filtering efficiency
51Evaporative cooler — An evaporative cooler, photographed in Rocky Ford, Colorado, used in the drier parts of the American West to provide economical cooling …
52Loop antenna — A shortwave loop antenna A loop antenna is a radio antenna consisting of a loop (or loops) of wire, tubing, or other electrical conductor with its ends connected to a balanced transmission line. Within this physical description there are two very …
53Comparison of mobile phone standards — A comparison of mobile phone standards can be done in many ways. Contents 1 Issues 2 Comparison table 3 Traceability comparison 4 Strengths and Weaknesses of IS 95 and GSM[4] …
54Lubricant — A lubricant is a substance introduced to reduce friction between moving surfaces. It may also have the function of transporting foreign particles and of distributing heat. The property of reducing friction is known as lubricity. A good lubricant… …
55Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution …
56Biodiesel — This article is about transesterified lipids. For hydrogenated alkane renewable diesel, see Vegetable oil refining. For biomass and organic waste to fuel production, see Biomass to liquid. For unmodified vegetable oil used as motor fuel, see… …
57Stateful firewall — In computing, a stateful firewall (any firewall that performs stateful packet inspection (SPI) or stateful inspection) is a firewall that keeps track of the state of network connections (such as TCP streams, UDP communication) traveling across it …
58Proxomitron — Infobox Software name = Proxomitron caption = Proxomitron main screen on Windows XP developer = Scott R. Lemmon (Deceased) released = frequently updated = yes programming language = operating system = Microsoft Windows language = genre =… …
59Word salad (computer science) — Word salad is a mixture of seemingly meaningful words that together signify nothing; [Lavergne 2006:384] the phrase draws its name from the common name for a symptom of schizophrenia, Word salad. When applied to a physical theory, word salad is a …
60Radeon R300 — ATIGPU name = Radeon 9500 X600 Series codename = Khan created = 2002 entry = Radeon 9550, X300 midrange = Radeon 9500, 9600, X550, X600 highend = Radeon 9700, 9800 d3dversion = 9.0, Shader Model 2.0The Radeon R300 (introduced August 2002) is the… …
