Extractive Metallurgy 3. Processing Operations and Routes

This book is dedicated to the processes of mineral transformation, recycling and reclamation of metals, for the purpose of turning metals and alloys into a liquid state ready for pouring. Even though «process metallurgy» is one of the oldest technologies implemented by man, technological innovation, with the development of processes that are both focused on product quality and economically and ecologically efficient, continues to be at the heart of these industries. This book explains the physico-chemical bases of transformations, vital to their understanding and control (optimization of operational conditions), and the foundations in terms of «process engineering» (heat and matter assessment, process coupling: chemical reactions and transport phenomena), vital to the optimal execution and analysis of transformation process operations. This book is addressed to students in the field of metallurgy and to engineers facing the problem of metal and alloy development (operation of an industrial unit or development of a new process).

The Extractive Metallurgy series is devoted to the extraction of metals from ores and other sources, their refining to the state of either liquid or solid metal, and the various processes needed to carry out these operations. Using the methodology of chemical reaction engineering, this second volume in the series examines on the metallurgical reaction processes used in the extraction and refining operations, covering pyrometallurgical, hydrometallurgical, halide, and electro-metallurgical processes. It provides valuable information on the technologies and processes engineers encounter in industrial production.

Describes the weldability aspects of structural materials used in a wide variety of engineering structures, including steels, stainless steels, Ni-base alloys, and Al-base alloys Welding Metallurgy and Weldability describes weld failure mechanisms associated with either fabrication or service, and failure mechanisms related to microstructure of the weldment. Weldability issues are divided into fabrication and service related failures; early chapters address hot cracking, warm (solid-state) cracking, and cold cracking that occur during initial fabrication, or repair. Guidance on failure analysis is also provided, along with examples of SEM fractography that will aid in determining failure mechanisms. Welding Metallurgy and Weldability examines a number of weldability testing techniques that can be used to quantify susceptibility to various forms of weld cracking. Describes the mechanisms of weldability along with methods to improve weldability Includes an introduction to weldability testing and techniques, including strain-to-fracture and Varestraint tests Chapters are illustrated with practical examples based on 30 plus years of experience in the field Illustrating the weldability aspects of structural materials used in a wide variety of engineering structures, Welding Metallurgy and Weldability provides engineers and students with the information needed to understand the basic concepts of welding metallurgy and to interpret the failures in welded components.

The latest information available on oil and oilseed processing   Oil and Oilseed Processing  offers a comprehensive text that explores both the conventional and novel “green” extraction methods used to extract oils from seeds. The authors—noted experts on the topic—examine the positive aspects of operations in processing oil and oilseeds and present new processing concepts, principles, effects on quality, as well as the stability characteristics, limitations, and challenges.  Due to the economic implications associated with the overproduction of seed oils, the book includes pertinent information on vegetable and animal-derived oils for industrial applications. The authors also explore recent applications and future perspectives for vegetable and animal oils use in the food and non-food industry. Safety concerns regarding oil and oilseed processing and waste valorisation are also covered in-depth. This important guide:  Explores the traditional and new extraction methods used to extract oils from seeds Contains the most up-to-date insight into oil and oilseed processing Focuses on the areas of oil processing, safety, quality, and nutritional evaluation Written for food scientists and professional food technologists,  Oil and Oilseed Processing  is the only book on the market that contains the most recent information on all aspects of oil and oilseed processing.

By presenting the latest technological advances and growing national and international regulation, this new book explores state-of-the-art developments in the challenging field of tissue and cell processing. It provides a guide to easier and safer practice in operational principles of preservation, decontamination, and sterilization. Nearly half of the book is devoted completely to tissue- or cell-specific issues relating to processing. With lists of learning points and case studies which consist of sample processing protocols, descriptions of where processing went wrong, sample risk assessments, or validation studies, the authors help you find specific information fast.

Provides state-of-the-art algorithms for sound capture, processing and enhancement Sound Capture and Processing: Practical Approaches covers the digital signal processing algorithms and devices for capturing sounds, mostly human speech. It explores the devices and technologies used to capture, enhance and process sound for the needs of communication and speech recognition in modern computers and communication devices. This book gives a comprehensive introduction to basic acoustics and microphones, with coverage of algorithms for noise reduction, acoustic echo cancellation, dereverberation and microphone arrays; charting the progress of such technologies from their evolution to present day standard. Sound Capture and Processing: Practical Approaches Brings together the state-of-the-art algorithms for sound capture, processing and enhancement in one easily accessible volume Provides invaluable implementation techniques required to process algorithms for real life applications and devices Covers a number of advanced sound processing techniques, such as multichannel acoustic echo cancellation, dereverberation and source separation Generously illustrated with figures and charts to demonstrate how sound capture and audio processing systems work An accompanying website containing Matlab code to illustrate the algorithms This invaluable guide will provide audio, R&D and software engineers in the industry of building systems or computer peripherals for speech enhancement with a comprehensive overview of the technologies, devices and algorithms required for modern computers and communication devices. Graduate students studying electrical engineering and computer science, and researchers in multimedia, cell-phones, interactive systems and acousticians will also benefit from this book.

Speech processing addresses various scientific and technological areas. It includes speech analysis and variable rate coding, in order to store or transmit speech. It also covers speech synthesis, especially from text, speech recognition, including speaker and language identification, and spoken language understanding. This book covers the following topics: how to realize speech production and perception systems, how to synthesize and understand speech using state-of-the-art methods in signal processing, pattern recognition, stochastic modelling computational linguistics and human factor studies.

Health Care Operations and Supply Chain Management This innovative text offers a thorough foundation in operations management, supply chain management,?and the strategic implementation of programs, techniques, and tools for reducing costs and improving quality in health care organizations. The authors incorporate the features and functions of Microsoft Excel where appropriate in their coverage of supply chain strategy, process design and analysis of health care operations, managing health care operations quality, and planning and controlling health care operations. Health Care Operations and Supply Chain Management offers real-world examples to illustrate the most current concepts and techniques such as value stream mapping and Six Sigma. In addition, the authors clearly demonstrate how operations and process improvement relate to contemporary health care trends such as evidence-based medicine and pay-for-performance. Health Care Operations and Supply Chain Management contains: Leading edge concepts and techniques Real-life data and actual examples from health care settings to underscore the main concepts in the text Instruction in the use of Microsoft Excel for health care operations and supply side management The book's numerous screen shots and detailed instructions guide the student through the use of Microsoft Excel's many functions and features.

This volume contains papers presented at The 15th International Conference on the Texture of Materials from June 1-5th, 2008 in Pittsburgh, PA. Chapters include: Friction Stir Welding and Processing Texture and Anisotropy in Steels Effects of Magnetic Fields Hexagonal Metals Texture in Materials Design View information on Applications of Texture Analysis: Ceramic Transactions, Volume 201.

Examines the latest processing and fabrication methods There is increasing interest in the application of advanced ceramic materials in diverse areas such as transportation, energy, environmental protection and remediation, communications, health, and aerospace. This book guides readers through a broad selection of key processing techniques for ceramics and their composites, enabling them to manufacture ceramic products and components with the properties needed for various industrial applications. With chapters contributed by internationally recognized experts in the field of ceramics, the book includes traditional fabrication routes as well as new and emerging approaches in order to meet the increasing demand for more reliable ceramic materials. Ceramics and Composites Processing Methods is divided into three sections: Densification, covering the fundamentals and practice of sintering, pulsed electric current sintering, and viscous phase silicate processing Chemical Methods, examining colloidal methods, sol-gel, gel casting, polymer processing, chemical vapor deposition, chemical vapor infiltration, reactive melt infiltration, and combustion synthesis Physical Methods, including directional solidification, solid free-form fabrication, microwave processing, electrophoretic deposition, and plasma spraying Each chapter focuses on a particular processing method or approach. Collectively, these chapters offer readers comprehensive, state-of-the-science information on the many approaches, techniques, and methods for the processing and fabrication of advanced ceramics and ceramic composites. With its coverage of the latest processing methods, Ceramics and Composites Processing Methods is recommended for researchers and students in ceramics, materials science, structural materials, biomedical engineering, and nanotechnology.