The pressure drop measurements are a cheap and fast alternative to tomographic or electric methods.
"Report on the Practicability of Magnetic and Electric Methods for the Detection of Submarines" 52 carbon typescript pp., 1917, author unknown) and related correspondence from Vannevar Bush and others (1917-1942).
There are several types of four-electrode arrays often used in electric methods, and their application depends on the geological problems that have to be solved, as well as the conditions on the earth's surface.
Not far from the museum is the Bastakia quarter containing the few remaining examples of houses that were the residences of wealthy Iranian merchants with their unique windtowers - a pre-electric method of air-conditioning.
Over the recent years, several new demulsification methods have been developed, such as pulse electric field method [8], ultrasonic method [9], microwave method [10], and biological methods [11].
The systems were described by the electric work method, a method which has practical advantages compared to other electrochemical methods.
While I see the "crowd farm" as an interesting way to directly connect people with their energy production, there are many other piezo-electric methods that would generate far more electricity.
In addition, 2 micro-electric methods were used in the experiments: single micro-electric energy (E-NaOCl) and micro-electric energy with pipetting (E-NaOCl + P).
Recently, some methods, such as guided electric field method [16], and step and flash imprint lithography [17], have been developed to fabricate wafer-scale-ordered AAO.
As is well known, non-contact electric resistivity method is an effective measurement method for determining the hydration progress of cementitious materials.
