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Books > Science & Mathematics > Physics > General
This work is a needed reference for widely used techniques and
methods of computer simulation in physics and other disciplines,
such as materials science. Molecular dynamics computes a molecule's
reactions and dynamics based on physical models; Monte Carlo uses
random numbers to image a system's behaviour when there are
different possible outcomes with related probabilities. The work
conveys both the theoretical foundations as well as applications
and "tricks of the trade", that often are scattered across various
papers. Thus it will meet a need and fill a gap for every scientist
who needs computer simulations for his/her task at hand. In
addition to being a reference, case studies and exercises for use
as course reading are included.
This monograph introduces the basic concepts of the theory of
causal fermion systems, a recent approach to the description of
fundamental physics. The theory yields quantum mechanics, general
relativity and quantum field theory as limiting cases and is
therefore a candidate for a unified physical theory. From the
mathematical perspective, causal fermion systems provide a general
framework for describing and analyzing non-smooth geometries and
"quantum geometries". The dynamics is described by a novel
variational principle, called the causal action principle. In
addition to the basics, the book provides all the necessary
mathematical background and explains how the causal action
principle gives rise to the interactions of the standard model plus
gravity on the level of second-quantized fermionic fields coupled
to classical bosonic fields. The focus is on getting a
mathematically sound connection between causal fermion systems and
physical systems in Minkowski space. The book is intended for
graduate students entering the field, and is furthermore a valuable
reference work for researchers in quantum field theory and quantum
gravity.
The operation of everything in the universe needs a special
"material"-energy. The earth is no exception. There are many kinds
of energy sources on earth. But where does the earth's energy come
from? The answer is that everything grows under the sun. Developing
renewable energy is of strategic importance to achieve sustainable
energy supply. Simulating natural photosynthesis is the ultimate
goal of effi cient solar energy conversion. Photovoltaic technology
has been widely used in industry and will be one of the major
energy sources in the future. Developing new materials and
structures, the photoelectric conversion effi ciency of solar cells
will be improved day by day, and solar cells will attract more and
more attention. This book presents principles of solar photovoltaic
conversion, and introduces the physical and chemical processes
involved. Mechanisms which affect solar cell performance are also
discussed.
How did the universe begin and how will it end? What is matter? What is mind, and can it survive death? What are time and space, and how do they relate to ideas about God? Is the order of the universe the result of accident or design? The most profound and age-old questions of existence -- for centuries the focus of religion and philosophy -- may soon be answered through the extraordinary advances of a field of science known as the new physics. In this illuminating work, Paul Davies, author of the acclaimed Other Worlds and The Edge of Infinity, writes that the discoveries of 20th-century physics -- relativity and the quantum theory -- are now pointing the way to a new appreciation of man and his place in the universe. They could, in fact, bring within our grasp a unified description of all creation. Demanding a radical reformulation of the most fundamental aspects of reality and a way of thinking that is in closer accord with mysticism than materialism, the new physics, says Davies, offers a surer path to God than religion. Described by The Washington Post as "impressive," God and the New Physics is a fascinating look at the impact of science on what were formerly religious issues. Elegantly written, a book for both scholars and lay readers of science, it is, according to the Christian Science Monitor, a "provocative...rewarding intellectual romp."
"Networks of Echoes: Imitation, Innovation and Invisible Leaders"
is a mathematically rigorous and data rich book on a fascinating
area of the science and engineering of social webs. There are
hundreds of complex network phenomena whose statistical properties
are described by inverse power laws. The phenomena of interest are
not arcane events that we encounter only fleetingly, but are events
that dominate our lives. We examine how this intermittent
statistical behavior intertwines itself with what appears to be the
organized activity of social groups. The book is structured as
answers to a sequence of questions such as: How are decisions
reached in elections and boardrooms? How is the stability of a
society undermined by zealots and committed minorities and how is
that stability re-established? Can we learn to answer such
questions about human behavior by studying the way flocks of birds
retain their formation when eluding a predator? These questions and
others are answered using a generic model of a complex dynamic
network one whose global behavior is determined by a symmetric
interaction among individuals based on social imitation. The
complexity of the network is manifest in time series resulting from
self-organized critical dynamics that have divergent first and
second moments, are non-stationary, non-ergodic and non-Poisson.
How phase transitions in the network dynamics influence such
activity as decision making is a fascinating story and provides a
context for introducing many of the mathematical ideas necessary
for understanding complex networks in general. The decision making
model (DMM) is selected to emphasize that there are features of
complex webs that supersede specific mechanisms and need to be
understood from a general perspective. This insightful overview of
recent tools and their uses may serve as an introduction and
curriculum guide in related courses."
This book contains the results in numerical analysis and
optimization presented at the ECCOMAS thematic conference
"Computational Analysis and Optimization" (CAO 2011) held in
Jyvaskyla, Finland, June 9-11, 2011. Both the conference and this
volume are dedicated to Professor Pekka Neittaanmaki on the
occasion of his sixtieth birthday. It consists of five parts that
are closely related to his scientific activities and interests:
Numerical Methods for Nonlinear Problems; Reliable Methods for
Computer Simulation; Analysis of Noised and Uncertain Data;
Optimization Methods; Mathematical Models Generated by Modern
Technological Problems. The book also includes a short biography of
Professor Neittaanmaki.
The importance of accuracy verification methods was understood
at the very beginning of the development of numerical analysis.
Recent decades have seen a rapid growth of results related to
adaptive numerical methods and a posteriori estimates. However, in
this important area there often exists a noticeable gap between
mathematicians creating the theory and researchers developing
applied algorithms that could be used in engineering and scientific
computations for guaranteed and efficient error control.
The goals of the book are to (1) give a transparent explanation
of the underlying mathematical theory in a style accessible not
only to advanced numerical analysts but also to engineers and
students; (2) present detailed step-by-step algorithms that follow
from a theory; (3) discuss their advantages and drawbacks, areas of
applicability, give recommendations and examples.
"
This book offers a comprehensive treatment of nonlocal elasticity
theory as applied to the prediction of the mechanical
characteristics of various types of biological and non-biological
nanoscopic structures with different morphologies and functional
behaviour. It combines fundamental notions and advanced concepts,
covering both the theory of nonlocal elasticity and the mechanics
of nanoscopic structures and systems. By reporting on recent
findings and discussing future challenges, the book seeks to foster
the application of nonlocal elasticity based approaches to the
emerging fields of nanoscience and nanotechnology. It is a
self-contained guide, and covers all relevant background
information, the requisite mathematical and computational
techniques, theoretical assumptions, physical methods and possible
limitations of the nonlocal approach, including some practical
applications. Mainly written for researchers in the fields of
physics, biophysics, mechanics, and nanoscience, as well as
computational engineers, the book can also be used as a reference
guide for senior undergraduate and graduate students, as well as
practicing engineers working in a range of areas, such as
computational condensed matter physics, computational materials
science, computational nanoscience and nanotechnology, and
nanomechanics.
This book offers a timely report on methods for risk assessment
procedures for dams, with a special emphasis on dams with small
storage dimensions. It starts by introducing all important
definitions relating to dams, dam safety, such as the most common
failure modes, and risks. In turn, it describes in detail the most
important evaluation procedures for various failure modes such as
piping, flood, earthquake and stability are described in this
chapter. Consequence assessment procedures, together with the
different steps of the risk evaluation process, are analyzed,
providing a guide on how to identify the appropriate failure mode
for the examined dam and setting up the appropriate safety plan.
The book introduces the most common methods for predicting peak
breach discharge, analyzing some relevant case studies. Upon
comparing the findings obtained with the different methods, the
book concludes with some general suggestions and ideas for future
developments. This book fills an important gap between theoretical
works and real-life problems being investigating in practical
research studies on dam safety and risk management. It provides
readers with the necessary knowledge on risk analysis and shows how
to apply this in practice to carry out dam safety studies. It
offers practical guidelines to set up risk assessment procedures
for different failure modes and predicting failure parameters such
as failure time, peak breach discharge and breach width.
Translated from the original French and annotated with figures,
historical maps and commentary from the translators, this work is
Jean-Charles Houzeau's account of his escape from Texas during the
American Civil War. Houzeau was a Belgian astronomer who worked a
couple of years as assistant astronomer at the Brussels
Observatory, but eventually moved to the United States. He was
living as a frontierman in Texas when the Civil War broke out, and
because he took an abolitionist stance and helped slaves escape, he
was forced to flee to Mexico, from where he sailed to New Orleans
on board of a US military vessel. Originally titled La terreur
blanche au Texas et mon 'evasion, Houzeau captured the details of
his escape in 1862.The editors, an astronomer and a French language
teacher, have added supplementary material to give the readers more
depth and historical context to the story.
This volume gathers contributions reflecting topics presented
during an INDAM workshop held in Rome in May 2016. The event
brought together many prominent researchers in both Mathematical
Analysis and Numerical Computing, the goal being to promote
interdisciplinary collaborations. Accordingly, the following
thematic areas were developed: 1. Lagrangian discretizations and
wavefront tracking for synchronization models; 2. Astrophysics
computations and post-Newtonian approximations; 3. Hyperbolic
balance laws and corrugated isometric embeddings; 4. "Caseology"
techniques for kinetic equations; 5. Tentative computations of
compressible non-standard solutions; 6. Entropy dissipation,
convergence rates and inverse design issues. Most of the articles
are presented in a self-contained manner; some highlight new
achievements, while others offer snapshots of the "state of the
art" in certain fields. The book offers a unique resource, both for
young researchers looking to quickly enter a given area of
application, and for more experienced ones seeking comprehensive
overviews and extensive bibliographic references.
Physicists are very smart people. Still, when it comes to moving
their ideas from university to market, they often lack the basic
set of know-hows that could help them succeed in the technology
transfer process. To fill this gap, Entrepreneurship for
Physicists: A Practical Guide to Move Ideas from University to
Market offers a concise analysis of the key ingredients that enable
entrepreneurs to bring added value to their customers. After a
short discussion on why university physicists should pay more
attention to this aspect of their professional life, the book dives
into a set of theories, models, and tools that could help an
academic scientist transform an idea into customer added value. The
reader will be introduced to effectuation theory, internal resource
analysis, external landscape analysis, value capture, lean startup
method, business canvases, financial projections, and to a series
of topics that, albeit often neglected, do play a fundamental role
in technology transfer, such as trust, communication, and
persuasion. In the last chapter, the book explains howmost of the
concepts discussed actually find application in the career of
scientists in a much broader sense.
Science used to be experiments and theory, now it is experiments,
theory and computations. The computational approach to
understanding nature and technology is currently flowering in many
fields such as physics, geophysics, astrophysics, chemistry,
biology, and most engineering disciplines. This book is a gentle
introduction to such computational methods where the techniques are
explained through examples. It is our goal to teach principles and
ideas that carry over from field to field. You will learn basic
methods and how to implement them. In order to gain the most from
this text, you will need prior knowledge of calculus, basic linear
algebra and elementary programming.
This set of three volumes aims to describe the recent progress in
nonlinear differential equations and nonlinear dynamical systems
(both continuous and discrete). Written by experts, each chapter is
self-contained and aims to clearly illustrate some of the
mathematical theories of nonlinear systems. These volumes should be
suitable for graduate and postgraduate students in mathematics, the
natural sciences, and engineering sciences, as well as for
researchers (both pure and applied) interested in nonlinear
systems. The common theme throughout all the volumes is on solvable
and integrable nonlinear systems of equations and methods/theories
that can be applied to analyze those systems. Some applications are
also discussed. Features Clearly illustrates the mathematical
theories of nonlinear systems and their progress to both the
non-expert and active researchers in this area. Suitable for
graduate students in mathematics, applied mathematics and some of
the engineering sciences. Written in a careful pedagogical manner
by those experts who have been involved in the research themselves,
with each contribution being reasonably self-contained.
In the field of organic semiconductors researchers and
manufacturers are faced with a wide range of potential molecules.
This work presents concepts for simulation-based predictions of
material characteristics starting from chemical stuctures. The
focus lies on charge transport - be it in microscopic models of
amorphous morphologies, lattice models or large-scale device
models. An extensive introductory review, which also includes
experimental techniques, makes this work interesting for a broad
readership. Contents: Organic Semiconductor Devices Experimental
Techniques Charge Dynamics at Dierent Scales Computational Methods
Energetics and Dispersive Transport Correlated Energetic Landscapes
Microscopic, Stochastic and Device Simulations Parametrization of
Lattice Models Drift-Diusion with Microscopic Link
Network Science is the emerging field concerned with the study of
large, realistic networks. This interdisciplinary endeavor,
focusing on the patterns of interactions that arise between
individual components of natural and engineered systems, has been
applied to data sets from activities as diverse as high-throughput
biological experiments, online trading information, smart-meter
utility supplies, and pervasive telecommunications and surveillance
technologies. This unique text/reference provides a fascinating
insight into the state of the art in network science, highlighting
the commonality across very different areas of application and the
ways in which each area can be advanced by injecting ideas and
techniques from another. The book includes contributions from an
international selection of experts, providing viewpoints from a
broad range of disciplines. It emphasizes networks that arise in
nature-such as food webs, protein interactions, gene expression,
and neural connections-and in technology-such as finance, airline
transport, urban development and global trade. Topics and Features:
begins with a clear overview chapter to introduce this
interdisciplinary field; discusses the classic network science of
fixed connectivity structures, including empirical studies,
mathematical models and computational algorithms; examines
time-dependent processes that take place over networks, covering
topics such as synchronisation, and message passing algorithms;
investigates time-evolving networks, such as the World Wide Web and
shifts in topological properties (connectivity, spectrum,
percolation); explores applications of complex networks in the
physical and engineering sciences, looking ahead to new
developments in the field. Researchers and professionals from
disciplines as varied as computer science, mathematics,
engineering, physics, chemistry, biology, ecology, neuroscience,
epidemiology, and the social sciences will all benefit from this
topical and broad overview of current activities and grand
challenges in the unfolding field of network science.
This monograph tackles three challenges. First, show a
mathematics-based meta-model that matches known elementary
particles. Second, apply models, based on the meta-model, to match
other known physics data. Third, predict future physics data. The
math features solutions to isotropic pairs of isotropic quantum
harmonic oscillators. This monograph matches some solutions to
known elementary particles. Matched properties include spin, types
of interactions in which the particles partake, and (for elementary
bosons) approximate masses. Other solutions point to possible
elementary particles. This monograph applies the models and the
extended particle list. Results narrow gaps between physics data
and theory. Results pertain to elementary particles, astrophysics,
and cosmology. For example, this monograph predicts properties for
beyond-the-Standard-Model elementary particles, proposes
descriptions of dark matter and dark energy, provides new
relationships between known physics constants (including masses of
some elementary particles), includes theory that dovetails with the
ratio of dark matter to ordinary matter, includes math that
dovetails with the number of elementary-fermion generations,
suggests forces that govern the rate of expansion of the universe,
and suggests additions to and details for the cosmology timeline.
This is the first book presenting dynamic responses and failure of
polymer composite structures as they interact with internal and/or
external fluid media. It summarizes authoritative research carried
out by the author in the past decade on various aspects of
Fluid-Structure Interaction (FSI) to present important effects of
FSI on composite structures. The topics include impact loading on
composite structures with air-back, water-back, or containing
water; FSI effects on frequencies, mode shapes, and modal
curvatures; cyclic loading for fatigue failure with FSI; coupling
of independent composite structures by fluid media; and moving
composite structures in water. Numerical techniques for FSI are
also presented. Research was conducted both experimentally and
numerically to complement each other. The book offers a timely,
comprehensive information to fluid-structure interaction of
composite structures for students, researchers or practicing
engineers.
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