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Starter (engine)

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For other uses, see Starter. An automobile starter motor (larger cylinder). The smaller object on top is a starter solenoid which controls power to the starter motor. A starter (also self-starter , cranking motor , or starter motor ) is a device used to rotate (crank) an internal-combustion engine so as to initiate the engine's operation under its own power. Starters can be electric, pneumatic, or hydraulic. In the case of very large engines, the starter can even be another internal-combustion engine. Internal-combustion engines are feedback systems, which, once started, rely on the inertia from each cycle to initiate the next cycle. In a four-stroke engine, the third stroke releases energy from the fuel, powering the fourth (exhaust) stroke and also the first two (intake, compression) strokes of the next cycle, as well as powering the engine's external load. To start the first cycle at the beginning of any particular session, the first two strokes must be powered in some oth...

Rail Safety and Standards Board

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"RSSB" redirects here. For the spiritual organization, see Radha Soami Satsang Beas. Rail Safety & Standards Board Abbreviation RSSB Formation 2003 Purpose Lead and facilitate the rail industry's work to achieve continuous improvement in the health and safety performance of the railways in Great Britain Location The Helicon, South Place, London Region served Great Britain Chief Executive Mark Phillips Website RSSB The Rail Safety and Standards Board (RSSB) is a British independent not-for-profit company limited by guarantee, which was established in 2003 upon the recommendation of the public inquiry into the Ladbroke Grove rail crash. [1] It is owned by rail industry stakeholders, including Network Rail, infrastructure managers, train operating companies and rolling stock companies. [2] As a condition of their license obligations, most train operators are required by the Office of Rail and Road (ORR) to be members of RSSB and to comply with the obligations of memb...

Hardware RNG Bias

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Clash Royale CLAN TAG #URR8PPP 5 2 $begingroup$ I have generator based on sampled noise (reverse-biased transistor - actually ChaosKey but that's not that important). The noise source is fed into ADC and sampled with 16bit resolution (2 bytes). Problem is, the signal level is not high enough to cover whole range of ADC so what i am getting insted of 0-65535 i am getting something like 0-4096. If I plot histogram of this data i see normal distribution and spectrum of the signal is more or less flat (white noise - looks fine on the graph) But when i write this to a file or use it as bit stream, i have heavy bias. That is understandable - 4 bits from upper byte is always zero so the file is guaranteed to have lot more zeroes than ones (12.5% at least, probably even more). So the amount of entropy in this data is pretty low. Now taking into account NIST SP 800-90B requirement for monitoring entropy sources i should monitor raw output to check if the generator didn't ...