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Measuring Co2 Concentration by Airborne Lidar
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021CO2 is the most important warming gas in atmosphere, it's meaningful to measure the CO2 concentration with high precise by different sensors. In this manuscript, we introduced the campaign of QHD (Qinhuangdao) flights, which equipped with CO2- IPDA (integrated path of different absorption LIDAR), an in-situ CO2 sensor, thermometer, hygrometer and GPS ...
Tianqi Shi, Ge Han, Xin Ma 0007
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Intercomparison of CO2 measurements
Deep Sea Research Part A. Oceanographic Research Papers, 1990Abstract Seawater samples, of four different salinities, were analysed for total alkalinity, total CO 2 , pH and p CO 2 by up to 12 laboratories. The results showthat although most laboratories are capable of high precision in these determinations, there is an unacceptably high disagreement between their analyses of the same samples.
A. Poisson, F. Culkin, P. Ridout
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The measurement of ventilatory response to CO2
British Journal of Diseases of the Chest, 1968Summary The interpretation of the measurements of ventilatory response to CO 2 has been shown to involve assumptions made about the P co 2 at receptor sites such as the carotid bodies and the motor output from the central controlling sites in the mid-brain.
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CO2 responsivity in the mouse measured by rebreathing
Pfl�gers Archiv European Journal of Physiology, 1986We have modified the rebreathing method to study CO2 responsivity in very small mammals. Tidal volume (VT) and frequency (f) of pentobarbital-anesthetized mice were measured during rebreathing from a closed circuit, primed with 95% O2, 5% CO2, through which the gas was constantly circulated at 0.5 l X min-1.
W F, Yee, E M, Scarpelli
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Journal of Clinical Monitoring, 1996
The pulmonary elimination of the volume of CO2 per breath (VCO2/br, integration of product of airway flow (V) and PCO2 over a single breath) is a sensitive monitor of cardio-pulmonary function and tissue metabolism. Negligible inspired PCO2 results when the capnometry sampling site (SS) is positioned at the entry of the inspiratory limb to the airway ...
P H, Breen, E R, Serina, S J, Barker
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The pulmonary elimination of the volume of CO2 per breath (VCO2/br, integration of product of airway flow (V) and PCO2 over a single breath) is a sensitive monitor of cardio-pulmonary function and tissue metabolism. Negligible inspired PCO2 results when the capnometry sampling site (SS) is positioned at the entry of the inspiratory limb to the airway ...
P H, Breen, E R, Serina, S J, Barker
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Coreflood Measurements of CO2 Trapping
SPE Annual Technical Conference and Exhibition, 2011Abstract We present a coreflood experiment that measures three properties that control the long-term fate of CO2 injected into the subsurface during carbon capture and storage (CCS): the residual saturation of CO2 after brine flooding as a function of initial saturation; the amount of CO2 that can dissolve in the brine; and the primary ...
Rehab M. El-Maghraby +2 more
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Aspects of CO2 advection measurements
Theoretical and Applied Climatology, 2011Observations of vegetation–atmosphere exchange of carbon dioxide (CO2) by the eddy covariance (EC) technique are limited by difficult conditions such as nighttime and heterogeneous terrain. Thus, advective flux components are included into the net ecosystem exchange (NEE) budget. However, advection measurements are experimentally challenging and do not
Siebicke, Lukas +2 more
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Single breath CO2, measurements of deadspace in ducks
Respiration Physiology, 1986We measured deadspace (VD) in ducks using CO2 expirograms (plots of expired PCO2 vs expired volume) obtained during artificial ventilation at different tidal volumes (VT) and respiratory system volumes (VRS). Conventional analysis of the expirograms for Bohr and Fowler VD indicated both were larger than anatomic VD.
R H, Hastings, F L, Powell
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2015
In order to achieve carbon reduction targets we need to be able to accurately measure our greenhouse gas emissions. In this chapter we explore the concept of carbon footprints, how they are comprised and importantly how they can be reduced.
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In order to achieve carbon reduction targets we need to be able to accurately measure our greenhouse gas emissions. In this chapter we explore the concept of carbon footprints, how they are comprised and importantly how they can be reduced.
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