utorak, 07.02.2012.
LOOP FILTER DESIGN - LOOP FILTER
Loop Filter Design - Junk Email Filter Not Working.
Loop Filter Design
- Filter design is the process of designing a filter (in the sense in which the term is used in signal processing, statistics, and applied mathematics), often a linear shift-invariant filter, which satisfies a set of requirements, some of which are contradictory.
- A shape produced by a curve that bends around and crosses itself
- A curved stroke forming part of a letter (e.g., b, p)
- cringle: fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines
- move in loops; "The bicycle looped around the tree"
- A length of thread, rope, or similar material, doubled or crossing itself, typically used as a fastening or handle
- anything with a round or oval shape (formed by a curve that is closed and does not intersect itself)
753 - ThanksGiving Feast - Pattern
And now for a ThanksGiving Texture...
Sit down and enjoy the texture... your mother worked all day on it, so you kids had better be nice, and tell her how much you enjoy the meal. No Mary, you can't have your dessert first. John, leave your tie on.... Grandma like seeing you with it on. Perter.... I better not catch you stuffing mashed potatoes in your pockets this year. .... or else!
This seamless texture was illustrated by Patrick Hoesly a Kansas city based illustrator specializing in architectural illustrations and graphic design.
What is a Seamless Texture / Pattern?
A seamless texture is an special image, where one side of a image exactly matches the opposite side, so that the edges blend into each other when repeated. Seamless textures are used for desktop wallpaper, webpage backgrounds, video games, Photoshop fills and in 3D rendering programs.
How did you make it?
This texture was made using software specially designed to aid in seamless texture creation. Some of the programs I’ve use are Photoshop, Illustrator, Filter Forge, Genetica, Image Synth, Alien Skin, Topaz Labs, Imagelys, and even a pen and paper.
Magnetic Loop Antenna
This is a external view of a cryogenic Magnetic Superconductor Loop Antenna or HTS Antenna to be used in transoceanic Middle Wave DXing. LN2 mean Liquid Nitrogen.
It uses a mechanical variable capacitor to give a better Q factor to the ressonance. This antenna acts as an extreme filter given much better receiver front-end, high gain and low noise. It's possible that it uses a fix capacitor and then a sliding ferrite stick... Today this is yet only a fantasy not a schematic draw. Please read slice tunning like =>slide tunning. I invite you to visit this album. DXCB is our DXers club. Tks.
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