Search results for "Ernst"
showing 10 items of 91 documents
A finite-difference method for numerical solution of the steady-state nernst—planck equations with non-zero convection and electric current density
1986
Abstract A computer algorithm has been developed for digital simulation of ionic transport through membranes obeying the Nernst—Planck and Poisson equations. The method of computation is quite general and allows the treatment of steady-state electrodiffusion equations for multiionic environments, the ionic species having arbitrary valences and mobilities, when convection and electric current are involved. The procedure provides a great flexibility in the choice of suitable boundary conditions and avoids numerical instabilities which are so frequent in numerical methods. Numerical results for concentration and electric potential gradient profiles are presented in the particular case of the t…
Diffusion and Migration
2003
The sections in this article are Introduction Fundamental Concepts Diffusion–migration Flux Equations Poisson Equation and the LEN Assumption Continuity Equation Ohm's Law and Migrational Transport Numbers Diffusion-conduction Flux Equation Diffusion Boundary Layer Faraday's Law and Integral Transport Numbers Nernst Equation and Concentration Overpotential Steady State Current–voltage Curves of Systems with One Active Species Integration of the Transport Equations Solutions of Homovalent Ions, |zi | =z Binary Electrolyte Solutions Ternary Electrolyte Solutions. The Supporting Electrolyte Weak Binary Electrolyte Steady State Current–overpotential Curves in the Presence of Supporting Electrol…
Experimental and Numerical Simulations of Flow and Heat Transfer in Heat Exchanger Elements Using Liquid Crystal Thermography
2004
Experimental and numerical investigation of heat transfer and fluid flow were conducted for classic heat exchanger elements (flat plate with fin-tubes in-line, staggered and with vortex generators) and corrugated-undulated ducts under transitional and weakly turbulent conditions. The dependence of average heat transfer and pressure drop on Reynolds number and geometrical parameters was investigated. Distributions of local heat transfer coefficient were obtained by using liquid crystal thermography and surface-averaged values were computed. Three-dimensional numerical simulations were conducted by a finite-volume method using a low-Reynolds number k-e model under the assumption of fully deve…
Chumy Chúmez. Una biografía. Autoficción, testimonio y homenajes
2016
En 1973 el dibujante y humorista Chumy Chúmez publicó la novela gráfica, Chumy Chúmez. Una biografía. A partir de la técnica del collage, recupera grabados del siglo XIX y brinda un explícito homenaje a sus grandes ilustradores. La obra, escrita en los años finales del régimen franquista, requiere ser analizada en el contexto político de su producción, pero también en el sistema literario y artístico de los años 70. De ambas coordenadas surge un relato gráfico que mediante la fragmentación, la elipsis y la sugerencia, interna al lector en el clima moral de la dictadura. Al mismo tiempo revela indicios inequívocos de un cambio de ciclo, histórico y estético. In 1973 the cartoonist and humori…
Guerra y humanidad en los fotolibros Das Antlitz des Weltkrieges y Hier Spricht der Feind de Ernst Jünger
2001
Discusión acerca de las concepciones pacifistas a raíz del punto de vista de E. Jünger tal como se expresa en dos de los fotolibros de los que fue editor literario, Das Antlitz des Weltkrieges y Hier Spricht der Feind
Guerra y humanidad: a propósito de "Das Antlitz des Weltkrieges" y "Hier Spricht der Feind" de Ernst Jünger
2002
Discusión acerca de las concepciones pacifistas a raíz del punto de vista de E. Jünger tal como se expresa en dos de los fotolibros de los que fue editor literario, Das Antlitz des Weltkrieges y Hier Spricht der Feind
Il "Candide" da Voltaire e Bernstein
2015
Il saggio ricostruisce la genesi del "Candide" di Leonard Bernstein, e la storia delle sue tante stesure e riprese: dal primo progetto teatrale del 1953-54 sino cosiddetta "Scottish Opera Version, curata da John Mauceri, del 1988. Il percorso drammaturgico dello spettacolo viene messo a confronto con le narrazioni del romanzo di Voltaire e nella seconda parte del saggio vengono affrontati anche gli aspetti musicali e compositivi dell'opera.
Rojo sangre, gris de máquina. Ernst Jünger y la inscripción técnica de un mundo peligroso
2005
Se analizan los dos foto-libros que E. Jünger confeccionó al final de la República de Weimar, El Mundo Transformado (1933) y El Instante Peligroso (1931). Para ello se compara su concepción de las relaciones entre fotografía y literatura -como formas de inscripción de la experiencia vital y política- con la de W. Benjamin, inscribiéndose ambos en el contexto de los debates entre La Nueva Visión y La Nueva Objetividad y otros de los que participaron en dicha polémica en Alemania a partir de 1925, como Thomas Mann, Döblin, Brecht, Tucholsky o Sigfried Kracauer. En el mismo sentido, se analiza la concordancia del punto de vista de E. Jünger con sus concepciones meta-políticas y antropológicas,…
Der Spur auf der Spur. Sur les traces de la trace
2016
Hinter dem scheinbar einfachen lexikalischen Gewand der »Spur« verbirgt sich eine überraschende Komplexität: Was ist eigentlich eine Spur? Was sind ihre typischen Merkmale? Wodurch unterscheidet sie sich von Abdruck, Zeichen und Indiz? Die Beiträge des vorliegenden Bandes reflektieren den Spurbegriff aus deutsch-französischer sowie aus interdisziplinärer Perspektive. Zu Wort kommen Philosophie, Literatur, Geschichte, Archäologie, Kunstgeschichte, Urbanistik, Kulturwissenschaft und Psychoanalyse.
Valori perduti e perduta libertà. Croce e il dibattito tedesco sulla relatività dei valori
2017
The relativism of values (Werterelativismus) is a problem very central for the historicism debate, which concerned historians and phi- losophers at the beginning of the twentieth century. The historization of all knowledge and all values leads to their historical devaluation. How can values still be formulated and maintained in face of this relativization? This was the question of theorists such as Otto Hintze, Friedrich Meinecke, Max Weber and Ernst Troeltsch, as well as of the philosopher Benedetto Croce in times of emerging Fascism, that was regarded as a political and moral threat. As representatives of an intellectual and social liberalism, these academics developed their own strategie…