PRECISE METHODS FOR ESTIMATING PAVEMENT CLASSIFICATION NUMBER
Author: William W. Jenkinson, Manager, Airport Technology | Size: 1.8 MB | Format:PDF | Publisher: BOEING | Year: 1998 | pages: 137
This document presents methods that can be used by an airport authority to determine Pavement Classification Numbers for both flexible and rigid pavements. The techniques that are recommended are based on the ICAO ACN/PCN method as published in Annex 14. This includes simplified procedures based on using aircraft, as well as a more complex technical analysis that embody pavement characteristics and the traffic mix. The comprehensive methods described in this document are presented in a step-by-step approach, and many examples are included to help explain the processes. Discussion of aircraft loading in excess of the published PCN is based on an extension of the basic ICAO ACN/PCN method of pavement overloading. These procedures will allow the airport authority to assess the impact of individual aircraft overloads, as well as continuous overloading by a fleet of aircraft. Methods are presented that can be used to convert common rating systems such as FAA, LCN, and LCG to a PCN. A complete description of the ACN/PCN procedure as presented in the ICAO Annex 14 is provided.
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Despite traffic circles, four-way stop signs, lights regulated by timers or sensors, and other methods, the management of urban intersections remains problematic. Consider that transportation systems have all the features of so-called complex systems: the great number of state and control variables, the presence of uncertainty and indeterminism, the complex interactions between subsystems, the necessity to optimize several optimization criteria, and active behavior of the controlled process, to name just a few. Therefore, a mathematical approach to these systems can resolve their complex issues more elegantly than other methods.
Addressing both efficiency and traffic safety issues, Optimal Traffic Control: Urban Intersections examines the traffic control optimization problem and presents a novel solution method. Using an approach based on control theory, graph theory, and combinatorial optimization, the authors derive a full mathematical description of the traffic control problem and enumerate all combinatorial aspects. The result is a set of algorithmic solutions to various problems along with computer implementation that you can incorporate into real traffic control systems for immediate results. The book concludes by evaluating how the choice of a complete set of signal groups influences intersection performance.
Although modern cities throughout the world have a unique character influenced by culture, geography, and population, most of them share one main feature: busy intersections and the issue of controlling the traffic traveling through them. The development of information technologies, especially computer and telecommunications techniques, has changed the complexity of the problem and influenced the development of new solutions. Clearly stating the issues and presenting a possible solution, this book shows you how to take full advantage of all the capabilities of microprocessor-based traffic signal controllers.
About the Author
Institute MIHAILO PUPIN, Belgrade, Serbia Institute MIHAILO PUPIN, Belgrade, Serbia Institute MIHAILO PUPIN, Belgrade, Serbia
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This report contains an evaluation of the effect of high-performance concrete on the cost and structural performance of bridges constructed with high-performance concrete bridge decks and high-strength concrete girders. Bridge designers and owners are the main audience.
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Fundamental Period of Vibration for reinforced concrete building
Author: Martha D Morales | Size: 2.67 MB | Format:PDF | Publisher: University of Ottawa
Thesis from University of Ottawa
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The New Manual of Seismological Observatory Practice (NMSOP or "the Manual") is an initiative of the former Commission on Practice (CoP) of the International Association of Seismology and Physics of the Earth Interior (IASPEI). At its meeting in conjunction with the IASPEI General Assembly in Wellington, New Zealand, January 1994, the CoP established a Working Group on the Manual of Seismological Observatory Practice. Peter Bormann agreed to chair the group. A first concept for the NMSOP was put forward at the General Assembly of IASPEIs European Seismological Commission (ESC) in Athens, Greece, September 1994 (Bormann, 1994). At subsequent meetings and through correspondence, Working Group members were found, willing to contribute major chapters, topical sections or complementary annexes to the Manual. Over the course of time the original conception of the organization of the Manual evolved, in response to the material that authors actually provided. The authorship itself changed as well, as some people dropped out and replacements emerged. This has delayed the completion of the NMSOP. In support of the NMSOP the Manual Working Group organized six open workshop sessions in conjunction with IASPEI and ESC assemblies, with oral and poster presentations as well as Internet presentations of the Manual website under development. The history of the Manual and its forerunners, the activities of the Working Group, as well as the scope, philosophy and expected outreach of the NMSOP, are outlined in more detail in Chapter 1. In total, 40 authors and contributors from nine countries have collaborated in producing about 1250 pages of new drafts (see list of authors and contributors). These were reviewed extensively both within the Working Group and by 35 external reviewers from 10 countries. Thus we hope to have produced a Manual that will be considered useful not only for the daily work of personnel at seismological observatories and centers for data analysis, but which may also find interest in a broader context of education in Earth sciences and training at universities and secondary schools.
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Editorial Reviews
From Scientific American
As a meteorologist, I have used least squares, maximum likelihood, maximum entropy, and empirical orthogonal functions during the course of my work, but this book brought together these somewhat disparate techniques into a coherent, unified package ... I recommend it to meteorologists involved with data analysis and parameterization.
Review
"The author has produced a meaningful guide to the subject; one which a student (or professional unfamiliar with the field) can follow without great difficulty and one in which many motivational guideposts are provided....I think that the value of the book is outstanding....It deserves a prominent place on the shelf of every scientist or engineer who has data to interpret."
--GEOPHYSICS
"As a meteorologist, I have used least squares, maximum likelihood, maximum entropy, and empirical orthogonal functions during the course of my work, but this book brought together these somewhat disparate techniques into a coherent, unified package....I recommend it to meteorologists involved with data analysis and parameterization."
--Roland B. Stull, THE BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
"This book provides an excellent introductory account of inverse theory with geophysical applications....My experience in using this book, along with supplementary material in a course for the first year graduate students, has been very positive. I unhesitatingly recommend it to any student or researcher in the geophysical sciences."
--PACEOPH
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Today, we see that worldwide reserves are staying about the same, even increasing in some areas, partly because of the increased use of advanced technology in the exploration and development methods. Much of the credit for maintaining worldwide petroleum reserves must be credited to the 3-D seismic method. 3-D seismic surveys have resulted in the discovery of new fields, their development and enhancement of oil recovery projects. In addition, surface seismic surveys have been augmented by downhole surveys (VSP) that are used for borehole measurements of rock parameters such as density, acoustic velocity, and other parameters.
Another development of note has been the integration of historically separate personnel into teams of seismologists, geologists and engineers who are involved in all stages of petroleum exploration and exploitation. This has led to a need for all members of the team, their support staffs, and managers to better understand all of the technologies involved. The objectives of this text are to help satisfy this need for the non-professional members of these teams and those who support these teams in various ways.
This text will acquaint the people mentioned above with the fundamentals of the seismic techniques, their applications and limitations, with absolute minimal use of mathematics. The material is organized so that basic principles are followed by a flow of information paralleling that of applications. “Real-life” exercises are included to assist the understanding. The text is written at a level that anyone can understand without difficulty. At the end of each chapter you will find a list of key words that will help the reader to better understand the chapter by looking them up in the glossary at the end of the text. For those who are interested in more details, there are appendixes for some chapters that include more detailed information and a very complete bibliography of references for those who want to pursue the subject further.
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Hydroinformatics data integrative approaches in computation, analysis, and modeling
Author: Praveen Kumar,Ph.D.et al | Size: 8,65 MB | Format:PDF | Publisher: CRC Press Taylor & Francis Group | Year: 2006 | pages: 553 | ISBN: 978-0-8493-2894-7
Review
The book makes a real contribution in bridging different disciplines, and the authors are to be congratulated for preparing this book on hydroinformatics…well-written, is easy to follow, and comprehensive. It is extremely timely and sends a clear message that teaching hydrology must entail hydroinformatics if hydrology is to take full advantage of emerging technologies, which are heavily based on new information and computing tools…will serve as a good textbook for a course on hydroinformatics either at the senior undergraduate level or the beginning graduate level…a useful reference book on one's bookshelf.
- Vijay P. Singh, Journal of Hydrologic Engineering, Vol. 11, No. 4
Product Description
Modern hydrology is more interdisciplinary than ever. Staggering amounts and varieties of information pour in from GIS and remote sensing systems every day, and this information must be collected, interpreted, and shared efficiently. Hydroinformatics: Data Integrative Approaches in Computation, Analysis, and Modeling introduces the tools, approaches, and system considerations necessary to take full advantage of the abundant hydrological data available today.
Linking hydrological science with computer engineering, networking, and database science, this book lays a pedagogical foundation in the concepts underlying developments in hydroinformatics. It begins with an introduction to data representation through Unified Modeling Language (UML), followed by digital libraries, metadata, the basics of data models, and Modelshed, a new hydrological data model. Building on this platform, the book discusses integrating and managing diverse data in large datasets, data communication issues such as XML and Grid computing, the basic principles of data processing and analysis including feature extraction and spatial registration, and modern methods of soft computing such as neural networks and genetic algorithms.
Today, hydrological data are increasingly rich, complex, and multidimensional. Providing a thorough compendium of techniques and methodologies, Hydroinformatics: Data Integrative Approaches in Computation, Analysis, and Modeling is the first reference to supply the tools necessary to confront these challenges successfully.
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Posted by: aslam - 07-28-2011, 05:01 AM - Forum: Archive
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Seismic Design with Supplemental Energy Dissipation Devices
by Robert D Hanson and TSU T Soong
The purpose of this monograph is to impart basic concepts of the supplemental energy dissipation technology to design engineers, architects, and buildings officials so they can understand its benefits and limitations in structural applications.
Authors:
Robert D Hanson
University of Michigan, Ann Arbor, Michigan
TSU T Soong
State University of New York at Buffalo & Multidisciplinary Centre for Earthquake Engineering Research, Buffalo, New York
Contents:
Message from EERI President
Message from NICEE
Foreward
Preface
Acknowledgments
Chapter 1: Introduction
Energy Dissipation Devices
Effect of Viscous Damping on Dynamic Response
Damper-Added Structure versus Traditional Structure
Design and Analysis
Chapter 2: Characterization and Applicability of Dampers
Metallic Yielding and Friction Devices
VE Solid Devices
Viscous Fluid Devices
Summary of Equivalent Damping and Stiffness
Applicability
Chapter 3: Analysis of Damper- Added Structures
Nonlinear Structure/Nonlinear Damper (NS/ND) Procedure
Nonlinear Structure/Linearized Damper (NS/LD) Procedure
Linear Structure/Nonlinear Damper (LS/ND) Procedure
Linear Structure/Linearized Damper (LS/LD) Procedure
Chapter 4: Damper Design for Structural Applications
General Considerations
Design Procedure
Design Examples
Application Examples
References
Appendix A: Nonproportional Damping Eigenvalue Solution
SDOF—Undamped System
SDOF—Viscous Damped System
MDOF—Undamped System
MDOF—Proportionally Damped System
MDOF—Nonproportionally Damped System
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