The Dispersion

Dispersion invokes its own end, the return to a prior unitary state or the passage to a new, more ordered state, the beginning of a new era. The monogenetic hypothesis backed by the Bible – the human species was born in a single place ...

The Dispersion

The Dispersion offers a unique account of how the word “diaspora”, coined in the third century BCE, has recently become both one of the more emblematic terms of the global era and a fashionable academic concept.

Dissolution of Gases in Liquids and the Formation of Dispersion Systems in the Mode of Torsion Oriented Turbulization

In general, all dispersion systems consist of two or more components. If no collateral reversible chemical reactions are happening during the formation of such systems, then the number of components is equal to the number of substances ...

Dissolution of Gases in Liquids and the Formation of Dispersion Systems in the Mode of Torsion Oriented Turbulization

The purpose of this work is to develop the theoretical background of innovative breakthrough physicochemical processes of the dissolution of hazardous and toxic gases and the formation of dispersion systems in the mode of torsion-oriented turbulization. The phenomena in question occur in a chemical reactor installed on the vibration machine’s mobile platform loaded with components of the processed dispersion system. When the external vibrational indignant forces reach certain critical parameters, the subject phenomena occur as the result of simultaneous and joint actions of mechanical resonance and fluid shock impact. Through the explosion-like action, the mixture components fill the reactor’s internal chamber and convert into dispersion systems.

The Preparation and Properties of Dispersion hardened Uranium Powder Products

Hot indentation and hot bend tests , as well as metallographic studies of the structures obtained , also have been used to evaluate the dispersion - hardened material . During the first year's effort the following was accomplished : 1.

The Preparation and Properties of Dispersion hardened Uranium Powder Products


Mean velocity longitudinal dispersion and reaeration characteristics of selected streams in the Kentucky River Basin

where Kt is the desorption coefficient , in days- , t is the time of travel of the peak concentration of the conservative dispersion - dilution tracer , in days , Ct is the peak concentration of the gas tracer , in ug / L , and Cd is ...

Mean velocity  longitudinal dispersion  and reaeration characteristics of selected streams in the Kentucky River Basin


Developments in the Elimination of Boron Loss from UO2 stainless Steel Dispersion Fuel Plates for the Argonne Advanced Research Reactor Mark I Core

In general , the dispersion was adjudged satisfactory for irradiation tests . d . Discussion Unfortunately the AARR Mark I Core Development Program was terminated before the merits of using borosilicate glass beads as a burnable poison ...

Developments in the Elimination of Boron Loss from UO2 stainless Steel Dispersion Fuel Plates for the Argonne Advanced Research Reactor Mark I Core


Engineering Chemistry

Depending on the nature of the dispersed phase and that of the dispersion medium On this basis, colloidal solution can be of eight types. Table 14.4 Type of colloids on the basis of nature of dispersed phase and that of the dispersion ...

Engineering Chemistry

Gain a detailed understanding of the fundamental concepts of chemistry and their engineering applications with this fully revised second edition. Catering to the needs of first and second semester undergraduate students from all branches of engineering taking courses on engineering chemistry, it offers new material on topics such as periodic properties, structure and bonding, gaseous states, ionic equilibrium, oxidation and reduction, Werner's coordination theory, Sidgwick coordination theory, valence bond theory, crystal field theory, bonding in coordination compounds, and isomerism in coordination compounds. Lucid language and an easy-to-learn approach help students to understand the basic concepts, use them to construct engineering materials, and solve problems associated with them. Each chapter is further strengthened by numerous examples and review questions.

Nanocomposite Structures and Dispersions

dispersion of polar monomers in nonpolar dispersion media; surfactants with low HLB values are required. A number of surfactants were screened, including standard systems, such as C18EO10, sodium bis(2-ethylhexyl)-sulfosuccinate (AOT), ...

Nanocomposite Structures and Dispersions

Nanocomposite Structures and Dispersions deals with the preparation of gelled, branched and crosslinked nanostructured polymers in the solution free radical polymerization and controlled/living radical polymerization and polymer and composite nanoparticles and nanostructures in disperse systems, the kinetics of direct and inverse disperse polymerizations (microemulsion, miniemulsion, emulsion, dispersion and suspension polymerization), the bottom-up approach building of functionalized nanoparticles, modelling of radical microemulsion polymerization, the characterization of traditional and non-traditional polymer dispersions, the collective properties of nanomaterials and their (bio)applications. This book is designed to bridge that gap and offers several unique features. First, it is written as an introduction to and survey of nanomaterials with a careful balance between basics and advanced topics. Thus, it is suitable for both beginners and experts, including graduate and upper-level undergraduate students. Second, it strives to balance the colloidal aspects of nanomaterials with physical principles. Third, the book highlights nanomaterial based architectures including composite or hybrid conjugates rather than only isolated nanoparticles. A number of ligands have been utilized to biodecorate the polymer and composite nanocarriers. Finally, the book provides an in depth discussion of important examples of reaction mechanisms of bottom-up building of functionalized nanoparticles, or potential applications of nanoarchitectures, ranging from physical to chemical and biological systems. Free radical (controlled) polymerization, branching, crosslinking and gelling Kinetics and mechanism of polymer nanoparticles formation Modelling of radical polymerization in disperse systems Polymer, composite and metal nanoparticles, nanostructures and nanomaterials Smart nanostructures, biodecorated particles, nanocarriers and therapeutics

Mathematical Methods in Chemical and Biological Engineering

Dispersion of solutes and contaminants also occurs in groundwater where the water flow occurs through a porous medium. The dispersion phenomenon strongly affects the conversion or rate of reaction in a chemical reactor since the ...

Mathematical Methods in Chemical and Biological Engineering

Mathematical Methods in Chemical and Biological Engineering describes basic to moderately advanced mathematical techniques useful for shaping the model-based analysis of chemical and biological engineering systems. Covering an ideal balance of basic mathematical principles and applications to physico-chemical problems, this book presents examples drawn from recent scientific and technical literature on chemical engineering, biological and biomedical engineering, food processing, and a variety of diffusional problems to demonstrate the real-world value of the mathematical methods. Emphasis is placed on the background and physical understanding of the problems to prepare students for future challenging and innovative applications.

The Theory of Dispersion Models

Furthermore , the shape of the unit variance function itself provides a useful summary of the degree and type of non - normality of the corresponding dispersion model . The terminology ' reproductive ' for reproductive exponential ...

The Theory of Dispersion Models

The theory of dispersion models straddles both statistics and probability, and involves an encyclopedic collection of tools, such as exponential families, asymptotic theory, stochastic processes, Tauber theory, infinite divisibility, and stable distributions. The Theory of Dispersion Models introduces the reader to these models, which serve as error distributions for generalized linear models, and looks at their applications within this context.

Nonlinear Optical Systems

6.3.6 Period Doubling of Dispersion-Managed Solitons at around Zero Cavity Dispersion Although.a.dispersion-managed.cavity.consists.of.fibers.with.either.posi- tive.or.negative.dispersion,.and.on.average.the.pulse.peak.power.is.lower.

Nonlinear Optical Systems

Nonlinear Optical Systems: Principles, Phenomena, and Advanced Signal Processing is a simplified overview of the evolution of technology associated with nonlinear systems and advanced signal processing. This book's coverage ranges from fundamentals to phenomena to the most cutting-edge aspects of systems for next-generation biomedical monitoring an

Proceedings of the Royal Society

The disΔ persion of the first half is , and this is magnified m , times by the second , m which also adds its own dispersion A ,, thus giving m m , + 4 = 24 ,. This will be seen at once to be equivalent to the algebraic process employed ...

Proceedings of the Royal Society


Colloid Journal of the USSR

Floccules of liquefied dispersion of PM100. lated agglomerates with sizes up to 200-300 um (Fig. 3). The aggregates are very strong, and they do not break down at the maximum velocities of dispersion. The structure of either the stable ...

Colloid Journal of the USSR


Journal of the Chemical Society

Dispersion Equivalents . By J. H. GLADSTONE ( Proc . Roy . Soe . , 42 , 401–410 ) .— This paper is a continuation of the author's researches on dispersion equivalents . Notwithstanding the difficulties of the investigation ...

Journal of the Chemical Society

"Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12.

Ray Tracing and Beyond

Figure 6.2 [Left] A conceptual figure showing the two dispersion surfaces Dα(x,k) = 0 (dashed) and Dβ (x,k) = 0 (solid). The dispersion functions Dα (x,k) andD β (x,k) are two eigenvalues of theN × N dispersion matrixD(x,k), ...

Ray Tracing and Beyond

This complete introduction to the use of modern ray tracing techniques in plasma physics describes the powerful mathematical methods generally applicable to vector wave equations in non-uniform media, and clearly demonstrates the application of these methods to simplify and solve important problems in plasma wave theory. Key analytical concepts are carefully introduced as needed, encouraging the development of a visual intuition for the underlying methodology, with more advanced mathematical concepts succinctly explained in the appendices, and supporting Matlab and Raycon code available online. Covering variational principles, covariant formulations, caustics, tunnelling, mode conversion, weak dissipation, wave emission from coherent sources, incoherent wave fields, and collective wave absorption and emission, all within an accessible framework using standard plasma physics notation, this is an invaluable resource for graduate students and researchers in plasma physics.

Optical Fiber Telecommunications VB

160Gbaud, it is necessary to compensate for both the path-averaged CD (D=0) at the center wavelength of the pulse and for the path-averaged CD slope (dD/ d =0), because the dispersion slope produces oscillations near the trailing edge ...

Optical Fiber Telecommunications VB

Optical Fiber Telecommunications V (A&B) is the fifth in a series that has chronicled the progress in the research and development of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition not only brings a fresh look to many essential topics but also focuses on network management and services. Using high bandwidth in a cost-effective manner for the development of customer applications is a central theme. This book is ideal for R&D engineers and managers, optical systems implementers, university researchers and students, network operators, and the investment community. Volume (A) is devoted to components and subsystems, including: semiconductor lasers, modulators, photodetectors, integrated photonic circuits, photonic crystals, specialty fibers, polarization-mode dispersion, electronic signal processing, MEMS, nonlinear optical signal processing, and quantum information technologies. Volume (B) is devoted to systems and networks, including: advanced modulation formats, coherent systems, time-multiplexed systems, performance monitoring, reconfigurable add-drop multiplexers, Ethernet technologies, broadband access and services, metro networks, long-haul transmission, optical switching, microwave photonics, computer interconnections, and simulation tools. Biographical Sketches Ivan Kaminow retired from Bell Labs in 1996 after a 42-year career. He conducted seminal studies on electrooptic modulators and materials, Raman scattering in ferroelectrics, integrated optics, semiconductor lasers (DBR , ridge-waveguide InGaAsP and multi-frequency), birefringent optical fibers, and WDM networks. Later, he led research on WDM components (EDFAs, AWGs and fiber Fabry-Perot Filters), and on WDM local and wide area networks. He is a member of the National Academy of Engineering and a recipient of the IEEE/OSA John Tyndall, OSA Charles Townes and IEEE/LEOS Quantum Electronics Awards. Since 2004, he has been Adjunct Professor of Electrical Engineering at the University of California, Berkeley. Tingye Li retired from AT&T in 1998 after a 41-year career at Bell Labs and AT&T Labs. His seminal work on laser resonator modes is considered a classic. Since the late 1960s, He and his groups have conducted pioneering studies on lightwave technologies and systems. He led the work on amplified WDM transmission systems and championed their deployment for upgrading network capacity. He is a member of the National Academy of Engineering and a foreign member of the Chinese Academy of Engineering. He is a recipient of the IEEE David Sarnoff Award, IEEE/OSA John Tyndall Award, OSA Ives Medal/Quinn Endowment, AT&T Science and Technology Medal, and IEEE Photonics Award. Alan Willner has worked at AT&T Bell Labs and Bellcore, and he is Professor of Electrical Engineering at the University of Southern California. He received the NSF Presidential Faculty Fellows Award from the White House, Packard Foundation Fellowship, NSF National Young Investigator Award, Fulbright Foundation Senior Scholar, IEEE LEOS Distinguished Lecturer, and USC University-Wide Award for Excellence in Teaching. He is a Fellow of IEEE and OSA, and he has been President of the IEEE LEOS, Editor-in-Chief of the IEEE/OSA J. of Lightwave Technology, Editor-in-Chief of Optics Letters, Co-Chair of the OSA Science & Engineering Council, and General Co-Chair of the Conference on Lasers and Electro-Optics.

Commercial Wireless Circuits and Components Handbook

As it is often information on time-dependent dispersion effects that is gathered, it is important to understand the time placement of sampling relative to the time constants of these ratedependent effects.

Commercial Wireless Circuits and Components Handbook

A comprehensive source for microwave and wireless circuit design, the Commercial Wireless Circuits and Components Handbook reviews the fundamentals of transmitters and receivers, then presents detailed chapters on individual circuit types. It also covers packaging, large and small signal characterization, and high volume testing techniques for both devices and circuits. This handbook not only provides important information for engineers working with wireless RF or microwave circuitry, it also serves as an excellent source for those requiring information outside of their area of expertise, such as managers, marketers, and technical support workers who need a better understanding of the fields driving their decisions.

Quantum Optics and Nanophotonics

2.3.5 Dispersion relation of an SPP 2.3.5.1 Dispersion relation of an SPP for a non-lossy Drude metal Here, we discuss the dispersion relation of a surface plasmon based on on the Drude model. As already stated, this is a crude model ...

Quantum Optics and Nanophotonics

Quantum Optics and Nanophotonics consists of the lecture notes of the Les Houches Summer School 101 held in August 2013. Some of the most eminent experts in this flourishing area of research have contributed chapters lying at the intersection of basic quantum science and advanced nanotechnology. The book is part of the renowned series of tutorial books that contain the lecture notes of all the Les Houches Summer Schools since the 1950's and cover the latest developments in physics and related fields.

Water Quality Modelling for Rivers and Streams

The inner nature of the dispersion phenomena requires, first of all, to split the dispersion coefficient in two components, namely, the coefficient of longitudinal dispersion, EL, and the coefi'icient of transverse dispersion Etr (Back ...

Water Quality Modelling for Rivers and Streams

The main objective of the Water Framework Directive in the European countries is to achieve a “good status” of all the water bodies, in the integrated management of river basins. In order to assess the impact of improvement measures, water quality models are necessary. During the previous decades the progress in computer technology and computational methods has supported the development of advanced mathematical models for pollutant transport in rivers and streams. This book is intended to provide the fundamental knowledge needed for a deeper understanding of these models and the development of new ones, which will fulfil future quality requirements in water resources management. This book focuses on the fundamentals of computational techniques required in water quality modelling. Advection, dispersion and concentrated sources or sinks of contaminants lead to the formulation of the fundamental differential equation of pollutant transport. Its integration, according to appropriate initial and boundary conditions and with the knowledge of the velocity field, allows for pollutant behaviour to be assessed in the entire water body. An analytical integration is convenient only in one-dimensional approach with considerable simplification. Integration in the numerical field is useful for taking into account particular aspects of water body and pollutants. To ensure their reliability, the models require accurate calibration and validation, based on proper data, taken from direct measurements. In addition, sensitivity and uncertainty analysis are also of utmost importance. All the above items are discussed in detail in the 21 chapters of the book, which is written in a didactic form for professionals and students.

Coulson and Richardson s Chemical Engineering

morphology of particles (surface roughness, porous nature), and on the properties of the dispersion medium. Particle density is a useful quantity for estimating the specific surface area of the particles. Under the assumption of ideal ...

Coulson and Richardson   s Chemical Engineering

Coulson and Richardson's Chemical Engineering: Volume 2A: Particulate Systems and Particle Technology, Sixth Edition, has been fully revised and updated to provide practitioners with an overview of chemical engineering, including clear explanations of theory and thorough coverage of practical applications, all supported by case studies. A worldwide team of contributors has pooled their experience to revise old content and add new content. The content has been updated to be more useful to practicing engineers. This complete reference to chemical engineering will support you throughout your career, as it covers every key chemical engineering topic. Fluid Flow, Heat Transfer and Mass Transfer has been developed from the series’ volume 1, 6th edition. This volume covers the three main transport process of interest to chemical engineers: momentum transfer (fluid flow), heat transfer and mass transfer and the relationships between them. Particulate Systems and Particle Technology has been developed from the series’ volume 2, 5th edition. This volume covers the properties of particulate systems, including the character of individual particles and their behavior in fluids. Sedimentation of particles, both singly and at high concentrations, flow in packed and fluidized beads and filtration are then examined. Separation Processes has been developed from the series’ volume 2, 5th edition. This volume covers distillation and gas absorption, which illustrate applications of the fundamental principles of mass transfer. Several techniques—adsorption, ion exchange, chromatographic and membrane separations, and process intensification—are described. Chemical and Biochemical Reactors and Reaction Engineering has been developed from the series’ volume 3, 3rd edition. Features fully revised reference material converted from textbooks Covers foundational to technical topics Features emerging applications, numerical methods and computational tools