concentration measurements
Comparison of OH concentration measurements by DOAS and LIF during SAPHIR chamber experiments at high OH reactivity and low NO concentration
... high VOC concentrations (e.g. Monks et al., 2009; Whalley et al., 2010; Lu et al., 2012a,b). However, measured OH con- centrations were found to be up to a factor of ten larger than model predictions in forested areas ...
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A method for stable carbon isotope ratio and concentration measurements of ambient aromatic hydrocarbons
... for measurements of the stable carbon isotope composition include a combina- tion of a combustion interface, a gas chromatograph (GC) and an isotope ratio mass spectrometer (IRMS) (Matthews and Hayes, ...GC-IRMS ...
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Radon Concentration Measurements in Gattar Uranium Prospect, Northern Eastern Desert, Egypt
... Controlling of radon and its daughters is very important during the choice of mining method, mine layout and planning the ventilation system. The health hazard of high exposure to radon is a very serious problem in the ...
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HMGB1 concentration measurements in trauma patients: assessment of pre-analytical conditions and sample material
... We have therefore evaluated effects on measured HMGB1 concentrations in samples from trauma patients stored at room temperature for variable time periods prior to centrifugation and free[r] ...
8
Reproducibility of brain metabolite concentration measurements in lesion free white matter at 1.5 T
... oretical ratio of 3/2. The water removal consists of an iterative low pass filter around the frequency at 4.7 ppm with a fixed number of 22 iterations. At 1.5 T an accur- ate separation of Glu and Gln is difficult. ...
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Constraining regional greenhouse gas emissions using geostationary concentration measurements: a theoretical study
... The viewing geometry of a geostationary measurement cou- pled with the albedo of water in the near-infrared precludes any useful measurements over water. We also assume no measurements are possible at solar ...
9
Technical note: Interferences of volatile organic compounds (VOCs) on methane concentration measurements
... Quantitative measurements of the effect of β-pinene mixing ratios on measured (apparent) methane mixing ratios when analysers were challenged with stepwise changes in the β-pinene mixing ...
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RADON CONCENTRATION MEASUREMENTS AT THE IRT-SOFIA RESEARCH REACTOR SITE
... The pump is installed downstream of the detector and it draws ambient air through the particulate filter at a nominal flow rate of 35 l/min. This flow rate is higher than the human respiratory rate. This means that the ...
7
Apatite Chlorine Concentration Measurements by LA ICP MS
... Apatite incorporates variable and significant amounts of halogens (mainly F and Cl) in its crystal structure, which can be used to determine the initial F and Cl concentra- tions of magmas. The amount of chlorine in the ...
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High frequency productivity estimates for a lake from free water CO2 concentration measurements
... the forest to the atmosphere, calculated as the covariance be- tween the fluctuations of the vertical wind velocity and the gas mixing ratio. High-frequency measurements for produc- tivity are common in forest ...
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The use of off-line measurement information in on-line state estimation of fed-batch penicillin fermentations
... weight concentration than is available from the measured change in total carbon available from all sources (assumed change in the case o f CSL), after accounting for the non-biomass ...weight concentration ...
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Concentration probe measurements in a Mach 4 nonreacting hydrogen jet
... for concentration measurements in binary gas ...a concentration probe, the device is robust and is well suited to compressible flow ...and concentration measurements in a nonreacting ...
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Development of integrated methodologies for optimal characterization of reactive contaminant sources and monitoring network design in polluted aquifer sites
... simulated concentration measurement data at monitoring ...contaminant concentration measurements due to these source fluxes at all the 11 monitoring wells at time t=800 ...
217
Free and Total Calcium Concentrations in the Blood of Rainbow Trout, Salmo Gairdneri, During ‘Stress’ Conditions
... Measurements were made of the free and total calcium concentrations [Ca 2+ ] and Cat, acid-base status, haemoglobin concentration, haematocrit and plasma protein concentration in the blo[r] ...
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MEASUREMENTS OF LEAD-210 ACTIVITY CONCENTRATION IN THE GROUND-LEVEL AIR IN FINLAND AND BULGARIA
... concentration was measured directly by gamma spectrometry with N-type coaxial HPGe-detector Ortec GMX-45200-P with a 40 % relative efficiency. Because of in principal lower efficiency and low emission probability, ...
7
Optimization of electrolyte composition for the cathodic template deposition of Ni(OH)2 based electrochromic films on FTO glass
... optimal concentration of polyvinyl alcohol (PVA) for deposition of electrochromic nickel hydroxide films onto fluorine-doped tin oxide (FTO), using cathodic template deposition ...different concentration of ...
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MEASUREMENTS OF ENDOGENOUS GLUCAGON IN PLASMA AND THE INFLUENCE OF BLOOD GLUCOSE CONCENTRATION UPON ITS SECRETION
... Endogenous glucagon in pancreaticoduodenal venous plasma Plasma specimens obtained from the pancreaticoduodenal vein of 48 normal fasting dogs were assayed for glucagon content.. In 42 o[r] ...
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The Reduction Potential of Pentavalent Vanadium to Vanadyl Ion in Hydrochloric Acid Solutions Fluoresenzversuch AnOrganische Daempfe, Besonders Aceton Studies of the Nature and Reactions of Oxidized Silver Compounds, Especially in Nitric Acid
... acid concentration, and this results in a corresponding decrease in the activity coefficient of the vanadic·acid.1O To correlate this fact with the results of the potential measurements,[r] ...
86
New Aromatic Azo-Schiff as Carbon Steel Corrosion Inhibitor in 1 M H2SO4
... the concentration increases the inhibition efficiency at each temperature, the maximum recorded inhibition efficiency was ...mM concentration at 313 ...
6
A STUDY ON RETARDATION OF RUST BY CARISSA CARANDAS
... The results given below are the anti-bacterial activity for the various concentrations 50, 100, 200 µg/mL of the ethanolic extract of Carissa carandas. It is observed that the ethanolic extract of the plant at 200 µg/mL ...
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