105,602 research outputs found
Decision Support Systems for Truck Route Modelling (D-TRM)
No full textSince the 1970‟s Decision Support Systems (DSS) have become popular following the development in computer technology. A DSS aims to support in the solving of specific problems with both human and computer techniques. The purpose of this research was to design and develop a DSS for application involved with the cost calculations and revenue calculations of contracted timber haulage in Ireland
Investigating sentence weighting components for automatic summarisation
No full textThe work described here initially formed part of a triangulation exercise to establish the effectiveness of the Query Term Order algorithm. The methodology produced subsequently proved to be a reliable indicator of quality for summarising English web documents. We utilised the human summaries from the Document Understanding Conference data, and generated queries automatically for testing the QTO algorithm. Six sentence weighting schemes that made use of Query Term Frequency and QTO were constructed to produce system summaries, and this paper explains the process of combining and balancing the weighting components. We also examined the five automatically generated query terms in their different permutations to check if the automatic generation of query terms resulting bias. The summaries produced were evaluated by the ROUGE-1 metric, and the results showed that using QTO in a weighting combination resulted in the best performance. We also found that using a combination of more weighting components always produced improved performance compared to any single weighting component
CRYSTAL TO GLASS TRANSFORMATIONS IN SIMPLE SALT SYSTEMS
No full textG. Pollard, N. Smyrl, and J. P. Devlin, J. Phys. Chem. 76, 1826 (1972).Author Institution: Department of Chemistry, Oklahoma State UniversityIt has been shown that the glass phase of many simple salts (nitrates, chlorates, etc.) can be formed by condensing the molten salt vapors at low Admission of proportionate quantities of water vapor during the deposition of vapors permits formation of glassy solutions which crystallize at , forming a crystalline hydrate. The warming of the crystal hydrate in vacuo results in a loss of water at with the formation of the anhydrous glass, which eventually crystallizes to the stable anhydrous salt at . Spectra that are representative of the phases involved, and which provide evidence for the unusual crystal-to-glass transformation will be discussed
The selective inhibition of serpin aggregation by the molecular chaperone, alpha-crystallin, indicates a nucleation-dependent specificity
No full textCopyright © 2003 by the American Society for Biochemistry and Molecular Biology.Glyn L. Devlin, John A. Carver and Stephen P. Bottomle
VIBRATIONAL SPECTRA OF AND ISOLATED IN AND (S): PROTON TRANSFER RATES IN HYDROGEN BONDED SOLIDS
No full textG. Ritzhaupt and J. P. Devlin, J. Chem. Physics 67, 4779 (1977). G. Ritzhaupt, C. Thornton, and J. P. Devlin, Chem. Phys. Lett. 59, 420 (1978). M. G. Sceats. M. Stavola, and S. A. Rice, private communication.Author Institution:Recent studies have shown that proton transfer processes cease at low temperatures in and . Consequently, it is possible, via a matrix isolation approach to isolate molecules such as and , intact, in otherwise pure glassy or crystalline and . has been studied isolated in amorphous and crystalline where decoupling of the vibrational modes has permitted evaluation of the relative importance of correlation field effects, the coupling of intramolecular bond oscillators and Fermi resonance similar decoupling results are now available for in showing that the correlation field effects are small and nearly of magnitude less than for crystalline or amorphous . These results will be presented together with spectroscopically determined proton exchange rates and conclusions regarding energy barriers and mechanisms for proton exchange
The Interaction of HCl and Crystalline Ice Clusters at Cryogenic Temperatures: Evidence of the Molecular Complex
No full text1. Lance Delzeit, Brad Rowland, and J. Paul Devlin; J. Phys. Chem. 97 10312 (1993). 2. B. S. Ault and G. C. Pimentel; J. Phys. Chem. 77 57 (1973). 3. A. Schriver, et. al.; J. Phys. Chem. 87 2095 (1977). 4. G. Kroes and D. C. Clary; J. Phys. Chem. 96 7079 (1992). 5. Brad Rowland, Mark Fisher, and J. Paul Devlin; J. Chem. Phys. 95 1378 (1991).Author Institution: Oklahoma State University, Stillwater, OK 74078The addition of HCl to the surface of crystalline ice clusters at cryogenic temperatures produces spectroscopic changes which can be related to the formation of the hydronium ion and the HCl acting as a molecular adsorbate. The hydronium ion is identified from its IR active modes below . Evidence for the HCl acting as a molecular adsorbate is its effect on the dangling-hydrogen (d-H) mode and the appearance of a band. Analogous spectra for with the and the show two bands relative to the one band in the region due to the interaction. The single band in the HCl system is attributed to the near overlap of the bands due to the molecular and ionic interaction of the HCl and . Reference to matrix and computational will show the plausibility of the presence of the molecular complex. Shifting of the d-H band is a common effect for molecularly adsorbed species on the surface of The shifting of the d-H to a position yet unobserved for common adsorbates gives strong evidence of the HCl acting as a molecular adsorbate
Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung
No full textDieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Aerobic granular sludge: State of the art, applications, and new perspectives.
No full textThe aerobic granular sludge (AGS) process has attracted significant interest over the last decade and is one of the most promising wastewater treatment technologies. AGS offers several advantages over conventional activated sludge (CAS) including excellent settling, and higher volumetric loading capacity. Because of porosity, concentration gradients develop and stratified aerobic, anoxic, and anaerobic layers develop throughout granule depth. This is the reason for simultaneous nutrient removal in a single tank. Aerobic granulation is influenced by many parameters including wastewater characteristics and operating conditions. Among these, the anaerobic upflow feeding strategy and a properly balanced feast/famine regime have most significantly influenced granule stability and nutrient removal efficiency. Hydraulic shear forces can improve the physical characteristics of the granules, whereas selective wasting also allows undesirable biomass with low density to be washed out. Implementation of AGS in full-scale requires some important retrofitting, including adequate grit and particulate organics removal from the wastewater. Furthermore, aerobic granular sludge cycles should be designed with flexibility to address variable influent loads. Considerations include equalization and flow balancing, dissolved oxygen control strategies, multiple draw points for selective wasting and swing-capabilities. Several studies and full-scale implementations have demonstrated that AGS is suited for the treatment of a wide variety of industrial wastewaters, as well as municipal wastewater. Full-scale implementations of AGS treating municipal wastewater have improved process stability, attained more stringent effluent quality (i.e., total nitrogen (TN) <5 mg/L; total phosphorus (TP) <0.3 mg/L), resulting in 30% to 60% energy savings compared with CAS
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