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Books > Science & Mathematics > Physics > Applied physics & special topics > General
In 2010, the ALPHA collaboration achieved a first for mankind: the
stable, long-term storage of atomic antimatter, a project carried
out a the Antiproton Decelerator facility at CERN. A crucial
element of this observation was a dedicated silicon vertexing
detector used to identify and analyze antihydrogen annihilations.
This thesis reports the methods used to reconstruct the
annihilation location. Specifically, the methods used to identify
and extrapolate charged particle tracks and estimate the
originating annihilation location are outlined. Finally, the
experimental results demonstrating the first-ever magnetic
confinement of antihydrogen atoms are presented. These results rely
heavily on the silicon detector, and as such, the role of the
annihilation vertex reconstruction is emphasized.
Laser assisted fabrication involves shaping of materials using
laser as a source of heat. It can be achieved by removal of
materials (laser assisted cutting, drilling, etc.), deformation
(bending, extrusion), joining (welding, soldering) and addition of
materials (surface cladding or direct laser cladding). This book on
Laser assisted Fabrication' is aimed at developing in-depth
engineering concepts on various laser assisted macro and
micro-fabrication techniques with the focus on application and a
review of the engineering background of different
micro/macro-fabrication techniques, thermal history of the treated
zone and microstructural development and evolution of properties of
the treated zone.
Aerodynamic Noise extensively covers the theoretical basis and
mathematical modeling of sound, especially the undesirable sounds
produced by aircraft. This noise could come from an aircraft's
engine-propellers, fans, combustion chamber, jets-or the vehicle
itself-external surfaces-or from sonic booms. The majority of the
sound produced is due to the motion of air and its interaction with
solid boundaries, and this is the main discussion of the book. With
problem sets at the end of each chapter, Aerodynamic Noise is ideal
for graduate students of mechanical and aerospace engineering. It
may also be useful for designers of cars, trains, and wind
turbines.
This book presents high-performance data transmission over plastic
optical fibers (POF) using integrated optical receivers having good
properties with multilevel modulation, i.e. a higher sensitivity
and higher data rate transmission over a longer plastic optical
fiber length. Integrated optical receivers and transmitters with
high linearity are introduced for multilevel communication. For
binary high-data rate transmission over plastic optical fibers, an
innovative receiver containing an equalizer is described leading
also to a high performance of a plastic optical fiber link. The
cheap standard PMMA SI-POF (step-index plastic optical fiber) has
the lowest bandwidth and the highest attenuation among multimode
fibers. This small bandwidth limits the maximum data rate which can
be transmitted through plastic optical fibers. To overcome the
problem of the plastic optical fibers high transmission loss, very
sensitive receivers must be used to increase the transmitted length
over POF. The plastic optical fiber limited bandwidth problem can
be decreased by using multilevel signaling like multilevel pulse
amplitude modulation or by using an equalizer for binary data
transmission.
Path following in combination with boundary value problem solvers
has emerged as a continuing and strong influence in the development
of dynamical systems theory and its application. It is widely
acknowledged that the software package AUTO - developed by Eusebius
J. Doedel about thirty years ago and further expanded and developed
ever since - plays a central role in the brief history of numerical
continuation. This book has been compiled on the occasion of Sebius
Doedel's 60th birthday. Bringing together for the first time a
large amount of material in a single, accessible source, it is
hoped that the book will become the natural entry point for
researchers in diverse disciplines who wish to learn what numerical
continuation techniques can achieve. The book opens with a foreword
by Herbert B. Keller and lecture notes by Sebius Doedel himself
that introduce the basic concepts of numerical bifurcation
analysis. The other chapters by leading experts discuss
continuation for various types of systems and objects and showcase
examples of how numerical bifurcation analysis can be used in
concrete applications. Topics that are treated include: interactive
continuation tools, higher-dimensional continuation, the
computation of invariant manifolds, and continuation techniques for
slow-fast systems, for symmetric Hamiltonian systems, for spatially
extended systems and for systems with delay. Three chapters review
physical applications: the dynamics of a SQUID, global bifurcations
in laser systems, and dynamics and bifurcations in electronic
circuits.
The International Conference on the Theory of Machines and
Mechanisms is organized every four years, under the auspices of the
International Federation for the Promotion of Mechanism and Machine
Science (IFToMM) and the Czech Society for Mechanics. This eleventh
edition of the conference took place at the Technical University of
Liberec, Czech Republic, 4-6 September 2012. This volume offers an
international selection of the most important new results and
developments, in 73 papers, grouped in seven different parts,
representing a well-balanced overview, and spanning the general
theory of machines and mechanisms, through analysis and synthesis
of planar and spatial mechanisms, dynamics of machines and
mechanisms, linkages and cams, computational mechanics, rotor
dynamics, biomechanics, mechatronics, vibration and noise in
machines, optimization of mechanisms and machines, control and
monitoring systems of machines, accuracy and reliability of
machines and mechanisms, robots and manipulators to the mechanisms
of textile machines.
"People like myself, who truly feel at home in several countries,
are not strictly at home anywhere," writes Abraham Pais, one of the
world's leading theoretical physicists, near the beginning of this
engrossing chronicle of his life on two continents. The author of
an immensely popular biography of Einstein, Subtle Is the Lord,
Pais writes engagingly for a general audience. His "tale" describes
his period of hiding in Nazi-occupied Holland (he ended the war in
a Gestapo prison) and his life in America, particularly at the
newly organized Institute for Advanced Study in Princeton, then
directed by the brilliant and controversial physicist Robert
Oppenheimer. Pais tells fascinating stories about Oppenheimer,
Einstein, Bohr, Sakharov, Dirac, Heisenberg, and von Neumann, as
well as about nonscientists like Chaim Weizmann, George Kennan,
Erwin Panofsky, and Pablo Casals. His enthusiasm about science and
life in general pervades a book that is partly a memoir, partly a
travel commentary, and partly a history of science. Pais's charming
recollections of his years as a university student become somber
with the German invasion of the Netherlands in 1940. He was
presented with an unusual deadline for his graduate work: a German
decree that July 14, 1941, would be the final date on which Dutch
Jews could be granted a doctoral degree. Pais received the degree,
only to be forced into hiding from the Nazis in 1943, practically
next door to Anne Frank. After the war, he went to the Institute of
Theoretical Physics in Copenhagen to work with Niels Bohr. 1946
began his years at the Institute for Advanced Study, where he
worked first as a Fellow and then as a Professor until his move to
Rockefeller University in 1963. Combining his understanding of
disparate social and political worlds, Pais comments just as
insightfully on Oppenheimer's ordeals during the McCarthy era as he
does on his own and his European colleagues' struggles during World
War II. Originally published in 1997. The Princeton Legacy Library
uses the latest print-on-demand technology to again make available
previously out-of-print books from the distinguished backlist of
Princeton University Press. These editions preserve the original
texts of these important books while presenting them in durable
paperback and hardcover editions. The goal of the Princeton Legacy
Library is to vastly increase access to the rich scholarly heritage
found in the thousands of books published by Princeton University
Press since its founding in 1905.
Gasphase synthesis of nanoparticles and nanostructured materials
offers high chemical purity and crystalline quality as well as
scalability up to industrial quantities. It is therefore highly
attractive for both basic and applied science. This book gives a
broad and coherent overview of the complete production and value
chain from nanoparticle formation to integration into products and
devices. Written by experts in the field - with backgrounds in
electrical engineering, experimental and theoretical physics,
materials science, and chemical engineering - the book offers a
deep insight into the fabrication, characterization and application
of nanoparticles from the gasphase. The first part of the book,
"Formation", covers chemical and growth kinetics, in-situ
diagnostics, numerical simulation, process development and material
deposition. In the second section, the reader is introduced to the
structure and dynamics that lead to functional nanoscale systems
and materials. The third section, "Properties and Applications",
provides a detailed discussion of the optical, electronic, magnetic
and chemical characteristics of nanostructures and demonstrates how
these can be used in tailored materials and devices.
Quantum Aspects of Light Propagation provides an overview of
spatio-temporal descriptions of the electromagnetic field in linear
and nonlinear dielectric media, appropriate to macroscopic and
microscopic theories. Readers will find an introduction to
canonical quantum descriptions of light propagation in a nonlinear
dispersionless dielectric medium, and an approach to linear and
nonlinear dispersive dielectric media. Illustrated by optical
processes, these descriptions are simplified by a transition to
one-dimensional propagation. Quantum theories of light propagation
in optical media are generalized from dielectric media to
magnetodielectrics, in addition to a presentation of classical and
nonclassical properties of radiation propagating through
negative-index media. Valuable analyses of quantization in
waveguides, photonic crystals, and propagation in strongly
scattering media are also included, along with various optical
resonator properties. The theories are utilized for the quantum
electrodynamical effects to be determined in periodic dielectric
structures which are known to be a basis of new schemes for lasing
and a control of light field state. Quantum Aspects of Light
Propagation is a valuable reference for researchers and engineers
involved with general optics, quantum optics and electronics,
nonlinear optics, and photonics.
One of the critical issues in semiconductor technology is the
precise electrical characterization of ultra-shallow junctions.
Among the plethora of measurement techniques, the optical
reflectance approach developed in this work is the sole concept
that does not require physical contact, making it suitable for
non-invasive in-line metrology. This work develops extensively all
the fundamental physical models of the photomodulated optical
reflectance technique and introduces novel approaches that extend
its applicability from dose monitoring towards detailed carrier
profile reconstruction. It represents a significant breakthrough in
junction metrology with potential for industrial implementation.
Nanophotonics, a novel optical technology, utilizes the local
interaction between nanometric particles via optical near fields.
The optical near fields are the elementary surface excitations on
nanometric particles, i.e. dressed photons that carry material
energy. Of the variety of qualitative innovations in optical
technology realized by nanophotonics, this books focuses on
fabrication. To fabricate nano-scale photonic devices with
nanometer-scale controllability in size and position, we developed
a self-assembly method for size- and position-controlled ultra-long
nanodot chains using a novel effect of near-field optical
desorption. A novel deposition and etching scheme under nonresonant
conditions is also demonstrated and its origin is reviewed.
Quantum cryptography (or quantum key distribution) is a
state-of-the-art technique that exploits properties of quantum
mechanics to guarantee the secure exchange of secret keys. This
2006 text introduces the principles and techniques of quantum
cryptography, setting it in the wider context of cryptography and
security, with specific focus on secret-key distillation. The book
starts with an overview chapter, progressing to classical
cryptography, information theory (classical and quantum), and
applications of quantum cryptography. The discussion moves to
secret-key distillation, privacy amplification and reconciliation
techniques, concluding with the security principles of quantum
cryptography. The author explains the physical implementation and
security of these systems, enabling engineers to gauge the
suitability of quantum cryptography for securing transmission in
their particular application. With its blend of fundamental theory,
implementation techniques, and details of recent protocols, this
book will be of interest to graduate students, researchers, and
practitioners in electrical engineering, physics, and computer
science.
The field of organic and printed electronics is well established in
terms of academic, scientific, and technological research but is
still an emerging one in terms of mass industrial applications such
as OLED displays and lighting and organic photovoltaics. This book
provides a comprehensive introduction to organic and printed
electronics, their fundamental aspects, core technologies, and
applications, and it is the first book of its kind specifically
designed to address students in their final undergraduate or
beginning graduate studies, as well as engineers interested in
approaching this field.
Applications of some selected soft computing methods to acoustics
and sound engineering are presented in this book. The aim of this
research study is the implementation of soft computing methods to
musical signal analysis and to the recognition of musical sounds
and phrases. Accordingly, some methods based on such learning
algorithms as neural networks, rough sets and fuzzy-logic were
conceived, implemented and tested. Additionally, the
above-mentioned methods were applied to the analysis and
verification of subjective testing results. The last problem
discussed within the framework of this book was the problem of
fuzzy control of the classical pipe organ instrument.
The obtained results show that computational intelligence and soft
computing may be used for solving some vital problems in both
musical and architectural acoustics.
This book gives an overview of nanostructures and nanomaterials
applied in the fields of energy and organic electronics. It
combines the knowledge from advanced deposition and processing
methods of nanomaterials such as laser-based growth and
nanopatterning and state-of-the-art characterization techniques
with special emphasis on the optical, electrical, morphological,
surface and mechanical properties. Furthermore it contains
theoretical and experimental aspects for different types of
nanomaterials such as nanoparticles, nanotubes and thin films for
organic electronics applications. The international group of
authors specifically chosen for their distinguished expertise
belong to the academic and industrial world in order to provide a
broader perspective. The authors take an interdisciplinary approach
of physics, chemistry, engineering, materials science and
nanotechnology. It appeals to researchers and graduate students.
This first book on load-pull systems is intended for readers with a
broad knowledge of high frequency transistor device
characterization, nonlinear and linear microwave measurements, RF
power amplifiers and transmitters. Load-Pull Techniques with
Applications to Power Amplifier Design fulfills the demands of
users, designers, and researchers both from industry and academia
who have felt the need of a book on this topic. It presents a
comprehensive reference spanning different load-pull measurement
systems, waveform measurement and engineering systems, and
associated calibration procedures for accurate large signal
characterization. Besides, this book also provides in-depth
practical considerations required in the realization and usage of
load-pull and waveform engineering systems. In addition, it also
provides procedure to design application specific load-pull setup
and includes several case studies where the user can customize
architecture of load-pull setups to meet any specific measurement
requirements. Furthermore, the materials covered in this book can
be part of a full semester graduate course on microwave device
characterization and power amplifier design.
This book, which is a result of a coordinated effort by 22
researchers from five different countries, addresses the methods of
determining the local and global mechanical properties of a variety
of materials: metals, plastics, rubber, and ceramics. The first
chapter treats nanoindentation techniques comprehensively. Chapter
2 concerns polymer surface properties using nanoindentation
techniques. Chapter 3 deals with the wear properties of dental
composites. Chapter 4 compares the global and local properties of a
lead-free solder. Chapter 5 discusses the methods of determining
plastic zones at the crack tip. Fatigue resistance of a synthetic
polymer under different loading conditions is dealt with in Chapter
6. Chapter 7 is a review of the methods used to measure fatigue
crack growth resistance. Chapter 8 treats bulk and surface
properties of coated materials, and the final chapter presents a
method for determining elastic constants using a resonance
technique. All in all, its depth of coverage makes it a must-have
for research scholars, graduate students, and teachers.
This book presents the latest and complete information about
various types of piezosensors. A sensor is a converter of the
measured physical size to an electric signal. Piezoelectric
transducers and sensors are based on piezoelectric effects. They
have proven to be versatile tools for the measurement of various
processes. They are used for quality assurance, process control and
for research and development in many different industries. In each
area of application specific requirements to the parameters of
transducers and sensors are developed. The book presents the
fundamentals, technical design and details and practical
applications. Methods to design piezosensors are described,
allowing to create sensors with unique properties. New methods to
measure physical sizes and new constructions of sensors including
large area of piezosensors are described in this book. This book is
written for specialists in transforming hydroacoustics,
non-destructive control, measuring technique, sensors development
for automatic control and also for graduate students.
This book gives a representative survey of the state of the art of
research on gas-surface interactions. It provides an overview of
the current understanding of gas surface dynamics and, in
particular, of the reactive and non-reactive processes of atoms and
small molecules at surfaces. Leading scientists in the field, both
from the theoretical and the experimental sides, write in this book
about their most recent advances. Surface science grew as an
interdisciplinary research area over the last decades, mostly
because of new experimental technologies (ultra-high vacuum, for
instance), as well as because of a novel paradigm, the 'surface
science' approach. The book describes the second transformation
which is now taking place pushed by the availability of powerful
quantum-mechanical theoretical methods implemented numerically. In
the book, experiment and theory progress hand in hand with an
unprecedented degree of accuracy and control. The book presents how
modern surface science targets the atomic-level understanding of
physical and chemical processes at surfaces, with particular
emphasis on dynamical aspects. This book is a reference in the
field.
The PUILS series delivers up-to-date reviews of progress in
Ultrafast Intense Laser Science, a newly emerging interdisciplinary
research field spanning atomic and molecular physics, molecular
science and optical science which has been stimulated by the recent
developments in ultrafast laser technologies. Each volume compiles
peer-reviewed articles authored by researchers at the forefront of
each their own subfields of UILS. Every chapter opens with an
overview of the topics to be discussed, so that researchers
unfamiliar to the subfield as well as graduate students can grasp
the importance and attractions of the research topic at hand. These
are followed by reports of cutting-edge discoveries. This eighth
volume covers a broad range of topics from this interdisciplinary
research field, focusing on molecules interacting with ultrashort
and intense laser fields, advanced technologies for the
characterization of ultrashort laser pulses and their applications,
laser plasma formation and laser acceleration.
This volume is based on lectures and discussions presented at a
NATO Advanced Study Institute on ELF and VLF Radio Wave
Propagation, which was held in Norway April 1974. The study of
propagation of electromagnetic waves with frequen cies below 100
kHz has long traditions in ionospheric physics. To-day, this
frequency range is still of great importance, both to the
physicist, who uses the waves as diagnostic tools to study the
earth's environment and to the engineer who exploits the
characteris tics of these waves to improve communications,
navigation and timing systems. In recent years the active interest
in the field has led to very rapid progress in the development of
propagation theory as well as in the application of this theory to
the solution of practical problems. The intention of the Organizing
Committee for this Conference was to bring together theoreticians
and experi mentalists working on the various aspects of wave
propagation, in order to stimulate a fruitful discussion and
exchange of ideas."
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