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  1. 3581
    por Batzdorff, Susanne M.
    Publicado 2001
    “…En 1942 los nazis la tomaron de su convento de Holanda y la deportaron a Auschwitz, donde ella y su hermana Rosa perecieron en las cámaras de gas. En 1998 fue proclamada santa por la Iglesia Católica. …”
    Libro
  2. 3582
    Publicado 2022
    Tabla de Contenidos: “…40 -- 3 Modelling of Reactive Droplet Drying and Polymerisation 41 -- 3.1 Transport in a Reaction-Diffusion System 42 -- 3.1.1 Constant Physical Properties. 44 -- 3.1.2 Consideration of Mixture Effects . 46 -- 3.1.3 Diffusion and Reaction Driven Convection at Variable -- Molar Weights47 -- 3.1.4 Transport of Polymer - Quasi-Steady-State Assumption . 50 -- 3.1.5 Transport of Statistical Moments . 52 -- 3.2 Lumped Modelling - 0D approach 56 -- 3.2.1 General Equations for Reactive Spray Drying57 -- 3.2.2 Spray Polymerisation - Quasi-Steady-State Assumption 58 -- 3.2.3 Spray Polymerisation - Method of Moments. 59 -- 3.3 Distributed Modelling - 1D approach. 60 -- 3.3.1 General Equations of the Droplet Continuum60 -- 3.3.2 Boundary Conditions . 62 -- 3.3.3 Spray Polymerisation - QSSA66 -- 3.3.4 Spray Polymerisation - Method of Moments. 68 -- 3.4 Comparison with Existing Models 69 -- 3.5 Implementational Considerations . 70 -- 3.5.1 Implementation of the Moving Boundary Problem . 70 -- 3.5.2 Boundary Conditions . 71 -- 3.5.3 Treatment of Convection Terms . 72 -- 3.5.4 Implementation of Diffusion. 75 -- 3.6 Verification of the Transport Approach76 -- 3.6.1 Diffusion Driven Convection, Constant Properties 76 -- 3.6.2 Diffusion Driven Convection, Variable Molar Weight 79 -- 3.6.3 Diffusion Driven Convection, Excess Volumes . 82 -- 3.6.4 Reaction Induced Convection85 -- 4 Simulation of Spray Polymerisation 87 -- 4.1 Kinetics and Process Conditions . 88 -- 4.2 Lumped Simulation of Droplet Polymerisation 92 -- 4.2.1 Principle Course of the Process - -- Plain Kinetics, no Monomer Evaporation 92 -- 4.2.2 Effects of Kinetics on the Process 94 -- 4.3 Spatial Effects in Droplet Polymerisation 98 -- 4.3.1 Effect of the Diffusion Coefficient on Concentration Gradients . 99 -- 4.3.2 Inhomogeneities of the Product at Small Diffusion Coefficients, Effect of Moments' Diffusion . 102 -- 4.3.3 Effect of Monomer Evaporation . 106 -- 4.3.4 Pre-polymerisation Before Atomisation . 111 -- 4.3.5 Polymerisation at Elevated Monomer Content in the Drying Gas 116 -- 4.3.6 Influence of Non-Ideality of Activities 122 -- 4.3.7 Interaction with the drying gas125 -- 4.3.8 Applicability of the QSSA model 131 -- 4.4 Summary of Basic Findings on Droplet Polymerisation . 133 -- 4.5 Process Evaluation, Numerical DoEs. 135 -- 4.5.1 DoEs' Setup and Evaluation. 135 -- 4.5.2 Droplet Polymerisation with Solvent in the Feed 138 -- 4.5.3 Bulk Polymerisation within a Droplet 142 -- 4.5.4 Bulk Feed with Pre-Polymerisation before Atomisation . 149 -- 4.6 Discussion and Suggestions for Further Research 153 -- 5 SPH and its Application to Single Droplet Slurry Drying 155 -- 5.1 Mathematical Derivation . 156 -- 5.1.1 SPH Interpolation 156 -- 5.1.2 Integral Approximations . 159 -- 5.1.3 First Derivatives . 160 -- 5.1.4 Laplace-Operator and Divergence of Diffusive Fluxes 162 -- 5.1.5 General Second Derivatives. 165 -- 5.1.6 Choice of Kernel, Smoothing Length and Cut-off Radius 165 -- 5.1.7 Correction of the SPH Approximation 168 -- 5.2 Implementation of Boundary Conditions . 169 -- 5.2.1 Ghost Particles169 -- 5.2.2 Insertion of Boundary Conditions into SPH Equations . 171 -- 5.2.3 Repulsive Forces as Hard Sphere Boundaries172 -- 5.3 Hydrodynamics of an Incompressible Liquid in SPH173 -- 5.3.1 Continuity Equation, Density Evaluation 173 -- 5.3.2 Momentum Balance . 175 -- 5.3.3 Weakly Compressible SPH 178 -- 5.4 Incompressible SPH 179 -- 5.4.1 Boundary Conditions in ISPH182 -- 5.4.2 Boundaries by the Ghost Technique, Wall Boundaries 182 -- 5.4.3 Free Surface Boundaries in ISPH 183 -- 5.4.4 Modifications to ISPH in This Work . 184 -- 5.5 Surface Tension and Wetting . 189 -- 5.5.1 The Interparticle Force Approach 190 -- 5.5.2 The Concept of Surface-Lateral Particle Forces . 195 -- 5.6 Representation of the Solid Phase 200 -- 5.6.1 Primary Particles in the Slurry200 -- 5.6.2 Calculation of Crust Formation . 202 -- 5.7 Modelling of Drying Phenomena in SPH . 205 -- 5.7.1 Heat Conduction . 205 -- 5.7.2 Implementation of Linear Driving Force based Heat and -- Mass Transfer into SPH . 205 -- 5.7.3 Extension to the Second Drying Period . 208 -- 5.7.4 Treatment of Evaporation Concerning Particle Mass and -- Deletion 209 -- 5.7.5 Modelling of Diffusion Driven Drying Involving the Gas -- Phase . 210 -- 5.8 Time Integration 213 -- 5.8.1 Stability Criteria in Explicit Time Stepping. 214 -- 5.8.2 Time Stepping Criteria Employed in This Work and Their -- Reference Length . 216 -- 5.8.3 Implicit Solution of Diffusive Equations . 218 -- 5.8.4 Initialisation of an SPH Calculation . 220 -- 6 Validation of the SPH Implementation 221 -- 6.1 Implicit Solution of Heat Conduction. 221 -- 6.2 Heat and Mass Transfer by Linear Driving Forces 224 -- 6.2.1 Heat Transfer to a Unilaterally Heated Rod. 224 -- 6.2.2 Coupled Heat and Mass Transfer: Droplet Evaporation . 226 -- 6.3 Diffusion Driven Drying by SPH-Grid Coupling . 228 -- 6.4 SPH Flow Solver . 230 -- 6.4.1 ISPH Solution of a Standing Water Column. 230 -- 6.4.2 Free Surface Flow 231 -- 6.4.3 Surface Tension Approach of Pairwise Forces234 -- 6.4.4 Wetting Phenomena . 237 -- 7 Simulation of Structure Evolution During Drying 243 -- 7.1 Simulation of the First Drying Period243 -- 7.2 Simulation of Crust Formation 245 -- 7.2.1 Simulation of the Second Drying Period without Crust -- Formation . 245 -- 7.2.2 Crust Formation by Caught on First Touch. 247 -- 7.2.3 Crust Formation Determined by the Water Content . 249 -- 7.2.4 Effect of the Density Correction . 250 -- 7.3 Influence of Adjustable Parameters on the Structure. 251 -- 7.4 Effect of the Temperature . 256 -- 7.5 Variation of the Resolution 259 -- 7.6 Drying of a Microporous Structure 261 -- 7.7 Comments on numerical efficiency 267 -- 8 Conclusion 269 -- A Numerical Regression by Gaussian Processes 273 -- B FVM Implementation of the Droplet Polymerisation Model 277 -- C Implementational Aspects of SPH 281 -- C.1 Neighbourhood Search281 -- C.1.1 Linked List 281 -- C.1.2 Verlet List . 282 -- C.2 Performance Aspects, Memory Alignment 282.…”
    Libro electrónico
  3. 3583
    Publicado 2023
    Tabla de Contenidos: “…-- Limitations in Bitcoin -- Altcoins -- Overview of blockchain use cases in the industry and government -- Financial services -- Healthcare -- Blockchain use cases led by government -- Ushering in the world of Ethereum -- Smart contract -- EVM -- Account -- Summary -- Chapter 2: Ethereum Architecture and Ecosystem -- Technical requirements -- Introducing the Eth1 Architecture -- Ethereum - the world computer -- Web 2.0, Web3, to the Metaverse -- DApps -- Diving deep into Eth1 -- Accounts -- Two types of accounts -- EOAs -- CAs -- Transactions and messages -- Smart contracts -- Ether and gas -- The EVM -- Addresses and wallets -- Examining mining in Eth 1.0 -- Mining and the consensus protocol -- Ethereum transactions and block structure -- Transaction validation and block verification -- Understanding scaling challenges in Ethereum -- The blockchain scalability trilemma -- Modular blockchain architecture -- Ethereum scaling solutions -- Introducing Beacon Chains and Eth2 -- PoS in Eth2 -- How the beacon chain works -- Benefits from the transition to PoS -- Merging Eth1 and Eth2 -- Merging Eth1 data into Eth2…”
    Libro electrónico
  4. 3584
    por Naidu, S. Mani
    Publicado 2009
    Tabla de Contenidos: “…4.5 Bose-Einstein distribution -- 4.6 Comparison of Maxwell-Boltzmann,Fermi-Dirac and Bose-Einstein distributions -- 4.7 Photon gas -- 4.8 Concept of electron gas and Fermi energy -- 4.9 Density of electron states -- 4.10 Black body radiation -- 4.11 Waves and particles-de Brogliehypothesis-Matter waves -- Matter waves -- Properties of matter waves -- 4.12 Relativistic correction -- 4.13 Planck's quantum theory of black body radiation -- 4.14 Experimental study of matter waves -- 4.14 Schrödinger's time-independent wave equation -- 4.15 Heisenberg uncertainty principle -- 4.16 Physical significance of the wave function -- 4.17 Particle in a potential box -- Formulae -- Solved Problems -- Multiple Choice Questions -- Answers -- Review Questions -- Chapter 5: Electron Theory of Metals -- 5.1 Introduction -- 5.2 Classical free electron theory of metals -- 5.3 Relaxation time, mean free path, mean collision time and drift velocity -- 5.4 Fermi-Dirac distribution -- 5.5 Quantum free electron theory of electrical conduction -- 5.6 Sources of electrical resistance -- 5.7 Band theory of solids -- 5.8 Bloch theorem -- 5.9 Origin of energy bands formation in solids -- 5.10 Velocity and effective mass of an electron -- 5.11 Distinction between metals, semiconductors and insulators -- Formulae -- Solved Problems -- Multiple Choice Questions -- Answers -- Review Questions -- Chapter 6: Dielectric Properties -- 6.1 Introduction -- 6.2 Dielectric constant -- 6.3 Internal or local field -- 6.4 Clausius-Mosotti relation -- 6.5 Orientational, ionic and electronic polarizations -- 6.6 Frequency dependence of polarizability: (Dielectrics in alternating fields) -- 6.7 Piezoelectricity -- 6.8 Ferroelectricity -- 6.9 Frequency dependence of dielectric constant -- Orientational polarization -- Ionic polarization -- Electronic polarization…”
    Libro electrónico
  5. 3585
    Publicado 2019
    Tabla de Contenidos: “…-- 1.3 PROPAGATION OF SOUND THROUGH GAS -- 1.4 MEASURABLE ASPECTS OF SOUND -- PART II: TERMINOLOGY -- 1.5 GENERAL -- Acoustic -- Acoustical -- Imaginary unit -- Harmonically varying quantity -- Instantaneous value -- Root mean square value -- 1.6 STANDARD INTERNATIONAL (SI) UNITS -- 1.7 PRESSURE AND DENSITY -- Static pressure (P0) -- Microbar (μbar) -- Instantaneous sound pressure [p(t)] -- Effective sound pressure (prms) -- Density of air (ρ0) -- 1.8 SPEED AND VELOCITY -- Speed of sound (c) -- Instantaneous particle velocity (particle velocity) [u(t)] -- Effective particle velocity (urms) -- Instantaneous volume velocity [U(t)] -- 1.9 IMPEDANCE -- Acoustic impedance (ZA) (American standard acoustic impedance) -- Specific acoustic impedance (Zs) -- Mechanical impedance (ZM) -- Characteristic impedance (ρ0c) -- 1.10 INTENSITY, ENERGY DENSITY, AND LEVELS -- Sound intensity (I) -- Sound energy density (D) -- Electric power level or acoustic intensity level -- Sound pressure level -- Intensity level (IL) -- Acoustic power level (PWL) -- Sound level -- Band power level (PWLn) -- Band pressure level (BPLn) -- Power spectrum level -- Pressure spectrum level -- NOTES -- Two - The wave equation and solutions -- III: THE WAVE EQUATION -- 2.1 INTRODUCTION -- 2.2 DERIVATION OF THE WAVE EQUATION -- 2.2.1 The equation of motion -- 2.2.2 The gas law -- 2.2.3 The continuity equation -- 2.2.4 The wave equation in rectangular coordinates -- 2.2.5 The wave equation in cylindrical coordinates…”
    Libro electrónico
  6. 3586
    Publicado 2017
    Tabla de Contenidos: “…Front Cover -- HEAT TRANSFER IN AEROSPACE APPLICATIONS -- HEAT TRANSFER IN AEROSPACE APPLICATIONS -- Copyright -- CONTENTS -- PREFACE -- NOMENCLATURE -- 1 - Introduction -- 1.1 HEAT TRANSFER IN GENERAL -- 1.2 SPECIFICS FOR AEROSPACE HEAT TRANSFER -- 1.2.1 Thermal Management -- 1.2.2 Cryogenic Matters -- 1.2.3 Low-Density Heat Transfer -- 1.2.4 Gravity Effects -- 1.2.5 Heat Pipes -- 1.2.6 Auxiliary Equipment -- 1.2.6.1 Heat Exchangers -- 1.2.6.2 Fuel Cells -- 1.2.7 Miscellaneous Topics and SBLI -- REFERENCES -- 2 - Ablation -- 2.1 INTRODUCTION -- 2.2 AN ILLUSTRATIVE EXAMPLE OF ABLATION -- 2.3 ADDITIONAL INFORMATION -- REFERENCES -- 3 - Aerodynamic Heating: Heat Transfer at High Speeds -- 3.1 INTRODUCTION -- 3.2 HIGH VELOCITY FLOW ALONG A FLAT PLATE -- 3.3 CALCULATION OF THE HEAT TRANSFER -- 3.4 TURBULENT FLOW -- 3.5 INFLUENCE OF THE TEMPERATURE DEPENDENCE OF THE THERMOPHYSICAL PROPERTIES -- 3.6 TEMPERATURE DISTRIBUTION IN THE BOUNDARY LAYER -- 3.7 ILLUSTRATIVE EXAMPLE -- 3.8 AN ENGINEERING EXAMPLE OF A THERMAL PROTECTION SYSTEM -- 3.8.1 Thermal Analysis -- 3.8.2 Finite Element Analysis of Heat Transfer -- 3.8.3 Thermal Results -- 3.9 AERODYNAMIC HEAT REDUCTION -- REFERENCES -- FURTHER READING -- 4 - Low-Density Heat Transfer: Rarefied Gas Heat Transfer -- 4.1 INTRODUCTION -- 4.2 KINETIC THEORY OF GASES -- 4.3 FLOW REGIMES FOR RAREFIED GASES -- 4.4 METHODS OF ANALYSIS -- 4.5 INTERACTION BETWEEN GAS AND SURFACE -- 4.6 HEAT TRANSFER AT HIGH VELOCITIES -- 4.7 SLIP FLOW REGIME -- 4.7.1 Heat Conduction in Rarefied Gases -- 4.7.1.1 Parallel Plates -- 4.7.2 Example: Cylinder in Crossflow -- 4.7.3 Sphere -- 4.7.4 Flat Plate: Tangential Flow -- 4.8 TRANSITION REGIME -- 4.9 FREE MOLECULAR FLOW REGIME: THE KNUDSEN FLOW -- 4.10 EXAMPLE: LOW-DENSITY HEAT TRANSFER -- 4.11 EXAMPLE: HEAT TRANSFER IN AN EVACUATED SPACE -- 4.12 MICROCHANNEL APPLICATIONS…”
    Libro electrónico
  7. 3587
    por Macias, Rosario
    Publicado 2010
    Tabla de Contenidos: “…Planisferio celeste con vista del hemisferio norteLas nebulosas; 2 EL SISTEMA SOLAR; Ilustración del libro Harmonia Macrocosmica, de Andrea Cellarius; Formación del sistema solar; Los ""círculos celestiales"", según una ilustración de Gustavo Doré para La Divina Comedia; El Sol; La energía solar; Estructura del Sol; La actividad solar; ACTIVIDAD SOLAR En la zona superior derecha, una masa enorme de gas ardiente es expulsada hacia el espacio, antes de regresar, precipitándose, a la superficie de la estrella…”
    Libro electrónico
  8. 3588
    Publicado 2013
    Tabla de Contenidos: “…Reduced emissions from nitrogen fertilisersReducing methane emissions; Bioenergy; Improving yields; Eating less meat and dairy produce; Co-benefits; Forests; Agriculture; Conflicts; Problems with forest carbon schemes; Bioenergy and biochar; Feeding the world; The way forward; Food, fuel, forests: a balanced approach to land use; Valuing ecosystems: making REDD work; Sustainable biofuels; Sustainable food; 5 Secure and safe energy: adapting to Peak Oil; Cheap energy - the end of an era?; Peak Oil; Peak Gas; Peak Coal; Market concentration: who's got the power?…”
    Libro electrónico
  9. 3589
    Tabla de Contenidos: “…Rodrigues, Joel Borges and Filipe Vaz Gas Sensing with Nanoplasmonic Thin Films Composed of Nanoparticles (Au, Ag) Dispersed in a CuO Matrix Reprinted from: Coatings 2019, 9, 337, doi:10.3390/coatings9050337 91 -- Yuan-Chang Liang and Che-Wei Chang Preparation of Orthorhombic WO3 Thin Films and Their Crystal Quality-Dependent Dye Photodegradation Ability Reprinted from: Coatings 2019, 9, 90, doi:10.3390/coatings9020090. 103 -- Doga Bilican, Samer Kurdi, Yi Zhu, Pau Solsona, Eva Pellicer, Zoe H. …”
    Libro electrónico
  10. 3590
    por Danner, R. P. 1939-
    Publicado 1993
    Tabla de Contenidos: “…EXPERIMENTAL METHODS; 1. Inverse Gas Chromatography (IGC); 2. Piezoelectric Sorption (PZS); 3. …”
    Libro electrónico
  11. 3591
    por Kratz, Jens-Volker
    Publicado 2013
    Tabla de Contenidos: “…Further Reading5: The Nuclear Force and Nuclear Structure; 5.1 Nuclear Forces; 5.2 Charge Independence and Isospin; 5.3 Nuclear Matter; 5.4 Fermi Gas Model; 5.5 Shell Model; 5.6 Collective Motion in Nuclei; 5.7 Nilsson Model; 5.8 The Pairing Force and Quasi-Particles; 5.9 Macroscopic-Microscopic Model; 5.10 Interacting Boson Approximation; 5.11 Further Collective Excitations: Coulomb Excitation, High-Spin States, Giant Resonances; References; Further Reading; 6: Decay Modes; 6.1 Nuclear Instability and Nuclear Spectroscopy; 6.2 Alpha Decay; 6.2.1 Hindrance Factors; 6.2.2 Alpha-Decay Energies…”
    Libro electrónico
  12. 3592
    por Kundu, Pijush K.
    Publicado 2008
    Tabla de Contenidos: “…Classical Thermodynamics; 9. Perfect Gas; 10. Static Equilibrium of a Compressible Medium; Exercises; Literature Cited; Supplemental Reading; Chapter 2. …”
    Libro electrónico
  13. 3593
    por Duarte, F. J.
    Publicado 2003
    Tabla de Contenidos: “…Lasers and Their Emission Characteristics9.1 Introduction; 9.2 Gas Lasers; 9.3 Dye Lasers; 9.4 Solid-State Lasers; 9.5 Semiconductor Lasers; 9.6 Additional Lasers; References; Chapter 10. …”
    Libro electrónico
  14. 3594
    Tabla de Contenidos: “…Environmental performance -- assets and productivity -- Climate change: greenhouse gas emissions -- Air pollution -- Land cover, land use and biodiversity -- Other indicators of environmental performance -- 2.2.2. …”
    Libro electrónico
  15. 3595
    Tabla de Contenidos: “…Energy intensity is highFigure 13. Greenhouse gas emissions intensity is above the OECD average; Deepening skills and innovation; Figure 14. …”
    Libro electrónico
  16. 3596
    Publicado 2015
    Tabla de Contenidos: “…Bankruptcy procedures: recovery rates and duration; Recommendations to raise productivity; Reducing CO2 emissions and energy consumption; Figure 11. Greenhouse gas emissions and energy consumption…”
    Libro electrónico
  17. 3597
    Tabla de Contenidos: “…RomaniaRussian Federation; Saudi Arabia; Senegal; Serbia; Singapore; Slovak Republic; Slovenia; South Africa; Spain; Sri Lanka; Sudan; Sweden; Switzerland; Syrian Arab Republic; Tajikistan; United Republic of Tanzania; Thailand; Togo; Trinidad and Tobago; Tunisia; Turkey; Turkmenistan; Ukraine; United Arab Emirates; United Kingdom; United States; Uruguay; Uzbekistan; Venezuela; Vietnam; Yemen; Zambia; Zimbabwe; PART III: GREENHOUSE-GAS EMISSIONS; 1. SHARES AND TRENDS IN GHGEMISSIONS; 2. …”
    Libro electrónico
  18. 3598
    Publicado 2016
    Tabla de Contenidos: “…Lichtsteuerung mit FHEMHack: Farbtemperatur bei LEDs; Farbtemperatur quantitativ; LED in der Praxis; Hack: Farbtemperatur einstellen; Hack: Temperatur in Farbe umsetzen; Kapitel 3: Hacks zur Verbrauchsmessung; Hack: Energieverbrauch aus Betriebszeiten bestimmen; Stromfluss detektieren; Umrechnung in den Energieverbrauch; Hack: Stromverbrauch am Zähler messen; Messung an der Ferraris-Drehscheibe; Messung an der Leuchtdiode; Messung am Zählwerk; Hack: Gas- und Wasserverbrauch messen; Hack: Verbrauch am Zähler mit S0-Ausgang messen; S0-Zähler mit einem Raspberry Pi…”
    Libro electrónico
  19. 3599
    Tabla de Contenidos: “…Services' value-added in total exports in 2009; Figure 14. Greenhouse gas emissions are rising in Korea; Key policy recommendations to foster a creative economy; Promoting social cohesion and well-being…”
    Libro electrónico
  20. 3600
    Publicado 2010
    Tabla de Contenidos: “…A seven-step method for developing a creative concept; Step 1: Define the communication problem; Ivy college: An admissions video; American Express: American travel in Europe; PSA for battered women; Shell gas international; Step 2: Define the target audience; Information overload; Demographics; Age; Gender; Race and ethnic origin; Education; Income; Psychographics; Emotion; Attitude; Step 3: Define the objective; Step 4: Define the strategy; Attention Span; Step 5: Define the content…”
    Libro electrónico