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Author: Martina Belmonte
Publisher:
ISBN: 9780939493661
Category :
Languages : en
Pages : 148
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Book Description
Skyscrapers may be our most powerful tool in providing dense, energy-efficient living for a rapidly urbanizing population, but this typology faces certain limitations inherent to its traditional form, namely, the lack of interplay between tower, urban context, and community. Through a historical overview, case study analysis, and a series of design considerations, this report explores how ropeless and multidirectional elevator technologies can enable cities to be more interconnected, efficient, and accessible.Running on a series of seamless loops, and powered by magnetic levitation, ropeless and multidirectional elevator cabins could follow a multiplicity of routes within a given building, not only reducing the quantity of shafts needed and increasing rentable area, but also allowing elevators more options in terms of where they stop across a building's dimensions. When paired with skybridges and "skyspaces," at-height services and communities could be easily linked with one another, bolstering the critical link between a piece of architecture and the urban sphere, while combating some of the insularity endemic to skyscrapers.This Research Report is the product of two years of research by the CTBUH Research Office in Venice, CTBUH Staff, professionals in the field, and a research team of architecture and supporting academic advisors. It is part of a series of research reports that offer insight into specific areas of skyscraper research, offering a wealth of knowledge essential for industry professionals, academic researchers and all others interested in the relationship between skyscrapers and urban habitat.
Author: Martina Belmonte
Publisher:
ISBN: 9780939493661
Category :
Languages : en
Pages : 148
Get Book Here
Book Description
Skyscrapers may be our most powerful tool in providing dense, energy-efficient living for a rapidly urbanizing population, but this typology faces certain limitations inherent to its traditional form, namely, the lack of interplay between tower, urban context, and community. Through a historical overview, case study analysis, and a series of design considerations, this report explores how ropeless and multidirectional elevator technologies can enable cities to be more interconnected, efficient, and accessible.Running on a series of seamless loops, and powered by magnetic levitation, ropeless and multidirectional elevator cabins could follow a multiplicity of routes within a given building, not only reducing the quantity of shafts needed and increasing rentable area, but also allowing elevators more options in terms of where they stop across a building's dimensions. When paired with skybridges and "skyspaces," at-height services and communities could be easily linked with one another, bolstering the critical link between a piece of architecture and the urban sphere, while combating some of the insularity endemic to skyscrapers.This Research Report is the product of two years of research by the CTBUH Research Office in Venice, CTBUH Staff, professionals in the field, and a research team of architecture and supporting academic advisors. It is part of a series of research reports that offer insight into specific areas of skyscraper research, offering a wealth of knowledge essential for industry professionals, academic researchers and all others interested in the relationship between skyscrapers and urban habitat.
Author: A. J. Moses
Publisher: IOS Press
ISBN: 9789051992519
Category : Computers
Languages : en
Pages : 986
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Book Description
The book covers classical and practical approaches to electromagnetic field solutions in magnetic devices. The following topics are addressed: Advanced computional techniques; Intelligent computer aided design; Magnetic materials; Inverse problems; Magnetic sensors and transducers; Performance and optimisation of devices; Applications to electronic systems; Modelling of non-linear systems and other related topics. This volume presents 200 of the best articles presented at the International Symposium on Non-Linear Electromagnetic Systems (ISEM in Cardiff, Wales). The previous ISEM papers were published in the successful volume Advanced Computational and Design Techniques in Applied Electromagnetic Systems (by Elsevier).Main chapters in this book are: Electromagnetic Devices: Non-linearities at contacts and interfaces in semiconductor structures by R.H. Williams as key-note. Optimisation, Inverse and Biological Studies: Power loss testing; intelligent computation of optimization of metal cutting; grid methods for CFD and CEM. Magnetic Materials: Materials for circuit semilator applications; rotational magnetostriction. Computational Techniques and Modelling: Electromagnetic device design; soft magnetic materials; engineering application of artificial intelligence. Sensors and Non-destructive Testing: Eddy current nondestructive evaluation; nonlinear magnetoresistance; micro magnetic sensor. Electronic and Electrical Applications: Non-linear transistor parameters; superconducting magnets.
Author: Marja-Liisa Siikonen
Publisher: John Wiley & Sons
ISBN: 1119545560
Category : Architecture
Languages : en
Pages : 452
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Book Description
Discover how to measure, control, model, and plan people flow within modern buildings with this one-stop resource from a leading professional People Flow in Buildings delivers a comprehensive and insightful description of people flow, analysis with software-based tools. The book offers readers an up-to-date overview of mathematical optimization methods used in control systems and transportation planning methods used to manage vertical and horizontal transportation. The text offers a starting point for selecting the optimal transportation equipment for new buildings and those being modernized. It provides insight into making passenger journeys pleasant and smooth, while providing readers with an examination of how modern trends in building usage, like increasingly tall buildings and COVID-19, effect people flow planning in buildings. People Flow in Buildings clearly defines the terms and symbols it includes and then moves on to deal with the measurement, control, modelling, and planning of people flow within buildings of all kinds. Each chapter contains an introduction describing its contents and the background of the subject. Included appendices describe measured passenger data and performed analyses. Readers will also benefit from the inclusion of: A thorough introduction to people-counting methods, including counting technology inside and outside buildings, passenger traffic components, and manual people-counting An examination of the passenger arrival process in building, including the Poisson arrival process and probability density function, and passenger arrivals in batches A consideration of daily vertical passenger traffic profiles, including two-way traffic profiles and the effects of inter-floor traffic An exploration of people flow solutions, including stairs, escalators, and elevators with collective and destination group control systems, as well as double-deck and multicar system People flow calculation and simulation models Elevator planning with ISO simulation method Elevator planning and evacuation of tall buildings Perfect for software designers in the private sector and academia, People Flow in Buildings will also earn a place in the libraries of elevator consultants, manufacturers, and architects who seek a one-stop reference for transportation devices from a functional and design perspective, as opposed to a hardware perspective.
Author: Jason M. Barr
Publisher: Oxford University Press
ISBN: 0199344388
Category : Business & Economics
Languages : en
Pages : 457
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Book Description
The Manhattan skyline is one of the great wonders of the modern world. But how and why did it form? Much has been written about the city's architecture and its general history, but little work has explored the economic forces that created the skyline. In Building the Skyline, Jason Barr chronicles the economic history of the Manhattan skyline. In the process, he debunks some widely held misconceptions about the city's history. Starting with Manhattan's natural and geological history, Barr moves on to how these formations influenced early land use and the development of neighborhoods, including the dense tenement neighborhoods of Five Points and the Lower East Side, and how these early decisions eventually impacted the location of skyscrapers built during the Skyscraper Revolution at the end of the 19th century. Barr then explores the economic history of skyscrapers and the skyline, investigating the reasons for their heights, frequencies, locations, and shapes. He discusses why skyscrapers emerged downtown and why they appeared three miles to the north in midtown-but not in between the two areas. Contrary to popular belief, this was not due to the depths of Manhattan's bedrock, nor the presence of Grand Central Station. Rather, midtown's emergence was a response to the economic and demographic forces that were taking place north of 14th Street after the Civil War. Building the Skyline also presents the first rigorous investigation of the causes of the building boom during the Roaring Twenties. Contrary to conventional wisdom, the boom was largely a rational response to the economic growth of the nation and city. The last chapter investigates the value of Manhattan Island and the relationship between skyscrapers and land prices. Finally, an Epilogue offers policy recommendations for a resilient and robust future skyline.
Author: R. Krishnan
Publisher: CRC Press
ISBN: 1351835955
Category : Technology & Engineering
Languages : en
Pages : 454
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Book Description
The switched reluctance machine (SRM) is the least expensive electrical machine to produce, yet one of the most reliable. As such, research has blossomed during the last decade, and the SRM and variable drive systems using SRMs are receiving considerable attention from industry. Because they require a power electronic converter and controller to function, however, successful realization of an SRM variable drive system demands an understanding of the converter and controller subsystems and their integration with the machine. Switched Reluctance Motor Drives provides that understanding. It presents a unified view of the machine and its drive system from all of its system and subsystem aspects. With a careful balance of theory and implementation, the author develops the analysis and design of SRMs from first principles, introduces a wide variety of power converters available for driving the SRM, and systematically presents both low- and high-performance controllers. The book includes an in-depth study of acoustic noise and its minimization along with application examples that include comparisons between ac and dc drives and SRM drive. The result is the first book that provides a state-of-the-art knowledge of SRMs, power converters, and their use with both sensor-based and sensorless controllers. Switched Reluctance Motor Drives enables both students and engineers to learn all aspects of SRM drive systems and appreciate the interdependence of the various subsystems in performance optimization.
Author: Jacek F. Gieras
Publisher: CRC Press
ISBN: 1439842221
Category : Technology & Engineering
Languages : en
Pages : 524
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Book Description
Considered to be the first book devoted to the subject, Linear Synchronous Motors: Transportation and Automation Systems, Second Edition evaluates the state of the art, demonstrating the technological innovations that are improving the design, construction, and performance of modern control systems. This new edition not only illustrates the development of linear synchronous motor drives, but it also discusses useful techniques for selecting a motor that will meet the specific requirements of linear electrical drives. New Features for the Second Edition: Several updated and expanded sections, as well as two new chapters on FEM Even more numerical examples, calculations, and mathematical models Broadened target audience that includes researchers, scientists, students, and more Evaluating trends and practical techniques for achieving optimal system performance, the authors showcase ready-to-implement solutions for common roadblocks in this process. The book presents fundamental equations and calculations used to determine and evaluate system operation, efficiency, and reliability, with an exploration of modern computer-aided design of linear synchronous motors, including the finite element approach. It covers topics such as linear sensors and stepping motors, magnetic levitation systems, elevators, and factory automation systems. It also features case studies on flat PM, tubular PM, air-cored, and hybrid linear synchronous motors, as well as 3D finite element method analysis of tubular linear reluctance motors, and linear oscillatory actuators. With such an exceptional presentation of practical tools and conceptual illustrations, this volume is an especially powerful resource. It will benefit readers from all walks by providing numerical examples, models, guidelines, and diagrams to help develop a clear understanding of linear synchronous motor operations, characteristics, and much more.
Author: Hyung-Suk Han
Publisher: Springer
ISBN: 9401775249
Category : Technology & Engineering
Languages : en
Pages : 256
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Book Description
This book provides a comprehensive overview of magnetic levitation (Maglev) technologies, from fundamental principles through to the state-of-the-art, and describes applications both realised and under development. It includes a history of Maglev science and technology showing the various milestones in its advancement. The core concepts, operating principles and main challenges of Maglev applications attempted across various fields are introduced and discussed. The principle difficulties encountered when applying Maglev technology to different systems, namely air gap control and stabilization, are addressed in detail. The book describes how major advancements in linear motor and magnet technologies have enabled the development of the linear-motor-powered Maglev train, which has a high speed advantage over conventional wheeled trains and has the potential to reach speed levels achieved by aircraft. However, many expect that Maglev technology to be a green technology that is applied not only in rail transportation, but also in diverse other fields; to ensure clean transfer in LCD manufacturing, in ropeless high speed elevators, small capacity rail transportation, space vehicle launchers, missile testers, energy storage, and so on. These potential applications and their unique challenges and proposed technological solutions are introduced and discussed in depth. The book will provide readers from academia, research institutes and industry with insights on where and how to apply Maglev technology, and will serve as a guide to the realization of their Maglev applications.
Author: Gina Carol Barney
Publisher: Taylor & Francis
ISBN: 9780415274760
Category : Architecture
Languages : en
Pages : 136
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Book Description
The practical constraints and considerations of the underlying engineering are also indicated."--BOOK JACKET.
Author: Sławomir Wiak
Publisher: IOS Press
ISBN: 1607506033
Category : Science
Languages : en
Pages : 968
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Book Description
Computer Field Models of Electromagnetic Devices, volume 34 in the book series Studies in Applied Electromagnetics and Mechanics is devoted to modeling and simulation, control systems, testing, measurements, monitoring, diagnostics and advanced software
Author: George R. Strakosch
Publisher: John Wiley & Sons
ISBN: 0470919736
Category : Technology & Engineering
Languages : en
Pages : 806
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Book Description
This new edition of a one-of-a-kind handbook provides an essential updating to keep the book current with technology and practice. New coverage of topics such as machine-room-less systems and current operation and control procedures, ensures that this revision maintains its standing as the premier general reference on vertical transportation. A team of new contributors has been assembled to shepherd the book into this new edition and provide the expertise to keep it up to date in future editions. A new copublishing partnership with Elevator World Magazine ensures that the quality of the revision is kept at the highest level, enabled by Elevator World's Editor, Bob Caporale, joining George Strakosch as co-editor.
