Nature's Flyers

Nature's Flyers PDF

Author: David E. Alexander

Publisher: JHU Press

Published: 2004-11-17

Total Pages: 390

ISBN-13: 9780801880599

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'Nature's Flyers' is a detailed account of the current scientific understanding of the primary aspects of flight in nature. The author explains the physical basis of flight, drawing upon bats, birds, insects, pterosaurs and even winged seeds.

Nature's Machines

Nature's Machines PDF

Author: David E. Alexander

Publisher: Academic Press

Published: 2017-08-15

Total Pages: 202

ISBN-13: 0128498978

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Nature’s Machines: An Introduction to Organismal Biomechanics presents the fundamental principles of biomechanics in a concise, accessible way while maintaining necessary rigor. It covers the central principles of whole-organism biomechanics as they apply across the animal and plant kingdoms, featuring brief, tightly-focused coverage that does for biologists what H. M. Frost’s 1967 Introduction to Biomechanics did for physicians. Frequently encountered, basic concepts such as stress and strain, Young’s modulus, force coefficients, viscosity, and Reynolds number are introduced in early chapters in a self-contained format, making them quickly available for learning and as a refresher. More sophisticated, integrative concepts such as viscoelasticity or properties of hydrostats are covered in the later chapters, where they draw on information from multiple earlier sections of the book. Animal and plant biomechanics is now a common research area widely acknowledged by organismal biologists to have broad relevance. Most of the day-to-day activities of an animal involve mechanical processes, and to the extent that organisms are shaped by adaptive evolution, many of those adaptations are constrained and channelized by mechanical properties. The similarity in body shape of a porpoise and a tuna is no coincidence. Many may feel that they have an intuitive understanding of many of the mechanical processes that affect animals and plants, but careful biomechanical analyses often yield counterintuitive results: soft, squishy kelp may be better at withstanding pounding waves during storms than hard-shelled mollusks; really small swimmers might benefit from being spherical rather than streamlined; our bones can operate without breaking for decades, whereas steel surgical implants exhibit fatigue failures in a few months if not fully supported by bone. Offers organismal biologists and biologists in other areas a background in biomechanics to better understand the research literature and to explore the possibility of using biomechanics approaches in their own work Provides an introductory presentation of the everyday mechanical challenges faced by animals and plants Functions as recommended or required reading for advanced undergraduate biology majors taking courses in biomechanics, supplemental reading in a general organismal biology course, or background reading for a biomechanics seminar course

Freedom Flyers

Freedom Flyers PDF

Author: J. Todd Moye

Publisher: Oxford University Press

Published: 2012-02-16

Total Pages: 261

ISBN-13: 0199896550

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Chronicles America's first African American military pilots, who fought againt two enemies, the Axis powers of World War II and Jim Crow racism in the United States.

Biomimetics

Biomimetics PDF

Author: Yoseph Bar-Cohen

Publisher: CRC Press

Published: 2016-04-19

Total Pages: 790

ISBN-13: 1040056423

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Mimicking nature - from science fiction to engineering realityHumans have always looked to nature's inventions as a source of inspiration. The observation of flying birds and insects leads to innovations in aeronautics. Collision avoidance sensors mimic the whiskers of rodents. Optimization algorithms are based on survival of the fittest, the seed-

On the Wing

On the Wing PDF

Author: Dr. David E. Alexander

Publisher: Oxford University Press, USA

Published: 2015

Total Pages: 225

ISBN-13: 0199996776

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"On the Wing is the first book to take a comprehensive look at the evolution of flight in all four groups of powered flyers: insects, pterosaurs, birds, and bats."--Book jacket.

Recent Advances in Materials, Mechanics and Management

Recent Advances in Materials, Mechanics and Management PDF

Author: Sheela Evangeline

Publisher: CRC Press

Published: 2019-05-14

Total Pages: 542

ISBN-13: 1351227521

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These proceedings present a selection of papers presented at the 3rd International Conference on Materials Mechanics and Management 2017 (IMMM 2017), which was jointly organized by the Departments of Civil Engineering, Mechanical Engineering and Architecture of College of Engineering Trivandrum. Developments in the fields of materials, mechanics and management have paved the way for overall improvements in all aspects of human life. The quest for meeting the requirements of the rapidly increasing population has led to revolutionary construction and production technologies aiming at optimum management and use of natural resources. The objective of this conference was to bring together experts from academic institutions, industries, research organizations and professionals for sharing of knowledge, expertise and experience in the emerging trends related to Civil Engineering, Mechanical Engineering and Architecture. IMMM 2017 provided opportunities for young researchers to actively engage in research discussions, new research interests, research ethics and professional development.

Arthropod Biology and Evolution

Arthropod Biology and Evolution PDF

Author: Alessandro Minelli

Publisher: Springer Science & Business Media

Published: 2013-04-11

Total Pages: 530

ISBN-13: 3642361609

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More than two thirds of all living organisms described to date belong to the phylum Arthropoda. But their diversity, as measured in terms of species number, is also accompanied by an amazing disparity in terms of body form, developmental processes, and adaptations to every inhabitable place on Earth, from the deepest marine abysses to the earth surface and the air. The Arthropoda also include one of the most fashionable and extensively studied of all model organisms, the fruit-fly, whose name is not only linked forever to Mendelian and population genetics, but has more recently come back to centre stage as one of the most important and more extensively investigated models in developmental genetics. This approach has completely changed our appreciation of some of the most characteristic traits of arthropods as are the origin and evolution of segments, their regional and individual specialization, and the origin and evolution of the appendages. At approximately the same time as developmental genetics was eventually turning into the major agent in the birth of evolutionary developmental biology (evo-devo), molecular phylogenetics was challenging the traditional views on arthropod phylogeny, including the relationships among the four major groups: insects, crustaceans, myriapods, and chelicerates. In the meantime, palaeontology was revealing an amazing number of extinct forms that on the one side have contributed to a radical revisitation of arthropod phylogeny, but on the other have provided evidence of a previously unexpected disparity of arthropod and arthropod-like forms that often challenge a clear-cut delimitation of the phylum.