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The Small Magellanic Cloud (SMC) is a dwarf galaxy near the Milky Way. [5] Classified as a dwarf irregular galaxy, the SMC has a D 25 isophotal diameter of about 5.78 kiloparsecs (18,900 light-years), [1] [3] and contains several hundred million stars. [5] It has a total mass of approximately 7 billion solar masses. [6]
With the merger of Air Force Systems Command and Air Force Logistics Command in 1992, the Space Systems Division was redesignated the Space and Missile Systems Center (SMC). In response to the recommendations of the Space Commission, in 2001 it was reassigned to Air Force Space Command , remaining attached through its redesignation as Space ...
Sheet moulding compound (SMC) or sheet moulding composite is a ready to mould glass-fibre reinforced polyester material primarily used in compression moulding. [1] The sheet is provided in rolls weighing up to 1000 kg. Alternatively the resin and related materials may be mixed on site when a producer wants greater control over the chemistry and ...
The codes given in the chart below usually tell the length and width of the components in tenths of millimeters or hundredths of inches. For example, a metric 2520 component is 2.5 mm by 2.0 mm which corresponds roughly to 0.10 inches by 0.08 inches (hence, imperial size is 1008).
1971: Pentax was the first to use SMC (Super Multi Coating) on all of their lenses. [3] This technology was a milestone in the optical world and is considered one of the best on the market. [4] 1975: World's first distortion-free ultra-wide angle lens (one aspherical element). That lens was the SMC Takumar f/3.5 15mm ultra-wide angle. [5]
The vital part of SMC design is to choose a control law so that the sliding mode (i.e., this surface given by () =) exists and is reachable along system trajectories. The principle of sliding mode control is to forcibly constrain the system, by suitable control strategy, to stay on the sliding surface on which the system will exhibit desirable ...
The SMC is very similar to the more popular Jaccard index. The main difference is that the SMC has the term in its numerator and denominator, whereas the Jaccard index does not. Thus, the SMC counts both mutual presences (when an attribute is present in both sets) and mutual absence (when an attribute is absent in both sets) as matches and ...
SMC jack connectors have an external thread while SMC plug connectors have the mating hex nut. The contact dimensions are identical to the snap-fit SMB. Available in 50 ohm and 75 ohm characteristic impedance, they provide an interconnect means for small form factor coaxial cables (e.g. 50 ohm RG-174 , 75 ohm RG-179 ) and printed circuit boards ...