bluuebunny/crossref_metadata_2025_split huggingface dataset:
Corresponding states correlation of saturated and metastable properties
Authors: Dong Wei‐Guo , Lienhard John H. 
Published: March 2009

AbstractA corresponding states correlation is developed for the p ‐ v ‐ T properties of saturated liquids. It is similar in form to a previous correlation; however it is more accurate in the low pressure, low Pitzer factor range, owing to the incorporation of new information about low Pitzer factor behavior. The problem of creating corresponding states correlations of the spinodal lines and the metastable states is also discussed in the light of new equation of state information. A partial preliminary correlation works particularly well for non‐polar molecules in the range of fairly small positive Pitzer factors.
Elutriation characteristics of solids from liquid–solid fluidized bed systems Part III: A study of the possible causes of non‐linearity in the elutriation of fine particles from fluidized beds
Authors: Ganguly U. P. 
Published: March 2009

AbstractThe “critical concentration” of solids, defined by Trawinski as the break‐point from linearity in the plot of log (C/Co) versus θ in any elutriation process, represents the attainment of a sudden increase in bed viscosity which finally leads to a retentive capacity of the bed with respect to the fines, characterized by the “equilibrium bed concentration”, CE.Experimental data on Cc have been correlated empirically with various system parameters as

The ranges of the parameters are 1.1 ≤ G/Gme ≤ 1.4; 1.28 ≤ d1/d2 ≤ 2.85; 1.0 ≤ ρ1/ρ2 ≤ 2.6; 0.50 ≤ w/W ≤ 0.90; and 2.7 ≤ Ha/Hs ≤ 17.7.
Flooding in inclined pipes — Effect of entrance section
Authors: Barnea D. , Yoseph N. Ben , Taitel Y. 
Published: March 2009

AbstractFlooding in countercurrent flow of air and water in inclined tubes has been investigated. Data on flooding inception in the whole range of inclinations have been collected and predictive models for calculating the flooding conditions as a function of the flow rates and pipe inclination were proposed.Special attention is placed on the effect of the liquid injection mode. It has been shown that the porous injection system causes a local disturbance and enhances flooding at relatively shallow inclinations and high liquid flow rates.
Absorption of sulfur dioxide and nitric oxide by some amines and N‐cyclohexyl‐2‐pyrrolidone
Authors: Ho Moses P. , Klinzing George E. 
Published: March 2009

AbstractIn searching for solvents that are able to absorb sulfur dioxide and nitric oxide, solvents triethylenetetramine, diethylenetriamine, N‐cyclohexyl‐2‐pyrrolidone and N, N, N', N'‐tetraethylethylenediamine have all been tested. It was found that triethylenetetramine and N, N, N', N'‐tetraethylethylenediamine absorb nitric oxide, while this gas is not absorbed by N‐cyclohexyl‐2‐pyrrolidone and diethylenetriamine. Sulfur dioxide, besides being absorbed by triethylenetetramine, is also absorbed by diethylenetriamine and N‐cyclohexyl‐2‐pyrrolidone.The Henry's law constants and activity coefficients at infinite dilution of the gases in the absorbing solvents were determined by gas‐liquid chromatography.
Model for phase equilibria correlation and prediction. Characteristics and application to binary liquid—vapor and binary, ternary and quaternary liquid—liquid equilibria
Authors: Beviá F. Ruiz , Zapata R. Ruiz , Gomis A. F. Marcilla , Rico D. Prats 
Published: March 2009

AbstractA new model for the excess Gibbs energy has been developed. The model has three binary parameters. The presence of the third parameter, kij, the power of the composition, gives to the model an extraordinary flexibility. The model has been widely tested for different types of equilibria, such as binary liquid‐vapour equilibria, both isothermal and isobarid; as well as on liquid‐liquid equilibria, binary, ternary and quaternary, for both correlation and prediction. Results obtained for the average errors were always lower than those obtained by the Van Laar, Wilson and UNIQUAC models, and even by a three parameter model such as NRTL.
Long‐term transients in a reactor under forced concentration cycling
Authors: Hugo A. J. , Jakelski D. M. , Stanitsas G. , Sullivan G. R. , Hudgins R. R. , Silveston P. L. 
Published: March 2009

AbstractIn the approach to a cycle‐invariant state in the forced feed concentration cycling of the CO oxidation over a NiO catalyst, a very long transient has been observed lasting 80 ks or more. This transient appears to be associated only with CO pretreatment of the catalyst and is not a general phenomenon. The slow convergence to the cycle‐invariant state reported in certain modelling calculations in the literature appears to have a different cause.
A theoretical analysis on stability of a moving interface in a porous medium for bingham displacing fluids and its application in oil displacement mechanism
Authors: Pascal H. 
Published: March 2009

AbstractThis paper deals specifically with the illustration of the rheological effects of non‐Newtonian behaviour of the displacing fluid in a radial displacement mechanism in a porous medium. As an example, a Bingham displacing fluid is considered. For this case the necessary and sufficient conditions for stability are derived and discussed. The results obtained are relevant for an adequate understanding of the rheological effects associated with Bingham displacing fluids on the moving interface stability. The existence of a critical value for the interface location from which the interface protuberances begin to damp out is shown.
Errors caused by tracer solubility in the measurement of gas phase axial dispersion
Authors: Joseph S. , Shah Y. T. 
Published: March 2009

AbstractGas phase dispersion studies in bubble columns have been previously analyzed with the axial dispersion model neglecting the solubility of the tracer gas. In the present study, the effect of the solubility of the tracer gas on the accuracy of dispersion measurements is examined using the axial dispersion model with interphase transfer. Expressions for the first and second moments have been derived assuming the liquid phase to be well mixed. These moments are found to be functions of the Stanton number, Peclet number, Henry's constant, ratios of gas to liquid holdups and velocities. It is found that neglecting the interphase transfer can lead to significant deviations from the expected moments, and thus to errors in the Peclet number, even for a relatively insoluble gas like helium in water.
Gas holdup and pressure drop for air‐water flow through plate bubble columns
Authors: Chen B. H. , Yang N. S. , Mcmillan A. F. 
Published: March 2009

AbstractGas holdup and pressure drop measurements were made in two multistage bubble columns. Plates made from 6 mesh/in screen (α = 0.64) and those of Karr design (α = 0.53) were tested. An improved separated‐flow model was developed for correlating the two‐phase friction losses over the ranges: 0 ≤ VG ≤ 8.22 cm/s and 0 ≤ VL ≤ 6.12 cm/s. This model was also sound for the vibrating disk column introduced by Tojo et al. (1974).Empirical correlations are presented for the gas holdup and the pressure drop due to liquid circulation within these two columns.
Solvent extraction of hydrofluosilicic acid with alamine 336
Authors: Stenström Stig , Wingefors Stig 
Published: March 2009

AbstractExtraction constants for the solvent extraction of hydrofluosilicic acid with Alamine 336 have been determined. Two species were identified, (R3NH+ )2 SiF62‐ and R3NH+ HSiF6, whose respective extraction constants were determined to be log K21 = 7.42 and log K11 = 2.60. For the dissociation of hydrofluosilicic acid the activity coefficient model presented by Bromley was adapted to sulphuric acid and the values used for hydrofluosilicic acid. The effect of the diluent was experimentally investigated.
Initial rate study on the vapor‐phase condensation of aniline to diphenylamine
Authors: Das Gautam , Biswas Asok K. 
Published: March 2009

AbstractThe vapor‐phase condensation of aniline to diphenylamine has been studied in a downflow differential reactor at 370–426°C and under atmospheric pressure using H‐151 ALCOA catalyst. An initial rate equation based on the Langmuir‐Hinshelwood model, i.e. surface reaction control with a similar dual site mechanism, has been proposed:ro = (k1KA2pAo2)/ (1 + KApAo)2The effects of different mass transfer resistances, of longitudinal and of radial dispersion have been taken into consideration. The rate constant value at 404°C is 1.488 × 10−7 (k mol)/ (s) (kg cat) [5.358 × 10−4 (mol)/ (h) (g cat)] and the activation energy is calculated to be 123.3 kJ/mol [29.45 k cal/mol] in the working temperature range.
Excess enthalpy data for the ternary system methane—ethylene—carbon dioxide by flow calorimetry
Authors: Gagné Carol , Kaliaguine Serge C. , Ramalho Rubens S. 
Published: March 2009

AbstractExcess enthalpy data for the ternary system methane – ethylene – carbon dioxide was obtained utilizing an isothermal flow calorimeter. The measurements were made at three temperatures: 293.15, 305.15 and 313.15 K and pressures of 1.114, 1.520 and 3.445 MPa (11, 15 and 34 atm).The determination of excess enthalpies for the binary systems methane—ethylene, ethylene—carbon dioxide and methane—carbon dioxide has been reported in three preceeding articles, respectively: Gagné et al., 1985; Ba et al., 1979 and Barry et al., 1982a. The binary interaction coefficients kij obtained for these systems have been utilized as initial values for the optimization procedure leading to the kij for the ternary system. For the case of the ternary system studied in this investigation, two types of binary interaction coefficients kij have been determined from experimental data: kij independent of temperature and pressure and kij adjusted as function of temperature and pressure.Experimental data were compared with the predictions from Benedict—Webb—Rubin and Redlich—Kwong equations of state. In both cases, the coefficients kij dependent on temperature and pressure led to better prediction of excess enthalpies.
Effect of temperature on flow regimes and gas hold‐up in a bubble column
Authors: Grover G. S. , Rode C. V. , Chaudhari R. V. 
Published: March 2009

AbstractThe effect of temperature on the gas hold‐up and flow regimes for air—water and air—electrolyte solutions (NaCl and CuCl2) was studied in a bubble column with a sintered glass disc distributor. For the air—water system, the gas hold‐up was found to decrease with increase in temperature. For the air—electrolyte solutions, increase in temperature resulted in increased gas hold‐up at lower gas velocity, while at higher gas velocity the gas hold‐up was found to decrease with temperature. The gas velocity ugT for transition from bubble flow to churn turbulent flow was found to decrease with increase in temperature as a result of increased coalescence. In the presence of electrolytes, ugT was found to be higher than that for water.
Continuous production of penicillin‐g by penicillium chrysogenum cells immobilized on celite biocatalyst support particles
Authors: Jones Alan , Wood Denise N. , Razniewska Theresa , Gaucher G. Maurice , Behie Leo A. 
Published: March 2009

AbstractCelite R‐630, a commercially available catalyst support, was used successfully in the batch and continuous production of Penicillin‐G by mycelial cells of Penicillium chrysogenum. As an extension of previous work, the productivity of a 1.2 L three phase fluidized bed bioreactor using the Celite support was compared directly with the same reactor in which cells had been immobilized inside a larger carrageenan support matrix. With Celite particles, maximum yields and specific reaction rates for continuous reactor runs were 0.11 g Pen‐G (K+)/g lactose and 0.05 mmol Pen‐G/h/g protein respectively. These results were similar to those obtained with carrageenan beads. However, on a reactor volume basis, Celite was five times more productive than carrageenan. Results are discussed in terms of the potential for using Celite in industrial bioreactor systems.
Combinatorial Library Synthesis and Biological Evaluation of Pyrazolo[4,3‐e][1,4]diazepine as a Potential Privileged Structure
Authors: Lee Ju‐Yeon , Kim Yong‐Chul 
Published: March 2009

AbstractA privileged structure: A library of tetrahydro‐1,4‐pyrazolo‐diazepin‐8(2H)‐ones was designed and synthesized to probe the privileged nature of the scaffold. The design strategy included mimicking the three‐dimensional conformations of β‐turn peptides. Screening against P2X7R, BACE‐1, and MC4R gave several hit compounds for each target. The results suggest that pyrazolodiazepin‐8‐one may represent a potential privileged scaffold.magnified image
The role of macrophage inhibitory factor in tumorigenesis and central nervous system tumors
Authors: Bach Jan‐Philipp , Deuster Oliver , Balzer‐Geldsetzer Monika , Meyer Bernhard , Dodel Richard , Bacher Michael 
Published: March 2009

AbstractMacrophage migration inhibitory factor (MIF) has been described as a protein that plays an important role in both innate and acquired immunity. Further research has shown that MIF plays a particularly critical part in cell cycle regulation and therefore in tumorigenesis as well. Over the past few years, the significance of the role of MIF in a variety of both solid and hematologic tumors has been established. More recently, interest has increased in the role of MIF in the development of central nervous system (CNS) tumors, in which it appears to influence cell cycle control. In addition, MIF has been identified as an essential actor in metastasis and angiogenesis. Vascular growth factor concentration raises because of increased levels of MIF in brain tumors. Recently, the MIF receptor complex has been described, and it appears that this may be a suitable drug target for treatment of brain tumors. In light of these findings, the authors chose to conduct a systematic search for information regarding MIF that has been published within the past 15 years using the terms “inflammation,” “glioblastoma,” “brain tumor,” “astrocytoma,” “microglia,” “glioblastoma,” “immune system and brain tumors,” “glioblastoma and MIF,” and “brain tumor and MIF.” The aim of this article was thus to present a detailed review of current knowledge regarding the role of MIF in CNS tumor pathophysiology. Cancer 2009. © 2009 American Cancer Society.
Educational outcomes among survivors of childhood cancer in British Columbia, Canada
Authors: Lorenzi Maria , McMillan Amy J. , Siegel Linda S. , Zumbo Bruno D. , Glickman Victor , Spinelli John J. , Goddard Karen J. , Pritchard Sheila L. , Rogers Paul C. , McBride Mary L. 
Published: March 2009

AbstractBACKGROUND:Increased survival of patients with childhood cancer has resulted in a growing population of survivors within the education system, many of whom may experience educational difficulties. The current study provides a comprehensive assessment of survivors' educational achievements.METHODS:Seven hundred eighty‐two childhood cancer survivors from the British Columbia (BC) Cancer Registry who attended BC schools from 1995 to 2004, were compared with a randomly selected comparison group of 8386 BC school children. Grade repetition, standard Foundation Skills Assessments (FSA), graduation‐year examinations, and special education designations were compared, and factors that affected survivors' educational outcomes were identified.RESULTS:Survivors of central nervous system tumors had statistically significant FSA deficits in numeracy and reading (adjusted odds ratios from 0.2 to 0.5 in various grades); leukemia survivors also had lower FSA scores, although most differences were not statistically significant. Other survivors demonstrated no significant differences in FSA scores. Survivors were significantly more likely than controls to receive special education (32.5% vs 14.1%). Females and those who had received radiation treatment (particularly cranial radiation) were at increased risk for poor educational outcomes.CONCLUSIONS:The current results have implications for the management of survivors in the education system to maximize their educational experience. Cancer 2009. © 2009 American Cancer Society.
A high‐performance face detection system using OpenMP
Authors: Hadjidoukas P. E. , Dimakopoulos V. V. , Delakis M. , Garcia C. 
Published: March 2009

AbstractWe present the development of a novel high‐performance face detection system using a neural network‐based classification algorithm and an efficient parallelization with OpenMP. We discuss the design of the system in detail along with experimental assessment. Our parallelization strategy starts with one level of threads and moves to the exploitation of nested parallel regions in order to further improve, by up to 19%, the image‐processing capability. The presented system is able to process images in real time (38 images/sec) by sustaining almost linear speedups on a system with a quad‐core processor and a particular OpenMP runtime library. Copyright © 2009 John Wiley & Sons, Ltd.
Summary of ‘Systemic antifungal therapy for tinea capitis in children’, including tables of key findings and quality of included trials
Authors: Gonzalez U. , Seaton T. , Bergus G. , Jacobson J. , Martínez‐Monzón C. 
Published: March 2009

AbstractThis is a summary, including tables of key findings and quality of included trials of a Cochrane review, published in this issue of EBCH, first published as: Gonzalez U, Seaton T, Bergus G, Jacobson J, Martínez‐Monzón C. Systemic antifungal therapy for tinea capitis in children. Cochrane Database of Systematic Reviews 2007, Issue 4. Art No.: CD004685.DOI:10.1002/14651858.CD004685.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Commentary. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Summary of ‘Modes of administration for antibiotics for symptomatic severe urinary tract infections’, including tables of key findings and quality of included trials
Authors: Pohl A. 
Published: March 2009

AbstractThis is a summary, including tables of key findings and quality of included trials of a Cochrane review, published in this issue of EBCH, first published as: Pohl A. Modes of administration of antibiotics for symptomatic severe urinary tract infections. Cochrane Database of Systematic Reviews 2007, Issue 4. Art. No.: CD003237. DOI: 10.1002/14651858.CD003237.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Commentary. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Summary of ‘Interventions for treating wrist fractures in children’, including tables of key findings and quality of included trials
Authors: Abraham A. , Handoll H. H. G. , Khan T. 
Published: March 2009

AbstractThis is a summary, including tables of key findings and quality of included trials of a Cochrane review, published in this issue of EBCH, first published as: Abraham A, Handoll HHG, Khan T. Interventions for treating wrist fractures in children. Cochrane Database of Systematic Reviews 2008, Issue 2. Art. No.: CD004576. DOI: 10.1002/14651858.CD004576.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Commentary. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Summary of ‘Fluid therapy for acute bacterial meningitis’, including tables of key findings and quality of included trials
Authors: Maconochie Ian K. , Baumer J. Harry , Stewart Morwenna 
Published: March 2009

AbstractThis is a summary, including tables of key findings and quality of included trials of a Cochrane review, published in this issue of EBCH, first published as: Maconochie IK, Baumer JH, Stewart M. Fluid therapy for acute bacterial meningitis. Cochrane Database of Systematic Reviews 2008, Issue 1. Art. No.: CD004786. DOI: 10.1002/14651858.CD004786.pub3.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Commentary. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Commentary on ‘Interventions for treating wrist fractures in children’
Authors: Plint Amy C. , Boutis Kathy 
Published: March 2009

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, first published as: Abraham A, Handoll HH, Khan T. Interventions for treating wrist fractures in children. Cochrane Database of Systematic Reviews 2008, Issue 2. Art No.: CD004576. DOI: 10.1002/14651858.CD004576.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Summary article. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Commentary on ‘Systemic antifungal therapy for tinea capitis in children’
Authors: Ali Samina , Graham Timothy A. D. , Forgie Sarah E. D. 
Published: March 2009

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, first published as: Gonzalez U, Seaton T, Bergus G, Jacobson J, Martinez‐Monzon C. Systemic antifungal therapy for tinea capitis in children. Cochrane Database of Systematic Reviews 2007, Issue 4. Art No.: CD004685.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Summary article. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Commentaries on ‘Short‐course versus long‐course antibiotic therapy for non‐severe community‐acquired pneumonia in children aged 2 months to 59 months’
Authors: Le Saux Nicole , Davies H. Dele 
Published: March 2009

AbstractThese are commentaries on a Cochrane review, published in this issue of EBCH, first published as: Haider BA, Saeed MA, Bhutta ZA. Short‐course versus long‐course antibiotic therapy for non‐severe community‐acquired pneumonia in children aged 2 months to 59 months. Cochrane Database of Systematic Reviews 2008, Issue 2. Art. No.: CD005976. DOI: 10.1002/14651858.CD005976.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Summary article. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Tips and tricks for understanding and using SR results—no 13: adverse effects in systematic reviews
Authors: Kremer Leontien C. M. , Phillips Robert S. , van Dalen Elvira C. 
Published: March 2009

AbstractThis is the 13th ‘Tips and tricks for understanding and using SR results’ in Evidence‐Based Child Health. Like the previous articles, it is aimed at helping readers to understand the results of systematic reviews and to use the results in clinical practice. This time, we focus on adverse effects in systematic reviews. The information in this article is based on earlier papers, the Cochrane Handbook, and the collective experience of the authors in teaching evidence‐based medicine. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Commentary on ‘Modes of administration of antibiotics for symptomatic severe urinary tract infections’
Authors: Paschke Amanda A. , Zaoutis Theoklis , Keren Ron 
Published: March 2009

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, first published as: Pohl A. Modes of administration of antibiotics for symptomatic severe urinary tract infections. Cochrane Database of Systematic Reviews 2007, Issue 4. Art. No.: CD003237. DOI: 10.1002/14 651 858.CD003237.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Summary article. Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration