cutoff characteristic
81Factor analysis — is a statistical method used to describe variability among observed, correlated variables in terms of a potentially lower number of unobserved, uncorrelated variables called factors. In other words, it is possible, for example, that variations in …
82Space debris — populations seen from outside geosynchronous orbit (GEO). Note the two primary debris fields, the ring of objects in GEO, and the cloud of objects in low earth orbit (LEO) …
83History of Kansas — The history of Kansas is rich with the lore of the American Old West. Located on the eastern edge of the Great Plains, the U.S. state of Kansas was the home of nomadic Native American tribes who hunted the vast herds of bison. The region first… …
84Envelope detector — An envelope detector is an electronic circuit that takes a high frequency signal as input, and provides an output which is the envelope of the original signal. The capacitor in the circuit stores up charge on the rising edge, and releases it… …
85Ufology — is a neologism coined to describe the collective efforts of those who study unidentified flying object reports and associated evidence. Not all ufologists believe that UFOs are necessarily extraterrestrial spacecraft, or even that they are… …
86Renoise — 2.6 running on Mac OS X Original author(s) Eduard Mueller (Taktik) and Zvonko Tesic (Phazze) Developer(s) Eduard Mueller (Taktik), Lucio Asnaghi (kRAkEn/gORe) and Erik Jälevik …
87Control grid — The control grid is an electrode used in thermionic valves (vacuum tubes) used to modulate the flow of electrons in the cathode to anode or plate circuit. Contents 1 Operation 2 Construction 3 Effects of grid position …
88Rotational spectroscopy — Part of the rotational vibrational spectrum of carbon monoxide (CO) gas (from FTIR), showing the presence of P and R branches. Frequency is on the x axis, and absorbance on the y axis. Rotational spectroscopy or microwave spectroscopy studies the …
89Digital control — is a branch of control theory that uses digital computers to act as system controllers. Depending on the requirements, a digital control system can take the form of a microcontroller to an ASIC to a standard desktop computer. Since a digital… …
90Porsche 993 — Infobox Automobile name=Porsche 993 aka=Porsche 911 Porsche Carrera manufacturer=Porsche class=sports car layout=Rear engine, rear wheel drive body style=2 door coupe 2 door convertible engine=3.6 L flat 6 3.8 L flat 6 predecessor=Porsche 964… …
