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Peak efficiency of the gas turbine was 15-16%; note that these numbers do not include losses from the electrical power transmission. Efficiency was low compared to contemporary diesel engines which typically had fuel efficiencies around 26-28%. [1] Poor efficiency was a major reason why gas turbine locomotives were not widely adopted. [2]
For devices with very high output impedances, such as with a guitar pickup or a high-Z mic, a DI box can help with impedance bridging by converting the high output impedances to a lower impedance so as to not require the receiving device to have outrageously high input impedance (which would suffer drawbacks such as increased noise in long ...
Whenever a source of power with a fixed output impedance such as an electric signal source, a radio transmitter or a mechanical sound (e.g., a loudspeaker) operates into a load, the maximum possible power is delivered to the load when the impedance of the load (load impedance or input impedance) is equal to the complex conjugate of the ...
The output impedance is a measure of the source's propensity to drop in voltage when the load draws current, the source network being the portion of the network that transmits and the load network being the portion of the network that consumes. Because of this the output impedance is sometimes referred to as the source impedance or internal ...
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If energy output and input are expressed in the same units, efficiency is a dimensionless number. [1] Where it is not customary or convenient to represent input and output energy in the same units, efficiency-like quantities have units associated with them. For example, the heat rate of a fossil fuel power plant may be expressed in BTU per ...
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The Social Security Administration has announced of a 2.5% cost-of-living adjustment (COLA) for 2025 -- that's lower than the 3.2% increase in 2024 and 8.7% increase in 2023. The smaller COLA ...