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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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    DATA PANGAEA
  • 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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    DATA PANGAEA
  • 6
    Electronic Resource
    Electronic Resource
    On the algebraic formulation of certain geometry statements and mechanical geometry theorem proving (1989)
    Springer
    Algorithmica 4 (1989), S. 237-262 
    Details
    ISSN: 1432-0541
    Keywords: Geometry theorem proving ; Provers ; Nondegenerate conditions ; Ritt's algorithms ; Wu's method ; The Gröbner basis method ; Algebraically (or real) closed field ; Algebraic geometry ; Irreducible variety ; Nondegenerate component ; Generally true ; Simson's theorem ; Pappus' theorem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract In this paper we analyze the algebraic formulations of certain geometry statements appearing in recent literature related to mechanical geometry theorem proving and give several examples to show that one of these formulations can cause serious problems. We clarify a formulation which is essentially due to W. T. Wu and, in our opinion, is the most satisfactory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01553889
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    An algorithm for constructing gröbner bases from characteristic sets and its application to geometry (1990)
    Springer
    Algorithmica 5 (1990), S. 147-154 
    Details
    ISSN: 1432-0541
    Keywords: Polynomial, (Prime) ideal ; Generators ; (Irreducible) ascending chain ; (Irreducible) algebraic set ; Decomposition of an algebraic set ; Geometric configuration ; Nondegenerate component ; Geometry theorem proving
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract In Ritt's method, a prime ideal is given by a characteristic set. A characteristic set of a prime ideal is generally not a set of generators of this ideal. In this paper we present a simple algorithm for constructing Gröbner bases of a prime ideal from its characteristic set. We give a method for finding new theorems in geometry as an application of this algorithm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01840382
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  • 8
    Electronic Resource
    Electronic Resource
    Study on Processing Parameters of Ceramic Injection Moulding (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 1009-1011 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: According to the heat transmission theory, in the aid of computer, the temperature distributionin the cylinder cavity was calculated. The temperature of the mould has much influence on the time for theinjection material’s temperature of the cavity center to drop to the injection material softening temperature.The influence of the processing parameters on the density of the injection molding specimens wasalso investigated. It turns that the injection molding specimens’ density changes little with the increase ofinjection temperature and pressure, but changes a lot with the increase of holding pressure time
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1009.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of Micro-Pores after Sintering on Wear Behavior of Zirconium Silicate Composite Microbeads (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 1439-1441 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The composite zirconium silicate microbeads with different pretreating process weredeveloped in this paper. The wear loss of these microbeads was compared by testing of agitation mill.These microstructures with different micro-pores were compared by scanning electron microscopy. Thepore size was found have obvious influences on the mechanism of the wear. Some solutions wereproposed to overcome the micro-pores in the zirconium silicate composite microbeads
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1439.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    The Compressive Strength of Ceramic Microbeads (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 2411-2413 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The compressive strengths of three kinds of ceramic microbeads, ZrO2 toughened mullite,zirconium silicate and industrial zirconia, were studied in this paper. The densities of these ceramicmicrobeads were 2.9, 3.5 and 5.3g/cm3. The weighted average of compressive strength of these ceramicmicrobeads was 446.9, 500.8 and 917.3 N/mm2. It was concluded that the compressive strength ofceramic microbeads was proportional to the toughness and Young's modulus of the materials, and a largerdiameter of the ceramic microbeads led to a higher compressive strength
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2411.pdf
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