advanced_concepts 1 min read
General Properties of the Rate Function for a Single Reaction
The rate of reaction is generally a function of temperature and composition, and the development of mathematical models to describe…
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advanced_concepts 2 min read
The Rate of Reaction
For a homogeneous, closed system at uniform pressure, temperature, and composition in which a single chemical reaction occurs and is…
advanced_concepts 1 min read
The Extent of Reaction
The changes in a chemically reacting system can frequently, but not always (e.g., complex fermentation reactions), be characterized by a…
advanced_concepts 3 min read
The Scope of Chemical Reaction Engineering
The subject of chemical reaction engineering initiated and evolved primarily to accomplish the task of describing how to choose, size,…
geophysics 10 min read
Induced Polarization
Introduction Conrad Schlumberger (Dobrin 1960) probably was first to report the induced polarization phenomenon, which he called “provoked polarization.” While…
geophysics 8 min read
Electrical Methods
Basic Concept Electrical geophysical prospecting methods detect the surface effects produced by electric current flow in the ground. Using electrical…
geophysics 3 min read
Seismic Wave Theory
Compressional Waves, which are also called P waves, are basically the same as sound (acoustic) waves, except that P waves…
geophysics 5 min read
Electric resistivity methods
rface. These methods utilize differences in electric potential to identify subsurface material. Fundamentals Resistivity is fundamentally related to Ohm’s Law…
geophysics 14 min read
Magnetic Methods
Basic Concepts The Earth possesses a magnetic field caused primarily by sources in the core. The form of the field…
General Concepts 6 min read
Different Types of Enzymes
Enzymes are critical protein molecules in living systems that, once synthesized, are not usually transformed into some of other kind…
geophysics 16 min read
Gravity Methods
Lateral density changes in the subsurface cause a change in the force of gravity at the surface. The intensity of…
geophysics 8 min read
Geophysical Methods
Geophysical techniques work through applying one of several types of force to the ground, to measure the resulting energy with…
