Search results
Results from the WOW.Com Content Network
In the detector the two frequencies add and subtract, and a beat frequency in the audio range results at the difference between them: f audio = |f IF - f BFO | which sounds like a tone in the receiver's speaker. During the pulses of carrier, the beat frequency is generated, while between the pulses there is no carrier so no tone is produced.
BFO is an abbreviation that stands for: Basic Formal Ontology; Beat frequency oscillator used to create an audio frequency signal for receiving continuous wave (Morse code) transmissions; The Black Forest Observatory in Germany; BiFeO 3 (Bismuth ferrite), an inorganic chemical compound; Boron monofluoride monoxide; Budapest Festival Orchestra
The foodservice (US English) or catering (British and Commonwealth English) industry includes the businesses, institutions, and companies which prepare meals outside the home. [1] It includes restaurants , grocery stores , school and hospital cafeterias , catering operations, and many other formats.
Catering is the business of providing food services at a remote site or a site such as a hotel, hospital, pub, aircraft, cruise ship, park, festival, filming location or film studio. History of catering
In firefighting, the policy of two-in, two-out refers to United States Occupational Safety and Health Administration (OSHA) policy 29 CFR 1910.134(g)(4)(i). [1] The respiratory protection standard requires that workers engaged in fighting interior structural fires work in a buddy system; at least two workers must enter the building together, so that they can monitor each other's whereabouts as ...
Bismuth ferrite (BiFeO 3, also commonly referred to as BFO in materials science) is an inorganic chemical compound with perovskite structure and one of the most promising multiferroic materials. [1] The room-temperature phase of BiFeO 3 is classed as rhombohedral belonging to the space group R3c.
Example of the same sign using different contrasting colors. ISO 7001 sets out some general guidelines for how symbols should be utilized, though large aspects are left up to the decision of the individual or entity designing signage for their facility. Symbols were created with the goal of being able to stand alone, without any accompanying text.
The economist Alex Tabarrok has argued, that the success of this promotion lies in the fact that consumers value the first unit significantly more than the second one. So compared to a seemingly equivalent "Half price off" promotion, they may only buy one item at half price, because the value they attach to the second unit is lower than even the discounted price.