11 research outputs found

    Nitrogen deposition and retention in the two old growth forest ecosystems during the experimental period.

    No full text
    a<p>Inorganic nitrogen deposition from May to August 2008, from a database of the Chinese Ecosystem Research Network (CERN).</p>b<p>Total <sup>15</sup>N recovery in the ecosystem four months after the application of the (<sup>15</sup>NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> and K<sup>15</sup>NO<sub>3</sub> tracers.</p

    Percentage of recovered <sup>15</sup>N in different ecosystem N pools in the subtropical forest ecosystem at DHS and in the boreal forest ecosystem at DXAL in the (<sup>15</sup>NH4)<sub>2</sub>SO<sub>4</sub> and K<sup>15</sup>NO<sub>3</sub> application treatments.

    No full text
    <p>Percentage of recovered <sup>15</sup>N in different ecosystem N pools in the subtropical forest ecosystem at DHS and in the boreal forest ecosystem at DXAL in the (<sup>15</sup>NH4)<sub>2</sub>SO<sub>4</sub> and K<sup>15</sup>NO<sub>3</sub> application treatments.</p

    Comparison of the Watson formula and bioimpedance spectroscopy for measuring body volume and calculating kt/V in patients with peritoneal dialysis

    No full text
    Background: Ascertaining the total body water (V), usually obtained by the Watson formula or bioimpedance spectroscopy (BIS), is crucial for the calculation of Kt/V in patients with peritoneal dialysis (PD). The aim of our study was to compare two different methods of determining V and explore which one is suitable for clinical application. Methods: This was a retrospective observational study. V was determined using the Watson formula (Vwat) and BIS (Vbis). The differences between Vbis and Vwat and between Kt/Vbis and Kt/Vwat were assessed. The patients were allocated to different groups according to the Kt/Vwat and Kt/Vbis values. Clinical parameters were compared between these groups to investigate which method of obtaining the Kt/V value was more suitable. Results: 150 patients on PD were included. Vwat was significantly higher than Vbis, apart from in female patients with volume overload. Consequently, weekly Kt/Vwat was lower than Kt/Vbis in these patients. A significant negative correlation between mean Vwat-Vbis and overhydration values was also found. Moreover, through uniform manifold approximation and projection analysis, a clustering tendency between patients in the adequate group with both Kt/Vwat and Kt/Vbis > =1.7 and patients in the inconsistent group with Kt/Vwat  =1.7 was identified, suggesting that their clinical features were similar. There were significant differences between Vwat and Vbis and between Kt/Vwat and Kt/Vbis. Kt/Vwat may underestimate small-solute dialysis adequacy in most cases. Kt/Vbis instead of Kt/Vwat could be accounted for in creating individualized dialysis prescriptions if the patient has no obvious clinical symptoms.</p

    UiO-66-Coated Mesh Membrane with Underwater Superoleophobicity for High-Efficiency Oil–Water Separation

    No full text
    A UiO-66-coated mesh membrane with micro- and nanostructures was designed and successfully fabricated on steel mesh through a simple solution immersion process, exhibiting hydrophilic and underwater superoleophobic properties. It displays an outstanding oil–water separation efficiency over 99.99% with a high water permeation flux of 12.7 × 10<sup>4</sup> L m<sup>–2</sup> h<sup>–1</sup>, so high purity water (with the residual oil content less than 4 ppm) can be readily obtained from such a simple mesh membrane from various oil–water mixtures. Its large-scale membrane production will facilitate its practical usage for the industrial and environmental water purification

    UiO-66-Coated Mesh Membrane with Underwater Superoleophobicity for High-Efficiency Oil–Water Separation

    No full text
    A UiO-66-coated mesh membrane with micro- and nanostructures was designed and successfully fabricated on steel mesh through a simple solution immersion process, exhibiting hydrophilic and underwater superoleophobic properties. It displays an outstanding oil–water separation efficiency over 99.99% with a high water permeation flux of 12.7 × 10<sup>4</sup> L m<sup>–2</sup> h<sup>–1</sup>, so high purity water (with the residual oil content less than 4 ppm) can be readily obtained from such a simple mesh membrane from various oil–water mixtures. Its large-scale membrane production will facilitate its practical usage for the industrial and environmental water purification

    UiO-66-Coated Mesh Membrane with Underwater Superoleophobicity for High-Efficiency Oil–Water Separation

    No full text
    A UiO-66-coated mesh membrane with micro- and nanostructures was designed and successfully fabricated on steel mesh through a simple solution immersion process, exhibiting hydrophilic and underwater superoleophobic properties. It displays an outstanding oil–water separation efficiency over 99.99% with a high water permeation flux of 12.7 × 10<sup>4</sup> L m<sup>–2</sup> h<sup>–1</sup>, so high purity water (with the residual oil content less than 4 ppm) can be readily obtained from such a simple mesh membrane from various oil–water mixtures. Its large-scale membrane production will facilitate its practical usage for the industrial and environmental water purification
    corecore