A 3-dimensional study of delta O-18 in atmospheric CO2: contribution of different land ecosystem - Peylin, Ciais, et al. - 1999 () Citation Context ...heric CO2 cycle, where biological activity is inferred from changes in CO2 concentration in air (Ciais et al., 1995; Enting et al.,...
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图2(PDF) 各组13CO2代谢速率. 2.3 13C-美沙西丁呼气试验累积丰度(CD) 正常人累积丰度(CD)曲线斜率明显高于其他各组. 随肝硬化患者肝功能Child 分级不断加重,曲线斜率相应变小. 各组120 min 13CO2累积呼出丰度依次分别为31.2±4.5%,13.8±3.7%,8.2±2.2%,2.4±0.8%,各组间均有显著性差异(P <0.05,图3)...
During critical phases of flight (landing, de-orbiting, take-off) stress on the crew can be high. The chart below gives some idea of the percentage of O2 needed to maintain the health of the crew for given pressures (the DG4 follows this chart exactly). CO2: Usually, in a home, the...
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Giles and de Boer, 1990; Ma et al., 2017) and this process would not enhance total reservoir porosity. Although non-ferroan calcite and biotite are commonly dissolved via intrusion of organic CO2 in the mesodiagenetic regime, the dissolved cements along with aqueous CO2, promoted the ...
A Cdx2 expression vector was also constructed, as previously reported.3,13,19 Following incubation at 37 °C in a humidified incubator containing 5% CO2 for 6 h, 2 ml of normal growth medium was exchanged. Het-1A cells were collected at 48 h after transfection, and then samples were ...
De Santi, M. Bartoli Hot moments and hotspots of cyanobacteria hyperblooms in the Curonian Lagoon (SE Baltic Sea) revealed via remote sensing-based retrospective analysis Sci. Total Environ., 769 (2021), Article 145053, 10.1016/j.scitotenv.2021.145053 View PDFView articleView in ScopusGoogle ...
In spite of decree 99, which bans unauthorized flaring, Nigeria flares over 75 % of the associated gas it produces and this represents a pollution equivalent to 45 million tons of CO2 per day. Currently, Nigeria has over 123 flaring sites in the Niger Delta region and has been regarded as...
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