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Author: Derek Zobel
Publisher: Bellwether Media
ISBN: 1612110479
Category : Juvenile Nonfiction
Languages : en
Pages : 26
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Book Description
These mighty machines move big piles of material from one place to another. Some wheel loaders have a huge claw called a grapple to grab things like logs. This book explains how a wheel loader works and what it transports.
Author: Derek Zobel
Publisher: Bellwether Media
ISBN: 1612110479
Category : Juvenile Nonfiction
Languages : en
Pages : 26
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Book Description
These mighty machines move big piles of material from one place to another. Some wheel loaders have a huge claw called a grapple to grab things like logs. This book explains how a wheel loader works and what it transports.
Author: Keith Haddock
Publisher:
ISBN: 9781610592093
Category : Earthmoving machinery
Languages : en
Pages : 324
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Book Description
"This colossal reference book documents the timeless urge to reshape the world, and the machines used to do so from the 1088's to today. From utility tractors and loaders up to the largest diggers and bulldozers, every piece of heavy equipment is listed here by model and manufacturer, making this the most exhaustive book on the world's most hard-working vehicles and machines"--Publisher's description.
Author: Bruce A. Kennedy
Publisher: SME
ISBN: 9780873351027
Category : Reference
Languages : en
Pages : 1214
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Book Description
This SME classic is both a reference book for the working engineer and a textbook for the mining student. This hardcover edition gives a brief history of surface mining and a general overview of the state of surface mining today--topics range from production and productivity to technological developments and trends in equipment. This extremely useful text takes the approach that exploration and mining geologists must be expert in a number of fields, including basic finance and economics, logistics, and pragmatic prospecting. Readers will find material on all these topics and more. The book's nine chapters include: Introduction, Exploration and Geology Techniques, Ore Reserve Estimation, Feasibility Studies and Project Financing, Planning and Design of Surface Mines, Mine Operations, Mine Capital and Operating Costs, Management and Organization, and Case Studies. The book is fully indexed.
Author: Keith Haddock
Publisher:
ISBN: 9781610605861
Category :
Languages : en
Pages : 228
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Book Description
Author: David A. Day
Publisher: John Wiley & Sons
ISBN: 9780471888406
Category : Technology & Engineering
Languages : en
Pages : 466
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Book Description
With the construction boom reaching over $300 billion by the early 1990s in the United States alone, this comprehensive and accessible guide is more important than ever for the budget-minded contractor. Presenting quick engineering know-how for the performance and satisfactory completion of construction using commonly recognized equipment, it deals with the physical concepts of the work, the surrounding conditions and equipment requirements, with an emphasis on controls governing the equipment's performance.
Author: Eric C. Orlemann
Publisher:
ISBN: 9781610605885
Category : Earthmoving machinery
Languages : en
Pages : 164
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Book Description
This book examines the Texas-based company's heavy equipment that has been used in the mining, construction, and oil industries from the 1920s to present. Two hundred photos illustrate the fascinating tales behind LeTourneau breakthroughs like the first electric-diesel front-end loader. Founder Robert Gilmour LeTourneau is regarded as the father of high-volume earthmoving equipment, and holds more U.S. patents than any other person, save Thomas Edison. Fans of heavy equipment are sure to enjoy this profile of the manufacturer of the world's largest front-end loaders.
Author: David K. Denton
Publisher:
ISBN:
Category : Cyanide process
Languages : en
Pages : 92
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Book Description
The U.S. Bureau of Mines report presents the documentation for HEAPREC. a methodology for calculating reclamation performance bonds for cyanide heap leach operations. HEAPREC is a template developed for use with Lotus 1-2-3 release 2.01 or newer software. The report is presented in step-by-step "user's manual" format. Appendixes contain detailed background and reference material on performance bonding, cyanide detoxification regulation, cyanide detoxification methods, general mine reclamation procedures, and an example bond calculation.
Author: Vaheed Nezhadali
Publisher: Linköping University Electronic Press
ISBN: 9176857484
Category :
Languages : en
Pages : 52
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Book Description
Heavy duty powertrains are complex systems with components from various domains, different response times during transient operations and different efficient operating ranges. To ensure efficient transient operation of a powertrain, e.g. with low fuel consumption or short transient duration, it is important to come up with proper control strategies. In this dissertation, optimal control theory is used to calculate and analyze efficient heavy duty powertrain controls during transient operations in different applications. This is enabled by first developing control ready models, usable for multi-phase optimal control problem formulations, and then using numerical optimal control methods to calculate the optimal transients. Optimal control analysis of a wheel loader operating in a repetitive loading cycle is the first studied application. Increasing fuel efficiency or reducing the operation time in such repetitive loading cycles sums up to large savings over longer periods of time. Load lifting and vehicle traction consume almost all of the power produced by a diesel engine during wheel loader operation. Physical models are developed for these subsystems where the dynamics are described by differential equations. The model parameters are tuned and fuel consumption estimation is validated against measured values from real wheel loader operation. The sensitivity of wheel loader trajectory with respect to constrains such as the angle at which the wheel loader reaches the unloading position is also analyzed. A time and fuel optimal trajectory map is calculated for various unloading positions. Moreover, the importance of simultaneous optimization of wheel loader trajectory and the component transients is shown via a side to side comparison between measured fuel consumption and trajectories versus optimal control results. In another application, optimal control is used to calculate efficient gear shift controls for a heavy duty Automatic Transmission system. A modeling and optimal control framework is developed for a nine speed automatic transmission. Solving optimal control problems using the developed model, time and jerk efficient transient for simultaneous disengagement of off-going and engagement of in-coming shift actuators are obtained and the results are analyzed. Optimal controls of a diesel-electric powertrain during a gear shift in an Automated Manual Transmission system are calculated and analyzed in another application of optimal control. The powertrain model is extended by including driveline backlash angle as an extra state in the system. This is enabled by implementation of smoothing techniques in order to describe backlash dynamics as a single continuous function during all gear shift phases. Optimal controls are also calculated for a diesel-electric powertrain corresponding to a hybrid bus during a tip-in maneuver. It is shown that for optimal control analysis of complex powertrain systems, minimizing only one property such as time pushes the system transients into extreme operating conditions far from what is achievable in real applications. Multi-objective optimal control problem formulations are suggested in order to obtain a compromise between various objectives when analyzing such complex powertrain systems.
Author: Eric C. Orlemann
Publisher:
ISBN: 9781610605762
Category :
Languages : en
Pages : 132
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Book Description
Author: Tran Trong Dao
Publisher: Springer Nature
ISBN: 9819987032
Category :
Languages : en
Pages : 738
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Book Description
