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Books > Science & Mathematics > Chemistry > Physical chemistry > General
Rapid evolution of trade, cultural and human relations provides the qualitative and quantitative enhancement of international collaborations, linking the countries with different economical and technological level. Delocalization of High-Tech industry inevitably leads to development of the material science and engineering researches in emergent countries, requiring transfer of know-how, restructuration of basic research and educational networks. This book presents the contributions of participants of the Advanced Research Workshop "Smart Materials for Energy, Communications and Security" (ARW SMECS; www.smecs.ferroix.net), organized in December 2007 in Marrakech in frame of the "NATO - Science for Peace" program. The objective of this event was the attempt to overview several hot topics of material physics related with problems of modern society: transformation and storage of energy, treatment and transmission of information, environmental security issues etc., with the focus of their implementation in Mediterranean Dialogue (MD) countries: Algeria, Egypt, Mauritania, Morocco and Tunisia. The workshop is an important stage in developing of the research network "Mediterranean Electronic Materials" - MEM (www.reseau-MEM.org), that has an objective to encourage the inter-Maghreb and Europe-Maghreb collaborative studies in the area of electroactive materials. Participants of the Advanced Research Workshop "Smart Materials for Energy, Communications and Security" , Marrakech, Morocco, December 2007 v vi PREFACE
Chemical processes in many fields of science and technology, including combustion, atmospheric chemistry, environmental modelling, process engineering, and systems biology, can be described by detailed reaction mechanisms consisting of numerous reaction steps. This book describes methods for the analysis of reaction mechanisms that are applicable in all these fields. Topics addressed include: how sensitivity and uncertainty analyses allow the calculation of the overall uncertainty of simulation results and the identification of the most important input parameters, the ways in which mechanisms can be reduced without losing important kinetic and dynamic detail, and the application of reduced models for more accurate engineering optimizations. This monograph is invaluable for researchers and engineers dealing with detailed reaction mechanisms, but is also useful for graduate students of related courses in chemistry, mechanical engineering, energy and environmental science and biology.
This textbook is the result of the enhancement of several courses on non-equilibrium statistics, stochastic processes, stochastic differential equations, anomalous diffusion and disorder. The target audience includes students of physics, mathematics, biology, chemistry, and engineering at undergraduate and graduate level with a grasp of the basic elements of mathematics and physics of the fourth year of a typical undergraduate course. The little-known physical and mathematical concepts are described in sections and specific exercises throughout the text, as well as in appendices. Physical-mathematical motivation is the main driving force for the development of this text. It presents the academic topics of probability theory and stochastic processes as well as new educational aspects in the presentation of non-equilibrium statistical theory and stochastic differential equations.. In particular it discusses the problem of irreversibility in that context and the dynamics of Fokker-Planck. An introduction on fluctuations around metastable and unstable points are given. It also describes relaxation theory of non-stationary Markov periodic in time systems. The theory of finite and infinite transport in disordered networks, with a discussion of the issue of anomalous diffusion is introduced. Further, it provides the basis for establishing the relationship between quantum aspects of the theory of linear response and the calculation of diffusion coefficients in amorphous systems.
Particle models play an important role in many applications in physics, chemistry and biology. They can be studied on the computer with the help of molecular dynamics simulations. This book presents in detail both the necessary numerical methods and techniques (linked-cell method, SPME-method, tree codes, multipole technique) and the theoretical background and foundations. It illustrates the aspects modelling, discretization, algorithms and their parallel implementation with MPI on computer systems with distributed memory. Furthermore, detailed explanations are given to the different steps of numerical simulation, and code examples are provided. With the description of the algorithms and the presentation of the results of various simulations from the areas material science, nanotechnology, biochemistry and astrophysics, the reader of this book will be able to write his own programs for molecular dynamics step by step and to run successful experiments.
This book presents an overview of fundamental aspects of surface-based biosensors and techniques for enhancing their detection sensitivity and speed. It focuses on rapid detection using miniaturized sensors and describes the physical principles of nanoscale transducers, surface modifications, microfluidics and reaction engineering, diffusion and kinetics. A key challenge in the field of bioanalytical sensors is the rapid delivery of target biomolecules to the sensing surface. While various nanostructures have shown great promise in sensitive detection, diffusion-limited binding of analyte molecules remains a fundamental problem. Recently, many researchers have put forward novel schemes to overcome this challenge, such as nanopore channels, electrokinetics, and dielectrophoresis, to name but a few. This book provides the readers an up-to-date account on these technological advances.
Contains details on the geological units of Nigeria and the associated mineral resources. The book is divided into three parts. Part 1 discusses the geology of the crystalline rocks and their regional distribution while the sedimentary basins constitute the subject of Part 2. Part 3 takes the mineral resources of Nigeria one on one, their geological environment, mode of occurrence, localities and where possible the reserves estimation. Thereafter, an account of the previous and current mining policies (including that of petroleum) of the Nigerian government is given and goes ahead to list some specific investment opportunities in the solid minerals sector.
The book presents a critical and comprehensive account of
Non-equilibrium Physical Chemistry from theoretical and
experimental angle. It covers a wide spectrum of non-equilibrium
phenomena from steady state close to equilibrium to non-linear
region involving transition to bistability, temporal oscillations,
spatio-temporal oscillations and finally to far from equilibrium
phenomena such as complex pattern formation, dynamic instability at
interfaces, Chaos and complex growth phenomena (fractals) in
Physico-chemical systems.
Unsteady-state operations of catalytic reactors provide plentiful
opportunities for research and commercial realization of efficient
heterogeneous catalytic processes. Forced unsteady state conditions
generate unique distributions of process parameters and catalyst
states often unattainable with traditional, steady-state operation.
The unsteady-states can be created by periodic changes in input
flow parameters, such as changes in inlet temperature and
composition, catalyst circulation through reaction and regeneration
zones, or periodic flow reversals through fixed catalyst bed. This
can result in increased productivity, selectivity, capital savings
and operating cost reduction (higher energy efficiency).
Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued.
The aim of Molecular and Nano Electronics: Analysis, Design and
Simulation is to draw together contributions from some of the most
active researchers in this new field in order to illustrate a
theory guided-approach to the design of molecular and
nano-electronics. The field of molecular and nano-electronics has
driven solutions for a post microelectronics era, where
microelectronics dominate through the use of silicon as the
preferred material and photo-lithography as the fabrication
technique to build binary devices (transistors). The construction
of such devices yields gates that are able to perform Boolean
operations and can be combined with computational systems, capable
of storing, processing, and transmitting digital signals encoded as
electron currents and charges. Since the invention of the
integrated circuits, microelectronics has reached increasing
performances by decreasing strategically the size of its devices
and systems, an approach known as scaling-down, which
simultaneously allow the devices to operate at higher speeds.
The NATO ARW "Molecular Self-Organization in Micro-, Nano-, and Macro- Dimensions: From Molecules to Water, to Nanoparticles, DNA and Proteins" to commemorate Professor Alexander S. Davydov was held in Kiev, Ukraine, on 8-12 June, 2008, at the Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine. Theobjective ofthisNATOARWistounveilandformulatetheprincipalfeatures that govern myriads of the molecular self-organization processes in micro-, nano-, and macro-dimensions from the following key representatives such as liquid - ter and aqueous solutions, and molecular liquids, nanodots, nanoparticles including gold, solitons, biomolecules such as DNA and proteins, biopolymers and bios- sors, catalysis, molecular modeling, molecular devices, and thin ?lms, and to offer another, more advanced directions in computational, experimental, and technolo- cal areas of nano- and bioscience towards engineering novel and powerful molecular self-organized assemblies with tailored properties. Nanoscience is indeed one of the most important research and development fr- tiers in modern science. Simplistically, nanoscience is the science of small particles of materials of a size of nanometre. Molecular nanoscience and nanotechnology have brought to us the unprecedented experimental control of the structure of matter with novel extraordinary properties that open new horizons and new opportunities, and new ways to make things, particularly in our everyday life, to heal our bodies, and to care of the environment. Unfortunately, they have also brought unwelcome advances in weaponry and opened yet more ways to foul up the world on an en- mous scale.
Discover why olefin metathesis has asserted itself as a powerful strategy for obtaining fine chemicals, biologically active compounds, architecturally complex assemblies, new materials, and functionalized polymers. This volume compiles all the latest trends in olefin metathesis. In particular, you ll learn how olefin metathesis has growing potential for the development of sustainable technologies with many possible industrial applications.
Applying recent advances in biological and physical sciences, food
scientists have created "novel food ingredients" enzymatically,
chemically or microbiologically. Chief among these are "novel
proteins and polysaccharides" which, like the more established
traditional macromolecules, can perform multifunctional roles such
as thickening, stabilization, gelation or encapsulation and in this
way determine to a large extent the shelf life, texture and
nutritional value of natural and processed foods. Featuring the
latest advances on chemistry, structure and functional properties
of "novel proteins and polysaccharides," with an emphasis on
fundamental structure-function relationships, this book will be
valuable to all those working in product development and
fundamental food research.
Nanotechnology is no longer a merely social talking point and is
beginning to affect the lives of everyone. Carbon nanotechnology as
a major shaper of new nanotechnologies has evolved into a truly
interdisciplinary field, which encompasses chemistry, physics,
biology, medicine, materials science and engineering. This is a
field in which a huge amount of literature has been generated
within recent years, and the number of publications is still
increasing every year. Carbon Nanotechnology aims to provide a
timely coverage of the recent development in the field with updated
reviews and remarks by world-renowned experts. Intended to be an
exposition of cutting-edge research and development rather than a
kind of conference proceeding, Carbon Nanotechnology will be very
useful not only to experienced scientists and engineers, who wish
to broaden their knowledge of the wide-ranging nanotechnology
and/or to develop practical devices, but also to graduate and
senior undergraduate students who look to make their mark in this
field of the future.
This book gathers 12 outstanding contributions that reflect state-of-the-art industrial applications of fluorescence, ranging from the pharmaceutical and cosmetics industries to explosives detection, aeronautics, instrumentation development, lighting, photovoltaics, water treatment and much more. In the field of fluorescence, the translation of research into important applications has expanded significantly over the past few decades. The 18th volume in the Springer Series on Fluorescence fills an important gap by focusing on selected industrial applications of fluorescence, described in contributions by both industry-based researchers and academics engaged in collaborations with industrial partners.
I: Perfumery as An Art.- 1: The Art of Perfumery.- II: Perfumery as A Topic in Life Sciences.- 2: Odours and Perfumes as a System of Signs.- 3: Semiochemicals: Mevalogenins in Systems of Chemical Communication.- 4: Origin of Natural Odorants.- 5: A Consideration of Some Psychological and Physiological Mechanisms of Odor Perception.- III: Trapping and Measuring of Odours.- 6: The Measuring of Odors.- 7: Trapping, Investigation and Reconstitution of Flower Scents.- IV: Classification of Odours.- 8: Empirical Classification of Odours.- 9: Chemical Classification and Structure-Odour Relationships.- V: Compository Techniques and Application Segments.- 10: Creative Perfumery: Composition Techniques.- 11: Support Materials for Odorant Mixtures.- 12: Perfumery Applications: Functional Products.- 13: The Impact of Market Research.- VI: Production of Perfumes.- 14: The Chemistry of Synthetic Raw Materials Production.- 15: Compounding.- 16: The Toxicology and Safety of Fragrances.- 17: The Fragrance Industry in a Changing World.- VII: Topics in Perfumery Research.- 18: Receptors: Current Status and Future Directions.- 19: Natural Products.- 20: Synthetic Products.- Outlook.- List of Contributors.
This book is intended to present for the first time experimental methods to measure equilibria states of pure and mixed gases being adsorbed on the surface of solid materials. It has been written for engineers and scientists from industry and academia who are interested in adsorption based gas separation processes and/or in using gas adsorption for characterization of the porosity of solid materials. This book is the result of a fruitful collaboration of a theoretician (JUK) and an experimentalist (RS) over more than twelve years in the field of gas adsorption systems at the Institute of Fluid- and Thermodynamics (IFT) at the University of Siegen, Siegen, Germany. This collaboration resulted in the development of several new methods to measure not only pure gas adsorption, but gas mixture or coadsorption equilibria on inert porous solids. Also several new theoretical results could be achieved leading to new types of so-called adsorption isotherms based on the concepts of molecular association and - phenomenologically speaking - on that of thermodynamic phases of fractal dimension. Naturally, results of international collaboration of the authors over the years (1980-2000) also are included.
The book deals with atomistic properties of solids which are determined by the crystal structure, interatomic forces and atomic displacements influenced by the effects of temperature, stress and electric fields. The book gives equal importance to experimental details and theory. There are full chapters dedicated to the tensor nature of physical properties, mechanical properties, lattice vibrations, crystal structure determination and ferroelectricity. The other crystalline states like nano-, poly-, liquid- and quasi crystals are discussed. Several new topics like nonlinear optics and the Rietveld method are presented in the book. The book lays emphasis on the role of symmetry in crystal properties. Comprehensiveness is the strength of the book; this allows users at different levels a choice of chapters according to their requirements.
This book presents an overview of recent advances in our understanding of the genesis of diamonds and the associated phases. It is divided into three main parts, starting with an introduction to the analysis of diamond inclusions to infer the formation processes. In turn, the second part of the book presents high-pressure experimental studies in mantle diamond-parental mineral systems with representative multicomponent boundary compositions. The experimental syngenesis phase diagrams provided reveal the physicochemical mechanisms of diamond nucleation and substantiate the mantle-carbonatite concept of the genesis of diamonds and associated phases. Lastly, the book describes the genetic classification of diamond-hosted mineral inclusions and experimentally determined RE "mineral-parental melt" partition coefficients. The physicochemical experimental evidence presented shows the driving forces behind the fractional evolution of the mantle magmas and diamond-parental melts. Given the depth and breadth of its coverage, the book offers researchers essential new insights into the ways diamonds and associated minerals and rocks are naturally created.
This book is written for scientists involved in the calibration of viscometers. A detailed description for stepping up procedures to establish the viscosity scale and obtaining sets of master viscometers is given in the book. Uncertainty considerations for standard oils of known viscosity are presented. The modern viscometers based on principles oftuning fork, ultrasonic, PZT, plate waves, Love waves, micro-cantilever and vibration of optical fiber are discussed to inspire the reader to further research and to generate improved versions. The primary standard for viscosity is pure water. Measurements of its viscosity with accuracy/uncertainty achieved are described. The principles of rotational and oscillation viscometers are explained to enhance the knowledge in calibration work. Devices used for specific materials and viscosity in non SI units are discussed with respect to the need to correlate viscosity values obtained by various devices. The description of commercial viscometers meets the needs of the user."
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