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Graphite and Precursors
by Pierre DelhaèsHumans first used carbon as chars from firewood in ritual paintings and primitive metallurgical processes. Natural forms of carbon have been known since antiquity, yet the knowledge of the carbon element in chemistry and its technical applications on a larger scale are a relatively recent development. The industrial revolution in Europe two centuri
Graphite, Graphene, and Their Polymer Nanocomposites
by Rakesh K. Gupta Prithu MukhopadhyayGraphite, Graphene, and Their Polymer Nanocomposites presents a compilation of emerging research trends in graphene-based polymer nanocomposites (GPNC). International researchers from several disciplines share their expertise about graphene, its properties, and the behavior of graphene-based composites. Possibly the first published monograph of its
Graphs and Combinatorial Optimization: CTW2020 Proceedings (AIRO Springer Series #5)
by Claudio Gentile Giuseppe Stecca Paolo VenturaThis book highlights new and original contributions on Graph Theory and Combinatorial Optimization both from the theoretical point of view and from applications in all fields. The book chapters describe models and methods based on graphs, structural properties, discrete optimization, network optimization, mixed-integer programming, heuristics, meta-heuristics, math-heuristics, and exact methods as well as applications. The book collects selected contributions from the CTW2020 international conference (18th Cologne-Twente Workshop on Graphs and Combinatorial Optimization), held online on September 14-16, 2020. The conference was organized by IASI-CNR with the contribution of University of Roma Tre, University Roma Tor Vergata, and CNRS-LIX and with the support of AIRO. It is addressed to researchers, PhD students, and practitioners in the fields of Graph Theory, Discrete Mathematics, Combinatorial Optimization, and Operations Research.
Graphs in VLSI
by Eby G. Friedman Rassul BairamkulovNetworks are pervasive. Very large scale integrated (VLSI) systems are no different, consisting of dozens of interconnected subsystems, hundreds of modules, and many billions of transistors and wires. Graph theory is crucial for managing and analyzing these systems. In this book, VLSI system design is discussed from the perspective of graph theory. Starting from theoretical foundations, the authors uncover the link connecting pure mathematics with practical product development. This book not only provides a review of established graph theoretic practices, but also discusses the latest advancements in graph theory driving modern VLSI technologies, covering a wide range of design issues such as synchronization, power network models and analysis, and interconnect routing and synthesis.Provides a practical introduction to graph theory in the context of VLSI systems engineering;Reviews comprehensively graph theoretic methods and algorithms commonly used during VLSI product development process;Includes a review of novel graph theoretic methods and algorithms for VLSI system design.
Grappling with Gravity
by Robert W. PhillipsGrappling with Gravity explores the physiological changes that will occur in humans and the plants and animals that accompany humans as we move to new worlds, be it to colony in the emptiness of space or settlements on the Moon, Mars, or other moons or planets. This book focuses on the biomedical aspects, while not ignoring other life-changing influences of space living. For example, what happens to people physiologically in the microgravity of space, where weight and the direction "up" become meaningless? Adapting to microgravity represents the greatest environmental challenge that life will have encountered since our ancestors moved from the seas to solid Earth. Away from Earth the human body will begin almost immediately to adapt and change, to be able to function in these strange environments. As a person adapts in space he or she will become less fit to live on Earth.
Grasping in Robotics
by Giuseppe CarboneGrasping in Robotics contains original contributions in the field of grasping in robotics with a broad multidisciplinary approach. This gives the possibility of addressing all the major issues related to robotized grasping, including milestones in grasping through the centuries, mechanical design issues, control issues, modelling achievements and issues, formulations and software for simulation purposes, sensors and vision integration, applications in industrial field and non-conventional applications (including service robotics and agriculture). The contributors to this book are experts in their own diverse and wide ranging fields. This multidisciplinary approach can help make Grasping in Robotics of interest to a very wide audience. In particular, it can be a useful reference book for researchers, students and users in the wide field of grasping in robotics from many different disciplines including mechanical design, hardware design, control design, user interfaces, modelling, simulation, sensors and humanoid robotics. It could even be adopted as a reference textbook in specific PhD courses.
Grasping the Moment: Sensemaking in Response to Routine Incidents and Major Emergencies
by Christopher Baber Richard McMasterThe ways in which organizations make use of information available to them to make decisions and manage activity is an essential topic of investigation for human factors. When the information is uncertain, incomplete or subject to change, then decision making and activity management can become challenging. Under such circumstances, it has become commonplace to use the concept of sensemaking as the lens through which to view organizational behavior. This book offers a unique perspective on sensemaking through its consideration of the variety of ways in which Incident Response is managed by the Police. As an incident moves from the initial call handling to subsequent mobilization of response to first officer attending, a wide range of information is acquired, processed and shared, and the organization (and individuals who work within it) face challenges of making sense of the situation to which they are responding. Moving from routine incidents to large-scale emergencies, the authors explore how sensemaking is influenced and affected by the challenges of interoperability within and between organizations. In addition, the book develops a view of sensemaking which draws on the theory of distributed cognition, focusing in particular on the question of how the technology that is available to Police personnel can support (and sometimes thwart) their ability to make sense of the unfolding situation. The main argument in this book is that sensemaking is distributed cognition, and that cognitive processes involved in sensemaking are mediated through interactions with artifacts and other agents. Three perspectives of sensemaking as distributed cognition are presented: making sense with artifacts, making sense through artifacts, and making sense through collaboration.
Grasping the Water, Energy, and Food Security Nexus in the Local Context: Case study: Karawang Regency, Indonesia (IHE Delft PhD Thesis Series)
by Aries PurwantoThe existence of water, energy, and food (WEF) is critical for people to fulfil their basic needs, to achieve welfare, and to support the Sustainable Development Goals (SDGs). The WEF security topic is becoming widely discussed in developing and developed countries. Major components of WEF security i.e. availability, accessibility, and quality should be achieved integratedly to avoid unexpected impacts. The interconnectedness among endogenous and exogenous variables such as environmental, socio-economic, and political factors makes this issue immensely complex. The nexus approach attempts to integrate management and governance across sectors and scales to improve WEF security. This study aims to grasp WEF security in a local context and evaluate the implications of planned local interventions by developing a conceptual and quantitative analysis with local stakeholders. Karawang Regency in Indonesia is chosen as the case study. Several strategies for WEF-related sectors are formulated using location quotient (LQ) and competitive position (CP) methods. In addition, qualitative and quantitative system dynamics models are established by involving related stakeholders through group model building. Finally, a nexus-based framework for WEF security is developed to assist local policymakers in doing the evaluation and planning of WEF resources in the region.
Grass Productivity: An Introduction To Rational Grazing (Conservation Classics Ser.)
by Allan Savory Philosophical Library Pub. Andre VoisinGrass Productivity is a prodigiously documented textbook of scientific information concerning every aspect of management "where the cow and grass meet." Andre Voisin's "rational grazing" method maximizes productivity in both grass and cattle operations.
Grass Varieties in the United States
by U.S. Dept. of AgricultureThis user-friendly handbook is a working guide to the status of named and experimental grasses available for use in the United States. It provides physical descriptions and status profiles of grass varieties, including turf grass varieties. The handbook also contains maps and descriptions of Land Resources Regions and Plant Hardiness Zones that assist in the understanding of plant adaptation areas. Whenever available, the information in the handbook includes:
Grass, Soil, Hope: A Journey through Carbon Country
by Courtney WhiteWhat can we do about the seemingly intractable challenges confronting all of humanity today, including climate change, global hunger, water scarcity, environmental stress, and economic instability?The quick answers are: Build topsoil. Fix creeks. Eat meat from pasture-raised animals.Scientists maintain that a mere 2 percent increase in the carbon content of the planet&’s soils could offset 100 percent of all greenhouse gas emissions going into the atmosphere. But how could this be accomplished? What would it cost? Is it even possible?Yes, says author Courtney White, it is not only possible, but essential for the long-term health and sustainability of our environment and our economy.Right now, the only possibility of large-scale removal of greenhouse gases from the atmosphere is through plant photosynthesis and related land-based carbon sequestration activities. These include a range of already existing, low-tech, and proven practices: composting, no-till farming, climate-friendly livestock practices, conserving natural habitat, restoring degraded watersheds and rangelands, increasing biodiversity, and producing local food.In Grass, Soil, Hope, the author shows how all these practical strategies can be bundled together into an economic and ecological whole, with the aim of reducing atmospheric CO2 while producing substantial co-benefits for all living things. Soil is a huge natural sink for carbon dioxide. If we can draw increasing amounts carbon out of the atmosphere and store it safely in the soil then we can significantly address all the multiple challenges that now appear so intractable.
Grass-Fed Cattle: How to Produce and Market Natural Beef
by Julius RuechelSuccessfully raise grass-fed cattle and enjoy the benefits of great-tasting beef and a financially stable enterprise. In this comprehensive guide, Julius Ruechel covers every aspect of raising healthy and thriving grass-fed cattle, offering advice on herd selection, pasture management, medical care, necessary equipment, winter grazing, slaughtering procedures, and more. With tips on creating a viable business plan and identifying niche markets for your beef, Ruechel provides everything you need to know to develop a profitable and environmentally sustainable grass-fed cattle operation.
Grasses: Crops, Competitors, and Ornamentals
by Hansjoerg KraehmerCombines new findings on morphological aspects, the latest data on gene function in grasses, and the interaction of grasses with their habitats 45% of all arable land is covered by five grass crops: wheat, maize, rice, barley and sugar cane. This book demonstrates why crops and weeds are growing in characteristic environments today, and looks at how cropping practices may change in the future and how these changes will affect weed spectra. It explains the distribution of grasses and their role for mankind and summarizes our knowledge on grass genomes. Special emphasis is placed on the function of genes at defined developmental stages and in organs of grasses. The development of grasses is then described from the germination to fruit set with many unpublished examples. Grasses: Crops, Competitors and Ornamentals provides readers with a comparative description of selected grass organs (stem, root, leaf, inflorescence) and devotes several chapters to habitats of grasses and morphological characteristics that enable grasses to grow in special environments. In addition, some chapters deal with grasses as crops and weeds, and emphasis is placed on their adaptation to modern agriculture. Predicts how cropping practices may change in the future and how these changes will affect weed spectra Details grasses as crops and weeds, emphasizing their adaptation to modern agriculture Summarizes our knowledge on grass genomes Connects classical morphology with the latest tools in molecular biology as well as ecological aspects determining the wide distribution of grass species today Grasses: Crops, Competitors and Ornamentals will be of great interest to agricultural scientists who want to know more about crops and weeds, grassland specialists and breeders interested in special grass traits, and molecular biologists and ecologists who study the biology and habitat of grasses.
Grassland Biomes (Greenwood Guides to Biomes of the World)
by Susan L. WoodwardRetired from teaching biogeography and physical geography, Woodward describes and compares the major grassland regions of the world. After reviewing the nature of grassland generally, she details each biome in temperate and tropical climates in terms of its climatic peculiarities, most prevalent soil types, characteristic structure of the vegetation, and typical plants and animals. Maps, photographs, and line drawing complement the text. Annotation ©2008 Book News, Inc., Portland, OR (booknews.com)
Grasslands of the World: Diversity, Management and Conservation
by Victor R. Squires Limin Hua Jürgen Dengler Haiying FengThis book begins with a brief account of the extraordinary sequence of events that led to emergence of grasslands as major vegetation formations that now occupy some of the driest and hottest and the highest and coldest on earth as well as vast steppes and prairies in more temperate climes. It is the story of grasses successfully competing with forests and woodlands, aided and abetted by grazing herbivores and by humans and their use of fire as a tool. It is a story of adaptation to changing climates and the changing biophysical environments. A major focus of the book is the Palaearctic biogeographic realm that extends over some 45 million km² and thus more than 1/3 of the terrestrial ice-free surface on Earth. It comprises extensive grasslands of different types and origin, which can be subdivided into (1) natural grasslands with (1a) steppes (climatogenic in dry climates), (1b) arctic-alpine grasslands (climatogenic in cold climates) and (1c) azonal and extrazonal grasslands (pedogenic and topogenic) as well as (2) secondary grasslands created and sustained by human activities, such as livestock grazing, mowing or burning. Grasslands of the Palaearctic do not only form a major basis for the agriculture of the region and thus its food supply, but are also crucial for other ecosystem services and host a supra proportional part of the realm’s plant and animal diversity. To reflect that suitability of grasslands for biodiversity strongly depends on their state, we apply the term High Nature Value grassland to those natural grasslands that are not degraded (in good state) and those secondary grasslands that are not intensified (semi-natural). The situation in a variety of countries where grasslands are evolving under the influence of global climate change is also considered. Case studies are presented on Southern Africa, Eastern Africa, India, China, South America, North America and Australia. The concluding chapter examines a set of themes arising from the chapters that make up the bulk of this book. The following provide a focus: recent history of grassland biomes – brief recap of current thinking and recent trends with special reference to dry grasslands in the Palearctic regions; the current status of grasslands and germplasm resources (biodiversity) – an overview; management systems that ensure sustainability; how to recover degraded grasslands; socio-economic issues and considerations in grassland management; the impacts of environmental problems in grasslands such as future climate change and intensification and the problems/prospects facing pastoralists and other grassland-based livestock producers.
Grasslands on the Third Pole of the World: Structure, Function, Process, and Resilience of Social-Ecological Systems
by Shikui Dong Yong Zhang Shuai Li Hao Shen Yudan XuThis book comprehensively covers the topics of origin and distribution, evolution and types, regional and global importance, biodiversity conservation, plant-soil interfaces, ecosystem functions and services, social-ecological systems, climate change adaptations, land degradation and restoration, grazing management and pastoral production, and sustainable future of the grasslands on the Qinghai-Tibetan Plateau (QTP), which is a globally unique eco-region called the "Roof of the World" because of its high elevation, “Third Pole on Earth" because of its alpine environment and the "Water Tower in Asia" because of its headwater location. The grassland ecosystem covers above 60% of QTP, which is about 2.5 million km2, 1/4 of Chinese total territorial lands. The grassland ecosystem of the QTP (the Third Pole) is an important part of the palaearctic region, which features alpine cover and low oxygen. The Third Pole's grasslands not only provide important ecosystem functions such as biodiversity conservation, carbon storage, water resource regulation, climate control, and natural disaster mitigation at a global scale, but also provide critical ecosystem services such as pastoral production, cultural inheritance, and tourism and recreation at local and regional scales. The purposes of this monograph are to address the following questions: (1) What are the special features of the Third Pole's grasslands? (2) How have climate changes and human activities changed the structures and functions of the Third Pole's grasslands? (3) How can we cope with land degradation and climate change through innovative restoration and protective actions for Third Pole's grasslands? And (4) How can we promote the sustainable development of social-ecological systems of the Third Pole's grasslands through best management practices including grazing? The goal of this book is to attract the attention of international audiences to realize the importance of the Third Pole’s grasslands, and to call for the actions of global communities to effectively protect and sustainably use the Third Pole's grasslands. This book can be served as textbooks, teaching materials and documentaries for different audiences. The target audiences include students, teachers, researchers, policy makers, planners, government officials, and NGOs in agricultural, environmental and natural resources sectors.
Grassroots Artisans: Walter Stansell, Dan Sarazin, Henry Taylor
by Barry Lloyd PenhaleWalter Stansell of Straffordville, Dan Sarazin of Golden Lake, and Henry Taylor of Bancroft did what they had to do to preserve some of Canada's rural history. Stansell preserved the age of steam by building working models of machines used during the past century. Master canoe make Dan Sarazin (Chief White Eagle) has given many hours of his time to the preservation of old Native skills. Taylor still builds hand hewn log cabins, splits his own shingles with pioneer tools and carves reminders of early days in the bush. These three extraordinary men have done more than salvage some of Canada's past. Each in his own way actually made history at the Grass Roots level. Through extensive research involving oral history and the uncovering of a wide range of materials, i.e. vintage photographs, diaries, maps and sketchbooks, Barry Lloyd Penhale, journalist and broadcaster, has assembled an outstanding archival collection of Canadiana. In recalling colourful and courageous characters and communities of bygone eras, the publishers hope to partly fill the vacuum so long apparent in the preservation of our distinctive heritage.
Grate-Fired Energy Crop Conversion
by Maryori C. Díaz-RamírezThis book provides important insights into the combustion behavior of novel energy crops and agricultural fuels. It describes a new experimental approach to combustion evaluation, involving fundamental, bench-scale and commercial-scale studies. The studies presented were conducted on two representative biomass energy crops: a woody biomass poplar (Populus sp. or poplar) and an herbaceous biomass brassica (Brassica carinata or brassica). Moreover, agricultural residues of Manihot esculenta or cassava were also analyzed. The main accomplishments of this work are threefold. Firstly, it offers an extensive characterization of the above-mentioned fuels, their ash chemistry and their emissions of both solid particles and gaseous compounds that form at typical grate combustion conditions. Secondly, it presents an in-depth analysis of ash fractionation processes for major ash species. Thirdly, it describes the role of some critical and volatile key elements (K, Cl, S and P) in grate-red combustion systems and elucidates the main dierences in the ash chemistry during combustion of Si-rich and P-rich fuels. All in all, this work provides novel insights on the basic and fundamental mechanisms of biomass grate combustion with a special focus on ash transformation and highlights important issues and recommendations that need to be considered for an appropriate conversion of ash-rich fuels and for the development of future technology in the context of both small- and medium-scale biomass-based heat and power production.
Gratings, Mirrors and Slits: Beamline Design for Soft X-Ray Synchrotron Radiation Sources
by WB PeatmanIntended to provide scientists and engineers at synchrotron radiation facilities with a sound and convenient basis for designing beamlines for monochromatic soft x-ray radiation, this text will also be helpful to the users of synchrotron radiation who want to help ensure that beamlines being built are optimized for the experiments to be performed on them. The primary purpose of a beamline is to capture as much of the light of the source as possible and then to transfer the desired portion of that light as completely as possible to the experiment. With the development of dedicated, brilliant synchrotron radiation sources, the first half of the task has been greatly simplified. The beamline designer must contend with the second half of the problem -- conserving the brilliance of the source through an optical system which monochromatizes and focuses the radiation.
Gravitation, Inertia and Weightlessness
by V. I. FerronskyThis work discusses the problem of physical meaning of the three main dynamical properties of matter motion, namely gravitation, inertia and weightlessness. It considers that Newtonian gravitation and Galileo's inertia are the centrifugal effects of interaction energy of a self-gravitating n-body system and its potential field. A self-gravitating celestial body appears to be an excellent natural centrifuge that is rotated by the energy of interacting elementary particles. Weightlessness is a consequence of the centrifugal effect of elementary particles interaction that appears at differentiation of a body matter with respect to density. The author analyzes the problem of creation of mass particles and elements from the elementary particles of "dark matter", and discusses the basic physics of the Jacobi dynamics from the viewpoint of quantum gravitation. Chapters assert that the fundamentals of Jacobi dynamics completely correspond to conditions of natural centrifuges. The centrifuge is an excellent experimental model for the study of dynamical effects in solving the many body problem. In this book, readers may follow the demonstration of some of those studies and follow derivations, solutions and conclusions that provide a solid basis for further research in celestial mechanics, geophysics, astrophysics, geo- and planetary sciences.
Gravitational Biology I: Gravity Sensing and Graviorientation in Microorganisms and Plants (SpringerBriefs in Space Life Sciences)
by Markus Braun Maik Böhmer Donat-Peter Häder Ruth Hemmersbach Klaus PalmeThis book summarizes what is currently known about gravity sensing and response mechanisms in microorganisms, fungi, lower and higher plants; starting from the historical eye-opening experiments from the 19th century up to today’s extremely rapid advancing cellular, molecular and biotechnological research. All forms of life are constantly exposed to gravity and it can be assumed that almost all organisms have developed sensors and respond in one way or the other to the unidirectional acceleration force,this books shows us some of these different ways.The book is written for plant biologists and microbiologists as well as scientists interested in space and gravitational biology.
Gravity
by George GamowA distinguished physicist and teacher, George Gamow also possessed a special gift for making the intricacies of science accessible to a wide audience. In Gravity, he takes an enlightening look at three of the towering figures of science who unlocked many of the mysteries behind the laws of physics: Galileo, the first to take a close look at the process of free and restricted fall; Newton, originator of the concept of gravity as a universal force; and Einstein, who proposed that gravity is no more than the curvature of the four-dimensional space-time continuum.Graced with the author's own drawings, both technical and fanciful, this remarkably reader-friendly book focuses particularly on Newton, who developed the mathematical system known today as the differential and integral calculus. Readers averse to equations can skip the discussion of the elementary principles of calculus and still achieve a highly satisfactory grasp of a fascinating subject.Starting with a chapter on Galileo's pioneering work, this volume devotes six chapters to Newton's ideas and other subsequent developments and one chapter to Einstein, with a concluding chapter on post-Einsteinian speculations concerning the relationship between gravity and other physical phenomena, such as electromagnetic fields.
Gravity Buster: Journal #2 of a Cardboard Genius
by Frank AschIn Alex Archer's previous journal, Star Jumper, he revealed how his amazing cardboard spacecraft was tragically destroyed during a pillow fight with his little brother Jonathan. Alex knows that all geniuses encounter a setback now and then, yet this setback has only spurred him on to even greater achievements. Alex's new spaceship is twice the size of the old one and is equipped with many astonishing features, such as a telescope that can see around the universe and an electromagnetic shield stronger than Superman's cape! But will Zoe Breen want to be Alex's co-pilot when he leaves Earth and goes galaxy-hopping? And what about Alex's rotten little brother? Does Jonathan really want to drive Alex stark-raving mad? Or is he just looking for some big brother attention? Find out the answers to all these questions and more as the cardboard genius unleashes his brainchild - the Gravity Buster - and defies the laws of physics! But who will bring him back down to Earth?
Gravity Compensation in Robotics (Mechanisms and Machine Science #115)
by Vigen ArakelianThis book presents new research results in the field of gravity compensation in robotic systems. It explores topics such as gravity compensation of planar articulated robotic manipulators; the stiffness modeling of manipulators with gravity compensators; the multi-degree-of-freedom counter-balancing; the design of actuators with partial gravity compensation; a cable-driven robotic suit with gravity compensation for load carriage; various compensation systems for medical cobots and assistive devices; gravity balancing of parallel robots. The volume demonstrates that gravity compensation methods continue to develop, and new approaches and solutions are constantly being reported. These solutions apply both to new structural solutions and to their new applications. Cobots, exoskeletons and robotic suits, assistive devices, as well as biomechanical systems are among the most promising applications and most pressing areas for further innovation.
Gravity, Weight and Their Absence (SpringerBriefs in Physics)
by Vladimir PletserThe book introduces readers to the concept of weightlessness and microgravity, and presents several examples of microgravity research in fluid physics, the material sciences and human physiology. Further, it explains a range of basic physical concepts (inertia, reference frames, mass and weight, accelerations, gravitation and weightiness, free fall, trajectories, and platforms for microgravity research) in simple terms. The last section addresses the physiological effects of weightlessness. The book’s simple didactic approach makes it easy to read: equations are kept to a minimum, while examples and applications are presented in the appendices. Simple sketches and photos from actual space missions illustrate the main content. This book allows readers to understand the space environment that astronauts experience on board space stations, and to more closely follow on-going and future space missions in Earth orbit and to Mars.