Results 171 to 180 of about 8,120 (200)

Soap bubble respirometry

Journal of Chemical Education, 1991
Using the soap bubble respirometer to measure the vapor pressure of hexane over a temperature range.
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Calculation of ventilation threshold using noncontact respirometry

2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2008
We proposed the calculation method of the ventilation threshold using the noncontact respirometry under pedal stroke motion. By the simultaneous measurement with the expiration gas analyzer, we examined the effectiveness of the proposal method. There was high correlation over 0.8 between ventilation variations calculated by our proposed method and the ...
Hirooki, Aoki, Shiro, Ichimura, Satoru, Kiyooka, Kohji, Koshiji   +3 more
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Partitional Respirometry in Human Subjects

Journal of Applied Physiology, 1958
The technique of partitional respirometry has been critically evaluated in experiments on 38 healthy men aged 20–67 and 12 healthy women aged 21–55.
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Coulometric Respirometry

2008
This chapter describes the theory and practical applications of coulometric respirometry. Coulometric respirometry is probably the most accurate method for measuring oxygen consumption rates. It is ideal for small animals and has the dual advantages of high sensitivity and the fact that the oxygen in the organism’s environment is not depleted, allowing
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Validating Flow-through Respirometry

2008
This chapter describes methods for validating the measurements made using flow-through respirometry. These methods include the injection of nitrogen at a known flow rate into a respirometry system; burning a small flame of ethanol or methanol at a rate measured by weighing the lamp (often called “alcohol recovery”); and burning hydrocarbon gases such ...
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Flow-through Respirometry: The Equations

2008
This chapter demystifies respirometry equations, showing how they can be derived using a simple mental trick: focusing the analysis on the principal gas that is neither consumed nor produced by animals. The effect of dilution of oxygen by carbon dioxide, the enrichment of carbon dioxide by the consumption of oxygen, and the effects of water vapor on ...
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Simulated marine respirometry of biodegradable polymers

Journal of Environmental Polymer Degradation, 1994
Eleven microorganisms were isolated from several temperate marine locations in the northeast Altantic coast of the United States and one tropical location in the Pacific Ocean (Hawaii) for the purpose of developing a rapid and accurate method of screening biodegradable materials for their susceptibility to mineralization.
Alfred L. Allen, Jean Mayer, Robert Stote, David L. Kaplan   +3 more
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Flow-through Respirometry: Incurrent Flow Measurement

2018
This chapter describes the setup, plumbing, and equations required for applying a respirometry system wherein the flow rate of the air entering the animal chamber is known. Such systems are usually referred to as push systems, because the air is usually pushed into a sealed respirometer chamber at a known rate, and the concentrations of incurrent and ...
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Tuning the parameters for fast respirometry

Analytica Chimica Acta, 2002
Abstract The aerobic bacterial respiration rate is an indicator of microbial growth and metabolism, essential for monitoring the oxidation process and organic load content of samples in a diverse field of application from influent streams in wastewater treatment facilities to industrial fermentations.
A. Tzoris, D. Cane, P. Maynard, E.A.H. Hall   +3 more
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Dynamic respirometry of division synchronized Astasia longa

Experimental Cell Research, 1965
Abstract A dynamic respirometer has been developed and used to measure the respiration rates of temperature-synchronized Astasia longa. The instrument measures the respiration rate of cells in the synchronizing apparatus by evaluating the diffusion rate into the flask as a function of oxygen tension in the culture medium.
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