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Author: United States National Museum
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 680
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 384
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Author: G. Brown Goode
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
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Author: United States National Museum
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 680
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Author: George Brown Goode
Publisher:
ISBN:
Category : Animal products
Languages : en
Pages : 146
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Author: United States National Museum
Publisher:
ISBN:
Category : Animal products
Languages : en
Pages : 146
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Author: United States National Museum
Publisher:
ISBN:
Category : Animal products
Languages : en
Pages : 368
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Author: David Starr Jordan
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 1140
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Author: Frank Davis
Publisher: John Wiley & Sons
ISBN: 1119990297
Category : Technology & Engineering
Languages : en
Pages : 1069
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Macrocyclic molecules contain rings made up of seven or more atoms. They are interesting because they provide building blocks for synthesizing precise two or three dimensional structures – an important goal in nanotechnology. For example, they can be used to develop nanosized reaction vessels, cages, switches and shuttles, and have potential as components in molecular computers. They also have applications as catalysts and sensors. Macrocycles: Construction, Chemistry and Nanotechnology Applications is an essential introduction this important class of molecules and describes how to synthesise them, their chemistry, how they can be used as nanotechnology building blocks, and their applications. A wide range of structures synthesised over the past few decades are covered, from the simpler cyclophanes and multi-ring aromatic structures to vases, bowls, cages and more complex multi-ring systems and 3D architectures such as “pumpkins”, interlocking chains and knots. Topics covered include: principles of macrocycle synthesis simple ring compounds multi-ring aromatic structures porphyrins and phthalocanines cyclophanes crown ethers, cryptands and spherands calixarenes, resorcinarenes, cavitands, carcerands, and heterocalixarenes cyclodextrins cucurbiturils cyclotriveratylenes rotaxanes catenanes complex 3D architectures, including trefoils and knots Macrocycles: Construction, Chemistry and Nanotechnology Applications distills the essence of this important topic for undergraduate and postgraduate students, and for researchers in other fields interested in getting a general insight into this increasingly important class of molecules.
Author: Edward N. Luttwak
Publisher: Harvard University Press
ISBN: 067425564X
Category : History
Languages : en
Pages : 472
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In this book, the distinguished writer Edward N. Luttwak presents the grand strategy of the eastern Roman empire we know as Byzantine, which lasted more than twice as long as the more familiar western Roman empire, eight hundred years by the shortest definition. This extraordinary endurance is all the more remarkable because the Byzantine empire was favored neither by geography nor by military preponderance. Yet it was the western empire that dissolved during the fifth century. The Byzantine empire so greatly outlasted its western counterpart because its rulers were able to adapt strategically to diminished circumstances, by devising new ways of coping with successive enemies. It relied less on military strength and more on persuasion—to recruit allies, dissuade threatening neighbors, and manipulate potential enemies into attacking one another instead. Even when the Byzantines fought—which they often did with great skill—they were less inclined to destroy their enemies than to contain them, for they were aware that today’s enemies could be tomorrow’s allies. Born in the fifth century when the formidable threat of Attila’s Huns were deflected with a minimum of force, Byzantine strategy continued to be refined over the centuries, incidentally leaving for us several fascinating guidebooks to statecraft and war. The Grand Strategy of the Byzantine Empire is a broad, interpretive account of Byzantine strategy, intelligence, and diplomacy over the course of eight centuries that will appeal to scholars, classicists, military history buffs, and professional soldiers.
Author: United States National Museum
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1106
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