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  • Open Access

    BOOK REVIEW

    Winning the Battle Against Prostate Cancer: Get the Treatment that is Right for You, 2nd Edition

    Gerald Chodak

    Canadian Journal of Urology, Vol.21, No.6, pp. 7517-7517, 2014

    Abstract This article has no abstract. More >

  • Open Access

    ARTICLE

    Characteristics and outcomes of men who fail to leak on intubated urodynamics prior to artificial urinary sphincter placement

    Steven J. Weissbart, Karl Coutinho, Bilal Chughtai, Jaspreet S. Sandhu

    Canadian Journal of Urology, Vol.21, No.6, pp. 7560-7564, 2014

    Abstract Introduction: To report the characteristics and anti-incontinence outcomes of men who fail to demonstrate incontinence on intubated urodynamics (UDS).
    Materials and methods: From 2005 to 2013, the records of men who underwent UDS prior to artificial urinary sphincter (AUS) were reviewed. The histories, UDS, endoscopies, and anti-incontinence outcomes of men who failed to demonstrate incontinence on intubated UDS were recorded. In our UDS protocol, the urodynamic urethral catheter was removed and the UDS was repeated to elicit incontinence without the urethral catheter. The valsalva leak point pressure (VLPP) was obtained via the rectal catheter in these men.
    Results:More >

  • Open Access

    ARTICLE

    EFFECT OF WALL THERMAL CONDUCTIVITY ON MICRO-SCALE COMBUSTION CHARACTERISTICS OF HYDROGEN-AIR MIXTURES WITH DETAILED CHEMICAL KINETIC MECHANISMS IN Pt/γ-Al2O3 CATALYTIC MICRO-COMBUSTORS

    Junjie Chen*, Longfei Yan, Wenya Song

    Frontiers in Heat and Mass Transfer, Vol.5, pp. 1-6, 2014, DOI:10.5098/hmt.5.16

    Abstract To understand the effect of different thermal conductivities on catalytic combustion characteristics, effect of thermal conductivity on micro-combustion characteristics of hydrogen-air mixtures in Pt/γ-Al2O3 catalytic micro-combustors were investigated numerically with detailed chemical kinetics mechanisms. Three kinds of wall materials (100, 7.5, and 0.5 W/m·K) were selected to investigate the effect of heat conduction on the catalytic combustion. The simulation results indicate that the catalytic reaction restrains the gas phase reaction in Pt/γ-Al2O3 catalytic micro-combustors. The gas phase reaction restrained by Pt/γ-Al2O3 catalysts is sensitive to thermal boundary condition at the wall. For most conditions, the gas phase More >

  • Open Access

    ARTICLE

    Renewable Resource-Based Hybrid Crosslinker for Sustainable Industrial Coatings

    Dinesh Balgude, Anagha Sabnis*

    Journal of Renewable Materials, Vol.2, No.3, pp. 235-245, 2014, DOI:10.7569/JRM.2014.634115

    Abstract Renewable resource-based hybrid crosslinker was successfully synthesized via sol-gel technology. The synthesis involved malenization of Cashew Nut Shell Liquid (CNSL) followed by its silane modifi cation and subsequent hydrolysis and condensation with tetraethyl orthosilicate (TEOS). The synthesized crosslinker was characterized by spectroscopic analysis (FT-IR, 1 H-NMR, 13C-NMR and 29Si-NMR) for structural elucidation. The crosslinker was further formulated in a conventional stoving system. Fully-cured coatings were obtained after stoving at 120°C for ½ hr and were then evaluated for physical, mechanical, chemical, optical, accelerated weathering, electrochemical and morphological properties. The incorporation of hybrid crosslinker in a conventional stoving More >

  • Open Access

    ARTICLE

    Foam-Laid Thermoplastic Composites Based on Kraft Lignin and Softwood Pulp

    Antti Ojala1,*, Lisa Wikström1, Kalle Nättinen2, Jani Lehmonen3, Karita Kinnunen-Raudaskoski4

    Journal of Renewable Materials, Vol.2, No.4, pp. 278-284, 2014, DOI:10.7569/JRM.2014.634126

    Abstract This article presents a new method of producing thermomoldable nonwoven materials based on kraft lignin (KL) and softwood kraft pulp (KP). A mixture of starch acetate (SA) and triethyl citrate (TEC) was used as a water insoluble plasticizer for KL. The thermoplastic lignin (TPL) material with the optimized ratio of KL, SA and TEC was prepared in a twin-screw extruder. The TPL compound was ground and mixed with KP fi bers to produce thermoformable sheets using foam-laid technology. The formed webs were compression molded (CM) into plates and mechanically tested. The foam-laid composites had tensile More >

  • Open Access

    ARTICLE

    Atomistic Modeling of Spall Response in a Single Crystal Aluminum

    R. R. Valisetty1, A. M. Dongare2, A. M. Rajendran3, R. R. Namburu1

    CMC-Computers, Materials & Continua, Vol.44, No.1, pp. 23-57, 2014, DOI:10.3970/cmc.2014.044.023

    Abstract Materials used in soldier protective structures, such as armor, vehicles and civil infrastructures, are being improved for performance in extreme dynamic environments. Accordingly, atomistic molecular dynamics simulations were performed to study the spall response in a single crystal aluminum atom system. A planar 9.6 picoseconds (ps) shock pulse was generated through impacts with a shock piston at velocities ranging from 0.6 km/s to 1.5 km/s in three <1,0,0>, <1,1,0>, and <1,1,1> crystal orientations. In addition to characterizing the transient spall region width and duration, the spall response was characterized interms of the traditional axial stress vs. axial… More >

  • Open Access

    ARTICLE

    Seed germination after freezing in high-mountain plant species: Implications for ski-run restoration

    Díaz-Miguel M1, J Castro2, PA García3

    Phyton-International Journal of Experimental Botany, Vol.83, pp. 423-429, 2014, DOI:10.32604/phyton.2014.83.423

    Abstract The construction of a ski slope implies a strong environmental impact as a result of the removal of the vegetation cover. The need to protect the soil requires a rapid restoration of vegetation, which is often done with commercial seed mixtures that can cause a negative impact on these high mountain ecosystems. Thus, the use of seeds of native species is essential, especially in areas rich in endemic species. The compaction of snow as a result of the preparation of the ski slopes causes the soil to freeze. This hinders the germination of seeds, especially More >

  • Open Access

    ARTICLE

    Morphoanatomical functional traits in xerophytic species of a saline environment

    Pérez Cuadra V, V Cambi

    Phyton-International Journal of Experimental Botany, Vol.83, pp. 389-396, 2014, DOI:10.32604/phyton.2014.83.389

    Abstract The halophytic community of Salitral de la Vidriera (Buenos Aires Province, Argentina) has species with different morphoanatomical functional traits. The aim of this study was to compare these traits in four species, two Asteraceae (Baccharis spartioides and B. tenella) and two Frankeniaceae (Frankenia juniperoides and F. pulverulenta). Leaves and stems were treated under traditional techniques for anatomical study. Leaves the of Asteraceae and F. pulverulenta were amphistomatic while in F. juniperoides they were hypostomatic. All species showed trichomes and only the Frankeniaceae had salt glands. The mesophyll was isolateral in Asteraceae, and dorsiventral in Frankeniaceae; the number of foliar vascular bundles More >

  • Open Access

    ARTICLE

    Linking relative growth rates to biomass allocation: the responses of the grass Leymus chinensis to nitrogen addition

    Li1,2 YY, X-T Lü1, Z-W Wang1, C Zhou3,4, X-G Han1

    Phyton-International Journal of Experimental Botany, Vol.83, pp. 283-289, 2014, DOI:10.32604/phyton.2014.83.283

    Abstract Relative growth rate (RGR) of plants is a key component of fitness. Theoretically, the RGR of plants would be closely related with biomass allocation. Our mechanistic understanding of the relationship between RGR and biomass allocation under global change scenarios is still limited. We examined the responses of RGR and biomass allocation of Leymus chinensis, a dominant grass in the temperate steppe of northern China, to a wide range of N addition. We found that N addition increased RGR of L. chinensis up to a threshold of 10 g N/m2. While leaf and stem weight ratios were positively correlated… More >

  • Open Access

    ARTICLE

    The nutrient accumulation pattern and cycling in natural secondary forests in North China. A case study from the Caijiachuan watershed, Shanxi Province

    Wei TX1, XJ Zhang1,2, JZ Zhu1

    Phyton-International Journal of Experimental Botany, Vol.83, pp. 213-223, 2014, DOI:10.32604/phyton.2014.83.213

    Abstract In order to examine the nutrient content, and the distribution and accumulation patterns of individual nutrients in the natural secondary forests (NSFs), sample NSF plots were selected in the Caijiachuan watershed on the Loess Plateau. On the basis of a comprehensive field inventory to the NSFs in Caijiachuan watershed, a 40 m × 40 m sample plot was selected as the representative plot. Each tree plant was then measured to select the standard tree in accordance with a diameter-scale. For measurement of the biomass in the above-ground part of the tree, it was divided into… More >

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