Contents:
Waterjetting fundamentals: Introduction. Terminology. What is a waterjet? Where did waterjets come from? How are waterjets used? Why are waterjets used? What is this book planning on doing?
Design of high pressure delivery circuits: Introduction. Example of energy efficiency; Energy input to the motor; Input power to the pump; Output power from the pump to the water; Output power supplied to the jet at the nozzle; Delivered power at the surface. Pump choices; Triplex and positive displacement pumps; Intensifier designs; Water cannons and ultra-high pressure systems. Power calculations. Pump selection criteria. Transmitting the energy. Nozzle considerations; Nozzle size; Nozzle performance; Nozzle design; Nozzle evaluation techniques; High pressure cutting nozzles; Waterjet cleaning nozzles; Droplet impact; The choice between round and fan-jet nozzles. Supply line and fittings; Component pressure losses; Procedure for evaluating friction loss; Flow straighteners. Delivering the energy. Using the energy. Notes and references.
The use of waterjets in cleaning applications: Introduction. Earlier and competing methods of cleaning; Airborne abrasive cleaning; air abrasive nozzle design and manufacture; Cleaning effectiveness; Angle of impact; Airborne abrasive machining; Abrasive use; Steam powered systems. Low pressure waterjet cleaning. Cleaning tubes, pipes and sewers; Cleaning small tubes; Moleing; Cleaning larger diameter tubes; Sewer cleaning. Parameter control for effective cleaning. Cleaning tanks and large surfaces; Hand-held equipment; Underwater cleaning. Advent of high preesure; Round and fan nozzles revisited; Cleaning radio-active pipes; Runway cleaning. Abrasive jet cleaning systems. Cleaning additives. Underwater applications. Lessons for use. Notes and references.
High pressure industrial waterjet cutting: Introduction. Background. Equipment for industrial applications; Activation valve and catcher; Inlet water treatment. Nozzle and part positioning-robotic use; Robots and their control; Accuracy and precision; Case studies of X-Y cutting. Multi-dimensional cutting; Considerations in the use of industrial waterjet cutting; Explosive material processing; Cut edge quality. Techniques for cutting harder materials; Non-traditional machining; Laser machining; Plasma torch; Electric discharge machining; Electrochemical machining; Ultrasonic machining; Abrasive flow machining; Comparisons of performance. Abrasive water cutting; Nozzle design; Abrasive jet case studies; Operational considerations; Glass cutting. Intermediate pressure abrasive jet cutting. Direct injection of abrasive; DIAjet case study; Underwater applications. Future technology; Waterjet machining; Waterjet assisted machine tool cutting. Notes and references.
Waterjets in civil engineering applications: Introduction. Earth moving applications; Soil removal in California during the gold rush; The extraction of clay and monitor design; Soviet experience in soil removal; Tunnelling in soft material; Reduced flow rate studies. The mechanism of soil removal; Frozen soil and the change in cutting mechanism; Cutting and removal of ice. Applications of waterjets in soil excavation; Excavation of the Bar-Lev line; Soil excavation and barrier walls; Grout walls and artificial pile construction; horizontal hole drilling; Joint and gap cleaning; Soil and turf penetration; Waterjet assisted earth plow. Concrete cutting and hydrodemolition; The initial study; Establishing the parameters; High pressure single pulse units; Continuous high pressure low flow systems; Continuous medium pressure flow systems; Case histories; Injection of abrasive for concrete cutting; Cutting concrete with cavitation; Notes and references.
The use of waterjets in mining: Introduction. Coal mining development; Soviet Developments; Trials in the United Kingdom; Developments in the United States; Higher pressure coal mining research; 450 MPa system for room and pillar coal mining; 330 MPa system for room and pillar coal mining; 70 MPa system for longwall coal mining; 70 MPa system for room and pillar coal mining. Japanese operations; Chinese hydraulic mining; Canadian hydraulic mining experience; German hydraulic mining experience; Polish experiments. Borehole mining. Notes and references.
Waterjet use in rock cutting: Rock disaggregation. Development of water cannons. Very high pressure continuous jets. Mechanisms of material removal; Jet impact on a rock; The effect of equipment parameters; The effect of rock properties. Applications of waterjets in cutting rock. Notes and references.
Waterjet drilling systems: Early drilling development. Waterjet drilling of rock bolt holes. Canadian waterjet drill bit design. Waterjet assisted percussive drilling. Waterjet drilling in coal and adjacent rock. Waterjets in oilwell drilling. Round the corner drilling. Borehole modification. Abrasive waterjet drilling. References.
Jet assisted mechanical cutting: Introduction and definitions. Mechanically assisted waterjet cutting. Waterjet assisted mechanical cutting equipment. Jet assisted cutting of coal. References.
Enhancing waterjet performance: Introduction. Enhancing the delivered jet power; The use of a sheath around a jet; Water chemistry changes; The introduction of long chain polymers. The accumulation of waterjet pressure; Pulsating waterjets; Self-resonating pulsating jets; Focussing multiple jets to generate higher pressures. The generation of cavitation with waterjets; The mechanisms of cavitation attack; ASTM cavitation test; Cavitation sheathing; The stationary specimen test; Cavitation in a flow channel; The Lichtarowicz cell; The travelling specimen test; Applications of cavitating jets; Shock loading. Spark generated jets. The introduction of abrasives into waterjets; The mechanisms of material removal; Ductile material removal; Brittle material removal; Considerations in mixing chamber design; Abrasive jet parameter effects; Choice of abrasives; DIAjet abrasive waterjet cutting; Modelling of abrasive jet cutting. Thermal pre-weakening with waterjets. Comment and references.
Theoretical considerations: Introduction. Jet energy considerations. Early theoretical approaches. Powell and Simpson's theory. Foreman and Secor's theory. Crow's theory. Rehbinder's theory. Energy input & crack growth considerations. References.
Safety, health and medical applications: Introduction. Damaging jet pressures; Possible damage mechanisms; Needle-less injection systems. Other safety considerations. The role of training. Medical applications. Comments and references.

The depletion of the tropical rain forests has attracted considerable attention in recent times, and the serious consequences for the global biosphere are widely acknowledged. Yet deforestation continues apace, and in some areas (for example, southeast Asia) the very existence of the forests is seriously threatened. Contrary to popular belief, evidence suggests that local economic and living conditions are more significant in this than timber exploitation for exports to the Northern countries."Tropical Deforestation: A Socio-Economic Approach" offers a new perspective on the economic imperatives which encourage indigenous populations to encroach upon their own forests, and shows how action against deforestation must form part of a wider movement to improve both the living conditions of the local inhabitants and the durability of their national economies.Part One offers an overview of the processes surrounding deforestation, and an assessment of the current situation. Part Two analyses the land-use issues, and explains the socioeconomic imperatives in the affected regions. In an absorbing conclusion. Part Three guides the reader through a series of hypothetical policy scenarios, using a specially adapted economic computer model, to predict which combinations of policies and trade arrangements might bring about a more beneficial state of affairs.

Assessing Forest Ecosystem Health in the Inland West is a thorough reference for policymakers, resource managers, environmentalists, students, and anyone interested in using ecosystem management as a tool to address forest health problems in the Inland West. The book provides the reader with a survey of current conditions in the Inland West, their historical origins, assessments of available management tools, and analyses of the various choices available to policymakers. Its goal is to help people understand the Inland West forests so that public policies can reflect a constructive and realistic framework in which forests can be managed for sustained health. This resource is the product of a scientific workshop where 35 participants, including scientists, resource managers, administrators, and environmentalists, addressed the forest health problem in the Inland West. Synthesis chapters integrate the diverse knowledge and experience which participants brought to the workshop. They identify and link together many of the ecological, social, and administrative conditions which have created the forest health problem in the West. The book is unique in that it reflects a process that fostered the use of academic research, field realities, and industrial knowledge to define an interdisciplinary problem, establish rational policy objectives, and set-up "do-able" management approaches.The following topics are analyzed: Assessing forest ecosystem health in the Inland West Historical and anticipated changes in forest ecosystems in the Inland West Defining and measuring forest health Historical range of variability as a tool for evaluating ecosystem change Administrative barriers to implementing forest health problems Economic and social dimensions of the forest health problem Fire management Ecosystem and landscape managementAssessing Forest Ecosystem Health in the Inland West will help facilitate sound resource planning because it brings together the problems facing the Inland West from an interdisciplinary perspective. This approach allows resource managers and policymakers creativity in planning and implementing strategies to confront forest health problems in the Inland West ecosystems.

Growers, packers, processors, and distributors of apples who wish to survive into the twenty-first century need to understand that they are now operating in an interconnected world market. The World Apple Market explains in lay terms the economics of the changes taking place in each phase of the apple business and assists firms in weighing decisions on organization, adoption of new technology, distribution systems and other crucial areas, allowing them to adjust operations and refocus their activities for the future.Readers will find the best available data on current industry operations and practices in this book, which is helpful to both established firms and new operators in reviewing their practices. Author A. Desmond O?Rourke describes evolving world apple supply and demand, changing distribution systems, and governmental and other societal pressure to which the industry must respond. Throughout, the book focuses on the economic forces which affect firm and industry profitability and evenmore specifically, it focuses on how to maintain cost efficiency while maintaining the quality of a perishable product.The World Apple Market explains the economics of practical decisionmaking at every level of the apple industry. This is crucial information for managers of operations that grow, pack, process, and market apples. As changes in market demand, distribution systems, and government regulation continue to alter the environment for decisionmaking, this book assists all involved in the apple market from researchers and extension agents, to industry associations, suppliers, and apple promoters, to government planners, students planning to enter the apple industry, and investors weighing thefeasibility of participating in the industry at any level.

For centuries, denuded landscapes, fouled streams, and dirty air were accepted by society as part of the price that had to be paid for mineral production. Even initial environmental legislation devised by industrialized countries in the 1960s and 1970s was largely designed without mining in mind. And developing countries had little in the way of environmental policy. With the advent of sustainability in the 1990s, times have changed. Today's economic development, many now feel, must not come at the expense of an environmentally degraded future. Current policies toward mining are under rigorous review, and mineral-rich developing countries are designing environmental policies where none existed before. In Mining and the Environment, noted analysts offer viewpoints from Australia, Chile, the United Kingdom, the United States, and the European community on issues and challenges of metal mining.

Urban and Regional Agriculture: Building Resilient Food Systems explores the sustainable integration of food provision, distribution and consumption through urban farms, agricultural systems, user communities and structural facilities designed to optimize food production and consumption. The book addresses the fundamental and pressing challenges of urban planning problems, waste minimization, food sourcing, access and equity issues, and multiple land use optimization. Sections cover the need and opportunities of urban agriculture, discuss tradition and transition, space and regulatory topics, explore the range of urban agriculture options (aquaculture to urban permaculture), discuss support structures and constructs of physically creating urban agricultural areas, and much more. Edited and authored by leading experts in the field, this volume will be valuable for those working to address issues of food security in urban environments.

The Coal Handbook: Towards Cleaner Coal Utilization, Volume Two, Second Edition provides authoritative insights on a variety of case studies to help the reader identify the most appropriate technologies to take coal, and its associated by-products, into a cleaner environment, one with integrated energy systems. Editor Dave Osborne and his team of expert contributors combine their expertise to highlight the future direction of coal utilization towards more efficient and clean use of coal. Key emerging topics such as the cleanest ways to deal with coal waste and emission reduction are covered alongside a selection of case studies from various countries. This edition includes two brand new chapters on technology variants and systems, including hybrid systems and advanced CO2 abatement strategies. With its distinguished editor and international team of expert contributors, this book is a comprehensive and invaluable resource for professionals in the coal mining, preparation and utilization industry.

Agricultural Bioeconomy: Innovation and Foresight in the Post-COVID Era presents recent advancements in biotechnology, exploring the optimal utilization of technologies to provide rapid and impactful economic recovery and sustainable resources in a future that will bear the mark of COVID-19. Understanding that there is a necessary balance between risk and reward, this book provides a foundational hypothesis as well as operational direction for addressing the commercialization and regulatory issues in a bio-based economy where agricultural output is at the core. By presenting adaptable practices to successfully establish and progress agri-based global bioeconomies, the book features a new paradigm focused on technological foresight and response to future risks and disasters. Key considerations include assessing and managing the urban bioeconomy, climate change mitigation, biofuels and bioenergy, GMOs, and employment generation. This book provides the solid next step toward future-proofing global economies using a combination of agricultural technologies and economic goals. Professionals and advanced students focused on the production of renewable biological resources and their conversion into value-added products including food, feed, bio-based products, and bioenergy will find this book useful.

Economics of Aquaculture presents basic economic theory in a concise and logical format which is easily adaptable to practical application. Examples of economic solutions to common problems help you understand the need for economic application to aquaculture and the success that may come with sound economic planning and management. It also provides coverage of virtually all basic principles of microeconomics, farm management finance, and marketing applicable to the aquacultural industry. You will "walk" through the intricate maze of decisions which are necessary for success in the business environment.The regular and on-going business of aquacultural production and marketing is addressed as a continuous problem set for the student or producer. Business decisions are shown to be logical extensions of those in production and vice versa. A successful producer must be a successful business person if production is to remain an option. Thus, the real and logical need for economics in production is carefully presented.Additionally, producers and students alike will find that application of careful economic planning results in long-term viability for individual producers as well as community projects, cooperatives, or even governmental projects. Special sections in the book illustrate the savings or costs of right and wrong decisions as well as those related to short versus longer term planning and investment. Other topics covered in this book include: role of aquaculture in economic development fish demand and supply farm management and operation time value of money in the short- and long-term capital budgeting market structure and price theory government in aquacultureAlong with students, other readers will find the business help they need in Economics of Aquaculture. Professional aquaculturalists will find the topics of basic production economics, marketing, and cost analysis particularly relevant and governmental administrators will find the presentation of basic principles, time value of money, capital budgeting, and the role of government in aquaculture a valuable resource for years to come.

Petroleum engineers search through endless sources to understand oil and gas chemicals, identify root cause of the problems, and discover solutions while operations are becoming more unconventional and driving toward more sustainable practice. Oil and Gas Chemistry Management Series brings an all-inclusive suite of tools to cover all the sectors of oil and gas chemistry-related issues and chemical solutions from drilling and completion, to production, surface processing, and storage. The fourth reference in the series, Surface Process, Transportation, and Storage delivers the critical basics while also covering latest research developments and practical solutions. Organized by the type of challenges, this volume facilitates engineers to fully understand underlying theories, practical solutions, and keys for successful applications. Basics include produced fluids treating, foam control, pipeline drag reduction, and crude oil and natural gas storage, while more advanced topics cover CO2 recovery, shipment, storage, and utilization. Supported by a list of contributing experts from both academia and industry, this volume brings a necessary reference to bridge petroleum chemistry operations from theory into more cost-effective and sustainable practical applications.

Agricultural Productivity: Measurement and Sources of Growth addresses measurement issues and techniques in agricultural productivity analysis, applying those techniques to recently published data sets for American agriculture. The data sets are used to estimate and explain state level productivity and efficiency differences, and to test different approaches to productivity measurement. The rise in agricultural productivity is the single most important source of economic growth in the U.S. farm sector, and the rate of productivity growth is estimated to be higher in agriculture than in the non-farm sector. It is important to understand productivity sources and to measure its growth properly, including the effects of environmental externalities.

Both the methods and the data can be accessed by economists at the state level to conduct analyses for their own states. In a sense, although not explicitly, the book provides a guide to using the productivity data available on the website of the U.S. Department of Agriculture/Economic Research Service. It should be of interest to a broad spectrum of professionals in academia, the government, and the private sector.

The agricultural and rural crisis besetting Africa is the result of both policy failures and inadequacies and the product of structural rigidities inhibiting access to and control of vital resources. The challenge of leadership in the agricultural sector is how to design and implement policies which would help induce growth and development in this sector. It is against this background that the Africa Leadership Forum convened in Ota, Ogun State, Nigeria in July of 1989 to explore a broad range of parameters to be addressed in the formulation of successful policies. This volume is derived from papers submitted and presentations made. The book provides the main conclusions and recommendations which emanated from the conference. They highlight a series of actions which must be taken in such areas as women in agriculture, small-scale farmers, agribusiness, subsidies, human capital, and linkages between international and national research anbd energy. Other topics include - Africa's security situation; social and economic factors, ecology, and social engineering; dietary patterns in Africa; pest management; agricultural practice; and international organizations. It is aimed at economists, anthropologists, ecologists, agriculturalists, social and political scientists, and all those interested or involved in agricultural production in Africa and other underdeveloped countries.

examines policy responses to food waste and loss draws on in-depth case studies and action research provides a detailed evaluation of food loss and waste policies will be of great interest to students and scholars working on food waste, food policy, sustainable food systems, agricultural production and supply chains and public policy, as well as policymakers involved with developing and implementing programmes and policies to regulate and reduce food waste and loss

Potato is a crop grown on all inhabited continents of the globe. It is included in the top five crops of the world, used as staple food in several countries, and the number of people daily consuming the potato may surpass one billion. Despite the high quantities of seed potato produced worldwide, there are yield gaps due to challenges such as abiotic stresses, pests, climate change and poor production practices. A region-wide critical analysis of yield declining factors can help formulate management strategies that can improve potato yields. Bridging yield gaps in potato will ultimately ensure the role of this crop in securing current and future food security. Potato Production Worldwide presents information on this global crop from its history, morphology, and taxonomy to the growth and development of the potato crop, including the latest strategies in addressing today's biotic and abiotic challenges. This book identifies the reasons for yield gaps in various potato production regions of the world, as well as presenting the best production practices, pest management strategies and approaches to deal with climate change from the perspective of potato production. Chapters provide important insights into potato production cultures and approaches in the major potato production countries. Potato Production Worldwide will be a valuable resource for researchers, scientists and students seeking a comprehensive view of successful potato production.

Since 1993 a major research programme, "Stochastic Decision Analysis in Forest Management" has been running at Department of Economics and Natural Resources, The Royal Veterinary and Agricultural University (KVL), Copenhagen, in collaboration with Institute of Mathematical Statistics, University of Copenhagen (KU). The research is funded by the two Universities; The Danish Agricultural and Veterinary Research Council; The Danish Research Academy; The National Forest and Nature Agency; and Danish Informatics Network in the Agricultural Sciepces (DINA). A first international workshop in the research programme was held 5 - 8 August, 1996 at Eldrupgaard, Denmark, within the frameworkofacollaborationagreementbetween University of California at Berkeley (UCB) and the Danish Universities, and funded by The Danish Research Academy and the L0venholm Foundation. Having participated in the workshop, Professor Peter Berck (UCB) suggested that the papers be published along with selected papers in the same scientific field, i.e. mainly cointegration analysis of time series in forestry. The editors express their sincere appreciations to the many persons who have contributed to the realisation of the present book: participants in the research programme and the workshop, in particular Professors S0ren Johansen (KU) and Peter Berck (UCB); authors outside the programme/workshop; reviewers of the papers not previously published, in particuler Associate Professors Niels Haldrup (Aarhus University) and Henrik Hansen (KVL); and finally Mrs Mette Riis and Lizzie Rohde who did the tedious work of giving the papers a uniform style. Copenhagen, October 1998.

Social, economic, political, business, and cultural environmental factors affect the international marketing operation and performance of international firms. This highly insightful volume focuses on four of the most significant forces with which companies must deal on an international level--macro international marketing issues, sociopolitical international marketing issues, international marketing strategies, and special international marketing topics. Within this framework, experts examine the impact of two major environmental factors, namely the social and political conditions, on international companies to adopt corresponding marketing techniques and practices in different international markets. They also explore how specific details of a country, such as income level, cultural attributes, consumer characteristics, laws, and politics, influence the market potential of international firms and thus the scale of the company operations. Indispensable reading for scholars, economists, and business people who are interested in marketing on a global scale.

European agriculture is on the brink of a financial and ecological crisis. The European Community, individual governments, and the industry itself have precipitated this crisis. Controversy follows controversy -- in the areas of pollution, use of chemicals, land degradation, and overproduction. "The Diversion of Land" assesses the conservation challenge at the end of a long period of agricultural expansion. The book draws on the experience of continental Europe and North America to contextualize a case study analysis of the U.K. Incorporating new research and a new methodology for the targeting of land diversion, the emphasis throughout is on the agricultural adjustment process. This process, the authors argue, must be informed not only by an ecological awareness, but also by the anticipation of economic and social change.

This wise, eloquent volume distils the essence of Dr. Jerry Lewis' rich 25-year background in the teaching of psychotherapeutic skills to residents and other professionals - skills that are central to the core identity of the psychiatrist.

'Powerful' - Silvia Federici It's in our food, our cosmetics, our fuel and our bodies. Palm oil, found in half of supermarket products, has shaped our world. Max Haiven uncovers how the gears of capitalism are literally and metaphorically lubricated by this ubiquitous elixir. From its origins in West Africa to today's Southeast Asian palm oil superpowers, Haiven's sweeping, experimental narrative takes us on a global journey that includes looted treasures, the American system of mass incarceration, the history of modern art and the industrialisation of war. Beyond simply calling for more consumer boycotts, he argues for recognising in palm oil humanity's profound potential to shape our world beyond racial capitalism and neo-colonial dispossession. One part history, one part dream, one part theory, one part montage, this kaleidoscopic and urgent book asks us to recognise the past in the present and to seize the power to make a better world.

Supply of oil and gas continues to increase as well as natural events such as hurricanes, while engineers and safety managers are not well trained on storage tank engineering and leak detection, one of the most vulnerable and least studied components of oil and gas storage equipment. Above Ground Storage Tank Oil and Chemical Spills gives engineers and researchers a training guide on tank design, tank failure modes and risk analysis. Bridging between research and application, this reference sends an integrated engineering approach backed by both corporate and academic contributors focused specifically on storage tanks, their spills, case histories, and technical aspects of leakage from storage tanks. Additional topics include regulations, differences between spills from storage tanks and other sources, and supported by extensive data and additional references. Above Ground Storage Tank Oil and Chemical Spills delivers a much-needed knowledge source for today's engineers and managers to keep supply and personnel safe.

This book offers an original perspective on food supply chains. It argues that the ability to trade food on a global scale could be intrinsically good aside from any instrumental value that people gain from it.

Financialization is the increased influence of financial actors and logics on social and economic life, and is one of the key drivers transforming food systems and rural economies around the world. The premise of this book is that the actions of financial actors, and their financial logics, are transforming agri-food systems in profound ways. It is shown that although financialization is a powerful dynamic, some recent developments suggest that the rollout of financialization is contradictory and uneven in different spaces and markets. The book examines cases in which state regulation or re-regulation and social movement resistance are setting roadblocks or speed bumps in the path of financialization, resulting in a 'cooling off' of investment, as well as the other side of the argument where there is evidence of a 'heating up'. The authors address not only the limits to financialization, but also the mechanisms through which financial entities are able to penetrate and re-shape agri-food industries. This book provides both a comparative analysis of financialization blending, and empirical findings with conceptual insights. It explores the connection between financialization, food systems, and rural transformation by critically examining: the concept of financialization and how food and farming are being financialized; the impacts of financialization in the food industry; and financialization in farming and forestry - along with the impacts this has on rural people and communities. This is a timely book, bringing together concrete case studies, from around the globe, to reveal the operations and impacts of finance capital in the 'space' of agri-food.

This set of proceedings volumes provides a broad coverage of basic and applied research projects dealing with the application of engineering principles to both food production and processing. The set consists of the following four volumes: Land and water use, Agricultural buildings, Agricultural mechanisation and Power, processing and systems. Includes about 450 papers from over 50 countries worldwide, drawn from the Eleventh International Congress on Agricultural Engineering, Dublin, 4-8 September 1989.