نتایج جستجو برای: phosphorous budget
تعداد نتایج: 37861 فیلتر نتایج به سال:
The Total Irradiance Monitor (TIM) instrument is designed to measure total solar irradiance with an absolute accuracy of 100 parts per million. Four electrical substitution radiometers behind precision apertures measure input radiant power while providing redundancy. Duty cycling the use of the radiometers tracks degradation of the nickel-phosphorous absorptive black radiometer interiors caused...
OBJECTIVE Abnormalities in frontal lobe phosphorous metabolism in patients with bipolar disorder have been reported, but many of the patients studied were receiving lithium. In this study, medication-free bipolar patients were examined to determine abnormalities in frontal lobe high-energy phosphorous metabolism. METHOD In vivo phosphorous-31 magnetic resonance spectroscopic imaging was perfo...
Low temperature boron and phosphorous diffusion gettering (BDG and PDG) of iron in Czochralski-grown silicon were experimentally studied. Differences and similarities between the gettering techniques were clarified by using intentionally iron contaminated wafers emphasizing especially the effect of oxygen. Experiments showed that the surprisingly high gettering effects of BDG could be explained...
The effect of nitrogen status on phosphorous uptake and translocation was examined in 6-day-old dark-grown decapitated maize seedlings exposed to 25 micromolar phosphorous. Transfer to complete solutions containing 1 millimolar ammonium resulted in an increase in phosphorous uptake rate after 6 to 8 hours. The stimulus remained effective for at least 5.5 hours upon subsequent transfer to nitrog...
The ocean's nitrogen cycle is driven by complex microbial transformations, including nitrogen fixation, assimilation, nitrification, anammox and denitrification. Dinitrogen is the most abundant form of nitrogen in sea water but only accessible by nitrogen-fixing microbes. Denitrification and nitrification are both regulated by oxygen concentrations and potentially produce nitrous oxide (N2O), a...
Abstract In this study, a 2×3 factorial design with two levels of shrimp density (25 and 50 shrimp per m-2) and three levels of red algae density (0, 200 and 400g per m-2) was applied to calculate nitrogen and phosphorous budgets in integrated culture of Litopenaeus vannamei with Gracilaria corticata during 45 days under zero water exchange system. Juvenile of L.vannamei (5.82 ± 0.11 g...
In Situ X-Ray Absorption Spectroscopic Study of Li1.05Ni0.35Co0.25Mn0.4O2 Cathode Material Coated with LiCoO2 Aniruddha Deb, Uwe Bergmann, Stephen P. Cramer, and Elton J. Cairns* Environmental Energy Technologies Division and Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Stanford Synchrotron Radiation Laboratory, Menlo Park, California 9402...
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