Relevant bibliographies by topics / Poröse Medien

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Poröse Medien'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Poröse Medien"

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Stoltenberg, D., D. Enke, and A. Seidel-Morgenstern. "Mesoporöse Glasmembranen als Modellsysteme zur Untersuchung der Gasdiffusion durch poröse Medien." Chemie Ingenieur Technik 82, no. 6 (April 30, 2010): 829–35. http://dx.doi.org/10.1002/cite.201000021.

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Brink, Norbert, Thomas Wehler, and Udo Werner. "Die Durchströmung von Schüttungen mit kompressiblen Medien bei überlagerter Injektion bzw. Absaugung von Masse durch poröse Wände." Chemie Ingenieur Technik 63, no. 10 (October 1991): 1022–23. http://dx.doi.org/10.1002/cite.330631015.

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Weiss, W. "Numerische Simulation von porösen Medien." ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik 80, S1 (2000): 169–72. http://dx.doi.org/10.1002/zamm.20000801343.

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Maennel, Hartmut. "Perkolationstheorie: Stochastische Modelle poröser Medien." Mathematische Semesterberichte 41, no. 2 (September 1994): 179–206. http://dx.doi.org/10.1007/bf03186509.

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Neumann, T., C. Bergins, and K. Strauß. "Mehrphasige Durchströmung kompressibler und heterogener poröser Medien." Chemie Ingenieur Technik 78, no. 6 (June 2006): 701–8. http://dx.doi.org/10.1002/cite.200500167.

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Huwe, Bernd. "Water Movement in Porous Media with Time-dependent Porosity." Zeitschrift der Deutschen Geologischen Gesellschaft 136, no. 2 (December 1, 1985): 311–19. http://dx.doi.org/10.1127/zdgg/136/1985/311.

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Hashemzadeh, Abdulmajid, and Werner-Michael Kulicke. "Degradation von Polymer-Molekülen beim Durchströmen poröser Medien." Chemie Ingenieur Technik 58, no. 4 (1986): 325–27. http://dx.doi.org/10.1002/cite.330580412.

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Keil, Frerich J. "Modellierung von heterogen-katalysierten Reaktionen in porösen Medien." Chemie Ingenieur Technik 83, no. 12 (November 11, 2011): 2188–210. http://dx.doi.org/10.1002/cite.201100158.

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Mack, S., M. A. Hussein, and T. Becker. "Numerische Modellierung der Wärme- und Stoffübertragung in porösen Medien." Chemie Ingenieur Technik 82, no. 9 (August 27, 2010): 1367. http://dx.doi.org/10.1002/cite.201050507.

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Hohenthanner, C. R., W. Kast, and H. Fröhlich. "Stationäre und instationäre Permeations- und Diffusionsmessungen in porösen Medien." Chemie Ingenieur Technik 70, no. 12 (December 1998): 1549–53. http://dx.doi.org/10.1002/cite.330701211.

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Dissertations / Theses on the topic "Poröse Medien"

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Hilbert, Michael [Verfasser]. "Simulation von Gasentladungsprozessen mit Modellen für poröse Medien / Michael Hilbert." München : Verlag Dr. Hut, 2015. http://d-nb.info/1079767959/34.

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Hilbert, Michael [Verfasser]. "Simulation von Gasentladungsprozessen mit Modellen für poröse Medien / Michael Hilbert." Braunschweig : Institut für Hochspannungstechnik und Elektrische Energieanlagen (elenia), 2014. http://d-nb.info/1231993014/34.

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Neukum, Christoph [Verfasser]. "Transport von Kolloiden durch wassergesättigte, geklüftet poröse Medien am Beispiel von synthetischem nanopartikulärem Silber / Christoph Neukum." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013. http://d-nb.info/1046650750/34.

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Blume, Michael [Verfasser], and Peter [Akademischer Betreuer] Knabner. "Identifizierung nichtlinearer Koeffizientenfunktionen des reaktiven Transports durch poröse Medien unter Verwendung rekursiver und formfreier Ansätze / Michael Blume. Betreuer: Peter Knabner." Erlangen : Universitätsbibliothek der Universität Erlangen-Nürnberg, 2012. http://d-nb.info/1021570877/34.

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Nordin, Matias, and Rosemary Knight. "The effect of surface roughness on Nuclear Magnetic Resonance relaxation." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-214392.

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Most theoretical treatments of Nuclear Magnetic Resonance (NMR) measurements of porous media assume ideal pore geometries for the pores (i.e. slabs, spheres or cylinders) with welldefined surface-to-volume ratios (S/V). This same assumption is commonly adopted for naturally occurring materials, where the pore geometry can differ substantially from these ideal shapes. In this paper the effect of the roughness of the pore surface on the T2 relaxation spectrum is studied. By homogenization of the problem using an electrostatic approach it is found that the effective surface relaxivity can increase dramatically in the presence of rough surfaces. This leads to a situation where the system responds as a pore with a smooth surface, but with significantly increased surface relaxivity. As a result the standard approach of assuming an idealized geometry with known surface to-volume and inverting the T2 relaxation spectrum to a pore size distribution is no longer valid. The effective relaxivity is found to be fairly insensitive to the shape of the roughness but strongly dependent on the width and depth of the surface geometry.
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Sun, Yuanyuan. "Water Quality Simulation with Particle Tracking Method." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-129265.

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In the numerical simulation of fluid flow and solute transport in porous media, finite element method (FEM) has long been utilized and has been proven to be efficient. In this work, an alternative approach called random walk particle tracking (RWPT) method is proposed. In this method, a finite number of particles represent the distribution of a solute mass. Each particle carries a certain fraction of the total mass and moves in the porous media according to the velocity field. The proposed RWPT model is established on a scientific software platform OpenGeoSys (OGS), which is an open source initiative for numerical simulation of thermo-hydro-mechanical-chemical (THMC) processes in porous media. The flow equation is solved using finite element method in OGS. The obtained hydraulic heads are numerically differentiated to obtain the velocity field. The particle tracking method does not solve the transport equation directly but deals with it in a physically stochastic manner by using the velocity field. Parallel computing concept is included in the model implementation to promote computational efficiency. Several benchmarks are developed for the particle tracking method in OGS to simulate solute transport in porous media and pore space. The simulation results are compared to analytical solutions and other numerical methods to test the presented method. The particle tracking method can accommodate Darcy flow as it is the main consideration in groundwater flow. Furthermore, other flow processes such as Forchheimer flow or Richards flow can be combined with as well. Two applications indicate the capability of the method to handle theoretical real-world problems. This method can be applied as a tool to elicit and discern the detailed structure of evolving contaminant plumes
Bei der numerischen Simulation von Strömung und Stofftransport in porösen Medien hat die Nutzung der Finite-Elemente-Methode (FEM) eine lange Tradition und wird sich als effizient erweisen. In dieser Arbeit wird ein alternativer Ansatz, die random walk particle tracking (RWPT) Methode vorgeschlagen. Bei diesem Verfahren stellt eine endliche Anzahl von Partikeln die Verteilung eines gelösten Stoffes dar. Jedes Teilchen trägt einen bestimmten Bruchteil der Gesamtmasse und bewegt sich in den porösen Medien gemäß des Geschwindigkeitsfeldes. Das vorgeschlagene RWPT Modell basiert auf der wissenschaftlichen Softwareplattform OpenGeoSys (OGS), die eine Open-Source-Initiative für die numerische Simulation thermo-hydro-mechanisch-chemischen (THMC) in porösen Medien darstellt. Die Strömungsgleichung wird in OGS mit der Finite-Elemente-Methode gelöst. Der Grundwasserstand wird numerisch berechnet, um das Geschwindigkeitsfeld zu erhalten. Die Partikel-Tracking-Methode löst die Transportgleichung nicht direkt, sondern befasst sich mit ihr in einer physikalisch stochastische Weise unter Nutzung des Geschwindigkeitsfeldes. Zur Berücksichtigung der Recheneffizienz ist ein Parallel Computing-Konzept in der Modell-Implementierung enthalten. Zur Simulation des Stofftransports in porösen Medien und im Porenraum wurden mehrere Benchmarks für die Partikel-Tracking-Methode in OGS entwickelt. Die Simulationsergebnisse werden mit analytischen Lösungen und andere numerische Methoden verglichen, um die Aussagefähigkeit des vorgestellten Verfahrens zu bestätigen. Mit der Partikel-Tracking-Methode kann die Darcy-Strömung gelöst werden, die das wichtigste Kriterium in der Grundwasserströmung ist. Außerdem bewältigt die Methode auch andere Strömungsprozesse, wie die Forchheimer-Strömung und die Richards-Strömung. Zwei Anwendungen zeigen die Leistungsfähigkeit der Methode bei der prinzipiellen Handhabung von Problemen der realen Welt. Die Methode kann als ein Instrument zur Aufdeckung Erkennung der detaillierte Struktur von sich entwickelnden Schadstofffahnenangewendet werden
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Sarua, Andrei. "Untersuchungen optischer Eigenschaften von porösen Strukturen auf der Basis von III-V-Halbleiterverbindungen." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola&quot, 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-5184793.

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In der Arbeit wurden sowohl optische, als auch Schwingungs- und Struktur-Eigenschaften poröser Strukturen auf der Basis von n-GaP, n-GaAs und n-InP mit Hilfe der Raman- und FTIR- Spektroskopie untersucht. Speziell den in polaren Materialien auftretenden Fröhlich-Moden wurde dabei besondere Aufmerksamkeit gewidmet. Es wurden experimentelle Ergebnisse theoretischen Modellen auf der Basis der Effektiven Medien Theorie gegenübergestellt. Die Ergebnisse sollen helfen, Grundkenntnisse über die Eigenschaften poröser Halbleiterstrukturen zu gewinnen, um zum einen Anwendungsmöglichkeiten zu erschließen und zum anderen das theoretische Modell zur Beschreibung heterogener Medien zu vervollkommnen.
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Vijay, Dig. "Forced convective heat transfer through open cell foams." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2017. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-226330.

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The purpose of this study is to investigate forced convection of air through open cell foams. It can be numerically investigated either by implementing the time efficient macroscopic models or computationally expensive microscopic models. However, during the course of this study, it was observed that the macroscopic models are not sufficient for determining the desired key parameters. Nevertheless, it is still possible that these macroscopic models can be used to design an application accurately with minimum time efforts if the concerned key parameters are already known through other means. Accordingly, in this work, a methodology is developed to determine the desired key parameters by implementing the microscopic models, which are further used into the macroscopic models for designing different applications. To validate the proposed methodology, a set of steady state and transient forced convection experiments were performed for a set of ceramic foams having different pore diameter (10−30 PPI) and porosity (0.79−0.87) for a superficial velocity in the range of 0.5−10 m/s.
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Leichsenring, Peter, and Thomas Wallmersperger. "Time-dependent chemo-electromechanical behavior of hydrogelbased structures." SPIE, 2018. https://tud.qucosa.de/id/qucosa%3A35174.

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Charged hydrogels are ionic polymer gels and belong to the class of smart materials. These gels are multiphasic materials which consist of a solid phase, a fluid phase and an ionic phase. Due to the presence of bound charges these materials are stimuli-responsive to electrical or chemical loads. The application of electrical or chemical stimuli as well as mechanical loads lead to a viscoelastic response. On the macroscopic scale, the response is governed by a local reversible release or absorption of water which, in turn, leads to a local decrease or increase of mass and a respective volume change. Furthermore, the chemo-electro-mechanical equilibrium of a hydrogel depends on the chemical composition of the gel and the surrounding solution bath. Due to the presence of bound charges in the hydrogel, this system can be understood as an osmotic cell where differences in the concentration of mobile ions in the gel and solution domain lead to an osmotic pressure difference. In the present work, a continuum-based numerical model is presented in order to describe the time-dependent swelling behavior of hydrogels. The numerical model is based on the Theory of Porous Media and captures the fluid-solid, fluid-ion and ion-ion interactions. As a direct consequence of the chemo-electro-mechanical equilibrium, the corresponding boundary conditions are defined following the equilibrium conditions. For the interaction of the hydrogel with surrounding mechanical structures, also respective jump condtions are formulated. Finaly, numerical results of the time-dependent behavior of a hydrogel-based chemo-sensor will be presented.
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Leichsenring, Peter, and Thomas Wallmersperger. "Modeling and simulation of transport phenomena in ionic gels." SPIE, 2015. https://tud.qucosa.de/id/qucosa%3A35028.

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Ionic hydrogels belong to the class of polyelectrolyte gels or ionic gels. Their ability to swell or shrink under different environmental conditions such as change of pH, ion concentration or temperature make them promising materials, e.g. for microsensoric or microactuatoric devices. The hydrogel swelling exhibits nonlinear effects due to the occurrence of different interacting transport phenomena. Numerical simulations are an essential part in the ongoing development of microsensors and microactuators. In order to determine transport effects due to diffusion, migration and convection a multiphase mesoscale model based on the Theory of Porous Media is applied. The governing field equations are solved in the transient regime by applying the Finite Element Method. By means of the derived numerical framework a detailed investigation of the different transport phenomena is carried out. Numerical experiments are performed to characterize the dominating transfer phenomena for ionic gels under chemical stimulation.
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Books on the topic "Poröse Medien"

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Olaya Garcerá, Jorge Eliécer, Carlos Fajardo Guevara, Cruz Prado Rojas, Edinson Delgado Martínez, Luis Alberto Piña Lobos, Leonardo Alonso Iribarren Castro, Mercedes Sanabria Jiménez, et al. Lenguajeando mediación pedagógica. Editorial Universidad Santiago de Cali, 2020. http://dx.doi.org/10.35985/9789585583634.

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Si lo titulado anteriormente debiera ubicarse dentro de lo que la metodología tradicional considera como un ‘Resumen’, a continuación va entonces lo que en clave podría referirse sobre las ‘Palabras Clave’: brotes porque es lo que surge de las tierras, enacción quizá en el mejor sentido inglés de ‘to enact’, y rizomas en razón de los nacientes tejidos. Anotando al respecto que, si bien Deleuze (2005) acuñó el término en Francia en medio de sus referentes biológicos, es aquí en nuestra denominada Latinoamérica donde los rizomas los hemos ‘platanizado’. Porque aquí los hemos vivenciado y encontrado, hurgando con los dedos entre la tierra. A veces árida y en espera de las gotas de lluvia.
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Tazzara, Corey. Introduction. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198791584.003.0001.

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Tuscany of the mid-seventeenth century was renowned for its luxury crafts and had one of the most vibrant scientific communities in Europe. The Medici family presided over a state whose political stability astonished contemporaries, in which wise rule and good fortune had spared their subjects the worst ravages associated with the Thirty Years' War. The city of Livorno was the Medici state’s greatest prize and the most innovative port in Italy. The introduction examines the development of Livorno and other free ports in three registers: as part of the Italian response to the rise of the Atlantic world; as implicated in the creation of a new kind of commodity market; and as a neglected problem in the history of economic thought. It suggests that free ports should be central to our interpretation of economic change in early modern Europe and the Mediterranean.
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Ortiz, Pilar, Elizabeth Corral, Raymundo Marin Colorado, Ilinca Ilian, Alina Țiței, Bojana Kovačević Petrović, Mercédesz Kutasy, et al. Carlos Fuentes y los horizontes de la traducción literaria. Edited by Norma Angélica Cuevas Velasco and RIcardo Corzo Ramírez. Universidad Veracruzana, 2020. http://dx.doi.org/10.25009/uv.2284.1515.

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Este libro nace como producto de las actividades académicas, de difusión y de vinculación de la Cátedra Interamericana Carlos Fuentes, que surgió en la Universidad Veracruzana a partir de la necesidad de seguir construyendo plataformas para el análisis, la reflexión, la divulgación de la cultura y la creación literaria. Dentro de este espacio, la traducción se impuso como un problema teórico y un ejercicio profesional, partiendo de la idea de que el trabajo del traductor va de la mano con el de la creación en sus múltiples posibilidades. Es, al mismo tiempo, un homenaje a Carlos Fuentes y a sus traductores: homenaje a Fuentes porque el hilo conductor de los artículos recopilados es el estudio de las traducciones de sus obras a diversas lenguas, por ejemplo, al inglés, francés, rumano, serbio o húngaro; homenaje a los traductores de Fuentes porque él nunca estuvo al margen de las implicaciones en el trabajo de aquellos, a veces supervisando y a veces reescribiendo su obra en la medida en que las dificultades de la traducción se lo exigieran.
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Panella, Claudio, and Guillermo Korn, eds. Ideas y debates para la nueva Argentina. Ediciones de Periodismo y Comunicación (EPC), 2019. http://dx.doi.org/10.35537/10915/80987.

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Doce artículos componen este libro. Con ellos, Ideas y debates para la Nueva Argentina completa su cuarto y último volumen. Este aporte, que comenzó once años atrás, completa así el análisis de medio centenar de publicaciones periódicas, culturales y políticas afines al gobierno peronista, editadas entre 1946 y 1955. Creemos que esta búsqueda por archivos, hemerotecas y bibliotecas públicas y privadas no ha sido en vano. Porque aunque sabemos que el mapa no es completo, también entendemos que la pretensión de este trabajo colectivo no ha sido –nunca puede serlo- la totalidad, sino ampliar el horizonte de análisis, contribuir al estudio de las publicaciones periódicas, enriquecido en las últimas décadas, y rebatir ciertas simplificaciones pregonadas con éxito por bastante tiempo sobre la relación entre peronismo y cultura.
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Crespi, John A. Beyond Satire. Edited by Carlos Rojas and Andrea Bachner. Oxford University Press, 2016. http://dx.doi.org/10.1093/oxfordhb/9780199383313.013.11.

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Zhang Guangyu’s illustrated taleJourney to the West in Cartoons(1945) has been described as a colorful, whimsical, but also trenchant lampoon of bankrupt politics and society under Nationalist rule at the close of the War of Resistance against Japan.Journeyis indeed a masterful example of satire, but it is also a remarkable work ofmanhua, a genre of verbal-visual art often referred to as “cartoon” that flourished in China’s treaty ports in the first half of the twentieth century. This chapter proposes that when viewed in conversation with the history of China’smanhua, Zhang’s fanciful allegory describes a symbiosis betweenmanhuaand the popular print genre of the pictorial magazine, the medium in whichmanhuathrived during the interwar years.
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Sepúlveda, Jovanny. Derecho, filosofía y sociedad. CUA - Medellin, 2020. http://dx.doi.org/10.52441/der202002.

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Cuando recordamos la definición aristotélica del hombre, que lo señala como zoon politikón, nos viene a la mente la concepción del hombre como un ser que es capaz de estar con otros en medio de una sociedad diversa (polis) con derechos y deberes. Tanto para Platón como para el Estagirita, las relaciones de los hombres en sociedad deben estar regidas por principios para que el bien común se preserve y la vida de todos sea llevadera, además de considerar que se requiere de un gobierno que los administre. Platón consideraba que la mejor forma de gobierno sería la proveniente del gobernante sabio y el Estagirita pensaba que solo los mejores hombres deberían ser quienes gobernasen. Que Platón propusiera el gobierno del sabio era una clara evidencia de la sospecha de vicios que surgirían en otro sistema del que seríamos herederos: la democracia. Ahora bien, no se trata aquí de la concepción de sabiduría depositada en la seguridad de un acervo de información adquirido por erudición y estudio académico. En Aristóteles, heredado de su maestro Platón, el sentido de la política estará vinculado a la idea de la virtud. Y si entendemos la virtud como la tendencia a obrar el bien (en tanto que disposición voluntaria adquirida para lograr el punto medio entre dos extremos viciosos), descubrimos una relación inextricable entre el gobierno de la polis y el actuar con los demás. Es bien interesante que proponga que es el hombre virtuoso el que gobierne y ejerza el derecho porque, en definitiva, la imparcialidad, la justicia y la verdad preceden al hombre que obra con medida y prudencia (phrónesis). Conviene recordar que el Estagirita clasifica las virtudes en dos grupos: las dianoéticas (que perfeccionan el intelecto: la sabiduría y la prudencia) y las éticas1 (que perfeccionan la voluntad). No debemos dejar de lado, después de anunciar esta estrecha relación entre ética y política presente en el pensamiento griego antiguo, que para Aristóteles el fin del hombre es la felicidad. Suena raro, en un ambiente laboral, económico, social y político como en el que vivimos hoy que se nos proponga que el único fin valedero de nuestras vidas sea lograr la felicidad. Aunque la traducción no es del todo justa, una ética de la eudaimonía implica superar los esquemas que nos proponen que se vive para triunfar y adquirir fama, para enriquecernos o experimentar todos los placeres posibles… Si hay algo de lo que nos damos cuenta constantemente, sobre todo desde la experiencia de limitación y de precariedad del hombre, es que nos gastamos una buena parte de nuestras vidas en cosas que no nos llevan a vivir bien. Tenemos y hacemos muchas cosas innecesarias, cosas que tornan cosas a los que deberían ser más importantes y vitales en nuestra experiencia vital (vida política y vida ética cotidiana). Pero fue la Modernidad, de la mano del pensamiento de Emmanuel Kant −en gran medida−, la que prefiguró el divorcio de esta estrecha relación. Así, el deber por el deber hizo surgir una escisión entre la ética y la política, lo que ha significado la aparición de interpretaciones acomodadas de asuntos tan importantes como la ley, los principios, los derechos, por solo mencionar algunos. Los efectos de una hermenéutica acomodada e interesada han provocado vicios en la ley que son delatados por los juristas y filósofos del derecho que reconocen la necesidad de develar la mentira que se oculta tras verdades a medias. Urge hoy una reflexión de este carácter, que nos recuerde el derecho y que actualice su vigencia para una sociedad que requiere justicia y verdad.
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Serrano, Juan. Contra el poder. Alberto Donadío y el periodismo de investigación. Sílaba Editores y Ediciones Uniandes, 2019. http://dx.doi.org/10.51566/ceper2117_30.

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“Este es un libro que cumple con todo lo que se propone. Estaba haciendo falta en las librerías, en las mesas de noche, en los salones de clase. En Colombia son escasos los volúmenes sobre periodismo, pero son doblemente escasas las biografías que de paso cuentan el país. Este retrato preciso es ambas cosas: una serie de lecciones sobre periodismo y sobre periodismo investigativo, pero asimismo la biografía de un hombre —premiado con el Simón Bolívar a su vida y su obra— que ha visto crecer con sus propios ojos la bola de nieve de la corrupción en los tiempos en los que el oficio ha estado tratando de sacudirse el poder. Y es una verdadera rareza entre nuestras publicaciones no solo porque tiene adentro los testimonios de todos los implicados, sino porque sabe, en el momento justo, que reivindicar a Alberto Donadío es reivindicar las promesas de la democracia.” Ricardo Silva Romero “Este libro resulta sorprendentemente útil para descubrir —precisamente hoy en medio del desconcierto de la era digital—que el periodismo que se apega a su labor esencial de servir al público es capaz de sobrevivir el temporal tecnológico. La manera en que Donadío y otros de sus colegas del primer equipo investigativo de un diario en Colombia, la unidad investigativa de El Tiempo, han ejercido su labor contiene los elementos de lo que perdurará en el periodismo y esboza el futuro de lo que este será cuando muchas estructuras que hoy lo alojan se hayan derrumbado.” María Teresa Ronderos
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Arias, Ricardo, and Fernando Purcell, eds. Trascendiendo fronteras Circulaciones y espacialidades en torno al mundo americano. Universidad de los Andes, 2020. http://dx.doi.org/10.30778/2019.105.

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Este libro busca contribuir al debate historiográfico en torno a las circulaciones y conexiones en el espacio americano. Si bien las tradiciones historiográficas latinoamericanas, en su afán por legitimar a las nuevas repúblicas, han resaltado la importancia de “la nación”, es evidente que la historia de cada país nunca ha estado desvinculada de lo que acontece más allá de sus límites. Trascendiendo fronteras. Circulaciones y espacialidades en torno al mundo americano rescata el lado poroso de las fronteras, resalta las conexiones y circulaciones de personas, objetos, ideas, gustos, entre otros, que, lejos de permanecer confinados dentro de los contornos nacionales, son movedizos, se desplazan entre distintos espacios de lo que hoy concebimos como América Latina, incluso llegando más allá de la esfera continental. En la medida en que hoy el planeta parece más conectado que nunca, los científicos sociales no deben olvidar que sus objetos de estudio se hallan insertos en unas escalas espaciales más amplias y más fluidas que las locales o nacionales.
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Delmas, Flavia Marina, ed. Comunicación y política en clave feminista. Editorial de la Universidad Nacional de La Plata (EDULP), 2020. http://dx.doi.org/10.35537/10915/94017.

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En este libro nos proponemos revisar la planificación de políticas de comunicación desde una epistemología feminista. Para ello analizamos los protocolos que se implementan en universidades públicas y las políticas llevadas adelante por la Defensoría del Público. Indagamos la producción de sentidos sexistas de los medios de comunicación. Revisamos la apropiación de las tecnologías, usos y accesos teniendo en cuenta el género. Abordamos los enfoques de planificación comunicacional, situándonos desde un punto de vista que interpela lo aprendido de manera crítica y decolonial, revisando en profundidad nuestras prácticas profesionales, dando cuenta de que no es posible el fortalecimiento de la organización comunitaria si no partimos de las nociones, experiencias y conocimientos que albergan las personas con las que trabajamos. La redacción de un proyecto será entonces la enunciación de un deseo a futuro, un deseo posible no carente de errores, porque —como en toda trama social— lo que prima es la contingencia.
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Johannes, Fabian. El tiempo y el otro. Cómo construye su objeto la antropología. Universidad de los Andes, 2019. http://dx.doi.org/10.30778/2018.53.

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Este no es un libro sobre la escritura etnográfica. Tampoco es una crítica epistemológica radical. Mejor, no es solamente eso. Es mucho más. Fabian es uno de los pocos antropólogos que buscó entender, a fondo, por qué la antropología fue sindicada de ser cómplice de la colonialidad, en vez de simplemente desmarcarse de los síntomas visibles de esa relación. Los argumentos de Fabian provocaron una conmoción porque mostraron que la antropología construye un sujeto (el Otro del Estado-nación y, ahora, de la post-nación) y un lugar temporal para ese sujeto, negándole su existencia en el tiempo de la modernidad (lo que llamó alocronismo) y, por lo tanto, localizándolo en las partes más bajas (premodernas, primitivas, salvajes, tribales) de la escalera evolutiva. Para que el Otro (distante en el tiempo y el espacio) pudiese ser medido e intervenido por el tiempo moderno (teleológico, direccional, progresivo) fue localizado en un tiempo-lugar lejano: de esta manera la distancia apareció como un prerrequisito del proyecto civilizador. En esa tarea, que Fabian describe en este libro portentoso, la antropología tuvo una participación decisiva.
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Book chapters on the topic "Poröse Medien"

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Strybny, Jann. "Poröse Medien, Grundwasser." In Ohne Panik Strömungsmechanik!, 207–24. Wiesbaden: Vieweg+Teubner Verlag, 2005. http://dx.doi.org/10.1007/978-3-322-96902-6_9.

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Strybny, Jann. "Poröse Medien, Grundwasser." In Ohne Panik Strömungsmechanik!, 189–206. Wiesbaden: Vieweg+Teubner Verlag, 2003. http://dx.doi.org/10.1007/978-3-663-11947-0_9.

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Strybny, Jann. "Poröse Medien, Grundwasser." In Ohne Panik Strömungsmechanik!, 215–32. Wiesbaden: Vieweg+Teubner, 2010. http://dx.doi.org/10.1007/978-3-8348-9339-0_7.

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Strybny, Jann. "Poröse Medien, Grundwasser." In Ohne Panik Strömungsmechanik!, 203–20. Wiesbaden: Vieweg+Teubner Verlag, 2011. http://dx.doi.org/10.1007/978-3-8348-8341-4_7.

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Schweizer, Ben. "Stationäre poröse Medien Gleichungen." In Partielle Differentialgleichungen, 345–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40638-6_18.

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Heinemann, Ekkehard, and Rainer Feldhaus. "Strömung durch poröse Medien, Grundwasserströmung." In Hydraulik für Bauingenieure, 171–224. Wiesbaden: Vieweg+Teubner Verlag, 2003. http://dx.doi.org/10.1007/978-3-663-01596-3_5.

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Heinemann, Ekkehard, and Runo Paul. "Strömung durch poröse Medien, Grundwasserströmung." In Hydraulik für Bauingenieure, 191–229. Wiesbaden: Vieweg+Teubner Verlag, 1998. http://dx.doi.org/10.1007/978-3-322-92792-7_5.

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Schweizer, Ben. "Stationäre porӧse Medien Gleichungen." In Partielle Differentialgleichungen, 335–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-56668-8_18.

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Holzbecher, Ekkehard. "Strömungen in porösen Medien." In Modellierung dynamischer Prozesse in der Hydrologie, 25–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-61073-8_2.

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Wittum, G., Ch Wagner, R. Fritsche, and H. P. Haar. "Diffusions-Reaktionsprobleme in ungesättigten porösen Medien." In Mathematik Schlüsseltechnologie für die Zukunft, 243–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60550-5_21.

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Conference papers on the topic "Poröse Medien"

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Shahraeeni, Mehdi, and Mina Hoorfar. "Effect of PTFE Loading on the Performance of the GDL in Water Removal." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33081.

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Pore network modeling is a relatively new approach for simulation of fluid flows in porous media of the fuel cells. The porous media is simulated with a network of pores connected to each other through throats. The radius of the pores and throats, the length of the throats and other geometric specifications of the network is extracted with respect to the tomography of the porous media under study. The flow of the fluid though the network is then studied using simplified Navier-Stokes equation (usually Darcy’s law). In this paper, a pore-network approach is adopted in order to study the motion of liquid water inside GDL of PEM fuel cells. The effect of wettability of the medium is examined on the movement of water droplets inside the GDL.
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Dahifale, Balasaheb S., Ramkumar N. Parthasarathy, and Subramanyam R. Gollahalli. "Experimental Investigation of Porous-Media Combustion Characteristics of Biodiesel Blends." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37527.

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The use of porous-media burners in air-heating systems, gas turbine combustors, and steam generators is a potential method to reduce pollutant emission levels. Biofuels, such as canola methyl ester (CME), are an attractive alternate energy resource; however, pure biofuels have lower energy content than petroleum-based fuels. Therefore, the combustion characteristics of blends of Jet A and CME were studied in a porous-media burner. Two silicon carbide coated carbon-carbon matrix porous media of square section were used. The upstream porous medium with a pore size of 8 pores per centimeter (20 pores per inch) served as the evaporation porous medium; the downstream porous medium with a pore size of 31 ppcm (80 ppi) was used as the combustion porous medium. The CME-Jet A fuel blends were injected from an air-blast atomizer into a coflow of hot air, which entered the evaporation porous medium. The combustion characteristics of three blends (volume percentages of CME equal to 25%, 50% and 75%) were studied at four different initial equivalence ratios. The global pollutant emissions, axial temperature profiles and the radiative heat fraction of the flame downstream of the combustion porous medium were measured. The results indicated that for lean air-fuel mixtures, the addition of CME to Jet A resulted in a reduction of the CO emission index. However, the NOx emission index was increased with the CME content in the blend for a given equivalence ratio. Also, the maximum flame temperature increased with equivalence ratio. In general, it was found that the porous-media burner was useful in reducing emissions and controlling flame temperatures.
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Shahraeeni, Mehdi, and Mina Hoorfar. "A Pore-Network Model for Capillary-Driven Flows Inside Porous Media." In ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icnmm2012-73060.

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A pore-network model is adopted to simulate fluid flow in porous media. The model is examined for two different hydrophobic loadings. A new algorithm for displacing the fluid inside the porous medium is developed. The algorithm uses an effective pressure as a combination of capillary pressure and hydrodynamic pressure. The capillary pressure is a function of pore size distribution and the wettability characteristics of the medium while the hydrodynamic pressure is correlated to the local saturation of the pores. Thus, the algorithm automatically switches between the capillary driven and the viscous displacement mechanisms based on the value of the local capillary number. The results are compared with the available experimental and numerical data.
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Giorges, Aklilu T. G., and John A. Pierson. "Modeling and CFD Simulation of Membrane Flow Process." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53530.

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In the processing industries several membrane technologies are used to separate and concentrate various fluid stream where the concentrate or/filtrate has high value products. Nevertheless, pore blocking is one of the major factors determining the applicability, efficiency and performance of the membrane filtration and separation system. Inside and outside membrane pore blockage leads to concentration polarization and cake buildup that reduces the flux rate and increases losses in system efficiency. Several experimental and theoretical works exist that describe the pore flow and blocking process. However, a limited amount of published work integrates the pore blocking with computational fluid dynamics (CFD). The change in the fluid stream and membrane characteristics during the process are the major challenges in CFD modeling. This paper presents the initial simulations of two-dimensional CFD models that directly model the actual micro pore flow and the porous medium flow (Darcy flow). Various pressure and pore sizes (porosity and permeability) were simulated. For the first model, pore flow model, simplified two-dimensional micro pores were modeled and the continuity and Navier-Stokes equations were solved in all regions including pores. Appling various inlet pressures, the velocity and pressure in all fluid regions are simulated. In second model, the membrane region is modeled as porous medium and the flow field is simulated by using porous medium characteristics. The porous medium characteristics, porosity and permeability, were estimated from pore flow average outlet velocity. The result indicates that both models with equivalent values can be used to predict the overall flow fields. However, both models have to overcome challenges to be widely used. With the direct pore flow (pores flow) simulation, mesh generation becomes a challenge since the membrane pores are very small as compared to the inlet and outlet regions. The pore flow simulation results indicate that CFD can be used to understand the membrane flow characteristics and fluid mechanics. It also can be used to design and / or select a membrane system. For the simulation of membrane as porous medium, the detail of flow through the porous medium including the inlet and outlet effects becomes obscured. However, the system overall performance can be simulated using CFD model for porous medium.
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Fomin, Sergei, Vladimir Chugunov, and Toshiyuki Hashida. "Derivation of Fractional Differential Equations for Modeling Diffusion in Porous Media of Fractal Geometry." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68499.

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Utilizing the double-porosity approach it is assumed that porous medium is constituted by two groups of pores in such way that major mass transport takes place mostly along the network of larger pores (group 1) and these larger (stem) pores are surrounded by the medium formed by the dead-end porous of fractal geometry (group 2). Solving analytically equation for the stem pore from the group 1 and accounting for the mass exchange with pores from the group 2, it is proved that diffusion in a stem pore should be described by the fractional differential equation. Based on this result, equation of mass flux that models non-Fickian diffusion in complex fractal medium is proposed. Applying this generalized form of mass transfer equation for modeling the contaminant transport in fractured porous aquifer leads to a fractional order differential equation, where mass exchange between blocks and fractures is modeled by the temporal fractional derivatives. This equation is solved analytically.
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Trifale, Ninad, Kazuaki Yazawa, and Eric Nauman. "Modelling of Effective Thermal Conductance of Metal Foam Contact Thermal Interfaces." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64132.

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We present a modeling study of the effective thermal conductance of metal foams as a thermal interface focusing on the electronics cooling applications. Metal foam material as a porous media has been considered for several applications because of its significantly large surface area for a given volume. In the electronics cooling, aluminum porous heat sinks have been well studied. It is not only cost effective due to the unique production process, but also attractive for the theoretical modeling study to determine the performance. In the past studies, effective thermal conductivity for heat transfer through solid with the tetrahedral geometry, while the pores, assumed to have vacant volumes, has been modeled. Instead of allowing the refrigerant flow through the connected pores in the porous medium, we considered the vacant space filled with stationary air. The major transport of the heat is considered to flow through the solid bridges, which connect the onside to the other side directly. Thus, the porous density for our application shall be relatively lower than the best value for heat sink applications. It must, however, be in a specific range such that it is mechanically compliant to make proper contact to both, the cooling target surface and the heat sink surface. It is obvious that the smaller pore ratio makes the metal foam stiffer. We model the contact thermal performance with considering the mechanical stiffness as a function of pore ratio as well as an intrinsic thermal conductance across the metal foam. Due to the limited literature of the variation of the pore size, we present the first order analysis assuming a fixed and uniform pore size.
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Bahraseman, Hamidreza Ghasemi, and Ehsan Mohseni Languri. "Numerical Modeling of Liquid-to-Vapor Phase Change in Porous Medium Under Solar Heat Localization." In ASME 2016 Power Conference collocated with the ASME 2016 10th International Conference on Energy Sustainability and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/power2016-59259.

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Evaporation process is a crucial part of many fundamental industrials and medicals process. This paper numerically model a novel method of steam generation and enhanced evaporation using solar thermal energy. In this model, a capillary-raised fluid flows through a porous medium under localized heating condition, and the phase change from liquid to vapor at the liquid-vapor interface occurs. The hydrophilic porous material facilitates the capillary forces for better transportation of the bulk water through the porous media to the surface of porous media where the absorbed solar energy deliver to the amount of water inside the pores. The high capillary force due to the micro size inter connected pores inside the medium will rise the fluid from the cold bulk reservoir and the highly concentrated solar radiation focused inside the medium will evaporates the liquid very effectively. Based on this approach, the absorbed solar energy is delivered into the specific small pores of porous media that initiate the localized evaporation process. The steam generated from this economical technique could be used greatly for thermal solar desalinations process, sterilization process, etc. A CAD model of such porous media was developed using SolidWorks package. The mesh will be generated on the CAD file and the model was imported into the ANSYS Fluent for solving the governing equations. The mass transfer along with the fluid flow and heat transfer then solved. The simulations were done under different conditions including the hour distribution of irradiation in an average summer day and winter day to estimate steam generation rate. Produced vapor were from 13.96 kg/m2 to 18.95 kg/m2 in typical summer and winter days, respectively. The results show a temperature changes between 26.9°C and 54.4 °C. Development of the 3D numerical model and its implementation in existing data facilitates better understanding of the transport phenomena through the porous media.
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Braun, Matt, and Laurent Pilon. "Effective Optical Properties of Nanoporous Silicon." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72643.

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Nanoporous materials consist of nanosize voids embedded in a solid matrix. The pores can be closed or open and have various shapes and sizes. Their applications range from optical and optoelectronics devices to biosensors. In order to effectively utilize and characterize nanoporous media for these various applications, models that describe their effective optical properties are necessary. Numerous effective medium models have been proposed. However, validations of these models against experimental data are often contradictory and inconclusive. This issue was numerically investigated by solving the two-dimensional Maxwell’s equations in absorbing nanoporous silicon thin-films. All interfaces are assumed to be optically smooth and characteristic pore size is much smaller than the wavelength of incident radiation so electromagnetic wave scattering by pores can be safely neglected. The envelope method was then used to retrieve the effective index of refraction and absorption index from the computed transmittance. The numerical results agree very well for both the index of refraction and the absorption index with a recent model obtained by applying the Volume Averaging Theory (VAT) to the Maxwell’s equations. However, commonly used models such as the Maxwell-Garnett, Bruggeman, parallel, and series models systematically and sometimes significantly underpredict the numerical results.
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Prasher, Ravi, and David Song. "Microscopic Effective Medium Model for Thermal Conductivity of Two Dimensional Nano-Porous and Micro-Porous Media." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72115.

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Two-dimensional Nano-porous (NP) and micro-porous (MP) materials are currently used in a variety of applications which require the knowledge of the thermal conductivity (k). In NP and MP materials, two pertinent length scales determine the phonon thermal conductivity: 1) the ratio of inter-pore distance, δ, and the mean free path (m.f.p.) of phonons, 1, 2) the ratio of the pore diameter, d, and the m.f.p. of phonons. This is schematically shown in Fig. 1. In the traditional diffusion-approximation (macroscopic models) based models (1 ≪ d, δ) for the thermal conductivity of porous materials, the effective thermal conductivity, keff, of the porous material for a given shape of the pores and direction of the heat flow is only a function of the volume fraction (φ) of the pores. Therefore, in the diffusion approximation, keff can be written as keff=kmf(φ)(1) where km is the thermal conductivity of the host medium. Our focus is on cylindrical pores. We only consider the heat flow in the transverse direction as shown in Fig. 1a. For example, if φ <40%, Maxwell-Garnett effective medium model (MG EMM) can be used. f(φ) for MG EMM is given by f(φ)=1−φ1+φ(2) Experimental data on two-dimensional micro-porous silicon made of cylindrical pores have shown that the macroscopic model given by Eq. (1) grossly over predicts keff of the porous materials. In MP and NP materials, the phonon transport is ballistic in nature because of the dominant scattering of phonons from the pore boundaries. Ballistic transport becomes dominant when m.f.p is comparable to or larger than d and δ. In this regime, the Boltzmann Transport Equation (BTE) must be solved without invoking the diffusion approximation. Solving the BTE for such a complex network of pores is a challenging task, and a few previous works exist where BTE was solved numerically under various simplifying assumptions regarding the geometry and the arrangement of the pores. Both of these investigations assumed rectangular pores for two-dimensional composite or cubical pores for three-dimensional composites; however, in reality, these pores are never so simple in their geometry. Typically, these pores are cylindrical in shape for two-dimensional composites and nearly spherical in shape for three-dimensional composites. The solution of BTE for the multitude of non-planar pores, although achievable, will be a very tedious task.
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Zhang, Haipeng, Tomer Palmon, Seunghee Kim, and Sangjin Ryu. "Fabrication of a Microchannel Device With a Three-Dimensional Pore Network Using a Sacrificial Sugar Template." In ASME 2020 Fluids Engineering Division Summer Meeting collocated with the ASME 2020 Heat Transfer Summer Conference and the ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fedsm2020-20356.

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Abstract Porous media compressed air energy storage (PM-CAES) is an emerging technology that stores compressed air in an underground aquifer during the off-peak periods, to mitigate the mismatch between energy supplies and demands. Thus, PM-CAES involves repeated two-phase fluid flow in porous media, and ensuring the success of PM-CAES requires a better understanding of repetitive two-phase fluid flow through porous media. For this purpose, we previously developed microfluidic channels that retain a two-dimensional (2D) pore network. Because it was found that the geometry of the pore structure significantly affects the patterns and occupational efficiencies of a non-wetting fluid during the drainage-imbibition cycles, a more realistic microfluidic model is needed to reflect the three-dimensional (3D) nature of pore structures in the underground geologic formation. In this study, we developed an easy-to-adopt method to fabricate a microfluidic device with a 3D random pore network using a sacrificial sugar template. Instead of using a master mold made in photolithography, a sacrificial mold was made using sugar grains so that the mold could be washed away after PDMS curing. First, we made sugar templates with different levels of compaction load, and found that the thickness of the templates decreased as the compaction load increased, which suggests more packing of sugar grains and thus lower porosity in the template. Second, we fabricated PDMS porous media using the sugar template as a mold, and imaged their pore structure using micro computed tomography (micro-CT). Pores within PDSM samples appeared more tightly packed as the compacting force increased. Last, we fabricated a prototype PDMS channel device with a 3D pore network using a sugar template, and visualized flow through the pore network using colored water. The flow visualization result shows that the water was guided by the random pores and that the resultant flow pattern was three dimensional.
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Reports on the topic "Poröse Medien"

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Liu, Min. Reactive transport in porous media: A pore-scale perspective. Office of Scientific and Technical Information (OSTI), August 2019. http://dx.doi.org/10.2172/1558947.

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Lu, Chuan, and Y. C. Yortsos. A Pore-Network Model of In-Situ Combustion in Porous Media. Office of Scientific and Technical Information (OSTI), January 2001. http://dx.doi.org/10.2172/773827.

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Xu, Baomin, and Y. C. Yortsos. Capillary effects in drainage in heterogeneous porous media: Continuum modeling, experiments and pore network simulations. Office of Scientific and Technical Information (OSTI), April 1993. http://dx.doi.org/10.2172/10149983.

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Webb, S. W. Pore-scale modeling of transient and steady-state vapor diffusion in partially-saturated porous media. Office of Scientific and Technical Information (OSTI), May 1998. http://dx.doi.org/10.2172/658277.

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Xu, Baomin, and Y. C. Yortsos. Capillary effects in drainage in heterogeneous porous media: Continuum modeling, experiments and pore network simulations. Office of Scientific and Technical Information (OSTI), April 1993. http://dx.doi.org/10.2172/6863814.

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Yortsos, Yanic C., A. G. Yiotis, A. K. Stubos, and A. G. Boundovis. A 2-D Pore-Network Model of the Drying of Single-Component Liquids in Porous Media. Office of Scientific and Technical Information (OSTI), January 2000. http://dx.doi.org/10.2172/750286.

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Poirier, M. R. Recommendation for Using Smaller (0.1 micro sign) Pore-Size Media for Filtration in Salt Waste Processing Project. Office of Scientific and Technical Information (OSTI), May 2003. http://dx.doi.org/10.2172/810554.

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Maroñas, Cecilia, Nicolás Rezzano, and Marcello Basani. El saneamiento urbano en Montevideo: 40 años de logros y lecciones aprendidas hacia un servicio adecuado y universal. Inter-American Development Bank, May 2021. http://dx.doi.org/10.18235/0003281.

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Un elemento clave para evitar repetir los errores y avanzar hacia un futuro mejor consiste en aprender de la propia experiencia. En ese sentido, todos lo acontecido durante los casi 40 años de arduo trabajo en el desarrollo del sistema de saneamiento y drenaje de Montevideo contiene conocimientos prácticos muy valiosos. Extraer lecciones de tales vivencias permite aprovechar el camino transitado y mejorar el desempeño de los futuros proyectos que se desarrollen en la región. Esto es así, en gran medida, porque la ejecución ininterrumpida de las distintas etapas del Plan de Saneamiento Urbano de Montevideo lo han convertido en un caso de éxito sin precedentes a nivel latinoamericano. En este trabajo se identifican cuatro grandes grupos de lecciones aprendidas, vinculados con: (i) aspectos de carácter institucional, (ii) aspectos relativos al sistema financiero-comercial, (iii) aspectos relacionados con la ejecución de los proyectos que formaron y forman parte del PSU, y (iv) aspectos de carácter social y comunicacional.
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Gwo, J. P., P. M. Jardine, G. T. Yeh, and G. V. Wilson. Murt user`s guide: A hybrid Lagrangian-Eulerian finite element model of multiple-pore-region solute transport through subsurface media. Office of Scientific and Technical Information (OSTI), April 1995. http://dx.doi.org/10.2172/92060.

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Montagut Cifuentes, Eduardo Alejandro, Robinson Fidel Casanova Rosero, Julián Mauricio Betancourt Portela, Juan Alberto Patiño Martínez, Cabrera Luna Edgard Enrico, and Blanco García José Luis. Anuario Científico CCCP 1984 - 2000. Direccion General Maritima - DIMAR, December 2000. http://dx.doi.org/10.26640/anuario.cccp-2000.

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Manejo integral de la zona costera aplicado al ordenamiento territorial del municipio de Tumaco. // Análisis de algunas características físico-químicas registradas en las aguas estuarinas de la Ensenada de Tumaco. // Variación espacio-temporal del zooplancton en la Ensenada de Tumaco, Pacífico colombiano. // Investigación oceanográfica conjunta en la Región Pacífica Sudeste y su proyección. La Dirección General Marítima a través de sus dos Centros de Investigación localizados en Cartagena y Tumaco, desarrolla investigación científica marina con una tradición de más de dos décadas y aportes sign ificativos al conocimiento descriptivo de las aguas oceánicas del Caribe y del Pacífico, a sus litorales y zonas costeras. Es tal vez esta materia en la que mayores resultados tangibles se han obtenidoen los últimos años, no solamente al existir una tradición y experiencia ampliamente reconocidas nacional e internacionalmente, sino porque contamos con un recurso humano idóneo, cal ificado, tanto a bordo de las unidades oceanográficas como en tierra y con un extraordinario sentido de pertenencia. Considerando que las plataformas de investigación son esenciales para el fortalecimiento de la capacidad operativa e investigativa de la Armada Nacional y la Dirección General Marítima, se desarrol la desde 1999, el proyecto de reparaciones mayores de los buques oceanográficos ARC Malpelo y ARC Providencia, que debe terminar en el 2001. La Agenda para la Colombia del siglo XXI , publicada por COLCI ENCIAS, nos indica que se han promulgado los planes estratégicos preparados en los siete programas Nacionales de Innovación y Desarrollo Tecnológico. En este contexto la Dirección General Marítima formuló su Agenda Científica que identificó cuatro Programas para ser desarrol lados en el período 2000-2010: Oceanografía Operacional , Protección del Medio Marino, Zona Costera e Hidrografía. La estrategias regionales de ciencia y tecnología cobran entonces, especial relevancia. Es en el espacio regional, y en el de las necesidades locales, que se puede buscar una más clara articulación entre los programas nacionales y los requerimientos de desarrollo del país. Con el lema: Colombia dos Mares, una Patria , el presente Anuario Científico, en su primera edición pretende consolidar en un solo volumen, resultados de investigaciones adelantadas en los dos Centros y que por lo tanto ameritan su divulgación y difusión, dentro de la estrategia institucional de comunicación para dar a conocer los avances de la investigación desarrollada, así como la toma de conciencia sobre el problema ambiental, la degradación de la zona costera y su situación particular de riesgo en la región del Pacífico, el rol principal de los océanos y el clima, la explotación de recursos oceánicos vivos y no vivos y la necesidad de sostenibil idad en su utilización.
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