- 4. The role of feedback for motor precision -- Conclusions -- References -- III. Olfaction -- 10. Cuticular hydrocarbon sensillum for nestmate recognion in ants -- Abstract -- 1. Introduction -- 2. Chemosensory detection of cuticular hydrocarbons -- 2.1 Cuticular hydrocarbon perception in insects -- 2.2 Electrophysiological recording from contact chemosensilla -- 2.3 Functional identification of the ant cuticular hydrocarbon sensillum -- 3. Perireceptor events in the cuticular hydrocarbon sensillum. , 3.1 Lipophilic ligand-carrier proteins involved in the perireceptor events -- 3.2 Ligand binding of lipophilic ligand carrier proteins -- 4. Chemoreception of cuticular hydrocarbons and related behavior expression -- 4.1 Role of chemosensory proteins in the ant CHC sensillum -- 4.2 Chemical communication by CHCs in ant society -- Conclusions -- List of abbreviations -- References -- 11. Fluid mechanical problems in crustacean active chemoreception -- Abstract -- 1. Introduction -- 2. Aesthetasc distribution and flicking -- 3. Fluid mechanical consequences of flicking -- 4. Comparative aspects -- 5. Adaptations to terrestrial lifestyle -- Conclusions -- Acknowledgments -- References -- 12. Stagnation point flow analysis of odorant detection by permeable moth antennae -- Abstract -- 1. Introduction -- 1.1 The problem of interest -- 2. The physical-mathematical model: flow and concentration fields -- 2.1 Prelimary considerations -- 2.2 The flow field -- 2.3 The concentration field -- 2.4 Fluid properties, physical-chemical constants, and flow conditions -- 3. Numerical solution procedure -- 4. Results and discussion -- Acknowledgements -- References -- IV. Mechanoreception -- A. Hearing -- 13. Man-made versus biological in-air sonar systems -- List of abbreviations -- Abstract -- 1. Introduction -- 2. Man-made in-air sonar systems -- 2.1 Post-processing multiple range readings -- 2.2 Intelligent sonar sensor readings -- 3. Bio-inspired in-air sonar -- 3.1 The Robotic bat head -- 3.2 Experimental results -- Conclusion -- Acknowledgments -- References -- B. Touch -- 14. Active sensing: head and vibrissal velocity during exploratory behaviors of the rat -- Abstract -- 1. Introduction -- 2. Vibrissa mechanics: active movements vs.passive stimulation -- 2.1 Vibrissa and follicle anatomy and muscle mechanics. , 2.2 Different studies measure "vibrissa vel ocity" under very different mechanical conditions -- 2.3 Interpretation of studies using ramp-and-hold stimuli and oscillatory stimuli -- 3. The importance of velocity in object localization -- 3.1 Role of velocity in determining object coordinates: radial distance andhorizontal angle -- 3.2 Variations in whisking velocity during the whisk cycle -- 4. The relation between head velocity and whisking movements -- 4.1 Right-left positional asymmetries are correlated with rotational head velocity -- 4.2 Future directions: Simultaneous measurement of head and vibrissa velocities during contact with an object -- Conclusions -- References -- 15. Touch mechanoreceptors: modeling and simulating the skin and receptors to predict the timing of action potentials -- Abstract -- 1. Introduction -- 1.1 Neurophysiology of touch sensation -- 1.2 Models of touch sensation -- 2. A computational model of the SA-I afferent to produce spike-based output -- 2.1 Skin mechanics - transduction - neural dynamics model -- 2.2 Example results -- 3. Implementation of a spiking-sensor model with a force sensor in a silicone substrate to differentially respond to ramp and hold phases of indentation -- 3.1 Spiking-sensor model -- 3.2 Experimental procedure -- 3.3 Example results -- Conclusions and future directions -- Acknowledgments -- References -- C. Medium motion -- 16. Assessing the mechanical response of groups of arthropod filiform flow sensors -- Abstract -- 1. Arthropod air velocity sensors -- 2. Modeling individual filiform hairs -- 3. Modeling multiple filiform hairs -- 4. Hair responses to biologically relevant stimuli -- Conclusions and outlook -- References -- D. Strain and substrate motion -- 17. Spider strain detection -- Abstract -- 1. Introduction -- 2. Occurrence and topography -- 3. Basic structure. , 4. Sources of load and strains in the exoskeleton.
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  • 10
    Online Resource
    Online Resource
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Keywords: Soil chemistry. ; Electronic books.
    Description / Table of Contents: Proceedings of the NATO Advanced Study Institute on Migration and Fate of Pollutants in Soils and Subsoils held at Maratea, Italy, from May 24 to June 5, 1992.
    Type of Medium: Online Resource
    Pages: 1 online resource (520 pages)
    Edition: 1st ed.
    ISBN: 9783642778629
    Series Statement: Nato asi Subseries G: Series ; v.32
    DDC: 628.55
    Language: English
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