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Interaction Component

SCC has been defined as failure by cracking under the combined action of corrosion and stress (Fig. 9.1). The stress and corrosion components interact S3mergistically to produce cracks, which initiate on the surface exposed to the corrodent and propagate in response to the stress state. They may run in any direction but are always perpendicular to the principal stress. Longitudinal or transverse crack orientations in tubes are common (Figs. 9.2 and 9.3). Occasionally, both longitudinal and transverse cracks are present on the same tube (Fig. 9.4). Less frequently, SCC is a secondary result of another primary corrosion mode. In such cases, the cracking, rather than the primary corrosion, may be the actual cause of failure (Fig. 9.5). [Pg.201]

Except for a couple of rather extreme areas (like the combination of general relativity and quantum mechanics, or the unification of the strong and gravitational forces with the electroweak interaction), we believe that all the fundamental physics is known. The only problem is that the real world contains so many (different) components interacting by complicated potentials that a detailed description is impossible. [Pg.400]

Monooxygenase Protein System Structure, Component Interactions, and Hydroxylation Mechanism Katherine E. Liu and Stephen J. Lippard... [Pg.513]

A generalized model of transport allowing for component interactions is provided by nonequilibrium thermodynamics where the flux of component i through the membrane /, [gmol/(cm -s)] is written as a first-order perturbation of the chemical potential dp,/dx [cal/(gmohcm)] ... [Pg.39]

STUDIES OF THE SOLUBLE METHANE MONOOXYGENASE PROTEIN SYSTEM STRUCTURE, COMPONENT INTERACTIONS, AND HYDROXYLATION MECHANISM... [Pg.266]

Fukuda, K.,Ohra, T. 8cYamazoe,Y. (1997). Grapefruit component interacting with rat andhuman P450 CYP3A possible involvement on non-flavonoid components in drug interaction. Biol. Pharm. Bull, 20, 560-4. [Pg.108]

It is important to select stoichiometric co-reductants or co-oxidants for the reversible cycle of a catalyst. A metallic co-reductant is ultimately converted to the corresponding metal salt in a higher oxidation state, which may work as a Lewis acid. Taking these interactions into account, the requisite catalytic system can be attained through multi-component interactions. Stereoselectivity should also be controlled, from synthetic points of view. The stereoselective and/or stereospecific transformations depend on the intermediary structure. The potential interaction and structural control permit efficient and selective methods in synthetic radical reactions. This chapter describes the construction of the catalytic system for one-electron reduction reactions represented by the pinacol coupling reaction. [Pg.65]

One major question of interest is how much asphaltene will flocculate out under certain conditions. Since the system under study consist generally of a mixture of oil, aromatics, resins, and asphaltenes it may be possible to consider each of the constituents of this system as a continuous or discrete mixture (depending on the number of its components) interacting with each other as pseudo-pure-components. The theory of continuous mixtures (24), and the statistical mechanical theory of monomer/polymer solutions, and the theory of colloidal aggregations and solutions are utilized in our laboratories to analyze and predict the phase behavior and other properties of this system. [Pg.452]

Bacteria and their composites with soil minerals or organic matter are capable of taking up a wide range and variety of toxic metals in soil environments. Research done over the last decade or so has greatly improved our understanding of the mechanisms on biosorption of metals and bacte-ria-metal-soil component interactions. However, more studies from molecular level are needed in order to enhance the ability of bacteria and their association with soil components to remediate toxic metals-contaminated soils. The focus of future investigations should be on the mechanisms by which metals are sorbed and bound by bacterial cell surfaces and bacteria-soil/mineral composites. In this connection, X-ray absorption spectroscopy (XAS) is a promising technique because it can provide information about... [Pg.92]

Chemistry is still one of the natural sciences, but in a special and unusual way. Chemists want to understand not only the substances and transformations that occur in the natural world, but also those others that are permitted by natural laws. Consequently, the field involves both discovery and creation. Chemists want to discover the components of the chemical universe—from atoms and molecules to organized chemical systems such as materials, devices, living cells, and whole organisms—and they also want to understand how these components interact and change as a function of time. However, chemical scientists consider not just the components of the chemical universe that already exist they also con-... [Pg.17]

The success of the project depended on the ability of biochemical engineers, chemists, and life scientists to work together. Success depended on an integrated vision of the process and an understanding of how each component interacted with the other components. [Pg.105]

Regulation of protein phosphorylation involves a protein kinase, a protein phosphatase and a substrate protein. These components interact according to the scheme shown in Figure 23-1. A substrate protein is converted from the dephospho form to the phospho form by a protein kinase, and the phospho form is converted back to the dephospho form by a protein phosphatase [1]. [Pg.391]

Process components interact in two different fashions. In some cases a process failure requires the simultaneous failure of a number of components in parallel. This parallel structure is represented by the logical AND function. This means that the failure probabilities for the individual components must be multiplied ... [Pg.474]

Chapter 10, Components and Connectors, discusses more-general component models, in which the kinds of the connectors between components can themselves be extended to include new forms of component interaction, such as properties and events. Chapter 15, How to Specify a Component, describes how to go about writing a component specification. [Pg.61]

Large-grained components are becoming a practical part of an enterprise component strategy. These components interact with one another as much as their smaller cousins do, and they must be analyzed and designed so that they interoperate as expected. [Pg.407]

User-visible cycles should deliver meaningful functionality to users. Plan deliverables for these cycles in terms of abstract business actions (use cases) for the users based on their prioritization and on dependencies between these actions that are uncovered by system specification. For each use case delivered, track all refining system actions and corresponding internal component interactions, and schedule cycles accordingly. For ary design element (action, effect, attribute, invariant), schedule its development based on the earliest scheduled use case that uses it. [Pg.561]


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