Libros de ingeniería, página 24 de 989

El objetivo de la aerodinámica civil es la estimación de las cargas aerodinámicas (fuerzas y momentos) que genera el flujo del aire alrededor de los cuerpos inmersos en la capa límite terrestre. Pa

EL USO E IMPLEMENTACIÓN DE INDICADORES AMBIENTALES EN EL SECTOR DE LA CONSTRUCCIÓN ESTÁN FUERTEMENTE INFLUENCIADOS POR ALGUNAS PECULIARIDADES COMO POR EJEMPLO, LA DISPERSIÓN GEOGRÁFICA, LA HETEROGENEIDAD DE SUS ACTIVIDADES, LA AUSENCIA DE CONTROL SOBRE EL DISEÑO DEL PROYECTO A EJECUTAR EL ALTO PORCENTAJE DE ACTIVIDADES SUBCONTRATADAS....

Fatigue of the pressurized fuselages of transport aircraft is a significant problem all builders and users of aircraft have to cope with for reasons associated with assuring a sufficient lifetime and safety, and formulating adequate inspection procedures. These aspects are all addressed in various formal protocols for creating and maintaining airworthiness, including damage tolerance considerations. In most transport aircraft, fatigue occurs in lap joints, sometimes leading to circumstances that threaten safety in critical ways. The problem of fatigue of lap joints has been considerably enlarged by the goal of extending aircraft lifetimes. Fatigue of riveted lap joints between aluminium alloy sheets, typical of the pressurized aircraft fuselage, is the major topic of the present book. The richly illustrated and well-structured chapters treat subjects such as: structural design solutions and loading conditions for fuselage skin joints; relevance of laboratory test results for simple lap joint specimens to riveted joints in a real structure; effect of various production and design related variables on the riveted joint fatigue behaviour; analytical and experimental results on load transmission in mechanically fastened lap joints; theoretical and experimental analysis of secondary bending and its implications for riveted joint fatigue performance; nucleation and shape development of fatigue cracks in riveted longitudinal lap joints; overview of experimental investigations into the multi-site damage for full scale fuselage panels and riveted lap joint specimens; fatigue crack growth and fatigue life prediction methodology for riveted lap joints; residual strength predictions for riveted lap joints in a fuselage structure. The major issues of each chapter are recapitulated in the last section.

Engineers solve problems,ÿand work onÿemerging challenges inÿa wide range of areas important to improving quality of life; areas likeÿsustainable energy, access to clean water, andÿimproved communications and health care technologies.ÿ Kosky et. al. explore the world of engineering by introducing the reader to what engineers do, the fundamental principles that form the basis of their work, and how they apply that knowledgeÿwithin a structured design process.ÿÿThe three part organization of the text reinforces theseÿareas, making this an ideal introduction for anyone interested in exploring the various fields of engineering and learning how engineers work to solve problems.

This monograph and translation from the Russian describes in detail and comments on the fundamentals of metrology. The basic concepts of metrology, the principles of the International System of Units SI, the theory of measurement uncertainty, the new methodology of estimation of measurement accuracy on the basis of the uncertainty concept, as well as the methods for processing measurement results and estimating their uncertainty are discussed from the modern position. It is shown that the uncertainty concept is compatible with the classical theory of accuracy. The theory of random uncertainties is supplemented with their most general description on the basis of generalized normal distribution; the instrumental systematic errors are presented in connection with the methodology of normalization of the metrological characteristics of measuring instruments. The information about modern systems of traceability is given. All discussed theoretical principles and calculation methods are illustrated with examples.

This book addresses the various risks associated with the transport of dangerous goods within a territory. The emphasis of the contributions is on methods and tools to reduce the vulnerability of both the environment and human society to accidents or malicious acts involving such transport. With topics ranging from game theory to governance principles, the authors together cover technical, legal, financial, and logistic aspects of this problem. The intended audience includes responsible persons in territorial organizations, managers of transport infrastructures, as well as students, teachers and researchers wishing to deepen their knowledge in this area.

Reliability is one of the most important quality characteristics of components, products, and large and complex systems-but it takes a significant amount of time and resources to bring reliability to fruition. Thoroughly classroom- and industry-tested, this book helps ensure that engineers see reliability success with every product they design, test, and manufacture. Divided into three parts, Reliability Engineering, Second Edition handily describes the theories and their practical uses while presenting readers with real-world examples and problems to solve. Part I focuses on system reliability estimation for time independent and failure dependent models, helping engineers create a reliable design. Part II aids the reader in assembling necessary components and configuring them to achieve desired reliability objectives, conducting reliability tests on components, and using field data from similar components. Part III follows what happens once a product is produced and sold, how the manufacturer must ensure its reliability objectives by providing preventive and scheduled maintenance and warranty policies. This Second Edition includes in-depth and enhanced chapter coverage of: Reliability and Hazard Functions System Reliability Evaluation Time- and Failure-Dependent Reliability Estimation Methods of the Parameters of Failure-Time Distributions Parametric Reliability Models Models for Accelerated Life Testing Renewal Processes and Expected Number of Failures Preventive Maintenance and Inspection Warranty Models Case Studies A comprehensive reference for practitioners and professionals in quality and reliability engineering, Reliability Engineering can also be used for senior undergraduate or graduate courses in industrial and systems, mechanical, and electrical engineering programs.

There is increasing interest in the potential of UAV (Unmanned Aerial Vehicle) and MAV (Micro Air Vehicle) technology and their wide ranging applications including defence missions, reconnaissance and surveillance, border patrol, disaster zone assessment and atmospheric research. High investment levels from the military sector globally is driving research and development and increasing the viability of autonomous platforms as replacements for the remotely piloted vehicles more commonly in use. UAV/UAS pose a number of new challenges, with the autonomy and in particular collision avoidance, detect and avoid, or sense and avoid, as the most challenging one, involving both regulatory and technical issues. Sense and Avoid in UAS: Research and Applications covers the problem of detect, sense and avoid in UAS (Unmanned Aircraft Systems) in depth and combines the theoretical and application results by leading academics and researchers from industry and academia. Key features: Presents a holistic view of the sense and avoid problem in the wider application of autonomous systems Includes information on human factors, regulatory issues and navigation, control, aerodynamics and physics aspects of the sense and avoid problem in UAS Provides professional, scientific and reliable content that is easy to understand, and Includes contributions from leading engineers and researchers in the field Sense and Avoid in UAS: Research and Applications is an invaluable source of original and specialised information. It acts as a reference manual for practising engineers and advanced theoretical researchers and also forms a useful resource for younger engineers and postgraduate students. With its credible sources and thorough review process, Sense and Avoid in UAS: Research and Applications provides a reliable source of information in an area that is fast expanding but scarcely covered.

Environmental awareness is driven mainly by the scarcity of natural resources and by more strict legal regulations. The modern enterprise policy should look at the relations between economic actions and ecological consequences. Ecoproduction is a new business approach which focuses on the most efficient and productive use of raw materials and natural resources in order to minimize footprints on the natural environment. This book aims to provide the state- of- the- art as well as new ideas of the environmental conscious operations management. The contributors present in the individual chapters problems related to: eco-friendly production technologies; recycling and waste reduction. Scope of topics discussed in this book covers also pollution prevention, energy efficiency. The authors describe problems of information management in complex systems

To survive and thrive in the competition, firms have strived to achieve greater supply chain collaboration to leverage the resources and knowledge of suppliers and customers. Internet based technologies, particularly interorganizational systems, further extend the firms'' opportunities to strengthen their supply chain partnerships and share real-time information to optimize their operations. "Supply Chain Collaboration: Roles of Interorganizational Systems, Trust, and Collaborative Culture" explores the nature and characteristics, antecedents, and consequences of supply chain collaboration from multiple theoretical perspectives. "Supply Chain Collaboration: Roles of Interorganizational Systems, Trust, and Collaborative Culture" conceptualizes supply chain collaboration as seven interconnecting elements including information sharing, incentive alignment, goal congruence, decision synchronization, resource sharing, as well as communication and joint knowledge creation. These seven components define the occurrence of collaborative efforts and allow us to explain supply chain collaboration more precisely. Collaborative advantages are also divided into five components to capture the joint competitive advantages and benefits among supply chain partners. The definitions and measures developed here examine some central issue surrounding supply chain development but this is also followed up with real-life managerial practicalities. This balance of theory and practical application makes "Supply Chain Collaboration: Roles of Interorganizational Systems, Trust, and Collaborative Culture" a strong resource for industry practitioners and researchers alike.

El tratado de Procedimientos generales de Construcción tiene por objeto el estudio de las reglas técnicas y métodos de trabajo que condicionan la ejecución de las obras públicas. Este Tratado está también estrechamente relacionado con los cursos de Derecho administrativo y exige, de una parte, el estudio y la redacción de los proyectos, y de obra la preparación de presupuestos y liquidaciones, algunas de las cuales toman a veces un carácter contencioso.

Real decreto 842/2002, de 2 de agosto, por el que se aprueba el reglamento electrotécnico para baja tensión

La estratégica ubicación de Zaragoza dentro de la península ibérica, como punto de enlace entre la meseta y las regiones mediterráneas y pirenaicas ha permitido -primeramente con los aeródromos (Valdespartera, Sanjurjo y Valenzuela) y posteriormente con la construccion del aeropuerto- que su desarrollo haya estado intimamente ligado a la aviacion como nudo de comunicaciones con el resto de la nacion. Muchos han sido los avatares, no exentos de anecdotas, que desde los inicios de la aviacion, alla por el año 1910, han acontecido en la historia de su aeropuerto, siempre tan ligada a la de su base aerea. Su crecimiento ha sido pausado, pero continuo, centrado fundamentalmente en sus conexiones con Barcelona y Madrid. Poco a poco con el establecimiento de nuevas compañias aereas, el impulso economico que supuso para toda la region la ubicacion en Zaragoza de la Exposicion Internacional de 2008 y el desarrollo del transporte de mercancias por via aerea, han hecho que el futuro de este aeropuerto pueda verse con optimismo, gracias al apoyo y a la apuesta de Aena por esta infraestructura, asi como por el impulso que todas las autoridades y los ciudadanos de esta comunidad le prestan como importante motor economico de toda la region. El libro recoge toda una historia plagada de imagenes entrañables y datos interesantes que, sin duda, resultara de gran interes no solo para los amantes de la aviacion, sino tambien para todos los zaragozanos, ya que finalmente constituye una cronica de su propio devenir desde principios del pasado siglo a la actualidad.

This book embarks on a contemporary analysis of the interaction of economics and law relating to air transport, delving into the major issues that plague the industry. It shows how some of the thorny and frustrating issues could be approached sensibly. Among the issues discussed are the anomaly of exponential growth of air transport which makes airline profitability continue to be poor; the legislative impediments in most countries that preclude direct foreign investment in the industry; the confounding and muddled mess behind the economics of aircraft engine emissions; and the inexplicable reality that, although civil aviation is primarily meant to meet the needs of the people of the world, State regulators have upended the equation and given priority to national interests over the interests of the passenger. The book will be of interest to economists and lawyers alike who deal with air transport issues, and also to academics and students in the area of transportation as well as regulators and airlines. Show More Show Less

El presente libro trata sobre las turbinas de gas y los turbocompresores. Son estos dos elementos fundamentales para el desarrollo de un país o comunidad y ningún país podrá llamarse de primera fila si no atiende adecuadamente a estas materias tanto en su vertiente de fabricacion como en la de mantenimiento. Ademas de contener las bases teoricas que permiten el dominio sobre turbinas de gas el libro trata tambien a las tecnologias y materiales utilizados a lo largo del tiempo hasta llegar a los mas modernos. No se olvidan las tecnicas operativas y de mantenimiento que distinguen la correcta conservacion de estos aparatos a lo largo de su vida util ni la importancia de los quemadores y los combustibles, asi como su efecto sobre la contaminacion atmosferica. Gregorio Gil Garcia (gregilgar@yahoo.com)es Ingeniero Industrial por la Escuela de Ingenieros Industriales de San Sebastian (Univ. de Navarra y Doctor en Ingenieria Industrial por la Universidad Politecnica de Madrid). Posee una amplia experiencia en el campo de la construccion, en especial, en el campo nuclear asi como en el mundo de la organizacion e informatizacion de empresas y sociedades, calidad industrial incluida la Calidad Total y energia. Imparte master en diversas Universidades y Organizaciones sobre estas materias. En estos momentos ejerce tambien como consultor. Es autor tambien de los libros 'La energia en cifras' y 'Energias del siglo XXI'.

Going "green" is becoming a major component of the mission for electronics manufacturers worldwide. While this goal seems simplistic, it poses daunting dilemmas. Yet, to compete effectively in the global economy, manufacturers must take the initiative to drive this crucial movement. Green Electronics Manufacturing: Creating Environmental Sensible Products provides you with a complete reference to design, develop, build, and install an electronic product with special consideration for the product''s environmental impacts during its whole life cycle. The author discusses how to integrate the state-of-the-art technologies of finite element method (FEM) modeling, simulation, and testing to create environmental sensible products of satisfying global environmental regulations, such as Restriction of Hazardous Substances (ROHS) compliance. He covers enabling techniques such as advanced fatigue life modeling, crack propagation analysis, and probabilistic robust design of lead-free electronics. The book also explores risk engineering methodology empowers practitioners with effective tools such as buckling analysis of tin whiskers. With its emphasis on reducing parts, rationing materials, and reusing components to make products more efficient to build, green electronics intertwines today''s electronics with manufacturing strategies of global sourcing, concurrent engineering, and total quality. Implemented through product and process design, it can help you achieve sustainability to support future generations and at the same time preserve our natural resources. Green Electronics Manufacturing: Creating Environmental Sensible Products gives you the tools to create environmental sensible products while maintaining electronics quality and reliability.