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Books > Science & Mathematics > Physics
This book is devoted to the theoretical and experimental
investigation of the optoelectronic oscillator (OEO) with direct
and external modulation of laser emission. Such devices, sources of
precision radio frequency oscillations using laser excitation, are
novel and technologically relevant, with manifold possible
applications. The book includes a review of the present state of
the theory and generation techniques in microwave and mm-wave
ranges for traditional and optoelectronic oscillators, description
of OEO construction and operation principles, theoretical
oscillation analysis and mathematical description of the relevant
semi-classical laser physics, and investigation of the power
spectral density of noises. Technical features and advantages of
OEOs with external and direct modulation of laser emission are
discussed together with functional diagrams. The characteristics of
OEOs are compared with other traditional RF oscillators, such as
quartz, surface acoustic waves, and oscillators with
electromagnetic wave cavities. Special attention is paid to
Q-factors and phase noises of RF carriers at small offsets. The
authors discuss the technical characteristics of modern
optoelectronic methods for precision RF oscillation formation, such
as commercial large-dimension and compact quantum frequency
standards with optical pumping on cesium and rubidium cells. This
book is aimed at scientists and engineers in academia and industry
who work with sources of microwave and mm-wave signals.
This book presents a multidisciplinary guide to gauge theory and
gravity, with chapters by the world's leading theoretical
physicists, mathematicians, historians and philosophers of science.
The contributions from theoretical physics explore e.g. the
consistency of the unification of gravitation and quantum theory,
the underpinnings of experimental tests of gauge theory and its
role in shedding light on the relationship between mathematics and
physics. In turn, historians and philosophers of science assess the
impact of Weyl's view on the philosophy of science. Graduate
students, lecturers and researchers in the fields of history of
science, theoretical physics and philosophy of science will benefit
from this book by learning about the role played by Weyl's
Raum-Zeit-Materie in shaping several modern research fields, and by
gaining insights into the future prospects of gauge theory in both
theoretical and experimental physics. Furthermore, the book
facilitates interdisciplinary exchange and conceptual innovation in
tackling fundamental questions about our deepest theories of
physics. Chapter "Weyl's Raum-Zeit-Materie and the Philosophy of
Science" is available open access under a Creative Commons
Attribution 4.0 International License via link.springer.com
This book gives a complete spectral analysis of the
non-self-adjoint Schroedinger operator with a periodic
complex-valued potential. Building from the investigation of the
spectrum and spectral singularities and construction of the
spectral expansion for the non-self-adjoint Schroedinger operator,
the book features a complete spectral analysis of the
Mathieu-Schroedinger operator and the Schroedinger operator with a
parity-time (PT)-symmetric periodic optical potential. There
currently exists no general spectral theorem for non-self-adjoint
operators; the approaches in this book thus open up new
possibilities for spectral analysis of some of the most important
operators used in non-Hermitian quantum mechanics and optics.
Featuring detailed proofs and a comprehensive treatment of the
subject matter, the book is ideally suited for graduate students at
the intersection of physics and mathematics.
This book looks at advanced nanocomposites, introducing
long-awaited concepts towards bridging the gap between
nanostructured optical materials and next-generation imaging
systems. It investigates nanocomposites as bulk optical materials
and highlights the immense potential they hold for real-world
optical elements and systems, such as smartphone cameras. It covers
the full spectrum of nanocomposite optical materials from their
fundamental properties to analytical modeling and detailed
application examples. This book also provides an in-depth
discussion of the role these new materials play in the development
of broadband flat optics - diffractive optical elements used for
enhancing high-end broadband imaging systems. Written by an
industry expert, this book seamlessly connects fundamental research
and real-world applications. It is the ideal guide both for optical
engineers working towards integrating new technologies, and
researchers involved with fundamental research on optical
materials.
This book presents a state-of-the-art overview of the major aspects
involved in the science, technology and applications of ceramics,
glasses and glass-ceramics. After providing an historical
perspective of the development and use of ceramics and glasses
along the Silk Road, the theoretical background and fabrication
techniques of such materials are described and discussed. A special
focus is dedicated to emerging high-tech applications in various
fields, including medicine, energy, optics and photonics, sensors,
sustainability and circular economy. The chapters are written by
leading experts in their respective fields and highlight the
contemporary challenges associated to each topic. This book will
serve as a valuable reference for both early-stage and skilled
researchers as well as industry professionals interested in the
broad field of glasses and ceramics.
This unique compendium deals with modeling magnetic media
exhibiting hysteresis using computationally efficient
phenomenological models that may be utilized in a wide spectrum of
both coupled and non-coupled situations. The main factors affecting
the behavior of media exhibiting hysteresis - such as magnetic
field, mechanical stress and temperature - are dealt with from a
higher-level perspective.The volume offers a brief review of
well-established definitions of the hysteresis phenomena and widely
utilized models. It then presents in its separate chapters a set of
innovative efficient multi-component hysteresis models, some of
which involves novel operators and/or neural network activation
functions as primitive building blocks. Identification
methodologies, simulations and experimental verifications for the
presented models are also prominently highlighted.This useful
reference text offers a great resource material for academics,
professionals, researchers and graduate students in electrical and
electronic engineering, superconductivity, magnetic materials and
mechanical engineering.
"Advances in Imaging and Electron Physics "merges two
long-running serials--"Advances in Electronics and Electron
Physics" and "Advances in Optical and Electron Microscopy."
This series features extended articles on the physics of
electron devices (especially semiconductor devices), particle
optics at high and low energies, microlithography, image science
and digital image processing, electromagnetic wave propagation,
electron microscopy, and the computing methods used in all these
domains.
* Contributions from leading international scholars and industry
experts
* Discusses hot topic areas and presents current and future
research trends
* Invaluable reference and guide for physicists, engineers and
mathematicians
Isaiah 42:5 Th us saith God the Lord, he that created
the heavens, and stretched them out; he that spread
forth the earth, and that which cometh out of it; he
that giveth breath unto the people upon it, and spirit to
them that walk therein: 6 I the Lord have called thee in
righteousness, and will hold thine hand and will keep
thee, and give thee for a covenant of the people, for a
light of the Gentiles; 7 To open the blind eyes, to bring
out the prisoners from the prison, and them that sit in
darkness out of the prison house. 8 I am the Lord: that is
my name: and my glory will I not give to another, neither
my praise to graven images. 9 Behold, the former things
are come to pass, and new things do I declare: before
they spring forth I tell you of them. As the trials of this
generation intensify, the Lord God will begin to do new
things to get Himself glory. Those who trust Him with
their lives will be prepared.
One current-day man, with a spirit like Moses, is to
publish what new things, and who, is to spring forth.
Deuteronomy 18:18 I will raise them up a prophet from
among their brethren, like unto thee (Moses), and will
put my words in his mouth; and he shall speak unto them
all that I shall command him. 19 And it shall come to
pass, that whosoever will not hearken unto my words
which he shall speak in my name I will require it of him.
The Lord God's word to all of creation from this
contemporary Moses is come: The Book Of Stone. Those
whom the Lord will call, may draw a kingly sword from
this stone.
With this spiritual sward,
And faith in the Lord,
Saints will overcome,
To the glory of the Kingdom
This book's importunate message is for those in the land of the
living. The judgment for the land in the west is set.
Amidst mounting fear, The Book Of Stone is God's light, from a man
with a spirit like Moses. Spiritually, YHWH will
remove the iniquity of those who seek Him. Physically, the world
will witness Moses, Elijah, and the servant BRANCH,
delivering believers to safety.
The secondary message is that a Redeemer will come in a way in
which none have considered. God Himself inspired the
compilation of the selected scriptures herein to announce that one
like unto the Son of Man will glorify God the Father
once again. And we shall go rejoining...
Many student private pilots don't realize at the start of their
course that many hours of study are required on top of the in-class
schedule. This book will help those trainee pilots without science
backgrounds, or those that need a refresher, to brush up on the
necessary theory. It covers subjects that will be encountered many
times during the PPL course, such as principles of flight, aircraft
general knowledge, flight performance and planning, meteorology,
navigation and human factors. The content is organized around two
main groups of information, namely core knowledge, concentrating
more on the concepts; and a practical toolbox, dedicated to some
techniques that will be required during the course.
This book is centered on a surprising Tevatron and LHC experimental
result, the accurate equality of gauge boson and top quark energy
Ew + Ez = Et. The ramifications of this unanticipated result extend
down to the lower energies, and lead to two new elementary particle
paradigms. The first is the use of energies E rather than masses m
for analysing particle excitation patterns, where E =mc2. The
second is the recognition that ground-state particle energies are
generated in the form of quantized energy packets that are produced
in ' -boost' energy excitations, where -1 ~137 is the fine
structure constant. Repeated -boosts form a 'reservoir' of energy
packets, which merge and reproduce the quantized energies of the
various particle and quark ground-state configurations. An
-generated energy excitation path extends upward from the electron
to the top quark t. The steps in this path, which contain two
-boosts, combine coherently to give the energy equation Eelectron x
18/ 2 = Et, which is accurate to 0.3%. A branching energy path
reproduces the energy of the bottom quark b to 0.1%.Particle
energies and lifetimes are conjugate quantities, and the -quantized
particle energies are reflected in -quantized particle mean
lifetimes, as revealed by lifetime plots on a logarithmic -spaced
grid. The accurate factor-of-137 spacings between the classical
electron radius, Compton radius, and Bohr orbit radius suggest
introducing both a radial and a mass dependence into , which leads
to an equation for the transformation of Coulomb energy into
electron non-electromagnetic mass. The electron spin and magnetic
moment are reproduced by a Compton-sized relativistically spinning
sphere (RSS). The anomalous electron magnetic moment is also
accounted for by the RSS, in response to Richard Feynman's 1961
Challenge to provide such an explanation. The mathematics used here
is straightforward, and the calculations are guided by fits to the
elementary particle RPP energy and lifetime data bases, which are
provided here in Appendices A and B.
Boltzmann and Vlasov equations played a great role in the past and
still play an important role in modern natural sciences, technique
and even philosophy of science. Classical Boltzmann equation
derived in 1872 became a cornerstone for the molecular-kinetic
theory, the second law of thermodynamics (increasing entropy) and
derivation of the basic hydrodynamic equations. After
modifications, the fields and numbers of its applications have
increased to include diluted gas, radiation, neutral particles
transportation, atmosphere optics and nuclear reactor modelling.
Vlasov equation was obtained in 1938 and serves as a basis of
plasma physics and describes large-scale processes and galaxies in
astronomy, star wind theory. This book provides a comprehensive
review of both equations and presents both classical and modern
applications. In addition, it discusses several open problems of
great importance.
This book highlights a comprehensive introduction to the
fundamental statistical mechanics underneath the inner workings of
neural networks. The book discusses in details important concepts
and techniques including the cavity method, the mean-field theory,
replica techniques, the Nishimori condition, variational methods,
the dynamical mean-field theory, unsupervised learning, associative
memory models, perceptron models, the chaos theory of recurrent
neural networks, and eigen-spectrums of neural networks, walking
new learners through the theories and must-have skillsets to
understand and use neural networks. The book focuses on
quantitative frameworks of neural network models where the
underlying mechanisms can be precisely isolated by physics of
mathematical beauty and theoretical predictions. It is a good
reference for students, researchers, and practitioners in the area
of neural networks.
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