Author: Ibrahim Yahia Yaagoob
Publisher: John Wiley & Sons
ISBN: 1394191170
Category : Technology & Engineering
Languages : en
Pages : 596
Book Description
Learn the synthesis, characterization, scaling mechanisms, and applications of green antiscalants to be utilized in modern industrial platforms Scale formation, or mineral accumulation on the interior surfaces of water lines and containers, is a serious and expensive hazard in numerous industries. The prevention and elimination of scales has long been a major project demanding the production of antiscalant materials; increasing awareness of the toxicity of traditional antiscalants, however, and rising environmental consciousness has increased demand for green antiscalants. It's an exciting time for new chemists and chemical engineers to get involved in this growing field. Industrial Scale Inhibition provides a comprehensive introduction to existing and ongoing developments in green antiscalants. With coverage of synthesis, characterization, and many more subjects, it promises to make a serious contribution to environmentally conscious industry. The range of environmentally alternatives to traditional toxic antiscalants is explored and analyzed in this crucial volume. Industrial Scale Inhibition readers will also find: Detailed coverage of both synthetic and natural antiscalants Up-to-date reference material including pertinent websites and connections to the latest research Analysis of plant extracts, natural polymers, oleochemicals, and many more Industrial Scale Inhibition is a useful reference for chemists and chemical engineers working in research and development and academia, as well as high-level researchers working in the fields of material science and engineering, nanotechnology, energy, environment, colloid sciences, among others.
Industrial Scale Inhibition: Principles, Design, and Applications
Author: Ibrahim Yahia Yaagoob
Publisher: John Wiley & Sons
ISBN: 1394191170
Category : Technology & Engineering
Languages : en
Pages : 596
Book Description
Learn the synthesis, characterization, scaling mechanisms, and applications of green antiscalants to be utilized in modern industrial platforms Scale formation, or mineral accumulation on the interior surfaces of water lines and containers, is a serious and expensive hazard in numerous industries. The prevention and elimination of scales has long been a major project demanding the production of antiscalant materials; increasing awareness of the toxicity of traditional antiscalants, however, and rising environmental consciousness has increased demand for green antiscalants. It's an exciting time for new chemists and chemical engineers to get involved in this growing field. Industrial Scale Inhibition provides a comprehensive introduction to existing and ongoing developments in green antiscalants. With coverage of synthesis, characterization, and many more subjects, it promises to make a serious contribution to environmentally conscious industry. The range of environmentally alternatives to traditional toxic antiscalants is explored and analyzed in this crucial volume. Industrial Scale Inhibition readers will also find: Detailed coverage of both synthetic and natural antiscalants Up-to-date reference material including pertinent websites and connections to the latest research Analysis of plant extracts, natural polymers, oleochemicals, and many more Industrial Scale Inhibition is a useful reference for chemists and chemical engineers working in research and development and academia, as well as high-level researchers working in the fields of material science and engineering, nanotechnology, energy, environment, colloid sciences, among others.
Publisher: John Wiley & Sons
ISBN: 1394191170
Category : Technology & Engineering
Languages : en
Pages : 596
Book Description
Learn the synthesis, characterization, scaling mechanisms, and applications of green antiscalants to be utilized in modern industrial platforms Scale formation, or mineral accumulation on the interior surfaces of water lines and containers, is a serious and expensive hazard in numerous industries. The prevention and elimination of scales has long been a major project demanding the production of antiscalant materials; increasing awareness of the toxicity of traditional antiscalants, however, and rising environmental consciousness has increased demand for green antiscalants. It's an exciting time for new chemists and chemical engineers to get involved in this growing field. Industrial Scale Inhibition provides a comprehensive introduction to existing and ongoing developments in green antiscalants. With coverage of synthesis, characterization, and many more subjects, it promises to make a serious contribution to environmentally conscious industry. The range of environmentally alternatives to traditional toxic antiscalants is explored and analyzed in this crucial volume. Industrial Scale Inhibition readers will also find: Detailed coverage of both synthetic and natural antiscalants Up-to-date reference material including pertinent websites and connections to the latest research Analysis of plant extracts, natural polymers, oleochemicals, and many more Industrial Scale Inhibition is a useful reference for chemists and chemical engineers working in research and development and academia, as well as high-level researchers working in the fields of material science and engineering, nanotechnology, energy, environment, colloid sciences, among others.
Eco-Friendly Corrosion Inhibitors
Author: Lei Guo
Publisher: Elsevier
ISBN: 0323998429
Category : Technology & Engineering
Languages : en
Pages : 578
Book Description
Eco-Friendly Corrosion Inhibitors: Principles, Designing, and Applications wraps up new developments in corrosion inhibitors and their current applications in real-life environments such as in strong acidic pickling and petroleum-based liquids. The book covers several types of environmentally-friendly corrosion inhibitors in detail. In addition, it highlights both established research and technology on industrial scale corrosion inhibitors and their rapidly emerging aspects and future research directions. - Provides fundamental basics and applied practices of corrosion prevention at industrial scale - Serves as a valuable reference for scientists and engineers who are searching modern design for industrial scale corrosion inhibitors - Focuses on the most advanced industrial scale corrosion inhibitors, including current challenges during manufacturing - Includes up-to-date reference material such as websites of interest and information about the latest research
Publisher: Elsevier
ISBN: 0323998429
Category : Technology & Engineering
Languages : en
Pages : 578
Book Description
Eco-Friendly Corrosion Inhibitors: Principles, Designing, and Applications wraps up new developments in corrosion inhibitors and their current applications in real-life environments such as in strong acidic pickling and petroleum-based liquids. The book covers several types of environmentally-friendly corrosion inhibitors in detail. In addition, it highlights both established research and technology on industrial scale corrosion inhibitors and their rapidly emerging aspects and future research directions. - Provides fundamental basics and applied practices of corrosion prevention at industrial scale - Serves as a valuable reference for scientists and engineers who are searching modern design for industrial scale corrosion inhibitors - Focuses on the most advanced industrial scale corrosion inhibitors, including current challenges during manufacturing - Includes up-to-date reference material such as websites of interest and information about the latest research
Phytochemistry in Corrosion Science
Author: Chandrabhan Verma
Publisher: CRC Press
ISBN: 1003849733
Category : Science
Languages : en
Pages : 553
Book Description
Phytochemistry in Corrosion Science covers the use of plant extracts/phytochemicals in corrosion mitigation with industrial applications. It explores innovative and characterization approaches toward the utilization of plant extracts and their phytochemicals as potential corrosion inhibitors for several metals and their alloys. Providing a comprehensive overview of the green aspects of plant extracts as corrosion inhibitors, this book discusses the preparation of aqueous and organic phase extracts, and their advantages, disadvantages, and use for different aggressive media. It also examines aqueous and organic extracts that have been successfully used as corrosion inhibitors for various metals and electrolyte combinations. This book will be a useful reference for undergraduate and graduate students and academic researchers in the fields of phytochemistry, corrosion science and engineering, environmental science, chemical engineering, green chemistry, and mechanical/industrial engineering.
Publisher: CRC Press
ISBN: 1003849733
Category : Science
Languages : en
Pages : 553
Book Description
Phytochemistry in Corrosion Science covers the use of plant extracts/phytochemicals in corrosion mitigation with industrial applications. It explores innovative and characterization approaches toward the utilization of plant extracts and their phytochemicals as potential corrosion inhibitors for several metals and their alloys. Providing a comprehensive overview of the green aspects of plant extracts as corrosion inhibitors, this book discusses the preparation of aqueous and organic phase extracts, and their advantages, disadvantages, and use for different aggressive media. It also examines aqueous and organic extracts that have been successfully used as corrosion inhibitors for various metals and electrolyte combinations. This book will be a useful reference for undergraduate and graduate students and academic researchers in the fields of phytochemistry, corrosion science and engineering, environmental science, chemical engineering, green chemistry, and mechanical/industrial engineering.
Computational Modelling and Simulations for Designing of Corrosion Inhibitors
Author: Dakeshwar Kumar Verma
Publisher: Elsevier
ISBN: 0323951627
Category : Technology & Engineering
Languages : en
Pages : 566
Book Description
Computational Modeling and Simulations for Designing of Corrosion Inhibitors: Fundamentals and Realistic Applications offers a collection of major advancements in the field of computational modeling for the design and testing of corrosion inhibition effectiveness of organic corrosion inhibitors. This guide presents the latest developments in molecular modeling of organic compounds using computational software, which has emerged as a powerful approach for theoretical determination of corrosion inhibition potentials of organic compounds. The book covers common techniques involved in theoretical studies of corrosion inhibition potentials, and mechanisms such as density functional theory, molecular dynamics, Monte Carlo simulations, artificial neural networks, and quantitative structure-activity relationship. - Covers basic, fundamental principles, advantages, parameters, and applications of computational and molecular modeling for designing potential corrosion inhibitors for metals and alloys - Describes advancements of computational modeling for the design of organic corrosion inhibitors and applications in electrochemical engineering and materials science - Focuses on the most advanced applications in industry-oriented fields, including current challenges - Includes websites of interest and information about the latest research
Publisher: Elsevier
ISBN: 0323951627
Category : Technology & Engineering
Languages : en
Pages : 566
Book Description
Computational Modeling and Simulations for Designing of Corrosion Inhibitors: Fundamentals and Realistic Applications offers a collection of major advancements in the field of computational modeling for the design and testing of corrosion inhibition effectiveness of organic corrosion inhibitors. This guide presents the latest developments in molecular modeling of organic compounds using computational software, which has emerged as a powerful approach for theoretical determination of corrosion inhibition potentials of organic compounds. The book covers common techniques involved in theoretical studies of corrosion inhibition potentials, and mechanisms such as density functional theory, molecular dynamics, Monte Carlo simulations, artificial neural networks, and quantitative structure-activity relationship. - Covers basic, fundamental principles, advantages, parameters, and applications of computational and molecular modeling for designing potential corrosion inhibitors for metals and alloys - Describes advancements of computational modeling for the design of organic corrosion inhibitors and applications in electrochemical engineering and materials science - Focuses on the most advanced applications in industry-oriented fields, including current challenges - Includes websites of interest and information about the latest research
The Science and Technology of Industrial Water Treatment
Author: Zahid Amjad
Publisher: CRC Press
ISBN: 1420071459
Category : Science
Languages : en
Pages : 532
Book Description
Mineral scale deposits, corrosion, suspended matter, and microbiological growth are factors that must be controlled in industrial water systems. Research on understanding the mechanisms of these problems has attracted considerable attention in the past three decades as has progress concerning water treatment additives to ameliorate these concerns.
Publisher: CRC Press
ISBN: 1420071459
Category : Science
Languages : en
Pages : 532
Book Description
Mineral scale deposits, corrosion, suspended matter, and microbiological growth are factors that must be controlled in industrial water systems. Research on understanding the mechanisms of these problems has attracted considerable attention in the past three decades as has progress concerning water treatment additives to ameliorate these concerns.
Green Corrosion Inhibitors
Author: V. S. Sastri
Publisher: John Wiley & Sons
ISBN: 111801541X
Category : Technology & Engineering
Languages : en
Pages : 267
Book Description
A book to cover developments in corrosion inhibitors is long overdue. This has been addressed by Dr Sastri in a book which presents fundamental aspects of corrosion inhibition, historical developments and the industrial applications of inhibitors. The book deals with the electrochemical principles and chemical aspects of corrosion inhibition, such as stability of metal complexes, the Hammett equation, hard and soft acid and base principle, quantum chemical aspects and Hansch' s model and also with the various surface analysis techniques, e.g. XPS, Auger, SIMS and Raman spectroscopy, that are used in industry for corrosion inhibition. The applications of corrosion inhibition are wide ranging. Examples given in this book include: oil and gas wells, petrochemical plants, steel reinforced cement, water cooling systems, and many more. The final chapters discuss economic and environmental considerations which are now of prime importance. The book is written for researchers in academia and industry, practicing corrosion engineers and students of materials science, engineering and applied chemistry.
Publisher: John Wiley & Sons
ISBN: 111801541X
Category : Technology & Engineering
Languages : en
Pages : 267
Book Description
A book to cover developments in corrosion inhibitors is long overdue. This has been addressed by Dr Sastri in a book which presents fundamental aspects of corrosion inhibition, historical developments and the industrial applications of inhibitors. The book deals with the electrochemical principles and chemical aspects of corrosion inhibition, such as stability of metal complexes, the Hammett equation, hard and soft acid and base principle, quantum chemical aspects and Hansch' s model and also with the various surface analysis techniques, e.g. XPS, Auger, SIMS and Raman spectroscopy, that are used in industry for corrosion inhibition. The applications of corrosion inhibition are wide ranging. Examples given in this book include: oil and gas wells, petrochemical plants, steel reinforced cement, water cooling systems, and many more. The final chapters discuss economic and environmental considerations which are now of prime importance. The book is written for researchers in academia and industry, practicing corrosion engineers and students of materials science, engineering and applied chemistry.
Environmentally Sustainable Corrosion Inhibitors
Author: Chandrabhan Verma
Publisher: Elsevier
ISBN: 0323900704
Category : Technology & Engineering
Languages : en
Pages : 475
Book Description
Environmentally Sustainable Corrosion Inhibitors: Fundamentals and Industrial Applications covers the latest research developments in environmentally friendly, sustainable corrosion inhibitors. The book addresses the fundamental characteristics, synthesis, characterization and mechanisms of corrosion inhibitors. In addition, it presents a chronological overview of the growth of the field, with numerous examples of its broad-ranging industrial applications in a.o. food, the environment, electronics, and the oil and gas industries. The book concludes with discussions about commercialization and economics. This is an indispensable reference for chemical engineers and chemists working in R&D and academia who want to learn more about environmentally-friendly, sustainable corrosion inhibitors systems. - Explains how to use environmentally-friendly, sustainable corrosion inhibitors in modern industry and manufacturing - Promotes corrosion inhibitors as a prime option for sustainable and transformational opportunities - Provides up-to-date reference material, including websites of interest and information on the latest research
Publisher: Elsevier
ISBN: 0323900704
Category : Technology & Engineering
Languages : en
Pages : 475
Book Description
Environmentally Sustainable Corrosion Inhibitors: Fundamentals and Industrial Applications covers the latest research developments in environmentally friendly, sustainable corrosion inhibitors. The book addresses the fundamental characteristics, synthesis, characterization and mechanisms of corrosion inhibitors. In addition, it presents a chronological overview of the growth of the field, with numerous examples of its broad-ranging industrial applications in a.o. food, the environment, electronics, and the oil and gas industries. The book concludes with discussions about commercialization and economics. This is an indispensable reference for chemical engineers and chemists working in R&D and academia who want to learn more about environmentally-friendly, sustainable corrosion inhibitors systems. - Explains how to use environmentally-friendly, sustainable corrosion inhibitors in modern industry and manufacturing - Promotes corrosion inhibitors as a prime option for sustainable and transformational opportunities - Provides up-to-date reference material, including websites of interest and information on the latest research
Organic Corrosion Inhibitors
Author: Chandrabhan Verma
Publisher: John Wiley & Sons
ISBN: 111979448X
Category : Technology & Engineering
Languages : en
Pages : 530
Book Description
Provides comprehensive coverage of organic corrosion inhibitors used in modern industrial platforms, including current developments in the design of promising classes of organic corrosion inhibitors Corrosion is the cause of significant economic and safety-related problems that span across industries and applications, including production and processing operations, transportation and public utilities infrastructure, and oil and gas exploration. The use of organic corrosion inhibitors is a simple and cost-effective method for protecting processes, machinery, and materials while remaining environmentally acceptable. Organic Corrosion Inhibitors: Synthesis, Characterization, Mechanism, and Applications provides up-to-date coverage of all aspects of organic corrosion inhibitors, including their fundamental characteristics, synthesis, characterization, inhibition mechanism, and industrial applications. Divided into five sections, the text first covers the basics of corrosion and prevention, experimental and computational testing, and the differences between organic and inorganic corrosion inhibitors. The next section describes various heterocyclic and non-heterocyclic corrosion inhibitors, followed by discussion of the corrosion inhibition characteristics of carbohydrates, amino acids, and other organic green corrosion inhibitors. The final two sections examine the corrosion inhibition properties of carbon nanotubes and graphene oxide, and review the application of natural and synthetic polymers as corrosion inhibitors. Featuring contributions by leading researchers and scientists from academia and industry, this authoritative volume: Discusses the latest developments and issues in the area of corrosion inhibition, including manufacturing challenges and new industrial applications Explores the development and implementation of environmentally-friendly alternatives to traditional toxic corrosion inhibitors Covers both established and emerging classes of corrosion inhibitors as well as future research directions Describes the anticorrosive mechanisms and effects of acyclic, cyclic, natural, and synthetic corrosion inhibitors Offering an interdisciplinary approach to the subject, Organic Corrosion Inhibitors: Synthesis, Characterization, Mechanism, and Applications is essential reading for chemists, chemical engineers, researchers, industry professionals, and advanced students working in fields such as corrosion inhibitors, corrosion engineering, materials science, and applied chemistry.
Publisher: John Wiley & Sons
ISBN: 111979448X
Category : Technology & Engineering
Languages : en
Pages : 530
Book Description
Provides comprehensive coverage of organic corrosion inhibitors used in modern industrial platforms, including current developments in the design of promising classes of organic corrosion inhibitors Corrosion is the cause of significant economic and safety-related problems that span across industries and applications, including production and processing operations, transportation and public utilities infrastructure, and oil and gas exploration. The use of organic corrosion inhibitors is a simple and cost-effective method for protecting processes, machinery, and materials while remaining environmentally acceptable. Organic Corrosion Inhibitors: Synthesis, Characterization, Mechanism, and Applications provides up-to-date coverage of all aspects of organic corrosion inhibitors, including their fundamental characteristics, synthesis, characterization, inhibition mechanism, and industrial applications. Divided into five sections, the text first covers the basics of corrosion and prevention, experimental and computational testing, and the differences between organic and inorganic corrosion inhibitors. The next section describes various heterocyclic and non-heterocyclic corrosion inhibitors, followed by discussion of the corrosion inhibition characteristics of carbohydrates, amino acids, and other organic green corrosion inhibitors. The final two sections examine the corrosion inhibition properties of carbon nanotubes and graphene oxide, and review the application of natural and synthetic polymers as corrosion inhibitors. Featuring contributions by leading researchers and scientists from academia and industry, this authoritative volume: Discusses the latest developments and issues in the area of corrosion inhibition, including manufacturing challenges and new industrial applications Explores the development and implementation of environmentally-friendly alternatives to traditional toxic corrosion inhibitors Covers both established and emerging classes of corrosion inhibitors as well as future research directions Describes the anticorrosive mechanisms and effects of acyclic, cyclic, natural, and synthetic corrosion inhibitors Offering an interdisciplinary approach to the subject, Organic Corrosion Inhibitors: Synthesis, Characterization, Mechanism, and Applications is essential reading for chemists, chemical engineers, researchers, industry professionals, and advanced students working in fields such as corrosion inhibitors, corrosion engineering, materials science, and applied chemistry.
Industrial Scale Suspension Culture of Living Cells
Author: Hans-Peter Meyer
Publisher: John Wiley & Sons
ISBN: 3527335471
Category : Science
Languages : en
Pages : 642
Book Description
The submersed cultivation of organisms in sterile containments or fermenters has become the standard manufacturing procedure, and will remain the gold standard for some time to come. This book thus addresses submersed cell culture and fermentation and its importance for the manufacturing industry. It goes beyond expression systems and integrally investigates all those factors relevant for manufacturing using suspension cultures. In so doing, the contributions cover all industrial cultivation methods in a comprehensive and comparative manner, with most of the authors coming from the industry itself. Depending on the maturity of the technology, the chapters address in turn the expression system, basic process design, key factors affecting process economics, plant and bioreactor design, and regulatory aspects.
Publisher: John Wiley & Sons
ISBN: 3527335471
Category : Science
Languages : en
Pages : 642
Book Description
The submersed cultivation of organisms in sterile containments or fermenters has become the standard manufacturing procedure, and will remain the gold standard for some time to come. This book thus addresses submersed cell culture and fermentation and its importance for the manufacturing industry. It goes beyond expression systems and integrally investigates all those factors relevant for manufacturing using suspension cultures. In so doing, the contributions cover all industrial cultivation methods in a comprehensive and comparative manner, with most of the authors coming from the industry itself. Depending on the maturity of the technology, the chapters address in turn the expression system, basic process design, key factors affecting process economics, plant and bioreactor design, and regulatory aspects.
Chemical Engineering Design
Author: Gavin Towler
Publisher: Elsevier
ISBN: 0080966608
Category : Technology & Engineering
Languages : en
Pages : 1321
Book Description
Chemical Engineering Design, Second Edition, deals with the application of chemical engineering principles to the design of chemical processes and equipment. Revised throughout, this edition has been specifically developed for the U.S. market. It provides the latest US codes and standards, including API, ASME and ISA design codes and ANSI standards. It contains new discussions of conceptual plant design, flowsheet development, and revamp design; extended coverage of capital cost estimation, process costing, and economics; and new chapters on equipment selection, reactor design, and solids handling processes. A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data, and Excel spreadsheet calculations, plus over 150 Patent References for downloading from the companion website. Extensive instructor resources, including 1170 lecture slides and a fully worked solutions manual are available to adopting instructors. This text is designed for chemical and biochemical engineering students (senior undergraduate year, plus appropriate for capstone design courses where taken, plus graduates) and lecturers/tutors, and professionals in industry (chemical process, biochemical, pharmaceutical, petrochemical sectors). New to this edition: - Revised organization into Part I: Process Design, and Part II: Plant Design. The broad themes of Part I are flowsheet development, economic analysis, safety and environmental impact and optimization. Part II contains chapters on equipment design and selection that can be used as supplements to a lecture course or as essential references for students or practicing engineers working on design projects. - New discussion of conceptual plant design, flowsheet development and revamp design - Significantly increased coverage of capital cost estimation, process costing and economics - New chapters on equipment selection, reactor design and solids handling processes - New sections on fermentation, adsorption, membrane separations, ion exchange and chromatography - Increased coverage of batch processing, food, pharmaceutical and biological processes - All equipment chapters in Part II revised and updated with current information - Updated throughout for latest US codes and standards, including API, ASME and ISA design codes and ANSI standards - Additional worked examples and homework problems - The most complete and up to date coverage of equipment selection - 108 realistic commercial design projects from diverse industries - A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data and Excel spreadsheet calculations plus over 150 Patent References, for downloading from the companion website - Extensive instructor resources: 1170 lecture slides plus fully worked solutions manual available to adopting instructors
Publisher: Elsevier
ISBN: 0080966608
Category : Technology & Engineering
Languages : en
Pages : 1321
Book Description
Chemical Engineering Design, Second Edition, deals with the application of chemical engineering principles to the design of chemical processes and equipment. Revised throughout, this edition has been specifically developed for the U.S. market. It provides the latest US codes and standards, including API, ASME and ISA design codes and ANSI standards. It contains new discussions of conceptual plant design, flowsheet development, and revamp design; extended coverage of capital cost estimation, process costing, and economics; and new chapters on equipment selection, reactor design, and solids handling processes. A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data, and Excel spreadsheet calculations, plus over 150 Patent References for downloading from the companion website. Extensive instructor resources, including 1170 lecture slides and a fully worked solutions manual are available to adopting instructors. This text is designed for chemical and biochemical engineering students (senior undergraduate year, plus appropriate for capstone design courses where taken, plus graduates) and lecturers/tutors, and professionals in industry (chemical process, biochemical, pharmaceutical, petrochemical sectors). New to this edition: - Revised organization into Part I: Process Design, and Part II: Plant Design. The broad themes of Part I are flowsheet development, economic analysis, safety and environmental impact and optimization. Part II contains chapters on equipment design and selection that can be used as supplements to a lecture course or as essential references for students or practicing engineers working on design projects. - New discussion of conceptual plant design, flowsheet development and revamp design - Significantly increased coverage of capital cost estimation, process costing and economics - New chapters on equipment selection, reactor design and solids handling processes - New sections on fermentation, adsorption, membrane separations, ion exchange and chromatography - Increased coverage of batch processing, food, pharmaceutical and biological processes - All equipment chapters in Part II revised and updated with current information - Updated throughout for latest US codes and standards, including API, ASME and ISA design codes and ANSI standards - Additional worked examples and homework problems - The most complete and up to date coverage of equipment selection - 108 realistic commercial design projects from diverse industries - A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data and Excel spreadsheet calculations plus over 150 Patent References, for downloading from the companion website - Extensive instructor resources: 1170 lecture slides plus fully worked solutions manual available to adopting instructors