![]() |
Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
|
Your cart is empty |
||
|
Books > Science & Mathematics > Chemistry > Physical chemistry > General
Experimental advances in helium atom scattering spectroscopy over the last forty years have allowed the measurement of surface phonon dispersion curves of more than 200 different crystal surfaces and overlayers of insulators, semiconductors and metals. The first part of the book presents, at a tutorial level, the fundamental concepts and methods in surface lattice dynamics, and the theory of atom-surface interaction and inelastic scattering in their various approximations, up to the recent electron-phonon theory of helium atom scattering from conducting surfaces. The second part of the book, after introducing the experimentalist to He-atom spectrometers and the rich phenomenology of helium atom scattering from corrugated surfaces, illustrates the most significant experimental results on the surface phonon dispersion curves of various classes of insulators, semiconductors, metals, layered crystals, topological insulators, complex surfaces, adsorbates, ultra-thin films and clusters. The great potential of helium atom scattering for the study of atomic scale diffusion, THz surface collective excitations, including acoustic surface plasmons, and the future prospects of helium atom scattering are presented in the concluding chapters. The book will be valuable reading for all researchers and graduate students interested in dynamical processes at surfaces.
Discusses advances in the computation of phase diagrams Offers expanded treatment of eutectic solidification with practical examples and new coverage of ternary phase diagrams, covering the concepts of orthoequilibrium and paraequilibrium Updates discussion of bainite transformation to reflect current opinions Includes new case studies covering grain refiners in aluminium alloys, additive manufacturing, thin film growth, important aerospace Al-Li alloys, and quenched and partitioned steels, and metastable austenitic stainless steels. Each chapter now begins with a list of key concepts, includes simpler illustrative exercises with relevance to real practical applications, and references to scientific publications updated to reflect experimental and computational advances in metallurgy
Knowledge of the basic interactions that take place between geological materials and different substances is the first step in understanding the effects of adsorption and other interfacial processes on the quality of rocks and soils, and on driving these processes towards a beneficial or neutral result. Interfacial Chemistry of Rocks and Soils examines the different processes at solid and liquid interfaces of soil and rock, presenting a complete analysis that emphasizes the importance of chemical species on these interactions. This Second Edition features novel results in the field and expanded coverage of the kinetics of interfacial processes. New content includes models of heterogeneous isotope exchange, sorption isotherms for heterovalent cation exchange, as well as sorption of anions by chemically modified clays. Summarizing the results and knowledge of the authors' research in this field over several decades, this volume: Explores the individual components of the studied systems: the solid, the solution, and the interface Discusses the characteristics and thermodynamics of the interface Profiles the most important analytical methods in the study of interfacial processes Demonstrates transformations initiated by interfacial processes Outlines avenues of treatment that may solve geological, soil science, and environmental problems Drawn chiefly from the authors' years of research at the Imre Lajos Isotope Laboratory in the Department of Physical Chemistry at the University of Debrecen in Hungary, this book discusses chemical reactions on the surfaces/interfaces of soils and rocks; examines the role of these processes in environmental, colloid and geochemistry; and explores the effects on agricultural, environmental and industrial applications.
This is a self-contained advanced review volume. It provides a step by step derivation of the consistent theoretical picture of hybrid modeling methods and a thorough analysis of the concepts and current practical methods of hybrid modeling based on this theory.The book presents its material sequentially, paying attention both to the physical soundness of the approximations used and to the mathematical rigor necessary for the practical development of the robust modeling code. Historical remarks are given when it is necessary to put the current work in a more general context and to establish a relationship with other areas of computational chemistry.
Fifty years ago, a new approach to reaction kinetics began to emerge: one based on mathematical models of reaction kinetics, or formal reaction kinetics. Since then, there has been a rapid and accelerated development in both deterministic and stochastic kinetics, primarily because mathematicians studying differential equations and algebraic geometry have taken an interest in the nonlinear differential equations of kinetics, which are relatively simple, yet capable of depicting complex behavior such as oscillation, chaos, and pattern formation. The development of stochastic models was triggered by the fact that novel methods made it possible to measure molecules individually. Now it is high time to make the results of the last half-century available to a larger audience: students of chemistry, chemical engineering and biochemistry, not to mention applied mathematics. Based on recent papers, this book presents the most important concepts and results, together with a wealth of solved exercises. The book is accompanied by the authors' Mathematica package, ReactionKinetics, which helps both students and scholars in their everyday work, and which can be downloaded from http://extras.springer.com/ and also from the authors' websites. Further, the large set of unsolved problems provided may serve as a springboard for individual research.
Nanoscale electrochemistry has revolutionized electrochemical research and technologies and has made broad impacts in other fields, including nanotechnology and nanoscience, biology, and materials chemistry. Nanoelectrochemistry examines well-established concepts and principles and provides an updated overview of the field and its applications. This book covers three integral aspects of nanoelectrochemistry. The first two chapters contain theoretical background, which is essential for everyone working in the field-specifically, theories of electron transfer, transport, and double-layer processes at nanoscale electrochemical interfaces. The next chapters are dedicated to the electrochemical studies of nanomaterials and nanosystems, as well as the development and applications of nanoelectrochemical techniques. Each chapter is self-contained and can be read independently to provide readers with a compact, up-to-date critical review of the subfield of interest. At the same time, the presented collection of chapters serves as a serious introduction to nanoelectrochemistry for graduate students or scientists who wish to enter this emerging field. The applications discussed range from studies of biological systems to nanoparticles and from electrocatalysis to molecular electronics, nanopores, and membranes. The book demonstrates how electrochemistry has contributed to the advancement of nanotechnology and nanoscience. It also explores how electrochemistry has transformed itself by leading to the discovery of new phenomena, enabling unprecedented electrochemical measurements and creating novel electrochemical systems.
Wetting and Spreading Dynamics explains how surface forces acting at the three-phase contact line determine equilibrium, hysteresis contact angles, and other equilibrium and kinetics features of liquids when in contact with solids or with other immiscible liquids. It examines the interaction of surface forces, capillary forces, and properties of the transition zone between the bulk liquid and solid substrate. Significantly revised and updated, the Second Edition features new chapters that cover spreading of non-Newtonian liquids over porous substrates, hysteresis of contact angles on smooth homogeneous substrates, equilibrium and hysteresis contact angles on deformable substrates, and kinetics of simultaneous spreading and evaporation. Drawing together theory and experimental data while presenting over 150 figures to illustrate the concepts, Wetting and Spreading Dynamics, Second Edition is a valuable resource written for both newcomers and experienced researchers.
Electrolyte solutions play a key role in traditional chemical industry processes as well as other sciences such as hydrometallurgy, geochemistry, and crystal chemistry. Knowledge of electrolyte solutions is also key in oil and gas exploration and production, as well as many other environmental engineering endeavors. Until recently, a gap existed between the electrolyte solution theory dedicated to diluted solutions, and the theory, practice, and technology involving concentrated solutions. Electrolytes: Supramolecular Interactions and Non-Equilibrium Phenomena in Concentrated Solutions addresses concentrated electrolyte solutions and the theory of structure formation, super and supramolecular interactions, and other physical processes with these solutions-now feasible due to new precision measurement techniques and experimental data that have become available. The first part of the book covers the electrolyte solution in its stationary state-electrostatic, and various ion-dipole, dipole-dipole, and mutual repulsion interactions. The second part covers the electrolyte solution in its nonstationary status, in the case of forced movement between two plates-electrical conductivity, viscosity, and diffusion. This theoretical framework allows for the determination of activity coefficients of concentrated electrolyte solutions, which play a key role in many aspects of electrochemistry and for developing novel advanced processes in inorganic chemical plants.
Cooperative and synergistic chemical events have attracted significant attention from many researchers engaged in organic chemistry, inorganic chemistry, biological chemistry, polymer chemistry, medicinal chemistry, and other related materials sciences. Synergistic supramolecular systems could be developed to amplify the functions and integration of molecular devices in ways that cannot be achieved by conventional single molecules. This book introduces basic concepts and examples of supramolecular chemistry in terms of cooperation and synergy, and it surveys recent progress in this field.
Stresses the Potential Applications of Biosurfactants in Various Industries Environmental concerns and a demand for sustainable chemical production have become important issues in recent years. As a result, microbial biosurfactant-producing systems are gaining momentum as potential replacements for chemical surfactants. Biosurfactants: Production and Utilization-Processes, Technologies, and Economics explores the production, utilization, and industrial/economic use of biosurfactants in modern biotechnology. This book represents comprehensive material developed by contemporary experts in the field. Focusing on research and developments within the last 20 years, it highlights relevant changes in the industry. It provides a detailed account of the current applications of biosurfactants, considers the potential for further environmental, biological, and industrial applications, and concentrates on surfactants and organisms with possibilities for future use. Emphasizes Process Scale-Up and Commercialization Factoring in the industrial application of biosurfactant production based on renewable resources, the book determines how biosurfactants can enhance or replace the properties of chemically synthesized surface-active agents. It discusses moving beyond the laboratory scale of research and development and on to the industrial scale of commercial interest. The book consists of 17 chapters and features expert authors discussing topics that include: Understanding the regulatory processes controlling the production of biosurfactants Strategies for feasible commercial biosurfactant production Examples of cost analysis based on published information The viability of industrial applications in food, cosmetics, and pharmaceuticals Patents for future trends Biosurfactants: Production and Utilization-Processes, Technologies, and Economics contains special sections devoted to the overview and evaluation of specific patents relating to biosurfactants, and methods for production of biosurfactants on a laboratory and industrial/commercial scale. It also presents novel and proven applications for biosurfactants from a number of biotechnology laboratories and research facilities around the world. In addition, it introduces the reader to a variety of real-world industry techniques readily applicable for practical use.
Among electrode materials, inorganic materials have received vast consideration owing to their redox chemistry, chemical stability, high electrochemical performance, and high-power applications. These exceptional properties enable inorganic-based materials to find application in high-performance energy conversion and storage. The current advances in nanotechnology have uncovered novel inorganic materials by various strategies and their different morphological features may serve as a rule for future supercapacitor electrode design for efficient supercapacitor performance. Inorganic Nanomaterials for Supercapacitor Design depicts the latest advances in inorganic nanomaterials for supercapacitor energy storage devices. Key Features: ? Provides an overview on the supercapacitor application of inorganic-based materials. ? Describes the fundamental aspects, key factors, advantages, and challenges of inorganic supercapacitors. ? Presents up-to-date coverage of the large, rapidly growing, and complex literature on inorganic supercapacitors. ? Surveys current applications in supercapacitor energy storage. ? Explores the new aspects of inorganic materials and next-generation supercapacitor systems.
Increase in antibiotic resistance has forced researchers to develop new drugs against microorganisms. Lipopeptides are produced as secondary metabolites by some microorganisms. Computer-aided Design of Antimicrobial Lipopeptides as Prospective Drug Candidates provides the identification of novel ligands for different antimicrobial lipopeptides. Along with identification, it also provides some of the in silico drug design processes, namely homology modelling, molecular docking, QSAR studies, drug ADMET studies and pharmacophore studies to check the ligand-lipopeptide interaction. Some lipopeptides have shown anti-cancerous properties too, and this book discusses the required templates to design new drugs using computational techniques. Key Features: Focuses on the use lipopeptides as new antimicrobial compounds Presents the basics of in silico modelling for design and development of new drug molecules, and is therefore of interest to beginners in the field Provides a step-by-step process for identification of drug molecules and testing its efficacy in silico Couples with courses on patents and intellectual property rights
Low-dimensional magnetism physics involves the search for new magnetic compounds and improving their characteristics to meet the needs of innovative technologies. A comprehensive overview of key materials, their formulation data and characteristics are detailed by the author. Key selling features: Explores dominant mechanisms of magnetic interaction to determine the parameters of exchange interactions in new magnetic materials. Describes how magnetism and superconductivity not only compete, but also "help" each other. Details characteristics of key materials in the magnetic subsystem. Results of several internationally renowned research groups are included and cited. Suitable for a wide range of readers in physics, materials science, and chemistry interested in the problems of the structure of matter.
This book is devoted to the problems of oxidation chemical reactions and addresses bimodal reaction sequences. Chemical reactions of oxidation, occurring under certain conditions and in multicomponent systems are complex processes. The process of the oxidation essentially changes in the presence and contact of the solid substances with reactants. The role of solid substances and the appearance of this phenomenon in oxidation reaction are discussed. The reader will understand the "driving forces" of this phenomenon and apply it in practice. Written for chemists, physicists, biologists and engineers working in the domain of oxidation reactions. Key Selling Features: Covers the historical background, modern state of the art, and perspectives in investigations of the coupling between heterogeneous and homogeneous reactions Discusses the feasible pathways of the coupling of heterogeneous and homogeneous reactions in oxidation in man-made and natural chemical systems Addresses the abundance, peculiarities and mechanisms of the bimodal reaction sequences in oxidation with dioxygen in recent decades Discusses the existence of the bimodal reaction sequences in chemical systems investigations in atmospheric chemistry and heterogeneous photocatalysis Presented in a simple concise style, accessible for both specialists and non-specialists
Physical-Chemical Mechanics of Disperse Systems and Materials is a novel interdisciplinary area in the science of the disperse state of matter. It covers the broad spectrum of objects and systems with dimensions ranging from nanometers to millimeters and establishes a fundamental basis for controlling and tuning the properties of these systems as well as the processes taking place in them. Physical-chemical mechanics focuses on the analysis of the complex physical-chemical interfacial phenomena taking place both in the transition of a dispersed system into a material, such as in the course of pressing, sintering, hydration hardening, and sol-gel transitions, and in the course of the dispersion of bulk materials taking place in milling, mechanical treatment, friction and wear, and fracturing. These studies are based on thorough experimental investigation of contact interactions between particles in these processes. The book is divided into two sections. The first section covers basic principles of the formation, stability and rupture of contacts between particles in different media and in surfactant solutions, as well as the properties of coagulation structures and their rheology. The second section covers surface phenomena taking place in solid-like structures with phase contacts and in compact bodies with an emphasis on several applications and processes as well as the special role of the Rehbinder effect. Where appropriate and relevant, the book presents essays on specific significant and principal studies, such as the damageability of crystal and glass surfaces, the strength of industrial catalysts, the nano-mechanisms of cement hardening, the role of the structure-mechanical barrier in the stabilization of fluorinated systems, and contact interactions in papermaking. It also devotes attention to experimental methods used in physical-chemical mechanics, the direct measurement of contact strength, and relevant instrumentations. The book utilizes the content used over many years in lecture courses and includes fundamental material on colloid and surface chemistry, the strength of materials, rheology, and tensors, which makes it well suited for novices and experts in the field.
This book is devoted to research in the actual field of mathematical modeling in modern problems of plasma physics associated with vibrations and wake waves excited by a short high-power laser pulse. The author explores the hydrodynamic model of the wake wave in detail and from different points of view, within the framework of its regular propagation, a development suitable for accelerating electrons, and the final tipping effect resulting in unregulated energy transfer to plasma particles. Key selling features: Presents research directly related to the propagation of super-power short laser pulses (subject of the 2018 Nobel Prize in Physics). Presents mathematical modeling of plasma physics associated with vibrations and wake waves excited by a short high-power laser pulse. Includes studies of large-amplitude plasma oscillations. Most of the presented results are of original nature and have not appeared in the domestic and foreign scientific literature Written at a level accessible for researchers, academia, and engineers.
This volume of Advances in Nutritional Research focuses on colostrum and milk as agents of defense against infection both for the suckling offspring and for the lactating mammary gland. The scope of the volume includes positive and negative influences of the consumption of mother's milk on the risk of infec tion, immunobiological roles of individual milk components, activities of milk and its components in promoting development of neonatal immunocompetence, the potential of milk and its components as therapeutic agents and as functional foods that support immune competence, and external influences that determine the immunological activity of milk. The volume is intended to provide a critical assessment of the limits of available information pertaining to humans and animals, together with authoritative comment regarding newer directions and unproven ideas. Part I provides a foundation for the volume. Readers unfamiliar with immunology will find, in Chapter 1, a selective outline of the anatomy and ontogeny of the mammalian immune system and of the types and regulation of immune defenses in mammals. Some emphasis is given to the place of the mammary gland within the common mucosal defense system, and to important species peculiarities in this regard. Chapter 2 is an authoritative and forward looking perspective on the development of knowledge pertaining to the immuno biology of milk as a fluid with both anti-infectious and anti-inflammatory roles. The chapter poses the provocative possibility of a tolerogenic role for milk."
The third edition of a classic text originally by Frost and Pearson, that describes the fundamental principles and established practices that apply to the study and the rates and mechanisms of homogeneous chemical reactions in the gas phase and in solution. Incorporates new advances made during the past 20 years in the study of individual molecular collisions by molecular-beam, laser applications to experimental kinetics, theoretical treatments of reaction rates and our understanding of the principles that govern rates of reaction in solution. Presents numerous examples of the deduction of mechanism from experiment, including intimate details such as stereochemistry and the dependence of reaction pathway on the exact energy states of reacting particles.
This book focuses on mixed crystals formed by molecular substances. The emphasis lies on the elucidation of the structural and thermodynamic properties of two-component systems. Thanks to the fact that the research efforts have been directed to a number of families of chemically coherent substances, rather than to a collection of isolated systems, the knowledge of mixed crystals has substantially increased. This is reflected by the discovery of several empirical relationships between thermodynamic properties, crystallographic properties, and also between thermodynamic mixing properties and exothermodynamic parameters, such as the structural mismatch between the components of the binary systems. This book is a benchmark for material scientists and a unique starting point for anyone interested in mixed crystals.
Every electrochemical source of electric current is composed of two electrodes with an electrolyte in between. Since storage capacity depends predominantly on the composition and design of the electrodes, most research and development efforts have been focused on them. Considerably less attention has been paid to the electrolyte, a battery's basic component. This book fills this gap and shines more light on the role of electrolytes in modern batteries. Today, limitations in lithium-ion batteries result from non-optimal properties of commercial electrolytes as well as scientific and engineering challenges related to novel electrolytes for improved lithium-ion as well as future post-lithium batteries.
Heterophase polymerization is a century-old technology with a wide range of relevant industrial applications, including coatings, adhesives, rubbers, and many other specialized biomedical and high-performance materials. However, due to its multiscale complexity, it still remains a challenging research topic. It is a broad field covering all heterogeneous polymerization processes that result in polymer dispersions. Its technical realizations comprise emulsion polymerization, dispersion polymerization, suspension polymerization, miniemulsion polymerization, microemulsion polymerization, and others. This book is devoted to the science and technology of heterophase polymerization, considering it a generic term as well as an umbrella expression for all of its technical realizations. It presents, from a modern perspective, the basic concepts and principles required to understand the kinetics and thermodynamics of heterophase polymerization at the atomistic, molecular, macromolecular, supramolecular, colloidal, microscopic, mesoscopic, and macroscopic scales. It critically discusses the important physicochemical mechanisms involved in heterophase polymerization, such as nucleation, particle aggregation, mass transfer, swelling, spontaneous emulsification, and polymerization kinetics, along with the experimental evidences at hand.
Carbon Bonding and Structures: Advances in Physics and Chemistry handles the quantification, indexing, and interpretation of the physical and chemical behaviour of carbon in molecules, crystals, and nanosystems. This multi-author volume features cutting edge research and focuses on both inorganic and organic areas of carbon combinations and states modelled from quantum, physical, computational, mathematical, and topological perspectives. The volume begins by proposing the parabolically based energy of the pi-complexes employing the chemical reactivity concepts of electronegativity and chemical hardness, followed by predicting new quantum effects for stiff polymers at ultralow temperatures; it continues with a set of topological and quantum chemical studies dedicated to drifting defects in graphene, endohedral fullerenes, whilst describing the hexagonite synthesis of carbon nanotubes; graph theory is then described in detail with eigenvectors, followed by topological descriptors and statistical applications to organic molecules; advances in the concept of aromaticity - its local and structural forms for conjugated polycyclic systems, the novel coding and ordered rules for benzenoids, the detailed treatment of chirality and stereogenicity demonstrate the organic chemistry theme of the volume; the original mathematical studies dedicated to novel diamond structure and classical fullerenes; intriguing aspects on assessing the chemical hardness and the power of the equalization principle specific to electronegativity as well as their use in modelling the chemo-physical process of protonation are subsequently presented with applications to carbon compounds; the volume finishes with a 3-D minimal topological difference study of aliphatic amine toxicity on biological species and a review explaining how bioresponsive materials and drugs may be designed and synthesized to bridge carbon structures to those based on its analog, silicon. Carbon Bond
Knowledge of thermodynamics is a necessary tool for describing and understanding the physical behavior of new polymers and polymer blends, for instance, compatibility of components, rheological properties, morphological features, and mechanical properties. This book summarizes in a fairly comprehensive manner the recent technical research accomplishments in the area of thermodynamics, characterizations, and applications of polymer blends. In the first chapter, an overview of thermodynamic behaviors of non-equilibrium polymers is discussed. In the consecutive chapters, different properties of polymer blends are discussed, including surface tension, transition, crystallization, morphology, and flow behaviors. Miscibility and molecular characterizations of polymer blends are also covered in this book. Applications to various systems are reviewed, and both experimental concerns and references are supplied. In this time when science has such a strong tendency for diversification, this book demonstrates the relevance of one's own activities with neighboring branches of activities. This book is unique in that the mathematics of the physics of polymers are minimized in order not to discourage the interest of a junior or senior undergraduate or new graduate student by an unnecessarily rigorous approach. However, book aims to widen the readers' general knowledge with a better understanding of the physics of polymers. Applications to various systems are reviewed, and both experimental concerns and references are supplied.
This book presents some fascinating phenomena associated with the remarkable features of high performance polymers and also provides an update on applications of modern polymers. It offers new research on structure-property relationships, synthesis, and purification, and potential applications of high performance polymers. The collection of topics in this book reflects the diversity of recent advances in modern polymers with a broad perspective that will be useful for scientists as well as for graduate students and engineers. The book helps to fill the gap between theory and practice. It explains the major concepts of new advances in high performance polymers and their applications in a friendly, easy-to-understand manner. The book opens with a presentation of classical models, moving on to increasingly more complex quantum mechanical and dynamical theories. Coverage and examples are drawn from modern polymers.
The aim of this book is to provide both a rigorous view and a more practical, understandable view of industrial chemistry and biochemical physics. This book is geared toward readers with both direct and lateral interest in the discipline. This volume is structured into different parts devoted to industrial chemistry and biochemical physics and their applications. Every section of the book has been expanded, where relevant, to take account of significant new discoveries and realizations of the importance of key concepts. Furthermore, emphases are placed on the underlying fundamentals and on acquisition of a broad and comprehensive grasp of the field as a whole. With contributions from experts from both the industry and academia, this book presents the latest developments in the identified areas. This book incorporates appropriate case studies, explanatory notes, and schematics for more clarity and better understanding. This new book: * Highlights some important areas of current interest in biochemical physics and chemical processes * Focuses on topics with more advanced methods * Emphasizes precise mathematical development and actual experimental details * Analyzes theories to formulate and prove the physicochemical principles * Provides an up-to-date and thorough exposition of the present state of the art of complex materials Topics include: * Photoelectrochemical properties of films of extra-coordinated tetrapyrrole compounds and their relationship with the quantum chemical parameters of the molecules * Bio-structural energy criteria of functional states in normal and pathological conditions * The ozone resistance of covulcanizates butadiene-nitrile rubbers with chlorinated ethylene-propylene-diene elastomers * Ways of regulation of release of medicinal substances from chitosan films * Environmental durability of powder polyester paint coatings * Ozone decomposition * Design and synthesis of its derivative with enhanced potential to scavenge hypochlorite radical scavenging capacity of n-(2-mercapto-2-methylpropionyl)-L-cysteine * Bacterial poly(3-hydroxybutyrate) as a biodegradable polymer for biomedicine * Designing, analysis, and industrial use of the dynamic spray scrubber * Magnetic properties of organic paramagnet * The effect of antioxidant drug mexidol on bioenergetic processes and nitric oxide formation in the animal tissues |
You may like...
Controlling Maillard Pathways To…
Donald Mottram, Andrew Taylor
Hardcover
R5,459
Discovery Miles 54 590
New and Future Developments in Microbial…
H. B Singh, Vijai G. Gupta, …
Hardcover
Frontiers of Plasmon Enhanced…
Yukihiro Ozaki, George C. Schatz, …
Hardcover
R4,842
Discovery Miles 48 420
|