128 results (0,22646 seconds)

Brand

Merchant

Price (EUR)

Reset filter

Products
From
Shops

Handbook of Hydraulic Fluid Technology Second Edition

Handbook of Hydraulic Fluid Technology Second Edition

Detailing the major developments of the last decade the Handbook of Hydraulic Fluid Technology Second Edition updates the original and remains the most comprehensive and authoritative book on the subject. With all chapters either revised (in some cases completely) or expanded to account for new developments this book sets itself apart by approaching hydraulic fluids as a component of a system and focusing on key technological aspects. Written by experts from around the world the handbook covers all major classes of hydraulic fluids in detail delving into chemistry design fluid maintenance and selection and other key concepts. It also offers a rigorous overview of hydraulic fluid technology and evaluates the ecological benefits of water and its use as an important alternative technology. This complete overview discusses pumps and motors valves and reservoir design as well as fluid properties and associated topics. These include air entrainment modulus lubrication and wear assessment by bench and pump testing biodegradability and fire resistance. Contributors also present particularly important material on biodegradable fluids and the use of water as a hydraulic fluid. As the foremost resource on the design selection and testing of hydraulic systems and fluids used in engineering applications this book contains new illustrations data tables and practical examples all updated with essential information on the latest methods. To streamline presentation relevant content from the first edition has been integrated into this new version where appropriate. The result is a reference that helps readers develop an unparalleled understanding of the total hydraulic system including essential hardware fluid properties and hydraulic lubricants.

GBP 94.99
1

Numerical Simulation in Hydraulic Fracturing: Multiphysics Theory and Applications

Numerical Simulation in Hydraulic Fracturing: Multiphysics Theory and Applications

The expansion of unconventional petroleum resources in the recent decade and the rapid development of computational technology have provided the opportunity to develop and apply 3D numerical modeling technology to simulate the hydraulic fracturing of shale and tight sand formations. This book presents 3D numerical modeling technologies for hydraulic fracturing developed in recent years and introduces solutions to various 3D geomechanical problems related to hydraulic fracturing. In the solution processes of the case studies included in the book fully coupled multi-physics modeling has been adopted along with innovative computational techniques such as submodeling. In practice hydraulic fracturing is an essential project component in shale gas/oil development and tight sand oil and provides an essential measure in the process of drilling cuttings reinjection (CRI). It is also an essential measure for widened mud weight window (MWW) when drilling through naturally fractured formations; the process of hydraulic plugging is a typical application of hydraulic fracturing. 3D modeling and numerical analysis of hydraulic fracturing is essential for the successful development of tight oil/gas formations: it provides accurate solutions for optimized stage intervals in a multistage fracking job. It also provides optimized well-spacing for the design of zipper-frac wells. Numerical estimation of casing integrity under stimulation injection in the hydraulic fracturing process is one of major concerns in the successful development of unconventional resources. This topic is also investigated numerically in this book. Numerical solutions to several other typical geomechanics problems related to hydraulic fracturing such as fluid migration caused by fault reactivation and seismic activities are also presented. This book can be used as a reference textbook to petroleum geotechnical and geothermal engineers to senior undergraduate graduate and postgraduate students and to geologists hydrogeologists geophysicists and applied mathematicians working in this field. This book is also a synthetic compendium of both the fundamentals and some of the most advanced aspects of hydraulic fracturing technology. | Numerical Simulation in Hydraulic Fracturing: Multiphysics Theory and Applications

GBP 44.99
1

Design of Hydraulic Gates

Open Channel Hydraulics River Hydraulic Structures and Fluvial Geomorphology For Engineers Geomorphologists and Physical Geographers

Hydraulic Engineering of Dams

Descriptosaurus Punctuation in Action Years 4-6: Jack and the Crystal Fang

Descriptosaurus Punctuation in Action Years 4-6: Jack and the Crystal Fang

The only cure for a deadly plague sweeping the country is the crystal fang of a dragon that has terrorised the surrounding countryside for many years. Until now the location of its den on Dragon Ridge Mountain has remained a mystery. In a race against time Jack battles through a storm to reach the top of Dragon Ridge Mountain. With Merlin to guide him Jack enters the dragon’s den and comes face to face with the monstrous beast. This is a story of courage magic and one boy’s brave quest to fulfil a destiny foretold by the legends of long ago. Join Jack on his journey as he writes the story with the assistance of the magician Merlin and Punctua the Fairy Godmother of Writing to punctuate properly and become a bestselling author. Descriptosaurus Punctuation in Action Years 4–6: Jack and the Crystal Fang is part of a short series of age-specific beautifully illustrated stories that can be read for pleasure and/or used as a contextualised resource containing a step-by-step guide to teaching punctuation. The characters from each story are used to demonstrate a range of punctuation rules in a fun and engaging way appropriate to the book’s age group. Areas covered include: formulating punctuation rules. the use of misconceptions to highlight common errors. teaching tips to provide a punctuation model. The book explores the impact of punctuation on reading understanding meaning and effect and can be used as a basis for pupils’ own punctuation or included in their ‘Writer’s Toolkit. ’ These new Descriptosaurus stories are an indispensable teaching aid for making punctuation fun for all primary teachers and literacy coordinators. | Descriptosaurus Punctuation in Action Years 4-6: Jack and the Crystal Fang

GBP 11.99
1

Nuclear Systems Volume I Thermal Hydraulic Fundamentals Third Edition

Nuclear Systems Volume II Elements of Thermal Hydraulic Design

Nuclear Systems Volume II Elements of Thermal Hydraulic Design

This book provides advanced coverage of a wide variety of thermal fluid systems and technologies in nuclear power plants including discussions of the latest reactor designs and their thermal/fluid technologies. Beyond the thermal hydraulic design and analysis of the core of a nuclear reactor the book covers other components of nuclear power plants such as the pressurizer containment and the entire primary coolant system. Placing more emphasis on the appropriate models for small-scale resolution of the velocity and temperature fields through computational fluid mechanics the book shows how this enhances the accuracy of predicted operating conditions in nuclear plants. It introduces considerations of the laws of scaling and uncertainty analysis along with a wider coverage of the phenomena encountered during accidents. FEATURES Discusses fundamental ideas for various modeling approaches for the macro- and microscale flow conditions in reactors Covers specific design considerations such as natural convection and core reliability Enables readers to better understand the importance of safety considerations in thermal engineering and analysis of modern nuclear plants Features end-of-chapter problems Includes a solutions manual for adopting instructors This book serves as a textbook for advanced undergraduate and graduate students taking courses in nuclear engineering and studying thermal/hydraulic systems in nuclear power plants. | Nuclear Systems Volume II Elements of Thermal Hydraulic Design

GBP 110.00
1

Advanced DC/AC Inverters Applications in Renewable Energy

Advanced DC/AC Inverters Applications in Renewable Energy

DC/AC inversion technology is of vital importance for industrial applications including electrical vehicles and renewable energy systems which require a large number of inverters. In recent years inversion technology has developed rapidly with new topologies improving the power factor and increasing power efficiency. Proposing many novel approaches Advanced DC/AC Inverters: Applications in Renewable Energy describes advanced DC/AC inverters that can be used for renewable energy systems. The book introduces more than 100 topologies of advanced inverters originally developed by the authors including more than 50 new circuits. It also discusses recently published cutting-edge topologies. Novel PWM and Multilevel Inverters The book first covers traditional pulse-width-modulation (PWM) inverters before moving on to new quasi-impedance source inverters and soft-switching PWM inverters. It then examines multilevel DC/AC inverters which have overcome the drawbacks of PWM inverters and provide greater scope for industrial applications. The authors propose four novel multilevel inverters: laddered multilevel inverters super-lift modulated inverters switched-capacitor inverters and switched-inductor inverters. With simple structures and fewer components these inverters are well suited for renewable energy systems. Get the Best Switching Angles for Any Multilevel Inverter A key topic for multilevel inverters is the need to manage the switching angles to obtain the lowest total harmonic distortion (THD). The authors outline four methods for finding the best switching angles and use simulation waveforms to verify the design. The optimum switching angles for multilevel DC/AC inverters are also listed in tables for quick reference. Application Examples of DC/AC Inverters in Renewable Energy Systems Highlighting the importance of inverters in improving energy saving and power-supply quality the final chapter of the book supplies design examples for applications in wind turbine and solar panel energy systems. Written by pioneers in advanced conversion and inversion technology this book guides readers in designing more effective DC/AC inverters for use in renewable energy systems. | Advanced DC/AC Inverters Applications in Renewable Energy

GBP 77.99
1

Water Conservancy and Civil Construction SET Proceedings of the 4th International Conference on Hydraulic Civil and Construction Engineerin

Water Conservancy and Civil Construction Volume 2 Proceedings of the 4th International Conference on Hydraulic Civil and Construction Engin

Die Cast Engineering A Hydraulic Thermal and Mechanical Process

Optimization of Hydraulic Fracture Stages and Sequencing in Unconventional Formations

AC Motor Control and Electrical Vehicle Applications

DC/AC Electrical Fundamentals

Fish Swimming in Turbulent Waters Hydraulic Engineering Guidelines to assist Upstream Passage of Small-Bodied Fish Species in Standard Box

Fish Swimming in Turbulent Waters Hydraulic Engineering Guidelines to assist Upstream Passage of Small-Bodied Fish Species in Standard Box

Low-level river crossings including culverts are important for delivering a range of valuable socioeconomic services including transportation and hydrological control. These structures are also known to have negative impacts on freshwater river system morphology and ecology including the blockage of upstream fish passage particularly small-body-mass fish species. Given the enormous environmental problems created by road crossings new hydraulic engineering guidelines are proposed for fish-friendly multi-cell box culvert designs. The focus of these guidelines is on smooth box culverts without appurtenance with a novel approach based upon three basic concepts: (I) the culvert design is optimized for fish passage for small to medium water discharges and for flood capacity for larger discharges (II) low-velocity zones are provided along the wetted perimeter in the culvert barrel and quantified in terms of a fraction of the wetted flow area where the local longitudinal velocity is less than a characteristic fish speed linked to swimming performances of targeted fish species and (III) the culvert barrel is smooth without any other form of boundary treatment and appurtenance. The present monograph develops a number of practical considerations in particular relevant to box culvert operations for less-than-design discharges. It is argued that upstream fish passage capabilities would imply a revised approach to maintenance in part linked to the targeted fish species. This reference work is authored for civil and environmental engineers as well as biology and ecology scientists interested in culvert design. While the book is aimed to professionals the material is also lectured in postgraduate courses and in professional short courses. | Fish Swimming in Turbulent Waters Hydraulic Engineering Guidelines to assist Upstream Passage of Small-Bodied Fish Species in Standard Box

GBP 44.99
1

Short-Circuits in AC and DC Systems ANSI IEEE and IEC Standards

Modeling and Control of AC Machine using MATLAB /SIMULINK

Modeling and Control of AC Machine using MATLAB /SIMULINK

This book introduces electrical machine modeling and control for electrical engineering and science to graduate undergraduate students as well as researchers who are working on modeling and control of electrical machines. It targets electrical engineering students who have no time to derive mathematical equations for electrical machines in particular induction machine (IM) and doubly fed induction machines (DFIM). The main focus is on the application of field oriented control technique to induction motor (IM) and doubly fed induction motor (DFIM) in details and since the induction motors have many drawback using this technique therefore the application of a nonlinear control technique (feedback linearization) is applied to a reduced order model of DFIM to enhance the performance of doubly fed induction motor. FeaturesServes as text book for electrical motor modeling simulation and control; especially modeling of induction motor and doubly fed induction motor using different frame of references. Vector control (field oriented control) is given in more detailed and is applied to induction motor. A nonlinear controller is applied to a reduced model of an doubly induction motor associated with a linear observer to estimate the unmeasured load torque which is used to enhance the performance of the vector control to doubly fed induction motor. Access to the full MATLAB/SIMULINK blocks for simulation and control. | Modeling and Control of AC Machine using MATLAB®/SIMULINK

GBP 18.99
1

Workplace Culture Matters Developing Leaders Who Respect People and Deliver Robust Results

Workplace Culture Matters Developing Leaders Who Respect People and Deliver Robust Results

Written in a novel format this book addresses the challenge of changing a sick culture. Some organizations wake up one day and realize they have become something they never intended. Their employees run scared. There is no innovation only blind obedience. There are warlords within the ranks of management and they fight over turf without considering the best interests of customers their employees or their organization as a whole. At the Charleston SC branch of Copper-Bottom Insurance the wakeup call comes when an employee files a lawsuit against the company and its leaders. The Charleston division Vice President Jack Simmons is put on probation and given an ultimatum: Change the culture! Jack understands the or be fired implication all too well. He scrambles to find help and runs into an old friend Don Spears from Friedman Electronics. With Don’s help Jack begins the journey that will heal his organization. In the course of their first visit Don and his Director of Continuous Improvement Tim Stark help Jack to make an important discovery: Copper-Bottom’s executives are not showing their people respect. Don and Tim point to the following observations as proof. Copper-Bottom leaders are Using top-down command-and-control leadership behaviors rather than recognizing their people as Subject Matter Experts and listening to them Issuing instructions to their people rather than observing then improving performance through coaching Keeping employees in the dark as to the impact their work has on the organization’s mission Unaware of the obstacles in their people’s paths; hence never using the authority of their positions to remove those obstacles Staying in their offices aloof to the difficulties their subordinates face As Don and Tim see it Copper-Bottom’s problems stem from the way its leaders lead. After the executive who precipitated the lawsuit is let go the Friedman team begins the process of teaching Copper-Bottom’s executives that a healthy culture begins at the leadership level. Don Friedman’s General Manager states that cultures change when their leaders change. In short leaders need to initiate the changes in the culture by first demonstrating the desired behavior. So begins the process of reeducating Copper-Bottom’s leaders in the difference between managing and leading. In short order Tim begins to work with Jack’s leadership team while Don takes Jack to Friedman’s Oakland facility. There Jack learns To first concentrate on surrounding himself with the right people The importance of top-down metrics to which leaders first hold themselves accountable Cascading their metrics (KPIs) down through their organization and using a dialog about them as a way of developing relationships of respect Although a long way from complete by the end of Jack’s six-month probation Copper-Bottom has made significant strides and is well on its way to changing its culture. Jack will learn that he is not the only one to appreciate the new developments. | Workplace Culture Matters Developing Leaders Who Respect People and Deliver Robust Results

GBP 26.99
1

Simulation of Fluid Power Systems with Simcenter Amesim

Design of Hydrodynamic Machines Pumps and Hydro-Turbines

Recovering Boarding School Trauma Narratives Christopher Robin Milne as a Psychological Companion on the Journey to Healing

Recovering Boarding School Trauma Narratives Christopher Robin Milne as a Psychological Companion on the Journey to Healing

Recovering Boarding School Trauma Narratives: Christopher Robin Milne as a Psychological Companion on the Journey to Healing is a unique emotive and theorised narrative of a young girl’s experience of boarding school in Australia. Christine Jack traces its impact on the emerging identity of the child including sexual development and emotional capacity the transmission of trauma into adulthood and the long process of recovery. Interweaving her story with the experiences of Christopher Robin Milne she presents her memoir as an exemplar of how narrative writing can be employed in remembering and recovering from traumatic experiences. Unique and powerfully written Jack takes the reader on a journey into her childhood in Australian boarding school convents in the 1950s and 1960s. Comparing her experience with Christopher Robin Milne’s she interrogates his memoirs illustrating that boarding school trauma knows no boundaries of time and place. She investigates their emerging individuality before being sent to live an institutional life and traces their feelings of longing and loneliness as well as the impact of the abuse each endured there. As an educational historian Jack writes in a ground-breaking way from the perspective of an insider and outsider revealing how trauma remains in the unconscious wielding power over the life of the adult until the traumatic memories are recovered emotions released and associated dysfunctional behaviour changed restoring well-being. Engaging the lenses of history life-span and Jungian psychology feminist and trauma theory and boarding school trauma research this book positions narrative writing as a way of reducing the power of trauma over the lives of survivors. Personal and accessible this book will be essential reading for psychologists and educational historians as well as students and academics of psychology sociology trauma studies ex-boarders and those interested in the life of Christopher Robin Milne. | Recovering Boarding School Trauma Narratives Christopher Robin Milne as a Psychological Companion on the Journey to Healing

GBP 32.99
1