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Download Stabilität und Schwingungen by Konrad Sattler PDF

By Konrad Sattler

Während im Band I die klassischen, grundlegenden Methoden der Statik ebener Stab- und Fachwerke enthalten sind, werden im Band II eine Reihe von besonderen Gebieten der Statik behandelt, deren Beherrschung für einen verantwortlich arbei­ tenden Ingenieur von Vorteil ist. Es handelt sich dabei sowohl um Verfahren zur Ermittlung von Schnittbelastungen (Bd. II A) als auch um solche zur Bestimmung ven Eigenwerten (Bd. II B), wie sie bei Stabilitätsproblemen und bei Fragen der Eigenschwingungen zur Anwendung kommen. Ein wesentlicher Teil dieses Werkes betrifft räumliche Stab- und Fachwerke. Letztere werden vorteilhaft unter Verwendung der Vektoren-, Dyaden- und Matrizen­ rechnung erfaßt. Ein kurzer Auszug der wesentlichen, aber vielfältig anwendbaren Operationen mit Vektoren, Dyaden und Matrizen bildet daher den Beginn des Werkes. Aus den Schnittbelastungen erhält der Ingenieur über die Spannungsermittlung einen Einblick über die Beanspruchungen und die Sicherheit der Konstruktionen, wobei sowohl ebene als auch räumliche Spannungszustände Berücksichtigung finden müssen. Die Aussagen über Anstrengungshypothesen weisen jedoch einen wesentlich größeren Streubereich auf, als die Ermittlung der Schnittbelastungen, die genauer er­ faßt werden können. Ein eigenes zusammenfassendes Kapitel gibt sowohl Einblick in die Berechnung ebener und räumlicher Spannungszustände aus den Schnittbelastun­ gen, als auch eine Gegenüberstellung der verschiedenen Anstrengungshypothesen, damit der Ingenieur sich selbst ein Urteil über die vielen damit verbundenen schwie­ rigen Probleme bilden kann. Die Torsion und die sich daraus ergebenden Spannungen werden - wegen ihrer besonderen Bedeutung - in einem eigenen Kapitel behandelt.

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Download Geek Mom: Projects, Tips, and Adventures for Moms and Their by Corrina Lawson, Jenny Williams, Natania Barron, Kathy Ceceri PDF

By Corrina Lawson, Jenny Williams, Natania Barron, Kathy Ceceri

It’s speedy changing into a geek international in the market, and all mothers have to sing their own praises their tech smarts and superhero-like talents as a way to preserve their savvy childrens entertained and engaged. Geek mother: initiatives, guidance, and Adventures for mothers and Their 21st-Century Families explores the numerous enjoyable and fascinating ways in which digital-age mom and dad and youngsters can get their geek on jointly. inventive principles for every age and budgets contain thrifty Halloween costumes, home made lava lamps, hobbit feasts, and magical role-playing video games. There are even tasks for mothers to aim once they have a number of necessary moments by myself. With six sections spanning every thing from home-science experiments to superheroes, this finished instruction manual from the editors of Wired.com’s well known GeekMom blog is full of principles bound to motivate a love of studying and discovery. alongside the way in which, mom and dad also will locate very important pointers on subject matters akin to making a choice on secure on-line groups for kids, organizing a house studying middle, and inspiring women to like technology.

Being geeky is all approximately exploring the realm with never-ending interest. Geek mother is your invitation to introducing an identical experience of ask yourself and mind's eye to the subsequent new release.

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Download Peer-to-Peer : Harnessing the Power of Disruptive PDF

The time period "peer-to-peer" has end up utilized to networks that count on finish clients to give a contribution their very own documents, computing time, or different assets to a few shared undertaking. much more attention-grabbing than the systems' technical underpinnings are their socially disruptive capability: in a variety of methods they go back content material, selection, and keep watch over to usual users.While this booklet is generally in regards to the technical promise of peer-to-peer, we additionally discuss its intriguing social promise. groups were forming on the net for a very long time, yet they've been constrained through the flat interactive characteristics of e mail and community newsgroups. humans can trade thoughts and ideas over those media, yet have nice hassle commenting on every one other's postings, structuring info, appearing searches, or developing summaries. If instruments supplied how one can arrange details intelligently, and if all people might serve up his or her personal info and retrieve others' info, the chances for collaboration could take off. Peer-to-peer applied sciences in addition to metadata may improve nearly any workforce of people that proportion an interest--technical, cultural, political, scientific, you identify it.This booklet offers the ambitions that force the builders of the best-known peer-to-peer platforms, the issues they've confronted, and the technical strategies they've came upon. study the following the necessities of peer-to-peer from leaders of the field:Nelson Minar and Marc Hedlund of target="new">Popular Power, on a historical past of peer-to-peerClay Shirky of acceleratorgroup, on the place peer-to-peer is probably going to be headedTim O'Reilly of O'Reilly & Associates, on redefining the public's perceptionsDan Bricklin, cocreator of Visicalc, on harvesting info from end-usersDavid Anderson of [email protected], on how [email protected] created the world's greatest computerJeremie Miller of Jabber, on the net as a set of conversationsGene Kan of Gnutella and GoneSilent.com, on classes from Gnutella for peer-to-peer technologiesAdam Langley of Freenet, on Freenet's current and upcoming architectureAlan Brown of purple Rover, on a intentionally low-tech content material distribution systemMarc Waldman, Lorrie Cranor, and Avi Rubin of AT&T Labs, at the Publius undertaking and belief in disbursed systemsRoger Dingledine, Michael J. Freedman, andDavid Molnar of Free Haven, on source allocation and responsibility in allotted systemsRael Dornfest of O'Reilly Network and Dan Brickley of ILRT/RDF net, on metadataTheodore Hong of Freenet, on performanceRichard Lethin of Reputation Technologies, on how acceptance might be equipped onlineJon Udell ofBYTE and Nimisha Asthagiri andWalter Tuvell of Groove Networks, on securityBrandon Wiley of Freenet, on gateways among peer-to-peer systems
You'll locate details at the most modern and maximum platforms in addition to upcoming efforts during this ebook.

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Download ASM Handbook, Volume 15, Casting (2008) by Srinath Viswanathan, Editorial Chair, Diran Apelian, PDF

By Srinath Viswanathan, Editorial Chair, Diran Apelian, Rathindra DasGupta, Michael Gywn, John L. Jorstad, Raymond W. Monroe, Thomas E. Prucha, Mahi Sahoo, Edward S. Szekeres, Daniel Twarog, Viswanathan S

This newly revised guide on glossy casting applied sciences is a finished reference when you specify, manufacture, layout, or evaluation solid steel parts. This broad-based choice of utilized casting wisdom offers a important source for scholar, educators, training engineers, and technical aid employees. The large scope of this reference covers either the goods and strategies of casting. From guidance at the buy of castings, to the engineering calls for of strength potency, productiveness, and product functionality, quantity 15 presents very vast assurance at the rules, practices, and purposes of metalcasting. Molten steel processing, solidification habit, modeling, molding, foundry perform, and casting houses are coated intimately. the fundamental steps and gear linked are defined for casting techniques, besides their merits, boundaries, and purposes.

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Download Functional polymers in food science : from technology to by Giuseppe Cirillo, Umile Gianfranco Spizzirri, Francesca PDF

By Giuseppe Cirillo, Umile Gianfranco Spizzirri, Francesca Iemma

Polymers are a massive half in lifestyle; items made up of polymers variety from subtle articles, equivalent to biomaterials, to aerospace fabrics. one of many purposes for the nice acceptance exhibited by way of polymers is their ease of processing. Polymer houses may be adapted to fulfill particular wishes by way of various the “atomic composition” of the repeat constitution, through various molecular weight and through the incorporation (via covalent and non-covalent interactions) of an important variety of compounds to impart particular activities.

In foodstuff technology, using polymeric fabrics is greatly explored, from either an engineering and a nutraceutical viewpoint. in regards to the engineering software, researchers have came upon the main appropriate fabrics for clever packaging which preserves the foodstuff caliber and prolongs the shelf-life of the goods. additionally, in agriculture, particular functionalized polymers are used to extend the potency of remedies and decrease the environmental toxins. within the nutraceutical box, simply because shoppers are more and more aware of the connection among vitamin and future health, the intake of top of the range meals has been starting to be regularly. diverse compounds (e.g. prime quality proteins, lipids and polysaccharides) are renowned to give a contribution to the enhancement of human healthiness via diverse mechanisms, decreasing the danger of heart problems, coronary ailment, and hypertension.

This moment quantity focuses on the value of polymers and useful foodstuff and in foodstuff processing.

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Download TRW: pioneering technology and innovation since 1900 by Davis Dyer PDF

By Davis Dyer

Well known as the best run high-tech businesses on the earth, TRW has assisted in shaping the foremost industries of at the present time: car, aerospace, and knowledge expertise. during this revealing account of the firm's pioneering function in long-range making plans, large-scale venture administration, structures engineering, organizational improvement, and innovative human family guidelines, TRW emerges as a innovative and well-positioned participant within the American business panorama. The heritage of TRW's quick progress, vast diversification, and next restructuring round center companies offers beneficial insights into the evolution of the method, constitution, and administration within the smooth company period.

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Download Our Robots, Ourselves: Robotics and the Myths of Autonomy by David A. Mindell PDF

By David A. Mindell

"[An] crucial book... it truly is required analyzing as we heavily have interaction probably the most very important debates of our time."—Sherry Turkle, writer of Reclaiming dialog: the ability of speak in a electronic Age
From drones to Mars rovers—an exploration of the main cutting edge use of robots this present day and a provocative argument for the the most important function of people in our more and more technological future.

In Our Robots, Ourselves, David Mindell bargains a desirable behind-the-scenes examine the leading edge of robotics this present day, debunking generally held myths and exploring the swiftly altering relationships among people and machines.

Drawing on firsthand adventure, broad interviews, and the most recent learn from MIT and somewhere else, Mindell takes us to severe environments—high surroundings, deep ocean, and outer space—to show the place the main complex robotics exist already. In those environments, scientists use robots to find new information regarding old civilizations, to map a few of the world's greatest geological good points, or even to "commute" to Mars to behavior day-by-day experiments. yet those instruments of air, sea, and area additionally forecast the risks, moral quandaries, and unintentional results of a destiny within which robotics and automation suffuse our daily lives.

Mindell argues that the stark strains we've drawn among human and never human, guide and automatic, aren't invaluable for realizing our courting with robotics. Brilliantly researched and accessibly written, Our Robots, Ourselves clarifies misconceptions in regards to the self sufficient robotic, delivering as an alternative a hopeful message approximately what he calls "rich human presence" on the middle of the technological panorama we're now developing.
From the Hardcover edition.

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