Guía práctica de elementos finitos en estática


Book Description

El Método de los Elementos Finitos (MEF) es sin duda una de las herramientas más utilizadas actualmente en el ámbito del análisis y diseño de sistemas mecánicos. Permite validar y optimizar diseños de forma rápida y versátil, reduciendo la necesidad de costosas campañas experimentales y ofreciendo al diseñador información muy valiosa sobre el comportamiento del sistema y la influencia que tienen en él aspectos como la geometría, el material, la naturaleza de las cargas, etc. Basado en la extensa experiencia de los autores tanto docente como investigadora y en trabajos para empresas, este libro muestra cómo emplear el método para estudiar problemas reales de diseño mecánico. Con un enfoque teórico-práctico, está dirigido a alumnos del Grado de Ingeniería Mecánica o del Grado de Ingeniería en Tecnologías Industriales con el objetivo de dotarles de las nociones básicas teóricas y prácticas a la hora de afrontar un análisis mecánico mediante este método. La guía se ha dividido en dos partes claramente diferenciadas: En la primera parte se explican los conceptos básicos del MEF, siempre desde un punto de vista eminentemente práctico y con numerosos ejemplos ilustrativos. En la segunda parte se presenta una serie de ejemplos de aplicación de análisis por Elementos Finitos de distintos sistemas mecánicos: rodamientos, rótulas, implantes dentales, uniones atornilladas, etc. Para cada caso se describe cuál el problema que debe resolverse y se explican las características del modelo que se ha desarrollado para lograr los resultados requeridos. Sobre la base de los conceptos presentados en la primera parte del libro, en cada ejemplo se discute sobre si el modelo debe ser tridimensional o bidimensional, qué tipo de elemento habrá que utilizar y cómo será la malla, cómo se aplicarán las cargas y las condiciones de contorno, si bastará con hacer un análisis lineal o será necesario uno no lineal, cuál será el nivel de precisión de los resultados según el modelo empleado y la naturaleza propia del problema. El fin de esta guía práctica es precisamente dotar al futuro analista de Elementos Finitos de los conocimientos necesarios para que sea capaz de desarrollar el mejor modelo para dar respuesta a un problema particular.




Without Criteria


Book Description

A Deleuzian reading of Whitehead and a Whiteheadian reading of Deleuze open the possibility of a critical aesthetics of contemporary culture. In Without Criteria, Steven Shaviro proposes and explores a philosophical fantasy: imagine a world in which Alfred North Whitehead takes the place of Martin Heidegger. What if Whitehead, instead of Heidegger, had set the agenda for postmodern thought? Heidegger asks, “Why is there something, rather than nothing?” Whitehead asks, “How is it that there is always something new?” In a world where everything from popular music to DNA is being sampled and recombined, argues Shaviro, Whitehead's question is the truly urgent one. Without Criteria is Shaviro's experiment in rethinking postmodern theory, especially the theory of aesthetics, from a point of view that hearkens back to Whitehead rather than Heidegger. In working through the ideas of Whitehead and Deleuze, Shaviro also appeals to Kant, arguing that certain aspects of Kant's thought pave the way for the philosophical “constructivism” embraced by both Whitehead and Deleuze. Kant, Whitehead, and Deleuze are not commonly grouped together, but the juxtaposition of them in Without Criteria helps to shed light on a variety of issues that are of concern to contemporary art and media practices.




BioGeomancer


Book Description




Endoscopy in Neuro-otology


Book Description

Endoscopy is firmly established as a major technology for investigation and therapy in a wide range of disciplines. The field of otolaryngology or head and neck surgery owes its existence to the very special difficulties of examining the dark recesses of the head and neck. Therefore, this field has been at the forefront of developing endoscopic techniques for use in this anatomic area. While rhinologists have been quick to embrace the endoscope in the management of sinus disorders, otologists and skull base surgeons have been less than enthusiastic despite the vast range of possible applications in this area. In this book the authors consider the new field of application of endoscope technology in neuro-otology and skull base surgery. Dr. Sanna is part of The Grupppo Otologico, a world-renowned specialist center for the diagnosis and medical and surgical treatment of diseases of the ear, skull base, facial nerve, head and neck, and paranasal sinuses.




Soil and Sediment Remediation


Book Description

Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.




Cloud Computing, Big Data & Emerging Topics


Book Description

This book constitutes the revised selected papers of the 9th International Conference on Cloud Computing, Big Data & Emerging Topics, JCC-BD&ET 2021, held in La Plata, Argentina*, in June 2021. The 12 full papers and 2 short papers presented were carefully reviewed and selected from a total of 37 submissions. The papers are organized in topical sections on parallel and distributed computing; machine and deep learning; big data; web and mobile computing; visualization.. *The conference was held virtually due to the COVID-19 pandemic.




Limit Analysis and Concrete Plasticity


Book Description

First published in 1984, Limit Analysis and Concrete Plasticity explains for advanced design engineers the principles of plasticity theory and its application to the design of reinforced and prestressed concrete structures, providing a thorough understanding of the subject, rather than simply applying current design formulas. Updated and revised th




Manga High


Book Description

Based on a four-year study, Manga High explores the convergence of literacy, creativity, social development, and personal identity in one of New York City’s largest high schools. Since 2004, students at Martin Luther King, Jr., High School in Manhattan have been creating manga—Japanese comic books. They write the stories, design the characters, and publish their works in print and on the Internet. These students—African-American and Latino teenagers—are more than interested in the art and medium of manga. They have become completely engrossed in Japanese language, culture, and society. Manga High is highlighted by reproductions and content analysis of students’ original art and writing. An appendix includes guidelines for educators on starting a comic book club.




Environmental Transport Processes


Book Description

A unique approach to the challenges of complex environmental systems Environmental Transport Processes, Second Edition provides much-needed guidance on mass transfer principles in environmental engineering. It focuses on working with uncontrolled conditions involving biological and physical systems, offering examples from diverse fields, including mass transport, kinetics, wastewater treatment, and unit processes. This new edition is fully revised and updated, incorporating modern approaches and practice problems at the end of chapters, making the Second Edition more concise, accessible, and easy to use. The book discusses the fundamentals of transport processes occurring in natural environments, with special emphasis on working at the biological physical interface. It considers transport and kinetics in terms of systems that involve microorganisms, along with in-depth coverage of particles, size spectra, and calculations for particles that can be considered either spheres or fractals. The book's treatment of particles as fractals is especially unique and the Second Edition includes a new section on exoelectrogenic biofilms. It also addresses dispersion in natural and engineered systems unlike any other book on the subject. Readers will learn to tackle with confidence complex environmental systems and make transport calculations in heterogeneous environments with mixtures of chemicals.