Andrei alexandru (104 risultati)
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Da: Versandbuchhandlung Kisch & Co., Fürstenberg OT Blumenow, GermaniaVersandbuchhandlung Kisch & Co.
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Taschenbuch. Condizione: Neu. Neu Neuware; original eingeschweisst; Rechnung mit MwSt.; new item, still sealed; -Energy supply and use, together with the need of developing clean and renewable sources of energy, have become one of the defining challenges of the twenty-first century. Solar energy conversion is known to be a reali…stic alternative for a secure low cost energy supply and low carbon emissions. Regarded as the low cost next-generation of photovoltaics, the biomimetic dye sensitised solar cell uses a unique photoelectrochemical mechanism and resembles the photosynthesis in the plant leaves. In comparison to other photovoltaics technologies, the dye sensitised solar cell has exceptional features that are reviewed here. The book aims to contribute to the development of renewable energy and to the physics of solar cells, in particular to the dye sensitised solar cell. It also highlights, from a theoretical, experimental and economical point of view, some of the main aspects and issues that need to be addressed in dye sensitised solar cell research, aiming towards future improvements. 116 pp. Englisch.
Theory in the Post Era : A Vocabulary for the 21st-century Conceptual Commons
Moraru, Christian (EDT); Terian, Andrei (EDT); Matei, Alexandru (EDT)
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Da: GreatBookPrices, Columbia, MD, U.S.A.GreatBookPrices
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EUR 37,82
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- Prima edizione
Da: Allen Williams Books, Dover, KENT, Regno UnitoAllen Williams Books
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EUR 18,04
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Hardcover. Condizione: Very Good. Picture Boards. 1st Edition. Bottom tips of the boards have been bumped. Remnants of a past retailer's label on the rear board. In this book the authors present an alternative set theory dealing with a more relaxed notion of infiniteness, called finitely supported mathematics (FSM). It has stron…g connections to the Fraenkel-Mostowski (FM) permutative model of Zermelo-Fraenkel (ZF) set theory with atoms and to the theory of (generalized) nominal sets. More exactly, FSM is ZF mathematics rephrased in terms of finitely supported structures, where the set of atoms is infinite (not necessarily countable as for nominal sets). In FSM, 'sets' are replaced either by `invariant sets' (sets endowed with some group actions satisfying a finite support requirement) or by `finitely supported sets' (finitely supported elements in the powerset of an invariant set). It is a theory of `invariant algebraic structures' in which infinite algebraic structures are characterized by using their finite supports. After explaining the motivation for using invariant sets in the experimental sciences as well as the connections with the nominal approach, admissible sets and Gandy machines (Chapter 1), the authors present in Chapter 2 the basics of invariant sets and show that the principles of constructing FSM have historical roots both in the definition of Tarski `logical notions' and in the Erlangen Program of Klein for the classification of various geometries according to invariants under suitable groups of transformations. Furthermore, the consistency of various choice principles is analyzed in FSM. Chapter 3 examines whether it is possible to obtain valid results by replacing the notion of infinite sets with the notion of invariant sets in the classical ZF results. The authors present techniques for reformulating ZF properties of algebraic structures in FSM. In Chapter 4 they generalize FM set theory by providing a new set of axioms inspired by the theory of amorphous sets, and so defining the extended Fraenkel-Mostowski (EFM) set theory. In Chapter 5 they define FSM semantics for certain process calculi (e.g., fusion calculus), and emphasize the links to the nominal techniques used in computer science. They demonstrate a complete equivalence between the new FSM semantics (defined by using binding operators instead of side conditions for presenting the transition rules) and the known semantics of these process calculi. Size: 8vo - over 7¾" - 9¾" tall. Book.
Theory in the Post Era : A Vocabulary for the 21st-century Conceptual Commons
Moraru, Christian (EDT); Terian, Andrei (EDT); Matei, Alexandru (EDT)
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Da: GreatBookPrices, Columbia, MD, U.S.A.GreatBookPrices
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- Brossura
Da: Che & Chandler Versandbuchhandlung, Fürstenberg OT Blumenow, GermaniaChe & Chandler Versandbuchhandlung
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Taschenbuch. Condizione: Neu. Neu Neuware; original eingeschweisst; Rechnung mit MwSt.; new item, still sealed; -Energy supply and use, together with the need of developing clean and renewable sources of energy, have become one of the defining challenges of the twenty-first century. Solar energy conversion is known to be a reali…stic alternative for a secure low cost energy supply and low carbon emissions. Regarded as the low cost next-generation of photovoltaics, the biomimetic dye sensitised solar cell uses a unique photoelectrochemical mechanism and resembles the photosynthesis in the plant leaves. In comparison to other photovoltaics technologies, the dye sensitised solar cell has exceptional features that are reviewed here. The book aims to contribute to the development of renewable energy and to the physics of solar cells, in particular to the dye sensitised solar cell. It also highlights, from a theoretical, experimental and economical point of view, some of the main aspects and issues that need to be addressed in dye sensitised solar cell research, aiming towards future improvements. 116 pp. Englisch.
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Da: GreatBookPrices, Columbia, MD, U.S.A.GreatBookPrices
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EUR 52,37
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Theory in the Post Era : A Vocabulary for the 21st-century Conceptual Commons
Moraru, Christian (EDT); Terian, Andrei (EDT); Matei, Alexandru (EDT)
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Da: GreatBookPricesUK, Woodford Green, Regno UnitoGreatBookPricesUK
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EUR 38,63
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Da: California Books, Miami, FL, U.S.A.California Books
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EUR 59,95
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Da: GreatBookPrices, Columbia, MD, U.S.A.GreatBookPrices
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Condizione: As New. Unread book in perfect condition.
Theory in the Post Era : A Vocabulary for the 21st-century Conceptual Commons
Moraru, Christian (EDT); Terian, Andrei (EDT); Matei, Alexandru (EDT)
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Da: GreatBookPricesUK, Woodford Green, Regno UnitoGreatBookPricesUK
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EUR 46,28
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Condizione: As New. Unread book in perfect condition.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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EUR 46,90
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Taschenbuch. Condizione: Neu. Neuware -In the framework of a fast-changing globalized economy, European small and medium-sized enterprises (SMEs) are at the crossroads of international external pressures and internal reaction constraints. This volume draws upon the importance of leveraging European SMEs' intellectual capital in…the context of internationalization and development of sustainable international partnerships, in order to create and maintain relevant competitive advantages. At a practical level, it explores the European initiatives and the Romanian legal, governmental and institutional instruments aimed at supporting the SMEs in their various endeavors, from accessing relevant knowledge to deploying successful operations in foreign markets. Thus, it offers insight and valuable knowledge to academics and managers interested in the international expansion of SMEs.This volume was supported by a grant of the Ministry of Research and Innovation, CNCS - UEFISCDI, project number PN-III-P1-1.1-TE-2016-0232, within PNCDI III. 164 pp. Englisch.
Spatial Planning Systems in Central and Eastern European Countries: Review and Comparison of Selected Issues (SpringerBriefs in Geography)
Nowak, Maciej J.; Mitrea, Andrei; Lukstiņa, Gunta; Petrişor, Alexandru-Ionuţ; Filepné Kovács, Krisztina; Simeonova, Velislava; Yanchev, Pavel; Jürgenson, Evelin; Põdra, Kätlin; Řezáč, Vít; Mikalauskaite, Kristina; Pranevičienė, Birute; Ladzianska, Zuzana; Baloga, Martin
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Da: Books Puddle, New York, NY, U.S.A.Books Puddle
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EUR 71,23
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Condizione: New. pp. 116.
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Da: Ria Christie Collections, Uxbridge, Regno UnitoRia Christie Collections
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EUR 61,10
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Da: Ria Christie Collections, Uxbridge, Regno UnitoRia Christie Collections
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EUR 61,10
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Da: Books Puddle, New York, NY, U.S.A.Books Puddle
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Condizione: New. pp. 196 Softcover reprint of the original 1st ed. 2016 edition NO-PA16APR2015-KAP.
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Da: Chiron Media, Wallingford, Regno UnitoChiron Media
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EUR 57,39
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PF. Condizione: New.
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Da: Books Puddle, New York, NY, U.S.A.Books Puddle
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EUR 73,59
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Condizione: New. pp. 185.
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Da: GreatBookPricesUK, Woodford Green, Regno UnitoGreatBookPricesUK
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EUR 61,08
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Condizione: New.
Theory in the Post Era: A Vocabulary for the 21st-century Conceptual Commons
Moraru, Christian (Editor)/ Terian, Andrei (Editor)/ Matei, Alexandru (Editor)
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Da: Revaluation Books, Exeter, Regno UnitoRevaluation Books
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EUR 66,43
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Paperback. Condizione: Brand New. 376 pages. 9.00x6.00x1.00 inches. In Stock.
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Da: GreatBookPricesUK, Woodford Green, Regno UnitoGreatBookPricesUK
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EUR 66,09
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Condizione: As New. Unread book in perfect condition.
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Da: Revaluation Books, Exeter, Regno UnitoRevaluation Books
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EUR 78,58
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Hardcover. Condizione: Brand New. 196 pages. 9.50x6.50x0.75 inches. In Stock.
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Da: PBShop.store UK, Fairford, GLOS, Regno UnitoPBShop.store UK
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EUR 105,34
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HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.
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Da: preigu, Osnabrück, Germaniapreigu
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EUR 41,75
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Taschenbuch. Condizione: Neu. Filling the Gaps | Intellectual Capital and the Internationalization of European SMEs | Elena-M¿d¿lina V¿t¿m¿nescu Vlad-Andrei Alexandru (u. a.) | Taschenbuch | Englisch | 2020 | LAP LAMBERT Academic Publishing | EAN 9786200534514 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengeriche…r Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.
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Da: preigu, Osnabrück, Germaniapreigu
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EUR 43,35
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Taschenbuch. Condizione: Neu. Renewable energy in the 21st century | The promise of dye sensitised solar cells | Codrin Alexandru Andrei | Taschenbuch | 116 S. | Englisch | 2010 | LAP LAMBERT Academic Publishing | EAN 9783843356848 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrüc…k, mail[at]preigu[dot]de | Anbieter: preigu.
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Da: GreatBookPrices, Columbia, MD, U.S.A.GreatBookPrices
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EUR 117,58
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Condizione: As New. Unread book in perfect condition.
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Da: preigu, Osnabrück, Germaniapreigu
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EUR 50,40
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Taschenbuch. Condizione: Neu. Finitely Supported Mathematics | An Introduction | Andrei Alexandru (u. a.) | Taschenbuch | vii | Englisch | 2018 | Springer | EAN 9783319825458 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu….
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Da: AHA-BUCH GmbH, Einbeck, GermaniaAHA-BUCH GmbH
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EUR 59,97
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Buch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - In this book the authors present an alternative set theory dealing with a more relaxed notion of infiniteness, called finitely supported mathematics (FSM). It has strong connections to the Fraenkel-Mostowski (FM) permutative model of Zermelo-Fraenkel (ZF…) set theory with atoms and to the theory of (generalized) nominal sets. More exactly, FSM is ZF mathematics rephrased in terms of finitely supported structures, where the set of atoms is infinite (not necessarily countable as for nominal sets). In FSM, 'sets' are replaced either by `invariant sets' (sets endowed with some group actions satisfying a finite support requirement) or by `finitely supported sets' (finitely supported elements in the powerset of an invariant set). It is a theory of `invariant algebraic structures' in which infinite algebraic structures are characterized by using their finite supports. After explaining the motivation for using invariant sets in the experimental sciences as well as the connections with the nominal approach, admissible sets and Gandy machines (Chapter 1), the authors present in Chapter 2 the basics of invariant sets and show that the principles of constructing FSM have historical roots both in the definition of Tarski `logical notions' and in the Erlangen Program of Klein for the classification of various geometries according to invariants under suitable groups of transformations. Furthermore, the consistency of various choice principles is analyzed in FSM. Chapter 3 examines whether it is possible to obtain valid results by replacing the notion of infinite sets with the notion of invariant sets in the classical ZF results. The authors present techniques for reformulating ZF properties of algebraic structures in FSM. In Chapter 4 they generalize FM set theory by providing a new set of axioms inspired by the theory of amorphous sets, and so defining the extended Fraenkel-Mostowski (EFM) set theory. In Chapter 5 they define FSM semantics for certain process calculi (e.g., fusion calculus), and emphasize the links to the nominal techniques used in computer science. They demonstrate a complete equivalence between the new FSM semantics (defined by using binding operators instead of side conditions for presenting the transition rules) and the known semantics of these process calculi.The book is useful for researchers and graduate students in computer science and mathematics, particularly those engaged with logic and set theory.
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Da: Ria Christie Collections, Uxbridge, Regno UnitoRia Christie Collections
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EUR 116,53
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Condizione: New. In.
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Da: Ria Christie Collections, Uxbridge, Regno UnitoRia Christie Collections
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EUR 116,53
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Condizione: New. In.
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Da: Rarewaves.com USA, London, LONDO, Regno UnitoRarewaves.com USA
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EUR 130,23
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Hardback. Condizione: New. This book focuses on finiteness conjectures and results in ordinary differential equations (ODEs) and Diophantine geometry. During the past twenty-five years, much progress has been achieved on finiteness conjectures, which are the offspring of the second part of Hilbert's 16th problem. Even in its sim…plest case, this is one of the very few problems on Hilbert's list which remains unsolved. These results are about existence and estimation of finite bounds for the number of limit cycles occurring in certain families of ODEs.The book describes this progress, the methods used (bifurcation theory, asymptotic expansions, methods of differential algebra, or geometry) and the specific results obtained. The finiteness conjectures on limit cycles are part of a larger picture that also includes finiteness problems in other areas of mathematics, in particular those in Diophantine geometry where remarkable results were proved during the same period of time. There is a chapter devoted to finiteness results in Diophantine geometry obtained by using methods of differential algebra, which is a connecting element between these parallel developments in the book.The volume can be used as an independent study text for advanced undergraduates and graduate students studying ODEs or applications of differential algebra to differential equations and Diophantine geometry. It is also a good entry point for researchers interested these areas, in particular, in limit cycles of ODEs, and in finiteness problems. Contributors to the volume include Andrei A. Bolibrukh and Alexandru Buium. Available from the AMS by A. Buium is ""Arithmetic Differential Equations"", as Volume 118 in the ""Mathematical Surveys and Monographs"" series.
