351   Strain rate dependence of yield strength and long-term creep strength evaluation of ASME grade 91 steel Strain rate dependence of yield strength and long-term creep strength evaluation of ASME grade 91 steel    2010 Accuracy of long-term creep life prediction of creep strength enhanced ferritic steels is improved by region splitting analysis method in consideration of 50% of the 0.2% offset yield stress. According to JIS and ASTM standards for tensile test, however, specified strain rates for evaluation of yield strength are slightly different from each other. The conditions specified in JIS G0567 and ASTM E21-03a are 0.3 ± 0.2 %/min and 0.5 ± 0.2 %/min, respectively. Strain rate influences on... 查看全文

352   Rotational Multiple Yield Surface Framework and the prediction of stress-strain response for saturated and unsaturated soils Rotational Multiple Yield Surface Framework and the prediction of stress-strain response for saturated and unsaturated soils    2011 Anisotropic soil settlement model known as Rotational Multiple Yield Surface Framework characterises soil volume change behaviour from the standpoint of the soil stress-strain relationship. From the stress-strain relationship the soil mobilised shear strength behaviour in saturated and unsaturated conditions is derived in the form. of Mohr-Coulomb curved-surface envelope in the space of τ:(σ - ua) : (ua - uw). Then within this stress space the anisotropic volume change behaviour is cha... 查看全文

353   Effects of topically applied stannous fluoride and acidulated phosphate fluoride alone and in combination on dental plaque Effects of topically applied stannous fluoride and acidulated phosphate fluoride alone and in combination on dental plaque Richard E. Corpron, William H. Bowen, Jed S. Hand, Joan McGowan, Sharon L. Brooks and Nathaniel H. R    2006 A five-day study in 48 subjects, conducted in the absence of customary oral hygiene, measured the effects of a single topical application of stannous fluoride or acidulated phosphate fluoride alone or in a 1:1 combination. All fluoride concentrations were 1.25%. At the end of the study no effects on dental plaque and gingivitis were detected. During the study the flouride treatments, particularly those containing SnF2, temporarily restricted the ability of the saliva to lower the pH of a sucrose... 查看全文

354   Bed bugs can cause severe anaemia in adults Bed bugs can cause severe anaemia in adults Maria Paulke-Korinek, Marton Széll, Hermann Laferl, Herbert Auer;Christoph Wenisch    0 A 60-year-old woman and her 67-year-old male partner, admitted for pneumonia and non-ST elevation myocardial infarction, respectively, had severe anaemia (Hb 5.3 and 5.2 g/dL, respectively), as a result from massive infestation with Cimex lectularius. After two erythrocyte transfusions and thorough decontamination, their clinical course was unremarkable. 查看全文

355   Advances and prospects for strength theory Advances and prospects for strength theory    2004 Strength theory deals with the yield and failure of materials under complex stress state. Strength theory includes the yield criteria and failure criteria as well as the multi-axial fatigue criteria, multi-axial creep condition and material models in computational mechanics and computer codes, etc. It is an important foundation for researches on the strength of materials and structures. Strength theory is widely used in physics, mechanics, material science and engineering including civil, mechan... 查看全文

356   Beauveria bassiana pathogenicity to the cherry slugworm, Caliroa cerasi (Hymenoptera: Tenthredinidae) larvae Beauveria bassiana pathogenicity to the cherry slugworm, Caliroa cerasi (Hymenoptera: Tenthredinidae) larvae R. Aslantaş, C. Eken;R. Hayat    2008 The cherry slugworm Caliroa cerasi is a significant destructive pest of sour cherries (Prunus cerasus) in Turkey. The potential of entomopathogenic fungi for controlling C. cerasi was evaluated. The effects of exposure methods and conidial concentrations (1 × 106, 1.5 × 106, 1 × 107 and 1.5 × 107 conidia/ml) on mature larvae of C. cerasi infected by Beauveria bassiana were investigated under laboratory conditions. Larvae sprayed directly with B. bassia... 查看全文

357   Morphology and Kinematics of Langmuir−Blodgett Monolayers Morphology and Kinematics of Langmuir−Blodgett Monolayers Matthew R. Mazloff and Jie Yang*    2001 With fluorescence microscopy, we have found that monolayers of dipalmitoylphosphatidylcholine with a small concentration of dye lipids at an air/water interface always contain a number of membrane defects and domains in the liquid expanded phase. These features range in sizes from several micrometers to several millimeters. Furthermore, the fluorescence intensity of these monolayers exhibits a maximum at the full transition from the liquid expanded phase to the liquid condensed phase. At very lo... 查看全文

358   An investigation of the iterative reconstruction method iDose4 on a Philips CT Brilliance 64 using a Catphan 600 phantom An investigation of the iterative reconstruction method iDose4 on a Philips CT Brilliance 64 using a Catphan 600 phantom Marie-Louise Olsson    0 The number of CT examinations giving a relatively high patient exposure is increasing. It is therefore important to optimize the imaging conditions at these investigations. Many steps have been taken to reduce the radiation doses in CT examinations. Currently much work is related to iterative image reconstruction methods as alternative to the filtered back projection method. The aim of this work was to evaluate quality parameters in images from a CT (Philips Brilliance 64) equipped with the iter... 查看全文

359   Experimental research and prediction of yield strength for aging strengthened aluminium alloy Experimental research and prediction of yield strength for aging strengthened aluminium alloy    2009 Effects of ageing processes and parameters on microstructure and properties of 7A04 aluminum alloy were investigated by experiment and theoretical calculation, and an optimum two-step aging process was proposed. A mathematical model used to calculate yield strength of aluminium alloy, which describes the relationship between type, size and volume fraction of precipitate and yield strength of the materials was established, and a formula integrated the strengthening effects of solid solution and p... 查看全文

360   Copper-Catalyzed Asymmetric Allylic Substitution of Allyl Phosphates with Aryl- and Alkenylboronates† Copper-Catalyzed Asymmetric Allylic Substitution of Allyl Phosphates with Aryl- and Alkenylboronates† Xufeng Zhou, Sui Yang, Chengzhong Yu, Zhenhua Li, Xiaoxia Yan, Yong Cao and Dongyuan Zhao    2011 查看全文

361   Baseline susceptibility of persea mite (Acari: Tetranychidae) to abamectin and milbemectin in avocado groves in Southern California Baseline susceptibility of persea mite (Acari: Tetranychidae) to abamectin and milbemectin in avocado groves in Southern California Eduardo C. Humeres;Joseph G. Morse    2005 Persea mite, Oligonychus perseae Tuttle, Baker, and Abatiello, susceptibility to abamectin and milbemectin was evaluated in 2003 to determine baseline susceptibility levels in avocado groves in San Diego and Ventura Counties (California, USA) where more than 70% of the state’s avocado production is concentrated. Milbemectin has yet to be used in avocado production in California and abamectin has been available for use since 1999. Baseline susceptibility ratios (in relation to the most sus... 查看全文

362   Stable Fluorophosphines: Predicted and Realized Ligands for Catalysis† Stable Fluorophosphines: Predicted and Realized Ligands for Catalysis† Dr. Natalie Fey, Michael Garland, Dr. Jonathan P. Hopewell, Claire L. McMullin, Dr. Sergio Mastroian    2011 查看全文

363   Application of a deconvolution technique to enforce a-priori object constraints to 2-D IR speckle data Application of a deconvolution technique to enforce a-priori object constraints to 2-D IR speckle data Julian C. Christou    0 Recently, an iterative deconvolution algorithm has been priori object constraints on speckle interferometric data. This paper demonstrates its application to both simulated and real two-dimensional infrared speckle data and compares its performance to that of an iterative transform. algorithm. This iterative deconvolution algorithm differs from the iterative transform. algorithm in that the object's Fourier modulus, as well as the Fourier phases, is also constrained by the a priori information. 查看全文

364   The avifauna of Ibiza: an updated checklist including comments on abundances and ecology The avifauna of Ibiza: an updated checklist including comments on abundances and ecology Thomas Kellner, Mathias Krech, Axel Schulz, Carsten H. G. Müller, Kellner T, Krech M, Schulz A, C. H    0 updated checklist including comments on abundances and ecology. Rostocker 查看全文

365   UPDATING PLANS: A HISTORIOGRAPHY OF DECISIONS OVER TIME UPDATING PLANS: A HISTORIOGRAPHY OF DECISIONS OVER TIME Teller J, Billen R, Cutting-decelle A-f, Nikhil Kaza, Donovan Finn, Lewis D. Hopkins    0 SUMMARY: Plans provide information about how multiple decisions are structured over time, and what the intentions of a particular actor are. As and when these decisions get made, or not made, some parts of plans become irrelevant, while some other new relationships are discovered and considered. Recognising this provides a useful way to interpret the changes in plans by tracking the decisions and vice versa. In this paper, we illustrate the complexities of an ontology of urban systems which are ... 查看全文

366   List Update with Locality of Reference: MTF Outperforms All Other Algorithms List Update with Locality of Reference: MTF Outperforms All Other Algorithms Spyros Angelopoulos, Reza Dorrigiv, Alejandro López-ortiz    0 It has been observed that in practice, typical request sequences for the list update problem exhibit a certain degree of locality of reference. We first extend the locality of reference model for the paging problem due to Albers et al [STOC 2002/JCSS 2005] to the domain of list update; this addresses the open question of defining an appropriate model for capturing locality of reference in the context of list update [Hester and Hirschberg ACM Comp. Surv. 1985]. We then apply this model in conjunc... 查看全文

367   Yield strength of nitrogen alloyed duplex steels: hall-petch analysis and micromechanical predictions Yield strength of nitrogen alloyed duplex steels: hall-petch analysis and micromechanical predictions    1997 For the prediction of the yield strength of nitrogen alloyed ferritic-austenitic duplex steels, accurate knowledge on the single phases' yield strength and their geometrical arrangement within the duplex microstructure is required. Since the matrix-inclusion character of the phases markedly influences the yield strength σyd of duplex steels, linear models for σyd (Voigt-model) cannot serve for an accurate prediction of σyd. A non-linear rule of mixture, however, is a more sophi... 查看全文

368   Iterative maps for broadband excitation of transverse coherence in two level systems Iterative maps for broadband excitation of transverse coherence in two level systems H. Cho;A. Pines    0 An iterative scheme has been used to derive a pulse sequence, compensated for off‐resonance and rf inhomogeneity pulse errors, which implements a π/2 rotation of the spin density operator around a well‐defined axis in the transverse plane. A fixed point analysis is applied to this and other iterative schemes revealing the source and nature of the compensation. Contrasting features of the different schemes are uniquely revealed by this analysis. General considerations for the construction of iter 查看全文

369   Compositional Belief Update Compositional Belief Update James Delgrande, Yi Jin, Francis Jeffry Pelletier    0 In this paper we explore a class of belief update operators, in which the definition of the operator is compositional with respect to the sentence to be added. The goal is to provide an update operator that is intuitive, in that its definition is based on a recursive decomposition of the update sentence’s structure, and that may be reasonably implemented. In addressing update, we first provide a definition phrased in terms of the models of a knowledge base. While this operator satisfies a core g 查看全文

370   Self-reported mental problems in boys and girls: Preliminary findings Self-reported mental problems in boys and girls: Preliminary findings Ilana Navon, Amia Lieblich;Kalman Benyamini    1986 Previous research has reported higher frequency in boys than in girls of all psychopathological categories in childhood, and a reversal of the genders' ratio for adolescence and onwards. All studies about childhood mental health are based on referral by adults. The present study evaluated the prevalence of psychopathology in three age groups in childhood and adolescence, in both genders, using a new self-report scale of mental health problems for children and adolescents. Social desirability was... 查看全文

371   Bacterial (Bacillus thuringiensis subsp. thuringiensis and B. thuringiensis subsp. kurstaki) Entomocidal Preparations Decrease Chlorophyll Accumulation in Larch Needles Bacterial (Bacillus thuringiensis subsp. thuringiensis and B. thuringiensis subsp. kurstaki) Entomocidal Preparations Decrease Chlorophyll Accumulation in Larch Needles Mao Zijun, G. P. Burov, Shabanin Naghi;Yanhon Zoh    2003 Chlorophyll a plus b content and absorption spectra of the homogenates from the cotyledonary leaves of 30-day-old seedlings of two larch species, Larix gmelinii (Rupr.) Rupr. and L. sibirica Ldb. were studied. The seedlings were grown on Perlite containing aqueous solutions of entomocidal biopreparations isolated from Bacillus thuringiensis subsp. thuringiensis (bitoxybacillin) and B. thuringiensis subsp. kurstaki (lepidocide) at various final concentrations (2, 6, and 12 g/l). Changes in the fo... 查看全文

372   Photoreactivity of Alkylsiloxane Self-Assembled Monolayers on Silicon Oxide Surfaces Photoreactivity of Alkylsiloxane Self-Assembled Monolayers on Silicon Oxide Surfaces Tao Ye, Darren Wynn, Russell Dudek, and Eric Borguet*    2001 We have combined contact angle measurements, Fourier transform. infrared spectroscopy (FT-IR), and atomic force microscopy (AFM) to investigate the UV photoreactivity of octadecylsiloxane (ODS) SAMs (self-assembled monolayers) in air. Contact angle measurements present evidence that ozone is not the active agent in alkylsiloxane SAM degradation under UV illumination in air. A combination of UV and oxygen is necessary for monolayer degradation to proceed. AFM measurements on submonolayer coverage... 查看全文

373   The role played by self-inhibition in combustion processes The role played by self-inhibition in combustion processes V. V. Azatyan, I. A. Bolod’yan, Yu. N. Shebeko, V. Yu. Navtsenya;A. Yu. Shebeko    2006 The absence of correlations between the heat of combustion of substances and substance combustion characteristics is shown to be caused by the special features of competition between reaction chain branching and termination, including partial participation of fuels in the inhibition of their oxidation. By way of example, differences in the characteristics of combustion of hydrocarbons and hydrogen at atmospheric pressure and the mechanisms of the development of chain aval... 查看全文

374   Solid-State 13C NMR Analyses of the Orthorhombic-to-Hexagonal Phase Transition for Constrained Ultradrawn Polyethylene Fibers Solid-State 13C NMR Analyses of the Orthorhombic-to-Hexagonal Phase Transition for Constrained Ultradrawn Polyethylene Fibers Kazuhiro Kuwabara and Fumitaka Horii*    1999 The orthorhombic-to-hexagonal phase transition for constrained ultradrawn polyethylene fibers has been investigated by solid-state 13C NMR spectroscopy. In the CP/MAS 13C NMR spectra, the resonance line assignable to CH2 carbons in the hexagonal phase appears above 147 °C upfield compared to the line in the orthorhombic phase. The calculation of the 13C chemical shift has revealed that 7% gauche defects are included in the hexagonal phase. In the CP/DD 13C NMR spectra measured by setting the or... 查看全文

375   Optimization with neural memory for process parameter estimation Optimization with neural memory for process parameter estimation Wendy Foslien    0 The speed and accuracy of convergence of iterative optimization algorithms often depend critically upon the choice of a starting point. With a near optimum starting point, both speed and accuracy can be improved. A two step approach to optimization has been developed which utilizes the feedforward predictive capability of a neural network in conjunction with the feedback capability of an iterative optimization algorithm. This approach is taken in order to improve the speed of the iterative optim... 查看全文

376   Determination of fluoride release from light-cured glass-ionomers and a fluoridated composite resin from the viewpoint of curing time Determination of fluoride release from light-cured glass-ionomers and a fluoridated composite resin from the viewpoint of curing time Dr. A. Gaffar, J. C. Blake-Haskins, R. Sullivan, A. Simone, R. Schmidt and F. Saunders    2007 summary The purpose of this study was to investigate the fluoride releasing pattern of several visible light-curing glass-ionomers and one fluoride-containing filling material, from the viewpoint of curing time. Standardized blocks of Time Line (Caulk-USA), XR-Ionomer (Kerr-USA), Vitrebond (3M-USA) and Heliomolar-Ro (Vivadent-Lichtenstein) were light cured for 20, 40 and 60 s, and then stored in deionized distilled water at 37°C for 24, 48, 72 h and 7 days. The water was changed every day an... 查看全文

377   Autodissemination of Semiochemicals and Pesticides: a New Concept Compatible with the Sterile Insect Technique Autodissemination of Semiochemicals and Pesticides: a New Concept Compatible with the Sterile Insect Technique P. Howse, C. Armsworth;I. Baxter    0 ExoSex technology utilizes inert particles of materials that have the ability to adhere to the arthropod cuticle. The ExoSex AutoconfusionTM system has been developed as an insect control method that differs from all other mating disruption systems in contaminating the target pest with electrostatically chargeable powder formulated with pheromone. The technique has now been evaluated in the field against a range of lepidopteran species, including the codling moth Cydia po... 查看全文

378   Acidogenesis in relation to fluoride resistance of Streptococcus mutans Acidogenesis in relation to fluoride resistance of Streptococcus mutans    2007 The velocity of acid production (Vap) of Streptococcus mutans C180-2 and of 2 fluoride-resistant mutant strains S. mutans C180-2FR and S. mutans C180-2MFR was examined in vitro at pH values between 7.0 and 4.5. The Vap of the fluoride-resistant mutants was lower than the Vap of the parent strain at pH ≥6.0. At pH 5.5 and 5.0, the Vap of the mutant strains was higher than the Vap of the parent strain, whereas at pH 4.5 no significant differences were observed between the Vap of the 3 strains. ... 查看全文

379   Augmentative biological control of whiteflies using transplants Augmentative biological control of whiteflies using transplants Charles Pickett, Gregory Simmons, Enrique Lozano;John Goolsby    2004 Field studies showed that transplants can be used to move parasitoids into fields of commercially grown cantaloupe, Cucumis melo (Cucurbitaceae), and augment parasitism of sweet potato whitefly, Bemisia tabaci biotype B (= Bemisia argentifolii) (Homoptera: Aleyrodidae). Methods were developed to inoculate cantaloupe seedlings with newly imported Eretmocerus spp. (Hymenoptera: Aphelinidae), then transfer plants into both organic and conventional fields of cantaloupe in the desert growing region o... 查看全文

380   Dehydrogenation of AlH3 via Vacancy Clustering Mechanism Dehydrogenation of AlH3 via Vacancy Clustering Mechanism Lars Ismer, Anderson Janotti, and Chris G. Van de Walle    2012 We present a kinetic model, based on a combination of first-principles calculations and Kinetic Monte Carlo simulations, that accurately describes the dehydrogenation process of AlH3. Hybrid density functional calculations show that hydrogen vacancy defects which form. in the AlH3 crystal under dehydrogenation conditions have a strong tendency towards clustering, with a binding energy of 0.5 to 1.6 eV. Vacancy clusters of sizes ranging from 2 to 12 are analyzed. The clusters establish the nuclei... 查看全文

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