- Table View
- List View
Friction and Wear
by Giovanni StraffeliniThis book introduces the basic concepts of contact mechanics, friction, lubrication, and wear mechanisms, providing simplified analytical relationships that are useful for quantitative assessments. Subsequently, an overview on the main wear processes is provided, and guidelines on the most suitable design solutions for each specific application are outlined. The final part of the text is devoted to a description of the main materials and surface treatments specifically developed for tribological applications and to the presentation of tribological systems of particular engineering relevance. The text is up to date with the latest developments in the field of tribology and provides a theoretical framework to explain friction and wear problems, together with practical tools for their resolution. The text is intended for students on Engineering courses (both bachelor and master degrees) who must develop a sound understanding of friction, wear, lubrication, and surface engineering, and for technicians or professionals who need to solve tribological problems in their work.
Friction and Wear in Metals (Materials Horizons: From Nature to Nanomaterials)
by Yarub Al-Douri Riyadh A. Al-SamaraiThis book focuses on tribology in manufacturing processes from the viewpoint of sliding friction fundamentals, the use of lubricants to control friction processes such as machining, drawing, rolling, extrusion, abrasive processes, and processing at micro and nanoscales. To study tribological behavior, it is essential to know the methods of measuring and describing the surface shape and roughness. The friction and wear, their corresponding coefficients, and their main mechanisms are described, including stick-slip effects, adhesion, and plowing. Adhesive, abrasive, erosive, and erosion-corrosion wear mechanisms. Friction–wear relationships are elaborated, and wear maps are presented. Surface interactions depend on the contacting materials and surface shape. It is a function of the production process and nature of parent materials that are found to be rough, where roughness is characterized by asperities of varying amplitudes and spacing. Surface interactions are dependent both on thecontacting materials and the shape of the surface. The distribution of the asperities is directional when the finishing process is direction-dependent, such as turning, milling, etc., and homogeneous for a non-directional finishing process like lapping, electro-polishing.
Friction and Wear of Ceramics (Materials Engineering)
by Said JahanmirProvides comprehensive information on the tribological aspects of advanced ceramic materials for all uses that require controlled friction and wear resistance. The text is a guide to altering the microstructure of ceramics to create optimum performance in sliding and rolling contact applications.
Friction and Wear of Ceramics: Principles and Case Studies
by Bikramjit Basu Mitjan Kalin B. V. KumarThis book covers the area of tribology broadly, providing important introductory chapters to fundamentals, processing, and applications of tribology. The book is designed primarily for easy and cohesive understanding for students and practicing scientists pursuing the area of tribology with focus on materials. This book helps students and practicing scientists alike understand that a comprehensive knowledge about the friction and wear properties of advanced materials is essential to further design and development of new materials. The description of the wear micromechanisms of various materials will provide a strong background to the readers as how to design and develop new tribological materials. This book also places importance on the development of new ceramic composites in the context of tribological applications. Some of the key features of the book include: Fundamentals section highlights the salient issues of ceramic processing and mechanical properties of important oxide and non-oxide ceramic systems; State of the art research findings on important ceramic composites are included and an understanding on the behavior of silicon carbide (SiC) based ceramic composites in dry sliding wear conditions is presented as a case study; Erosion wear behavior of ceramics, in which case studies on high temperature erosion behavior of SiC based composites and zirconium diboride (ZrB2) based composites is also covered; Wear behavior of ceramic coatings is rarely discussed in any tribology related books therefore a case study explaining the abrasion wear behavior of WC-Co coating is provided. Finally an appendix chapter is included in which a collection of several types of questions including multiple choice, short answer and long answer are provided.
Friction and the Hot Rolling of Steel
by Vladimir PanjkovicThis text offers a systematic presentation of the evolution of concepts of friction, and its fundamental causes. It introduces key factors influencing friction in engineering systems. Applying these concepts, experimental observations and phenomena in various processes, readers understand the key frictional phenomena in the large-scale, commercial process of hot steel rolling. The usefulness of the book is not limited to hot rolling. It also provides an understanding of frictional phenomena in other important industrial sectors, such as automotive industry, railway transport, metal cutting and forming.
Friction at the Atomic Level: Atomistic Approaches in Tribology
by Motohisa HiranoWritten by one of the most distinguished scientists and a pioneer in this field, this monograph represents a stand-alone, concise guide to friction at the atomic level. It brings together hitherto widely-scattered information in one single source, and is the first to explain the nature of friction in terms of atomic mechanisms. In addition to his detailed description on modeling and simulation, the author stresses stresses experimental approaches like AFM techniques for verification. In this respect the book will benefit the whole nanotribology community, from graduate students who want to get the basics right up to researchers specializing in mechanical engineering, materials science, physics and chemistry.
Friction, Wear, Lubrication: A Textbook in Tribology, Second Edition
by Layo Ajayi Kenneth LudemaThe second edition of a bestseller, this book introduces tribology in a way that builds students’ knowledge and understanding. It includes expanded information on topics such as surface characterization as well as recent advances in the field. The book provides additional descriptions of common testing methods, including diagrams and surface texturing for enhanced lubrication, and more information on rolling element bearings. It also explores surface profile characterization and elastic plastic contact mechanics including wavy surface contact, rough surface contact models, friction and wear plowing models, and thermodynamic analysis of friction.
Friction, Wear, and Erosion Atlas
by Kenneth G. BudinskiFriction, wear, and erosion are major issues in mechanical engineering and materials science, resulting in major costs to businesses operating in the automotive, biomedical, petroleum/oil/gas, and structural engineering industries. The good news is, by understanding what friction, wear, or erosion mode predominates in a mechanism or device, you can
Friction-Induced Vibration in Lead Screw Drives
by Farid Golnaraghi Orang Vahid-AraghiFriction-Induced Vibration in Lead Screw Drives covers the dynamics of lead screw drives with an emphasis on the role of friction. Friction-induced vibration in lead screws can be the cause of unacceptably high levels of audible noise as well as loss of operation accuracy and shortened life. Although lead screw drives have a long history and their mechanical design and manufacturing aspects are very well understood, the role of friction in their dynamical behavior has not been comprehensively treated. The book draws on the vast body of work on the subject of dynamical systems with friction (such as disk brake systems) and offers said treatment, along with: · Unique coverage of modeling of multi-DOF lead screw systems with friction · Detailed analysis of negative damping, mode coupling, and kinematic constraint instability mechanisms in lead screws drives · A practical parameter identification approach for the velocity dependent coefficient of friction in lead screw drives Friction-Induced Vibration in Lead Screw Drives serves as the definitive text on the friction-induced vibration of lead screws, and includes a practical case study where the developed methods are used to study the excessive noise problem of a lead screw drive system and to put forward design modifications that eliminate the friction-induced vibrations.
Friction-Induced Vibrations and Self-Organization: Mechanics and Non-Equilibrium Thermodynamics of Sliding Contact
by Michael Nosonovsky Vahid MortazaviMany scientists and engineers do not realize that, under certain conditions, friction can lead to the formation of new structures at the interface, including in situ tribofilms and various patterns. In turn, these structures-usually formed by destabilization of the stationary sliding regime-can lead to the reduction of friction and wear. Friction-I
Fridge and Oven's Big Job (The Big Jobs Books)
by Steven Weinberg*FEATURED ON THE TODAY SHOW AS A "GREAT GIFT FOR THE HOLIDAYS"**Don't miss out on the other Big Jobs books - Washer and Dryer's Big Job and Dishwasher's Big Job!*Filled with fun facts, giggles galore, and googly eyes, the Big Jobs board books are the perfect introduction for babies and toddlers to the big world around them, starting at home!With vibrant artwork and clever humor, this original board book series is a celebration of childhood curiosity and the most captivating topic of all--household appliances! In Fridge & Oven's Big Job, follow along as these amazing appliances show us how delicious cookies get made.From keeping the ingredients nice and cold to carefully baking the dough until the treats are hot and ready, Fridge and Oven have a big job to do—but so do you! Learn how it’s all done in this rollicking read-aloud that will delight parents and kids alike.
Friend Me
by Sheila M. AverbuchAn Amazon Best Book of the MonthWhat happens when an online friend becomes a real-life nightmare?Roisin hasn't made a single friend since moving from Ireland to Massachusetts. In fact, she is falling apart under constant abuse from a school bully, Zara. Zara torments Roisin in person and on social media. She makes Roisin the laughingstock of the whole school.Roisin feels utterly alone... until she bonds with Haley online. Finally there's someone who gets her. Haley is smart, strong, and shares anti-mean-girl memes that make Roisin laugh. Together, they are able to imagine what life could look like without Zara. Haley quickly becomes Roisin's lifeline.Then Zara has a painful accident, police investigate, and Roisin panics. Could her chats with Haley look incriminating?Roisin wants Haley to delete her copies of their messages, but when she tries to meet Haley in person, she can't find her anywhere. What's going on? Her best friend would never have lied to her, right? Or is Haley not who she says she is...With twists, turns, and lightning-fast pacing, this is a middle-grade thriller about bullying, revenge, and tech that young readers won't be able to put down.
Friend Request: The most addictive psychological thriller you'll read this year
by Laura Marshall***THE TOP TEN EBOOK BESTSELLER***'Twisty and gripping' Erin Kelly'I read it in one go' Marian Keyes'I loved it' Rachel Abbott Maria wants to be friends. But Maria is dead . . . isn't she?When Louise Williams receives a message from someone left long in the past, her heart nearly stops.Maria Weston wants to be friends on Facebook.Maria Weston has been missing for over twenty-five years. She was last seen the night of a school leavers' party, and the world believes her to be dead. Particularly Louise, who has lived her adult life with a terrible secret. As Maria's messages start to escalate, Louise forces herself to reconnect with the old friends she once tried so hard to impress. Trying to piece together exactly what happened that night, she soon discovers there's much she didn't know. The only certainty is that Maria Weston disappeared that night, never to be heard from again - until now. . .THE ADDICTIVE PSYCHOLOGICAL THRILLER THAT EVERYONE'S RAVING ABOUT - perfect for fans of He Said/She Said, The Couple Next Door and I See You.
Friend Request: The most addictive psychological thriller you'll read this year
by Laura Marshall***THE SUNDAY TIMES & NO.1 EBOOK BESTSELLER***'Twisty and gripping' Erin Kelly'I read it in one go' Marian Keyes'I loved it' Rachel Abbott Don't miss Laura Marshall's addictive new thriller, MY HUSBAND'S KILLER. Available now!*****Maria Weston wants to be friends with me Maybe that had been the problem all along: Maria Weston had wanted to be friends with me, but I let her down.She's been hovering at the edge of my consciousness for all of my adult life, although I've been good at keeping her out, just a blurred shadow in the corner of my eye, almost but not quite out of sight.Maria Weston wants to be friends. But Maria Weston has been dead for more than twenty-five years. *****THE ADDICTIVE PSYCHOLOGICAL THRILLER THAT EVERYONE'S RAVING ABOUT 'The twist is genuinely unexpected . . . This is an obvious choice if you enjoyed The Girl on the Train' Independent'I couldn't put it down!' Jenny Blackhurst, author of The Foster Child'A mystery with a genius premise' Stylist'A devour-in-one-sitting must' Heat'Tightly plotted, and with a fabulous twist' Sunday Mirror'Gripping . . . loved it from start to finish' Goodreads Reviewer'Twisty and gripping . . . You must read this!' Emma Kavanagh, author of Falling'Twists and turns and real life scenarios make this a fantastic thriller' Amazon Reviewer
Friendly Interfaces Between Humans and Machines
by Sunil Kumar Kopparapu P. V. RaoThis book discusses human–machine interactions, specifically focusing on making them as natural as human–human interaction. It is based on the premise that to get the right connect between human and machines, it is essential to understand not only the behavior of the person interacting with the machine, but also the limitations of the technology. Firstly, the authors review the evolution of language as a spontaneous, natural phenomenon in the overall scheme of the evolutionary development of living beings. They then go on to examine the possible approaches to understanding and representing the meaning and the common aspects of human–human and human–machine interactions, and introduce the keyconcept-keyword (also called minimal parsing) approach as a convenient and realistic way to implement usable human–machine interface (HMI) systems. For researchers looking for practical approaches, way beyond the realms of theory, this book is a must read.
Friendroid
by M. M. VaughanStranger Things meets robots in this sweet story about an unlikely friendship between two boys—one human, one android. <P><P>Eric Young is an android, but he doesn’t know. He does know that he’s just moved to Ashland, so it’s important to make the right kind of friends—the kind that would be interested in skateboarding and the new Slick sneakers his Uncle Martin sends him. Danny Lazio doesn’t have any friends, but he doesn’t care. <P><P>Even if his classmates don’t accept him, he still has Land X, the online role play game that he’s actually really good at. But then Eric takes an interest in Land X, and suddenly Danny thinks he might have found a real friend…if he can figure out the mystery behind Eric’s sudden disappearances and strange lifestyle. It becomes harder to ignore the weird events that happen only around Eric. <P><P>But uncovering the secret behind Eric’s identity is an act that might cost them both as powerful forces soon move in around them. This heartfelt story about friendship and what it means to be human is sure to tug at your soul—or your soul-chip if you’re like Eric.
Friends Like These: A gripping psychological thriller with a shocking twist
by Sarah AldersonAs addictive as THE SILENT PATIENT, as gripping as THE GIRL BEFORE.One wrong click can ruin your life...Lizzie hasn't thought about her colleague Becca in years - not since the accident. Then Becca's ex-boyfriend turns up on Tinder, and Lizzie's curiosity is sparked. It looks like Becca hasn't changed. She's still all over social media: #perfectlife, #perfectjob, #blessed. Lizzie can't resist a dig. But she sends her mean comment to Becca by mistake...She's about to find out you can't always believe what you see online. And that with friends like Becca, you don't need enemies... A gripping read with a twist you won't see coming - the perfect thriller for the digital age.Readers love FRIENDS LIKE THESE'FABULOUS. Best psychological thriller I've read.''Absolutely loved every second of it and didn't want it to end.''Can't wait for her next book. Just blown away.''This was the best book I have read all year. Absolutely amazing. It kept me up ALL night because I just couldn't put it down.''More than a 5 star, completely original, scary, tense, thrilling, and chilling. Loved, loved, loved, loved.'
Friends Like These: A gripping psychological thriller with a shocking twist
by Sarah AldersonAs addictive as FRIEND REQUEST, as gripping as THE GIRL BEFORE.Lizzie hasn't thought much about Becca since the accident.She remembers the blood though. She can see how you wouldn't be the same again after something like that. No one was surprised when Becca didn't come back to work.And Lizzie's different these days too. She used to be the one in the shadows, stalking Becca's perfect life online, but a lot has changed since then.So when Becca's ex shows up on Tinder, Lizzie swipes right. Why not? Doesn't she deserve a chance at happiness as well?Becca will have moved on. There's no way she'd even remember Lizzie, no way she could know anything about her life - is there? She's about to find out that with a friend like Becca, she doesn't need enemies...
Friends Like These: A gripping psychological thriller with a shocking twist
by Sarah AldersonA gripping thriller about fake friendships and the truth that lies behind the Facebook page, for fans of The Girlfriend and Friend Request.We all know someone like Becca. She has the job everyone wants, a designer wardrobe, a hot-shot lawyer boyfriend, holidays to exotic locations. And she flaunts her perfect life all over social media. It drove her colleague Lizzie mad, but she couldn't stop looking. They were never really friends - and yet Lizzie knew everything about her. Or did she? When chance, and a terrible mistake, pulls Lizzie back into Becca's orbit years after they lost touch, she'll realise that you can't always believe what you see online... and that finding out the truth might be the worst thing you can do. There's no such thing as a perfect life. Only a perfect lie.(P)2018 Hodder & Stoughton Limited
Friends, Followers and the Future
by Rory O'Connor"Rory O'Connor is one of the smartest media guys around. He knows who's spinning, who's pandering, and who's putting money in his own pocket at the expense of logic, reason, and the public good."-Michael Wolff, Vanity Fair media criticThere's a revolution going on, as ever-accelerating developments in digital information technologies change nearly every aspect of how we live, work, play, do business, and engage in politics. Share and share alike-the numbers say it all as billions of people worldwide flock to online media and use social networks to discover and spread news and information.In the process, ever-growing networks of "ordinary people" are using these powerful new tools to trim the influence long held by Big Business, Big Government, and Big Media. No longer just passive recipients, participants in social networks now regularly make and break news while organizing civic and political actions that bypass censors, outpace traditional media, attract massive audiences, and influence the rise and fall of brands, industries, politicians, and even governments.In this insider's look at how social media are transforming our world, Rory O'Connor explains the trends and explores what tech visionaries, media makers, political advisers, and businesspeople are saying about the meteoric rise of the various social networks of friends and followers, and what they bode for our future.Rory O'Connor, co-founder of MediaChannel.org, is the author of Shock Jocks: Hate Speech & Talk Radio. He has won two Emmys and a George Orwell Award, among many other honors.
Friendship 7
by Colin BurgessIn this spellbinding account of an historic but troubled orbital mission, noted space historian Colin Burgess takes us back to an electrifying time in American history, when intrepid pioneers were launched atop notoriously unreliable rockets at the very dawn of human space exploration. A nation proudly and collectively came to a standstill on the day this mission flew; a day that will be forever enshrined in American spaceflight history. On the morning of February 20, 1962, following months of frustrating delays, a Marine Corps war hero and test pilot named John Glenn finally blazed a path into orbit aboard a compact capsule named Friendship 7. The book's tension-filled narrative faithfully unfolds through contemporary reports and the personal recollections of astronaut John Glenn, along with those closest to the Friendship 7 story, revealing previously unknown facts behind one of America's most ambitious and memorable pioneering space missions. Friendship 7. The book's tension-filled narrative faithfully unfolds through contemporary reports and the personal recollections of astronaut John Glenn, along with those closest to the Friendship 7 story, revealing previously unknown facts behind one of America's most ambitious and memorable pioneering space missions. Friendship 7 story, revealing previously unknown facts behind one of America's most ambitious and memorable pioneering space missions.
Friendship, Robots, and Social Media: False Friends and Second Selves (Routledge Research in Applied Ethics)
by Alexis M. ElderVarious emerging technologies, from social robotics to social media, appeal to our desire for social interactions, while avoiding some of the risks and costs of face-to-face human interaction. But can they offer us real friendship? In this book, Alexis Elder outlines a theory of friendship drawing on Aristotle and contemporary work on social ontology, and then uses it to evaluate the real value of social robotics and emerging social technologies. In the first part of the book Elder develops a robust and rigorous ontology of friendship: what it is, how it functions, what harms it, and how it relates to familiar ethical and philosophical questions about character, value, and well-being. In Part II she applies this ontology to emerging trends in social robotics and human-robot interaction, including robotic companions for lonely seniors, therapeutic robots used to teach social skills to children on the autism spectrum, and companionate robots currently being developed for consumer markets. Elder articulates the moral hazards presented by these robots, while at the same time acknowledging their real and measurable benefits. In the final section she shifts her focus to connections between real people, especially those enabled by social media. Arguing against critics who have charged that these new communication technologies are weakening our social connections, Elder explores ways in which text messaging, video chats, Facebook, and Snapchat are enabling us to develop, sustain, and enrich our friendship in new and meaningful ways.
Fringe Pattern Analysis for Optical Metrology
by Moises Padilla Manuel Servin J. Antonio QuirogaThe main objective of this book is to present the basic theoretical principles and practical applications for the classical interferometric techniques and the most advanced methods in the field of modern fringe pattern analysis applied to optical metrology. A major novelty of this work is the presentation of a unified theoretical framework based on the Fourier description of phase shifting interferometry using the Frequency Transfer Function (FTF) along with the theory of Stochastic Process for the straightforward analysis and synthesis of phase shifting algorithms with desired properties such as spectral response, detuning and signal-to-noise robustness, harmonic rejection, etc.
Froggy Builds a Tree House
by Jonathan LondonFroggy and his friends are building a treehouse-with a lot of help from Dad. Their plans don't include Frogilina though. "Boys Only!" says Froggy. But in the end, it's Frogilina who saves the day and joins the treehouse gang. Lovable Froggy returns in his 22nd laugh-out-loud adventure.
From 'Science in the Making' to Understanding the Nature of Science: An Overview for Science Educators
by Mansoor NiazThe Nature of Science is highly topical among science teacher educators and researchers. Increasingly, it is a mandated topic in state curriculum documents. This book draws together recent research on Nature of Science studies within a historical and philosophical framework suitable for students and teacher educators. Traditional science curricula and textbooks present science as a finished product. Taking a different approach, this book provides a glimpse of “science in the making” — scientific practice imbued with arguments, controversies, and competition among rival theories and explanations. Teaching about “science in the making” is a rich source of motivating students to engage creatively with the science curriculum.Readers are introduced to “science in the making” through discussion and analysis of a wide range of historical episodes from the early 19th century to early 21st century. Recent cutting-edge research is presented to provide insight into the dynamics of scientific progress. More than 90 studies from major science education journals, related to nature of science are reviewed. A theoretical framework, field tested with in-service science teachers, is developed for moving from ‘science in the making’ to understanding the Nature of Science.