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1. |
Record Nr. |
UNINA9910468009603321 |
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Autore |
Hansen Beke |
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Titolo |
Corpus linguistics and sociolinguistics : : a study of variation and change in the modal systems of world Englishes / / by Beke Hansen |
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Pubbl/distr/stampa |
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Leiden ; ; Boston : , : Brill, , [2018] |
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ISBN |
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90-04-38152-X |
90-04-38151-1 |
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Descrizione fisica |
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1 online resource (437 pages) |
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Collana |
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Language and computers : studies in digital linguistics, , 0921-5034 ; ; volume 82 |
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Disciplina |
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Soggetti |
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English language - Modality |
English language - Discourse analysis |
Corpora (Linguistics) |
Sociolinguistics |
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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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Front Matter -- Language and Computers -- Dedication -- Illustrations -- Abbreviations -- Introduction -- Previous Research -- The Theoretical Framework -- Methodology -- Obligation and Necessity in enl and esl -- The Feature Pool of Obligation and Necessity -- Selection Principles in the Feature Pool -- Apparent-time Developments -- Competition between must and have to -- Thematic Conclusion of the Study -- Methodological Implications of the Study -- Back Matter -- List of Databases, Software, and R Packages -- Bibliography -- Index. |
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Sommario/riassunto |
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In Corpus Linguistics and Sociolinguistics , Beke Hansen analyses variation and change in the modal systems of three second-language varieties of English in Asia by taking a sociolinguistic approach to corpus data. Her study focuses on the modal and semi-modal verbs of strong obligation and necessity in Hong Kong English, Indian English, and Singapore English based on the relevant ICE component corpora. She adopts a typologically-informed perspective on variation in World Englishes by comparing the structures of the speakers’ first languages with the structures of the emergent varieties in the expression of |
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epistemic modality. Beyond this, she analyses language change by constructing apparent-time scenarios to compensate for the lack of diachronic corpora in World Englishes. |
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2. |
Record Nr. |
UNISA996321308903316 |
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Titolo |
International journal of cardiovascular sciences |
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Pubbl/distr/stampa |
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Rio de Janeiro : , : Sociedade Brasileira de Cardiologia, , [2015]- |
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ISSN |
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Descrizione fisica |
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Soggetti |
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Cardiovascular system - Diseases |
Cardiovascular Diseases |
Cardiovascular System |
Electronic journals. |
Periodical |
Periodicals. |
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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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Note generali |
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3. |
Record Nr. |
UNINA9910143677603321 |
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Autore |
Hervouet Jean-Michel |
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Titolo |
Hydrodynamics of free surface flows [[electronic resource] ] : modelling with the finite element method / / Jean-Michel Hervouet |
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Pubbl/distr/stampa |
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Chichester ; ; Hoboken, N.J., : Wiley, c2007 |
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ISBN |
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1-280-90083-0 |
9786610900831 |
0-470-31962-3 |
0-470-31963-1 |
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Descrizione fisica |
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1 online resource (377 p.) |
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Disciplina |
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Soggetti |
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Finite element method |
Hydrodynamics - Data processing |
Hydrodynamics - Mathematical models |
Hydrodynamics |
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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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Hydrodynamics of Free Surface Flows; Contents; List of figures; List of tables; List of plates; Acknowledgements; 1 Introduction; 1.1 Twenty years of development at EDF; 1.2 Some smoother pebbles...; 1.2.1 Saint-Venant equations; 1.2.2 Navier-Stokes equations; 1.2.3 Finite elements techniques and optimization; 2 Equations of free surface hydrodynamics; 2.1 Notations and concepts in geometry; 2.2 Free surface Navier-Stokes equations; 2.2.1 Non-hydrostatic Navier-Stokes equations; 2.2.2 Boundary conditions; 2.2.3 Hydrostatic pressure and the Boussinesq approximation |
2.2.4 Source terms and body forces2.2.5 Navier-Stokes equations with sigma transform; 2.2.6 Tracer equations in 3 dimensions; 2.3 Saint-Venant equations; 2.3.1 Presentation and brief review; 2.3.2 Hypotheses, approximations and calculation rules; 2.3.3 Depth-averaging Navier-Stokes equations; 2.3.4 Different forms of equations; 2.3.5 The characteristics curves; 2.3.6 Notions on hydraulic jumps; 2.3.7 Saint-Venant equations in Mercator projection; 2.3.8 Saint-Venant equations with porosity; 2.3.9 Boussinesq equations; 2.3.10 |
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Serre equations |
2.3.11 Source terms and body forces in two dimensions2.3.12 Boundary conditions in 2D; 2.3.13 Tracer equation in two dimensions; 2.4 Modelling of turbulence and dispersion; 2.4.1 Reynolds stress; 2.4.2 Zero-equation models; 2.4.3 Turbulence stress on the walls; 2.4.4 Equations of the k-e model; 2.4.5 Other models; 3 Principles of the finite element method; 3.1 Introduction; 3.2 Interpolation in finite elements; 3.3 Variational principle; 4 Resolution of the Saint-Venant equations; 4.1 A glance at the existing methods; 4.1.1 Main properties of a (good) numerical scheme |
4.1.2 Finite difference schemes4.1.3 Finite volume schemes for hyperbolic equations; 4.1.4 Kinetic schemes; 4.1.5 Finite element schemes; 4.2 Overall view of the Telemac-2D algorithm; 4.3 Fractional steps method; 4.4 Advection stage using the method of characteristics; 4.5 Propagation, diffusion, source terms; 4.5.1 Time discretization; 4.5.2 Space discretization; 4.5.3 Variational formulation; 4.5.4 Natural boundary conditions; 4.5.5 Sources and sinks; 4.5.6 Matrix form of the system; 4.6 Radiation conditions; 4.7 Resolution of the Boussinesq equations |
4.8 Resolution of k-e model equations in 2D4.8.1 Advection step; 4.8.2 Production, diffusion, source terms; 4.9 Solving the tracer equation in 2D; 4.10 Laws of conservation in 2D; 4.10.1 Mass conservation of the fluid; 4.10.2 Conservation of the tracer; 4.10.3 Head and momentum conservation; 4.10.4 Conservation of energy; 4.11 The treatment of uncovered beds; 4.11.1 Option 1: correction of the free surface gradient; 4.11.2 Option 2: masking of exposed elements; 4.12 Pseudo wave equation; 4.13 Some validation test cases; 4.13.1 Test of a lake at rest |
4.13.2 Rapid flow over a weir with a hydraulic jump downstream |
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Sommario/riassunto |
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A definitive guide for accurate state-of-the-art modelling of free surface flows Understanding the dynamics of free surface flows is the starting point of many environmental studies, impact studies, and waterworks design. Typical applications, once the flows are known, are water quality, dam impact and safety, pollutant control, and sediment transport. These studies used to be done in the past with scale models, but these are now being replaced by numerical simulation performed by software suites called "hydro-informatic systems". The Telemac system is the leading software package wor |
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