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Record Nr. |
UNINA9910454280903321 |
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Autore |
Porubov Alexey V |
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Titolo |
Amplification of nonlinear strain waves in solids [[electronic resource] /] / Alexey V. Porubov |
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Pubbl/distr/stampa |
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Singapore ; ; River Edge, NJ, : World Scientific, c2003 |
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ISBN |
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1-281-93443-7 |
9786611934439 |
981-279-429-8 |
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Descrizione fisica |
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1 online resource (229 p.) |
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Collana |
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Series on stability, vibration, and control of systems. Series A ; ; v. 9 |
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Disciplina |
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Soggetti |
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Stress waves |
Solids |
Differential equations, Nonlinear - Numerical solutions |
Nonlinear waves |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references (p. 199-209) and index. |
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Nota di contenuto |
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Preface; Contents; 1. Basic concepts; 1.1 Single nonlinear waves of permanent shape; 1.2 Formation of nonlinear waves of permanent shape from an arbitrary input; 1.3 Amplification attenuation and selection of nonlinear waves; 2. Mathematical tools for the governing equations analysis; 2.1 Exact solutions; 2.2 Asymptotic solutions; 2.3 Numerical methods; 2.4 Use of Mathematica; 3. Strain solitary waves in an elastic rod; 3.1 The sources of nonlinearities; 3.2 Modelling of nonlinear strain waves in a free lateral surface elastic rod; 3.3 Double-dispersive equation and its solitary wave solution |
3.4 Observation of longitudinal strain solitary waves3.5 Reflection of solitary wave from the edge of the rod; 4. Amplification of strain waves in absence of external energy influx; 4.1 Longitudinal strain solitary wave amplification in a narrowing elastic rod; 4.2 Strain solitary waves in an elastic rod embedded in another elastic external medium with sliding; 4.3 Strain solitary waves in an elastic rod with microstructure; 5. Influence of dissipative (active) external medium; 5.1 Contact problems: various approaches |
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5.2 Evolution of bell-shaped solitary waves in presence of active/ dissipative external medium5.3 Strain kinks in an elastic rod embedded in an active/ dissipative medium; 5.4 Influence of external tangential stresses on strain solitary waves evolution in a nonlinear elastic rod; 6. Bulk active or dissipative sources of the amplification and selection; 6.1 Nonlinear bell-shaped and kink-shaped strain waves in microstructured solids; 6.2 Nonlinear seismic solitary waves selection; 6.3 Moving defects induced by external energy flux; 6.4 Thermoelastic waves; Bibliography; Index |
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Sommario/riassunto |
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This book treats two problems simultaneously: sequential analytical consideration of nonlinear strain wave amplification and selection in wave guides and in a medium; demonstration of the use of even particular analytical solutions to nonintegrable equations in a design of numerical simulation of unsteady nonlinear wave processes. The text includes numerous detailed examples of the strain wave amplification and selection caused by the influence of an external medium, microstructure, moving point defects, and thermal phenomena. The main features of the book are: (1) nonlinear models of the stra |
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2. |
Record Nr. |
UNINA9910466442203321 |
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Autore |
Crawford Matthew James |
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Titolo |
The Andean wonder drug : cinchona bark and imperial science in the Spanish Atlantic, 1630-1800 / / Matthew James Crawford |
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Pubbl/distr/stampa |
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Pittsburgh, Pennsylvania : , : University of Pittsburgh Press, , 2016 |
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©2016 |
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ISBN |
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Descrizione fisica |
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1 online resource (297 p.) |
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Disciplina |
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Soggetti |
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Cinchona bark - Therapeutic use |
Drugs - History |
Medicine - History |
Science - Social aspects |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Contents; Acknowledgements; Introduction: The Power and Fragility of European Science in the Spanish Atlantic World; Part I. Andean, Atlantic, and Imperial Networks of Knowledge; 1. Quina as a Medicament from the Andean World; 2. Quina as a Product of the Atlantic World; 3. Quina as a Natural Resource for the Spanish Empire; Part II. The Rule of the Local and the Rise of the Botanists; 4. Loja's Bark Collectors, the King's Pharmacists, and the Search for the Best Bark; 5. Botanists as the Empire's New Experts in Madrid |
6. Imperial Reform, Local Knowledge, and the Limits of Botany in the Andean World7. Regalist and Mercantilist Visions of Empire in the "War of the Quinas"; Conclusion: The Natures of Empire before the "Drapery" of Modern Science; Notes; Bibliography; Index |
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Sommario/riassunto |
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"In the eighteenth century, malaria was a prevalent and deadly disease, and the only effective treatment was found in the Andean forests of Spanish America: a medicinal bark harvested from cinchona trees that would later give rise to the antimalarial drug quinine. The Andean Wonder Drug uses the story of cinchona bark to demonstrate how the imperial politics of knowledge in the Spanish Atlantic ultimately undermined efforts to transform European science into a tool of empire"-- |
"In the eighteenth century, malaria was a prevalent and deadly disease, and the only effective treatment was found in the Andean forests of Spanish America: a medicinal bark harvested from cinchona trees that would later give rise to the antimalarial drug quinine. In 1751, the Spanish Crown asserted control over the production and distribution of this medicament by establishing a royal reserve of "fever trees" in Quito. Through this pilot project, the Crown pursued a new vision of imperialism informed by science and invigorated through commerce. But ultimately this project failed, much like the broader imperial reforms that it represented. Drawing on extensive archival research, Matthew Crawford explains why, showing how indigenous healers, laborers, merchants, colonial officials, and creole elites contested European science and thwarted imperial reform by asserting their authority to speak for the natural world. The Andean Wonder Drug uses the story of cinchona bark to demonstrate how the imperial politics of knowledge in the Spanish Atlantic ultimately undermined efforts to transform European science into a tool of empire"-- |
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