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1. |
Record Nr. |
UNISA990003677320203316 |
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Autore |
FERRANTE, Vincenzo |
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Titolo |
Direzione e gerarchia nell'impresa (e nel lavoro pubblico privatizzato) : [Art. 2086] / Vincenzo Ferrante |
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Pubbl/distr/stampa |
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ISBN |
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Descrizione fisica |
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Collana |
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Il codice civile : commentario |
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Disciplina |
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Soggetti |
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Società <organizzazioni> - Legislazione |
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Collocazione |
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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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2. |
Record Nr. |
UNINA9910698407103321 |
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Titolo |
Adaptive housing grants [[electronic resource] ] : hearing before the Subcommittee on Economic Opportunity of the Committee on Veterans' Affairs, U.S. House of Representatives, One Hundred Eleventh Congress, first session, November 19, 2009 |
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Pubbl/distr/stampa |
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Washington : , : U.S. G.P.O., , 2010 |
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Descrizione fisica |
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1 online resource (iii, 52 pages) : illustrations |
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Soggetti |
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Disabled veterans - Housing - United States - Finance |
Disabled veterans - Services for - United States |
Self-help devices for people with disabilities - United States - Finance |
Federal aid to housing - United States |
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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 title screen (viewed on July 1, 2010). |
"Serial no. 111-52" |
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3. |
Record Nr. |
UNINA9910780744203321 |
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Autore |
Filippone Antonio <1965-> |
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Titolo |
Advanced Aircraft Flight Performance : Including Environmental Performance / / Antonio Filippone |
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Pubbl/distr/stampa |
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Reston, Virginia : , : American Institute of Aeronautics and Astronautics, Inc., , [2022] |
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©2022 |
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ISBN |
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9781624106408 |
9781624106392 |
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Edizione |
[Second edition.] |
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Descrizione fisica |
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1 online resource (831 pages) |
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Disciplina |
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Soggetti |
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Airplanes - Performance |
Airplanes - Design and construction |
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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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Nota di bibliografia |
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Includes bibliographical references and index. |
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Sommario/riassunto |
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In recent years there has been a renaissance in the field of aircraft flight performance with a number of developments centreing mostly on environmental performance, sustainability, digitisation, large data sets, integration with flight monitoring systems, and novel power plants - just to name a few. The aviation industry is now acutely aware of the climate emergency, and aircraft performance is now intrinsically linked to emissions.The availability of increasingly large amounts of digital data from on-board computers (flight data recorder, FADEC), data transmission to ground stations, internet streaming of flight data, and various web applications have created a wealth of performance data that would have been inconceivable just a few years ago. With advances in these two directions, as well as new engine technology (high by-pass turbofan engines, counter-rotating open rotors), this second edition of Advanced Aircraft Flight Performance features significant updates throughout, along with three new chapters. About one-third of the material now deals with environmental performance.The second part of this book is devoted to a wide spectrum of environmental aspects of flight. Exhaust gases have long time spans and aircraft condensation |
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trails are there to remind us that aviation is having a measurable impact on our skies. There is hope that sustainable aviation fuels could help reduce the overall emissions. The book also contains advanced material across several disciplines, including data-driven modelling, airframe-propulsion integration, thermo-structural performance, and flight mechanics. This textbook can be used as a guideline for teaching aircraft performance, aircraft noise, and environmental performance at a senior university level. |
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4. |
Record Nr. |
UNINA9910826058003321 |
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Autore |
Bourlier Christophe |
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Titolo |
Method of moments for 2d scattering problems : basic concepts and applications / / Christophe Bourlier, Nicolas Pinel, Gildas Kubické |
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Pubbl/distr/stampa |
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Hoboken, N.J., : ISTE Ltd/John Wiley and Sons Inc, 2013 |
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ISBN |
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9781118648681 |
1118648684 |
9781118648674 |
1118648676 |
9781118648698 |
1118648692 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (162 p.) |
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Collana |
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Focus waves series, , 2051-2481 |
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Altri autori (Persone) |
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PinelNicolás |
KubickéGildas |
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Disciplina |
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Soggetti |
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Electromagnetic waves - Scattering - Mathematical models |
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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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Cover; Title Page; Contents; Preface; Introduction; Chapter 1. Integral Equations For A Single Scatterer: Method Of Moments And Rough Surfaces; 1.1. Introduction; 1.2. Integral equations; 1.2.1. TE and TM polarizations and boundary conditions; 1.2.2. Electric and magnetic currents for a 2D problem; 1.2.3. Huygens' principle and extinction theorem; 1.2.4. Radar cross-section (RCS); 1.2.5. Normalized radar cross-section (NRCS); 1.3. Method of moments with point-matching |
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method; 1.4. Application to a surface; 1.4.1. The Dirichlet boundary conditions; 1.4.2. The Neumann boundary conditions |
1.4.3. General case 1.4.4. Impedance boundary condition; 1.5. Forward-Backward (FB) method; 1.6. Random rough surface generation; 1.6.1. Statistical parameters; 1.6.2. Generation of a random profile; 1.6.3. Simulations; 1.6.4. Conclusion; Chapter 2. Validation of the Method of Moments for a Single Scatterer; 2.1. Introduction; 2.2. Solutions of a scattering problem; 2.3. Comparison with the exact solution of a circular cylinder in free space; 2.3.1. Solution of the Helmholtz equation; 2.3.2. Dirichlet boundary conditions; 2.3.3. Neumann boundary conditions; 2.3.4. Dielectric cylinder |
2.3.5. MoM for an elliptical cylinder 2.3.6. Numerical comparisons for a circular cylinder; 2.3.7. Conclusion; 2.4. PO approximation; 2.4.1. Formulation; 2.4.2. Applications; 2.4.3. Sea-like surface; 2.5. FB method; 2.6. Conclusion; Chapter 3. Scattering from two Illuminated Scatterers; 3.1. Introduction; 3.2. Integral equations and method of moments; 3.2.1. Integral equations for two scatterers; 3.2.2. Method of moments for two scatterers; 3.2.3. Method of moments for P scatterers; 3.3. Efficient inversion of the impedance matrix: E-PILE method for two scatterers |
3.3.1. Mathematical formulation 3.3.2. Numerical results; 3.4. E-PILE method combined with PO and FB; 3.4.1. E-PILE hybridized with FB; 3.4.2. E-PILE hybridized with PO; 3.5. Conclusion; Chapter 4. Scattering from two Scatterers Where Only one is Illuminated; 4.1. Introduction; 4.2. Integral equations and method of moments; 4.2.1. Integral equations; 4.2.2. Method of moments; 4.2.3. Case for which scatterer 2 is perfectly conducting; 4.2.4. Numerical results; 4.3. Efficient inversion of the impedance matrix: PILE method; 4.3.1. Mathematical formulation; 4.3.2. Numerical results |
4.4. PILE method combined with FB or PO4.4.1. PILE hybridized with FB; 4.4.2. PILE hybridized with PO; 4.5. Conclusion; Appendix. Matlab Codes; Bibliography; Index |
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Sommario/riassunto |
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Electromagnetic wave scattering from randomly rough surfaces in the presence of scatterers is an active, interdisciplinary area of research with myriad practical applications in fields such as optics, acoustics, geoscience and remote sensing.In this book, the Method of Moments (MoM) is applied to compute the field scattered by scatterers such as canonical objects (cylinder or plate) or a randomly rough surface, and also by an object above or below a random rough surface. Since the problem is considered to be 2D, the integral equations (IEs) are scalar and only the TE (transverse elect |
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