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  • 1
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    Distribution and activity of ammonia-oxidizers on the size-fractionated particles in the Pearl River estuary (2021)
    PANGAEA
    Details
    Publication Date: 2023-02-18
    Description: This dataset contains the amoA genes on three size-fractionated (〉 3.0 μm, 0.45‒3.0 μm, and 0.22‒0.45 μm) ammonia oxidizers and relevant environmental parameters observed along a salinity gradient in the Pearl River estuary, China during July 2014. The temperature and salinity were determined using the CTD system. Gene-related data was obtained using qPCR analysis. Nutrients were determined by an automatic analysis system (Bran-Lube, GmbH). All data were aimed to distinguish the distribution and bioactivity of ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) in the Pearl River estuary.
    Keywords: ammonia-oxidizing archaea; ammonia-oxidizing bacteria; environmental factors; Pearl River estuary; size-fractionated particles
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 2
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    N isotopic signals in nitrate and particulate phases in the South China Sea, datasets for figures and table (2017)
    PANGAEA
    In:  Supplement to: Yang, Jin-Yu Terence; Kao, Shuh-Ji; Dai, Minhan; Yan, Xiuli; Lin, Hui-Ling (2017): Examining N cycling in the northern South China Sea from N isotopic signals in nitrate and particulate phases. Journal of Geophysical Research: Biogeosciences, 122(8), 2118-2136, https://doi.org/10.1002/2016JG003618
    Details
    Publication Date: 2023-02-18
    Description: The data sets contain the data of nitrogen isotopes in nitrate and particulate phases from the South China Sea. They are used for the figures of the paper related to the N cycling in the South China Sea.
    Keywords: MULT; Multiple investigations; SouthChinaSea; South China Sea
    Type: Dataset
    Format: application/zip, 72.4 kBytes
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  • 3
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    Hydrographic data measurements in the Pearl River estuary, China (2021)
    PANGAEA
    Details
    Publication Date: 2023-02-18
    Keywords: A01; A02; A03; A04; A05; A06; A07; A07b; A08b; A10; A11; Ammonia+Ammonium; ammonia-oxidizing archaea; ammonia-oxidizing bacteria; CTD; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Distance; Elevation of event; environmental factors; Event label; Latitude of event; Longitude of event; Nitrate and Nitrite; Nitrous oxide, dissolved; Optional event label; Oxygen; P01; P02; P02A; P03; P03A; P04; P05; P05A; P06; P06A; P07; Pearl River estuary; Pearl River estuary, China; PRE_A01; PRE_A02; PRE_A03; PRE_A04; PRE_A05; PRE_A06; PRE_A07; PRE_A07b; PRE_A08b; PRE_A10; PRE_A11; PRE_P01; PRE_P02; PRE_P02A; PRE_P03; PRE_P03A; PRE_P04; PRE_P05; PRE_P05A; PRE_P06; PRE_P06A; PRE_P07; Salinity; size-fractionated particles; Suspended matter, total; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 313 data points
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  • 4
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    Gene copies or transcripts in size fractionated particles (〉3.0 mm, 0.45-3.0 mm, and 0.22-0.45 mm) in the Pearl River estuary, China (2021)
    PANGAEA
    Details
    Publication Date: 2023-02-18
    Keywords: A01; A06; A07; A11; ammonia-oxidizing archaea; ammonia-oxidizing bacteria; cDNA-based AOA-amoA copies; cDNA-based AOA-amoA copies, standard deviation; cDNA-based AOB-amoA copies; cDNA-based AOB-amoA copies, standard deviation; CTD/Rosette; CTD-RO; DNA-based AOA-amoA copies; DNA-based AOA-amoA copies, standard deviation; DNA-based AOB-amoA copies; DNA-based AOB-amoA copies, standard deviation; environmental factors; Event label; P05; Pearl River estuary; Pearl River estuary, China; PRE_A01; PRE_A06; PRE_A07; PRE_A11; PRE_P05; Site; size-fractionated particles
    Type: Dataset
    Format: text/tab-separated-values, 168 data points
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  • 5
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    Nitrate isotopes in the South China Sea and the adjoining western North Pacific Ocean (2022)
    PANGAEA
    Details
    Publication Date: 2023-05-26
    Description: This dataset includes nitrate isotopes and relevant hydrographic and chemical parameters (temperature, salinity, nitrate, phosphate, dissolved oxygen, and so on) observed in the South China Sea basin and the adjoining western North Pacific Ocean during 2011 and 2014. Nitrate isotopes were measured by the denitrifier method. Nutrients were analyzed onboard using a Technicon AA3 Auto-Analyzer (Ban-Lube, GmbH). Dissolved oxygen (DO) was determined using the Winkler method. These data were used to elucidate nitrate dynamics in these regions.
    Keywords: A1_L; A1a; A5_L; B5; biogeochemical signal; CTD; D5; D8; D9; DATE/TIME; Density, potential anomaly; dentrifier method; Depth, bottom/max; DEPTH, water; E3; E401; E405; E607; Event label; F1; H2; H6; H7; I6; KK1; LATITUDE; LE04a; LE10; LONGITUDE; LU60; LU65; N18-9; N20_11; N20_17; N20_18; N20-14; N20-15; N20-19; Nitrate, anomaly; Nitrate and Nitrite; Nitrate isotopes; Nitrite; Nitrite/Nitrate ratio; Oxygen; Oxygen, apparent utilization; P3; P5; Philippine Sea; PhiSea_LU60; PhiSea_LU65; PhiSea_N18-9; PhiSea_N20_11; PhiSea_N20_17; PhiSea_N20_18; PhiSea_N20-14; PhiSea_N20-15; PhiSea_N20-19; PhiSea_P3; PhiSea_P5; Phosphate; S504; Salinity; SCS_A1_L; SCS_A1a; SCS_A5_L; SCS_B5; SCS_D5; SCS_D8; SCS_D9; SCS_E3; SCS_E401; SCS_E405; SCS_E607; SCS_F1; SCS_H2; SCS_H6; SCS_H7; SCS_I6; SCS_KK1; SCS_LE04a; SCS_LE10; SCS_S504; Silicate; South China Sea; Technicon AA3 Auto-Analyzer; Temperature, water; Temperature, water, potential; Titration, Winkler; water exchange; western North Pacific; Δ(15-18); δ15N; δ15N, standard deviation; δ18O, standard deviation; δ18O, water
    Type: Dataset
    Format: text/tab-separated-values, 7804 data points
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  • 6
    Electronic Resource
    Electronic Resource
    AlN/AlGaN superlattices as dislocation filter for low-threading-dislocation thick AlGaN layers on sapphire (2002)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 81 (2002), S. 604-606 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report on an approach of using AlN/AlGaN superlattices (SLs) for threading-dislocation-density reduction to grow high quality thick AlGaN on sapphire. Using x-ray diffraction (XRD) measurements and etch pits counting by atomic force microscopy, we show that the insertion of AlN/AlGaN SLs suppresses the material mosaicity and decreases the threading dislocation density by two orders of magnitude, and then eliminates cracking. Dislocation densities deduced from the XRD results and those from chemical etching are in a good agreement. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1494858
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  • 7
    Electronic Resource
    Electronic Resource
    A Synergistic Low-Toxicity Gelcasting System by Using HEMA and PVP (2005)
    Malden, USA : Blackwell Science Inc
    Journal of the American Ceramic Society 88 (2005), S. 0 
    Details
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A new low-toxicity gelcasting system with a 2-hydroxyethyl methacrylate (HEMA) monomer was applied for casting of alumina ceramics. Polyvinyl pyrrolidone (PVP) was adopted for modifying the homogeneity of the PHEMA (poly-HEMA) gel. The rheological properties of alumina suspension in the HEMA–PVP premix solution were studied. After preparation of a concentrated alumina suspension, homogenous alumina green body with a relatively high strength of about 19 MPa could be formed through the PVP-modified HEMA system. Dense complex-shaped ceramic parts can be successfully produced through the system. Besides, the surface exfoliation phenomenon that seems inherent to the acrylamide gelcasting system could also be eliminated by using the PVP-modified HEMA system. Analysis of the interaction of HEMA and PVP suggested that the improved microstructure and strength homogeneity, as well as the elimination of surface exfoliation in the new system, should be attributed to the intermolecular hydrogen bonding formed between PHEMA and PVP molecules.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1551-2916.2005.00602.x
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of Acid Cleaning and Calcination on Rheological Properties of Concentrated Aqueous Suspensions of Silicon Nitride Powder (2002)
    Westerville, Ohio : American Ceramics Society
    Journal of the American Ceramic Society 85 (2002), S. 0 
    Details
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The powder characteristics of two types of Si3N4 (referred to as FD1 and FD2), as well as the rheological properties of their aqueous suspensions, were studied in this paper. There are distinctive differences in size distribution, soluble counterions, and surface groups. Highly concentrated aqueous slurries could not be prepared from these two as-received powders. Acid cleaning and calcination improved the solids loading of their aqueous slurries, but the improvement varied with the powder. For the as-received FD1 powder, poor dispersibility was caused by high-valence counterions, which can be eliminated through acid-cleaning. However, for the as-received FD2 powder, it was the surface group of amine structures and carbon-hydrogen bonding that limited the dispersibility. The calcination of FD2 can remove the amine structure and carbon-hydrogen bonding and improve the slurry's rheological properties almost perfectly. For acid-cleaned and calcined FD1, and calcined FD2, the solids loading of their aqueous suspensions reached 50 vol% with a viscosity below 300 mPa·s.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1151-2916.2002.tb00087.x
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  • 9
    Electronic Resource
    Electronic Resource
    Hydroformylation of methyl methacrylate catalyzed by homogeneous and polymer-attached rhodium complexes (1980)
    s.l. : American Chemical Society
    The @journal of organic chemistry 45 (1980), S. 684-689 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01292a027
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  • 10
    Electronic Resource
    Electronic Resource
    A study on the CNO burning rates
    Amsterdam : Elsevier
    Chinese Astronomy and Astrophysics 16 (1992), S. 284-292 
    Details
    ISSN: 0275-1062
    Keywords: stellar evolution-supernovae-nuclear reaction rates
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0275-1062(92)90068-M
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