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Books > Science & Mathematics > Physics > Classical mechanics

Turbulence in Fluid Flows - A Dynamical Systems Approach (Hardcover, 1993 ed.): George R. Sell, Ciprian Foias, Roger Temam Turbulence in Fluid Flows - A Dynamical Systems Approach (Hardcover, 1993 ed.)
George R. Sell, Ciprian Foias, Roger Temam
R4,125 Discovery Miles 41 250 Ships in 18 - 22 working days

The articles in this volume are based on recent research on the phenomenon of turbulence in fluid flows collected by the Institute for Mathematics and its Applications. This volume looks into the dynamical properties of the solutions of the Navier-Stokes equations, the equations of motion of incompressible, viscous fluid flows, in order to better understand this phenomenon. Although it is a basic issue of science, it has implications over a wide spectrum of modern technological applications. The articles offer a variety of approaches to the Navier-Stokes problems and related issues. This book should be of interest to both applied mathematicians and engineers.

Introduction to Reactive Gas Dynamics (Hardcover, New): Raymond Brun Introduction to Reactive Gas Dynamics (Hardcover, New)
Raymond Brun
R3,019 Discovery Miles 30 190 Ships in 10 - 15 working days

In the high energy gas flows, associating high velocities and high temperatures, physical and chemical processes such as molecular vibrational excitation, dissociation, ionisation or various reactions take palce and deeply influence the structure of the flows. The characteristic times of these processes have the same order of magnitude as aerodynamic characteristic times so that these reactive media are generally in thermodynamic and chemical non-equilibrium. This book presents a general introductory study of these media. In the first part their fundamental statistical aspects are described, starting from their discrete structure and taking into account the interactions between elementary particles: the transport phenomena, relaxation and kinetics as well as their coupling are thus analysed and illustrated by many examples. The second part deals with the macroscopic re-entry bodies. Finally the experimental aspects of these flows, their simulations in shock tube and shock tunnel are described as well as their application, particularly in the aero- spatial domain.
This book is intended for researchers and students that have acquired basic knowledge in thermodynamics, statistical physics and fluid mechanics. It must also interest the engineers engaged in research and industry related to the applications of the reactive flows, in particular in the aerospace field and, more generally, all the researchers trying to simulate and calculate complex reactive flows.

Nonequilibrium Statistical Physics - Linear Irreversible Processes (Hardcover): Noelle Pottier Nonequilibrium Statistical Physics - Linear Irreversible Processes (Hardcover)
Noelle Pottier
R2,882 Discovery Miles 28 820 Ships in 10 - 15 working days

While systems at equilibrium are treated in a unified manner through the partition function formalism, the statistical physics of out-of-equilibrium systems covers a large variety of situations that are often without apparent connection. This book proposes a unified perspective on the whole set of systems near equilibrium: it brings out the profound unity of the laws which govern them and gathers a large number of results usually fragmented in the literature. The reader will find in this book a pedagogical account of the fundamental results: physical origins of irreversibility, fluctuation-dissipation theorem, Boltzmann equation, linear response, Onsager relations, transport phenomena, Langevin and Fokker-Planck equations. The book's comprehensive organisation makes it valuable both as a textbook about irreversible phenomena and as a reference book for researchers.

Parallel PnP Robots - Parametric Modeling, Performance Evaluation and Design Optimization (Hardcover, 1st ed. 2021): Guanglei... Parallel PnP Robots - Parametric Modeling, Performance Evaluation and Design Optimization (Hardcover, 1st ed. 2021)
Guanglei Wu, Huiping Shen
R2,675 Discovery Miles 26 750 Ships in 18 - 22 working days

This book discusses the parametric modeling, performance evaluation, design optimization and comparative study of the high-speed, parallel pick-and-place robots. It collects the modeling methodology, evaluation criteria and design guidelines for parallel PnP robots to provide a systematic analysis method for robotic developers. Furthermore, it gathers the research results previously scattered in many prestigious international journals and conference proceedings and methodically edits them and presents them in a unified form. The book is of interest to researchers, R&D engineers and graduate students in industrial parallel robotics who wish to learn the core principles, methods, algorithms, and applications.

Advanced Analytical Methods in Tribology (Hardcover, 1st ed. 2018): Martin Dienwiebel, Maria-Isabel De Barros Bouchet Advanced Analytical Methods in Tribology (Hardcover, 1st ed. 2018)
Martin Dienwiebel, Maria-Isabel De Barros Bouchet
R4,279 Discovery Miles 42 790 Ships in 18 - 22 working days

This book presents the basics and methods of nanoscale analytical techniques for tribology field. It gives guidance to the application of mechanical, microstructural, chemical characterization methods and topography analysis of materials. It provides an overview of the of state-of-the-art for researchers and practitioners in the field of tribology. It shows different examples to the application of mechanical, microstructural, chemical characterization methods and topography analysis of materials. Friction and Wear phenomena are governed by complexe processes at the interface of sliding surfaces. For a detailed understanding of these phenomena many surface sensitive techniques have become available in recent years. The applied methods are atom probe tomography, in situ TEM, SERS, NEXAFS, in situ XPS, nanoindentation and in situ Raman spectroscopy. A survey of new related numerical calculations completes this book. This concerns ab-initio coupling, numerical calculations for mechanical aspects and density functional theory (DFT) to study chemical reactivity.

Normal Modes and Localization in Nonlinear Systems (Hardcover, 2001 ed.): Alexander F. Vakakis Normal Modes and Localization in Nonlinear Systems (Hardcover, 2001 ed.)
Alexander F. Vakakis
R4,244 Discovery Miles 42 440 Ships in 18 - 22 working days

The nonlinear normal modes of a parametrically excited cantilever beam are constructed by directly applying the method of multiple scales to the governing integral-partial differential equation and associated boundary conditions. The effect of the inertia and curvature nonlin earities and the parametric excitation on the spatial distribution of the deflection is examined. The results are compared with those obtained by using a single-mode discretization. In the absence of linear viscous and quadratic damping, it is shown that there are nonlinear normal modes, as defined by Rosenberg, even in the presence of a principal parametric excitation. Furthermore, the nonlinear mode shape obtained with the direct approach is compared with that obtained with the discretization approach for some values of the excitation frequency. In the single-mode discretization, the spatial distribution of the deflection is assumed a priori to be given by the linear mode shape centsn, which is parametrically excited, as Equation (41). Thus, the mode shape is not influenced by the nonlinear curvature and nonlinear damping. On the other hand, in the direct approach, the mode shape is not assumed a priori; the nonlinear effects modify the linear mode shape centsn. Therefore, in the case of large-amplitude oscillations, the single-mode discretization may yield inaccurate mode shapes. References 1. Vakakis, A. F., Manevitch, L. I., Mikhlin, Y. v., Pilipchuk, V. N., and Zevin A. A., Nonnal Modes and Localization in Nonlinear Systems, Wiley, New York, 1

The Science of Musical Sound - Volume 1: Stringed Instruments, Pipe Organs, and the Human Voice (Hardcover, 1st ed. 2018):... The Science of Musical Sound - Volume 1: Stringed Instruments, Pipe Organs, and the Human Voice (Hardcover, 1st ed. 2018)
William Ralph Bennett Jr; Edited by Andrew C. H. Morrison; Foreword by Christy K. Holland
R2,079 Discovery Miles 20 790 Ships in 10 - 15 working days

This textbook is a product of William Bennett's work in developing and teaching a course on the physics of music at Yale University to a diverse audience of musicians and science students in the same class. The book is a culmination of over a decade of teaching the course and weaves together historical descriptions of the physical phenomena with the author's clear interpretations of the most important aspects of the science of music and musical instruments. Many of the historical examples are not found in any other textbook available on the market. As the co-inventor of the Helium-Neon laser, Prof. Bennett's knowledge of physics was world-class. As a professor at one of the most prestigious liberal-arts universities in the world, his appreciation for culture and humanities shines through. The book covers the basics of oscillations, waves and the analysis techniques necessary for understanding how musical instruments work. All types of stringed instruments, pipe organs, and the human voice are covered in this volume. A second volume covers the remaining families of musical instruments as well as selected other topics. Readers without a background in acoustics will enjoy learning the physics of the Science of Musical Sound from a preeminent scientist of the 20th century. Those well versed in acoustics will discover wonderful illustrations and photographs depicting familiar concepts in new and enlightening ways.

Boundary Plasma Physics - An Accessible Guide to Transport, Detachment, and Divertor Design (Hardcover, 1st ed. 2022): Fulvio... Boundary Plasma Physics - An Accessible Guide to Transport, Detachment, and Divertor Design (Hardcover, 1st ed. 2022)
Fulvio Militello
R4,021 Discovery Miles 40 210 Ships in 10 - 15 working days

This book serves as an introduction to boundary plasma physics, providing an accessible entry point to the topic of plasma exhaust in magnetic confinement devices. While it delivers a concise, rigorous, and comprehensive account of all the major scientific topics relevant to those working on the subject, it also remains accessible and easy to consult due to its modular and compact structure. Beginning with the basic kinetic and fluid descriptions of plasma, and advancing through plasma-surface interactions, filamentary transport and plasma detachment, to conclude with a discussion of divertor configurations, this book represents a necessary and timely addition to the literature on the fast-growing field of boundary plasma physics. It will appeal to experienced theoreticians or experimentalists looking to enter the field as well as graduate students wishing to learn about it.

Computational Mechanics of Fluid-Structure Interaction - Computational Methods for Coupled Fluid-Structure Analysis (Hardcover,... Computational Mechanics of Fluid-Structure Interaction - Computational Methods for Coupled Fluid-Structure Analysis (Hardcover, 1st ed. 2022)
Rajeev Kumar Jaiman, Vaibhav Joshi
R2,695 Discovery Miles 26 950 Ships in 18 - 22 working days

This book is intended to provide a compilation of the state-of-the-art numerical methods for nonlinear fluid-structure interaction using the moving boundary Lagrangian-Eulerian formulation. Single and two-phase viscous incompressible fluid flows are considered with the increasing complexity of structures ranging from rigid-body, linear elastic and nonlinear large deformation to fully-coupled flexible multibody system. This book is unique with regard to computational modeling of such complex fluid-structure interaction problems at high Reynolds numbers, whereby various coupling techniques are introduced and systematically discussed. The techniques are demonstrated for large-scale practical problems in aerospace and marine/offshore engineering. This book also provides a comprehensive understanding of underlying unsteady physics and coupled mechanical aspects of the fluid-structure interaction from a computational point of view. Using the body-fitted and moving mesh formulations, the physical insights associated with structure-to-fluid mass ratios (i.e., added mass effects), Reynolds number, large structural deformation, free surface, and other interacting physical fields are covered. The book includes the basic tools necessary to build the concepts required for modeling such coupled fluid-structure interaction problems, thus exposing the reader to advanced topics of multiphysics and multiscale phenomena.

Hyperbolic Problems: Theory, Numerics, Applications - Eighth International Conference in Magdeburg, February/March 2000 Volume... Hyperbolic Problems: Theory, Numerics, Applications - Eighth International Conference in Magdeburg, February/March 2000 Volume II (Hardcover, 2001 ed.)
Heinrich Freistuhler, Gerald Warnecke
R2,913 Discovery Miles 29 130 Ships in 18 - 22 working days

Hyperbolic partial differential equations describe phenomena of material or wave transport in physics, biology and engineering, especially in the field of fluid mechanics. The mathematical theory of hyperbolic equations has recently made considerable progress. Accurate and efficient numerical schemes for computation have been and are being further developed.
This two-volume set of conference proceedings contains about 100 refereed and carefully selected papers. The books are intended for researchers and graduate students in mathematics, science and engineering interested in the most recent results in theory and practice of hyperbolic problems.
Applications touched in these proceedings concern one-phase and multiphase fluid flow, phase transitions, shallow water dynamics, elasticity, extended thermodynamics, electromagnetism, classical and relativistic magnetohydrodynamics, cosmology. Contributions to the abstract theory of hyperbolic systems deal with viscous and relaxation approximations, front tracking and wellposedness, stability of shock profiles and multi-shock patterns, traveling fronts for transport equations. Numerically oriented articles study finite difference, finite volume, and finite element schemes, adaptive, multiresolution, and artificial dissipation methods.

Delay Controlled Partial Synchronization in Complex Networks (Hardcover, 1st ed. 2019): Jakub Sawicki Delay Controlled Partial Synchronization in Complex Networks (Hardcover, 1st ed. 2019)
Jakub Sawicki
R2,653 Discovery Miles 26 530 Ships in 18 - 22 working days

The focus of this thesis are synchronization phenomena in networks and their intrinsic control through time delay, which is ubiquitous in real-world systems ranging from physics and acoustics to neuroscience and engineering. We encounter synchronization everywhere and it can be either a helpful or a detrimental mechanism. In the first part, after a survey of complex nonlinear systems and networks, we show that a seemingly simple system of two organ pipes gives birth to complex bifurcation and synchronization scenarios. Going from a 2-oscillator system to a ring of oscillators, we encounter the intriguing phenomenon of chimera states which are partial synchrony patterns with coexisting domains of synchronized and desynchronized dynamics. For more than a decade scientist have tried to solve the puzzle of this spontaneous symmetry-breaking emerging in networks of identical elements. We provide an analysis of initial conditions and extend our model by the addition of time delay and fractal connectivities. In the second part, we investigate partial synchronization patterns in a neuronal network and explain dynamical asymmetry arising from the hemispheric structure of the human brain. A particular focus is on the novel scenario of partial relay synchronization in multiplex networks. Such networks allow for synchronization of the coherent domains of chimera states via a remote layer, whereas the incoherent domains remain desynchronized. The theoretical framework is demonstrated with different generic models.

Hydraulic Fracturing Chemicals and Fluids Technology (Paperback, 2nd edition): Johannes Fink Hydraulic Fracturing Chemicals and Fluids Technology (Paperback, 2nd edition)
Johannes Fink
R2,727 Discovery Miles 27 270 Ships in 10 - 15 working days

Petroleum engineers continue to need cost saving and environmentally sustainable products and methods for today's hydraulic fracturing operations. Hydraulic Fracturing Chemicals and Fluid Technology, Second Edition, continues to deliver an easy-to-use manual of fluid formulations to meet specific job needs. Enhanced with more environmental aspects, this reference helps engineers and fluid specialists select and use the appropriate chemicals for any hydraulic fracturing job. New information concerning nanotechnology applications such as wellbore sealant and proppants are added to enhance operations in a sustainable manner while saving on production costs. Other updates include low recovery of fracturing water in shale, surfactants for waterless hydraulic fracturing, and expanded produced water treatment. Rounding out with updated references and patents for easy reference, Hydraulic Fracturing Chemicals and Fluid Technology, Second Edition, gives engineers a critical guide on selecting better products to boost productions while strengthening environmental enhancement and consideration.

Thermal and Reliability Criteria for Nuclear Fuel Safety (Hardcover): Maksym Maksymov, Svitlana Alyokhina, Oleksandr Brunetkin Thermal and Reliability Criteria for Nuclear Fuel Safety (Hardcover)
Maksym Maksymov, Svitlana Alyokhina, Oleksandr Brunetkin
R3,099 Discovery Miles 30 990 Ships in 18 - 22 working days

The book covers basic approaches to the nuclear fuel state of energy reactors in the last stages of the nuclear fuel cycle, these have been developed by the authors based on Ukrainian Nuclear Power Plant (NPP) operational experience. The book starts by looking at the physical safety basis of water-water energetic reactor (WWER) nuclear fuel. It goes on to discuss modern approaches to the heat exchange modelling in nuclear power plant equipment. Next, the safety criteria when making a decision about dry storage for WWER-1000 fuel assembly are discussed. Then the effect of reactor capacity cyclic changes on energy accumulation of creep formations in fuel cladding is covered in full, along with a chapter on the analysis of WWER-1000 fuel cladding failure. Finally, the book finishes with a description of thermal safety criteria for dry storage of spent nuclear fuel. The book is essential reading for anyone concerned with NPP maintenance and safety.

The Nonlinear Schroedinger Equation - Self-Focusing and Wave Collapse (Hardcover, 1999 ed.): Catherine Sulem, Pierre-Louis Sulem The Nonlinear Schroedinger Equation - Self-Focusing and Wave Collapse (Hardcover, 1999 ed.)
Catherine Sulem, Pierre-Louis Sulem
R4,063 Discovery Miles 40 630 Ships in 10 - 15 working days

This monograph aims to fill the gap between the mathematical literature which significantly contributed during the last decade to the understanding of the collapse phenomenon, and applications to domains like plasma physics and nonlinear optics where this process provides a fundamental mechanism for small scale formation and wave dissipation. This results in a localized heating of the medium and in the case of propagation in a dielectric to possible degradation of the material. For this purpose, the authors have chosen to address the problem of wave collapse by several methods ranging from rigorous mathematical analysis to formal asymptotic expansions and numerical simulations.

Fluid-Structure-Sound Interactions and Control - Proceedings of the 5th Symposium on Fluid-Structure-Sound Interactions and... Fluid-Structure-Sound Interactions and Control - Proceedings of the 5th Symposium on Fluid-Structure-Sound Interactions and Control (Hardcover, 1st ed. 2021)
Marianna Braza, Yannick Hoarau, Yu Zhou, Anthony D. Lucey, Lixi Huang, …
R5,198 Discovery Miles 51 980 Ships in 18 - 22 working days

This book contains a thorough and unique record of recent advances in the important scientific fields fluid-structure interaction, acoustics and control of priority interest in the academic community and also in an industrial context regarding new engineering designs. It updates advances in these fields by presenting state-of-the-art developments and achievements since the previous Book published by Springer in 2018 after the 4th FSSIC Symposium. This book is unique within the related literature investigating advances in these fields because it addresses them in a complementary way and thereby enhances cross-fertilization between them, whereas other books treat these fields separately.

Satellite Gravimetry and the Solid Earth - Mathematical Foundations (Paperback): Mehdi Eshagh Satellite Gravimetry and the Solid Earth - Mathematical Foundations (Paperback)
Mehdi Eshagh
R3,221 Discovery Miles 32 210 Ships in 10 - 15 working days

Satellite Gravimetry and the Solid Earth: Mathematical Foundations presents the theories behind satellite gravimetry data and their connections to solid Earth. It covers the theory of satellite gravimetry and data analysis, presenting it in a way that is accessible across geophysical disciplines. Through a discussion of satellite measurements and the mathematical concepts behind them, the book shows how various satellite measurements, such as satellite orbit, acceleration, vector gravimetry, gravity gradiometry, and integral energy methods can contribute to an understanding of the gravity field and solid Earth geophysics. Bridging the gap between geodesy and geophysics, this book is a valuable resource for researchers and students studying gravity, gravimetry and a variety of geophysical and Earth Science fields.

Fundamentals of Fluid-Solid Interactions, Volume 8 - Analytical and Computational Approaches (Hardcover): Xiaodong (Sheldon)... Fundamentals of Fluid-Solid Interactions, Volume 8 - Analytical and Computational Approaches (Hardcover)
Xiaodong (Sheldon) Wang
R4,306 Discovery Miles 43 060 Ships in 18 - 22 working days

This book focuses on the computational and theoretical approaches to the coupling of fluid mechanics and solids mechanics. In particular, nonlinear dynamical systems are introduced to the handling of complex fluid-solid interaction systems, For the past few decades, many terminologies have been introduced to this field, namely, flow-induced vibration, aeroelasticity, hydroelasticity, fluid-structure interaction, fluid-solid interaction, and more recently multi-physics problems. Moreover, engineering applications are distributed within different disciplines, such as nuclear, civil, aerospace, ocean, chemical, electrical, and mechanical engineering. Regrettably, while each particular subject is by itself very extensive, it has been difficult for a single book to cover in a reasonable depth and in the mean time to connect various topics. In light of the current multidisciplinary research need in nanotechnology and bioengineering, there is an urgent need for books to provide such a linkage and to lay a foundation for more specialized fields.
- Interdisciplinary across all types of engineering
- Comprehensive study of fluid-solid interaction
- Discusses complex system dynamics derived from interactive systems
- Provides mathematic modeling of biological systems

Subsurface Fluid Flow and Imaging - With Applications for Hydrology, Reservoir Engineering, and Geophysics (Hardcover): Donald... Subsurface Fluid Flow and Imaging - With Applications for Hydrology, Reservoir Engineering, and Geophysics (Hardcover)
Donald Wyman Vasco, Akhil Datta-Gupta
R3,658 Discovery Miles 36 580 Ships in 10 - 15 working days

This book introduces methodologies for subsurface imaging based upon asymptotic and trajectory-based methods for modeling fluid flow, transport and deformation. It describes trajectory-based imaging from its mathematical formulation, through the construction and solution of the imaging equations, to the assessment of the accuracy and resolution associated with the image. Unique in its approach, it provides a unified framework for the complete spectrum of physical phenomena from wave-like hyperbolic problems to diffusive parabolic problems and non-linear problems of mixed character. The practical aspects of imaging, particularly efficient and robust methods for updating high resolution geologic models using fluid flow, transport and geophysical data, are emphasized throughout the book. Complete with online software applications and examples that enable readers to gain hands-on experience, this volume is an invaluable resource for graduate-level courses, as well as for academic researchers and industry practitioners in the fields of geoscience, hydrology, and petroleum and environmental engineering.

Classical Systems in Quantum Mechanics (Hardcover, 1st ed. 2020): Pavel Bona Classical Systems in Quantum Mechanics (Hardcover, 1st ed. 2020)
Pavel Bona
R2,669 Discovery Miles 26 690 Ships in 18 - 22 working days

This book investigates two possibilities for describing classical-mechanical physical systems along with their Hamiltonian dynamics in the framework of quantum mechanics.The first possibility consists in exploiting the geometrical properties of the set of quantum pure states of "microsystems" and of the Lie groups characterizing the specific classical system. The second approach is to consider quantal systems of a large number of interacting subsystems - i.e. macrosystems, so as to study the quantum mechanics of an infinite number of degrees of freedom and to look for the behaviour of their collective variables. The final chapter contains some solvable models of "quantum measurement" describing dynamical transitions from "microsystems" to "macrosystems".

ADIGMA - A European Initiative on the Development of Adaptive Higher-Order Variational Methods for Aerospace Applications -... ADIGMA - A European Initiative on the Development of Adaptive Higher-Order Variational Methods for Aerospace Applications - Results of a Collaborative Research Project Funded by the European Union, 2006-2009 (Hardcover, Edition.)
Norbert Kroll, Heribert Bieler, Herman de Coninck, Vincent Couaillier, Harmen Van Der Ven, …
R7,737 Discovery Miles 77 370 Ships in 18 - 22 working days

This volume contains results gained from the EU-funded 6th Framework project ADIGMA (Adaptive Higher-order Variational Methods for Aerodynamic Applications in Industry). The goal of ADIGMA was the development and utilization of innovative adaptive higher-order methods for the compressible flow equations enabling reliable, mesh independent numerical solutions for large-scale aerodynamic applications in aircraft industry. The ADIGMA consortium was comprised of 22 organizations which included the main European aircraft manufacturers, the major European research establishments and several universities, all with well proven expertise in Computational Fluid Dynamics (CFD). The book presents an introduction to the project, exhibits partners methods and approaches and provides a critical assessment of the newly developed methods for industrial aerodynamic applications. The best numerical strategies for integration as major building blocks for the next generation of industrial flow solvers are identified. "

Attractors and Methods (Hardcover): Boling Guo, Liming Ling, Yansheng Ma, Hui Yang Attractors and Methods (Hardcover)
Boling Guo, Liming Ling, Yansheng Ma, Hui Yang
R4,355 Discovery Miles 43 550 Ships in 10 - 15 working days

This two-volume work presents state-of-the-art mathematical theories and results on infinite-dimensional dynamical systems. Inertial manifolds, approximate inertial manifolds, discrete attractors and the dynamics of small dissipation are discussed in detail. The unique combination of mathematical rigor and physical background makes this work an essential reference for researchers and graduate students in applied mathematics and physics. The main emphasis in the fi rst volume is on the existence and properties for attractors and inertial manifolds. This volume highlights the use of modern analytical tools and methods such as the geometric measure method, center manifold theory in infinite dimensions, the Melnihov method, spectral analysis and so on for infinite-dimensional dynamical systems. The second volume includes the properties of global attractors, the calculation of discrete attractors, structures of small dissipative dynamical systems, and the existence and stability of solitary waves. Contents Discrete attractor and approximate calculation Some properties of global attractor Structures of small dissipative dynamical systems Existence and stability of solitary waves

Timeless Quantum Mechanics and the Early Universe (Hardcover, 1st ed. 2022): Leonardo Chataignier Timeless Quantum Mechanics and the Early Universe (Hardcover, 1st ed. 2022)
Leonardo Chataignier
R4,258 Discovery Miles 42 580 Ships in 18 - 22 working days

The book is based on the author's PhD thesis, which deals with the concept of time in quantum gravity and its relevance for the physics of the early Universe. It presents a consistent and complete new relational formulation of quantum gravity (more specifically, of quantum mechanics models with diffeomorphism invariance), which is applied to potentially observable cosmological effects. The work provides answers to the following questions: How can the dynamics of quantum states of matter and geometry be defined in a diffeomorphism-invariant way? What is the relevant space of physical states and which operators act on it? How are the quantum states related to probabilities in the absence of a preferred time? The answers can provide a further part of the route to constructing a fundamental theory of quantum gravity. The book is well-suited to graduate students as well as professional researchers in the fields of general relativity and gravitation, cosmology, and quantum foundations.

From QCD Flux Tubes to Gravitational S-matrix and Back (Hardcover, 1st ed. 2017): Victor Gorbenko From QCD Flux Tubes to Gravitational S-matrix and Back (Hardcover, 1st ed. 2017)
Victor Gorbenko
R3,204 Discovery Miles 32 040 Ships in 18 - 22 working days

This thesis studies various aspects of non-critical strings both as an example of a non-trivial and solvable model of quantum gravity and as a consistent approximation to the confining flux tube in quantum chromodynamics (QCD). It proposes and develops a new technique for calculating the finite volume spectrum of confining flux tubes. This technique is based on approximate integrability and it played a game-changing role in the study of confining strings. Previously, a theoretical interpretation of available high quality lattice data was impossible, because the conventional perturbative expansion for calculating the string spectra was badly asymptotically diverging in the regime accessible on the lattice. With the new approach, energy levels can be calculated for much shorter flux tubes than was previously possible, allowing for a quantitative comparison with existing lattice data. The improved theoretical control makes it manifest that existing lattice data provides strong evidence for a new pseudoscalar particle localized on the QCD fluxtube - the worldsheet axion. The new technique paves a novel and promising path towards understanding the dynamics of quark confinement.

Theoretical Microfluidics (Hardcover, Wyd): Henrik Bruus Theoretical Microfluidics (Hardcover, Wyd)
Henrik Bruus
R4,257 Discovery Miles 42 570 Ships in 10 - 15 working days

Microfluidics is a young and rapidly expanding scientific discipline, which deals with fluids and solutions in miniaturized systems, the so-called lab-on-a-chip systems. It has applications in chemical engineering, pharmaceutics, biotechnology and medicine. As the lab-on-a-chip systems grow in complexity, a proper theoretical understanding becomes increasingly important.
The basic idea of the book is to provide a self-contained formulation of the theoretical framework of microfluidics, and at the same time give physical motivation and example from lab-on-a-chip technology. After three chapters introducing microfluidics, the governing questions for mass, momentum and energy, and some basic flow solutions, the following 14 chapters treat hydraulic resistance/compliance, diffusion/dispersion, time-dependent flow, capillarity, electro-and magneto-hydydrodynamics, thermal transport, two-phase flow, complex flow patterns and acousto-fluidics, as well as the new fields of opto-and nano-fluidics. Throughout the book simple models with analytical solutions are presented to provide the student with a thorough physical understanding of order of magnitudes and various selected micorfluidic phenomena and devices.
The book grew out of a set of well-tested lecture notes. It is with its many pedagogical exercises designed as a textbook for an advanced undergraduate or first-year graduate course. IT is also well suited for self-study.

Process Chemistry of Lubricant Base Stocks (Paperback): Thomas R Lynch Process Chemistry of Lubricant Base Stocks (Paperback)
Thomas R Lynch
R1,544 Discovery Miles 15 440 Ships in 9 - 17 working days

Advances in processing methods are not only improving the quality and yield of lubricant base stocks, they are also reducing the dependence on more expensive crude oil starting materials. Process Chemistry of Lubricant Base Stocks provides a comprehensive understanding of the chemistry behind the processes involved in petroleum base stock production from crude oil fractions. This book examines hydroprocessing technologies that, driven by the demand for higher performance in finished lubricants, have transformed processing treatments throughout the industry. The author relates the properties of base stocks to their chemical composition and describes the process steps used in their manufacture. The book highlights catalytic processes, including hydrocracking, hydrofinishing, and catalytic dewaxing. It also covers traditional solvent-based separation methods used to remove impurities, enhance performance, and improve oxidation resistance. The final chapters discuss the production of Food Grade white oils and paraffins and the gas-to-liquids processes used to produce highly paraffinic base stocks via Fischer-Tropsch chemistry. Process Chemistry of Lubricant Base Stocks provides historical and conceptual background to the technologies used to make base stocks, thorough references, and a unique emphasis on chemical, not just engineering, aspects of lubricant processing-making this book an ideal and practical reference for scientists across a wide range of disciplines.

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