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Upgrading of Heavy and Extra-Heavy Crude Oils by Catalytic Hydrotreating: The History of HIDRO-IMP Technology
by Jorge AncheytaThis book explores the common approaches to upgrade heavy and extra-heavy crude oils by means of catalytic hydrotreating, emphasizing hydrogen addition technology as well as carbon rejection alternatives. Kinetic and reactor models are combined with experimental data to simulate and optimize commercial-scale reactor performance. Key Features• Focuses on fixed-bed catalytic hydrotreating and catalysts and process scheme characteristics for commercial application.• Guides readers on hydrotreating process technology development from batch reactor experiments to semi-commercial test.• Describes step-by-step methodologies for development of kinetic models based on experimental data generated at different reaction scales.• Provides detailed explanation on how to formulate a reactor model for the simulation of catalytic hydrotreating of heavy oils. A comprehensive guide to the upgrading of crude oils, this book has particular appeal for petroleum refining industry professionals, catalyst developers, workshop instructors, professors, and their graduate and postgraduate students.
Upper Bound Limit Load Solutions for Welded Joints with Cracks
by Sergey AlexandrovThe present short monograph concerns analytic and semi-analytic techniques for finding an approximate value of the limit load. The limit load is an essential input parameter of flaw assessment procedures. In most cases, finding the limit load involves some numerical calculations of different levels of complexity, including numerical minimization of functions of one or several arguments, the slip-line technique and the finite element method. This book shows in particular how to use singular behavior of the real velocity field in the vicinity of bi-material interfaces in kinematically admissible velocity fields to increase the accuracy of upper bound solutions. An approach to recalculate the limit load for a class of structures with defects with the use of its value for the corresponding structure with no defect is discussed. The upper bound technique is applied to evaluate the limit load of overmatched and undermatched welded joints with cracks subject to various loading conditions of practical importance in conjunction with the aforementioned special techniques.
Upscaling of Bio-Nano-Processes
by Hermann Nirschl Karsten KellerDespite ongoing progress in nano- and biomaterial sciences, large scale bioprocessing of nanoparticles remains a great challenge, especially because of the difficulties in removing unwanted elements during processing in food, pharmaceutical and feed industry at production level. This book presents magnetic nanoparticles and a novel technology for the upscaling of protein separation. The results come from the EU Project "MagPro2Life", which was conducted in cooperation of several european institutions and companies.
Upscaling of Single- and Two-Phase Flow in Reservoir Engineering
by Hans BruiningThis book describes fundamental upscaling aspects of single-phase/two-phase porous media flow for application in petroleum and environmental engineering. Many standard texts have been written about this subject. What distinguishes this work from other available books is that it covers fundamental issues that are frequently ignored but are relevant for developing new directions to extend the traditional approach, but with an eye on application. Our dependence on fossil energy is 80–90% and is only slowly decreasing. Of the estimated 37 (~40) Gton/year, anthropogenic emissions of about 13 Gton/year of carbon dioxide remain in the atmosphere. An Exergy Return on Exergy Invested analysis shows how to obtain an unbiased quantification of the exergy budget and the carbon footprint. Thus, the intended audience of the book learns to quantify his method of optimization of recovery efficiencies supported by spreadsheet calculations. As to single-phase-one component fluid transport, it is shown how to deal with inertia, anisotropy, heterogeneity and slip. Upscaling requires numerical methods. The main application of transient flow is to find the reasons for reservoir impairment. The analysis benefits from solving the porous media flow equations using (numerical) Laplace transforms. The multiphase flow requires the definition of capillary pressure and relative permeabilities. When capillary forces dominate, we have dispersed (Buckley-Leverett flow). When gravity forces dominate, we obtain segregated flow (interface models). Miscible flow is described by a convection-dispersion equation. We give a simple proof that the dispersion coefficient can be approximated by Gelhar's relation, i.e., the product of the interstitial velocity, the variance of the logarithm of the permeability field and a correlation length. The book will appeal mostly to students and researchers of porous media flow in connection with environmental engineering and petroleum engineering.
Upside-Down Gods: Gregory Bateson's World of Difference (Meaning Systems)
by Peter Harries-JonesThis intellectual biography covers the trajectory of Bateson’s career, from his anthropological work in Bali alongside his wife, Margaret Mead, to his contributions to family therapy in the United States, and to studies of recursion as a feature of communication patterns in both the human and in the animal world. Layers of feedback with their many differing contexts, highlight the presence of meaning in social relations in contrast to that absence of meaning, purposefully proposed, within information theory. Throughout the human and in the animal world, recursion of feedback accounts for grasp of patterns, their difference, and with ability to communicate, enable transduction of perceptions of difference.Bateson’s insistence on feedback and communication re-frames many aspects of culture, psychology, biology, and evolution. His legacy is recognized as an important precursor to the formation of a new science called Biosemiotics.Harries-Jones argues that Bateson turns conventional causality upside down through showing how humanity’s perceptions, as with perceptions of all sentient beings, are anticipative. All sentient beings abduct from recursive patterns, rather than relying on linear evidence gathered about time/space movements of objects. Thus circular pattering provides clearer perceptions of the difference between sustainable creativity and current biocide, between our appreciation of nature’s aesthetics and time/space ‘games of power’ which underlie so many social and biological theories.
Upstream Oil and Gas in Ghana: Legal Frameworks and Emerging Practice (Routledge Research in Energy Law and Regulation)
by Thomas Kojo StephensThis book explores the myriad issues that play out in the upstream petroleum industry of Ghana from a legal perspective. Focusing on Ghana as an emerging petroleum country, Thomas Kojo Stephens begins by examining whether the existing constitutional framework will be effective in governing the expanding oil and gas sector. Drawing on various approaches proffered by other experts in the field, Stephens looks at possible institutional structures that could be put in place and juxtaposes these ideas with the experience of Ghana to test the efficacy of these proposals. He also explores the types of contractual frameworks currently implemented in Ghana for comparison with other emerging petroleum economies, examining the barriers to effectiveness, novel provisions that must be incorporated, and lessons learned from other regions. Finally, the book highlights how vital it is for the Ghanaian State to monitor the use of petroleum revenue and make ethical investment decisions that prioritize the interests of Ghanaian citizens. Upstream Oil and Gas in Ghana will be of great interest to students and scholars of energy law and policy, oil and gas management, and African Studies more broadly, as well as those working in the upstream petroleum industry.
Upstream: Salmon and Society in the Pacific Northwest
by Committee on Protection Management of Pacific Northwest Anadromous SalmonidsThe importance of salmon to the Pacific Northwest--economic, recreational, symbolic--is enormous. Generations ago, salmon were abundant from central California through Idaho, Oregon, and Washington to British Columbia and Alaska. Now they have disappeared from about 40 percent of their historical range. The decline in salmon numbers has been lamented for at least 100 years, but the issue has become more widespread and acute recently.The Endangered Species Act has been invoked, federal laws have been passed, and lawsuits have been filed. More than $1 billion has been spent to improve salmon runs--and still the populations decline.In this new volume a committee with diverse expertise explores the complications and conflicts surrounding the salmon problem--starting with available data on the status of salmon populations and an illustrative case study from Washington state's Willapa Bay.The book offers specific recommendations for salmon rehabilitation that take into account the key role played by genetic variability in salmon survival and the urgent need for habitat protection and management of fishing.The committee presents a comprehensive discussion of the salmon problem, with a wealth of informative graphs and charts and the right amount of historical perspective to clarify today's issues, including Salmon biology and geography--their life's journey from fresh waters to the sea and back again to spawn, and their interaction with ecosystems along the way. The impacts of human activities--grazing, damming, timber, agriculture, and population and economic growth. Included is a case study of Washington state's Elwha River dam removal project. Values, attitudes, and the conflicting desires for short-term economic gain and long-term environmental health. The committee traces the roots of the salmon problem to the extractive philosophy characterizing management of land and water in the West. The impact of hatcheries, which were introduced to build fish stocks but which have actually harmed the genetic variability that wild stocks need to survive. This book offers something for everyone with an interest in the salmon issue--policymakers and regulators in the United States and Canada; environmental scientists; environmental advocates; natural resource managers; commercial, tribal, and recreational fishers; and concerned residents of the Pacific Northwest.
Uptime: Strategies for Excellence in Maintenance Management, Third Edition
by Hyung Sik Kim James V. Reyes-Picknell John D. CampbellUptime describes the combination of activities that deliver fewer breakdowns, improved productive capacity, lower costs, and better environmental performance. The bestselling second edition of Uptime has been used as a textbook on maintenance management in several postsecondary institutions and by many companies as the model framework for their mai
Uranium Deposits of the World
by Franz J. DahlkampUranium Deposits of the World, in four volumes, comprises an unprecedented compilation of data and overviews of the key uranium regions throughout the globe. It offers not only a complete uranium-resource reference based on the latest research but also access to previously unavailable data. Each country and region receives an analytical overview followed by the detailed geologically- and economically-relevant synopsis of the individual regions and fields, including: location and magnitude of uranium districts and deposits; principal features of uranium districts; and characteristics of selected deposits. The description of districts and deposits includes sections on geology, alteration, mineralogy, shape and dimensions, ore controls or recognition criteria, and metallogenetic aspects. A typological classification of uranium deposits is added to give an overview of principal criteria of deposit types and related nomenclature. The set also provides readers access to the voluminous literature via the comprehensive bibliography of uranium-related publications. Abundantly illustrated with information-laden maps and charts throughout, this reference work is an indispensable tool for geologists, mining companies, government agencies, and others with interest in key natural resources. The four volumes of Uranium Deposits of the World, available as set, cover the world's populated continents: Asia; Europe; Australia, Oceania, and Africa; and USA, and Latin America.
Uranium Frenzy: Saga of the Nuclear West
by Raye RingholzNow expanded to include the story of nuclear testing and its consequences, Uranium Frenzy has become the classic account of the uranium rush that gripped the Colorado Plateau region in the 1950s. Instigated by the U.S. government's need for uranium to fuel its growing atomic weapons program, stimulated by Charlie Steen's lucrative Mi Vida strike in 1952, manned by rookie prospectors from all walks of life, and driven to a fever pitch by penny stock promotions, the boom created a colorful era in the Four Corners region and Salt Lake City (where the stock frenzy was centered) but ultimately went bust. The thrill of those exciting times and the good fortune of some of the miners were countered by the darker aspects of uranium and its uses. Miners were not well informed regarding the dangers of radioactive decay products. Neither the government nor anyone else expended much effort educating them or protecting their health and safety. The effects of exposure to radiation in poorly ventilated mines appeared over time.
Uranium Mining in Virginia: Scientific, Technical, Environmental, Human Health and Safety, and Regulatory Aspects of Uranium Mining and Processing in Virginia
by Committee on Uranium Mining in VirginiaUranium mining in the Commonwealth of Virginia has been prohibited since 1982 by a state moratorium, although approval for restricted uranium exploration in the state was granted in 2007. Uranium Mining in Virginia examines the scientific, technical, environmental, human health and safety, and regulatory aspects of uranium mining, milling, and processing as they relate to the Commonwealth of Virginia for the purpose of assisting the Commonwealth to determine whether uranium mining, milling, and processing can be undertaken in a manner that safeguards the environment, natural and historic resources, agricultural lands, and the health and well-being of its citizens. According to this report, if Virginia lifts its moratorium, there are "steep hurdles to be surmounted" before mining and processing could take place within a regulatory setting that appropriately protects workers, the public, and the environment, especially given that the state has no experience regulating mining and processing of the radioactive element. The authoring committee was not asked to recommend whether uranium mining should be permitted, or to consider the potential benefits to the state were uranium mining to be pursued. It also was not asked to compare the relative risks of uranium mining to the mining of other fuels such as coal. This book will be of interest to decision makers at the state and local level, the energy industry, and concerned citizens.
Uranium Processing and Properties
by Mark J. Jackson Jonathan S. MorrellUranium Processing and Properties describes developments in uranium science, engineering and processing and covers a broad spectrum of topics and applications in which these technologies are harnessed. This book offers the most up-to-date knowledge on emerging nuclear technologies and applications while also covering new and established practices for working with uranium supplies. The book also aims to provide insights into current research and processing technology developments in order to stimulate and motivate innovation among readers. Topics covered include casting technology, plate and sheet rolling, machining of uranium and uranium alloys, forming and fabrication techniques, corrosion kinetics, nondestructive evaluation and thermal modeling.
Uranium in Plants and the Environment (Radionuclides and Heavy Metals in the Environment)
by Dharmendra K. Gupta Clemens WaltherIn recent years, radioactive contamination in the environment by uranium (U) and its daughters has caused increasing concerns globally. This book provides recent developments and comprehensive knowledge to the researchers and academicians who are working on uranium contaminated areas worldwide. This book covers topics ranging from the beginning of the nuclear age until today, including historical views and epidemiological studies. Modelling practices and evaluation of radiological and chemical impact of uranium on man and the environment are included. Also covered are analytical methods used for the determination of uranium in geo/bio environments. Some chapters explore factors which influence uranium speciation and in consequence plant uptake/translocation. Last but not least, several chapters provide approaches and practices for remediation of uranium contaminated areas.
Urban Adaptation to Climate Change: The Role of Urban Form in Mediating Rising Temperatures (SpringerBriefs in Environmental Science)
by Vivek Shandas Cynthia Skelhorn Salim FerwatiThis book presents the findings of a three-year study on urban heat in Doha, Qatar, and discusses guidelines and strategies for planning agencies to consider in the context of moderating temperatures to provide pedestrians with greater access to outdoor spaces and greater choice in modes of transport. If modifying urban form can reduce extreme temperatures in one of the hottest places on the planet, then perhaps other communities can learn how to create livable cities during a time of rapid changes to the climate. In fact, despite the periods of extreme heat, strategic planning and management of urban areas can improve residents’ and visitors’ ability to live, work, and move throughout the city comfortably. Doha, Qatar, a city with one of the most extreme climates on earth, has undergone rapid development over the past 40 years. Although cities in the Middle East are expanding at three times the international average (UN Report, 2012), the rapid population and physical growth remain largely unexamined, particularly in terms of the unique conditions, qualities, and characteristics that give rise to these emerging centres. Speed, quality, and extent of urbanization impact neighbourhood-scale environmental conditions, and this book provides evidence that urban forms and materials can help to mediate temporal variation in microclimates and that landscape modifications can potentially reduce temperatures and increase accessibility to outdoor environments. By applying the lessons in this book, communities around the world can better adapt to the increasing frequency, duration and intensity of extreme heat.
Urban Agriculture and Community Values: The Green Transformation of Cities
by Lisa NewtonThis book addresses the evolving crisis in agriculture and sketches the 'community economy' that grounds agricultural enterprise more accurately than the industrial model. In its current practice, agriculture is (in the United States but increasingly in the rest of the world) unsustainable and destructive. The most immediately unsustainable feature of industrial agriculture is its dependence on the products of petroleum—as feedstock for fertilizers, herbicides, and pesticides, and as fuel for the farm machinery and transport of agricultural products into the cities. The problems of agriculture and in general the food systems to which it is attached range from the vulnerability of monocultures to new and stronger pests to the emerging medical problem of obesity. The need for agricultural reform is widely acknowledged; one part of the new work being done suggests that food production in the cities may solve several of its problems at once. This book is suitable for both undergraduate and graduate students in agriculture and environmental studies.
Urban Agriculture in Public Space: Planning and Designing for Human Flourishing in Northern European Cities and Beyond (GeoJournal Library #132)
by Deni Ruggeri Beata SirowyThis open access book discusses urban agriculture initiatives integrated in public space of dense inner-city neighbourhoods, thereby ensuring its accessibility for large and diverse segments of urban populations. It specifically focuses on the potential impacts of urban agriculture on human well-being (both on individual and community levels), and how planning, design, policy and management practices can maximize these impacts. The book addresses urban agriculture on both a micro and macro scale to facilitate a transition to more sustainable lifestyles and enhance the quality of urban life. It also discusses ways to permanently integrate urban agriculture in existing and planned public spaces in a visually attractive, socially inclusive, and democratic manner to claim and reclaim the right to the city. Based on the research outcomes of the project “Cultivating Public Space: urban agriculture as a basis for human flourishing and sustainability transition in Norwegian cities” funded by the Research Council of Norway, the book emerges from a Norwegian context, but extends to include international urban agriculture cases from the Netherlands, Denmark, the UK and more. By including a diversity of voices and cultural perspectives, the editors aimed to make this book engaging and relevant to an international audience of researchers, policy makers, urban designers, planners, educators, community activists, residents, and public space users of the sustainable, compact city of today and the future.
Urban Agroecology: Interdisciplinary Research and Future Directions (Advances in Agroecology #23)
by Monika Egerer Hamutahl CohenToday, 20 percent of the global food supply relies on urban agriculture: social-ecological systems shaped by both human and non-human interactions. This book shows how urban agroecologists measure flora and fauna that underpin the ecological dynamics of these systems, and how people manage and benefit from these systems. It explains how the sociopolitical landscape in which these systems are embedded can in turn shape the social, ecological, political, and economic dynamics within them. Synthesizing interdisciplinary approaches in urban agroecology in the natural and social sciences, the book explores methodologies and new directions in research that can be adopted by scholars and practitioners alike. With contributions from researchers utilizing both social and natural science approaches, Urban Agroecology describes the current social-environmental understandings of the science, the movement and the practices in urban agroecology. By investigating the role of agroecology in cities, the book calls for the creation of spaces for food to be sustainably grown in urban spaces: an Urban Agriculture (UA) movement. Essential reading for graduate students, practitioners, policy makers and researchers, this book charts the course for accelerating this movement.
Urban Air Pollution Monitoring by Ground-Based Stations and Satellite Data: Multi-season Characteristics From Lanzhou City, China
by Haowen Yan Mikalai FilonchykThis book examines air pollution of a big city using multi-year and multi-season data from ground-based air monitoring stations and satellite sounding data, which provides more clear and detailed information on the main sources of air pollution, the long-term trend of pollution, the influence of meteorological parameters on pollution levels, and trajectories of polluted air masses. For example, the book shows that particulate matter from local sources is transported from deserts to create air quality challenges. It also analyzes the effects of desert and semi-desert landscapes on high concentrations of pollutants.
Urban Air Quality Monitoring, Modelling and Human Exposure Assessment (Springer Transactions in Civil and Environmental Engineering)
by Andrea Müller S. M. Shiva Nagendra Uwe Schlink Mukesh KhareThis contributed volume is primarily intended for graduate and professional audiences. The book provides a basic understanding of urban air quality issues, root causes for local and urban air pollution, monitoring and modelling techniques, assessment, and control options to manage air quality at local and urban scale. The book also offers useful information on indoor air quality and smart sensors, which are gaining much importance in current times.
Urban Biodiversity and Built Environment: Case Study of Shanghai
by Jing GanThis book proposes the concept of urban multiple habitats and then analyzes its corresponding classification, function and potential supply capability. It provides an analysis framework for studying the relationship between urban biodiversity and built environment, and for considering the loss of urban habitats caused by high-density development. It argues that urban biodiversity is a key indicator for assessing urban ecosystem services. On this basis, the book then presents a case study mainly focusing on wild birds in Shanghai, as urban wild birds and their species could be viewed as an essential indicator for evaluating healthy ecosystem of contemporary cities. Based on the empirical findings, the book proposes an assessment model for urban biodiversity performance and a range of principles, strategies and key indicators regarding the optimization of urban planning and design practice to enhance urban biodiversity performance.
Urban Biodiversity and Ecological Design for Sustainable Cities
by Keitaro ItoThis book highlights various designs for urban green spaces and their functions. It provides an interesting meeting point between Asian, European and North America specialists (researchers, planners, landscape architects) studying urban biodiversity; urban biodiversity and green space; relations between people and biodiversity. The most important feature of this book is the unique point of view from each contributor towards “the relationship between nature and people in urban areas”, in the context of the ecosystem and biodiversity in urban areas and how to manage them. All chapters explore and consider the relationship between humans and nature in cities, a subject which is taking on increasing importance as new cities are conceptualized and planned. These discussion and examples would be useful for urban ecology researchers, biologists, city planners, government staff working in city planning, architects, landscape architects, and university instructors. This book can also be used as a textbook for undergraduate and postgraduate city planning, architecture or landscape architecture courses.
Urban Climate Science for Planning Healthy Cities (Biometeorology #5)
by Chao Ren Glenn McGregorThis volume demonstrates how urban climate science can provide valuable information for planning healthy cities. The book illustrates the idea of "Science in Time, Science in Place" by providing worldwide case-based urban climatic planning applications for a variety of regions and countries, utilizing relevant climatic-spatial planning experiences to address local climatic and environmental health issues. Comprised of three major sections entitled "The Rise of Mega-cities and the Concept of Climate Resilience and Healthy Living," "Urban Climate Science in Action," and "Future Challenges and the Way Forward," the book argues for the recognition of climate as a key element of healthy cities. Topics covered include: urban resilience in a climate context, climate responsive planning and urban climate interventions to achieve healthy cities, climate extremes, public health impact, urban climate-related health risk information, urban design and planning, and governance and management of sustainable urban development. The book will appeal to an international audience of practicing planners and designers, public health and built environment professionals, social scientists, researchers in epidemiology, climatology and biometeorology, and international to city scale policy makers.
Urban Coasts in Socio-ecological Transition: A Methodological Framework to Support Planning and Management of the City-Sea Interface (Springer Tracts in Civil Engineering)
by Ivan PistoneThis book delves into the concept of city-sea interface as a space of strong physical, ecological, social and functional connection between the edge of the city and the edge of the water, recalling the idea of an urban amphibious, in relation to its flexibility to community, environmental and management issue that prevent the sustainable development of urban coasts. In particular, the volume relates the spatial planning of littoral spaces with the demands of contemporary urban coastal society, since such complex places constitute crucial hubs for the fruition of coastal ecosystem services. The work explores these topics in the Euro-Mediterranean context, with regard to densely urbanised land-water areas through a methodological framework. A legal analysis describes the main coastal governance and Maritime Spatial Planning guidelines and how they are incorporated in national littoral management systems; the geo-spatial approach defines a spatial data model for the socio-environmental features of the interface; finally, the psycho-social approach aims at studying the social representations in relation to accessibility, uses and planning adaptation. This framework is proposed as a benchmarking tool: specifically, it has been applied to Marseille and Naples, two similar Mediterranean cities with complex city-sea interfaces. Moreover, it may also support the implementation of coastal-maritime planning at a local scale.
Urban Construction and Management Engineering IV
by Seyed Mohammadreza Ghadiri Zhuge YanUrban Construction and Management Engineering IV focuses on the research of construction technology and the engineering management in urban construction. This proceedings gathers the most cutting-edge research and achievements, and will provide scholars and engineers with preferable research directions and engineering solutions as reference. Subjects in this proceedings include: Civil Engineering Engineering Structure Engineering Management Low Carbon City Urban Management The works of this proceedings encourages development of civil engineering and construction technology. Thereby, the work promotes scientific information interchange between scholars from the top universities, research centers and high-tech enterprises working all around the world.
Urban Design
by Christa ReicherIn this basic textbook, prospective architects, urban and landscape planners receive assistance in working on urban development projects and designs. This edition has been expanded by two chapters on informal urban planning and regional urban development. The contents presented and their preparation are based on the design process in practice and embed it in a theoretical framework of necessary background knowledge. As an introduction, an overview of the understanding of the city, of urban structures and the laws governing them is given. In order to make the multi-layered structure of the city more comprehensible, it is broken down into different layers and building blocks. The approach to urban design is described using the "layer method" in the form of successive phases. Examples of urban development projects and competitions illustrate the individual design steps.