12,238 research outputs found

    OSCILLATORY MULTILAYER RELAXATION AND STACKING-FAULT IN THE SI(111)7X7 SURFACE

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    Physics, Condensed MatterSCI(E)5ARTICLE106016-60183

    Optimal design conditions for dehydrogenation of cyclohexane in a membrane factor

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    The design variables of a membrane reactor, such as the permeation rate through the membrane and catalyst loading in the membrane, have received little attention in comparison with the operating conditions. A nondimensionalized model for a membrane reactor was developed to account for the effects of permeation rate and catalyst loading. The increased permeation rate did not always increase the exit conversion and there existed a maximum paint of exit conversion. At isothermal conditions, the exit conversion was saturated as catalyst loading was increased; however, when the reactor was under non-isothermal condition along the axial direction, there existed an optimum catalyst loading at which the exit conversion was maximum. With this model, the optimal configuration of permeation rate and catalyst loading could be determined

    METAL-SILICON INTERFACES AND MULTIPLE-SCATTERING IN THEIR LOW-ENERGY ELECTRON DIFFRACTIONS

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    Physics, Condensed MatterSCI(E)5ARTICLE2919-9243

    MODEL-INDEPENDENT STRUCTURE DETERMINATION OF THE INSB(111)2X2 SURFACE

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    Physics, MultidisciplinarySCI(E)2LETTER262877-28775

    Document Flow Model: A Formal Notation for Modelling Asynchronous Web Services Composition

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    This paper presents a formal notation for modelling asynchronous web services composition, using context and coordination mechanisms. Our notation specifies the messages that can be handled by different web services, and describes a system of inter-related web services as the flow of documents between them. The notation allows the typical web services composition pattern, asynchronous messaging, and has the capability to deal with long-running service-to-service interactions and dynamic configuration behaviors
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