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  • 1
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    Stable oxygen and carbon isotopes of Cibicidoides wuellerstorfi of sediment core HYIV2015-B9 from China Sea (2019)
    PANGAEA
    In:  Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences | Supplement to: Li, Gang; Rashid, Harunur; Zhong, Lifeng; Xu, Xing; Yan, Wen; Chen, Zhong (2018): Changes in deep water oxygenation of the South China Sea since the last glacial period. Geophysical Research Letters, 45(17), 9058-9066, https://doi.org/10.1029/2018GL078568
    Details
    Publication Date: 2023-06-27
    Description: Stable oxygen and carbon isotopes of Cibicidoides wuellerstorfi of sediment core HYIV2015-B9 from South China Sea. All benthic foraminiferal carbon and oxygen isotope data are based on Cibicidoides wuellerstorfi. Age is given in calibrated C14 years.
    Keywords: AGE; B9; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; DEPTH, sediment/rock; GC; Gravity corer; Haiyang 4; HYIV20150816; HYIV2015-B9; Mass spectrometer, Thermo Fisher Scientific, MAT 253
    Type: Dataset
    Format: text/tab-separated-values, 84 data points
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  • 2
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    87Sr/86Sr results of Well NK1 from southern South China Sea (2022)
    PANGAEA
    Details
    Publication Date: 2023-12-09
    Description: Bio-carbonates from Well NK1 were sampled from every chip using a micro-drill. Twenty-four chips were drilled twice and the duplicate samples were used for quality control. Sub-samples of 50 mg were firstly leached with 0.3 N acetic acid and Milli-Q water for 30 min to remove absorbed salt. Rinsed samples were placed in 1.5 ml of 1.0 N acetic acid and sonicated for 2 hrs. Elemental compositions of the carbonate phase were firstly measured on the ICP-MS using 0.5 mL of supernatant. Elemental concentrations and 87Sr/86Sr isotope of insoluble residue from one sample (NK1-Nd-73 at 721.85 m) were measured. Insoluble residue of this sample was digested using a mixture of HNO3 (0.2 ml) and HF (0.8 ml). Following a modified procedure by Deniel and Pin (2001), one-half milliliter of supernatant was loaded to the preconditioned Sr-Spec columns to separate strontium. Strontium-isotope ratios were measured on a Nu Plasma high-resolution (HR) multi-collector ICP-MS at the Radiogenic Isotope Facility, University of Queensland. The standard deviation of triple measurements is 0.000009 on average. During the course of measurements, analyses of NBS SRM987 yield a mean 87Sr/86Sr ratio of 0.710222 ± 20 (2σ). All data are normalized to 86Sr/88Sr = 0.1194 and the 87Sr/86Sr are corrected to SRM987 =0.710249 ± 28 (2σ) to reflect the long-term drift.
    Keywords: 87Sr/86Sr; Age, dated; Age, dated, range, maximum; Age, dated, range, minimum; Collision; Comment; Coral atoll; Core wireline system; CWS; Deep Drilling; DEPTH, sediment/rock; Hiatus; LOWESS 6 calibration curve of McArthur et al. (2020) after incorporating all errors; NK1; Sample number; South China Sea; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 1806 data points
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  • 3
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    The nitrogen costs of photosynthesis in a diatom under current and future pCO2 (2015)
    PANGAEA
    In:  Supplement to: Li, Gang; Brown, Christopher M; Jeans, Jennifer A; Donaher, Natalie A; McCarthy, Avery; Campbell, Douglas A (2015): The nitrogen costs of photosynthesis in a diatom under current and future pCO2. New Phytologist, 205(2), 533-543, https://doi.org/10.1111/nph.13037
    Details
    Publication Date: 2024-03-15
    Description: With each cellular generation, oxygenic photoautotrophs must accumulate abundant protein complexes that mediate light capture, photosynthetic electron transport and carbon fixation. In addition to this net synthesis, oxygenic photoautotrophs must counter the light-dependent photoinactivation of Photosystem II (PSII), using metabolically expensive proteolysis, disassembly, resynthesis and re-assembly of protein subunits. We used growth rates, elemental analyses and protein quantitations to estimate the nitrogen (N) metabolism costs to both accumulate the photosynthetic system and to maintain PSII function in the diatom Thalassiosira pseudonana, growing at two pCO2 levels across a range of light levels. The photosynthetic system contains c. 15-25% of total cellular N. Under low growth light, N (re)cycling through PSII repair is only c. 1% of the cellular N assimilation rate. As growth light increases to inhibitory levels, N metabolite cycling through PSII repair increases to c. 14% of the cellular N assimilation rate. Cells growing under the assumed future 750 ppmv pCO2 show higher growth rates under optimal light, coinciding with a lowered N metabolic cost to maintain photosynthesis, but then suffer greater photoinhibition of growth under excess light, coincident with rising costs to maintain photosynthesis. We predict this quantitative trait response to light will vary across taxa.
    Keywords: Alkalinity, total; Aragonite saturation state; Bicarbonate ion; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cell biovolume; Chlorophyll a per cell; Chlorophyll c per cell; Chromista; Cytochrome c1; Fucoxanthin chlorophyll protein per cell; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Identification; Irradiance; Laboratory experiment; Laboratory strains; Light; Nitrogen content per cell; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Ochrophyta; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Phosphate; Photosynthetic protein, PsbC; Photosynthetic protein PsbA; Photosynthetic protein PsbD; Photosynthetic protein Rubisco; Phytoplankton; Potentiometric; Primary production/Photosynthesis; Protein per cell; Ratio; Salinity; Silicate; Single species; Species; Temperature, water; Thalassiosira pseudonana; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 1536 data points
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  • 4
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    Seawater carbonate chemistry and photosystem II photoinactivation of the coastal diatom Thalassiosira pseudonana in a laboratory experiment (2013)
    PANGAEA
    In:  Supplement to: Li, Gang; Campbell, Douglas A (2013): Rising CO2 Interacts with Growth Light and Growth Rate to Alter Photosystem II Photoinactivation of the Coastal Diatom Thalassiosira pseudonana. PLoS ONE, 8(1), e55562, https://doi.org/10.1371/journal.pone.0055562.t001
    Details
    Publication Date: 2024-03-15
    Description: We studied the interactive effects of pCO2 and growth light on the coastal marine diatom Thalassiosira pseudonana CCMP 1335 growing under ambient and expected end-of-the-century pCO2 (750 ppmv), and a range of growth light from 30 to 380 µmol photons/m**2/s. Elevated pCO2 significantly stimulated the growth of T. pseudonana under sub-saturating growth light, but not under saturating to super-saturating growth light. Under ambient pCO2 susceptibility to photoinactivation of photosystem II (sigma i) increased with increasing growth rate, but cells growing under elevated pCO2 showed no dependence between growth rate and sigma i, so under high growth light cells under elevated pCO2 were less susceptible to photoinactivation of photosystem II, and thus incurred a lower running cost to maintain photosystem II function. Growth light altered the contents of RbcL (RUBISCO) and PsaC (PSI) protein subunits, and the ratios among the subunits, but there were only limited effects on these and other protein pools between cells grown under ambient and elevated pCO2.
    Keywords: Alkalinity, total; Aragonite saturation state; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, organic, particulate, per cell; Carbon/Nitrogen ratio; Carbon and nitrogen and sulfur (CNS) element analyzer, Elementar, Vario EL; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cell biovolume; Cell density; CF1 subunit of ATP synthase protein; Chlorophyll a per cell; Chromista; Cytochrome c1; Date; Effective absorbance cross-section of photosystem II; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Identification; Irradiance; Laboratory experiment; Laboratory strains; Light; Nitrogen, organic, particulate, per cell; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Ochrophyta; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Phosphate; Photochemical quenching; Photospectrometer, methylene blue; Photosynthetic protein PsbA; Photosynthetic protein PsbD; Photosynthetic protein Rubisco; Phytoplankton; Potentiometric titration; Primary production/Photosynthesis; Protein per cell; Replicates; Salinity; Silicate; Single species; Species; Temperature, water; Thalassiosira pseudonana; Time in minutes; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 1542 data points
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  • 5
    Electronic Resource
    Electronic Resource
    Spin-label ESR studies of lipid-protein interactions in thylakoid membranes (1989)
    s.l. : American Chemical Society
    Biochemistry 28 (1989), S. 7446-7452 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00444a044
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Blood Platelet’s Behavior on Nanostructured Superhydrophobic Surface (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Journal of nano research Vol. 2 (Aug. 2008), p. 129-136 
    Details
    ISSN: 1661-9897
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: Regular arrays of micro-pillars and nano-grooves structures on the silicon wafer arefabricated by using soft lithography, and the three dimension morphology of textured surface isobserved by using scanning electron microscopy (SEM) and atomic force microscope (AFM). Thestatic water contact angles are measured by using contact angle meter to characterize thewettabilities of these surfaces. To investigate how the presence of topography and the variations ofwettability affect the haemocompatibility of textured surface contacted with blood, differentpatterned surfaces are designed and fabricated, and blood platelet adhesion test is carried out onthese surfaces. The adhesion and coagulation of platelets are inspected by scanning electronmicroscopy (SEM). Experimental data presented in this paper indicate that different surfaceroughness and wettability are the important factors for blood platelet adhesion. The amount ofadsorbed blood platelet is low on textured surfaces, compared with that on the flat surface.Especially, there is no coagulation and activation on the surface with nanometer grooves. That is tosay, the superhydrophobic surface is apt to decrease blood platelet adhesion. The study suggests thatsurface with suitable wettabililty and textured structures exhibits superior blood compatibility
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/43/transtech_doi~10.4028%252Fwww.scientific.net%252FJNanoR.2.129.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of Ice Counterparts on the Friction Behavior of Single Crystal Silicon Wafer (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 53-54 (July 2008), p. 167-172 
    Details
    ISSN: 1662-8985
    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 friction behavior of single silicon wafer sliding against different ice counterparts(α-Al2O3, CeO2 and SiO2) at 10±0.5 °C within a velocity of 60 rpm~300 rpm were studied using ahome-made friction and wear testing machine. The morphologies and surfaces roughness of the wornsilicon wafers were observed and examined on a non-contact surface topography instrument (ADE). Itwas found that the friction coefficient of the single silicon wafer decreased with the increase of slidingvelocity. Single crystal silicon wafer coupled with α-Al2O3 ice counterpart recorded the highestfriction coefficient and the biggest surface roughness, while it had the lowest friction coefficient andthe smallest surface roughness as with CeO2 ice counterpart. One reason was that a series oftribochemical reactions occurred at the local contact point between the ice counterpart and the siliconwafer during sliding. Under alkaline condition, there would be a soft corrosion layer formed on thesurface of the silicon wafer. Another reason was that the hardness of the abrasive particles wasdifferent and this caused different cutting depth of them
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.53-54.167.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Tensile Behavior of Aluminum Matrix Composites Reinforced by Aluminum Borate Whiskers and Magnetic Ceramic Particles (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 1274-1276 
    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: Aluminum borate whiskers and magnetic ceramic particles (NiFe2O4 or Fe3O4) reinforcedaluminum matrix composites were synthesized by a squeeze casting technique. Microstructures wereobserved using scanning electron microscopy (SEM). The tensile strength and tensile yield strength of theas-cast composites containing NiFe2O4 particles were higher than that of composites containing Fe3O4particles. The tensile yield strength of the thermomagnetically treated composites was higher than that ofthe as-cast or the thermally treated composites. The effects of the magnetostrictive property of Fe3O4 orNiFe2O4, the interface and the thermal residual stresses on tensile behaviors of the composites withdifferent treatments were discussed in this paper
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1274.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Biomimetic Synthesis of PEC-HA Composite Analogous to Bone (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 1699-1702 
    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: A polyelectrolyte complex (PEC) composed of chitosan (CS) and phosphorylated chitosan(PCS) was used to encapsulate a calcium phosphate by a biomimetic method. An acidic CS (polycation)solution containing calcium and phosphate ions (Ca2+: 6mM, Ca/P = 1.67) was added into PCS(polyanion) solution leading to the formation of a polyelectrolyte complex (PEC) with nanoscopiccarbonate-containing, low-crystallinity hydroxyapatite (HA) distributed evenly in the fibrils of the PECby controlled crystal growth. The resulting composite material, PEC-HA, has a complicated, hierarchicalporous structure that is expected to have high bio-compatibity and that may be of use as a carrier forcontrolled-release therapetic agents
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1699.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Fracture Analysis of Side-Gusset Plate of Combined-Roller Based on Finite Element Method (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 324-325 (Nov. 2006), p. 137-140 
    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 side-gusset plate is connector of the combined-roller, which is the key component ofthe High-pressure Grinding Roller equipment that is applied in crushing raw iron ore, Fractureoccurred at the bottom of the side-gusset plate while the roller’s operation. For exploring the reasonof fracture, the stress distribution and corresponding critical location of the side-gusset plate werecomputed and analyzed according to two working situations based on finite element method. Theanalysis result illustrates that it is the failure of infant mortality because of overloading, not belongsto fatigue behavior, with the presence of the component operating time and the fracturecross-section’s granular feature as well. This result is a reliable foundation for succeeding redesignand manufacturing of side-gusset plate and other component, the feasible plan was brought forwardto improve the component operation’s stability
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.324-325.137.pdf
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