For more than a century, national and international governing bodies have had some involvement in regulating the quality and safety of food during production and delivery. Since the beginnings of this "modern" food regulation in the early 20th century, the way that food is produced, packaged and distributed has changed drastically. It is difficult to determine if technological advances in the areas of polymer science, refrigeration, and transportation have driven the globalization of the food supply or if the food industry has drawn from these technologies to satisfy consumer's desire and need. Ensuring the safety of food requires a complex and ever-changing set of interactions between producers, distributors, consumers and regulators. As advances are made in packaging and food additives, as food distributions systems evolve to meet consumer needs, or as these respond to environmental and population changes, adjustments to regulatory systems may become necessary. Analytical, environmental and materials chemistry can often play important roles in responding to these changes and in continuing to help with the improvement of food safety and security. These five co-editors bring their respective expertise to the subject of the food system and the chemical advancements behind it.

Structural Studies, Repairs and Maintenance of Heritage Architecture XVII The importance of retaining the built cultural heritage cannot be overstated. Rapid development and inappropriate conservation techniques are threatening many heritage unique sites in different parts of the world. Selected papers presented at the 17th International Conference on Studies, Repairs and Maintenance of Heritage Architecture are included in this volume. They address a series of topics related to the historical aspects and the reuse of heritage buildings, as well as technical issues on the structural integrity of different types of buildings, such as those constructed with materials as varied as iron and steel, concrete, masonry, wood or earth. Restoration processes require the appropriate characterisation of those materials, the modes of construction and the structural behaviour of the building. This knowledge can be gained through a series of material characterisation techniques, preferably via non-destructive tests. Modern computer simulation can provide accurate results demonstrating the stress state of the building and possible failure mechanisms affecting its stability. Of particular importance are studies related to their dynamic and earthquake behaviour aiming to provide an assessment of the seismic vulnerability of heritage buildings. Contributions originate from scientists, architects, engineers and restoration experts from all over the world and deal with different aspects of heritage buildings, including how to formulate regulatory policies, to ensure effective ways of preserving the architectural heritage. Earthquake Resistant Engineering Structures XIII Papers presented at the 13th International Conference on Earthquake Resistant Engineering Structures form this volume and cover basic and applied research in the various fields of earthquake engineering relevant to the design of structures. Major earthquakes and associated effects such as tsunamis continue to stress the need to carry out more research on those topics. The problems will intensify as population pressure results in buildings in regions of high seismic vulnerability. A better understanding of these phenomena is required to design earthquake resistant structures and to carry out risk assessments and vulnerability studies. The problem of protecting the built environment in earthquake-prone regions involves not only the optimal design and construction of new facilities but also the upgrading and rehabilitation of existing structures including heritage buildings. The type of highly specialized retrofitting employed to protect the built heritage is an important area of research. The included papers cover such topics as Seismic hazard and tsunamis; Building performance during earthquakes; Structural vulnerability; Seismic isolation and energy dissipation; Passive earthquake protection systems.

This book brings together current thought on several aspects of the use of pesticides in and around homes, schools and workplaces. The book addresses several parts of the process, from the discovery and development of new active ingredients, their formulation, use, longevity, environmental fate and human exposure.

This inquiry into the technical advances that shaped the 20th century follows the evolutions of all the principal innovations introduced before 1913 (as detailed in the first volume) as well as the origins and elaborations of all fundamental 20th century advances. The history of the 20th century is rooted in amazing technical advances of 1871-1913, but the century differs so remarkably from the preceding 100 years because of several unprecedented combinations. The 20th century had followed on the path defined during the half century preceding the beginning of World War I, but it has traveled along that path at a very different pace, with different ambitions and intents. The new century's developments elevated both the magnitudes of output and the spatial distribution of mass industrial production and to new and, in many ways, virtually incomparable levels. Twentieth century science and engineering conquered and perfected a number of fundamental challenges which remained unresolved before 1913, and which to many critics appeared insoluble. This book is organized in topical chapters dealing with electricity, engines, materials and syntheses, and information techniques. It concludes with an extended examination of contradictory consequences of our admirable technical progress by confronting the accomplishments and perils of systems that brought liberating simplicity as well as overwhelming complexity, that created unprecedented affluence and equally unprecedented economic gaps, that greatly increased both our security and fears as well as our understanding and ignorance, and that provided the means for greater protection of the biosphere while concurrently undermining some of the keybiophysical foundations of life on Earth.
Transforming the Twentieth Century will offer a wide-ranging interdisciplinary appreciation of the undeniable technical foundations of the modern world as well as a multitude of welcome and worrisome consequences of these developments. It will combine scientific rigor with accessible writing, thoroughly illustrated by a large number of appropriate images that will include historical photographs and revealing charts of long-term trends.

This book collects papers from meetings of the American Chemical Society held over the past four years, reporting on trends in research for safe, efficient, biologically active agrochemicals. After an overview chapter, a section describes efforts in the discovery of new herbicides. A second section

We are becoming increasingly aware of the overwhelming pollution of our limited water resources on this planet. And while many contaminants originate from Mother Earth, most water pollution comes as a direct result of anthropogenic activities. This problem has become so immense that it threatens the future of all humanity. If effective measures to reduce and/or remediate water pollution and its sources are not found, it is estimated by UN that 2.7 billion people will face water shortage by 2025 as opposed to 1.2 billion people who do not have access to clean drinking water now. Therefore, development of novel green technologies to address this major problem represents a priority of the highest importance. This book discusses green chemistry and other novel solutions to the water pollution problems which includes some interesting applications of nanoparticles. Novel Solutions to Water Pollution is a useful and informative text for those engaged in issues of water quality and water pollution remediation at operational, administrative, academic, or regulatory levels.

In the past, the stability of milk and milk products was the primary consideration, but this is no longer the principal objective due to the evolution of modern sanitary practices as well as pasteurization. Today, the manufacture of dairy products of consistently good flavor and texture is crucial. In previous flavor studies, researchers identified hundreds of volatile compounds, with little or no attention paid to their sensory contribution to overall flavor of dairy products. The availability of powerful chromatographic separation techniques like high resolution gas chromatography in combination with mass spectrometry and olfactory detection ports have revolutionized the work on characterization of dairy flavor. This along with recent developments in sensory methods and our increased knowledge about the genomics of diary culture organisms have allowed great advancements in our understanding of dairy flavor chemistry. Flavor of Dairy Products covers the evolution of dairy flavor research and presents updated information in the areas of instrumental analysis, biochemistry, processing and shelf-life issues related to the flavor of dairy products.

This book addresses one of the most challenging problems that plagues the environmental field today-subsurface contamination. The past three decades have ushered in various methods for removal of organic and inorganic contaminants from the subsurface to varying degrees of effectiveness. Because of the site-to-site variability in the nature of contamination characteristics, the pattern of waste disposal and accidental releases, the site characteristics and thus contaminant behavior, and hydrologic conditions, predicting the effectiveness of one treatment method over another is a daunting task. Field demonstration of innovative technologies is a key step in their development, however, only after successful scale-up from laboratory testing. This book features chapters written by researchers who have linked laboratory- and field-scales in efforts to find creative, cost-effective methods for prediction of successful remediation of contaminated soil and ground water. State-of-the-art technologies using physicochemical removal methods and biological methods are discussed in the context of not only their effectiveness in remediating organic and inorganic wastes from various subsurface environments but also in terms of useful flask-scale methods for measuring and predicting their field-scale effectiveness. Chapters address sorption and hydrolysis of pesticides by organoclays, use of Fentons agents to destroy chlorinated solvents removed from the subsurface by granulated activated carbon, methanol flushing as a means of removing toxaphene from soils, natural attenuation as a method for effectiveness of remediation metals and biodegrading acid-mine drainage constituents, and biodegradation ofradiologically contaminated soils. Also addressed in this book are current and future methods of assessing microbiological activity potential and diversity and of modeling biodegradation, contaminant flux, and gaseous transport in the subsurface.

In one of the greatest engineering feats of his time, Claudius Crozet led the completion of Virginia's Blue Ridge Tunnel in 1858. Two centuries later, the National Historic Civil Engineering Landmark still proudly stands, but the stories and lives of those who built it are the true lasting triumph. Irish immigrants fleeing the Great Hunger poured into America resolute for something to call their own. They would persevere through life in overcrowded shanties and years of blasting through rock to see the tunnel to completion. Prolific author Mary E. Lyons follows three Irish families in their struggle to build Crozet's famed tunnel and their American dream.

Developed for Introduction to Soils or Soil Science courses, The Nature and Properties of Soils, 15th Edition, can be used in courses such as Soil Fertility, Land Resources, Earth Science and Soil Geography. The Nature and Properties of Soils is designed to engage today's students with the latest in the world of soils. This hallmark text introduces students to the exciting world of soils through clear writing, strong pedagogy, and an ecological approach that effectively explains the fundamentals of soil science. Worked calculations, vignettes, and current real-world applications prepare readers to understand concepts, solve problems, and think critically. Written for both majors and non-majors, this text highlights the many interactions between the soil and other components of forest, range, agricultural, wetland and constructed ecosystems. Now in full-colour, the 15th Edition includes hundreds of compelling photos, figures, and diagrams to bring the exciting world of soils to life. Extensively revised, new and updated content appears in every chapter. Examples include: coverage of the pedosphere concept; new insights into humus and soil carbon accumulation; subaqueous soils, soil effects on human health; principles and practice of organic farming; urban and human engineered soils; new understandings of the nitrogen cycle; water-saving irrigation techniques; hydraulic redistribution, soil food-web ecology; disease suppressive soils; soil microbial genomics; soil interactions with global climate change; digital soil maps; and many others.

This book presents a hands-on, activity-based approach to the use of AutoCAD as a drafting tool-complete with techniques, tips, shortcuts, and insights that improve efficiency. Topics and tasks are carefully grouped to lead students logically through the AutoCAD command set, with the level of difficulty increasing steadily as skills are acquired through experience and practice. Straightforward explanations focus on what is relevant to actual drawing procedures, and illustrations show exactly what to expect on the computer screen. This edition features updates for the latest release of AutoCAD, projects, and test questions for each chapter. Lessons are broken down into tasks listed at the beginning of each section, introducing students to the AutoCAD commands using a structured, intuitive approach and helping students anticipate what information will be needed at each new phase of the learning process. General Procedure boxes appear as new commands are introduced, providing a simple overview of basic command procedures in a step-by-step format. Detailed graphics appear throughout the text, demonstrating what students should expect to see on their screens and encouraging self-paced study. Drawing problems appear at the end of the chapter, helping students apply newly learned techniques immediately to realistic drawing situations. This includes drawing suggestions, timesaving tips, and explanations of how to use techniques in actual situations. High-quality working drawings accompany end-of-chapter drawing problems, appearing in a large, clearly dimensioned format on each right-hand page. This includes mechanical, architectural, civil, and electrical drawings.

The American Chemical Society (ACS) Committee on Analytical Reagents sets the specifications for most chemicals used in analytical testing. Currently, the ACS is the only organization in the world that sets requirements and develops validated methods for determining the purity of reagent chemicals. These specifications have also become the de facto standards for chemicals used in many high-purity applications. Publications and organizations that set specifications or promulgate analytical testing methods-such as the United States Pharmacopeia and the U.S. Environmental Protection Agency-specify that ACS reagent-grade purity be used in their test procedures. The Eleventh Edition incorporates the "supplements" accumulated over the past eight years, removes some obsolete test methods, improves instructions for many existing ones, and also introduces some new methods. Overall, the safety, accuracy, or ease of use in specifications for about 70 of the 430 listed reagents has been improved, and seven new reagents have been added.

Consumers, regulators, and the food industry increasingly require that foods comply not only with label descriptions of food content, but also with information regarding the food's origin. For example, the wine industry has a long history of labeling wines based on varietal, regional, or age (vintage)-related properties. However, regulatory agencies are now beginning to require methods to confirm this label information. Food retailers are also facing voluntary or mandatory labeling requirements that will indicate regional or country-of-origin, species and/or varietal information. As a result, development of reliable analytical methods to confirm the authenticity of the label information is needed. This book presents the latest research on food and wine authentication. The chapters are authored by leading international scientists whose research focuses on the development and application of analytical methodologies used for the authentication of food and beverages.

This book outlines a simple and easy-to-follow process for auditing building operation to identify and reduce energy consumption. It explains the operational and cost-based opportunities, assessing the current conditions, analyzing the opportunities, and reporting the findings and documenting the plan. The book discusses the different building components and systems and how they affect energy efficiency and describes the operational energy efficiencies that can be gained by implementing no cost changes or alternate maintenance activities already funded. Capital improvement opportunities, and evaluating Return on Investment and life cycle replacement of equipment are also covered.

Nanoscale Materials in Chemistry describes research on the development of catalysts and adsorbents based on nanoscale materials. It includes new fundamental research and applications, beginning with a review of research on the development of nanoscale metal oxides that have environmental applications. Information on product development is described for selected products that have been developed and commercialized.
This book is for scientists and engineers who are engaged in research, development, and commercialization of nanoscale materials for environmental applications. Those interested in the pathway from idea to product will find this book valuable to them. Those interested in sustainable indoor environments will find new information on in room devices that may be able to reduce energy use in buildings. Toxicology and product safety are included as well.

Learn about the environment and how to protect it! This nonfiction book explains what individuals and the government can do to keep Earth s air clean. The book includes a glossary and a short fiction piece related to the topic. With this fun, informative book and the additional activity, students will learn how to make their planet healthier. This 32-page full-color book describes current threats to the environment and explains how their effects can be limited. It also explores important concepts like clean energy and upcycling and includes an extension activity for grade 3. Perfect for the classroom, at-home learning, or homeschool to explore greenhouse gases, pollution, and finding solutions to help the planet.

An accessible overview of the fourth industrial revolution (4IR) and the impact it is set to have on various sectors in South Africa and Africa. It explores the previous industrial revolutions that have led up to this point and outlines what South Africa’s position has been through each one.

With a focus on artificial intelligence as a core concept in understanding the 4IR, this book uses familiar concepts to explain artificial intelligence, how it works and how it can be used in banking, mining, medicine and many other fields.

Written from an African perspective, Closing the Gap addresses the challenges and fears around the 4IR by pointing to the opportunities presented by new technologies and outlining some of the challenges and successes to date.

This book is targeted for chemists and environmental scientists and engineers who are engaged in understanding the chemistry of high-valent iron (Ferrate) and in applications of chemical oxidants to treat contaminants in water, wastewater, and industrial effluents. This book will be of interest to biochemical engineers and microbiologists who want to understand Ferrate's disinfection performance. Additionally, the book will be of tremendous interest to graduate students who are performing research on the understanding of the mechanism of higher oxidation states of iron and in developing innovative drinking water and wastewater treatment technologies.
This book addresses synthesis and properties of Ferrate(VI), which is an environmentally friendly chemical for oxidation, coagulation, and disinfection for the multipurpose treatment of water and wastewater. It provides information on using different approaches to synthesize ferrate(VI). New processes to synthesize ferrate(VI) are detailed. Properties and generations of high oxidation states of iron including ferrate(IV) and ferrate(V) are discussed. Interestingly, possible formations of iron in unusual oxidation states, +7 and +8 are also discussed. The potential use of ferrate(VI) in high energy density rechargeable batteries is thoroughly reviewed. Chapters of the book demonstrate development of new technology for removing emerging pollutants without forming toxic side reactions or by-products. Examples include endocrine disruptors (EDs) and pharmaceuticals, which are of a great concern because of their possible toxic effects on humans and the ecology of the environment. Ferrate(VI) is an emerging water-treatment disinfectant, whichcan address the concerns raised by the currently used oxidants and disinfectants. Interestingly, ferrate(VI) does not react with the bromide ion; carcinogenic bromate ion would thus not be produced in the treatment of bromide-containing water. Ferrate(VI) can inactivate chlorine resistant bacteria. This book also provides information on the means to oxidize highly resistant organics and microorganisms in order to design appropriate remediation and water treatment technology which is cleaner and greener.

This title is a NATED (Report 191) subject for N2 which is the 2nd level in the National Certificate. Level 3 refers to its level within the National Qualifications Framework.

Fitting and machining theory NQF level 3 is written in line with the unit standards of the MERSETA, previously known as the metal industry, and with the current syllabus of the department of education. The title follows a modular compe-tency-based approach. This text assists the facilitator and learner to achieve success with its outcomes-based approach.

Self-assessment questions are provided to help learners identify areas in which they can improve. There are also assignments at the end of each learning unit that allow learners to practise and improve their skills. Some learning units end with a checklist where learners can see which critical cross-field outcomes are covered.

Low-Energy Nuclear Reactions and New Energy is a summary of selected experimental and theoretical research performed over the last 19 years that gives profound and unambiguous evidence for low energy nuclear reaction (LENR), historically known as cold fusion.
In 1989, the subject was announced with great fanfare, to the chagrin of many people in the science community. However, the significant claim of its discoverers, Martin Fleischmann and Stanley Pons, excess heat without harmful neutron emissions or strong gamma radiation, involving electrochemical cells using heavy water and palladium, has held strong.
In recent years, LENR, within the field of condensed matter nuclear science, has begun to attract widespread attention and is regarded as a potential alternative and renewable energy source to confront climate change and energy scarcity. The aim of the research is to collect experimental findings for LENR in order to present reasonable explanations and a conclusive theoretical and practical working model.
The goal of the field is directed toward the fabrication of LENR devices with unique commercial potential demonstrating an alternative energy source that does not produce greenhouse gases, long-lived radiation or strong prompt radiation. The idea of LENR has led to endless discussions about the kinetic impossibility of intense nuclear reactions with high coulomb barrier potential. However, recent theoretical work may soon shed light on this mystery.
Understanding this process is one of the most challenging and perhaps important issues in the scientific world. This book includes previously unpublished studies, new and controversial theories to approach LENR with access to new sources and experimental results. The book offers insight into this controversial subject and will help readers re-evaluate their perspective on LENR as a possible alternative energy source.