![]() |
Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
|
Your cart is empty |
||
|
Books > Science & Mathematics > Chemistry
This book describes fresh approaches to compression technology. The authors describe in detail where, why, and how these can be of value to process plants. As such plants have become ever larger and more complex, more technology-intensive solutions have had to be developed for process machinery. The best practices that have emerged to address these requirements are assembled in this book.
This book reports new findings in the fields of nonlinear optics, quantum optics and optical microscopy. It presents the first experimental device able to transform an input Gaussian beam into a non-diffracting Bessel-like beam. The modulation mechanism, i.e. electro-optic effect, allows the device to be fast, miniaturizable and integrable into solid state arrays. Also presented is an extensive study of the superposition of Bessel beams and their propagation in turbid media, with the aim of realizing field that is both localized and non-diffracting. These findings have been implemented in a light-sheet microscope to improve the optical sectioning. From a more theoretical point of view this work also tackles the problem of whether and how a single particle is able to entangle two distant systems. The results obtained introduce fundamental limitations on the use of linear optics for quantum technology. Other chapters are dedicated to a number of experiments carried out on disordered ferroelectrics including negative intrinsic mass dynamics, ferroelectric supercrystals, rogue wave dynamics driven by enhanced disorder and first evidence of spatial optical turbulence.
This volume, number 23 in the "Tetrahedron Organic Chemistry" series, presents organolithium chemistry from the perspective of a synthetic organic chemist, drawing from the synthetic literature to present a unified overview of how organolithiums can be used to make molecules. The development of methods for the regioselective synthesis of organolithiums has replaced their image of indiscriminate high reactivity with one of controllable and subtle selectivity. Organolithium chemistry has a central role in the selective construction of C-C bonds in both simple and complex molecules, and for example has arguably overtaken aromatic electrophilic substitution as the most powerful method for regioselective functionalisation of aromatic rings. The twin themes of reactivity and selectivity run through the book, which reviews the ways by which organolithiums may be formed and the ways in which they react. Topics include advances in directed metallation, reductive lithiation and organolithium cyclisation reactions, along with a discussion of organolithium stereochemistry and the role played by ligands such as (-)-sparteine.
Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area-one of great importance to organic chemists, polymer chemists, and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties.
Lithium air rechargeable batteries are the best candidate for a power source for electric vehicles, because of their high specific energy density. In this book, the history, scientific background, status and prospects of the lithium air system are introduced by specialists in the field. This book will contain the basics, current statuses, and prospects for new technologies. This book is ideal for those interested in electrochemistry, energy storage, and materials science.
For many years it was believed that translational symmetry would be the fundamental property of crystal structures of natural and synthetic compounds. It is now recognised that many compounds crystallise without translational symmetry of their atomic structures. "Incommensurate Crystallography" gives a comprehensive account of the superspace theory for the description of crystal structures and symmetries of these incommensurately modulated crystals and incommensurate composite crystals. It thus provides the necessary background for quantitative analysis of incommensurate crystals by methods in Solid State Chemistry and Solid State Physics. The second half of "Incommensurate Crystallography" is devoted to crystallographic methods of structural analysis of incommensurate compounds. Thorough accounts are given of the diffraction by incommensurate crystals, the choice of parameters in structure refinements, and the use of superspace in analysing crystal structures. The presentation of methods of structure determination includes modern methods like the Maximum Entropy Method and Charge Flipping.
In the post-genome era, questions concerning gene products, enzymes, and metabolism are returning to the forefront of life science research. Genetic information on its own does not fully account for an enzyme's kinetic and regulatory properties or for the behavior of the enzymes within its particular cellular milieu. Unanswered questions about the regulation, integration, and adaptation of metabolism have led to a resurgence of interest in protein, enzymological, and metabolic research for understanding biological processes. Functional Metabolism: Regulation and Adaptation provides a comprehensive survey of metabolism. It includes an in-depth examination of the regulation of carbohydrates, lipids, and amino acids, and approaches to the study of enzyme regulation, signal transduction, and control of transcription and translation. The contributors-an internationally recognized group of researchers-also cover:
From the basics of metabolic regulation and adaptation to the latest relevant advances in the genetic, proteomic, and enzymatic basis of how cells regulate their functions, Functional Metabolism: Regulation and Adaptation offers the most exhaustive treatment of the subject currently available. It is an essential text for students and practitioners in biochemistry, cell and molecular biology, and biomedicine.
Catalysts are required for a variety of applications and researchers are increasingly challenged to find cost effective and environmentally benign catalysts to use. This volume looks at modern approaches to catalysis and reviews the extensive literature including direct methane conversion, nanocomposite catalysts for transformation of biofuels into syngas and hydrogen, and catalytic wet air oxidation technology for industrial wastewater treatment. Appealing broadly to researchers in academia and industry, it will be of great benefit to any researcher wanting a succinct reference on developments in this area now and looking to the future.
CALCULATIONS OF ANALYTICAL CHEMISTRY by LEICESTER F. HAMILTON, S. B. and STEPHEN G. SIMPSON. Originally published in 1922. PREFACE: The title of this book has been clfanged from Calculations of Quantitative Chemical Analysis to Calculations of Analytical Chem istry because the subject matter has been expanded to cover the stoichiometry of both qualitative and quantitative analysis. In order to include calculations usually covered in courses in qualitative analysis, some rearrangements of material have been made, new sections have been added, and chapters dealing with equilibrium constants and with the more elementary aspects of analytical . calculations have been considerably expanded. Al together, the number of sections has been increased from 78 to 114 and the number of problems from 766 to 1,032. The greater part of the book is still devoted to the calculations of quantitative analysis. Short chapters on conductometric and amperometric titrations and a section on calibration of weights have been added, and many other changes and additions have been made at various points in the text. A section reviewing the use of logarithms has been inserted, and a table of molecular weights covering most of the problems in the book is included in the Appendix. It is felt that every phase of general analytical chemistry is adequately covered by problems, both with and without answers, and that most of the problems require reasoning on the part of the student and are not solved by simple substitution in a formula. LEICESTER F. HAMILTON STEPHEN G. SIMPSON CAMBRIDGE, MASS., February, 1947. Contents include: PREFACE v PART I. GENERAL ANALYSIS CHAPTER I. MATHEMATICAL, OPERATIONS 1. Factors Influencingthe Reliability of Analytical Results 1 2. Deviation Measures as a Means of Expressing Reliability ... . 2 3. Significant Figures as a Means of Expressing Reliability 3 4. Rules Governing the Use of Significant Figures in Chemical Com putations 3 5. Conventions Regarding the Solution of Numerical Problems .... 6 Problems 1-18 7 6. Rules Governing the Use of Logarithms .... 9 7. Method of Using Logarithm Tables . . 13 8. Use of the Slide Rule 14 Problems 19-24 15 CHAPTER II. CHEMICAL, EQUATIONS 9. Purpose of Chemical Equations 16 10. Types of Chemical Equations 16 11. lonization of Acids, Bases, and Salts 17 12. Ionic Equations Not Involving Oxidation 18 13. Oxidation Number 20 14. Ionic Oxidation and Reduction Equations 21 Problems 25-43 24 CHAPTER III. CALCULATIONS BASED ON FORMULAS AND EQUATIONS 15. Mathematical Significance of a Chemical P ormula . 28 16. Formula Weights 28 17. Mathematical Significance of a Chemical Equation 29 Problems 44-70 32 CHAPTER IV. CONCENTRATION OF SOLUTIONS 18. Methods of Expressing Concentration 36 19. Grains per Unit Volume 3f> vii CONTENTS 20. Percentage Composition. . . . . 36 21. Specific Gravity 36 22. Volume Ratios 37 23. Molar and Formal Solutions 37 24. Equivalent Weight and Normal Solution 38 25. Simple Calculations Involving Equivalents, Milliequivalents, and Normality 39 Problems 71-86 43 CHAPTER V. P] quiLiBRiUM CONSTANTS 26. Law of Mass Action 46 27. Ion Product Constant of Water 47 28. pll Value 48 Problems 87-94 49 29. lonization Constant 50 30. Common Ion Effect. Buffered Solution 52 31. lonization of Polybasic Acids 53 32.
The revised edition gives a comprehensive mathematical and physical presentation of fluid flows in non-classical models of convection - relevant in nature as well as in industry. After the concise coverage of fluid dynamics and heat transfer theory it discusses recent research. This monograph provides the theoretical foundation on a topic relevant to metallurgy, ecology, meteorology, geo-and astrophysics, aerospace industry, chemistry, crystal physics, and many other fields.
Porphyrins, composed of four pyrrole subunits, are highly important compounds, which are ubiquitous in biological systems. This book reviews the factors that influence physical and chemical properties of tetrapyrrole species and explores the ways to tune geometric and electronic structures of porphyrins in order to modify their electronic, optical and magnetic characteristics.
Computational Modelling of Nanoparticles highlights recent advances in the power and versatility of computational modelling, experimental techniques, and how new progress has opened the door to a more detailed and comprehensive understanding of the world of nanomaterials. Nanoparticles, having dimensions of 100 nanometers or less, are increasingly being used in applications in medicine, materials and manufacturing, and energy. Spanning the smallest sub-nanometer nanoclusters to nanocrystals with diameters of 10s of nanometers, this book provides a state-of-the-art overview on how computational modelling can provide, often otherwise unobtainable, insights into nanoparticulate structure and properties. This comprehensive, single resource is ideal for researchers who want to start/improve their nanoparticle modelling efforts, learn what can be (and what cannot) achieved with computational modelling, and understand more clearly the value and details of computational modelling efforts in their area of research.
Acetylenic precursors are important reactants for creating carbon-based architectures via linkage reactions. While their capability of forming intermolecular bonds is well investigated in solution, very few systematic studies have been carried out to create alkyne-based nanostructures on metal substrates under ultra-high vacuum conditions. Synthesizing extended and regular carbon scaffolds requires a detailed knowledge of alkyne chemistry in order to control reaction pathways and limit unwanted side reactions. Using the bottom-up approach on metal surfaces, the authors establish protocols to fabricate regular architectures built up by the on-surface formation of selective organometallic and C-C bonds with thoughtfully designed alkyne-functionalized monomers. The structural and functional properties of the resulting organometallic and covalent nanostructures are characterized by means of scanning tunneling microscopy. The results open up new perspectives in the fields of heterogeneous catalysis and the on-surface synthesis of functional interfaces under mild reaction conditions.
This book describes rubber nanocomposites and their applications in the automobile sector. Newly developed nanofibres and nanofinished textiles, with their novel characteristics and various applications in next-generation automobiles, are also discussed. Lastly, a comprehensive evaluation and overview of the impact of nanotechnology on the textiles in automobile industries are presented.
This book studies the dynamics of fundamental collective excitations in quantum materials, focusing on the use of state-of-the-art ultrafast broadband optical spectroscopy. Collective behaviour in solids lies at the origin of several cooperative phenomena that can lead to profound transformations, instabilities and phase transitions. Revealing the dynamics of collective excitations is a topic of pivotal importance in contemporary condensed matter physics, as it provides information on the strength and spatial distribution of interactions and correlation. The experimental framework explored in this book relies on setting a material out-of-equilibrium by an ultrashort laser pulse and monitoring the photo-induced changes in its optical properties over a broad spectral region in the visible or deep-ultraviolet. Collective excitations (e.g. plasmons, excitons, phonons...) emerge either in the frequency domain as spectral features across the probed range, or in the time domain as coherent modes triggered by the pump pulse. Mapping the temporal evolution of these collective excitations provides access to the hierarchy of low-energy phenomena occurring in the solid during its path towards thermodynamic equilibrium. This methodology is used to investigate a number of strongly interacting and correlated materials with an increasing degree of internal complexity beyond conventional band theory.
Over the last three decades, the interface between chemistry and biology has grown increasingly dynamic, resulting in the rapid expansion of communication and collaboration amongst research scientists, faculty and students in the fields of chemistry, biochemistry, biology, bioengineering, and beyond. This is due in part to society's growing demand for scientists, engineers and practitioners who can bring a more interdisciplinary approach to their work. For this reason, new elective courses at the undergraduate level that address topics crossing the traditional boundaries of chemistry and biology are increasingly necessary, as are courses that can provide traditional chemistry students with additional insight into the fundamental role that chemistry plays in the function and evolution of biological systems. Morrow's book builds on the foundation of a one-year introductory course in organic chemistry, focusing on familiar organic chemical processes associated with the biosynthesis of primary and secondary metabolites, with special emphasis on the latter group. Ultimately, it brings to undergraduate science majors the opportunity to develop a deeper understanding of fundamental mechanistic organic chemistry within a meaningful biological context that goes far beyond the usual boxed essays or supplemental problems that increasingly crowd the margins of many introductory organic chemistry textbooks. The book offers ideal support for courses in chemistry, biochemistry, biology, pre-medicine and bioengineering programs.
Advances in Biomembranes and Lipid Self-Assembly, Volume 28, formerly titled Advances in Planar Lipid Bilayers and Liposomes, provides a global platform for the study of cell membranes, lipid model membranes, and lipid self-assemblies, from the micro- to the nanoscale. Planar lipid bilayers are widely studied due to their ubiquity in nature. This book presents research on their application in the formulation of biomimetic model membranes, and in the design of artificial dispersion of liposomes. Moreover, the book discusses how lipids self-assemble into a wide range of other structures, including micelles and the liquid crystalline hexagonal and cubic phases. Chapters in this volume present both original research and comprehensive reviews written by world leading experts and young researchers.
This book investigates a wide range of phase equilibrium modelling and calculation problems for compositional thermal simulation. Further, it provides an effective solution for multiphase isenthalpic flash under the classical framework, and it also presents a new flash calculation framework for multiphase systems, which can handle phase equilibrium and chemical reaction equilibrium simultaneously. The framework is particularly suitable for systems with many phases and reactions. In this book, the author shows how the new framework can be generalised for different flash specifications and different independent variables. Since the flash calculation is at the heart of various types of compositional simulation, the findings presented here will promote the combination of phase equilibrium and chemical equilibrium calculations in future simulators, aiming at improving their robustness and efficiency.
Lignocellulosic materials are a natural, abundant and renewable
resource essential to the functioning of industrial societies and
critical to the development of a sustainable global economy. As
wood and paper products, they have played an important role in the
evolution of civilization. Improvement of the quality and
manufacturing efficiency of such products has often been hampered
by the lack of understanding of the complex structures and chemical
compositions of the materials.
The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field. The chapters "Assessment of Simple Models for Molecular Simulation of Ethylene Carbonate and Propylene Carbonate as Solvents for Electrolyte Solutions" and "Elucidating Solvation Structures for Rational Design of Multivalent Electrolytes-A Review" are available open access under a CC BY 4.0 License via link.springer.com.
This book presents the applications of ion-exchange materials in the chemical and food industries. It includes topics related to the application of ion exchange chromatography in water softening, purification and separation of chemicals, separation and purification of food products and catalysis. This title is a highly valuable source of knowledge on ion-exchange materials and their applications suitable for postgraduate students and researchers but also to industrial R&D specialists in chemistry, chemical, and biochemical technology. Additionally, this book will provide an in-depth knowledge of ion-exchange column and operations suitable for engineers and industrialists. |
You may like...
My Prayer Journal - 120 Days of Prayer…
Christian Art Gifts Inc
Paperback
|