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Author:
Publisher:
ISBN:
Category : Planets
Languages : en
Pages : 452
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Book Description
Author: Ashutosh Mokate
Publisher: Anchor Academic Publishing
ISBN: 3960670184
Category : Technology & Engineering
Languages : en
Pages : 117
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Book Description
Gears are essential parts of many precision power transmitting machines such as automobiles. The major functions of a gearbox are to transform speed and torque in a given ratio and to change the axis of rotation. Planetary gears yield several advantages over conventional parallel shaft gear systems: They produce high speed reductions in compact spaces, a greater load sharing, a higher torque to weight ratio, diminished bearing loads, and reduced noise and vibration. They are used in automobiles, helicopters, aircraft engines, heavy machinery, and a variety of other applications. Despite their advantages, the noise induced by the vibration of planetary gear systems remains a key concern. Planetary gears have received considerably less research attention than single mesh gear pairs. There is a particular scarcity of analysis of two planetary gear systems and their dynamic response. Hence, this book focuses on the study of two PGTs with different phasing (angular positions) while every individual set remains unchanged.
Author:
Publisher:
ISBN:
Category : Planets
Languages : en
Pages : 452
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Book Description
Author: Erín Moure
Publisher: Wesleyan University Press
ISBN: 0819576964
Category : Poetry
Languages : en
Pages : 210
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Book Description
Planetary Noise: Selected Poetry of Erín Moure gathers four decades of poetry from a celebrated Canadian poet and translator who has persistently reconfigured the linguistic and material relations of English. Moure's poems and networked sequences are hybrid and often polylingual; they work with contradiction, paradox, and verbal detritus— linguistic hics and blips often too quickly dismissed as noise—to create new conditions for thought and pleasure. From postdramatic theatre to queer and feminist theory, from the politics of citizenship and genocide to the minutiae of digital poetics, from the clamor of love to the shadows of grief and memory, Moure has joyously toppled hierarchies of meaning and parasited dominant discourses to create poetry that crosses borders, embracing hope, not war. This volume, edited by poet and literary scholar Shannon Maguire, also features an extensive introduction to Moure's poetry, a section of poetry by others translated by Moure, and an afterword on translation by the poet. An online reader's companion is available at wesleyan.edu/wespress/readerscompanions. Hardcover is un-jacketed.
Author: S.F. Green
Publisher: Elsevier
ISBN: 0080530567
Category : Science
Languages : en
Pages : 427
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Book Description
Since the last joint IAU and COSPAR Colloquium in Gainesville in 1995, there have been dramatic changes in the field resulting from in-situ space experiments, Earth orbiting satellites and ground based observations. The brightest comet since the early years of the twentieth century, comet Hale-Bopp, appeared, giving an invaluable opportunity to see in action one great source of interplanetary dust. Similarly, the Leonid meteor shower has been at its most active since 1966, producing spectacular displays of meteors and allowing for an array of observational techniques, not available in 1966 to be used, while theory has also been refined to a level where very accurate predictions of the timing of meteor storms has become possible. Prior to the meeting a total eclipse of the Sun in South West England and North Europe was observed, traditionally a good opportunity to observe the Zodiacal cloud. The knowledge of the Near-Earth Asteroid population has also increased dramatically, with the increased study arising from the heightened awareness of the danger to Earth from such bodies. Extrasolar planets have been discovered since the last meeting and it is recognised that interplanetary dust in other Planetary Systems can now be studied. Since much of the dust observed in such systems is at a distance of order 100 AU from the star, this brings into focus the production of dust in the Edgeworth-Kuiper belt of our own system. Recent years have seen a recognition of the importance of dust originating outside our own system, that is now present in the near-Earth environment. As is always the case when great strides take place observationally, much theoretical work follows, and the same is true in this instance. While data about the planetary medium from Venus to Jupiter was beginning to be available at the meeting in 1995, the data from both Galileo and Ulysses have now been more fully analysed, with a corresponding increase in our knowledge. This book reflects the thematic approach adopted at the meeting, with a flow outwards (from meteors in the atmosphere, through zodiacal dust observation and interplanetary dust, to extra solar planetary systems) and returning (via the Edgeworth-Kuiper belt and comets) to the Earth, with laboratory studies of physical and chemical processes and the study of extra-terrestrial samples.
Author: Xiaolin Tang
Publisher: Springer Nature
ISBN: 3031014987
Category : Technology & Engineering
Languages : en
Pages : 126
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Book Description
Thanks to the potential of reducing fuel consumption and emissions, hybrid electric vehicles (HEVs) have been attracting more and more attention from car manufacturers and researchers. Due to involving two energy sources, i.e., engine and battery, the powertrain in HEVs is a complicated electromechanical coupling system that generates noise and vibration different from that of a traditional vehicle. Accordingly, it is very important to explore the noise and vibration characteristics of HEVs. In this book, a hybrid vehicle with two motors is taken as an example, consisting of a compound planetary gear set (CPGS) as the power-split device, to analyze the noise and vibration characteristics. It is specifically intended for graduates and anyone with an interest in the electrification of full hybrid vehicles. The book begins with the research background and significance of the HEV. The second chapter presents the structural description and working principal of the target hybrid vehicle. Chapter 3 highlights the noise, vibration, and harshness (NVH) tests and corresponding analysis of the hybrid powertrain. Chapter 4 provides transmission system parameters and meshing stiffness calculation. Chapter 5 discusses the mathematical modeling and analyzes torsional vibration (TV) of HEVs. Finally, modeling of the hybrid powertrain with ADAMS is given in Chapter 6.
Author: Andrew Ball
Publisher: Cambridge University Press
ISBN: 1139461613
Category : Science
Languages : en
Pages : 313
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Book Description
This is a concise, broad overview of the engineering, science and history of planetary landers and atmospheric entry probes designed to explore the atmospheres and surfaces of other planets. This will form an important reference for professionals, researchers and graduate students in planetary science, aerospace engineering and space mission development.
Author: Bernard F. Burke
Publisher: Springer Science & Business Media
ISBN: 9401111545
Category : Science
Languages : en
Pages : 475
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Book Description
`Are there other planetary systems like ours? Other planets like ours? Is there life elsewhere in the Universe?' So asks Dr. Lew Allen Jr. in the Foreword. In December of 1992, theorists, observers, and instrument builders gathered at the California Institute of Technology to discuss the search for answers to these questions. The International Conference, entitled `Planetary Systems: Formation, Evolution, and Detection' and supported through NASA's newly formed TOPS (Toward Other Planetary Systems) program, was the first of a series of conferences uniting researchers across disciplines and political boundaries to share thoughts and information on planetary systems. The conference was sponsored by NASA, hosted by JPL at Caltech, and endorsed by the 1992 International Space Year Association. These proceedings include discussions of topics ranging from stellar, disk, and planetary formation to new ways of searching for other stellar systems containing planets. The authors represent a wide range of nationalities, disciplines, and points of view. The second international conference took place in December of 1993.
Author: Victoria Meadows
Publisher: University of Arizona Press
ISBN: 0816540659
Category : Science
Languages : en
Pages : 593
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Book Description
Are we alone in the universe? How did life arise on our planet? How do we search for life beyond Earth? These profound questions excite and intrigue broad cross sections of science and society. Answering these questions is the province of the emerging, strongly interdisciplinary field of astrobiology. Life is inextricably tied to the formation, chemistry, and evolution of its host world, and multidisciplinary studies of solar system worlds can provide key insights into processes that govern planetary habitability, informing the search for life in our solar system and beyond. Planetary Astrobiology brings together current knowledge across astronomy, biology, geology, physics, chemistry, and related fields, and considers the synergies between studies of solar systems and exoplanets to identify the path needed to advance the exploration of these profound questions. Planetary Astrobiology represents the combined efforts of more than seventy-five international experts consolidated into twenty chapters and provides an accessible, interdisciplinary gateway for new students and seasoned researchers who wish to learn more about this expanding field. Readers are brought to the frontiers of knowledge in astrobiology via results from the exploration of our own solar system and exoplanetary systems. The overarching goal of Planetary Astrobiology is to enhance and broaden the development of an interdisciplinary approach across the astrobiology, planetary science, and exoplanet communities, enabling a new era of comparative planetology that encompasses conditions and processes for the emergence, evolution, and detection of life.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1466
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Book Description
Author: Ellen Jones
Publisher: Columbia University Press
ISBN: 0231554834
Category : Literary Criticism
Languages : en
Pages : 164
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Book Description
Literature is often assumed to be monolingual: publishing rights are sold on the basis of linguistic territories and translated books are assumed to move from one “original” language to another. Yet a wide range of contemporary literary works mix and meld two or more languages, incorporating translation into their composition. How are these multilingual works translated, and what are the cultural and political implications of doing so? In Literature in Motion, Ellen Jones offers a new framework for understanding literary multilingualism, emphasizing how authors and translators can use its defamiliarizing and disruptive potential to resist conventions of form and dominant narratives about language and gender. Examining the connection between translation and multilingualism in contemporary literature, she considers its significance for the theory, practice, and publishing of literature in translation. Jones argues that translation does not conflict with multilingual writing’s subversive potential. Instead, we can understand multilingualism and translation as closely intertwined creative strategies through which other forms of textual and conceptual hybridity, fluidity, and disruption are explored. Jones addresses both well-known and understudied writers from across the American hemisphere who explore the spaces between languages as well as genders, genres, and textual versions, reading their work alongside their translations. She focuses on U.S. Latinx authors Susana Chávez-Silverman, Junot Díaz, and Giannina Braschi, who write in different forms of “Spanglish,” as well as the Brazilian writer Wilson Bueno, who combines Portuguese and Spanish, or “Portunhol,” with the indigenous language Guarani, and whose writing is rendered into “Frenglish” by Canadian translator Erín Moure.
