Humanhairisananocompositebiological?ber. Maintainingthehealth,feel,shine, color,softness,andoverallaestheticsofthehairishighlydesired. Haircarepr- ucts such as shampoos and conditioners, along with damaging processes such as chemical dyeing and permanent wave treatments, affect the maintenance and groomingprocessandareimportanttostudybecausetheyaltermanyhairprop- ties. Nanoscalecharacterizationofthecellularstructure,mechanicalproperties,and morphological, frictional,andadhesive properties(tribologicalproperties)ofhair areessentialtoevaluateanddevelopbettercosmeticproductsandtoadvancethe understandingofbiologicalandcosmeticscience. Theatomic/frictionforcemic- scope(AFM/FFM)andnanoindenterhavebecomeimportanttoolsforstudyingthe micro/nanoscalepropertiesofhumanhair. Inthisbook,wepresentacomprehensive review of structural, nanomechanical, and nanotribological properties of various hairandskinasafunctionofethnicity,damage,conditioningtreatment,andvarious environments. Variouscellularstructuresofhumanhairand?nesublamellarstr- turesofthecuticleareidenti?edandstudied. Nanomechanicalpropertiessuchas hardness,elasticmodulus,tensiledeformation,fatigue,creep,andscratchresistance arediscussed. Nanotribologicalpropertiessuchasroughness,friction,andadhesion are presented, as well as investigations of conditioner distribution, thickness, and bindinginteractions. Tounderstandtheelectrostaticchargebuilduponhair,surface potentialstudiesarealsopresented. Thebookshouldserveasareferencebookonthebiophysicsofhumanhairand hairtreatments. TheresearchreportedinthisbookwassupportedbyProcter&GambleCo. in Cincinnati,Ohio,andKobe,Japan. IwouldliketothankCarmenLaTorrewhohad assistedinvariouspublicationsonhairresearch. Iwouldalsoliketothankmywife Sudha,whohasbeenforbearingduringthepreparationofthisbook. Powell,OH BharatBhushan November2010 v Contents 1 Introduction-Human Hair, Skin, and Hair Care Products...1 1. 1 HumanHair ...1 1. 1. 1 TheCuticle ...3 1. 1. 2 TheCortexandMedulla...6 1. 2 Skin...7 1. 3 HairCare:CleaningandConditioningTreatments,andDamaging Processes ...10 1. 3. 1 CleaningandConditioningTreatments:Shampoo andConditioner...13 1. 3. 2 DamagingProcesses...18 1. 4 OrganizationoftheBook ...19 2 Experimental Methods...21 2. 1 ExperimentalApparatuses...23 2. 2 ExperimentalProcedure ...26 2. 2. 1 StructuralCharacterizationUsinganAFM...26 2. 2. 2 SurfacePotentialStudiesUsingAFM-Based KelvinProbeMicroscopy...29 2. 2. 3 NanomechanicalCharacterizationUsingNanoindentation ...30 2. 2. 4 InSituTensileDeformationCharacterizationUsingAFM ...32 2. 2. 5 Macroscale Tribological Characterization UsingaFrictionTestApparatus...33 2. 2. 6 Micro/nanotribologicalCharacterizationUsinganAFM...35 2. 3 HairandSkinSamples ...41 3 Structural Characterization Using an AFM ...45 3. 1 StructureofHairCrossSectionandLongitudinalSection ...45 3. 1. 1 CrossSectionofHair...45 3. 1. 2 LongitudinalSectionofHair...45 3. 2 StructureofVariousCuticleLayers...48 3. 2. 1 VirginHair...48 vii viii Contents 3. 2. 2 ChemicallyDamagedHair...50 3. 2. 3 Conditioner-TreatedHair...52 3. 2. 4 EffectofHumidityonMorphologyandCellularStructure ofHairSurface...54 3. 3 Summary...55 4 Nanomechanical Characterization Using Nanoindentation, Nanoscratch, and AFM...57 4. 1 Hardness,Young'sModulus,andCreep...

This textbook is about economically competitive renewable energy sources (RES), including onshore and offshore wind, solar and small-hydro plants, and focusing on the electricity production from these sources. Clearly divided into sections discussing the different RES, the textbook begins with an introduction of AC electrical circuits, aimed at non-electrical engineers. It then offers an economic assessment of renewable energy projects, before discussing photovoltaic technologies and concentrated solar power. It explores the theory of wind to power conversion, electrical generator types and electrical part of offshore systems. Presenting theoretical concepts related to the electrical framework associated with RES, alongside examples and solved problems, this book will clearly introduce the topic of renewable power sources to graduate students, researchers and practitioners alike. After reading the book, readers will be equipped to make a preliminary techno-economic assessment of a RES.

"Acquaints developers of medical devices with the basic concepts and major issues of medical quality assurance and regulatory documents, describes the requirements listed in these documents, and provides strategies for compliance with these requirements."

Between 1608 and 1610 the canopy of the night sky changed forever, ripped open by an object created almost by accident: a cylinder with lenses at both ends. Galileo's Telescope tells the story of how an ingenious optical device evolved from a toy-like curiosity into a precision scientific instrument, all in a few years. In transcending the limits of human vision, the telescope transformed humanity's view of itself and knowledge of the cosmos. Galileo plays a leading-but by no means solo-part in this riveting tale. He shares the stage with mathematicians, astronomers, and theologians from Paolo Sarpi to Johannes Kepler and Cardinal Bellarmine, sovereigns such as Rudolph II and James I, as well as craftsmen, courtiers, poets, and painters. Starting in the Netherlands, where a spectacle-maker created a spyglass with the modest magnifying power of three, the telescope spread like technological wildfire to Venice, Rome, Prague, Paris, London, and ultimately India and China. Galileo's celestial discoveries-hundreds of stars previously invisible to the naked eye, lunar mountains, and moons orbiting Jupiter-were announced to the world in his revolutionary treatise Sidereus Nuncius. Combining science, politics, religion, and the arts, Galileo's Telescope rewrites the early history of a world-shattering innovation whose visual power ultimately came to embody meanings far beyond the science of the stars.

Do you know that black holes can affect time? that Stonehenge is a giant calendar? that the Oracle Bones of the North China Plain predict the phases of the moon? that the Pyramids are giant compasses? how Jonathan Swift knew that Mars had two moons when he wrote Gulliver's Travels? that the effects of black holes are described in the story of Alice in Wonderland? that an atomic reactor existed 2 billion years ago in Equatorial Africa? that an electron on the other side of the galaxy can deflect a billiard ball? that Schr dingers cat is both alive and dead? Derek York fathoms these and many other mysteries of time and space in In Search of Lost Time. A reflection of York's obsession with time and its measurement, the book discusses the mind-bending universe of the special and general theories of relativity, the ghostly world of quantum mechanics, and the unpredictable haunts of chaos. It explores the pyramids of Egypt, Stonehenge, and the South China plain; the universities of Cambridge, McGill, and Chicago; the Patent Office in Berne; and back to the Ethiopian desert on the banks of the Awash River. Companions to share and illuminate the path range from Jonathan Swift's Gulliver's Travels and Lewis Carroll's Alice in Wonderland to J.B. Priestley's Dangerous Corner. It also presents the father of master-spy Kim Philby in the Empty Quarter of Arabia, the fantasist Velikovsky in the clouds, and Newton, Darwin, Rutherford, Einstein and the great Earth scientists of this century who fathomed the depths of lost time and discovered the age of the Earth. Written in an engaging, nontechnical style, this book will delight and amaze all who encounter it.

This book covers several futuristic computing technologies like quantum computing, quantum-dot cellular automata, DNA computing, and optical computing. In turn, it explains them using examples and tutorials on a CAD tool that can help beginners get a head start in QCA layout design. It discusses research on the design of circuits in quantum-dot cellular automata (QCA) with the objectives of obtaining low-complexity, robust designs for various arithmetic operations. The book also investigates the systematic reduction of majority logic in the realization of multi-bit adders, dividers, ALUs, and memory.

Volume II of The Watch Book follows on the successful and comprehensive earlier volume with a magnificently illustrated book about the additional functions and refinements of wristwatches. For centuries, so-called "complications" - any feature of a mechanical timepiece beyond the display of hours, minutes and seconds - have embodied the crowning glory of fine mechanical watchmaking. Among the earliest of these are alarm clocks and calendar movements. Moon phase displays have also been known for several centuries. Striking movements can be considered among the most complex and technically elaborate additional functions, while finishing techniques such as skeletonising, which is mainly done by hand, also characterise the high art of watchmaking. This superbly illustrated volume by watch expert and historian Gisbert L. Brunner is dedicated to advanced functions of mechanical timepieces, their historical development and special technical features. Topics covered in this book include: Hands and numerals; Spring; Astronomical display (moon phases etc.); Tides; Double balance; Alarm clock; Altitude/depth measurement; Skeletonisation. Text in English and German.

This book includes both theoretical conceptualization and practical applications in the fields of product design, architecture, engineering, and materials. The book aimed to inspire scholars and professionals to look at nature as a source of inspiration for developing new project solutions. Moreover, being one of the literature's first direct associations of bionics with sustainability, the book can be used as a reference for those who seek to know more about the theory of bioinspired applications, as well as new technologies, methods, materials, and processes.

This book serves as a quick guide on the latest material systems including their synthesis, fabrication and characterization techniques. It discusses recent developments in different material systems and discusses their novel applications in various branches of science and engineering. The book briefs latest computational tools and techniques that are used to discover new material systems. The book also briefs applications of new emerging materials in various fields including, healthcare, sensors, opto-electronics, high power devices and nano-electronics. This book helps to create a synergy between computational and experimental research methods to better understand a particular material system.

This book presents quantum phononics as an exciting new field of research, and introduces readers to the quantum nature of phonons and their application to quantum technologies. Both the theory of and recent experiments in "quantum phononics," involving e.g. coherent phonons, phonon squeezing, coherent control, and phonon quantum technologies, are presented. The theoretical background of the generation and detection of phonons is described in a way that will be easy to understand for graduate students and experimental scientists who are newcomers to the field. Moreover, the book focuses on coherent phonons produced by ultrafast laser pulses, which can be used for the coherent control of atomic motions in solids and phase transformation. The laser-matter interaction is treated using a density matrix formalism of the time-dependent Schroeedinger equation. In addition, the third-order nonlinear optical response of condensed matter is also described.

This book features selected papers presented at the 16th International Conference on Electromechanics and Robotics 'Zavalishin's Readings' - ER(ZR) 2021, held in St. Petersburg, Russia, on April 14-17, 2021. The contributions, written by professionals, researchers and students, cover topics in the field of automatic control systems, electromechanics, electric power engineering and electrical engineering, mechatronics, robotics, automation and vibration technologies. The Zavalishin's Readings conference was established as a tribute to the memory of Dmitry Aleksandrovich Zavalishin (1900-1968) - a Russian scientist, corresponding member of the USSR Academy of Sciences, and founder of the school of valve energy converters based on electric machines and valve converters energy. The first conference was organized by the Institute of Innovative Technologies in Electromechanics and Robotics at the Saint Petersburg State University of Aerospace Instrumentation in 2006. The 2021 conference was held with XV International Conference "Vibration-2021. Vibration technologies, mechatronics and controlled machines" and VI International Conference "Electric drive, electrical technology and electrical equipment of enterprises", and was organized by St. Petersburg State University of Aerospace Instrumentation (SUAI), St. Petersburg Federal Research Center of the Russian Academy of Sciences (SPC RAS), Southwest State University (SWSU) and Ufa State Oil Technical University (USPTU).

The book provides an introduction of surface plasmons and presents its applications in the sensing of various chemical and biological analyses using optical fiber technology. The field is developed by introducing the surface plasmons for semi-infinite metal-dielectric interface with discussion of their propagation length and penetration depth. Practical issues with the excitation of surface plasmons in different configurations and in various geometries including various means of their excitation have also been included. The book discusses the essential components of fiber optic sensors, their functions and the performance parameters along with the theoretical description of fiber optic Surface Plasmon Resonance (SPR) sensors with respect to various light launching conditions. The fabrication methods and protocols used for the fabrication of the fiber optic SPR chemical and biosensors have been described. Some fiber optic sensing applications based on SPR phenomena and various issues, such as sensitivity enhancement, influence of external stimuli etc, have been an important part of the book.The book will help beginners as well as established researchers in understanding the fundamentals and advancements of optical fiber plasmonic sensor technology. The book contains both the rigorous theory and the experimental techniques of SPR and related variety of sensors.

This book presents the mechanics of piezoelectric semiconductor structures where the main electromechanical coupling of interest is the interaction between mechanical fields and semiconduction. This volume stands as the first full book treatment of this multi-physical subject from the mechanics angle. The analysis of piezoelectric semiconductor structures and devices is an emerging and rapidly growing interdisciplinary area involving materials, electronics, and solid mechanics. It has direct applications in the new area of piezotronics and piezo-phototronics. The book is theoretical, beginning with a phenomenological framework and progressing to include solutions to problems fundamental to the theory and application. Dr. Yang illustrates how in piezoelectric semiconductors, mechanical fields interact with semiconduction through the piezoelectrically produced electric fields by mechanical loads. This provides the foundation of piezotronic and piezo-phototronic devices in which semiconduction is induced, affected, manipulated, or controlled by mechanical fields. Also discussing composite structures of piezoelectric dielectrics and nonpiezoelectric semiconductors as well as thermal effects, the book is an ideal basic reference on the topic for researchers.

This beautifully illustrated volume presents an in-depth look at horology, the scientific study of time and timekeeping. Brimming with more than 150 detailed and full-color images, illustrations, charts, and technical drawings, it's a must-have for anyone interested in the art of watchmaking and watch design. But it's also much more. If you've ever wondered how watches work, or thought about how time influences our lives, then this book is also for you. It offers a comprehensive overview of watch styles, movements, complications, and parts, as well as the basics of starting and caring for a watch collection. A multifaceted study, it discusses the philosophy and measurement of time, the possibility of time travel, and the emergent smartwatch industry. A behind-the-scenes peek into the watch industry, plus pricing and market data, rounds out the contents. Readers will leave these pages with a newfound, renewed, or enhanced love of watchmaking, as well as an increased appreciation for the value of time.

The best-selling Distributed Sensor Networks became the definitive guide to understanding this far-reaching technology. Preserving the excellence and accessibility of its predecessor, Distributed Sensor Networks, Second Edition once again provides all the fundamentals and applications in one complete, self-contained source. Ideal as a tutorial for students or as research material for engineers, the book gives readers up-to-date, practical insight on all aspects of the field. Revised and expanded, this second edition incorporates contributions from many veterans of the DARPA ISO SENSIT program as well as new material from distinguished researchers in the field. Image and Sensor Signal Processing focuses on software issues and the history and future of sensor networks. The book also covers information fusion and power management. Readers of this book may also be interested in Distributed Sensor Networks, Second Edition: Sensor Networking and Applications (ISBN: 9781439862872).

At the start of the Industrial Revolution, it appeared that most scientific instruments were made and sold in London, but by the time of the Great Exhibition in 1851, a number of provincial firms had the self-confidence to exhibit their products in London to an international audience. How had this change come about, and why? This book looks at the four main, and two lesser, English centres known for instrument production outside the capital: Birmingham, Liverpool, Manchester and Sheffield, along with the older population centres in Bristol and York. Making wide use of new sources, Dr Morrison-Low, curator of history of science at the National Museums of Scotland, charts the growth of these centres and provides a characterisation of their products. New information is provided on aspects of the trade, especially marketing techniques, sources of materials, tools and customer relationships. From contemporary evidence, she argues that the principal output of the provincial trade (with some notable exceptions) must have been into the London marketplace, anonymously, and at the cheaper end of the market. She also discusses the structure and organization of the provincial trade, and looks at the impact of new technology imported from other closely-allied trades. By virtue of its approach and subject matter the book considers aspects of economic and business history, gender and the family, the history of science and technology, material culture, and patterns of migration. It contains a myriad of stories of families and firms, of entrepreneurs and customers, and of organizations and arms of government. In bringing together this wide range of interests, Dr Morrison-Low enables us to appreciate how central the making, selling and distribution of scientific instruments was for the Industrial Revolution.

Low dimensional systems have revolutionized the science and technology in several areas. However, their understanding is still a great challenge for the scientific community. Solar energy conversion devices based on nanostructured materials have shown exceptional gains in efficiency and stability. In this context, nanostructures allow an improvement of surface properties, transport and charge transfer, as well as direct application as sensors and storage devices and energy conversion. This book discuss the recent advances and future trends of the nanoscience in solar energy conversion and storage. It explores and discusses recent developments both in theory as well as in experimental studies and is of interest to materials scientists, chemists, physicists and engineers.

This book is long overdue documentation on automatic wristwatches from countries other than Switzerland. These watches were always considered superior micro-mechanical products and posed a challenge to technicians. It was only a question of time, before the collectors' interest in these watches expanded from Swiss watches to those of other origins. A total of 123 watches are illustrated in three different views and are described in detail.

Mechanics Over Micro and Nano Scales covers the recent developments in the fields of mechanics in all forms over micro, meso and nano scales. Special emphasis is given to related novel applications and includes fundamental aspects of fluid and solid mechanics, soft matters, scaling laws, and synthetic biology. At the micro and nano scales, realization of many technologically viable ideas relies on the skillful integration of mechanics at macroscopic and molecular levels, both for solids as well as fluids. Research in the related areas is no longer confined to the understanding of the governing the physics of the system, but is also responsible for triggering a technological revolution at small scales. This book also: discusses the fundamentals of mechanics over micro and nano scales in a level accessible to multi-disciplinary researchers, with a balance of mathematical details and physical principles, covers life sciences and chemistry for use in emerging applications related to mechanics over small scales and demonstrates the explicit interconnection between various scale issues and the mechanics of miniaturized systems. Mechanics Over Micro and Nano Scales is an ideal book for researchers and engineers working in mechanics of both solids and fluids.

Due to their speed, data density, and versatility, optical metrology tools play important roles in today s high-speed industrial manufacturing applications. Handbook of Optical Dimensional Metrology provides useful background information and practical examples to help readers understand and effectively use state-of-the-art optical metrology methods.

The book first builds a foundation for evaluating optical measurement methods. It explores the many terms of optical metrology and compares it to other forms of metrology, such as mechanical gaging, highlighting the limitations and errors associated with each mode of measurement at a general level. This comparison is particularly helpful to current industry users who operate the most widely applied mechanical tools.

The book then focuses on each application area of measurement, working down from large area to medium-sized to submicron measurements. It describes the measurement of large objects on the scale of buildings, the measurement of durable manufactured goods such as aircraft engines and appliances, and the measurement of fine features on the micron and nanometer scales. In each area, the book covers fast, coarse measures as well as the finest measurements possible. Best practices and practical examples for each technology aid readers in effectively using the methods.

Requiring no prior expertise in optical dimensional metrology, this handbook helps engineers and quality specialists understand the capabilities and limitations of optical metrology methods. It also shows them how to successfully apply optical metrology to a vast array of current engineering and scientific problems.

The thesis tackles one of the most difficult problems of modern nanoscale science and technology - exploring what governs thermal phenomena at the nanoscale, how to measure the temperatures in devices just a few atoms across, and how to manage heat transport on these length scales. Nanoscale heat generated in microprocessor components of only a few tens of nanometres across cannot be effectively fed away, thus stalling the famous Moore's law of increasing computer speed, valid now for more than a decade. In this thesis, Jean Spiece develops a novel comprehensive experimental and analytical framework for high precision measurement of heat flows at the nanoscale using advanced scanning thermal microscopy (SThM) operating in ambient and vacuum environment, and reports the world's first operation of cryogenic SThM. He applies the methodology described in the thesis to novel carbon-nanotube-based effective heat conductors, uncovers new phenomena of thermal transport in two- dimensional (2D) materials such as graphene and boron nitride, thereby discovering an entirely new paradigm of thermoelectric cooling and energy production using geometrical modification of 2D materials.

Drawing on their experiences in successfully executing hundreds of MEMS development projects, the authors present the first practical guide to navigating the technical and business challenges of MEMS product development, from the initial concept stage all the way to commercialization. The strategies and tactics presented, when practiced diligently, can shorten development timelines, help avoid common pitfalls, and improve the odds of success, especially when resources are limited. MEMS Product Development illuminates what it really takes to develop a novel MEMS product so that innovators, designers, entrepreneurs, product managers, investors, and executives may properly prepare their companies to succeed.

This book provides a comprehensive introduction to ferroics and frustrated materials. Ferroics comprise a range of materials classes with functionalities such as magnetism, polarization, and orbital degrees of freedom and strain. Frustration, due to geometrical constraints, and disorder, due to chemical and/or structural inhomogeneities, can lead to glassy behavior, which has either been directly observed or inferred in a range of materials classes from model systems such as artificial spin ice, shape memory alloys, and ferroelectrics to electronically functional materials such as manganites. Interesting and unusual properties are found to be associated with these glasses and have potential for novel applications. Just as in prototypical spin glass and structural glasses, the elements of frustration and disorder lead to non-ergodocity, history dependence, frequency dependent relaxation behavior, and the presence of inhomogeneous nano clusters or domains. In addition, there are new states of matter, such as spin ice; however, it is still an open question as to whether these systems belong to the same family or universality class. The purpose of this work is to collect in a single volume the range of materials systems with differing functionalities that show many of the common characteristics of geometrical frustration, where interacting degrees of freedom do not fit in a lattice or medium, and glassy behavior is accompanied by additional presence of disorder. The chapters are written by experts in their fields and span experiment and theory, as well as simulations. Frustrated Materials and Ferroic Glasses will be of interest to a wide range of readers in condensed matter physics and materials science.

A groundbreaking study of the development of mechanical and metal cased pencils in the nineteenth century. Illustrated with over 700 photographs, the book provides examples of the extraordinary variety of propelling pencils that were created between 1800 and 1920. Readers will be struck by the ingenuity of the inventors and creators of this (until now) forgotten form of decorative art. From metal cased pencils that are elegantly practical, to "magic" pencils that are more whimsical than functional, this book follows the progress of the mechanical pencil as it evolves from a usable tool to something more akin to jewelry. This history of mechanical pencils also includes definitions of terms, descriptions of various mechanisms, ornamentation and surface decoration, and the multitude of combinations created by nineteenth century pencil-case makers. Value ranges are also included.

For all those who are interested in horology, whether as a hobby or within the trade, this user-friendly guide is invaluable as a wealth of information for the internal workings of clocks. Eric Smith provides a fully comprehensive manual to the repair of clocks, whether modern or antique. Lucid language accompanies practical diagrams and photographs to bring clarity to what is often a highly complex task. The author recognises the curiosity which many feel about the workings of clocks. It is for this reason that the author has written a guide which does not depict horology as too complex for those outside the trade, but rather as a fascinating and accessible occupation. The ten chapters go through the practical stages of how different clocks work and the tools and materials needed. Pendulum clocks, 30-hour, 8-day and 400-day clocks, chiming, striking, and electric and alarm clocks are all covered in detail. This new revised edition includes a chapter on working with more advanced tools including the lathe. The first chapter addresses the tools and materials which are required for repair, whilst the second chapter provides an explanation of the principles of clock mechanisms. The author subsequently takes the reader through specific aspects of clocks in each chapter, from the pendulums and balance wheels to cases and hands. A chapter on electric clocks gives advice on a significant sector of the clock market. In addition, this volume includes a glossary of terms, a bibliography and a list of suppliers of materials. It is also fully indexed. The author recognises that there is much in horology which cannot be self-taught from a book, yet Clocks and Clock Repairing is both a book to stimulate interest and a handy reference guide.