Aero engine bearing chambers are complex machine elements inside the engines, supporting up to three concentric shafts on bearings. For safety reasons, the aero engines always employ rolling-element type bearings and therefore require a sufficient oil supply for lubrication in order to guarantee a reliable operation. As a consequence, a complex two-phase flow consisting of oil and sealing air governs the bearing chambers. A highly dynamic oil film, flowing along the chamber walls, plays a vital role to fulfill the tasks of cooling, lubricating and cleaning the bearing chambers. The design and optimization process of the bearing chambers requires a detailed understanding in order to accurately simulate the film behaviour inside the bearing chambers. Based on the earlier experimental investigations, it is known that near the scavenge off-take a relatively thick film exists. The numerical model to simulate these films must therefore take into account the elliptical behaviour of such films. Among the different models, the Volume Of Fluid (VOF) Model offers the best compromise between accuracy and efforts. However, preliminary attempts to model a fully developed and turbulent test case from literature revealed an unphysical pressure drop and velocity profile in the gas phase above the film flow. An inadequate turbulence modelling near the gas-liquid interface was identified as the problem source. The 2-Equation turbulence models (k- epsilon & k- omega) were extended to achieve a substantial improvement.

The #1 Process Safety Guide, Now Extensively Updated for Current Industrial Processes, Systems, and Practices Process safety has seen a dramatic consolidation of concepts in the past few years. Chemical Process Safety, Fourth Edition, provides students and working engineers with the understanding necessary to apply these new concepts to safely design and operate any process. Long the definitive guide in the field, this edition fully reflects major recent advances in process safety technology and practice. Readers will find extensive new and updated coverage of relief sizing, hazards identification, risk assessment, and many other topics. Several chapters have been completely rewritten, and all are substantially modified. This textbook includes 50 new problems and solutions (mostly in SI units), and 25 new case histories. Safety culture Preventive and mitigative safeguards The CCPS 20 elements of Risk Based Process Safety (RBPS) Toxicology, industrial hygiene, and source models Hazardous material dispersion Fires, explosions, and concepts for preventing them Chemical reactivity Reliefs and relief sizing Hazards identification and evaluation Risk analysis and assessment, including Layer of Protection Analysis (LOPA) Safety strategies, procedures, designs, case histories, and lessons learned Crowl and Louvar link key academic concepts to modern industrial practice, making this guide invaluable for all engineering students and for all working engineers. Register your product for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

Das Buch ist Ubersicht und Hilfe fur den mit den Problemen des Apparatebaus bzw. -einsatzes befassten Personenkreis. Apparate sind "Herzstucke" von verfahrenstechnischen Anlagen, z.B. in der chemischen Industrie. Die wichtigsten Elemente dieser Apparate wie Umhullung, Abschluss, Anschluss und Absicherung werden mit Erklarung, Ableitung und Parameterstudien in Form von Diagrammen, Bildern sowie Durchrechnung von Beispielen behandelt. Die Darstellung ist in ihrer konsequenten Anordnung (Erklarung, Grundlagen, Messungen, Parameterstudien, Durchrechnung von Beispielen) an den Problemstellungen der Praxis orientiert. Besonderheiten und neue Methoden mit vielen Nachweisen und Ergebnissen zur Erganzung des Regelwerks - aber auch als Erganzungsvorschlage fur die Regelwerke - sind wegweisend."

Those tasked with the planning and construction of infrastructure and development operations face an increasingly uncertain context in which they must address risks across a number of different fields. These range from the environmental and archaeological to the social, political and financial. As a consequence, the formal and informal practices of stakeholders often incorporate projections of risk and opportunity. Project Risks analyzes this paradigm shift. It reviews the origin and nature of these uncertainties, and the practices implemented by the actors to mitigate or take advantage of them. Paradoxically, these practices generate new risks and power relations that are not compatible with the collaborative planning model. These paradoxes force the rethinking of practices such as project territorialization, risk taking in planning and the responsibility of actors, as well as the societal and political choices that must be made between the realization of projects and the protection of the environment.

This is an interdisciplinary book for biomimetic nanotechnology, that correlates the biology on the molecular scale with nanotechnology mimicking human senses and movement. The introduction provides the background in life science, chemistry, material science, and engineering needed to understand sensors and movement on the molecular level. The chapters discuss human movement, vision, smell and taste, hearing, and touch. Each chapter explains the sense or movement on the molecular level, then discusses nanotechnology that uses the human molecules or mimics the function of the human sense and movement on the nanoscale. This is an excellent book for senior undergraduates and graduate students in the life sciences, chemistry, material sciences, and engineering. It will also appeal to any reader with an interest in life sciences and nanotechnology.

Fourier Transform Infrared microspectroscopy (FTIR) was first developed by William Coblentz in 1905 for analytical purposes. It has been established as a powerful analytical method to analyze a wide range of materials. The most convenient way to analyze the molecular structure was to prepare KBr pellets with small amount of chemical species. Currently, the development of the Universal Attenuated Total Reflectance (UATR) allows the use of ZnSe-Diamond crystal to acquire FTIR spectra directly from the sample with no special preparation. These traditional FTIR analyses have been made with devices capable of performing single measurements, thus, providing a single IR spectrum of the sample. Recent major technological development in FTIR instrumentation was development of microscopes and imaging systems. These devices are now capable of imaging larger sample area, providing not only spectroscopic information but also spatial distributional information. In addition, the development of Focal Point Array (FPA) has made FTIR imaging an emerging area of chemical imaging research. The aim of this book is to summarize in a single document the research work that is being performed using UATR and IR imaging in selected emerging applications in plant materials and biological samples. This book provides the readers new knowledge, updates information, emerging applications, and understanding of the potential use of FTIR Microspectroscopy.

Although classical electromagnetic (EM) field theory is typically embedded in vector calculus and differential equations, many of the basic concepts and characteristics can be understood with precursory mathematical knowledge. Completely revised and updated, Basic Introduction to Bioelectromagnetics, Second Edition facilitates the process of interdisciplinary research by introducing life scientists to the basic concepts of EM fields.

This new edition outlines elements of EM that are helpful to life scientists working with physicists and electrical engineers. Each concept is presented with an associated application and discussion. Example applications include hyperthermia, neural stimulation, MRI, NMR, ultrasound, and cardiac pacing/defibrillation. With the liberal use of diagrams and graphs, this qualitative and illustrative point of access:

Covers the entire frequency spectrum from direct current (DC) up through optical frequencies

Includes more than 200 illustrations with 40 medical applications

Incorporates examples from real applications to explain concepts

Concentrates on the qualitative explanation of the key concepts, fundamental principles, and characteristic behaviors of EM fields, without mathematical rigor

Offers practical rules of thumb to understand real situations

Requires only an algebra background, in contrast to typical EM books that require vector calculus and partial differential equations

Offering a simplified view of a very complex subject, this second edition provides an accessible introduction for life scientists and medical technologists on how EM fields work, what controls them, and the factors important to experimental setups.

Table of Contents

Electric and Magnetic Fields: Basic Concepts. EM Behavior When the Wavelength Is Large Compared to the Object Size. EM Behavior When the Wavelength Is About the Same Size as the Object. EM Behavior When the Wavelength Is Much Smaller Than the Object. Bioelectromagnetic Dosimetry. Electromagnetics in Medicine: Today and Tomorrow. Appendices. Index.

High-entropy alloys and their manufacturing are important fields in materials science and engineering today. This book will discuss various areas on high-entropy alloys. Topics discussed include processing routes, the effect of processing routes on structure and properties of the materials, the effect of alloying elements on structure and properties, as well as new emerging routes for materials preparation.

This thesis presents a simple, yet highly effective surface engineering solution that uses non-covalent binding peptides to control the autophagy-inducing activity of nanomaterials and nanodevices. The author presents RE-1, a short synthetic peptide that sequence-specifically binds to lanthanide (LN) oxide and upconversion nanocrystals with high affinity, which was discovered using an innovative phage display approach. RE-1 effectively inhibits the autophagy-inducing activity and toxicity of these nanocrystals by forming a stable coating layer on the surface of the nanoparticles, and by reducing their sedimentation and cell interaction. RE- 1 and its variants provide a versatile tool for tuning cell interactions in order to achieve the desired level of autophagic response and are useful for the various diagnostic and therapeutic applications of LN-based nanomaterials and nanodevices.

In the 1980's sonochemistry was considered to be a rather restricted branch of chemistry involving the ways in which ultrasound could improve synthetic procedures, predominantly in heterogeneous systems and particularly for organometallic reactions. Within a few years the subject began to expand into other disciplines including food technology, environmental protection and the extraction of natural materials. Scientific interest grew and led to the formation of the European Society of Sonochemistry in 1990 and the launch of a new journal Ultrasonics Sonochemistry in 1994. The subject continues to develop as an exciting and multi-disciplinary science with the participation of not only chemists but also physicists, engineers and biologists. The resulting cross-fertilisation of ideas has led to the rapid growth of interdisciplinary research and provided an ideal way for young researchers to expand their knowledge and appreciation of the ways in which different sciences can interact. It expands scientific knowledge through an opening of the closed doors that sometimes restrict the more specialist sciences. The journey of exploration in sonochemistry and its expansion into new fields of science and engineering is recounted in "Sonochemistry Evolution and Expansion" written by two pioneers in the field. It is unlike other texts about sonochemistry in that it follows the chronological developments in several very different applications of sonochemistry through the research experiences of the two authors Tim Mason and Mircea Vinatoru. Designed for chemists and chemical engineers Written by two experts and practitioners in the subject Volume 1 covers the historical background and evolution of sonochemistry Volume 2 explains the wider applications and expansion of the subject VOLUME 1 Fundamentals and Evolution This volume traces the evolution of sonochemistry from the very beginning when the effects of acoustic cavitation were first reported almost as a scientific curiosity. The major developments of the subject from the 1980's are described by the authors who became active participants in the field during that period. A chapter is devoted to ultrasonically assisted extraction (UAE) which illustrates the different ways in which sonochemical technologies can be applied in both batch and flow modes leading to the development of large-scale processing. The chapter on environmental protection shows the wide range of applications of sonochemistry in this important field for both biological and chemical decontamination.

This textbook introduces the elementary basics of hydrochemistry with special focus on reaction equilibria in aquatic systems and their mathematical description. Topics discussed in this textbook include: structure and properties of water, concentration measures and activities, colligative properties, basics of chemical equilibria, gas-water partitioning, acid/base reactions, precipitation/dissolution, calco-carbonic equilibrium, redox reactions, complex formation, and sorption. Examples within the text as well as problems to be solved by the reader support the acquisition of knowledge. Complete and detailed solutions to the problems are given in a separate chapter.

This book presents the fundamentals of the reservoir and interfacial engineering. The book systematically starts with the basics of primary, secondary and tertiary (enhanced) oil recovery and emphasizes on the theory of microbial-enhanced oil recovery (MEOR) and its potential toward recovery of oil in place. Different approaches of MEOR such as in-situ, ex-situ, and integration of chemical- and microbial-enhanced oil recovery (EOR) are discussed in detail. This book highlights the link between the effectiveness of MEOR and the local reservoir conditions, crude oil characteristics, and indigenous microbial community. The latest implementations of MEOR across the globe are highlighted as case studies to outline the potential as well as the scope of MEOR. Given the topics covered, this book will be useful for professionals and researchers working in the areas of petroleum science and engineering, chemical engineering, biotechnology, bioengineering, and other related fields.

This new edition follows the original format, which combines a detailed case study - the production of phthalic anhydride - with practical advice and comprehensive background information. Guiding the reader through all major aspects of a chemical engineering design, the text includes both the initial technical and economic feasibility study as well as the detailed design stages. Each aspect of the design is illustrated with material from an award-winning student design project.
The book embodies the "learning by doing" approach to design. The student is directed to appropriate information sources and is encouraged to make decisions at each stage of the design process rather than simply following a design method. Thoroughly revised, updated, and expanded, the accompanying text includes developments in important areas and many new references.

This volume explores the latest techniques and strategies used to study the field of peptide macrocycles. The chapters in this book ae organized into four parts: macrocycles synthesis, combinational library synthesis and screening, macrocycle characterization, and unique applications. Part One looks at a variety of peptide cyclization methodologies, and Part Two describes methods for the creation of peptide macrocycles libraries and their subsequent screening against biological targets of interest. Part Three discusses the study and characterization of peptide macrocycle-target interactions, and Part Four introduces unique applications for peptide macrocycles, from higher-order structure formation to post-synthetic functional modifications. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and comprehensive, Peptide Macrocycles: Methods and Protocols is a valuable resource for both novice and expert researchers looking to learn more about this developing field.

Many elements and inorganic compounds play an extraordinary role in daily life for numerous applications, e. g., construction materials, inorganic pigments, inorganic coatings, steel, glass, technical gases, energy storage and conversion materials, fertilizers, homogeneous and heterogeneous catalysts, photofunctional materials, semiconductors, superconductors, soft- and hard magnets, technical ceramics, hard materials, or biomedical and bioactive materials. The present book is written by experienced authors who give a comprehensive overview on the many chemical and physico-chemical aspects related to application of inorganic compounds and materials in order to introduce senior undergraduate and postgraduate students (chemists, physicists, materials scientists, engineers) into this broad field.

Many elements and inorganic compounds play an extraordinary role in daily life for numerous applications, e. g., construction materials, inorganic pigments, inorganic coatings, steel, glass, technical gases, energy storage and conversion materials, fertilizers, homogeneous and heterogeneous catalysts, photofunctional materials, semiconductors, superconductors, soft- and hard magnets, technical ceramics, hard materials, or biomedical and bioactive materials. The present book is written by experienced authors who give a comprehensive overview on the many chemical and physico-chemical aspects related to application of inorganic compounds and materials in order to introduce senior undergraduate and postgraduate students (chemists, physicists, materials scientists, engineers) into this broad field.

Many elements and inorganic compounds play an extraordinary role in daily life for numerous applications, e. g., construction materials, inorganic pigments, inorganic coatings, steel, glass, technical gases, energy storage and conversion materials, fertilizers, homogeneous and heterogeneous catalysts, photofunctional materials, semiconductors, superconductors, soft- and hard magnets, technical ceramics, hard materials, or biomedical and bioactive materials. The present book is written by experienced authors who give a comprehensive overview on the many chemical and physico-chemical aspects related to application of inorganic compounds and materials in order to introduce senior undergraduate and postgraduate students (chemists, physicists, materials scientists, engineers) into this broad field.

What is risk based thinking? Do you know how to address risks and opportunities? Did you ever analyzed risks? Are you sure it is that what the ISO 9001 expects? What do you really know about knowledge management? Can you identify the types of knowledge in your organization? How do you maintain knowledge? What is awareness in the eyes of the ISO 9001 Standard? Can you tell the relation between awareness and the effectiveness of the QMS? This book explains in details all the new issues and topics required by the ISO 9001:2015 Standard and gives you the tools and tricks to answer the new requirements. Just read and do. The table of contents in the book are identical to the table of contents of the standard so you can orient yourself quite easily and find the specific advice you are looking for.

Table of Contents

Scope. Normative References. Terms and Definitions. Context of the Organization. Leadership. Planning. Support. Operation. Performance Evaluation. Continual Improvement.

This book presents recent advances in the use of ionic liquids in medicine and pharmaceutics with particular emphasis on addressing critical pharmaceutical challenges, including the low solubility, polymorphism, and bioavailability of drugs. It also provides insights into the development of the biologically functionalized ionic liquids suitable for medical and pharmaceutical applications. Ionic liquids have been used as potential solvents or materials in the fields of pharmaceutical drug delivery and formulations because of their unique and tunable physicochemical and biological properties. Readers find explanations of the diverse approaches to the application of ionic liquids in drug solubility, active pharmaceutical ingredient (API) formulation, and drug delivery systems, such as topical, transdermal, and oral delivery, with particular emphasis on recent developments. Particular attention is given to the development of ionic liquid-assisted effective drug delivery techniques for sparingly soluble or insoluble drug molecules. This book also discusses the biological activities of ionic liquids for possible applications in drug formulation and drug delivery systems. Scientists in disciplines such as chemistry, biology, and pharmaceutics find this book instructive and informative for developing ionic liquid-based drug formulations or drug delivery systems.

This unique approach to the basic concepts of adsorption is written for students, engineers, scientists, and others who need a clear presentation of adsorption processes. Unlike other texts on this subject, which are written for the specialist and rely heavily on advanced mathematics, this unique book helps you solve everyday problems in applications of adsorption, without complex mathematics or computers.
The author, a recognized expert in the field, gives you a quick introduction to the underlying physics of absorption and explains how to apply adsorption to solve analytical and design problems. Rich with practical examples and enhanced by illustrations that support the text, this refreshingly straightforward presentation helps you cut through the complexities of adsorption to find fast answers to pressing real-world questions.

Der Leser bzw. die Leserin findet anschaulich dargestellte Grundlagen verfahrenstechnischer Fragestellungen unter Berucksichtigung moderner Methoden. Das Buch enthalt sowohl Berechnungsmodelle als auch praxisnahe Berechnungsformeln bzw. bewahrte Losungswege zur Auslegung thermischer Trennanlagen. Ausserdem wird die industrielle Realisierung anhand von Abbildungen und Tabellen inklusive der technischen Daten detailliert behandelt. Viele Querverweise und ein umfangreiches Sachverzeichnis erleichtern das Auffinden von Zusammenhangen bzw. alternativen Losungswegen. Die Inhalte sind mit Abbildungen, Tabellen und mathematischen Formeln illustriert.
Das Buch vermittelt keinesfalls nur Grundlagen, sondern zeichnet sich durch einen deutlichen Praxisbezug aus, unter anderem durch die Darstellung zahlreicher technisch realisierter Prozesse und Apparate."