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One Application (one + application)
Selected AbstractsAsymptotic equivalence and contiguity of some random graphsRANDOM STRUCTURES AND ALGORITHMS, Issue 1 2010Svante Janson Abstract We show that asymptotic equivalence, in a strong form, holds between two random graph models with slightly differing edge probabilities under substantially weaker conditions than what might naively be expected. One application is a simple proof of a recent result by van den Esker, van der Hofstad, and Hooghiemstra on the equivalence between graph distances for some random graph models. © 2009 Wiley Periodicals, Inc. Random Struct. Alg., 2010 [source] Semiconductor Behavior of a Metal-Organic Framework (MOF)CHEMISTRY - A EUROPEAN JOURNAL, Issue 18 2007Mercedes Alvaro Dr. Abstract Upon light excitation MOF-5 behaves as a semiconductor and undergoes charge separation (electrons and holes) decaying in the microsecond time scale. The actual conduction band energy value was estimated to be 0.2,V versus NHE with a band gap of 3.4,eV. Photoinduced electron transfer processes to viologen generates the corresponding viologen radical cation, while holes of MOF-5 oxidizes N,N,N,,N, -tetramethyl- p -phenylenediamine. One application investigated for MOF-5 as a semiconductor has been the shape-selective photocatalyzed degradation of phenol in aqueous solutions. [source] Scene-Graph-As-Bus: Collaboration between Heterogeneous Stand-alone 3-D Graphical ApplicationsCOMPUTER GRAPHICS FORUM, Issue 3 2000Bob Zeleznik We describe the Scene-Graph-As-Bus technique (SGAB), the first step in a staircase of solutions for sharing software components for virtual environments. The goals of SGAB are to allow, with minimal effort, independently-designed applications to share component functionality; and for multiple users to share applications designed for single users. This paper reports on the SGAB design for transparently conjoining different applications by unifying the state information contained in their scene graphs. SGAB monitors and maps changes in the local scene graph of one application to a neutral scene graph representation (NSG), distributes the NSG changes over the network to remote peer applications, and then maps the NSG changes to the local scene graph of the remote application. The fundamental contribution of SGAB is that both the local and remote applications can be completely unaware of each other; that is, both applications can interoperate without code or binary modification despite each having no knowledge of networking or interoperability. [source] NONPARAMETRIC BOOTSTRAP PROCEDURES FOR PREDICTIVE INFERENCE BASED ON RECURSIVE ESTIMATION SCHEMES,INTERNATIONAL ECONOMIC REVIEW, Issue 1 2007Valentina Corradi We introduce block bootstrap techniques that are (first order) valid in recursive estimation frameworks. Thereafter, we present two examples where predictive accuracy tests are made operational using our new bootstrap procedures. In one application, we outline a consistent test for out-of-sample nonlinear Granger causality, and in the other we outline a test for selecting among multiple alternative forecasting models, all of which are possibly misspecified. In a Monte Carlo investigation, we compare the finite sample properties of our block bootstrap procedures with the parametric bootstrap due to Kilian (Journal of Applied Econometrics 14 (1999), 491,510), within the context of encompassing and predictive accuracy tests. In the empirical illustration, it is found that unemployment has nonlinear marginal predictive content for inflation. [source] About one application of the general method of Lyapunov functionals constructionINTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL, Issue 9 2003V. Kolmanovskii Abstract Some peculiarities of the general method of Lyapunov functionals construction proposed and developed by the authors during last decade for stability investigation of stochastic hereditary systems are considered. It is shown, in particular, that using this method one can construct a sequence of extended stability regions for stochastic difference Volterra equations. Copyright © 2003 John Wiley & Sons, Ltd. [source] The impact of an insecticide on insect flower visitation and pollination in an agricultural landscapeAGRICULTURAL AND FOREST ENTOMOLOGY, Issue 3 2010Claire Brittain 1Pesticides are considered a threat to pollinators but little is known about the potential impacts of their widespread use on pollinators. Less still is known about the impacts on pollination, comprising the ecosystem service that pollinators provide to wildflowers and crops. 2The present study measured flower visitation and pollination in an agricultural landscape, by placing potted flowering plants (Petunia sp.) in vine fields sprayed with a highly toxic insecticide (fenitrothion). During two sampling rounds, insect visitors to the petunias were observed and measures of pollination were recorded by counting and weighing seeds. 3In the earlier sampling round, a lower species richness of insect visitors was observed in fields that had received an early application of insecticide. No negative impacts were found from later applications. The results obtained suggest a greater potential harm to insect pollinators and flower visitation as a result of insecticide application early in the season. 4No reduction in pollination was found in fields that received an early insecticide application. Pollination was greater with two insecticide applications between sampling rounds rather than one application. 5In the present study system, insecticide application had a negative effect on pollinators but a possible positive effect on pollination services. In some cases, it may be that actions for conserving biodiversity will not benefit pollination services to all plants. [source] Time-resolved contrast-enhanced imaging with isotropic resolution and broad coverage using an undersampled 3D projection trajectoryMAGNETIC RESONANCE IN MEDICINE, Issue 2 2002Andrew V. Barger Abstract Time-resolved contrast-enhanced 3D MR angiography (MRA) methods have gained in popularity but are still limited by the tradeoff between spatial and temporal resolution. A method is presented that greatly reduces this tradeoff by employing undersampled 3D projection reconstruction trajectories. The variable density k -space sampling intrinsic to this sequence is combined with temporal k -space interpolation to provide time frames as short as 4 s. This time resolution reduces the need for exact contrast timing while also providing dynamic information. Spatial resolution is determined primarily by the projection readout resolution and is thus isotropic across the FOV, which is also isotropic. Although undersampling the outer regions of k -space introduces aliased energy into the image, which may compromise resolution, this is not a limiting factor in high-contrast applications such as MRA. Results from phantom and volunteer studies are presented demonstrating isotropic resolution, broad coverage with an isotropic field of view (FOV), minimal projection reconstruction artifacts, and temporal information. In one application, a single breath-hold exam covering the entire pulmonary vasculature generates high-resolution, isotropic imaging volumes depicting the bolus passage. Magn Reson Med 48:297,305, 2002. © 2002 Wiley-Liss, Inc. [source] Slug control in Australian canola: monitoring, molluscicidal baits and economic thresholdsPEST MANAGEMENT SCIENCE (FORMERLY: PESTICIDE SCIENCE), Issue 9 2007Michael A Nash Abstract Exotic slugs have become serious pests of canola, at establishment, in Southern Australian high-rainfall cropping zones. Slugs were monitored using relatively inexpensive 300 mm × 300 mm terracotta tiles acting as refuges. An investigation was made of the effects of the time of application of chelated iron baits on the slug species Deroceras reticulatum Müller and Lehmannia nyctelia Bourguignat. Baits reduced the number of surface-active slug species. A single application at sowing provided greater efficacy than one application before sowing, and efficacy was comparable with that of two applications. Canola seedling densities showed a negative response to D. reticulatum numbers; the presence of even one individual per refuge trap reduced seedling numbers below optimum densities. Thistles and other vegetation were associated with increased numbers of slugs. European guidelines for slug monitoring and damage appear to be at least partly applicable to Australian conditions. Copyright © 2007 Society of Chemical Industry [source] Software validation for medical device manufacturingQUALITY ASSURANCE JOURNAL, Issue 4 2003Randy D. Jones Abstract The recent guidance on 21 CFR 11, the upcoming deadline for European CE Marking, and the needs of quality system regulation (QSR) have generated much discussion about approaches to software validation. In this article, a view of software validation by the design team of a QSR medical device manufacturer of precision glycohemoglobin/hemoglobin variant high performance liquid chromatography (HPLC) instrument platforms is provided. The software includes manufacturing, accounting and customer modules in one application. The unique aspect of this manufacturer's approach was to start with a risk analysis and a quality assurance audit plan to check software modules. The article also shows how a quality assurance unit should be prepared to contribute regulatory expertise for software validations that incorporate GMP, ICH, GLP, ISO and accounting standards. Copyright © 2003 John Wiley & Sons, Ltd. [source] Deviation inequality for monotonic Boolean functions with application to the number of k -cycles in a random graphRANDOM STRUCTURES AND ALGORITHMS, Issue 1 2004Dmitry PanchenkoArticle first published online: 31 OCT 200 Using Talagrand's concentration inequality on the discrete cube {0, 1}m we show that given a real-valued function Z(x) on {0, 1}m that satisfies certain monotonicity conditions one can control the deviations of Z(x) above its median by a local Lipschitz norm of Z at the point x. As one application, we obtain a deviation inequality for the number of k -cycles in a random graph. © 2003 Wiley Periodicals, Inc. Random Struct. Alg., 2004 [source] The First Teleautomatic Low-Voltage Prosthesis With Multiple Therapeutic Applications: A New Version of the German Artificial Sphincter SystemARTIFICIAL ORGANS, Issue 8 2010Olaf Ruthmann Abstract To date, there are no artificial sphincter prostheses for urinary or fecal incontinence that may be implemented elsewhere instead, for example, in the upper gastrointestinal tract. Conventional systems are conceptually similar but are constructed specifically for distinct applications and are manual in operation. The German Artificial Sphincter System (GASS) II is the evolution of a highly integrative, modular, telemetric sphincter prosthesis with more than one application. Redesigning and integrating multilayer actuators into the pump allows us to reduce the input voltage to ,10 to +20 V (VPP = 30 V). This provides for a flow rate of 2.23 mL/min and a counterpressure stability of 260 mbar. Furthermore, multiple applications have become feasible due to our standardized connection system, therapy-specific compression units, and application-specific software. These innovations allow us to integrate not only severe fecal and urinary incontinence, erectile dysfunction, and therapy-resistant reflux disease, but also morbid adiposity into the gamut of therapeutic GASS applications. [source] | ||||||||||||||||