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Books > Professional & Technical > Mechanical engineering & materials
This book reviews the state of the art in the use of organic
materals as physical, chemical and biomedical sensors in a variety
of application settings. Topics covered include organic
semiconductors for chemical and physical sensing; conducting
polymers in sensor applications; chemically functionalized organic
semiconductors for highly selective sensing; composite
organic-inorganic sensors; artificial skin applications; organic
thin film transistor strain gauges for biomedical applications;
OTFT infrared sensors for touchless human-machine interaction;
smart fabric sensors and e-textile technologie; image capture with
organic sensors; organic gas sensors and electronic noses;
electrolyte gated organic transistors for bio-chemical sensing;
ion-selective organic electrochemical transistors; DNA biosensors;
metabolic organic sensors; and conductive polymer based sensors for
biomedical applications.
Control volume finite element methods (CVFEM) bridge the gap
between finite difference and finite element methods, using the
advantages of both methods for simulation of multi-physics problems
in complex geometries. In Hydrothermal Analysis in Engineering
Using Control Volume Finite Element Method, CVFEM is covered in
detail and applied to key areas of thermal engineering. Examples,
exercises, and extensive references are used to show the use of the
technique to model key engineering problems such as heat transfer
in nanofluids (to enhance performance and compactness of energy
systems), hydro-magnetic techniques in materials and
bioengineering, and convective flow in fluid-saturated porous
media. The topics are of practical interest to engineering,
geothermal science, and medical and biomedical sciences.
"Damage on Pumps and Systems. The Handbook for the Operation of
Centrifugal Pumps" offers a combination of the theoretical basics
and practical experience for the operation of circulation pumps in
the engineering industry.
Centrifugal pumps and systems are extremely vulnerable to damage
from a variety of causes, but the resulting breakdown can be
prevented by ensuring that these pumps and systems are operated
properly. This book provides a total overview of operating
centrifugal pumps, including condition monitoring, preventive
maintenance, life cycle costs, energy savings and economic aspects.
Extra emphasis is given to the potential damage to these pumps and
systems, and what can be done to prevent breakdown.
Addresses specific issues about pumping of metal chips, sand,
abrasive dust and other solids influidsEmphasis on economic and
efficiency aspects of predictive maintenance and condition
monitoring Uses life cycle costs (LCC) to evaluate and calculatethe
costs of pumping systems "
Recent agricultural, food, and pharmaceutical research focuses
attention on the development of delivery systems that can
encapsulate, protect, and deliver natural compounds. Nanoemulsions
are recognized as the best delivery systems for natural-origin
nutraceuticals and phytochemicals, having many agri-food
applications. Bio-based Nanoemulsions for Agri-Food Applications
provides information on food-grade nanoemulsions and their
application in agriculture and the food industry. This book covers
concepts, techniques, current advances, and challenges in the
formulation of the application of emerging food grade
nanoemulsions. Particular attention is placed on food-grade
nanoemulsion production methods and components used, such as
plant/microbial products, biosurfactants, cosurfactants,
emulsifiers, ligand targets, and bioactive/functional ingredients.
This is an important reference source for materials scientists,
engineers and food scientists who are looking to understand how
nanoemulsions are being used in the agri-food sector.
Reinforced concrete structures are one of the major structural
types and must adhere to design regulation codes. It is ideal to
find the best design (section dimension, material type, and amount
of reinforcement) with the minimum cost providing the design
constraints (design formulation considering loading of structure).
Metaheuristic methods inspired by natural phenomena can consider
design constraints by combining the analyses of formulation of
reinforced concrete structures with an iterative numerical
algorithm using several convergence options of random generation of
candidate design solutions. Metaheuristic Approaches for Optimum
Design of Reinforced Concrete Structures: Emerging Research and
Opportunities is a pivotal reference source that focuses on several
metaheuristic algorithms and the design of several types of
structural members. Additionally, retrofit applications and seismic
design issues are considered for readers in earthquake zones.
Highlighting a wide range of topics including algorithms, design
variables, and retrofit design, this book is ideally designed for
architects, engineers, urban designers, government officials,
policymakers, researchers, academicians, and students.
Many physical properties of our universe, such as the relative
strength of the fundamental interactions, the value of the
cosmological constant, etc., appear to be fine-tuned for existence
of human life. One possible explanation of this fine tuning assumes
existence of a multiverse, which consists of a very large number of
individual universes having different physical properties.
Intelligent observers populate only a small subset of these
universes, which are fine-tuned for life. In this book we will
review several interesting metamaterial systems, which capture many
features of important cosmological models and offer insights into
the physics of many other non-trivial spacetime geometries, such as
microscopic black holes, closed time-like curves (CTCs) and the
Alcubierre warp drive.
This book describes the fundamentals and potential applications
of friction stir superplasticity for unitized structures .
Conventional superplastic forming of sheets is limited to the
thickness of 3 mm because the fine grained starting material is
produced by rolling. Friction stir superplasticity has grown
rapidly in the last decade because of the effectiveness of
microstructural refinement. The thickness of the material remains
almost constant, and that allows for forming of thick
sheets/plates, which was not possible before. The field has reached
a point where designers have opportunities to expand the extent of
unitized structures, which are structures in which the traditional
primary part and any supporting structures are fabricated as a
single unit. With advanced optimization and material
considerations, this class of structures can be lighter weight and
more efficient, making them less costly, as well as mechanically
less complex, reducing areas of possible failure.
Discusses how friction stir processing allows selective
microstructural refinement without thickness changeDemonstrates how
higher thickness sheets and plates can be superplastically
formedExamples are presented for aluminum, magnesium and titanium
alloysCovers the production of low-cost unitized structures by
selectively processing cast sheets/plates "
Open microfluidics, the study of microflows having a boundary with
surrounding air, encompasses different aspects such as paper or
thread-based microfluidics, droplet microfluidics and open-channel
microfluidics. Open-channel microflow is a flow at the micro-scale,
guided by solid structures, and having at least a free boundary
(with air or vapor) other than the advancing meniscus. This book is
devoted to the study of open-channel microfluidics which (contrary
to paper or thread or droplet microfluidics) is still very sparsely
documented, but bears many new applications in biology,
biotechnology, medicine, material and space sciences. Capillarity
being the principal force triggering an open microflow, the
principles of capillarity are first recalled. The onset of
open-channel microflow is next analyzed and the fundamental notion
of generalized Cassie angle (the apparent contact angle which
accounts for the presence of air) is presented. The theory of the
dynamics of open-channel microflows is then developed, using the
notion of averaged friction length which accounts for the presence
of air along the boundaries of the flow domain. Different channel
morphologies are studied and geometrical features such as valves
and capillary pumps are examined. An introduction to two-phase
open-channel microflows is also presented showing that immiscible
plugs can be transported by an open-channel flow. Finally, a
selection of interesting applications in the domains of space,
materials, medicine and biology is presented, showing the
potentialities of open-channel microfluidics.
This comprehensive reference on sheet metal forming and fabrication
provides state-of-the-art reference information for product and
production engineers. Coverage addresses all methods of sheet metal
fabrication technologies, selection of equipment and die materials,
specification of forming practices for specific alloys, and new
techniques for process design and control. This Volume provides you
with practical reference information on the basic processes of
press forming, drawing, bending, spinning, shearing, blanking, and
piercing of sheet with additional coverage on forming with bar,
tube, wire, shapes, or long parts. New content areas
include:Expanded coverage on computer-based methods for process
simulation and control Advanced high-strength steels (AHSS) forming
and material developments Expanded coverage on the evaluation and
mitigation of springback and the troubleshooting of formability
problems Rapid prototyping and die-less flexible manufacturing
techniques such as thermal forming and peen forming Updates on
cold-work powder metallurgy tool steels and tool coatings Updates
and addition of practical reference information on basic operations
of bending, press forming, and press brake forming Application of
tailor weld blanks New process related developments in superplastic
forming and conventional forming of aluminum, titanium, nickel,
magnesium, and refractory alloys Recent process modifications in
hydroforming and high-velocity metal forming Contents Include:
Introduction to Forming Processes Shearing, Cutting, Blanking, and
Piercing Equipment for Forming of Sheet Metal Tooling and
Fabrication for Forming Sheet, Strip, and Plate Forming Processes
for Sheet, Strip, and Plate Forming of Bar, Tube, and Wire Sheet
Forming of Specific Ferrous and Nonferrous Metals Formability
Analysis Process Design and Modeling for Sheet Forming Reference
Information Index
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