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Books > Professional & Technical > Mechanical engineering & materials
Nanomaterials and nanostructures are the original product of nanotechnology, and they are the key building blocks for enabling technologies. In this context, this book presents a concise overview of the synthesis and characterization methods of nanomaterials and nanostructures, while integrating facets of physics, chemistry, and engineering. The book summarizes the fundamentals and technical approaches in synthesis, and processing of nanostructures and nanomaterials, giving the reader a systematic and quick picture of the field. The text focuses on functional aspects of nanomaterials that have a high relevance to immediate applications, such as catalysis, energy harvesting, biosensing, and surface functionalization. There are chapters addressing nanostructured materials and composites, and covering basic properties and requirements of this new class of engineered materials.
These proceedings contain the papers presented at the 4th
International Symposium on Engineering Turbulence Modelling and
Measurements held at Ajaccio, Corsica, France from 24-26 May 1999.
It follows three previous conferences on the topic of engineering
turbulence modelling and measurements.
This book provides an introduction to topological matter, with a focus on insulating bulk systems. A number of prerequisite concepts and tools are first laid out, including the notion of symmetry transformations, the band theory of semiconductors and aspects of electronic transport. The main part of the book discusses realistic models for both time-reversal-preserving and -violating topological insulators, as well as their characteristic responses to external perturbations. Special emphasis is given to the study of the anomalous electric, thermal and thermoelectric transport properties, the theory of orbital magnetisation, and the polar Kerr effect. The topological models studied throughout this book become unified and generalised by means of the tenfold topological-classification framework and the respective systematic construction of topological invariants. This approach is further extended to topological superconductors and topological semimetals. This book covers a wide range of topics and aims for a transparent presentation of the technical aspects involved. For this purpose, homework problems are also provided in dedicated hands-on sections. Given its structure, and the required background level of the reader, this book is particularly recommended for graduate students or researchers who are new to the field.
Manufacturing operations are the real wealth creators within a business, accounting for the majority of management and financial assets needed to sustain the company. Make it encapsulates the author's many years of experience gained designing manufacturing systems and supply-chains in factories across the world. It provides a proven, logical sequence of events needed to design effective modular factories capable of competing with the world's best. In their 1999 'Best-Managed' Companies Awards, 'Aviation Week
and Space Technology' (Vol. 150, No. 22) quoted the author's former
company, Lucas Aerospace, as achieving 'Most improved major
aerospace company 1994 - 1998' status, ranking it second in
Competitiveness, assessed by an amalgamation of asset utilisation,
productivity and financial stability.
Engineers need to be familiar with the fundamental principles and concepts in materials and structures in order to be able to design structurers to resist failures. For 4 decades, this book has provided engineers with these fundamentals. Thoroughly updated, the book has been expanded to cover
everything on materials and structures that engineering students
are likely to need. Starting with basic mechanics, the book goes on
to cover modern numerical techniques such as matrix and finite
element methods. There is also additional material on composite
materials, thick shells, flat plates and the vibrations of complex
structures. Illustrated throughout with worked examples, the book
also provides numerous problems for students to attempt.
With the gradual development of rules for designing against
instability the idea emerged, in London, in 1974 to hold an
International Colloquium treating every aspect of structural
instability of steel structures.
The inspiration for this book came from an American Carbon Society
Workshop entitled "Carbon Materials for Advanced Technologies"
which was hosted by the Oak Ridge National Laboratory in 1994.
Chapter 1 contains a review of carbon materials, and emphasizes the
structure and chemical bonding in the various forms of carbon,
including the four allotropes diamond, graphite, carbynes, and the
fullerenes. In addition, amorphous carbon and diamond films, carbon
nanoparticles, and engineered carbons are discussed. The most
recently discovered allotrope of carbon, "i.e.," the fullerenes,
along with carbon nanotubes, are more fully discussed in Chapter 2,
where their structure-property relations are reviewed in the
context of advanced technologies for carbon based materials. The
synthesis, structure, and properties of the fullerenes and
nanotubes, and modification of the structure and properties through
doping, are also reviewed. Potential applications of this new
family of carbon materials are considered. The manufacture and
applications of adsorbent carbon fibers are discussed in Chapter 3.
The manufacture, structure and properties of high performance
fibers are reviewed in Chapter 4, and the manufacture and
properties of vapor grown fibers and their composites are reported
in Chapter 5. The properties and applications of novel low density
composites developed at Oak Ridge National Laboratory are reported
in Chapter 6. Coal is an important source of energy and an abundant
source of carbon. The production of engineering carbons and
graphite from coal via a solvent extraction route is described in
Chapter 7. Applications of activated carbons are discussed in
Chapters 8-10, including their use in the automotive arena as
evaporative loss emission traps (Chapter 8), and in vehicle natural
gas storage tanks (Chapter 9). The application of activated carbons
in adsorption heat pumps and refrigerators is discussed in Chapter
10. Chapter 11 reports the use of carbon materials in the fast
growing consumer electronics application of lithium-ion batteries.
The role of carbon materials in nuclear systems is discussed in
Chapters 12 and 13, where fusion device and fission reactor
applications, respectively, are reviewed. In Chapter 12 the major
technological issues for the utilization of carbon as a plasma
facing material are discussed in the context of current and future
fusion tokamak devices. The essential design features of graphite
moderated reactors, (including gas-, water- and molten salt-cooled
systems) are reviewed in Chapter 13, and reactor environmental
effects such as radiation damage and radiolytic corrosion are
discussed. The fracture behaviour of graphite is discussed in
qualitative and quantitative terms in Chapter 14. The applications
of Linear Elastic Fracture Mechanics and Elastic-Plastic Fracture
Mechanics to graphite are reviewed and a study of the role of small
flaws in nuclear graphites is reported.
The rapid technological developments during the later half of the
20th century have demanded materials that are stronger, capable of
use at much higher temperatures, more corrosion-resistant, and much
less expensive than those currently used. These demands become even
more significant on the threshold of the new century and the
millennium. Significant improvements in properties can only be
achieved by processing the materials under far-from-equilibrium (or
non-equilibrium) conditions. Several new processing technologies
have been developed during the past few decades including, rapid
solidification, spray forming, mechanical alloying, ion mixing,
vapor deposition, laser processing and plasma processing. Remarkable advances have been made in recent years in the
science and technology of these processes used to synthesize,
characterize, and apply these materials processed under
non-equilibrium conditions. Some of these techniques have evolved
from laboratory curiosity to commercial-scale manufacturing in just
a few years. In other cases, industrial necessity prompted
development of the technology, and the science followed
later. The chapters in this book have been written by people who are
world-recognized experts in their respective fields. Each chapter
describes the principles, processing techniques, special features
of the materials produced, and their applications. An extensive
list of references is provided at the end of each chapter that will
facilitate location of additional information on specific aspects
of any technique.
This collection of 185 papers results from contributions made at
Electroceramics VI which forms part of the joint triple meeting
held in Montreaux, Switzerland in August 1998. The joint meeting
covered recent advances in the broad and rapidly progressing field
of electroceramics, ferroelectrics and polar dielectrics. More than
550 papers were presented at the triple meeting (250 of them at
Electorceramics VI '98) including a series of plenary lectures
highlighting research areas of strong current and emerging
interests. The meeting demonstrated the wide variety of new
applications being developed, based in particular on
ferroelectrics, polar dielectrics, ionic conductors and any other
functional ceramics. In comparison with previous meetings, the present one showed the growing importance of surfaces, interfaces and other boundaries, e.g. domain walls. Size effects and questions related to nanotechnology were comprehensively discussed both on the academic level and for device realizations. Microdevices and their integration problems (and solutions) were at the heart of many reports. The papers reflected the extensive activities in this interdisciplinary area, while the balance between presentations from academic laboratories and from industrial R&D laboratories was a testimony to its vitality. The volume contains 185 papers selected after refereeing of the 220 papers submitted for publication.
The sea is steadily rising, presently at 3.4 mm per year, and it is already costing billions in Venice, on the Thames river and in New York City, to counter sea-level-related surges. Experts anticipate an accelerated rise, and credible predictions for sea-level rise by the year 2100 range from 12 inches to above six feet. Study of the Earth's geologic history, through ice-core samples, links sea-level rise to temperature rise. Since the lifetime of carbon dioxide in the atmosphere is measured in centuries, and it has upset the balance of incoming and outgoing energy, the Earth's temperature will continue to rise, even if carbon burning ceases. Engineering the Earth's solar input appears increasingly attractive and practical as a means to lower the Earth's temperature and, thus, to lower the sea level. The cost of engineering the climate appears small; comparable, even, to the already-incurred costs of sea-level rise represented by civil engineering projects in London, Venice and New York City. Feasible deployment of geoengineering, accompanied by some reduction in carbon burning, is predicted to lower the sea level by the order of one foot by 2100, which negates the expected rise and would provide an immense economic benefit. The accompanying lower global temperature would reduce the severity of extreme weather and restore habitability to lethally hot parts of the world.
Over the last several years, the four authors have jointly
conducted research into the analysis of vibrating Mindlin plates as
a collaborative project between Nanyang Technological University,
The National University of Singapore, and The University of
Queensland. The research was prompted by the fact that there is a
dearth of vibration results for Mindlin plates when compared to
classical thin plate solutions. To generate the vibration results,
the authors have successfully employed the Ritz method for general
plate shapes and boundary conditions. The Ritz method, once thought
to be awkward for general plate analysis, can be automated through
suitable trial functions (for displacements) that satisfy the
geometric plate boundary conditions "a priori." This work has been
well-received by academics and researchers, as indicated by the
continual requests for the authors' papers and the Ritz software
codes. This monograph is written with the view to share this
so-called "p"-Ritz method for the vibration analysis of Mindlin
plates and its software codes with the research community. To the
authors' knowledge, the monograph contains the first published Ritz
plate software codes of its kind.
The progress in device technologies are surveyed in this volume. Included are Si/ (Si-Ge) heterojunctions for high-speed integrated circuits. Schottky-barrier arrays in Si and Si-Ge alloys for infrared imaging, III-V quantum-well detector structures operated in the heterodyne mode for high-data-rate communications, and III-V heterostructures and quantum-wells for infrared transmissions.
This book examines the physical testing of textiles in the form of fibre, yarn and fabric, the emphasis throughout eing on standard and reproducible tests. After an introductory explanation of sampling and measurement, the author explores the effects of moisture on textiles, then goes on to discuss fibre dimension, yarn tests for linear density, twist, evenness and hairiness, tensile strength, and dimensional stability and serviceability. Also covered are aspects of comfort and fabric handle, colour fastness and quality assurance. The book's comprehensive coverage of the physical properties of textiles makes it an essential reference for managers in the textiles industry concerned with quality assurance, garment and fabric technologists, and students of textile science and engineering.
As plastics are being used more extensively in high-performance markets, it is imperative that designers and engineers understand all aspects of polymer behavior over an extended service life. Dynamic Mechanical Analysis for Plastics Engineering describes practical uses for DMA information. All of the information for 120 families of thermoplastics is based on independent test data conducted exclusively for this product and is not available through any other source. This PDL addition shows how to use the DMA data to predict, at various temperatures, each materials estimated service life and potential for failure. This book explains the correlation between time and temperature-dependence and illustrates how time-dependent responses such as creep and stress relaxation affect the practical utility of different materials. Basic polymer structures are discussed and test results show how these structural details can be detected and understood.
These proceedings contain the reviewed papers presented at the
Symposium J on "Ion Implantation into Semiconductors, Oxides and
Ceramics," which was held at the Spring Meeting of the European
Materials Research Society in Strasbourg, France, 16-19, June 1998.
The symposium attracted 110 contributions, with authors from 31
nations in 5 continents. It was thereby the largest in a series of
E-MRS ion beam symposia, documenting the importance of ion beam
techniques and research in this area.
While research on ultrasonics has been covered in earlier volumes
of the Physical Acoustics series, Volumes 23 and 24 demonstrate the
successful commercialization of devices and instruments arising
from research in this area. These volumes will assist in the
process of bringing research output into the marketplace to the
benefit of customers.
While research on ultrasonics has been covered in earlier volumes
of the Physical Acoustics series, Volumes 23 and 24 demonstrate the
successful commercialization of devices and instruments arising
from research in this area. These volumes will assist in the
process of bringing research output into the marketplace to the
benefit of customers.
These two volumes contain the Proceedings of the 9th IFAC symposium
on Information Control in Manufacturing which took place in Nancy
and Metz, France, between 24-26 June, 1998.
Thin-plated structures are used extensively in building
construction, automobile, aircraft, shipbuilding and other
industries because of a number of favourable factors such as high
strength-weight ratio, development of new materials and processes
and the availability of efficient analytical methods. This class of
structure is made by joining thin plates together at their edges
and they rely for their rigidity and strength upon the tremendous
stiffness and load-carrying capacity of the flat plates from which
they are made. Many of the problems encountered in these structures
arise because of the effects of local buckling. The knowledge of
various facets of this phenomenon has increased dramatically since
the 1960s. Problem areas which were hitherto either too complex for
rigorous analysis or whose subtleties were not fully realized have
in these years been subjected to intensive study. Great advances
have been made in the areas of inelastic buckling. The growth in
use of lightweight strong materials, such as fibre-reinforced
plastics has also been a contributory factor towards the need for
advances in the knowledge of the far post-buckling range. The
conference is a sequel to the international conference organised by
the University of Strathclyde in December 1996 and this
international gathering will provide the opportunity for discussion
of recent developments and trends in design of thin-walled
structures.
Mechatronics, a synergistic combination of mechanical, electronic
and computing engineering technologies, is a truly
multidisciplinary approach to engineering. New products based on
mechatronic principles are demonstrating reduced mechanical
complexity, increased performance and often previously impossible
capabilities. This book contains the papers presented at the UK
Mechatronics Forum's 6th International Conference, held in Skovde,
Sweden, in September 1998. Many of these high-quality papers
illustrate the tremendous influence of mechatronics on such areas
as manufacturing machinery, automotive engineering, textiles
manufacture, robotics, and real-time control and vision systems.
There are also papers describing developments in sensors,
actuators, control and data processing techniques, such as fuzzy
logic and neural networks, all of which have practical application
to mechatronic systems.
The 4th International Conference on Low Cycle Fatigue and
Elasto-Plastic Behaviour of Materials was held from 7-11 September
1998 in Garmisch-Partenkirchen, Germany. In response to a call for papers, nearly 200 extended abstracts
from 32 countries were submitted to the organizing committee. These
papers were presented at the conference as invited lectures or
short contributions and as oral or poster presentation. All the
papers were presented in poster form in extended poster sessions a
peculiarity of the LCF Conferences which allows an intense,
thorough discussion of all contributions. Each chapter provides a comprehensive overview of a materials
class or a given subject. Many contributions could have been
included in two or even three chapters and so, in order to give a
better overview of the content, the reader will find a subject
index, a material index and an author index in the back of the
book.
The IFAC Workshop on Intelligent Components for Vehicles (ICV'98) was held in Seville (Spain), on March 23-24 1998. The event follows the Workshop on Intelligent Components for Autonomous and Semiautonomous Vehicles (ICASAV'95) held in Toulouse (France, October 1995). The main objective of ICV'98 was to bring together specialists on components and instruments for automotive systems, mobile robots and vehicles in general to enhance the value of their experience in both hardware and software intelligent components. Future vehicles will deal more and more with autonomous functions to improve safety and traffic management and to reduce consumption and pollution. Numerous on-board decision systems will replace the driver in critical running phases. The problems and solutions experienced, by adopting this new technology, will bring out many common points with other transportation systems and mobile robots. Research and Developments on Mobile Robotics have produced many components for perception, control and planning that can be used in vehicles for collision detection and avoidance, position estimation, guidance and manoeuvering aids for drivers, advanced teleoperation, and other applications. The topics of the Workshop are in an emerging field in which the research is quickly being converted into industrial products. Several applications in the automotive domain, marine vehicles, agricultural and others were included in the program. In addition to the presentation of the papers, ICV also included
a plenary talk and a round table about intelligent components for
future vehicles with the participation of several industrial
companies.
This book introduces process control to engineers and technicians
unfamiliar with control techniques, providing an understanding of
how to actually apply control in a real industrial environment. It
avoids analytical treatment of the numerous statistical process
control techniques to concentrate on the practical problems
involved. A practical approach is taken, making it relevant in
virtually all manufacturing and process industries.
Devising optimal strategy for maintaining industrial plant can be a
difficult task of daunting complexity. This book aims to provide
the plant engineer with a comprehensive and systematic approach, a
framework of guidelines, for tackling this problem, i.e. for
deciding maintenance objectives, formulating equipment life plans
and plant maintenance schedules, designing the maintenance
organisation and setting up appropriate systems of documentation
and control.
This text provides a uniform and consistent approach to diversified
problems encountered in the study of dynamical processes in
condensed phase molecular systems. Given the broad
interdisciplinary aspect of this subject, the book focuses on three
themes: coverage of needed background material, in-depth
introduction of methodologies, and analysis of several key
applications. The uniform approach and common language used in all
discussions help to develop general understanding and insight on
condensed phases chemical dynamics. The applications discussed are
among the most fundamental processes that underlie physical,
chemical and biological phenomena in complex systems. |
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