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Airborne Bacterial Communities: Diversity, Survival Strategies and Functional Roles in the Atmosphere. [PDF]

Environ Microbiol Rep
Park J, Fowler SJ.
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Controlled Atmosphere Exposure Chamber

Archives of Environmental Health: An International Journal, 1969
A room-sized chamber was constructed capable of automatically maintaining levels of single or mixed contaminants for prolonged periods. The system can add specific contaminants to the natural smog or filter them out or do both. The chamber can house 20 dogs or subhuman primates adequately. Air flow is laminar from side to side.
R J, Bryan, W M, Blackmore
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Controlled atmosphere storage

1997
Controlled atmosphere (CA) storage is used to extend the storage life of seasonal perishable produce when refrigeration alone is not sufficient. This technique can be used for many fruits and vegetables and, historically, has been the principle storage method for the world’s apple crop.
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Controlled Atmosphere Chambers

2014
Abstract Controlled atmosphere chambers are used to control the surface chemistry of the metals that are being processed. This article focuses on the various types of controlled atmospheres used in induction heat treating and brazing, namely, inert gas atmospheres based on argon and helium; prepared and commercial nitrogen-base ...
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Controlled Atmosphere Excitation

Applied Spectroscopy, 1952
In recent years there has been an increased interest on the part of spectrochemists in the employment of controlled special atmosphere spectral excitation. The early emphasis in this work was on the displacement of nitrogen from the excitation region, when carbon electrodes were used, in order to attenuate cyanogen bands.
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Controlled atmosphere levitation system

Journal of Scientific Instruments, 1959
A levitation system designed to melt and cast small quantities of metals under controlled-atmosphere conditions is described. Temperature control of the levitated sample and certain other practical aspects of the technique are discussed on the basis of experience gained over a two-year development period.
B Harris, A E Jenkins
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Controlling atmospheric carbon dioxide

Science, 2020
Paleoclimate The atmospheric concentration of carbon dioxide (CO2) has varied substantially over the past million years in tandem with the glacial cycle. Although it is widely agreed that upwelling of Southern Ocean water is a key factor, the finer details about what caused these CO2 variations are of great importance for understanding climate.
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Controlled Atmosphere Storage

2015
Controlled atmosphere storage was developed commercially almost a century ago as a supplement to refrigeration, particularly to extend the season of availability of apples. Since then, it has been increasingly used and applied to many fruit and vegetables.
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Atmospheric furnace pressure control

SPIE Proceedings, 1999
Thermal oxidation rates of silicon are known to be a function of time, temperature and gas flows. Recent work has focused on pressure as a variable in the process. While attention has been placed on pressure equalization between the process gases and the exhaust, this paper demonstrates that this level of control is insufficient, since the absolute ...
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Universal controlled atmosphere

Metal Science and Heat Treatment, 1970
N. P. Shcheklein, G. D. Sedel'nikov
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