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[null,"1.","Record Nr.",null,"UNINA9910132269503321"]
[null,null,"Autore",null,"Jebahi Mohamed"]
[null,null,"Titolo",null,"Discrete element model and simulation of continuous materials behavior set . Volume 1 Discrete element method to model 3D continuous materials / / Mohamed Jebahi [and three others]"]
[null,null,"Pubbl/distr/stampa",null,"London, England ; ; Hoboken, New Jersey : , : iSTE : , : Wiley, , 2015"]
[{"$nulls":4},"©2015"]
[null,null,"ISBN",null,"1-119-10275-8"]
[{"$nulls":4},"1-119-10304-5"]
[{"$nulls":4},"1-119-10291-X"]
[null,null,"Descrizione fisica",null,"1 online resource (198 p.)"]
[null,null,"Collana",null,"Numerical Methods in Engineering Series"]
[null,null,"Disciplina",null,"620.11015118"]
[null,null,"Soggetti",null,"Materials - Mathematical models"]
[{"$nulls":4},"Discrete element method"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"Cover; Title Page; Copyright; Contents; List of Figures; List of Tables; Preface; Introduction; I.1. Toward discrete element modeling of continuous materials; I.2. Scope and objective; I.3. Organization; 1: State of the Art: Discrete Element Modeling; 1.1. Introduction; 1.2. Classification of discrete methods; 1.2.1. Quantum mechanical methods; 1.2.2. Atomistic methods; 1.2.3. Mesoscopic discrete methods; 1.2.3.1. Lattice methods; 1.2.3.2. Smooth contact particle methods; 1.2.3.3. Non-smooth contact particle models; 1.2.3.4. Hybrid lattice-particle models"]
[{"$nulls":4},"1.3. Discrete element method for continuous materials1.4. Discrete-continuum transition: macroscopic variables; 1.4.1. Stress tensor for discrete systems; 1.4.2. Strain tensor for discrete systems; 1.4.2.1. Equivalent continuum strains; 1.4.2.2. Best-fit strains; 1.4.2.3. Satake strain; 1.5. Conclusion; 2: Discrete Element Modeling of Mechanical Behavior of Continuous Materials; 2.1. Introduction; 2.2. Explicit dynamic algorithm; 2.3. Construction of the discrete domain; 2.3.1. The cooker compaction algorithm; 2.3.1.1. Stopping criterion of compaction process; 2.3.1.2. Filling process"]
[{"$nulls":4},"2.3.1.3. Overlapping removing2.3.2. Geometrical characterization of the discrete domain; 2.3.2.1. Geometrical isotropy and granulometry; 2.3.2.2. Average coordination number; 2.3.2.3. Discrete domain "]
[{"$nulls":4},"fineness; 2.4. Mechanical behavior modeling; 2.4.1. Cohesive beam model; 2.4.1.1. Analytical model; 2.4.1.2. Strain energy computation; 2.4.2. Calibration of the cohesive beam static parameters; 2.4.2.1. Quasistatic tensile test description; 2.4.2.1.1. From discrete to continuous geometry; 2.4.2.1.2. Loading; 2.4.2.1.3. EM and νM computation; 2.4.2.2. Parametric study"]
[{"$nulls":4},"2.4.2.2.1. Microscopic Poisson's ratio influence2.4.2.2.2. Microscopic Young's modulus influence; 2.4.2.2.3. Microscopic radius ratio influence; 2.4.2.3. Calibration method for static parameters; 2.4.2.4. Convergence study; 2.4.2.5. Validation; 2.4.3. Calibration of the cohesive beam dynamic parameters; 2.4.3.1. Calibration method for dynamic parameters; 2.4.3.2. Validation; 2.5. Conclusion; 3: Discrete Element Modeling of Thermal Behavior of Continuous Materials; 3.1. Introduction; 3.2. General description of the method; 3.2.1. Characterization of field variable variation in discrete domain"]
[{"$nulls":4},"3.2.2. Application to heat conduction3.3. Thermal conduction in 3D ordered discrete domains; 3.4. Thermal conduction in 3D disordered discrete domains; 3.4.1. Determination of local parameters for each discrete element; 3.4.2. Calculation of discrete element transmission surface; 3.4.3. Calculation of local volume fraction; 3.4.4. Interactions between each discrete element and its neighbors; 3.5. Validation; 3.5.1. Cylindrical beam in contact with a hot plane; 3.5.2. Dynamically heated sheet; 3.6. Conclusion; 4: Discrete Element Modeling of Brittle Fracture; 4.1. Introduction"]
[{"$nulls":4},"4.2. Fracture model based on the cohesive beam bonds"]
[null,null,null,"Sommario/riassunto","Complex behavior models (plasticity, cracks, visco elascticity) face some theoretical difficulties for the determination of the behavior law at the continuous scale. When homogenization fails to give the right behavior law, a solution is to simulate the material at a meso scale in order to simulate directly a set of discrete properties that are responsible of the macroscopic behavior.  The discrete element model has been developed for granular material. The proposed set shows how this method is capable to solve the problem of complex behavior that are linked to discrete meso scale effects."]
[null,"2.","Record Nr.",null,"UNINA9910297054103321"]
[null,null,"Autore",null,"Südekum Jens"]
[null,null,"Titolo",null,"Agglomeration and regional unemployment disparities : a theoretical analysis with reference to the European Union / / Jens Südekum"]
[null,null,"Pubbl/distr/stampa",null,"Bern, : Peter Lang International Academic Publishing Group, 2018"]
[{"$nulls":4},"Frankfurt am Main, Germany : , : Peter Lang, , 2003"]
[null,null,"ISBN",null,"3-631-75686-0"]
[null,null,"Edizione",null,"[First edition.]"]
[null,null,"Descrizione fisica",null,"1 online resource (230)"]
[null,null,"Collana",null,"CeGE-Schriften."]
[null,null,"Disciplina",null,"331.13794011"]
[null,null,"Soggetti",null,"Unemployment - European Union countries - Regional disparities - Mathematical models"]
[{"$nulls":4},"European Union countries Economic conditions Regional disparities Mathematical models"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,"Nota di contenuto",null,"Cover -- Forewords -- Table of contents -- List of tables, figures and maps -- Introduction -- A) Spatial economic disparities within the European Union: The evidence -- A1) Preface: Level of spatial disaggregation and the choice of territorial units -- A2) Gross domestic product (GDP) -- A2.1.) GDP of European NUTS II-regions, 1999 -- A2.2.) Regional convergence versus divergence in Europe -- A3) Regional unemployment in Europe -- A3.1.) Unemployment rates in NUTS2-regions, 2000 -- A3.2.) Convergence versus divergence of regional unemployment rates -- A4) Other regional indicators -- A4.1.) Employment Growth -- A4.2.) Population Density, Population Changes and Migration -- A4.3.) Education -- A4.4.) Innovation and research activities -- A5) A closer look at the West German Länder -- A6) Summing up the evidence -- B) Macroeconomic theories of unemployment and the \"European labour market model\" -- B1) Introduction -- B2) A brief historical overview about macroeconomics -- B2.1.) The 'classics' -- B2.2.) Keynes and the neoclassical synthesis -- B2.3.) Friedman and the 'natural rate of unemployment' -- B2.4.) 'New classical macroeconomics' and rational expectations -- B2.5.) The Keynesian response -- B3) The \"European labour market model (ELMM)\" -- B3.1.) Why is there insider power in the labour market -- B3.2.) The aggregate wage setting curve -- B3.3.) The aggregate price setting curve -- B3.4.) Equilibrium in the ELMM -- B3.5.) Some further issues of the ELMM -- C) The wage curve -- C1) Introduction -- C2) The wage "]
[{"$nulls":4},"curve as an empirical regularity -- C3) Wage curve theory: The Blanchflower/Oswald-model -- C3.1.) The partial equilibrium foundation of the wage curve -- C3.2.) General equilibrium in the Blanchflower/Oswald-model -- C3.3.) Critique of the Blanchflower/Oswald-model -- C4) The model of Blien (2001)."]
[{"$nulls":4},"C4.1.) Partial labour market equilibrium in the Blien-model -- C4.2.) The product market and general equilibrium in the Blien-model -- C4.3.) Critique of the Blien-model -- C5) Conclusion on wage curve theory and motivation for an own approach -- D) Regional agglomeration theory and 'new economic geography' -- D1) Introduction -- D2) Scale economies, externalities, and market competition -- D3) The Marshallian agglomeration economies -- D4) Centrifugal forces and other location factors -- D5) The core-periphery model of 'new economic geography' -- D5.1.) Consumer behaviour -- D5.2.) Production -- D5.3.) Equilibrium conditions -- D5.4.) Sustainability -- D5.5.) Stability -- D5.6.) 'New economic geography' and the new trade theory -- D6) Other 'new economic geography'-models -- D6.1.) Venables (1996) and Krugman/Venables (1995) -- D6.2.) Housing scarcity: Helpman (1998) -- D6.3.) Analytically tractable models -- D6.4.) More sectors, more regions -- D6.5.) Dynamic models -- D6.6.) Empirics, politics, and other unsettled issues -- D7) Regional costs-of-living: An extension of the Krugman-model -- D7.1.) Regional costs-of-living: the evidence -- D7.2.) The basic structure of the extended model -- D7.3.) Sustainability and stability -- D7.4.) Conclusion of our approach -- Appendix -- E) Regional agglomeration and regional unemployment -- E1) Introduction -- E2) The existing literature -- E2.1.) The model of Matusz (1996) -- E2.2.) The model of Peeters/Garretsen (2000) -- E3) Regional agglomeration and the wage curve: The model -- E3.1.) The closed-economy setting -- E3.2.) The two-region case with imperfect trade -- E3.3.) The impact of labour mobility -- E4) Critical discussion of our model approach -- E4.1.) Discussion of the model from a theoretical point of view -- E4.2.) Discussion of the model from an empirical point of view -- E5) Further issues."]
[{"$nulls":4},"F) Internal migration and regional disparities -- F1) Introduction -- F2) The causes of internal migration -- F3) The consequences of internal migration: The neoclassical view -- F4) Internal migration and regional divergence: alternative views -- F4.1.) Increasing returns to scale -- F4.2.) Selective labour migration -- F5) Selective migration in a two-region model -- F5.1.) The full-employment case -- F5.2.) Union wage setting and unskilled unemployment -- F5.3.) Conclusion of the model with constant returns to scale -- F6) Agglomeration, worker heterogeneity and national union wage setting -- F6.1.) The full employment case -- F6.2.) The case with unemployment -- F7) Discussion of the theoretical models and their empirical relevance -- F7.1.) Discussion from a theoretical point of view -- F7.2.) Discussion from an empirical point of view -- Concluding remarks -- List of references."]
[null,null,null,"Sommario/riassunto","In the European Union, unemployment rates differ markedly across regions, both within and across nations. This study presents a coherent theoretical approach to explain the emergence and persistence of such regional unemployment disparities. The analysis builds on the wage curve literature, and on regional agglomeration theories like the new economic geography. These theoretical strings are combined and extended, in order to provide a unified framework."]