Second order low pass filter. Cavity filter design software.
Second Order Low Pass Filter
theory of mind skills - A person's ability to understand or predict what a second person thinks or believes about the thoughts, beliefs, feelings, desires, or intentions of a third person.
Second-order problems/decisions have probabilistic uncertainty, are often complicated, and follow definable dynamic processes. These would be characterized with words like complicated, stochastic, probabilistic, optimizing, efficient, frequent, irreversible, medium risk, or medium term.
A band-pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range. An example of an analogue electronic band-pass filter is an RLC circuit (a resistor–inductor–capacitor circuit).
Of less than average height from top to bottom or to the top from the ground
Situated not far above the ground, the horizon, or sea level
Located at or near the bottom of something
in a low position; near the ground; "the branches hung low"
less than normal in degree or intensity or amount; "low prices"; "the reservoir is low"
an air mass of lower pressure; often brings precipitation; "a low moved in over night bringing sleet and snow"
Emergent patterns on Stiðjafjall
Looking across Fólkaskarð at Tungulíðfjall in the background.
The flat tops of the grooves look like they have been shoveled. But there has not been any heavy machinery up there. My guess is that tiny grooves in a generally smooth surface have been filled with wet snow, while the storms blew the sleet off the ridges. Then the grooves were slightly expanded when the water in the sleet froze. Repeat.
The grooves run downhill, fitting the theories of Self-Organization of Sorted
Patterned Ground by Kessler and Werner (SCIENCE VOL 299 17 JANUARY 2003) This being on a mountain top, the grooves can't have been made by running water. Anyway - grooves made by water tend to unite as they run downhill, while these stay parallel.
An amazing amount of naked soil for a summit. I guess it have been protected by grass until quite recently, and will soon be washed away. (Maybe I just get paranoid by reading Collapse by Jared Diamond.)
Cape Blanco Lighthouse
Inside the second order fresnel lens in the lantern room of the Cape Blanco Lighthouse