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1. |
Record Nr. |
UNINA9910229855303321 |
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Titolo |
Copp's land office bulletin / / Henry N. Copp, editor and proprietor |
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Pubbl/distr/stampa |
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Washington, D.C. : , : [Henry N. Copp], , [1889-1890] |
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ISSN |
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Descrizione fisica |
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1 online resource (1 volume) |
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Disciplina |
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Soggetti |
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Public lands - United States |
Land grants - United States |
Land grants |
Public lands |
Periodicals. |
United States |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Periodico |
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Sommario/riassunto |
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"This publication furnishes lists of agricultural, mineral, homestead, cash, timber culture and other patents issued from the General Land Office. Also lists of contested cases decided by the Secretary of the Interior and the Commissioner of the General Land Office with indications of the successful parties. Also notes on important rulings, and other matters of interest to people concerned in obtaining titles to the Public Lands." |
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2. |
Record Nr. |
UNISA996339089403316 |
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Autore |
Gates David Lee <1959-> |
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Titolo |
Sky wars : a history of military aerospace power / / David Gates |
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Pubbl/distr/stampa |
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ISBN |
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1-282-26523-7 |
9786612265235 |
1-86189-601-8 |
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Descrizione fisica |
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1 online resource (226 p.) |
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Collana |
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Disciplina |
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Soggetti |
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Air power - History |
Air warfare - History |
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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. 209-220) and index. |
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Nota di contenuto |
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Sky Wars Cover; Imprint page; Contents; Preface; Part One: History; 1 War in and from the Skies,1903-1943; 2 The Aerospace Era, 1943-2003; Part Two: Issues; 3 Aerospace Power's Evident Nature and its Impact on War and Peace; 4 Bases Ashore and Afloat; Missile-Defence Dilemmas; Abbreviations; References; Selected Further Reading; Index |
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Sommario/riassunto |
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In Sky Wars, David Gates examines the history of military aerospace power, discussing technical developments between both World Wars and the use of air power in specific wars in the latter part of the 20th century, including the recent conflict with Iraq. |
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3. |
Record Nr. |
UNINA9910829178703321 |
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Autore |
Biglieri Ezio |
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Titolo |
Principles of cognitive radio / / Ezio Biglieri [and four others] [[electronic resource]] |
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Pubbl/distr/stampa |
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Cambridge : , : Cambridge University Press, , 2013 |
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ISBN |
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1-107-23710-6 |
1-139-85427-5 |
1-139-84283-8 |
1-139-84519-5 |
1-139-84045-2 |
1-139-23685-7 |
1-139-84605-1 |
1-283-74667-0 |
1-139-84164-5 |
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Descrizione fisica |
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1 online resource (xxv, 299 pages) : digital, PDF file(s) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Cognitive radio networks |
Radio frequency allocation |
Software radio |
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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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Title from publisher's bibliographic system (viewed on 05 Oct 2015). |
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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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Cover; Contents; Contributors; Preface; Acknowledgments; Notation; 1 The concept of cognitive radio; 1.1 Motivation for cognitive radios: spectrum is underutilized; 1.2 What is cognitive radio?; 1.2.1 Agile radios and dynamic spectrum access; 1.2.2 User hierarchy in cognitive radio networks; 1.2.3 Usage scenarios for cognitive radio; 1.2.4 Cognitive radio bands; 1.3 Spectrum policy: present and future; 1.3.1 Role of spectrum policy; 1.4 Data explosion: future spectrum implications; 1.5 Applications of cognitive radio; 1.5.1 Dynamic spectrum access in cellular systems |
1.5.2 Cellular data boost1.5.3 Machine-to-machine communications; 1.5.4 Distribution and backhaul; 1.5.5 Cognitive digital home; 1.5.6 Long range vehicle-to-vehicle network; 1.6 Cognitive radio network |
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design; 1.6.1 Global control plane; 1.6.2 Spectrum servers, spectrum brokers, and network information servers; 1.6.3 Security aspects of cognitive radio; 1.7 Hardware and system design considerations; 1.7.1 Design tradeoffs in usage scenarios; 1.7.2 Antenna design in cognitive radio systems; 1.7.3 Analog-to-digital converters; 1.7.4 Wideband channels and noncontiguous transmission |
1.8 Spectrum coexistence in cognitive radio networks1.8.1 Spectrum pooling and bandwidth exchange; 1.8.2 Cross-layer scheduling in cognitive radio networks; 1.9 Prototyping; 1.10 Standardization activity in cognitive radio; 1.11 Organization of this book; References; References; 2 Capacity of cognitive radio networks; 2.1 Introduction; 2.2 Cognitive radio network paradigms; 2.2.1 Underlay paradigm; 2.2.2 Overlay paradigm; 2.2.3 Interweave paradigm; 2.2.4 Comparison of cognitive radio paradigms; 2.3 Fundamental performance limits of wireless networks; 2.3.1 Performance metrics |
2.3.2 Mathematical definition of capacity2.3.3 Capacity region of wireless networks; 2.4 Interference channels without cognition; 2.4.1 K-user interference channels; 2.4.2 Two-user interference channel capacity; 2.4.3 Interference channel techniques for cognitive radios; 2.5 Underlay cognitive radio networks; 2.5.1 Underlay capacity region; 2.5.2 Capacity results for specific scenarios; 2.6 Interweave cognitive radio networks; 2.6.1 Shannon capacity; 2.6.2 Random switch model for secondary channels; 2.6.3 Scaling laws for interweave networks; 2.7 Overlay cognitive radio networks |
2.7.1 Cognitive encoder for the two-user overlay channel2.7.2 Capacity results; 2.7.3 K-user overlay networks; 2.8 Summary; 2.9 Further reading; References; 3 Propagation issues for cognitive radio; 3.1 Introduction; 3.1.1 Propagation in the cognitive radio bands; 3.1.2 Impact of propagation on sensing; 3.1.3 Impact of propagation on transmission; 3.1.4 Outline of the chapter; 3.2 Generic channel response; 3.3 Introduction to path loss; 3.3.1 Free-space path loss; 3.3.2 Path loss in CR scenarios; 3.4 Path loss models for wireless channels; 3.4.1 General formulation; 3.4.2 Shadow fading, S |
3.4.3 Median path loss, PLmed |
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Sommario/riassunto |
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Widely regarded as one of the most promising emerging technologies for driving the future development of wireless communications, cognitive radio has the potential to mitigate the problem of increasing radio spectrum scarcity through dynamic spectrum allocation. Drawing on fundamental elements of information theory, network theory, propagation, optimisation and signal processing, a team of leading experts present a systematic treatment of the core physical and networking principles of cognitive radio and explore key design considerations for the development of new cognitive radio systems. Containing all the underlying principles you need to develop practical applications in cognitive radio, this book is an essential reference for students, researchers and practitioners alike in the field of wireless communications and signal processing. |
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4. |
Record Nr. |
UNINA9910557307103321 |
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Autore |
Rodríguez Pascual Alejandro |
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Titolo |
Lignocellulosic Biomass |
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Pubbl/distr/stampa |
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Basel, Switzerland, : MDPI - Multidisciplinary Digital Publishing Institute, 2021 |
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Descrizione fisica |
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1 online resource (312 p.) |
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Soggetti |
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Research & information: general |
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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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Sommario/riassunto |
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Recently, there has been a growing awareness of the need to make better use of natural resources. Hence, the utilization of biomass has led to so-called biorefinery, consisting of the fractionation or separation of the different components of the lignocellulosic materials in order to achieve a total utilization of the same, and not only of the cellulosic fraction for paper production. The use of plant biomass as a basic raw material implies a shift from an economy based on the exploitation of non-renewable fossil fuels, with limited reserves or with regeneration cycles far below the rates of exploitation, to a bioeconomy based on the use of renewable organic natural resources, with balanced regeneration and extraction cycles. To make this change, profound readjustments in existing technologies are necessary, as well as the application of new approaches in research, development, and production."Biorefinery" is the term used to describe the technology for the fractionation of plant biomass into energy, chemicals, and consumer goods. The future generation of biorefinery will include treatments, leading to high-value-added compounds. The use of green chemistry technologies and principles in biorefineries, such as solvent and reagent recovery and the minimization of effluent and gas emissions, is essential to define an economically and environmentally sustainable process.In particular, the biorefinery of lignocellulosic materials to produce biofuels, chemicals and materials is presented as a solid alternative to the current petrochemical platform and a possible |
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solution to the accumulation of greenhouse gases. |
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