PUMA publications for /tag/ProblemMon Mar 27 11:18:04 CEST 2023J. Evol. Equ.41129--1150Well-posedness of a quasilinear evolution problem modelling {MEMS} with general permittivity172017IADM Lienstromberg MEMS evolution modelling problem quasilinear "Subject of consideration is the analytical investigation of a coupled system of partial differential equations arising from the modelling of electrostatically actuated microelectromechanical systems with general permittivity profile. A quasilinear parabolic evolution problem for the displacement u of an elastic membrane is coupled with an elliptic free boundary value problem that determines the electrostatic potential ψ in the region between the elastic membrane and a rigid ground plate. The system is shown to be well-posed locally in time for all arbitrarily large values λ of the applied voltage, whereas small values of the applied voltage, which do not exceed a certain critical value λ∗, do even allow globally in time existing solutions. In addition, conditions are specified which force solutions emerging from a non-positive initial deflection to stay non-positive as long as they exist.''Mon Mar 27 11:18:04 CEST 2023J. Evol. Equ.41129--1150Well-posedness of a quasilinear evolution problem modelling {MEMS} with general permittivity172017Lienstromberg IADM problem from:elkepeter MEMS evolution quasilinear modelling "Subject of consideration is the analytical investigation of a coupled system of partial differential equations arising from the modelling of electrostatically actuated microelectromechanical systems with general permittivity profile. A quasilinear parabolic evolution problem for the displacement u of an elastic membrane is coupled with an elliptic free boundary value problem that determines the electrostatic potential ψ in the region between the elastic membrane and a rigid ground plate. The system is shown to be well-posed locally in time for all arbitrarily large values λ of the applied voltage, whereas small values of the applied voltage, which do not exceed a certain critical value λ∗, do even allow globally in time existing solutions. In addition, conditions are specified which force solutions emerging from a non-positive initial deflection to stay non-positive as long as they exist.''Fri Jun 24 16:58:28 CEST 2022[Place of publication not identified]Includes bibliographical references and index; Everything is getting more complex. It is easy to be overwhelmed by the amount of information we encounter each day. Whether at work, at school, or in our personal endeavors, there's a deepening (and inescapable) need for people to work with and understand information. Information architecture is the way that we arrange the parts of something to make it understandable as a whole. When we make things for others to use, the architecture of information that we choose greatly affects our ability to deliver our intended message to our users. We all face messes made of information and people. I define the word mess the same way that most dictionaries do: A situation where the interactions between people and information are confusing or full of difficulties. - Who doesn't bump up against messes made of information and people every day? This book provides a seven step process for making sense of any mess. Each chapter contains a set of lessons as well as workbook exercises architected to help you to work through your own messHow to make sense of any mess2014Information Informationsvermittlung Problem Visualisierung Wissensrepräsentation management organization resources solving Sun Jun 30 15:25:47 CEST 2019WiesbadenUnsichere Zeiten. Verhandlungen des 34. Kongresses der Deutschen Gesellschaft für Soziologie in Jena 200387-399Die Lösung als Problem12010Sowi5CK problem from:alisauhrig loesung Der Umgang mit dem Klimawandel und den drängenden Fragen nachhaltiger Energieversorgung stellt Politik und Gesellschaft vor immense Herausforderungen. Allein die Erfüllung des in der EU-Klimaagenda formulierten Ziels, die Treibhausgasemissionen der EU bis 2020 um 30 Prozent unter das Niveau von 1990, bis 2050 gar um 60 bis 80 Prozent gegenüber 1990 zu vermindern, damit die globalen Emissionen bis 2050 um 50 Prozent unter dem Niveau von 1990 liegen, erfordert einen ‚Quantensprung‘ in der Transformation der bislang bekannten Industriegesellschaften (BMU 2007).Tue Jun 25 10:27:40 CEST 2019WiesbadenUnsichere Zeiten. Verhandlungen des 34. Kongresses der Deutschen Gesellschaft für Soziologie in Jena 200387-399Die Lösung als Problem12010Sowi5CK loesung problem Der Umgang mit dem Klimawandel und den drängenden Fragen nachhaltiger Energieversorgung stellt Politik und Gesellschaft vor immense Herausforderungen. Allein die Erfüllung des in der EU-Klimaagenda formulierten Ziels, die Treibhausgasemissionen der EU bis 2020 um 30 Prozent unter das Niveau von 1990, bis 2050 gar um 60 bis 80 Prozent gegenüber 1990 zu vermindern, damit die globalen Emissionen bis 2050 um 50 Prozent unter dem Niveau von 1990 liegen, erfordert einen ‚Quantensprung‘ in der Transformation der bislang bekannten Industriegesellschaften (BMU 2007).Tue Jun 25 10:27:40 CEST 2019WiesbadenUnsichere Zeiten. Verhandlungen des 34. Kongresses der Deutschen Gesellschaft für Soziologie in Jena 200387-399Die Lösung als Problem12010problem from:alisauhrig lösung sowi5CK Det Umgang mit dem Klimawandel und den drängenden Fragen nachhaltiger Energieversorgung stellt Politik und Gesellschaft vor immense Herausforderungen. Allein die Erfüllung des in der EU-Klimaagenda formulierten Ziels, die Treibhausgasemissionen der EU bis 2020 um 30 Prozent unter das Niveau von 1990, bis 2050 gar um 60 bis 80 Prozent gegenüber 1990 zu vermindern, damit die globalen Emissionen bis 2050 um 50 Prozent unter dem Niveau von 1990 liegen, erfordert einen ‚Quantensprung‘ in der Transformation der bislang bekannten Industriegesellschaften (BMU 2007).Fri Jul 20 10:54:15 CEST 2018Math. Meth. Appl. Sci.185409--5426Persistence of undercompressive phase boundaries for isothermal Euler equations including configurational forces and surface tension392016Kreiss Kreiss�Lopatinskii? adjoint condition, energy estimate, interface, linearized liquid-vapor problem stability, symmetrizer, uniform vorlaeufig well-posedness, ProblemCommunity for tag(s) Problem