A Study of the Physical and Chemical Processes Active in Ozone Generation by Carbon Dioxide Fed Corona Discharges

The main features of the processes of carbon assimilation are that the green plant under the influence of radiant energy takes in carbon dioxide, evolves oxygen, and in the majority of cases produces carbohydrates. The only aspect of these processes which has been subjected to detailed investigation is the intake of carbon dioxide, our knowledge of which is due to the extensive researches of F. F. Blackman and of R. Willstätter. Blackman has investigated the factors, such as light, temperature, carbon dioxide supply, which influence the intake of carbon dioxide by the ordinary green leaf, while Willstätter has extended Blackman’s work by including quantitative investigation of the amount of chlorophyll. When we turn, on the other hand, to the question of the actual physical and chemical processes of carbon assimilation we find many hypotheses, but few facts. We are acquainted with the primary facts of the intake of carbon dioxide and the formation of carbohydrates, etc., but we have no definite knowledge of the intermediate processes concerned.

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PHYSICAL AND CHEMICAL PROCESSES GOVERNING THE COMBUSTION OF BINARY COMPOSITIONS OF AMMONIUM DINITRAMIDE WITH GLYCIDYLAZIDEPOLYMER

International Journal of Energetic Materials and Chemical Propulsion ◽

10.1615/intjenergeticmaterialschemprop.v6.i2.60 ◽

2007 ◽

Vol 6 (2) ◽

pp. 213-228

Author(s):

Valery Sinditskii ◽

V. Y. Egorshev ◽

A. I. Levshenkov ◽

M. V. Berezin

Keyword(s):

Chemical Processes ◽

Ammonium Dinitramide ◽

Physical And Chemical

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Influence of Ethanol and Water on Physical and Chemical Processes of Splitting of Paracetamol and Glycine

Journal of Nano- and Electronic Physics ◽

10.21272/jnep.9(6).06022 ◽

2017 ◽

Vol 9 (6) ◽

pp. 06022-1-06022-6

Author(s):

A. G. Barylka ◽

◽

R. M. Balabai ◽

Keyword(s):

Chemical Processes ◽

Physical And Chemical

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Nucleophilicity and its parametrization

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19890117 ◽

1989 ◽

Vol 54 (1) ◽

pp. 117-135

Author(s):

Oldřich Pytela ◽

Vítězslav Zima

Keyword(s):

Regression Analysis ◽

Linear Correlation ◽

Correlation Equation ◽

Chemical Processes ◽

General Tendency ◽

Orbital Interaction ◽

Physico Chemical ◽

Physical And Chemical ◽

Two Parameter ◽

Better Than

The method of conjugate deviations based on the regression analysis has been suggested for construction of a new nucleophilicity scale. This method has been applied to a set of 28 nucleophiles participating in 47 physical and chemical processes described in literature. The two-parameter nucleophilicity scale obtained represents-in the parameter denoted as ND-the general tendency to form a bond to an electrophile predominantly on the basis of the orbital interaction and-in the parameter denoted as PD-the ability to interact with a centre similar to the proton (basicity). The linear correlation equation involving the ND, PD parameters and the charge appears to be distinctly better than the most significant relations used. The correlation dependences have the physico-chemical meaning. From the position of individual nucleophiles in the space of the ND and PD parameters, some general conclusions have been derived about the factors governing the reactivity of nucleophiles.

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Contribution to the Research and Development of Radiation Chambers in Steam Reforming. Problem-Oriented Application of a Fuzzy Expert System

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19922125 ◽

1992 ◽

Vol 57 (10) ◽

pp. 2125-2134 ◽

Cited By ~ 1

Author(s):

Petr Stehlík ◽

František Babinec

Keyword(s):

Carbon Dioxide ◽

Mathematical Model ◽

Expert System ◽

Service Life ◽

Research And Development ◽

Steam Reforming ◽

Methane Conversion ◽

Chemical Processes ◽

Fuzzy Expert System ◽

Present Contribution

An application of a fuzzy expert system intended for estimating some parameters of steam reforming can also be one of the examples of an ever increasing utilization of expert systems in practice. The present contribution deals with the method making use of a verified mathematical model for simulating thermal chemical processes in reforming furnace radiation chamber in order to create knowledge base. This base includes linguistic values of selected independent and dependent variable quantities. Examples given illustrate an evaluation of dependent variable quantities (methane conversion into carbon dioxide and monoxide, reaction tube service life) by means of the said expert system based on queries.

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The Tree

10.1093/oso/9780198824589.003.0009 ◽

2018 ◽

Author(s):

Andrew Steane

Keyword(s):

Carbon Capture ◽

Chemical Processes ◽

Physical And Chemical

The life of an ordinary tree is described, in terms of the main physical and chemical processes: carbon capture by photosynthesis; entropy and energy; moisture. The information expressed in the tree comes partly from the DNA and partly from the sunlight. The tree does not push upwards from the ground, but solidifies the air.

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