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[null,"1.","Record Nr.",null,"UNINA9910557400803321"]
[null,null,"Autore",null,"Böttcher Anke"]
[null,null,"Titolo",null,"Study of an alternative phase field model for low interfacial energy in elastic solids / Anke Böttcher"]
[null,null,"Pubbl/distr/stampa",null,"Berlin, : Logos Verlag Berlin, 2021"]
[{"$nulls":4},"[s.l.] : , : Logos Verlag Berlin, , 2021"]
[null,null,"Descrizione fisica",null,"1 online resource (152 p.)"]
[null,null,"Soggetti",null,"Science / Chemistry"]
[{"$nulls":4},"Science / Physics"]
[{"$nulls":4},"Mathematics"]
[{"$nulls":4},"Science"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Sommario/riassunto","In 2005, the hybrid model was published by Prof. H.-D. Alber and Prof. P. Zhu as an alternative to the Allen-Cahn model for the description of phase field transformations. With low interfacial energy, it is more efficient, since the resolution of the diffuse interface is numerically broader for the same solution accuracy and allows coarser meshing. The solutions of both models are associated with energy minimisation and in this work the error terms introduced in the earlier publications are discussed and documented using one and two dimensional numerical simulations.  In the last part of this book, phase field problems, initially not coupled with material equations, are combined with linear elasticity and, after simple introductory examples, a growing martensitic inclusion is simulated and compared with literature data. In addition to the confirmed numerical advantage, another phenomenon not previously described in the literature is found: with the hybrid model, in contrast to the examples calculated with the Allen-Cahn model, an inclusion driven mainly by curvature energy does not disappear completely.  The opposite problem prevents inclusions from growing from very small initial configurations, but this fact can be remedied by a very finely chosen diffuse interface width and by analysing and adjusting the terms that generate the modelling errors. The last example shows that the hybrid model can be used with "]
[{"$nulls":4},"numerical advantages despite the above mentioned peculiarities."]
[null,"2.","Record Nr.",null,"UNINA9910155162103321"]
[null,null,"Autore",null,"Nga Ndongo"]
[null,null,"Titolo",null,"Problematique De La Renaissance En Afrique: Le Continent Noir Face Au Defi De L'imperieuse Emergence"]
[null,null,"Pubbl/distr/stampa",null,"Editions L'Harmattan"]
[null,null,"ISBN",null,"2-14-001879-6"]
[null,null,"Descrizione fisica",null,"1 online resource (256 p.)"]
[null,null,"Collana",null,"Sociologie africaine"]
[null,null,"Soggetti",null,"Economic development - International cooperation"]
[{"$nulls":4},"Economic policy"]
[{"$nulls":4},"Globalization - Social aspects"]
[{"$nulls":4},"Nation-state and globalization"]
[{"$nulls":4},"Social conditions"]
[{"$nulls":4},"Social policy"]
[{"$nulls":4},"Africa, Sub-Saharan Social conditions 21st century"]
[{"$nulls":4},"Africa, Sub-Saharan Economic conditions 21st century"]
[{"$nulls":4},"Africa, Sub-Saharan Social policy"]
[{"$nulls":4},"Africa, Sub-Saharan Economic policy"]
[{"$nulls":4},"Sub-Saharan Africa"]
[null,null,"Lingua di pubblicazione",null,"Francese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,"Nota di contenuto",null,"; 1e partie. La renaissance africaine : nécessité et urgence. L'Afrique et le retour aux racines, pour son devenir face à la mondialisation / Alain Roger Pegha -- L'émergence de l'Afrique : l'impératif d'un ajustement scientifique, politique et socioculturel / Ngadjifna -- La protestation politique au Cameroun : entre mentalité coloniale, conflit et résistance des minorités actives. Essai d'une lecture psychosociale de l'aspiration à la renaissance camerounaise / Germain Fabrice Menye Nga -- Une refonte du logiciel mental comme préalable au réel essor de l'Afrique / Étienne Songa Bidjocka -- Mentalités, renaissance et développement en Afrique noire / Valentin Nga Ndongo -- Distorsions cognitives et problématique de l'émergence d'une personnalité positive au Cameroun / Joachen Banindjel -- Les associations de développement à l'heure des objectifs du développement durable. Entre quête de visibilité, pouvoir et argent, et ripostes à la crise en contexte de renaissance / Élias Perrier Ngueulieu, Fernand Guevara Mekongo Mballa -- L'éducation de "]
[{"$nulls":4},"la femme dans la société traditionnelle béti du Cameroun face aux défis de la modernité / Alice Yolande Nsong, --"]
[{"$nulls":4},"; 2e partie. La renaissance africaine : mythes et réalités. Pour un développement local autocentré, à l'aune de l'émergence / Munne Batet Boteteme, Chantal Kamole Moukoko -- Élite urbaine : modes d'appropriation et de gestion de l'espace en milieu rural africain / Solange Rachel Essomba Ebela -- Professionnalisation à l'ère du LMD et développement de l'Afrique noire : une analyse à partir des établissements d'enseignement supérieur au Cameroun / Daniel Houli -- Sens et signification des communications dans une problématique de pays émergent : pour une contribution partielle et constructive au développement social / Munne Batet Boteteme -- Émergence de nouvelles formes de profession et incidences sociales en milieu urbain : le cas de l'activité de moto-taxi à Yaoundé / Jean Roger Onah -- The place of national languages in an emerging country : case-study in Cameroon / Mbu Martha Njui -- Voyage au pays natal. Une lecture des Puces de Valentin Nga Ndongo / Vincent Manuel Afana Nga -- Démesure et émergence ou l'esthétique du chaos en contexte postcolonial. Analyse sociopoétique de Le Christ selon l'Afrique de Calixthe Beyala / Isidore Bikoko."]
[null,null,null,"Sommario/riassunto","L'Afrique noire fait actuellement face a un defi majeur : la croissance et le developpement dans toutes ses dimensions. Mais pour y parvenir elle doit passer, a l'instar de l'Europe ou du Sud-Ouest asiatique, par la condition  sine qua non  de la renaissance. Les presentes analyses et reflexions, pluridisciplinaires, demontrent le role de la science, en particulier de la  science sociale , selon le mot de Durkheim, dans cette emergence. Ces considerations insistent sur l'importance des sciences humaines en Afrique noire et se penchent sur certaines experiences locales, porteuses de renaissance."]