0
Your cart

Your cart is empty

Browse All Departments
Price
  • R100 - R250 (84)
  • R250 - R500 (330)
  • R500+ (9,546)
  • -
Status
Format
Author / Contributor
Publisher

Books > Science & Mathematics > Physics > Applied physics & special topics

Electrostatic Effects in Soft Matter and Biophysics - Proceedings of the NATO Advanced Research Workshop on Electrostatic... Electrostatic Effects in Soft Matter and Biophysics - Proceedings of the NATO Advanced Research Workshop on Electrostatic Effects in Soft Matter and Biophysics Les Houches, France 1-13 October 2000 (Hardcover, 2001 ed.)
Christian Holm, Patrick Kekicheff, Rudolf Podgornik
R6,193 Discovery Miles 61 930 Ships in 10 - 15 working days

Soft Condensed Matter commonly deals with materials that are mechanically soft and, more importantly, particularly prone to thermal fluctuation effects. Charged soft matter systems are especially interesting: they can be manufactured artificially as polyelectrolytes to serve as superabsorbers in dypers, as flocculation and retention agents, as thickeners and gelling agents, and as oil-recovery process aids. They are also abundant in living organisms, mostly performing important structural (e.g. membranes) and functional (e.g. DNA) tasks. The book describes the many areas in soft matter and biophysics where electrostatic interactions play an important role. It offers in-depth coverage of recent theoretical approaches, advances in computer simulation, and novel experimental techniques. Readership: Advanced undergraduate level in physics, physical chemistry, and theoretical biochemistry.

Plasma Astrophysics - Kinetic Processes in Solar and Stellar Coronae (Hardcover, 2nd ed. 2002): Arnold O. Benz Plasma Astrophysics - Kinetic Processes in Solar and Stellar Coronae (Hardcover, 2nd ed. 2002)
Arnold O. Benz
R4,740 Discovery Miles 47 400 Ships in 12 - 17 working days

This textbook is intended as an introduction to the physics of solar and stellar coronae, emphasizing kinetic plasma processes. It is addressed to observational astronomers, graduate students, and advanced undergraduates without a ba- ground in plasma physics. Coronal physics is today a vast field with many different aims and goals. So- ing out the really important aspects of an observed phenomenon and using the physics best suited for the case is a formidable problem. There are already several excellent books, oriented toward the interests of astrophysicists, that deal with the magnetohydrodynamics of stellar atmospheres, radiation transport, and radiation theory. In kinetic processes, the different particle velocities play an important role. This is the case when particle collisions can be neglected, for example in very brief phenomena - such as one period of a high-frequency wave - or in effects produced by energetic particles with very long collision times. Some of the most persistent problems of solar physics, like coronal heating, shock waves, flare energy release, and particle acceleration, are likely to be at least partially related to such p- cesses. Study of the Sun is not regarded here as an end in itself, but as the source of information for more general stellar applications. Our understanding of stellar processes relies heavily, in turn, on our understanding of solar processes. Thus an introduction to what is happening in hot, dilute coronae necessarily starts with the plasma physics of our nearest star.

Clusters of Galaxies: Beyond the Thermal View (Hardcover, 2008 ed.): Jelle Kaastra Clusters of Galaxies: Beyond the Thermal View (Hardcover, 2008 ed.)
Jelle Kaastra
R5,955 Discovery Miles 59 550 Ships in 10 - 15 working days

This book presents a review about the physics of clusters of galaxies beyond the standard thermal view. The book first gives a general introduction to clusters of galaxies. It discusses the properties of the hot, virialised gas in these clusters. But the main focus is upon what is beyond this thermal gas: the surrounding warm-hot intergalactic medium, non-thermal emission components and the chemical enrichment of the clusters and their environments. What is the evolution of the hot gas in clusters and the surrounding cosmic web? How does it reach equilibrium? What is the role of magnetic fields and shocks? Has the WHIM been detetected? Are there non-thermal components in clusters? How does the metallicity evolve? These questions and many others are addressed from three different points of view: observations, theory of the physical processes and numerical simulations.

The book is written as a tutorial review. It is meant as an introduction for professionals and students wishing to work in this field. This means that no attempt is made to give a complete overview of all the work that has been done in this field, but to focus upon what needs to be known to be able to work in this field, and to explain to the reader basic processes, techniques and observations that experts often assume to be common knowledge.

Networks on Networks - The Physics of Geobiology and Geochemistry (Hardcover): Allen G Hunt, Stefano Manzoni Networks on Networks - The Physics of Geobiology and Geochemistry (Hardcover)
Allen G Hunt, Stefano Manzoni
R3,246 Discovery Miles 32 460 Ships in 10 - 15 working days

Order from chaos is simultaneously a mantra of physics and a reality in biology. Physicist Norman Packard suggested that life developed and thrives at the edge of chaos. Questions remain, however, as to how much practical knowledge of biology can be traced to existing physical principles, and how much physics has to change in order to address the complexity of biology. Phil Anderson, a physics Nobel laureate, contributed to popularizing a new notion of the end of "reductionism." In this view, it is necessary to abandon the quest of reducing complex behavior to known physical results, and to identify emergent behaviors and principles. In the present book, however, we have sought physical rules that can underlie the behavior of biota as well as the geochemistry of soil development. We looked for fundamental principles, such as the dominance of water flow paths with the least cumulative resistance, that could maintain their relevance across a wide range of spatial and temporal scales, together with the appropriate description of solute transport associated with such flow paths. Thus, ultimately, we address both nutrient and water transport limitations of processes from chemical weathering to vascular plant growth. The physical principles guiding our effort are established in different, but related concepts and fields of research, so that in fact our book applies reductionist techniques guided by analogy. The fact that fundamental traits extend across biotic and abiotic processes, i.e., the same fluid flow rate is relevant to both, but that distinctions in topology of the connected paths lead to dramatic differences in growth rates, helps unite the study of these nominally different disciplines of geochemistry and geobiology within the same framework. It has been our goal in writing this book to share the excitement of learning, and one of the most exciting portions to us has been the ability to bring some order to the question of the extent to which soils can facilitate plant growth, and what limitations on plant sizes, metabolism, occurrence, and correlations can be formulated thereby. While we bring order to the soil constraints on growth , we also generate some uncertainties in the scaling relationships of plant growth and metabolism. Although we have made an first attempt to incorporate edaphic constraints into allometric scaling, this is but an initial foray into the forest.

Discovering Life, Manufacturing Life - How the experimental method shaped life sciences (Hardcover, 2010 Ed.): Pierre V.... Discovering Life, Manufacturing Life - How the experimental method shaped life sciences (Hardcover, 2010 Ed.)
Pierre V. Vignais, Paulette M. Vignais
R4,662 Discovery Miles 46 620 Ships in 10 - 15 working days

Francis BACON, in his Novum Organum, Robert BOYLE, in his Skeptical Chemist and Rene DESCARTES, in his Discourse on Method; all of these men were witnesses to the th scientific revolution, which, in the 17 century, began to awaken the western world from a long sleep. In each of these works, the author emphasizes the role of the experimental method in exploring the laws of Nature, that is to say, the way in which an experiment is designed, implemented according to tried and tested te- niques, and used as a basis for drawing conclusions that are based only on results, with their margins of error, taking into account contemporary traditions and prejudices. Two centuries later, Claude BERNARD, in his Introduction to the Study of Experimental Medicine, made a passionate plea for the application of the experimental method when studying the functions of living beings. Twenty-first century Biology, which has been fertilized by highly sophisticated techniques inherited from Physics and Chemistry, blessed with a constantly increasing expertise in the manipulation of the genome, initiated into the mysteries of information techn- ogy, and enriched with the ever-growing fund of basic knowledge, at times appears to have forgotten its roots."

Modelling Water Flow in Unsaturated Porous Media - Accounting for Nonlinear Permeability and Material Heterogeneity (Hardcover,... Modelling Water Flow in Unsaturated Porous Media - Accounting for Nonlinear Permeability and Material Heterogeneity (Hardcover, 2012)
Adam Szymkiewicz
R3,927 R3,638 Discovery Miles 36 380 Save R289 (7%) Ships in 12 - 17 working days

The book focuses on two issues related to mathematical and numerical modelling of flow in unsaturated porous media. In the first part numerical solution of the governing equations is discussed, with particular emphasis on the spatial discretization of highly nonlinear permeability coefficient. The second part deals with large scale flow in heterogeneous porous media of binary structure. Upscaled models are developed and it is shown that the presence of material heterogeneities may give rise to additional non-equilibrium terms in the governing equations or to hysteresis in the averaged constitutive relationships.

The ARTEMIS Mission (Hardcover, 2014 ed.): Christopher Russell, Vassilis Angelopoulos The ARTEMIS Mission (Hardcover, 2014 ed.)
Christopher Russell, Vassilis Angelopoulos
R2,998 Discovery Miles 29 980 Ships in 10 - 15 working days

The ARTEMIS mission was initiated by skillfully moving the two outermost Earth-orbiting THEMIS spacecraft into lunar orbit to conduct unprecedented dual spacecraft observations of the lunar environment. ARTEMIS stands for Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun. Indeed, this volume discusses initial findings related to the Moon s magnetic and plasma environments and the electrical conductivity of the lunar interior. This work is aimed at researchers and graduate students in both heliophysics and planetary physics. Originally published in Space Science Reviews, Vol. 165/1-4, 2011."

Quantum Technologies and Military Strategy (Hardcover, 1st ed. 2021): Ajey Lele Quantum Technologies and Military Strategy (Hardcover, 1st ed. 2021)
Ajey Lele
R3,266 Discovery Miles 32 660 Ships in 12 - 17 working days

This book is about the strategic relevance of quantum technologies. It debates the military-specific aspects of this technology. Various chapters of this book cohere around two specific themes. The first theme discusses the global pattern of ongoing civilian and military research on quantum computers, quantum cryptography, quantum communications and quantum internet. The second theme explicitly identifies the relevance of these technologies in the military domain and the possible nature of quantum technology-based weapons. This thread further debates on quantum (arms) race at a global level in general, and in the context of the USA and China, in particular. The book argues that the defence utility of these technologies is increasingly becoming obvious and is likely to change the nature of warfare in the future.

Science with Minisat 01 (Hardcover, Reprinted from ASTROPHYSICS AND SPACE SCIENCE, 2001): Alvaro Gimenez Science with Minisat 01 (Hardcover, Reprinted from ASTROPHYSICS AND SPACE SCIENCE, 2001)
Alvaro Gimenez
R4,637 Discovery Miles 46 370 Ships in 10 - 15 working days

This book includes the proceedings of the Workshop held in Madrid, April 1999 to celebrate 2 years of successful operation of the first Spanish small scientific satellite in orbit. It contains discussions about the overall philosophy of small mission programs, the design of the satellite and its payload as well as the most relevant scientific outcome of the mission. Also included are additional contributions to the workshop, which are of importance to Minisat 01 in order to put its results within context. Finally, the future of small missions for space sciences is reviewed together with the main technological challenges for new studies. Out of the technological and scientific results of Minisat 01, the measurement of the EUV airglow spectrum and the flux of some stars in the same range can be highlighted together with the dismiss of the massive neutrino decay theory. The high-energy experiment analyzed the characterization of the radiation environment in LEO and the behaviour of different kind of detectors, as well as the use of coded masks for imaging and the measurement of some specific sources. The book's level is intended for specialists in EUV and Hard X-Ray astrophysicists as well as for engineers and technicians involved in space science experiments and missions.

Paper-Based Medical Diagnostic Devices - As a Part of Bioanalysis-Advanced Materials, Methods, and Devices (Hardcover, 1st ed.... Paper-Based Medical Diagnostic Devices - As a Part of Bioanalysis-Advanced Materials, Methods, and Devices (Hardcover, 1st ed. 2021)
Jeong-Hoon Lee
R1,857 Discovery Miles 18 570 Ships in 10 - 15 working days

This book disseminates information on paper-based diagnostics devices and describes novel paper materials, fabrication techniques, and Basic Paper-based microfluidics/electronics theory. The section on sample preparation, paper-based electronics/sensors for developing paper-based point-of-care (POC) systems also contains detailed descriptions. In the application sections this book covers sensing technique for DNA/RNA, bacteria/virus and integration of lateral flow assay. The book provides deep understanding and knowledge of paper-based diagnostic device development in terms of concept, materials, fabrication and applications.

Principles Of Three-dimensional Imaging In Confocal Microscopes (Hardcover): Min Gu Principles Of Three-dimensional Imaging In Confocal Microscopes (Hardcover)
Min Gu
R2,458 Discovery Miles 24 580 Ships in 12 - 17 working days

This book discusses the various principles in confocal scanning microscopy which has become a useful tool in many practical fields including biological studies and industrial inspection. The methodology presented in this book is unique and is based on the concept of the three-dimensional transfer functions which have been developed by the author and his colleagues over the last five years. With the 3-D transfer functions, resolving power in 3-D confocal imaging can be defined in a unified way, different optical arrangements can be compared with an insight into their inter-relationship, and images of thick objects can be modeled in terms of the Fourier transform which makes the analysis easy. The aim of this book is to provide a systematic introduction to the concept of the 3-D transfer functions in various confocal microscopes, to describe the methods for the derivation of different 3-D transfer functions, and to explain the principles of 3-D confocal imaging in terms of these functions.

Muscle Biophysics - From Molecules to Cells (Hardcover, 2010 ed.): Rassier Dilson J. E. Muscle Biophysics - From Molecules to Cells (Hardcover, 2010 ed.)
Rassier Dilson J. E.
R5,921 Discovery Miles 59 210 Ships in 10 - 15 working days

Muscle contraction has been the focus of scientific investigation for more than two centuries, and major discoveries have changed the field over the years. Early in the twentieth century, Fenn (1924, 1923) showed that the total energy liberated during a contraction (heat + work) was increased when the muscle was allowed to shorten and perform work. The result implied that chemical reactions during contractions were load-dependent. The observation underlying the "Fenn effect" was taken to a greater extent when Hill (1938) published a pivotal study showing in details the relation between heat production and the amount of muscle shortening, providing investigators with the force-velocity relation for skeletal muscles. Subsequently, two papers paved the way for the current paradigm in the field of muscle contraction. Huxley and Niedergerke (1954), and Huxley and Hanson (1954) showed that the width of the A-bands did not change during muscle stretch or activation. Contraction, previously believed to be caused by shortening of muscle filaments, was associated with sliding of the thick and thin filaments. These studies were followed by the classic paper by Huxley (1957), in which he conceptualized for the first time the cross-bridge theory; filament sliding was driven by the cyclical interactions of myosin heads (cross-bridges) with actin. The original cross-bridge theory has been revised over the years but the basic features have remained mostly intact. It now influences studies performed with molecular motors responsible for tasks as diverse as muscle contraction, cell division and vesicle transport.

Highlights of Spanish Astrophysics III - Proceedings of the fifth Scientific Meeting of the Spanish Astronomical Society (SEA),... Highlights of Spanish Astrophysics III - Proceedings of the fifth Scientific Meeting of the Spanish Astronomical Society (SEA), held in Toledo, Spain, September 9-13, 2002 (Hardcover, 2003 ed.)
Jesus Gallego, Jaime Zamorano, Nicolas Cardiel
R6,203 Discovery Miles 62 030 Ships in 10 - 15 working days

This volume contains the Proceedings of the Fifth Scientific Meeting of the Spanish Astronomical Society (Sociedad Espanola de Astronomfa, SEA). The meeting was held at the Universidad de Castilla La Mancha in Toledo, from September 9 to 13, 2002. The event brought together 219 participants who pre sented their latest results in many different subjects. In comparison with the previous scientific meetings of the Society, the numbers of oral talks and poster contributions (122 and 64, respectively) are rapidly increasing, confirming that the SEA conferences are becoming a point of reference to assess the interests and achievements of astrophysical research in Spain. During the meeting, the SEA made public the granting of the Prize to the Best Spanish Ph. D. Thesis in As tronomy and Astrophysics for the period 2000-2001 ex aequo to Dr. A. Zurita and Dr. E. Villaver. This is the second time that the SEA is awarding this prize, which aim is to encourage young spanish astrophysicists to pursue a high level scientific career. The Society is indebted to the Universidad de Castilla La Mancha, and, in particular, to the San Pedro Martir staff, for its hospitality. It is also indebted to the Local Organizing Committee for its dedication and the good atmosphere that prevailed at any moment, and to the Scientific Organizing Committee for its excel lent work."

Biophotonics and Coherent Systems in Biology (Hardcover, 2007 ed.): L.V. Beloussov, V. L. Voeikov, V. S. Martynyuk Biophotonics and Coherent Systems in Biology (Hardcover, 2007 ed.)
L.V. Beloussov, V. L. Voeikov, V. S. Martynyuk
R4,740 Discovery Miles 47 400 Ships in 12 - 17 working days

It is now well established that all living systems emit a weak but permanent photon flux in the visible and ultraviolet range. This biophoton emission is correlated with many, if not all, biological and physiological functions. There are indications of a hitherto-overlooked information channel within the living system. Biophotons may trigger chemical reactivity in cells, growth control, differentiation and intercellular communication, i.e. biological rhythms. Biophotonics is becoming one of the most fashionable fields in modern science and biotechnology. Biophotonics and Coherent Systems in Biology is an account of the original papers presented by the participants of the 3rd Alexander Gurwitsch Conference on the Biophotonics and Coherent Systems in Biology, Biophysics and Biotechnology which took place in Tauric University (Crimea, Ukraine) September 27-October 1, 2004.

The IGM/Galaxy Connection - The Distribution of Baryons at z=0 (Hardcover, 2003 ed.): Jessica L. Rosenberg, Mary E Putman The IGM/Galaxy Connection - The Distribution of Baryons at z=0 (Hardcover, 2003 ed.)
Jessica L. Rosenberg, Mary E Putman
R3,091 Discovery Miles 30 910 Ships in 10 - 15 working days

This volume contains the proceedings of the meeting entitled, "The IGM/Galaxy Connection: The Distribution of Baryons at z = 0. " The meeting was held August 8 -10 at the National Center for Atmospheric Research (NCAR) located in Boulder, Colorado on the foothills of the Rocky Mountains (see conference photo). We organized this meeting because we felt it was time to address the link between galaxies and the intergalactic medium at low redshift. In this vein, we posed several questions to the conference participants: Where are the baryons in the local universe and in what phase do they reside? What signatures of galaxy evolution have been imprinted on the IGM? What percentage of intergalactic gas is left from the galaxy formation process? What does the distribution of baryons at z = 0 tell us about the early universe? The conference was an overwhelming success with lots of friendly interaction and discussion among the participants. At lunch we were treated to splendid views from the NCAR terrace and discussions rang ing from the importance of the LSR, GSR, and LGSR velocity frames to how long the desserts would last with 90 astronomers and the hot Boul der sun. From an inventory of the baryons, to the associations between galaxies and Lya absorbers, to the mechanisms by which galaxies obtain and lose gas, the conference covered many topics. The results of these endeavors are contained in these pages and eloquently summarized by Chris Impey."

The Relativistic Boltzmann Equation: Theory and Applications (Hardcover, 2002 ed.): Carlo Cercignani, Gilberto M. Kremer The Relativistic Boltzmann Equation: Theory and Applications (Hardcover, 2002 ed.)
Carlo Cercignani, Gilberto M. Kremer
R5,458 Discovery Miles 54 580 Ships in 12 - 17 working days

The aim of this book is to present the theory and applications of the relativistic Boltzmann equation in a self-contained manner, even for those readers who have no familiarity with special and general relativity. Though an attempt is made to present the basic concepts in a complete fashion, the style of presentation is chosen to be appealing to readers who want to understand how kinetic theory is used for explicit calculations. The book will be helpful not only as a textbook for an advanced course on relativistic kinetic theory but also as a reference for physicists, astrophysicists and applied mathematicians who are interested in the theory and applications of the relativistic Boltzmann equation.

Piezo-Active Composites - Orientation Effects and Anisotropy Factors (Hardcover, 2014 ed.): Vitaly Yu. Topolov, Paolo Bisegna,... Piezo-Active Composites - Orientation Effects and Anisotropy Factors (Hardcover, 2014 ed.)
Vitaly Yu. Topolov, Paolo Bisegna, Christopher R. Bowen
R3,553 Discovery Miles 35 530 Ships in 12 - 17 working days

The book is devoted to the problem of microgeometry properties and anisotropy relations in modern piezo-active composites. These materials are characterized by various electromechanical properties and remarkable abilities to convert mechanical energy into electric energy and vice versa. Advantages of the performance of the composites are discussed in the context of the orientation effects, first studied by the authors for main connectivity patterns and with due regard to a large anisotropy of effective piezoelectric coefficients and electromechanical coupling factors. The novelty of the book consists in the systematization results of orientation effects, the anisotropy of piezoelectric properties and their role in forming considerable hydrostatic piezoelectric coefficients, electromechanical coupling factors and other parameters in the composites based on either ferroelectric ceramic or relaxor-ferroelectric single crystals.

From Complex to Simple - Interdisciplinary Stochastic Models (Hardcover): Dan A. Mazilu, Irina Mazilu, H. Thomas Williams From Complex to Simple - Interdisciplinary Stochastic Models (Hardcover)
Dan A. Mazilu, Irina Mazilu, H. Thomas Williams
R1,699 Discovery Miles 16 990 Ships in 10 - 15 working days

This book presents simple interdisciplinary stochastic models meant as a gentle introduction to the field of non-equilibrium statistical physics. It focuses on the analysis of two-state models with cooperative effects, which are versatile enough to be applied to many physical and social systems. The book also explores a variety of mathematical techniques to solve the master equations that govern these models: matrix theory, empty-interval methods, mean field theory, a quantum approach, and mapping onto classical Ising models. The models discussed are at the confluence of nanophysics, biology, mathematics, and the social sciences and provide a pedagogical path toward understanding the complex dynamics of particle self-assembly with the tools of statistical physics.

Macroscopic Models for Vehicular Flows and Crowd Dynamics: Theory and Applications - Classical and Non-Classical Advanced... Macroscopic Models for Vehicular Flows and Crowd Dynamics: Theory and Applications - Classical and Non-Classical Advanced Mathematics for Real Life Applications (Hardcover, 2013 ed.)
Massimiliano Daniele Rosini
R4,509 R3,633 Discovery Miles 36 330 Save R876 (19%) Ships in 12 - 17 working days

This monograph presents a systematic treatment of the theory for hyperbolic conservation laws and their applications to vehicular traffics and crowd dynamics. In the first part of the book, the author presents very basic considerations and gradually introduces the mathematical tools necessary to describe and understand the mathematical models developed in the following parts focusing on vehicular and pedestrian traffic. The book is a self-contained valuable resource for advanced courses in mathematical modeling, physics and civil engineering. A number of examples and figures facilitate a better understanding of the underlying concepts and motivations for the students. Important new techniques are presented, in particular the wave front tracking algorithm, the operator splitting approach, the non-classical theory of conservation laws and the constrained problems. This book is the first to present a comprehensive account of these fundamental new mathematical advances.

Hydration Structures of Proteins - Atomic Details (Hardcover, 1st ed. 2021): Masayoshi Nakasako Hydration Structures of Proteins - Atomic Details (Hardcover, 1st ed. 2021)
Masayoshi Nakasako
R4,332 Discovery Miles 43 320 Ships in 12 - 17 working days

This book describes hydration structures of proteins by combining experimental results with theoretical considerations. It is designed to introduce graduate students and researchers to microscopic views of the interactions between water and biological macromolecules and to provide them with an overview of the field. Topics on protein hydration from the past 25 years are examined, most of which involve crystallography, fluorescence measurements, and molecular dynamics simulations. In X-ray crystallography and molecular dynamics simulations, recent advances have accelerated the study of hydration structures over the entire surface of proteins. Experimentally, crystal structure analysis at cryogenic temperatures is advantageous in terms of visualizing the positions of hydration water molecules on the surfaces of proteins in their frozen-hydrated crystals. A set of massive data regarding hydration sites on protein surfaces provides an appropriate basis, enabling us to identify statistically significant trends in geometrical characteristics. Trajectories obtained from molecular dynamics simulations illustrate the motion of water molecules in the vicinity of protein surfaces at sufficiently high spatial and temporal resolution to study the influences of hydration on protein motion. Together with the results and implications of these studies, the physical principles of the measurement and simulation of protein hydration are briefly summarized at an undergraduate level. Further, the author presents recent results from statistical approaches to characterizing hydrogen-bond geometry in local hydration structures of proteins. The book equips readers to better understand the structures and modes of interaction at the interface between water and proteins. Referred to as "hydration structures", they are the subject of much discussion, as they may help to answer the question of why water is indispensable for life at the molecular and atomic level.

Microwave Based Weed Control and Soil Treatment (Hardcover): Graham Brodie, Dorin Gupta, Jamal Khan, Sally Foletta, Natalie... Microwave Based Weed Control and Soil Treatment (Hardcover)
Graham Brodie, Dorin Gupta, Jamal Khan, Sally Foletta, Natalie Bootes
R3,250 Discovery Miles 32 500 Ships in 12 - 17 working days

Herbicide resistance has become an important constraint on modern agricultural practices. An alarming increase in weed biotypes that are resistant to herbicides has also been reported. Opportunity exists for a novel weed management technology, which is also compatible with no-till agricultural practices. Microwave heating can kill both emerged weed plants and weed seeds in the soil. When the intensity of the microwave fields is moderate, plants, which have already emerged, are susceptible to microwave treatment. If the microwave field is intense enough, very rapid volumetric heating and some thermal runaway in the plant structures cause micro-steam explosions in the plant cells, which rupture the plant structures, leading to death. Soil treatment requires significantly more energy; however, there are secondary benefits for crops growing in microwave treated soil. These include: significant reduction of the dormant weed seed bank; significant reduction of nematode populations; significant reduction of fungal populations; better availability of indigenous nitrogen for the plants; more rapid humification; and significant increases in crop growth and yield. Microwave weed management and soil treatment is not restricted by weather conditions; therefore, the technology may offer some timeliness and environmental benefits, which are yet to be quantified in a cropping system.

Physics of Collisional Plasmas - Introduction to High-Frequency Discharges (Hardcover, 2012 ed.): Michel Moisan, Jacques... Physics of Collisional Plasmas - Introduction to High-Frequency Discharges (Hardcover, 2012 ed.)
Michel Moisan, Jacques Pelletier
R1,692 Discovery Miles 16 920 Ships in 10 - 15 working days

This text is an introduction to the physics of collisional plasmas, as opposed to plasmas in space. It is intended for graduate students in physics and engineering . The first chapter introduces with progressively increasing detail, the fundamental concepts of plasma physic. The motion of individual charged particles in various configurations of electric and magnetic fields is detailed in the second chapter while the third chapter considers the collective motion of the plasma particles described according to a hydrodynamic model. The fourth chapter is most original in that it introduces a general approach to energy balance, valid for all types of discharges comprising direct current(DC) and high frequency (HF) discharges, including an applied static magnetic field. The basic concepts required in this fourth chapter have been progressively introduced in the previous chapters.

The text is enriched with approx. 100 figures, and alphabetical index and 45 fully resolved problems. Mathematical and physical appendices provide complementary information or allow to go deeper in a given subject.

Carl Stormer - Auroral Pioneer (Hardcover, 2013 ed.): Alv Egeland, William J Burke Carl Stormer - Auroral Pioneer (Hardcover, 2013 ed.)
Alv Egeland, William J Burke
R4,668 Discovery Miles 46 680 Ships in 12 - 17 working days

This biography summarizes the seminal contributions to auroral and space science of Carl Stormer (1874 - 1957). He was the first to develop precise photographic methods to calculate heights and morphologies of diverse auroral forms during four solar cycles. Stormer independently devised numerical techniques to determine the trajectories of high-energy charged particles allowed and forbidden in the Earth's magnetic field. His theoretical analyses explained cosmic ray access to the upper atmosphere, 20 years before they were identified by other scientists. Stormer's crowning achievement, "The Polar Aurora," published when he was 81 years old, stands to this day as a regularly cited guide in graduate-level courses on space physics. The authors present the life of this prodigious scientist in relation to the cultural life of early 20th century in Norway and to the development of the space sciences in the post-Sputnik era.

Biological Systems under Extreme Conditions - Structure and Function (Hardcover, 2002 ed.): Y. Taniguchi, H.E. Stanley, H.... Biological Systems under Extreme Conditions - Structure and Function (Hardcover, 2002 ed.)
Y. Taniguchi, H.E. Stanley, H. Ludwig
R3,064 Discovery Miles 30 640 Ships in 10 - 15 working days

Biological systems are regulated by the thermodynamic parameters of pressure and temperature. With the help of new spectroscopic methods it is now possible to study the structure and function of such systems under extreme pressures and temperatures. This book described the resulting theory and applications of these pressure and temperature effects. The subjects covered include the use of high pressure in food processing and even the theory of the origin and evolution of life. Readers exploring the world of biology in extreme environments will find this book particularly useful.

Biological Effects of Electromagnetic Fields - Mechanisms, Modeling, Biological Effects, Therapeutic Effects, International... Biological Effects of Electromagnetic Fields - Mechanisms, Modeling, Biological Effects, Therapeutic Effects, International Standards, Exposure Criteria (Hardcover, 2003 ed.)
Peter Stavroulakis
R6,373 Discovery Miles 63 730 Ships in 10 - 15 working days

This book covers the subject of Biological Effects of EMF in its entirety. First it covers both high and low frequency effects, explains thoroughly the mechanisms of interaction between EMF and biological systems and provides the necessary mathematical modeling for EMF absorption. Experimental verification of the theoretical results is given when at all possible and it is expected to open new areas of research as well as provide the material for university course creation. Topics as Ion Cyclotron Resonance in biological systems, thermal and dissipation effects of mobile system radiation, effects of transmission lines and railway radiation, effects on the reproductive capacity of specific insects, on the immune systems on embryos and fetuses, blood parameters and behavior of rats, as well as health risk assessment and the therapeutic effects of EMF are thoroughly covered.

Free Delivery
Pinterest Twitter Facebook Google+
You may like...
Quantum Particle Illusion, The…
Gerald E. Marsh Hardcover R1,887 Discovery Miles 18 870
A Coat Of Many Colours - Short Stories
Fred Khumalo Paperback R303 Discovery Miles 3 030
Black America, Body Beautiful - How the…
Eric J. Bailey Hardcover R2,326 Discovery Miles 23 260
Smart Talk - Public Relations Essentials…
Melissa Vela-Williamson Apr Cdp Hardcover R765 R678 Discovery Miles 6 780
Beauty - A Black Perspective
Nakedi Ribane Paperback R195 R180 Discovery Miles 1 800
Inspire Colouring Book - Luke & John
Paperback  (1)
R478 Discovery Miles 4 780
What Makes Them Great? - 50 Ways To…
Douglas Kruger Paperback R250 R153 Discovery Miles 1 530
TaReKiTa
Reena Esmail Sheet music R120 Discovery Miles 1 200
Poker Face - The Rise and Rise of Lady…
Maureen Callahan Paperback  (1)
R521 Discovery Miles 5 210
Dik Dun Thick Thin - Stories
Nataniel Nataniel Paperback R315 R295 Discovery Miles 2 950

 

Partners