Download or read book Clusters and Nono assemblies written by P. Jena and published by . This book was released on 2005 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cluster Assembled Materials written by Klaus Sattler and published by CRC Press. This book was released on 1996 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is now some 15 years since atomic clusters were first produced and investigated in laboratories. Since then, knowledge concerning clusters has enjoyed rapid and sustained growth, and cluster research has become a new branch of science.

Download or read book Clusters and Cluster Assembled Materials Materials Research Society Symposium Proceedings Volume 206 written by Robert S. Averback and published by . This book was released on 1991 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Metal clusters; Silicon clusters; Non-metallic clusters; Cluster structure; Transformations in metallic and non metallic clusters; Cluster sources and synthesis of clusters; Cluster/surface interactions; Thin films; Cluster assemblies; Structure of nanophase materials; Synthesis and processing of nanophase materials; Properties of nanophase materials; Late news session buckyballs, new materials made from carbon soot.

Download or read book Advances in Metal and Semiconductor Clusters written by M.A. Duncan and published by JAI Press. This book was released on 1998-08-10 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cluster Materials is the fourth volume of the highly successful series Advances in Metal and Semiconductor Clusters. In this volume the focus is on the properties of clusters which determine their potential applications as new materials. Metal and semiconductor clusters have been proposed as precursors for materials or as actual materials since the earliest days of cluster research. In the last few years, a variety of techniques have made it possible to produce clusters in sizes varying from a few atoms up to several thousand atoms. While some measurements are performed in the gas phase on non-isolated clusters, many cluster materials can now be isolated in macroscopic quantities and more convenient studies of their properties become possible. In this volume the authors focus on measurement of optical, electronic, magnetic, chemical and mechanical properties of clusters or of cluster assemblies. All of these properties must fall into acceptable ranges of behaviour before useful materials composed of clusters can be put into practical applications. As evidenced by the various work described here, the realisation of practical products based on cluster materials seems to be approaching rapidly.

Download or read book Assembly Strategy of Polyoxotungstates written by Jun Yan and published by . This book was released on 2010 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Clusters and Nano assemblies written by and published by . This book was released on 2005 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assembly Strategy of Polyoxotungstates written by Jing Gao and published by . This book was released on 2012 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integral Logistic Structures written by Sjoerd Hoekstra and published by Industrial Press Inc.. This book was released on 1992 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two business economists draw on their experience at the Phillips Corporation (Netherlands) to explain the flow of goods from product development and delivery of raw materials, through processing, to the delivery of the finished product, the whole process being driven by customer satisfaction. Translated from the 1987 Dutch edition (first in 1985). Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book International Symposium on Clusters and Nana Assemblies written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Clusters of Galaxies Physics and Cosmology written by Andrei M. Bykov and published by Springer. This book was released on 2019-10-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clusters of galaxies are large assemblies of galaxies, hot gas and dark matter bound together by gravity. Galaxy clusters are now one of the most important cosmological probes to test the standard cosmological models. Constraints on the Dark Energy equation of state from the cluster number density measurements, deviations from the Gaussian perturbation models, the Sunyaev-Zeldovich effect as well as the dark matter proles are among the issues to be studied with clusters. The baryonic composition of clusters is dominated by hot gas that is in quasi-hydrostatic equilibrium within the dark matter-dominated gravitational potential well of the cluster. The hot gas is visible through spatially extended thermal X-ray emission, and it has been studied extensively both for assessing its physical properties and as a tracer of the large-scale structure of the Universe. Magnetic fields as well as a number of non-thermal plasma processes play a role in clusters of galaxies as we observe from radioastronomical observations. The goal of this volume is to review these processes and to investigate how they are interlinked. Overall, these papers provide a timely and comprehensive review of the multi-wavelength observations and theoretical understanding of clusters of galaxies in the cosmological context. Thus, the volume will be particularly useful to postgraduate students and researchers active in various areas of astrophysics and space science. Originally published in Space Science Reviews in the Topical Collection "Clusters of Galaxies: Physics and Cosmology"

Download or read book Assembly of Molecular Clusters of Clusters written by Victor Francisco Calvo-Perez and published by . This book was released on 1996 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Progress Report Pressurized Water Reactor PWR Project for the Period written by and published by . This book was released on 1958-08 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structure and Electrical Properties of an Assembly of Au Nanoclusters written by G. Muralidharan and published by . This book was released on 2001 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conduction through an assembly of nanosized clusters coupled by tunneling barriers is of significant interest both for understanding the fundamental physics involved and for potential applications. In this study, we describe a technique for preparing relatively large (dimensions of a few 100 microns to a few mm in size) monolayer films consisting of 3 nm diameter Au clusters coated with mercaptododecanoic acid, using low molecular weight-polymers as coupling agents. Electrical measurements of the assembly show non-linear characteristics. Below a certain threshold voltage, the current does not vary with an increase in voltage. Above this threshold voltage, current increases with voltage and can be described by a power-law relationship with an exponent close to unity. These characteristics of the I-V curve are discussed with specific reference to theoretical studies on conduction through an array of capacitance-coupled metallic islands and previous experimental results in similar systems.

Download or read book MODELING NON LINEAR OSCILLATORY AND COLLECTIVE PHENOMENA IN ACTIVE COLLOIDAL ASSEMBLIES written by Maria Antonieta Sanchez Farran and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Active colloids exhibit self-powered motion and collective phenomena that resem-ble biological systems such as bacterial colonies. This intelligent behavior makescolloid functionalization an attractive alternative for the design of smart micro-machines. In this thesis, we developed an active colloidal system that displaysoscillations and local synchronization. Here, colloidal assemblies (clusters) of sil-ver phosphate microparticles undergo surface reactions under the presence of UVillumination and hydrogen peroxide. These reactions involve the production andconsumption of ions with different diffusivities, which leads to local chemical gra-dients and self-generated electric fields. A non-uniform particle distribution leadsto a net electric field, to which the particles respond. Self-motility arises fromself-diffusiophoresis while overlapping electric fields lead to diffusiophoretic inter-actions between neighboring particles. The particles oscillate between two behav-iors, schooling and dispersion; we provide evidence for incipient synchronization inthe transition from schooling to dispersion. Such collective behavior is observedwithin H 2 O 2 concentrations of 0.1%-0.25% w/w and the oscillation frequency in-creases with hydrogen peroxide concentration.Starting from our experimental findings, our objective was to develop non-linearmodels that would qualitatively capture the oscillations and local synchronizationin experiments. To model the dynamics of interacting clusters, we developed twoapproaches that successfully capture the qualitative features of the experimentalsystem. The first approach adopts the Boissonade and De Kepper model, a genericnon-linear model used for oscillatory reactions in solution, to include inter-clusterinteractions in our heterogeneous system. As mentioned above, the diffusiophoreticinteractions between clusters are driven by a reacting cluster surface. Therefore,the coupling term involves the rate at which neighboring clusters change theirsurface composition, while the strength of interaction is a function of inter-clusterdistance. When the interactions are sufficiently strong, the clusters oscillate and synchronize. We also explore the transition from a non-oscillatory to an oscillatoryregime and learn that fluctuations in hydrogen peroxide may drive a quiescentsystem into oscillations and local synchronization.In addition to a generic model, we developed a non-linear system that is basedon a simple kinetic model in which the relevant surface species are OOH and O.Multi-cluster simulations based on this model predict different dynamical regimes:synchronization with zero phase offset, synchronization with a stable phase offset,and oscillations without a stable phase relationship. The richer and more exoticbehavior comes from frustrated interactions within the system. An interestingfinding is that, at moderate interactions, the dynamics of a cluster triplet withequal interactions satisfies a rule in which two clusters oscillate with large ampli-tude and a relative phase shift, while the third cluster has a small oscillationamplitude and phase locks to the large amplitude clusters. This rule is similar inspirit to how magnetic spins order in anti-ferromagnetic systems. Such systemsexhibiting interesting properties such as ground state degeneracy: when the spinsinteract within a lattice, there are several spin conformations that minimize un-favorable interactions. Studies have shown that ground state degeneracy may beexploited towards encoding information. As opposed to frustrated magnets, ourdynamical model has no associated energy. However, we can relate the conceptof ground state degeneracy to a number of persistent dynamical states that sat-isfy the triplet rule in a network of interacting triplets. If this is true, a tripletnetwork could also be used to encode information. We performed a simulation-based investigation and identified several persistent dynamical states that satisfythe triplet rule at moderate interactions. These dynamical states share bound-aries, a required property for assembling elementary logic circuits. We illustratethe design of a two-input/one-output AND logic gate, and we initiate a discussionon the practical considerations for their implementation.

Download or read book Operations Research and Enterprise Systems written by Begoña Vitoriano and published by Springer. This book was released on 2017-02-14 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes revised selected papers from the 5th International Conference on Operations Research and Enterprise Systems, ICORES 2016, held in Rome, Italy, in February 2016. The 14 papers presented in this volume were carefully reviewed and selection from a total of 75 submissions. They are organized in topical sections named: methodologies and technologies; and applications.

Download or read book Non Classical Crystallization of Thin Films and Nanostructures in CVD and PVD Processes written by Nong Moon Hwang and published by Springer. This book was released on 2016-06-14 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive introduction to a recently-developed approach to the growth mechanism of thin films and nanostructures via chemical vapour deposition (CVD). Starting from the underlying principles of the low pressure synthesis of diamond films, it is shown that diamond growth occurs not by individual atoms but by charged nanoparticles. This newly-discovered growth mechanism turns out to be general to many CVD and some physical vapor deposition (PVD) processes. This non-classical crystallization is a new paradigm of crystal growth, with active research taking place on growth in solution, especially in biomineralization processes. Established understanding of the growth of thin films and nanostructures is based around processes involving individual atoms or molecules. According to the author’s research over the last two decades, however, the generation of charged gas phase nuclei is shown to be the rule rather than the exception in the CVD process, and charged gas phase nuclei are actively involved in the growth of films or nanostructures. This new understanding is called the theory of charged nanoparticles (TCN). This book describes how the non-classical crystallization mechanism can be applied to the growth of thin films and nanostructures in gas phase synthesis. Based on the author’s graduate lecture course, the book is aimed at senior undergraduate and graduate students and researchers in the field of thin film and nanostructure growth or crystal growth. It is hoped that a new understanding of the growth processes of thin films and nanostructures will reduce trial-and-error in research and in industrial fabrication processes.

Download or read book Molecular and Biochemical Characterization of the Macrotetrolide Biosynthesis Cluster from Streptomyces Griseus DSM40695 written by Wyatt Charles Smith and published by . This book was released on 2002 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: