PANT
发表于 2025-3-25 05:00:29
ite positioning systems. Practical realization (.mise en pratique.) the base units (metre, kilogram, second, ampere, kelvin, candela, and mole), new defined in the revised SI, is presented in details. Another n978-3-030-19679-0978-3-030-19677-6
Nonflammable
发表于 2025-3-25 07:54:28
Theoretical Background of Quantum Metrology,wave function, the Pauli exclusion principle, and the Heisenberg uncertainty principle. The latter is illustrated with sample numerical calculations using this principle. We briefly discuss the application of quantum effects in metrology, and present and compare the limits of accuracy and resolution
思考才皱眉
发表于 2025-3-25 13:28:20
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intricacy
发表于 2025-3-25 18:33:25
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nonradioactive
发表于 2025-3-25 23:36:17
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IRK
发表于 2025-3-26 02:55:45
SQUID Detectors of Magnetic Flux,, which have a single Josephson junction in a closed magnetic circuit and are biased with radio-frequency signal, are discussed with their parameters provided. At much greater length we discuss DC-SQUIDs, which have two Josephson junctions and are biased with direct current. The equation describing
圣歌
发表于 2025-3-26 06:26:39
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先驱
发表于 2025-3-26 08:55:10
Quantization of Electrical and Thermal Conductance in Nanostructures,on that electrical conduction can be modeled as transfer of electrons between two electron reservoirs, the Landauer theory proves to describe particularly well the electrical resistance in nanoscale conductors, i.e., in nanostructures. Surprisingly, this theory implies that the conductance (and resi
META
发表于 2025-3-26 15:37:07
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陶醉
发表于 2025-3-26 18:34:35
Atomic Clocks and Time Scales,g the frequency fluctuations in such standards. We present the design of the 9.2 GHz caesium standard, which is presently the most important atomic standard. We discuss the directions of development and the metrological parameters of caesium atomic standards: more complicated and expensive, but prov