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Books > Business & Economics > Industry & industrial studies > Primary industries

The Golden Republic (Paperback): T.V. Bulpin The Golden Republic (Paperback)
T.V. Bulpin
R282 Discovery Miles 2 820 Ships in 4 - 8 working days

In the story of the The Golden Republic, Bulpin sets a stage on which we meet some of the strangest characters that fate had ever attached to the puppet strings of destiny. The grim Mzilikazi; the hot-headed Hendrik Potgieter and his trekkers; prospectors like Charlie the Reefer; gaudy rogues like Gunn of Gunn and his Highlanders; bandits, highwaymen, rand lords, gold rushers, to name just a few. He tells of leaders like Pretorius and Kruger, and many others who each played a part in establishing the Republic of the Transvaal – a seemingly impossible task considering all the small wars and skirmishes on the veld and the rumble of arguments rising out of each farmhouse. In his remarkably engaging style of writing he sketches scenes of rough but beautiful land, which must have been fascinating to explorers who roamed about the old Transvaal with all its scenic novelties where every turn yielded some marvel for the geologist, the botanist, or the zoologist. The Golden Republic tells of the adventure that raised the Republic to its peak and the complex intrigues that brought it down to the dust; of misfortune and riches, and despair of such magnitude that the birth of a Republic seemed inevitable considering the economic disaster it at times experienced … Until gold poked out its shiny head and gave hope again. The characters who crowded into diggers’ towns were some of the wildest and most colourful ever known in the Transvaal. From all over South Africa they flocked to the scene, in the hope of finding fortune. Most of them were just opportunists, who knew nothing about gold except how to spend it. This is a brilliant book of the birth, life and death of the old Republic written in the tell-tale style Bulpin does so well.

The Financialization of Agri-Food Systems - Contested Transformations (Paperback): Andre Magnan, Geoffrey Lawrence, Hilde... The Financialization of Agri-Food Systems - Contested Transformations (Paperback)
Andre Magnan, Geoffrey Lawrence, Hilde Bjorkhaug
R1,283 Discovery Miles 12 830 Ships in 9 - 15 working days

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.

The Trans-Oceanic Marketing Channel - A New Tool for Understanding Tropical Africa's Export Agriculture (Hardcover):... The Trans-Oceanic Marketing Channel - A New Tool for Understanding Tropical Africa's Export Agriculture (Hardcover)
Erdener Kaynak
R4,005 Discovery Miles 40 050 Ships in 12 - 17 working days

If you feel you have a disjointed, or unbalanced, view of the global system of demand and supply, you are probably correct. Most studies leave out a very important part of the system--the marketing channel. That is why Laurens van der Laan developed and wrote this book, The Trans-Oceanic Marketing Channel. To help you understand what happens to export crops, such as cocoa, coffee, cotton, groundnuts, tea, and tobacco, between their country of origin and consumer markets, this book analyzes the roles of different actors in trans-oceanic trade, inherent differences between world markets, export diversification policies, and the commercial and institutional forces at play.The Trans-Oceanic Marketing Channel will give you a strong background in marketing channel concepts, and because of its focus on the exporter rather than on the government, it will provide you with an excellent model for microanalysis. As you read about the special features of trans-oceanic trade, you will also learn about: trade associations and their role in shaping world markets for trans-oceanic crops the uneasy relationship between exporters and shipping companies the selling conduct of agricultural exporters in Africa the tendency of actors in Africa to accelerate the trans-oceanic product flow the effectiveness of export marketing boards as channel leaders private enterprise, the chief agent of development the theory of "exporter preference"The Trans-Oceanic Marketing Channel invites policymakers, international businessmen, professors, and students to examine the opportunities, problems, and policies that confront the various players in trans-oceanic trade, especially the exporters. As the book discusses the divergent institutional arrangements in the world markets for agricultural products and their differential effect on African exports, you will become keenly aware of how vertical marketing systems differ from conventional marketing channels. No other book brings together the three fundamental sections of export agriculture, the country of production, the channel through which the products flow, and the country of destination, to provide you with a complete understanding of trans-oceanic marketing.

Demystifying Dog Behaviour for the Veterinarian (Paperback): Kendal Shepherd Demystifying Dog Behaviour for the Veterinarian (Paperback)
Kendal Shepherd
R865 Discovery Miles 8 650 Ships in 9 - 15 working days

The behaviour textbook that's been missing! - Dr Mandy Roshier, University of Nottingham, School of Veterinary Medicine and Science, UK This practical guide for busy veterinarians demystifies the apparently complex nature of canine behaviour while simultaneously emphasising its importance. Authored by acclaimed veterinary behaviour consultant Kendal Shepherd, the book provides practical knowledge of dog behaviour and an understanding of how to talk about it with clients. Shepherd shows how this can enhance the relationship between owner and pet and between dog and environment, including the vet surgery, as well as improve the vet's own sense of fulfilment and enjoyment of practice. From a discussion on the true nature of obedience to stressing the importance of behavioural indicators when assessing pain and mental welfare and finally by reminding vets of their obligations under Dangerous Dogs legislation, the emphasis is on the prevention of aggression throughout. Packed with anecdotes drawn from real-life cases, easy to read and understand, the principles explained can be effortlessly assimilated into the average consultation without the need for lengthy report-writing.

Wildlife Forensic Investigation - Principles and Practice (Paperback): John E Cooper, Margaret E. Cooper Wildlife Forensic Investigation - Principles and Practice (Paperback)
John E Cooper, Margaret E. Cooper
R2,519 Discovery Miles 25 190 Ships in 9 - 15 working days

Wildlife forensics is the application of forensic science to the conservation and protection of non-domesticated animals, both in the wild and in captivity. Providing an in-depth introduction to this rapidly evolving field, Wildlife Forensic Investigation: Principles and Practice also chronicles aspects of the history of management, conservation, and environmental protection, with an emphasis on their global importance in the twenty-first century. The book examines the crucial role of wildlife forensic investigation with regard to live animals, dead animals and samples and covers national, regional, and international legislation. While the text particularly focuses on forensic science as it relates to wild animals, it also includes mention of plants and habitats because of their relevance to conservation. The book discusses animal welfare as well as the damage that can be inflicted on humans and property by wildlife. Offering access to sound evidence based on good science and obtained using the best available practices, the book is enhanced by case studies from experts who describe some of their own work. This resource is essential for those involved in a range of endeavours, including investigating wildlife crime, identifying animal remains, ascertaining the circumstances of death of wild species, and other legal proceedings and activities concerning wildlife. The forensic skills described in this book can be applied to a wide range of activities (not necessarily involving the legal process), including environmental impact assessments, insurance claims, governmental and other enquiries, checking of trading standards and the inspection of (for instance) pet-shops, animal boarding establishments, and zoological collections. The authors point out that one of the most important requirements of those persons involved in wildlife forensic work is to retain an open mind. Such personnel should also be conscious of new developments and evolving techniques and be able to anticipate situations where their investigative and scientific skills might be used to advantage-so-called "horizon scanning". Examples of these are given.

Microbial Bioprocessing of Agri-food Wastes - Industrial Applications (Hardcover): Gustavo Molina, Minaxi Sharma, Rachid... Microbial Bioprocessing of Agri-food Wastes - Industrial Applications (Hardcover)
Gustavo Molina, Minaxi Sharma, Rachid Benhida, Vijai Kumar Gupta, Ramesh Chander Kuhad
R4,433 Discovery Miles 44 330 Ships in 12 - 17 working days

Microbes are widely used in large-scale industrial processes due to their versatility, easy growing cultivation, kinetic potential, and the ability to generate metabolites with a wide range of potential applications to various commercial sectors, such as the food, pharmaceutical and cosmetic industries, in addition to the potential for agriculture, biomedical, and several others. Among the metabolites of greatest commercial interest, and many obtained on an industrial scale, the wide range of enzymes, biofuels, organic acids, amino acids, vitamins, biopolymers, and many other classes of metabolites. This book is intended for Bioengineers, Biologist, Biochemist, Biotechnologists, microbiologist, food technologist, enzymologist, and related Professionals/ researchers. Explores recent advances in the valorization of agri-food waste Provides technical concepts on the production of various bio-products of commercial interest Discusses the main process conditions to overcome the difficulties of using waste as alternative raw materials Introduces technical-economic details on the advantages and disadvantages of exploring the waste recovery chain Explores the main technological advances in the recovery of residues in functional products

Microbial Bioprocessing of Agri-food Wastes - Bioactive Molecules (Hardcover): Gustavo Molina, Minaxi Sharma, Rachid Benhida,... Microbial Bioprocessing of Agri-food Wastes - Bioactive Molecules (Hardcover)
Gustavo Molina, Minaxi Sharma, Rachid Benhida, Vijai Kumar Gupta, Ramesh Chander Kuhad
R3,540 Discovery Miles 35 400 Ships in 12 - 17 working days

This book gives a comprehensive overview of recent advances in the valorization of agri-food waste and discusses the main process conditions needed to overcome the difficulties of using waste as alternative raw materials. It also discusses specific methodologies, opportunistic microbes for biomass valorization, the sustainable production of agri-food waste, as well as examines the assessment and management of bioactive molecules production from microbial-valorization of agri-food waste. The authors provide technical concepts on the production of various bio-products and their commercial interest including agri-food waste utilization in the microbial synthesis of proteins, the valorization of horticulture waste, the sustainable production of pectin via microbial fermentation, as well as other food and pharmacological applications. This book is intended for bioengineers, biologists, biochemists, biotechnologists, microbiologists, food technologists, enzymologists, and related professionals and researchers. Explores recent advances in the valorization of agri-food waste Provides technical concepts on the production of various bio-products of commercial interest Discusses the main process conditions to overcome the difficulties of using waste as alternative raw materials Introduces technical-economic details on the advantages and disadvantages of exploring the waste recovery chain Explores the main technological advances in the recovery of residues in functional products

Microbial Bioprocessing of Agri-food Wastes - Industrial Enzymes (Hardcover): Gustavo Molina, Zeba Usmani, Minaxi Sharma,... Microbial Bioprocessing of Agri-food Wastes - Industrial Enzymes (Hardcover)
Gustavo Molina, Zeba Usmani, Minaxi Sharma, Rachid Benhida, Ramesh Chander Kuhad, …
R3,536 Discovery Miles 35 360 Ships in 12 - 17 working days

Explores recent advances in the valorization of agri-food waste Provides technical concepts on the production of various bio-products of commercial interest Discusses the main process conditions to overcome the difficulties of using waste as alternative raw materials Introduces technical-economic details on the advantages and disadvantages of exploring the waste recovery chain Explores the main technological advances in the recovery of residues in functional products

Microbial Bioprocessing of Agri-food Wastes - Food Ingredients (Hardcover): Gustavo Molina, Minaxi Sharma, Vijai Kumar Gupta,... Microbial Bioprocessing of Agri-food Wastes - Food Ingredients (Hardcover)
Gustavo Molina, Minaxi Sharma, Vijai Kumar Gupta, Zeba Usmani, Rachid Benhida, …
R3,536 Discovery Miles 35 360 Ships in 12 - 17 working days

The goal of this book is to present recent advances in the production of food ingredients from agro-industrial residues, as well as to explore the technological advances made to make these ingredients a commercial reality for the food industry, such as peptides, food pigments, and organic acids, among others, thereby expanding the potential of bioprocesses in the valorization of agro-industrial residues for the production of molecules of industrial importance. This book is intended for bioengineers, biologists, biochemists, biotechnologists, microbiologists, food technologists, enzymologists, and related professionals/researchers. Explores recent advances in the valorization of agri-food waste into food ingredients; Provides technical concepts on the production of various food ingredients of commercial interest Explore nonel technological advanced strategies of extraction of bioactive compounds from food wastes Presents important classes of food ingredients obtained from alternative raw materials Sustainable food waste resources and management strategies Different pretraetment technologies and green extraction methodologies to support green environment in circular economy concept. Challenges in applications of re-derived bioactive compounds from food wastes in food formulations

Small Fruits in the Home Garden (Paperback): Robert E. Gough, Edward Barclay Poling Small Fruits in the Home Garden (Paperback)
Robert E. Gough, Edward Barclay Poling
R1,437 Discovery Miles 14 370 Ships in 12 - 17 working days

Why plant a vegetable garden with the same old tomato and cucumber plants that everyone else has? Small Fruits in the Home Garden is your home gardener?s guide to growing and harvesting small fruit for personal enjoyment. The contributors to this book provide the necessary information and helpful hints for you to grow many new varieties of small fruits, that have wonderful flavor but may not be suitable for commercial production, right at home. Now you can harvest the tastiest varieties at their peak flavor! In Small Fruits in the Home Garden, you?ll see how small fruits can enhance not only your diet, but also your garden and landscape. You?ll learn how strawberry plants, for example, make wonderful perennial borders along paths and walkways and how currants, gooseberrries, and blueberries serve as "edible" hedges that are especially lovely in the summer when their branches are laden with colorful fruit. Each chapter of this unique handbook provides detailed background and growing information on a particular fruit, with special attention to: climate soil pests water table preplant operations planting management pruning fertilizing liming wateringSee how growing and harvesting small fruit can provide you with something nutritious and beautiful that doesn?t demand too much free time. With Small Fruits in the Home Garden, you, too, can easily manage and enjoy small fruit growing.

Yampa Valley's Lost Egeria Park (Paperback): Rita Herold Yampa Valley's Lost Egeria Park (Paperback)
Rita Herold
R638 R528 Discovery Miles 5 280 Save R110 (17%) Ships in 10 - 15 working days
Ruffe - The spiky little freshwater ruffian (Hardcover): Mark Everard Ruffe - The spiky little freshwater ruffian (Hardcover)
Mark Everard
R904 Discovery Miles 9 040 Ships in 9 - 15 working days

This book is dedicated to the spiky little freshwater ruffian known better as the ruffe, pope, 'tommy ruffe' and other local names. A fascinating little fish, the ruffe is long overdue a book all of its own. Much loved by many anglers, ruffe can also be problematic when introduced beyond their native range. Scientist, author and broadcaster Dr Mark Everard details fascinating aspects of the biology, angling and wider contributions to society of the ruffe.

Early Creationist Journals (Hardcover): Ronald L. Numbers Early Creationist Journals (Hardcover)
Ronald L. Numbers
R5,153 Discovery Miles 51 530 Ships in 9 - 15 working days

Originally published in 1995, Early Creationist Journals is the ninth volume in the Creationism in Twentieth-Century America series, reissued in 2021. The book is a concise primary source collection containing a selection of journal articles from the early twentieth century outlining discoveries in biology, geology, physiology and archaeology and their relation to Christianity. The aim of the journals was to provide a platform for creationists of the 1920s to voice their theories on new science and how more recent discoveries fit within creationist beliefs, including flood theory. These interesting and unique journals will be of interest to academics working in the field of religion and natural history and provide a unique snapshot into the debates between evolutionists and Christianity during a period of great scientific change.

Cereal Crops - Genetic Resources and Breeding Techniques (Hardcover): Tariq Shah, Lixiao Nie, Marcelo Teixeira Filho, Rabia Amir Cereal Crops - Genetic Resources and Breeding Techniques (Hardcover)
Tariq Shah, Lixiao Nie, Marcelo Teixeira Filho, Rabia Amir
R3,261 Discovery Miles 32 610 Ships in 12 - 17 working days

Cereal Crops: Genetic Resources and Breeding Techniques provides the reader practical tools for understanding relationships and challenges of successful farming; improvements to genetic modifications; and environmentally sound methods of production of bulk and quality cereals including wheat, maize, rice, barley, and millets. It explores the trait mapping, cropping systems, genome engineering, and identification of specific germplasms needed for the more effective development of biotic and abiotic stress resistant cereals within the framework of ensuring future food supplies around the world. Features: Focuses on cropping systems, genetics and genome engineering for higher crop production at a global level. Features information on specific prebiotic formulas to ward off adverse effects of antibiotics. Covers mechanistic as well as practical approaches for enhancing crop production in a sustainable way. Includes further in depth analysis of various topics following each chapter. This is a vital resource for researchers, crop biologists, and students working with crop production and climate changes that have a significant impact on crop production, spanning basic to advanced level discussions of plant breeding, molecular genetics, and agronomy. Covering mechanistic and practical approaches for enhancing crop production in a sustainable way, this text is beneficial to intensive farmers and stakeholders in the field of crop production.

Roots of Power - The Political Ecology of Boundary Plants (Hardcover): Michael Sheridan Roots of Power - The Political Ecology of Boundary Plants (Hardcover)
Michael Sheridan
R3,838 Discovery Miles 38 380 Ships in 12 - 17 working days

Roots of Power tells five stories of plants, people, property, politics, peace, and protection in tropical societies. In Cameroon, French Polynesia, Papua New Guinea, St. Vincent, and Tanzania, dracaena and cordyline plants are simultaneously property rights institutions, markers of social organization, and expressions of life-force and vitality. In addition to their localized roles in forming landscapes and societies, these plants mark multiple boundaries and demonstrate deep historical connections across much of the planet's tropics. These plants' deep roots in society and culture have made them the routes through which postcolonial agrarian societies have negotiated both social and cultural continuity and change. This book is a multi-sited ethnographic political ecology of ethnobotanical institutions. It uses five parallel case studies to investigate the central phenomenon of "boundary plants" and establish the linkages among the case studies via both ancient and relatively recent demographic transformations such as the Bantu expansion across tropical Africa, the Austronesian expansion into the Pacific, and the colonial system of plantation slavery in the Black Atlantic. Each case study is a social-ecological system with distinctive characteristics stemming from the ways that power is organized by kinship and gender, social ranking, or racialized capitalism. This book contributes to the literature on property rights institutions and land management by arguing that tropical boundary plants' social entanglements and cultural legitimacy make them effective foundations for development policy. Formal recognition of these institutions could reduce contradiction, conflict, and ambiguity between resource managers and states in postcolonial societies and contribute to sustainable livelihoods and landscapes. This book will appeal to scholars and students of environmental anthropology, political ecology, ethnobotany, landscape studies, colonial history, and development studies, and readers will benefit from its demonstration of the comparative method.

Local Communities and the Mining Industry - Economic Potential and Social and Environmental Responsibilities (Hardcover):... Local Communities and the Mining Industry - Economic Potential and Social and Environmental Responsibilities (Hardcover)
Nicolas D. Brunet, Sheri Longboat
R3,824 Discovery Miles 38 240 Ships in 12 - 17 working days

This book explores the challenges and opportunities at the intersection of the global mining sector and local communities by focusing on a number of international cases drawn from various locations in Canada, the Philippines and Scandinavia. Mining's contribution to economic development varies greatly across countries. In some, it has been a major engine of development, but in others, disputes have erupted over land use, property rights, environmental damage, and revenue sharing. Corporate social responsibility programs are increasingly relied upon to manage company-community relations, yet conflicts persist in many settings, with significant costs for companies and communities. Exploring the many factors and drivers that characterise relationships among different actors within the sector, the volume contributes towards the development of practical wisdom, collective understanding, common sense, and prudence required for the mining sector and community partners to realize the economic potential and social and environmental responsibilities of non-renewable resource development. The book examines case studies from Canada, Scandinavia and the Philippines, three regions amongst the world's top countries of mining operations. Drawing on their extensive experience in these regions, the contributors explore distinctive mining sectors in the Global North and South, the variation surrounding different types of extractive industries, and at different scales, and the legal processes in place to protect local communities. Key themes include corporate social responsibility, impact assessment, foreign ownership, Indigenous Peoples, gender, local insurgency and mining disasters as well as climate change. The book identifies areas of future research and pathways to achieving stronger, respectful and mutually beneficial relationships at the nexus of global mineral extraction and local communities. This book will be of great interest to students and scholars of the extractive industries, natural resource management, sustainable business and corporate social responsibility, Indigenous studies, and sustainable planning and development.

Gudgeon - The angler's favourite tiddler (Hardcover): Mark Everard Gudgeon - The angler's favourite tiddler (Hardcover)
Mark Everard
R930 Discovery Miles 9 300 Ships in 9 - 15 working days

This book is a celebration of the humble gudgeon, the angler's favourite 'tiddler'. This much-loved little fish is long overdue a little book all of its own. Scientist, author and broadcaster Dr Mark Everard tells tales about the biology of the gudgeon, gudgeon fishing, and the diverse social quirks and values of this most popular of little fishes.

Silver Bream - Britain's most neglected freshwater fish (Hardcover): Mark Everard Silver Bream - Britain's most neglected freshwater fish (Hardcover)
Mark Everard
R935 Discovery Miles 9 350 Ships in 9 - 15 working days

This book is dedicated to the Silver Bream, a fish too long neglected by anglers, wildlife enthusiasts and science. In fact, this is the first book ever devoted to this freshwater fish. Scientist, author and broadcaster Dr Mark Everard introduces the biology of the silver bream, angling for this fish, and its diverse social quirks and values.

Thermal and Catalytic Processing in Petroleum Refining Operations (Hardcover): James G. Speight Thermal and Catalytic Processing in Petroleum Refining Operations (Hardcover)
James G. Speight
R4,760 Discovery Miles 47 600 Ships in 12 - 17 working days

Key Features: Describes feedstock evaluation and the effects of elemental, chemical and fractional composition. Details reactor types and bed types. Explores the process options and parameters involved. Assesses coke formation and additives. Considers next generation processes and developments.

Inequality and Nutritional Transition in Economic History - Spain in the 19th-21st Centuries (Hardcover): Francisco J.... Inequality and Nutritional Transition in Economic History - Spain in the 19th-21st Centuries (Hardcover)
Francisco J. Medina-Albaladejo, José Miguel Martínez-Carrión, Salvador Calatayud
R3,854 Discovery Miles 38 540 Ships in 12 - 17 working days

Food consumption and nutrition are historically among the most characteristic features of inequality in living standards driven by socioeconomic, gender, generational and geographical reasons. Nutrition directly impacts mortality, life expectancy, height and illness and thus becomes a good indicator of living standards and their evolution over time. However, one issue that remains unresolved is how to measure past diet inequalities with the available sources. This book evaluates nutritional inequalities in Spain from the nineteenth century to the present day. It explores the socioeconomic, gender, generational and geographical variations in food consumption and nutrition in Spain during this period. Deriving historical data on nutrition and diet has always been difficult due to issues with available sources. This book adopts a multi-dimensional approach and two complementary methodologies capable of presenting a more comprehensive picture: the first analyses diets based on primary sources, while the second examines the effect of nutritional inequalities on biological living standards, with special emphasis on average height. This combination allows for greater precision than previous studies on the impacts of food inequality. This book will be of significant interest to scholars from different academic branches, especially historians, economic historians and historians of science, economists, and also doctors, endocrinologists, paediatricians, anthropologists, nutritionists and expert in cooperation and development.

Agrarian Crisis in the United States - Pathways for Reform (Hardcover): Anthony Pahnke Agrarian Crisis in the United States - Pathways for Reform (Hardcover)
Anthony Pahnke
R3,834 Discovery Miles 38 340 Ships in 12 - 17 working days

From fragile, corporate-controlled supply chains breaking down, to millions of already hyper-exploited farmworkers risking their lives in the fields without basic personal protective equipment, the COVID-19 pandemic made it painfully obvious that US agriculture does not work. Agrarian Crisis in the United States: Pathways for Reform situates the many food system problems that the COVID-19 pandemic laid bare in historical context across four key policy areas, namely, in land, labor, markets, and the environment. In applying and building from the work of Jürgen Habermas, Agrarian Crisis in the United States highlights how deep-seated problems concerning systemic racism, economic inequality, and political legitimacy endanger the US food and farm system’s future. Besides analyzing crises, it presents solutions that would make agriculture in the United States more just and resilient through the implementation of certain communication and policy strategies. Its original argument, as well as a novel set of remedies, will appeal to scholars and activists with interests in agrarian studies, environmental policy, and social movements.

Waterjetting Technology (Hardcover): D a Summers Waterjetting Technology (Hardcover)
D a Summers
R13,664 Discovery Miles 136 640 Ships in 12 - 17 working days


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.

Railway Transportation Systems - Design, Construction and Operation (Hardcover, 2nd edition): Christos N. Pyrgidis Railway Transportation Systems - Design, Construction and Operation (Hardcover, 2nd edition)
Christos N. Pyrgidis
R4,553 Discovery Miles 45 530 Ships in 9 - 15 working days

Railway Transportation Systems covers the entire range of railway passenger systems, from conventional and high-speed intercity systems to suburban, regional, operating on steep gradients, and urban ones. It also examines in depth freight railway systems transporting conventional loads, heavy loads, and dangerous goods. For each system, the text provides a definition; an overview of its evolution and examples of good practice; the main design, construction, and operational characteristics; and the preconditions for its selection. Additionally, it offers a general overview of safety, interfaces with the environment, forces acting on the track, and techniques that govern the stability and guidance of railway vehicles. This new edition brings two new chapters. One concerns pre-feasibility studies of urban rail projects, and the other analyses the operation of railway systems under specific weather conditions and natural phenomena. New material examines dilemmas, trends and innovations in rail freight transportation; a new definition for high-speed rail; a number of case studies; and an update of cutting-edge technologies. It is ideal for graduate students, engineers, consultants, manufacturers, and transport company executives who need a reference and guide.

Assessing Forest Ecosystem Health in the Inland West - Papers from the American Forests Workshop November 14-20, 1993 Sun... Assessing Forest Ecosystem Health in the Inland West - Papers from the American Forests Workshop November 14-20, 1993 Sun Valley, Idaho (Hardcover)
David L Adams
R1,830 Discovery Miles 18 300 Ships in 12 - 17 working days

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.

The World Apple Market (Hardcover): Andrew D. O'Rourke The World Apple Market (Hardcover)
Andrew D. O'Rourke
R2,588 Discovery Miles 25 880 Ships in 12 - 17 working days

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.

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