- Table View
- List View
Engineering Geology for a Habitable Earth: Volume 2: Geohazard Mechanisms, Risk Assessment and Control, Monitoring and Early Warning (Environmental Science and Engineering)
by Rafig Azzam Runqiu Huang Vassilis P. Marinos Sijing WangThis book collects the selected papers of the XIV Congress of the International Association for Engineering Geology and the Environment held in Chengdu, Sichuan, China from September 21st - 27th, 2023, with the theme of Engineering Geology for a Habitable Earth. The meeting proceedings analyses the dynamic role of engineering geology in our changing world. The congress is expected to enhance the inter-disciplinary research development of international engineering geology and the environment, and contribute to the advancement of major projects, ecological progress, and habitable earth with in-depth discussion in the area of engineering geology and global climate change, geological hazard assessment and prevention, geotechnical properties of rock and soil mass, engineering geology and the environmental issues concerning marine, transportation, urban and ecological environment protection, engineering geology and resilience engineering construction, intelligent engineering geology, and new theories, methods, and techniques in engineering geology.
Engineering Geology for a Habitable Earth: Volume 3: Active Tectonics, Geomorphology, Climate and Geoenvironmental Engineering Geology (Environmental Science and Engineering)
by Rafig Azzam Runqiu Huang Vassilis P. Marinos Sijing WangThis book collects the selected papers of the XIV Congress of the International Association for Engineering Geology and the Environment held in Chengdu, Sichuan, China from September 21st - 27th, 2023, with the theme of Engineering Geology for a Habitable Earth. The meeting proceedings analyses the dynamic role of engineering geology in our changing world. The congress is expected to enhance the inter-disciplinary research development of international engineering geology and the environment, and contribute to the advancement of major projects, ecological progress, and habitable earth with in-depth discussion in the area of engineering geology and global climate change, geological hazard assessment and prevention, geotechnical properties of rock and soil mass, engineering geology and the environmental issues concerning marine, transportation, urban and ecological environment protection, engineering geology and resilience engineering construction, intelligent engineering geology, and new theories, methods, and techniques in engineering geology.
Engineering Geology for a Habitable Earth: Volume 4: Technological Innovation and Application for Engineering Geology (Environmental Science and Engineering)
by Rafig Azzam Runqiu Huang Vassilis P. Marinos Sijing WangThis book collects the selected papers of the XIV Congress of the International Association for Engineering Geology and the Environment held in Chengdu, Sichuan, China from September 21st - 27th, 2023, with the theme of Engineering Geology for a Habitable Earth. The meeting proceedings analyses the dynamic role of engineering geology in our changing world. The congress is expected to enhance the inter-disciplinary research development of international engineering geology and the environment, and contribute to the advancement of major projects, ecological progress, and habitable earth with in-depth discussion in the area of engineering geology and global climate change, geological hazard assessment and prevention, geotechnical properties of rock and soil mass, engineering geology and the environmental issues concerning marine, transportation, urban and ecological environment protection, engineering geology and resilience engineering construction, intelligent engineering geology, and new theories, methods, and techniques in engineering geology.
Engineering Geology for a Habitable Earth: Volume 5: Megacity Development and Preservation of Cultural Heritage Engineering Geology (Environmental Science and Engineering)
by Rafig Azzam Runqiu Huang Vassilis P. Marinos Sijing WangThis book collects the selected papers of the XIV Congress of the International Association for Engineering Geology and the Environment held in Chengdu, Sichuan, China from September 21st - 27th, 2023, with the theme of Engineering Geology for a Habitable Earth. The meeting proceedings analyses the dynamic role of engineering geology in our changing world. The congress is expected to enhance the inter-disciplinary research development of international engineering geology and the environment, and contribute to the advancement of major projects, ecological progress, and habitable earth with in-depth discussion in the area of engineering geology and global climate change, geological hazard assessment and prevention, geotechnical properties of rock and soil mass, engineering geology and the environmental issues concerning marine, transportation, urban and ecological environment protection, engineering geology and resilience engineering construction, intelligent engineering geology, and new theories, methods, and techniques in engineering geology.
Engineering Geology for a Habitable Earth: Volume 6: Marine and Deep Earth Engineering Geology (Environmental Science and Engineering)
by Rafig Azzam Runqiu Huang Vassilis P. Marinos Sijing WangThis book collects the selected papers of the XIV Congress of the International Association for Engineering Geology and the Environment held in Chengdu, Sichuan, China from September 21st - 27th, 2023, with the theme of Engineering Geology for a Habitable Earth. The meeting proceedings analyses the dynamic role of engineering geology in our changing world. The congress is expected to enhance the inter-disciplinary research development of international engineering geology and the environment, and contribute to the advancement of major projects, ecological progress, and habitable earth with in-depth discussion in the area of engineering geology and global climate change, geological hazard assessment and prevention, geotechnical properties of rock and soil mass, engineering geology and the environmental issues concerning marine, transportation, urban and ecological environment protection, engineering geology and resilience engineering construction, intelligent engineering geology, and new theories, methods, and techniques in engineering geology.
Engineering Geology of Melbourne
by W. A. Peck J. L. Neilson R. J. Olds K. D. SeddonA compilation of papers describing the geology, engineering properties and the hazards and design issues associated with the substrata of Melbourne and its surrounds. It includes the area from Geelong to Bacchus Marsch to the Dandenongs and Mornington Peninsula.
Engineering Geology: An Introduction (Springer Textbooks in Earth Sciences, Geography and Environment)
by Dieter D. GenskeIf you have an interest in geohazards and the repercussions of human intervention, this book will provide you with fresh insights into exciting challenges. You will learn about natural hazards like rockfall, landslides and subsidence, while also exploring safe and cost-effective construction, the mapping of contaminated sites, the remediation of post-mining landscapes and the storage of hazardous waste. Organized into three stages, this book presents the interdisciplinary field of engineering geology. It starts with the fundamentals, then explores the expansive domain of site investigation and finally applies the acquired knowledge to practical scenarios. You will also discover how engineering geology contributes to contemporary issues such as sustainable raw material use, the green energy transition, the water crisis and climate adaptation. The concluding chapter delves into utopias, some of which are potentially feasible, like a tunnel through the Atlantic, inhabitable islands made of plastic waste or towers breaking height records.Engineering Geology navigates readers through a myriad of practical examples, showcasing both impressive projects and cautionary tales of costly failures whose causes are thoroughly examined and analyzed. The book features approximately one hundred worked-out exercises, offering readers an immersive experience across various topics. Following each chapter, practical exercises and suggestions for further reading are provided. With its excellent illustration through numerous diagrams, tables, drawings and photos, this textbook caters to engineers and geoscientists, as well as students and practitioners.This book is a supplemented translation of the original German 3rd edition "Ingenieurgeologie" by Dieter D. Genske, published by Springer-Verlag GmbH Germany, part of Springer Nature in 2021. The translation was done with the assistance of artificial intelligence (machine translation by the service DeepL.com). Subsequent human revision primarily focused on content, resulting in a stylistically distinct read compared to a conventional translation. Springer Nature continually works to advance tools for book production and related technologies to support authors. a conventional translation. Springer Nature continually works to advance tools for book production and related technologies to support authors. a conventional translation. Springer Nature continually works to advance tools for book production and related technologies to support authors. a conventional translation. Springer Nature continually works to advance tools for book production and related technologies to support authors. a conventional translation. Springer Nature continually works to advance tools for book production and related technologies to support authors. a conventional translation. Springer Nature continually works to advance tools for book production and related technologies to support authors.a conventional translation. Springer Nature continually works to advance tools for book production and related technologies to support authors.
Engineering Geology: Proceedings of the 30th International Geological Congress, Volume 23
by Wang Sijing P. MarinosThis volume focuses on the engineering geological and environmental problems of major engineering works, rock and soil properties, and protection of the geoenvironment and reduction of geohazards, reflecting the major achievements and advancement of engineering geological science and technology. It includes documents of the contributions of engineering geologists from various parts of the world, who attended the 30th International Geological Congress (IGC) held in Beijing on 4-14 August, 1996.
Engineering Geophysics
by Anna Bondo Medhus Lone KlinkbyEngineering Geophysics connects onshore geotechnical engineering challenges to the geophysical methods that may be applied to solve them. Unknown geological conditions are a risk in construction projects, and geophysical information can help to identify those risks. The book answers questions on how, why, and when the individual and combined methods provide the results requested. Flowcharts guide the reader to geophysical methods that can be applied for various engineering challenges, and the solutions are illustrated with practical case histories. The book is intended mainly for geotechnical engineers and geologists but also for geophysicists or managers in need of an overview or brushup on geophysical methods and their practical applications. In addition, it can be used by educational institutions in courses both for geotechnical engineers and geologists.
Engineering Granular Microbiomes: Bacterial Resource Management for Nutrient Removal in Aerobic Granular Sludge Wastewater Treatment Systems (Springer Theses)
by David Gregory WeissbrodtThis book reports on the ecological engineering of granular sludge processes for a high-rate removal of carbon, nitrogen, and phosphorus nutrients in compact wastewater treatment plants. It provides novel insights into microorganisms and metabolisms in wastewater microbiomes and the use of microbial ecology principles to manage wastewater treatment processes. It covers a very comprehensive and inter-disciplinary research of systems microbiology and environmental biotechnology. From the initial economic assessment of the aerobic granular sludge technology, concepts of microbiome science and engineering are developed to uncover and manage the microbial ecosystem of granular sludge. Mixed-culture biotechnological processes, multifactorial experimental designs, laser scanning microscopy, molecular microbial ecology and bioinformatics methods, numerical ecology workflows, and mathematical modelling are engaged to disentangle granulation phenomena, microbial selection, and nutrient conversions across scales. The findings are assembled in a guideline for microbial resource management in granular sludge processes to support knowledge utilization in engineering practice. Outputs are integrated in the state of the art of biological wastewater treatment. This book addresses both scientists and engineers who are eager to get insights into and engineer microbiomes for environmental biotechnologies. It makes a valuable contribution to methods for strengthening the role of wastewater treatment plants for recovering safe water and resources, in the context of circular economy and for sustaining health and the environment in an ecologically balanced society.
Engineering Graphics
by Aleksandr Yurievich BrailovThis professionaltreatise on engineering graphics emphasizes engineering geometry as thetheoretical foundation for communication of design ideas with real worldstructures and products. It considers each theoretical notion of engineeringgeometry as a complex solution of direct- and inverse-problems of descriptivegeometry and each solution of basic engineering problems presented isaccompanied by construction of biunique two- and three-dimension models ofgeometrical images. The book explains the universal structure of formalalgorithms of the solutions of positional, metric, and axonometric problems, aswell as the solutions of problems of construction in developing a curvilinearsurface. The book further characterizes and explains the added laws ofprojective connections to facilitate construction of geometrical images in anyof eight octants. Laws of projective connections allow constructing the complexdrawing of a geometrical image in the American system of measurement and theEuropean system of measurement without errors and mistakes. The arrangement ofprojections of a geometrical image on the complex drawing corresponds to anarrangement of views of a product in the projective drawing for the Europeansystem of measurement. The volume is ideal for engineers working on a range ofdesign projects as well as for students of civil, structural, and industrialengineering and engineering design.
Engineering Graphics with SolidWorks 2013
by David C. Planchard Marie P. PlanchardEngineering Graphics with SolidWorks 2013 is written to assist technical school, two year college, four year university instructor/student or industry professional that is a beginner or intermediate SolidWorks user. The book combines the fundamentals of engineering graphics and dimensioning practices with a step-by-step project based approach to learning SolidWorks. The book is divided into two parts: Engineering Graphics and SolidWorks 3D CAD software.
Engineering Graphics: Text and Workbook
by Jerry W. Craig Orval B. Craig<p>This book focuses on strengthening 3D visualization skills through sketching exercises. It does not make reference to any particular computer-aided design software package. Points emphasized: <p> <br>1. Shape representation and problem solving using freehand sketching. Assignments can be completed outside class. <br>2. Surface Analysis -- A powerful approach to teaching visualization. <br>3. Establishes a process for solving problems. Students can solve features of objects before they can see; the shapes. <br>4. Challenging problems. Worksheet layouts allow faster progress. <br>5. Students learn how to think about shapes in three dimensions. <br>6. Students can prove every line on a drawing. There is no question whether the answer is correct or not.</br> </p>
Engineering Haptic Devices
by Christian Hatzfeld Thorsten A. KernIn this greatly reworked second edition of Engineering Haptic Devices the psychophysic content has been thoroughly revised and updated. Chapters on haptic interaction, system structures and design methodology were rewritten from scratch to include further basic principles and recent findings. New chapters on the evaluation of haptic systems and the design of three exemplary haptic systems from science and industry have been added. This book was written for students and engineers that are faced with the development of a task-specific haptic system. It is a reference book for the basics of haptic interaction and existing haptic systems and methods as well as an excellent source of information for technical questions arising in the design process of systems and components. Divided into two parts, part 1 contains typical application areas of haptic systems and a thorough analysis of haptics as an interaction modality. The role of the user in the design of haptic systems is discussed and relevant design and development stages are outlined. Part II presents all relevant problems in the design of haptic systems including general system and control structures, kinematic structures, actuator principles and sensors for force and kinematic measures. Further chapters examine interfaces and software development for virtual reality simulations.
Engineering Haptic Devices: A Beginner's Guide (Springer Series on Touch and Haptic Systems)
by Christian Hatzfeld Thorsten A. Kern Alireza AbbasimoshaeiThis is an open access book.In this third edition of Engineering Haptic Devices the software part was rewritten from scratch and now includes even more details on tactile and texture interaction modalities. The kinematics section was improved to extend beyond a pure knowledge explanation to a comprehensive guideline on how to actually do and implement haptic kinematic functions. The control section was reworked incorporating some hands-on experience on control implementation on haptic systems. The system, actuator and sensor design chapters were updated to allow easier access to the content.This book is written for students and engineers faced with the development of a task-specific haptic system. Now 14 years after its first edition, it is still a reference for the basics of haptic interaction and existing haptic systems and methods as well as an excellent source of information for technical questions arising in the design process of systems and components. Following a system engineering approach, it is divided into two parts with Part I containing background and reference information as a knowledge basis. Typical application areas of haptic systems and a thorough analysis of haptics as an interaction modality are introduced. The role of users in the design of haptic systems is discussed and relevant design and development stages are outlined. Part II presents all related challenges in the design of haptic systems including general system architecture and control structures, kinematics, actuator principles and all types of sensors you may encounter doing haptic device development. Beside these hardware and mechanical topics, further chapters examine state-of-the-art interfaces to operate the devices, and hardware and software development to push haptic systems to their limits.
Engineering Heat Transfer
by Donatello AnnaratoneThis book is a generalist textbook; it is designed for anybody interested in heat transmission, including scholars, designers and students. Two criteria constitute the foundation of Annaratone's books, including the present one. The first one consists of indispensable scientific rigor without theoretical exasperation. The inclusion in the book of some theoretical studies, even if admirable for their scientific rigor, would have strengthened the scientific foundation of this publication, yet without providing the reader with further applicable know-how. The second criterion is to deliver practical solution to operational problems. This criterion is fulfilled through equations based on scientific rigor, as well as a series of approximated equations, leading to convenient and practically acceptable solutions, and through diagrams and tables. When a practical case is close to a well defined theoretical solution, corrective factors are shown to offer simple and correct solutions to the problem.
Engineering Hydrology of Arid and Semi-Arid Regions
by Mostafa M. SolimanThe natural scarcity of water in arid and semiarid regions, aggravated by man-made factors, makes it difficult to achieve a reliable water resources supply. Communities in these areas pay the price for thousands of years of water manipulation. Presenting important insight into the complexities of arid region hydrology, Engineering Hydrology of Arid
Engineering IT-Enabled Sustainable Electricity Services
by Le Xie Marija Ilic Qixing LiuSustainable energy services to customers - a balanced choice and coordination of energy generated by traditional and alternative sources - are the subject of this new innovative book. The myriad factors involved in modeling an effective sustainable power system are overwhelming. The "Green Islands" project represents a decade of work by over a dozen researchers who have developed a model designed to utilize the potential of distributed clean resources. The key is the proper use of Information Technology (IT). Sited on two islands in the Azores, the project developed the model of careful forecasting of demand and supply, down to the minute, coordinating the output of conventional power plants, wind energy, fly wheels, hydroelectricity, demand reduction, and even plug-in electric vehicles to take full advantage of the clean resources available. The energy contingencies of the remote islands are not unique. The issues of integrating promising clean technologies, such as wind, into a complex power grid are challenging in geographically far-flung, island-scale, power systems. Model-based sensing, communications, and decision-making algorithms to coordinate adaptive load management (ALM) could enable customers to utilize just-in-time (JIT), just-in-place (JIP), and just-in-context (JIC) energy resources. The distribution of flexible and efficient energy to customers is the goal. The model the authors have developed could change the way power portfolios are built. A new perspective for optimization of green energy is presented in this book. Additional data provided online via Springer represents a repository of real-world electric energy systems and its IT-enabled smarts.
Engineering Information Security
by Stuart JacobsInformation security is the act of protecting information from unauthorized access, use, disclosure, disruption, modification, or destruction. This book discusses why information security is needed and how security problems can have widespread impacts. It covers the complete security lifecycle of products and services, starting with requirements and policy development and progressing through development, deployment, and operations, and concluding with decommissioning. Professionals in the sciences, engineering, and communications fields will turn to this resource to understand the many legal, technical, competitive, criminal and consumer forces and influences that are rapidly changing our information dependent society.If you're a professor and would like a copy of the solutions manual, please contact ieeepress@ieee.org.The material previously found on the CD can now be found on www.booksupport.wiley.com.
Engineering Innovation and Design: Proceedings of the 7th International Conference on Innovation, Communication and Engineering (ICICE 2018), November 9-14, 2018, Hangzhou, China (Smart Science, Design & Technology)
by Stephen D. Prior Siu-Tsen Shen Sheng-Joue Young Liang-Wen Ji Artde D.K.T. LamThis volume represents the proceedings of the 7th International Conference on Innovation, Communication and Engineering (ICICE 2018), which was held in P.R. China, November 9-14, 2018. The conference aimed to provide an integrated communication platform for researchers in a wide range of fields including information technology, communication science, applied mathematics, computer science, advanced material science, and engineering. Hopefully, the conference and resulting proceedings will enhance interdisciplinary collaborations between science and engineering technologists in academia and industry within this unique international network.
Engineering Innovative Products: A Practical Experience
by Julian Murphy Paul Hermon Karen Rafferty Roger Woods"The book provides vital insights into commercial development for engineering students in a highly practical and applied manner. Over the past 3 years, application of the book’s material has allowed the students to develop their commercial literacy and ambition in the University." —Steve Orr, Director, Northern Ireland Science Park CONNECT program which looks to accelerate the growth of knowledge-based companies in Northern Ireland Engineering Innovative Products: A Practical Experience is a pioneering book that will be of key use to senior undergraduate and graduate engineering students who are being encouraged to explore innovation and commercialization as part of their courses. The book will teach the essential skills of entrepreneurship and address the fundamental requirements needed to establish a successful technology company. As well as providing the crucial background and insights enabling students to identify a key market, it also offers a highly practical guide to undertaking genuine product validation and producing a feasibility study, as well as providing vital insights into the challenges and demands in forming a technology based company. Key features: Outlines how to develop and grow an engineering solution which has market potential and covers key business aspects of giving the perfect pitch, sales and marketing, protection of ideas and finance, to offer a complete and practical guide to commercializing ideas. Provides vital insight into the design and innovation processes within engineering and the challenges and pitfalls in translating good ideas into great products. Features contributions from leading experts in marketing, finance, company formation, sales and intellectual protection which provides details of the challenges faced by innovators when commercializing ideas. Includes Ccase studies from engineering students who give insights into how they have successfully developed their own ideas into companies.
Engineering Instruction for High-Ability Learners in K-8 Classrooms
by Alicia Cotabish Debbie DaileyEngineering Instruction for High-Ability Learners in K-8 Classrooms is an application-based practitioners' guide to applied engineering that is grounded in engineering practices found in the new Next Generation Science Standards (NGSS) and the Standards for Engineering Education. The book will provide educators with information and examples on integrating engineering into existing and newly designed curriculum. The book will specify necessary components of engineering curriculum and instruction, recommend appropriate activities to encourage problem solving, creativity, and innovation, and provide examples of innovative technology in engineering curriculum and instruction. Additionally, authors will discuss professional development practices to best prepare teachers for engineering instruction and provide recommendations to identify engineering talent among K-8 students. Finally, the book will include a wealth of resources, including sample lesson and assessment plans, to assist educators in integrating engineering into their curriculum and instruction.
Engineering Intelligent Systems: Systems Engineering and Design with Artificial Intelligence, Visual Modeling, and Systems Thinking
by Barclay R. BrownEngineering Intelligent Systems Exploring the three key disciplines of intelligent systems As artificial intelligence (AI) and machine learning technology continue to develop and find new applications, advances in this field have generally been focused on the development of isolated software data analysis systems or of control systems for robots and other devices. By applying model-based systems engineering to AI, however, engineers can design complex systems that rely on AI-based components, resulting in larger, more complex intelligent systems that successfully integrate humans and AI. Engineering Intelligent Systems relies on Dr. Barclay R. Brown’s 25 years of experience in software and systems engineering to propose an integrated perspective to the challenges and opportunities in the use of artificial intelligence to create better technological and business systems. While most recent research on the topic has focused on adapting and improving algorithms and devices, this book puts forth the innovative idea of transforming the systems in our lives, our societies, and our businesses into intelligent systems. At its heart, this book is about how to combine systems engineering and systems thinking with the newest technologies to design increasingly intelligent systems. Engineering Intelligent Systems readers will also find: An introduction to the fields of artificial intelligence with machine learning, model-based systems engineering (MBSE), and systems thinking—the key disciplines for making systems smarter An example of how to build a deep neural network in a spreadsheet, with no code or specialized mathematics required An approach to the visual representation of systems, using techniques from moviemaking, storytelling, visual systems design, and model-based systems engineering An analysis of the potential ability of computers to think, understand and become conscious and its implications for artificial intelligence Tools to allow for easier collaboration and communication among developers and engineers, allowing for better understanding between stakeholders, and creating a faster development cycle A systems thinking approach to people systems—systems that consist only of people and which form the basis for our organizations, communities and society Engineering Intelligent Systems offers an intriguing new approach to making systems more intelligent using artificial intelligence, machine learning, systems thinking, and system modeling and therefore will be of interest to all engineers and business professionals, particularly systems engineers.
Engineering Interventions in Sustainable Trickle Irrigation: Irrigation Requirements and Uniformity, Fertigation, and Crop Performance (Innovations in Agricultural & Biological Engineering)
by Megh R. Goyal Basamma K. AladakattiImproving agricultural water use efficiency (WUE) is vitally important in many parts of the world due to the decreasing availability of water resources and the increasing competition for water between different users. Micro irrigation is an effective tool for conserving water resources. Studies have revealed a significant water savings, ranging from 40% to 70% under drip irrigation compared with surface irrigation. This new volume, Engineering Interventions in Sustainable Trickle Irrigation: Irrigation Requirements and Uniformity, Fertigation, and Crop Performance, presents valuable research that evaluates crop water and fertigation requirements, examines optimum irrigation and fertigation scheduling, and analyzes the performance of agricultural crops under micro irrigation. <P><P> With an interdisciplinary perspective, this volume addresses the urgent need to explore and investigates the current shortcomings and challenges of water resources engineering, especially in micro irrigation engineering. The volume discusses crop water requirements, fertigation technology, and performance of agricultural crops under best management practices. The chapter authors present research studies on drip irrigated tomato, chilies, cucumber, eggplant, cabbage, garlic, sugarcane maize, cashew nut, sapota, banana, mango, and blueberries. <P><P> Removing the research gap, this volume provides new information that will be valuable to those involved in micro irrigation engineering.
Engineering Invention: Frank J. Sprague and the U.S. Electrical Industry
by Frederick DalzellThe technological breakthroughs and entrepreneurial adventures of Frank J. Sprague during the transformative years of the early electrical industry. Over the course of a little less than twenty years, inventor Frank J. Sprague (1857-1934) achieved an astonishing series of technological breakthroughs—from pioneering work in self-governing motors to developing the first full-scale operational electric railway system—all while commercializing his inventions and promoting them (and himself as their inventor) to financial backers and the public. In Engineering Invention, Frederick Dalzell tells Sprague's story, setting it against the backdrop of one of the most dynamic periods in the history of technology. In a burst of innovation during these years, Sprague and his contemporaries—Thomas Edison, Nicolas Tesla, Elmer Sperry, George Westinghouse, and others—transformed the technologies of electricity and reshaped modern life. After working briefly for Edison, Sprague started the Sprague Electric Railway and Motor Company; designed and built an electric railroad system for Richmond, Virginia; sold his company to Edison and went into the field of electric elevators; almost accidentally discovered a multiple-control system that could equip electric train systems for mass transit; started a third company to commercialize this; then sold this company to Edison and retired (temporarily). Throughout his career, Dalzell tells us, Sprague framed technology as invention, cast himself as hero, and staged his technologies as dramas. He toiled against the odds, scraped together resources to found companies, bet those companies on technical feats—and pulled it off, multiple times. The idea of the “heroic inventor” is not, of course, the only way to frame the history of technology. Nevertheless, as Dalzell shows, Sprague, Edison, and others crafted the role consciously and actively, using it to generate vital impetus behind the process of innovation.