What are different electromagnetic methods?
What are different electromagnetic methods?
This term is now commonly used for any method employing electromagnetic fields, including methods that use direct current (electrical or resistivity methods) and induced polarization (IP), methods that use microwave frequencies (ground-penetrating radar), and methods that use natural electromagnetic fields ( …
What is VLF in construction?
Vertical-Laminar-Flow. VLF.
What is a VLF survey?
Very-low-frequency (VLF) Methods VLF survey methods use very-low-frequency, radio communication signals to determine electrical properties of shallow bedrock and near-surface soils, primarily as a reconnaissance tool.
What is gravity method?
The gravity method involves measuring the gravitational attraction exerted by the earth at a measurement station on the surface. The strength of the gravitational field is directly proportional to the mass and therefore the density of subsurface materials.
Which Ray has minimum wavelength?
gamma rays
Out of the given wavelengths gamma rays have the minimum wavelength and infrared rays have the maximum wavelength.
What does PORD mean?
PORD
| Acronym | Definition |
|---|---|
| PORD | Post Office Recurring Deposit (India) |
| PORD | Process Orientated Research and Development |
| PORD | Preliminary Operational Requirements Document |
| PORD | Post-Operative Residual Disease |
What is CLF measurement?
CLF stands for Cooling Load Factor – a home’s cooling load is a measure of how much an air conditioning unit needs to effect cooling in a room of a given size. It is measured in British Thermal Units, which is usually abbreviated to BTUs.
What is Eotvos correction?
Abstract. Equations for the Eotvos correction are derived in terms of parameters for the earth’s reference ellipsoid and aircraft altitude to the degree of accuracy necessary to accommodate current jet transport speeds. Distinction is made in the equations between ground speed and aircraft velocity.