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The Hoffman–Singleton graph is an srg(50, 7, 0, 1). The Gewirtz graph is an srg(56, 10, 0, 2). The M22 graph aka the Mesner graph is an srg(77, 16, 0, 4). The Brouwer–Haemers graph is an srg(81, 20, 1, 6). The Higman–Sims graph is an srg(100, 22, 0, 6). The Local McLaughlin graph is an srg(162, 56, 10, 24). The Cameron graph is an srg(231 ...
Room modes are the collection of resonances that exist in a room when the room is excited by an acoustic source such as a loudspeaker. Most rooms have their fundamental resonances in the 20 Hz to 200 Hz region, each frequency being related to one or more of the room's dimensions or a divisor thereof. These resonances affect the low-frequency ...
Room acoustics is a subfield of acoustics dealing with the behaviour of sound in enclosed or partially-enclosed spaces. The architectural details of a room influences the behaviour of sound waves within it, with the effects varying by frequency .
Shared risk resource group (commonly referred to as shared risk group or SRG) is a concept in optical mesh network routing that different networks may suffer from a common failure if they share a common risk or a common SRG. SRG is not limited to optical mesh networks: SRGs are also used in MPLS, IP networks, and synchronous optical networks.
A multipoint ground is at its best when it allows currents of many different frequencies to find a path to ground. If the system is expected to always have no more than main current present, the wavelengths involved at 50 or 60 Hz will cause the system design to become a star topology. But if higher frequencies are present, they need to be closer.
This usually means that the evaporator section of the HRSG will have to be split and the SCR placed in between the two sections. Some low-temperature NOx catalysts have recently come to market that allow for the SCR to be placed between the evaporator and economizer sections (350–500 °F [177–260 °C]). [1] Packaged HRSG
The higher conversion efficiency of the Stirling cycle compared with that of radioisotope thermoelectric generators (RTGs) used in previous missions (Viking, Pioneer, Voyager, Galileo, Ulysses, Cassini, New Horizons, Mars Science Laboratory, and Mars 2020) would have offered an advantage of a fourfold reduction in PuO 2 fuel, at half the mass of an RTG.
Spektr-RG (Russian: Спектр-РГ, Spectrum + Röntgen + Gamma; also called Spectrum-X-Gamma, SRG, SXG) is a Russian–German high-energy astrophysics space observatory which was launched on 13 July 2019. [4]